The Boundaries Of Consent By Thomas Hobbes And John Locke...

According to Britannica.com, consent is defined as, â€Å"an act of permitting something to be done or of recognizing some authority.† This definition is a fact that almost all political theorists can agree on, however, the boundaries surrounding this definition leaves us asking many questions; how did we consent, to whom do we consent to, and when did we consent? Most importantly is the question: did we consent at all? When we go back to the fundamentals of defining how, when, and if we consented, we will derive that we never consented at all. In the following essay, I will define the boundaries of consent, give a summary of the various philosophical arguments given for political obligation, and disseminate these arguments. There are five main theories to political obligation: Consent Theory, Fairness Theory, Community Theory, Morality Theory, and Philosophical anarchism. The most significant argument for political obligation is called consent theory. Consent theorists, such as Thomas Hobbes and John Locke, believe that we should obey the law because we have consented to do so. Although all consent theorists can agree that we have consented to the law, the boundaries of consent are a common disagreement. Therefore, when considering political authority and obligation, we must first develop the boundaries of consent. There are two different types of consent within political theory; expressed consent and tacit consent. One gives expressed consent when we announce – either throughShow MoreRelatedThomas Hobbes, John Locke and Samuel Rutherford1678 Words   |  7 Pagesfor changes in the way their government was set up. John Locke and Samuel Rutherford were the leaders of this change, calling for the removal of an absolute monarch. Their works would be opposed by the ideas of Thomas Hobbes, during this eighteen-year civil war in England. The ideas represented in this period would heavily influence the way England’s government would be set up in the eighteenth century. In 1644 Bishop Ross, also known as John Maxwell, published Sacro-Sancta Regum Majestas.The article’sRead MoreState of Nature and Freedom: Leviathan by Thomas Hobbes1424 Words   |  6 PagesState of Nature and Freedom In the Leviathan, Thomas Hobbes places limits on the freedom of individuals in the social contract, as well as individuals in the state of nature. Hobbes writes that in the state nature, â€Å"the liberty each man hath to use his own power as he will himself for the preservation of his own nature; doing anything which, in his own judgement and reason, he shall conceive to be the aptest means there unto† (ch. 14,  ¶1). An individual’s will is only free when there is no extraneousRead MoreThe Greatest Effects Of The Enlightenment Era2374 Words   |  10 PagesThe Enlightenment era spanned the late 16th and 17th hundreds and it was a movement in which thinkers such as Thomas Hobbes, John Locke, Thomas Pain, and Adam Smith sought to make advances in a similar manner to the occurrences in this period with scientific achievements/improvements. Two of the greatest effects of the Enlightenment era were the American and French Revolutions, which gained their foundation from the revolutionary ideas brought forward by the Enlightenment thinkers. The leaders ofRead MoreCriminal Charges And Its Effect On The Man s Life And The Destruction Of His Property2517 Words   |  11 Pagesinstead of being commended for exercising exceptional restraint and level-headed control he was charged with four weapons related offences that if convicted could result in his incarceration. Two and a half years later Justice Tory Colvin acquitted Thomas of all charges which included careless use of a firearm, pointing a gun and two counts for improper storage of a restricted weapon and ammunition. The decision to eradicate the charges against Thomson, was not based on failure by the crown or theRead MoreJohn Locke s Social Contract Theory Essay2234 Words   |  9 Pages 1 John locke’s social contract theory Mohd Furkan M.A.(politics: international and area study) AIS, JAMIA MILLIA ISLAMIA NEW DELHI INTRODUCTION The mutual agreement that pave the way for a person enters into a civil society is called social contact. The theory of social contract belongs in an especial manner to the political philosopher of the seventeenth and eighteenth century. But it did not originate with them. It had its roots in the popular consciousness of the mediaevalRead MoreTenets of Classic Liberalism Theory1308 Words   |  6 Pagesindividuals must be accorded the civil liberties and the government to be accorded minimum powers. Individual liberty plays a major role when liberalism classical is brought into the equation. â€Å"The major contributors to the liberalism classical include John Locke and Adam Smith. To a large extent, its ideologies seem to be contradictory to the utilitarianism theory† (Barish, 32). As already argued, the major ideology of the liberalism classical theory, is the argument that the government ought to be as smallRead MoreCompare and Contrast the Views of the State of Nature Held by Hobbes and Locke.2718 Words   |  11 Pagesthe likes of Hobbes, Rousseau and Locke wrote about it, it means man when he was natural in his state of nature, uninfluenced by society, and the temptations of today. There are no rights in a state of nature, only freedom to do as one wishes. It is a term used to illustrate the theoretical condition of civilization before the states foundation in Social Contract Theories. In the dictionary it is described as â€Å"a wild primitive state untouched by civilization.† Both Hobbes and Locke discuss the stateRead MoreVarious Topics incomplete1893 Words   |  8 Pagesalleged lack in medieval intellectual life. During the middle ages, the education infrastructure of Europe was overseen if not managed by the church. That role, which meant acting as both the supporter of academic freedom and the protector of its boundaries, tended to be carried out with a light touch and by ensuring the right people were placed in the key positions. Combined with their status as self-governing corporations of scholars, this gave the universities independence from local influence andRead MoreJohn Locke : The Second Treatises Of Government2344 Words   |  10 PagesJohn Locke was an incredibly encouraging figure in the development of the ideals and methods of political functioning in the United States of America. John Locke applied many of his studies to write one of his most famous and moving works. â€Å"The Second Treatises of Government† is the document which ultimately struck the United States in their creation of the Declaration of Independence. In Locke’s work he had focused on the idea that governments shouldn’t be dictated by anyone person, but ultimatelyRead MoreLockes Explanation of Creation, Value and Protection of Property5870 Words   |  24 Pages ‘The great and chief end... of Mens uniting into Commonwealths, and putting themselves under Government, is the preservation of their property’ (Second treatise, para.124). How and why does Locke explain the creation, value and protection of property? Locke says that the state has a responsibility to preserve people’s private property. He (1688) says â€Å"The great and chief end, therefore, of men’s uniting into common-wealths, and putting themselves under government

Title Police Abuse. The essay includes the definition of...

Police Abuse An officer who uses more force than policy allows is said to have used excessive force and may be guilty of police brutality, the excessive and lawless use of police force. Police officers are often seen as a thin blue line of protection between criminals and law-abiding citizens, but when they use excessive force, they cross the line and become criminals. Police brutality damages the image of law enforcement as well as the justice system. It leads to loss of trust in the policemen, which then creates a gap between them and people in the community. According to the early policing principles imported from 19th century England, it is the lack of centralized control which forms a corruption in America when opportunities of†¦show more content†¦Furthermore, police officers should receive antiracism and diversity training as a part of their education in police academies. Police officers must learn to conduct themselves in multiethnic and multicultural communities. To fund this solution, everyone must cooperate by respecting the police officers in our community and the law of United States of America. Without the cooperation of everyone, the prevailing widespread of police brutality will continue to grow. The people should give a serious thought of what they are doing in order to avoid violence. Let s just think about the victims of violence and how thousands of people die every year because of brutality. Let s not make one of our families and our next generations become a victim of these humiliating, devastating and inhuman e acts of the police. We, as a nation, need concerted effort in protest for all the victims whose lives have been stolen and sacrifice. The goal must be nothing short of creating a just, humane, peaceful and less violent society. If there is no justice, there will be no peace in the United States. The widespread of police brutality has widened all over the world. The nation must join together to eliminate repression, unjust and abusive treatment by the police in order to have a moreShow MoreRelatedRastafarian79520 Words   |  319 PagesBarrington Edmonds. p. cm. Includes bibliographical references and index. ISBN 0-19-513376-5 1. Rastafari movement. 2. Jamaica—Religious life and customs. I. Title. BL2532.R37 E36 2002 299†².676—dc21 2002074897 v To Donnaree, my wife, and Donnisa, my daughter, the two persons around whom my life revolves; and to the ancestors whose struggles have enabled us to survive and thrive This page intentionally left blank Foreword One of the most useful things about Ennis Edmondss Rastafari:Read MoreStephen P. Robbins Timothy A. Judge (2011) Organizational Behaviour 15th Edition New Jersey: Prentice Hall393164 Words   |  1573 Pagesprinted in initial caps or all caps. Library of Congress Cataloging-in-Publication Data Robbins, Stephen P. Organizational behavior / Stephen P. Robbins, Timothy A. Judge. — 15th ed. p. cm. Includes indexes. ISBN-13: 978-0-13-283487-2 ISBN-10: 0-13-283487-1 1. Organizational behavior. I. Judge, Tim. II. Title. HD58.7.R62 2012 658.3—dc23 2011038674 10 9 8 7 6 5 4 3 2 1 ISBN 10: 0-13-283487-1 ISBN 13: 978-0-13-283487-2 Brief Contents Preface xxii 1 2 Introduction 1 What Is Organizational

Essay about Net Neutrality Impact Essay Example For Students

Essay about Net Neutrality Impact Essay IntroductionThis paper takes the look at Net Neutrality’s impact in business and the debate it has recently started. Net Neutrality is a network design concept that argues for broadband network providers to be completely detached from what information is sent over their networks. It makes the argument that no bit of information should be given priority over another. This implies that an information network such as the internet is most efficient and useful to the public when it is less focused on a particular audience rather attentive to multiple users. (Net Neutrality: definition)In 2011, the Federal Communication Commission (FCC) implemented regulations to prevent Internet providers from limiting users’ access to specific websites and services. The U.S. Court of Appeals decided that although the FCC has the legal authority to regulate broadband Internet, the rules were based on statutes that pertain only to telecommunications services. A 2005 ruling previously in the Supreme Court, describe Internet provider as providing information and not telecommunication service.With this form of regulation, a provider is not able switch to tiered plans that charge additional fees for access to services like Netflix or YouTube. Consequently a persons online experience would depend on what they are willing to spend. As the number of sites on the Internet continues to grow and the quality of data becomes more sophisticated broadband service providers are seeking to regulate how data flows to users through their already taxed networks. Net Neutrality’s Background and RelevanceNet Neutrality or Network Neutrality, the idea has always been even though it did not have a name. It predates the internet starting with the telegraph, specificall. . Cable Box Comments. N. p., 1 Oct. 2013. Web. 8 Mar. 2014. .NET NEUTRALITY: definition. NET NEUTRALITY: definition. N. p., n.d. Web. 4 Mar. 2014. .Net Neutrality. PBS. PBS, n.d. Web. 5 Mar. 2014. .Pehnelt, Gernot. The Economics of Net Neutrality Revisited. 27 October 2008. Document.The Pacific Telegraph Act (1860). The Pacific Telegraph Act (1860). N.p. , n.d. Web. 5 Mar. 2014. org/Museum/Pacific_Telegraph_Act_1860.html>.Wu, Tim, Network Neutrality, Broadband Discrimination. Journal of Telecommunications and High Technology Law, Vol. 2, p. 141, 2003. Available at SSRN: http://ssrn.com/abstract=388863 or http://dx.doi.org/10.2139/ssrn.388863

Strategic Alliance Recommendations

Formation of strategic alliances in the international front requires proper assessment of the environmental conditions in the identified country. Therefore, in this case Dell has to assess the trade conditions in the UK before the establishment of a strategic alliance in the region.  Such evaluation must take into account all the factors that affect the computer business in the UK.Advertising We will write a custom essay sample on Strategic Alliance Recommendations specifically for you for only $16.05 $11/page Learn More Based on the PESTEL model, the first group of factors falls within the realm of political requirements. In this case, Dell Inc has to assess the current and future legislations that directly affect the computer industry. The computer industry is in the UK is a lucrative industry due to high demand of computer products. However, the sector is heavily regulated by the government to ensure secure trade in computer products and services. I ssues such as data security have subjected the sector to intense regulations in the UK. Dell will therefore have to adhere to the requirements before establishing its strategic alliance in the region. With regards to political stability, the UK region is one of the regions in the world that is politically stable. With regards to economic issues, the UK is currently enjoying a state of economic recovery after the financial and economic crisis in the year 2008. The current economic conditions also favor the development of trade in the region. Most countries in the region such as the England and Ireland also experience a constant growth rate in the GDP. However, it is important to note that the region’s economy relies on very complicated financial services such as the subprime mortgages in the U.S. such conditions may lead to a future financial crisis if they are not solved. Socially, the UK region is one of the areas in the world that has a diverse range of social aspects that affect the manufacturing sector. The consumption in the country is heavily determined by the demographic factors such as age and gender. Consumption of computer products and service is higher among the youths and adults in early middle age. The consumer purchase decisions in the region are also affected by the value of the brand. The media sector plays an important role in influencing the consumer behavior in the region.Advertising Looking for essay on business economics? Let's see if we can help you! Get your first paper with 15% OFF Learn More Technological environment in the UK is highly developed. The UK is the center of innovation in the world. Apart from the U.S. and Japan, the UK is one of the regions in the world that has highly developed technologies. This therefore presents a good opportunity for Dell to establish its alliances in the region. However, the company should be ready to experience intense competition due to the presence of other locally based com puter firms. With regards to environmental issues, the UK has tough environmental laws that control the activities of the environment. However the region has abundant natural resources that are important for operations of the company. Legal issues greatly influence the computer industry in the region. The UK has established regulations that are meant to control the establishment of trade. In spite of the aforementioned factors in the PESTEL analysis, I will not suspend or limit the operations of the company in UK due to availability of natural resource, better trade conditions, proper strategic location that can be easily accessed by many consumers across the world. The region has good trade networks, which Dell can use to import raw materials from other parts of the world and at the same time export its finished products. This essay on Strategic Alliance Recommendations was written and submitted by user Maya D. to help you with your own studies. You are free to use it for research and reference purposes in order to write your own paper; however, you must cite it accordingly. You can donate your paper here.

Locke Essay Research Paper John Locke free essay sample

Locke Essay, Research Paper John Locke John Locke was an English philosopher. He was born at Wrington, Somerset, on August 29, 1932. He had attended the University of Oxford. Locke had spent his boyhood in Beluton, near the small town of Pensford. But the house no longer stands at that place. Locke s parents, John Locke and Agnes Keene, were married in 1630 and John was said to be a pious adult female and Locke speaks of her with fondness. But the greater influenced seems to be from his male parent. Locke s male parent was a Puritan attorney who fought for Cromwell in the English Civil War. Locke was trained to sobriety, industry, and enterprise and made to love simpleness and to detest inordinate decoration and show. Early in Locke s life, he learnt the significance of political autonomy. He would hear his male parent expound the philosophy of the rightful sovernity of the broadened changed his mentality, but there can be no uncertainty that his cardinal attitude of life was determine for him. We will write a custom essay sample on Locke Essay Research Paper John Locke or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page John Locke believed that revolution could be justified if authorities failed to function their citizens but that people are willing to bear serve adversities before they restort to revolution. The Declaration of Independence is in consequence a public justification for revolution against an abu sive sovereign. John Locke John Locke was an English philosopher. He was born at Wrington, Somerset, on August 29, 1932. He had attended the University of Oxford. Locke had spent his boyhood in Beluton, near the small town of Pensford. But the house no longer stands at that place. Locke s parents, John Locke and Agnes Keene, were married in 1630 and John was said to be a pious adult female and Locke speaks of her with fondness. But the greater influenced seems to be from his male parent. Locke s male parent was a Puritan attorney who fought for Cromwell in the English Civil War. Locke was trained to sobriety, industry, and enterprise and made to love simpleness and to detest inordinate decoration and show. Early in Locke s life, he learnt the significance of political autonomy. He would hear his male parent expound the philosophy of the rightful sovernity of the broadened changed his mentality, but there can be no uncertainty that his cardinal attitude of life was determine for him. John Locke belie ved that revolution could be justified if authorities failed to function their citizens but that people are willing to bear serve adversities before they restort to revolution. The Declaration of Independence is in consequence a public justification for revolution against an opprobrious sovereign.

Preparation for Professional Practice. The WritePass Journal

Preparation for Professional Practice.ï » ¿ Introduction Preparation for Professional Practice.ï » ¿ ] Department of Health (2008) High Quality Care for All – NHS Next Stage, Available [online] at:dh.gov.uk/en/Consultations/Liverconsultations/DH_085812[Accessed 20 March 2013] Ellis, J.R and Hartley, C.L., 2004. Nursing in today’s world trends, issues management 8th edition: Lippincott Williams and Wilkins. Faugier, J. Woolnough, H. (2002) â€Å"National nursing leadership programme†, in  Mental Health Practice, 6 (3): (pp28-34) Gopee, N. Galloway, J. (2009) Leadership and Management in Healthcare, London: Sage Hersey, P., Blanchard, K.H. Johnson, D.E. (2001) Management of Organisational Behaviours: Leading Human Resources, (8th edn), Upper Saddle River, NJ: Prentice-Hall Huston, C., 2006. Professional Issues in Nursing. Philadelphia: Lippincott Williams and Wilkins. USA. Huber, D.L. (2006) Leadership and Nursing Care Management, (4th edn), Maryland Heights: Saunders Elsevier King’s Fund (2011) â€Å"The future of leadership and management in the NHS: No more heroes† Report from The King’s Fund Commission on Leadership and Management in the NHS Lambert, R. Githens-Mazer, J. (2010) Islamophobia and the Anti-Muslim Hate Crime: UK Case Studies 2010, Exeter: University of Exeter Marquis, B.L. Houston, C.J., 2000. Leadership Roles and Management Functions in Nursing. 3rd edition. Lippincott Williams and Wilkins publishers. USA. Norman, I. , Ryrie, I., 2009 Art and Science of Mental Health Nursing: A Textbook of Principles, Berkshire: Open University Press/McGraw-hill Education Nursing and Midwifery Council. 2002a. The Code of Professional Conduct. London: NMC. Nursing and Midwifery Council. 2008. The Code of Professional Conduct: Standards for conduct, performance and ethics- Protecting the public through professional standards. London: Nursing and Midwifery Council; 2009. nmc-uk.org. Oliver, S. (2006) â€Å"Leadership in health care†, in Musculoskelet Care 4(1), (pp38-47) Royal College of Nursing (2011) â€Å"Accountability and delegation: What you need to know†, Available [online] at: rcn.org.uk/__data/assets/pdf_file/0008/361907/Accountability_HCA_leaflet_A5_final.pdf [Accessed November 15 3012] Sullivan, E.J. Decker, P.J. (2009) Effective Leadership and Management in Nursing, (7th edn.), London: Pearson International Edition Yoder-Wise, P.S., 2007. Leading and Managing in Nursing 4th edition. USA. Mosby Inc. Yoder-Wise, P.S. (2011) Leading and Managing in Nursing, (5th edn), St. Louis: Elsevier Mosby. http://education.exeter.ac.uk/dll/studyskills/harvard_referencing.htm Use this link to learn how to Harvard reference properly. Your referencing is inconsistent and you need to list pages when quoting or referring to a specific point. As a general rule though, the main trick with referencing is continuity, so make sure your references and bibliography are consistent. Appendix 1: SMART Goal Delegation skills development Specific Measurable Achievable Realistic Time To prioritise all my tasks and manage time effectively and efficiently in all shifts. Commuting between London and the university has taught me the value of time management. Time management will enable me to carry out other tasks and achieve goals. More to the point, time management will provide me with personal organisation and self-discipline, as recommended by   Yoder-Wise (2011) Time management will be measurable as I will be able to identify whether the tasks set out on a specific shift have been successfully completed on time whenever I’m taking over handover from night shift team members. Prioritisation is achievable by use of my diary which will contain all the tasks that need to be completed by the end of the day. Furthermore, prioritising will help me schedule tasks in the order of urgency. This will leave me room to tackle emergency situations that arise during the shift. Prioritisation is realistic because I realise that as a newly-qualified my responsibility will be to ensure that the shift runs smoothly. My diary will also be helpful as it will keep me reminded of the tasks I have to carry out and those which are still pending. In the case of pending tasks, being organised will give me sufficient time to involve staff who will be doing the next shift staff to complete them. Prioritising is an ongoing skill that I will have to keep learning during the first six months of qualifying and for the rest of my nursing career. Confidence and assertiveness while delegating tasks to other members of staff. Once a delegated task has been successfully completed and goals achieved confidence in allocating tasks to members of staff will have worked for me. By receiving feedback and constructive criticism from members of staff once they have successfully accomplished the delegated tasks. Being organised and maintaining a therapeutic relationship with fellow members of staff will increase my feelings of certainty that the shift will run smoothly relationship with staff. At the start of every shift I will allocate tasks to members of staff who have the competence, knowledge, time and willingness to carry them out and complete them. This is realistic because it will be my responsibility to manage shifts on the ward once I qualify. It will also be my duty to allocate or delegate tasks to members of staff. Likewise, during handover, I will ensure that I brief incoming staff on how the shift went and what remains to be done when they will be on shift. Based on my experience, so far, I’m very hopeful that I will achieve this goal within six months after I qualify. Appendix 2. Service Improvement Activity- Notification Form Contact Details Student SID Number: 0914451 Details of service improvement project/activity  Ã‚  Ã‚  Ã‚  Ã‚   Service user Rehabilitation unit managing self medication. Reason for development  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   To improve independent skills in managing medication for patients in rehabilitation centre so as to reduce the risk of relapse and to provide person centred care as well as empowering the service users. Time spent on project activity The time spent on self medication informative project was about six weeks. Resources used The Trust policy, The risk assessment form, The patient consent form, The patient withdrawal form, self- administration monitoring form (stages), self- administration patient record chart. Who was involved    Nursing staff, doctors (MDT), Pharmacist , student (myself) and the service users. Future plans    To review the self- administration if it is effective at a set time. Nurses involved in supervision of the programme must be registered nurses. Date discussed with clinical staff in placement area: (seen and agreed by my mentor Lorna Newton). And discussed with my IBL Facilitator Justin Nathan.

Stock Price and Information Essay Example | Topics and Well Written Essays - 5000 words

Stock Price and Information - Essay Example This will benefit existing shareholders.however; the potential new shareholders are not stupid. They will infer overvaluation from the new issue, thereby bidding down the stock price on the announcement date of the issue. So, for the information asymmetry stock price is raised.therefore, information affects stock price in many way. There is substantial evidence of short-term stock price continuation, which the prior literature often attributes to investor under reaction to new information. 1 By information uncertainty, it is meant that ambiguity with respect to the implications of new information for a firm's value, which potentially stems from two sources: The volatility of a firm's underlying fundamentals and poor information. Here, main hypothesis is that if investors under react to public information, they will under react even more in cases of greater information uncertainty. The testable implication is that greater information uncertainty about the impact of news on stock value leads to higher expected stock returns following good news but lower expected stock returns following bad news relative to the returns of stocks about which there is less information uncertainty. ... Several papers including Chan, Jegadeesh, and Lakonishok (1996) attribute price continuation to a gradual market response to information. Hirshleifer (2001) and Daniel, Hirshleifer, and Subrahmanyam (1998, 2001) posit that psychological biases are increased when there is more uncertainty. New information is public, easily categorized as good or bad, and occurs fairly frequently. There are six proxies for information uncertainty: Firm size, firm age, analyst coverage, dispersion in analyst forecasts, return volatility, and cash flow volatility.2 For each of the six proxies, greater information uncertainty leads to relatively lower future stock returns following bad news and relatively higher future returns following good news, suggesting that uncertainty delays the flow of information into stock prices. In other words, the market reaction to new information is relatively complete for low-uncertainty stocks, and there is little news-based return predictability. For high-uncertainty stocks, on the other hand, the market reaction is far from complete. Good news predicts relatively higher future returns and bad news predicts relatively lower future returns. This relation between information of uncertainty and future returns has used in prior empirical studies. Further assu rance that is missing risk factors does not drive the results by documenting a similar return pattern around subsequent earnings announcement dates. The opposite effects of information uncertainty on stock returns following good vs. bad news amplify the results of trading strategies. As a result, trading strategies that buy good-news stocks and short bad-news stocks work particularly well when limited to high-uncertainty stocks. For example, a momentum

African American History Essay Example | Topics and Well Written Essays - 1250 words - 1

African American History - Essay Example The following study text will evaluate King’s role in the Civil Rights Movement with regards to his unique and effective strategies applied in acquiring overwhelming victory against white supremacy. Born in January 1929 as Michael Luther King, King grew up in religious environment and both his father and grandfather were pastors at the Ebenezer Baptist Church in Atlanta. In 1948, he earned a B.A. at the Morehouse College and proceeded to the Crozer Theological Seminary in 1951. In 1955, he earned a doctorate from the Boston University where he also happened to meet his wife Coretta Scott. After his graduation from Boston University, he began his pastoral role as at the Montgomery Avenue Baptist Church. This is where his journey into world history began. Rosa Sparks, a young black woman refused to give up her seat for a white person to sit in a bus and this had sparked controversy all over the United States around 1955. By chance, King’s Montgomery Church was chosen as the meeting venue to host one of the meetings to discuss the matter, and King happened to be there1. The meeting acted to recruit King into his call of advocating for the end to racial discrimination in the United States. Rosa Sparks was thrown into jail and King could not stomach the sense that she had been jailed for failing to give her seat to a white person. Following this, he planned his first public demonstration. In the same year, he mobilized the entire Montgomery [mainly African American] community to boycott the city’s transport service. He demanded equal rights for all. After an unending one year of boycott, a court ruling in Browder V. Gayle put an end to the discrimination on the public bus service and everyone was free to board the buses. This did not end, but sparked a new struggle aimed at eradicating racism all over the United States2. Martin Luther King Jr. was

Labor Reallocation in The Transition Economics Essay

Labor Reallocation in The Transition Economics - Essay Example Some important failures of the capitalist system like the Great Depression serve as the reasons on why the event should be remembered. Capitalism has not tested success on everywhere it was implemented (Aslund, n.d.). Transition Economies The economy which experiences change from a centrally planned economy to free market is defined as transition economies. In this type of economies the central planning organization is not entrusted with the task of setting the price. The market forces tend to determine the prices. There is no restriction to trade and the economy witness economic liberalization. There is tendency towards privatization and the financial sector takes the responsibility in facilitating stability in the economy. The change and creation of institutions characterizes the process of transition. The private enterprises have a major role to play (Atkeson, Andrew and Patrick, 1996, p. 377). The process of transition changes the role of the state. The process encourages the cre ation of different institutions and promotes state owned enterprises and financial institutions which can act independently. The role of the state in the transition transforms from being the provider of growth to an enabler. The private sector serves as the engine of growth in the transition economies. ... China and Vietnam followed the gradual transition mode while Russia and some East-European countries followed the aggressive model of transition. The main indicators of the process of transition include liberalization, macroeconomic stabilization, restructuring and privatization and legal and institution reforms (Boeri and Terrell, n.d. p. 2). A rapid change was expected in the configurations of institutions that structured the transition countries after the collapse of the Soviet Union. Almost all transition economies were expecting to face the twin impacts of recession and income inequality. In order to shift to an economy where wage is determined by the market transitional unemployment is necessary. Structural challenges like shortage of labor demand can result because of long periods of unemployment. The market should set the appropriate price of labor taking into account free mobility of labor and a supportive institutional framework (Nickel, n.d. p. 96). Labor Reallocation in T ransitional Economies The process of transition involves substantial reallocation of labor. Employment in the planned economies is concentrated on the heavy industries. There was absence of small business sector and private initiatives concentrated almost solely in agriculture. The economic planners used to determine the pattern of foreign trade. The Council for Mutual Economic Assistance was used to govern the trade flows in what are now regarded as the transition economies. In the process of transition, employment is concentrated in the small scale business sector. Actually shifting of employment from the state owned industries to these units take place. The success of transaction depends on how efficiently the reallocation of labor has been handled. Comparison of the modification

Major Internet Applications

Major Internet Applications It is traditionally the most significant and remains the most commonly employed. This illustrates the simple structure in which client processes cooperate with individual server process in separate host computers in order to access the shared resources those they mange. Servers may in twist be clients of other servers, as the figure indicates. For example, a web server is frequently a client of a local file server that manages the files in which the web pages are store. For the applications discussed in Exercise 2.1 state how the servers cooperate in providing a service. Web servers and most other Internet services are clients of the DNS service, which translate Internet Domain Names to network addresses. Also, search engines, which enable users to look up summary of information obtainable on web pages at site all over the Internet. A search engine is a web server that responds to client requests to search in its stored indexes and (concurrently) runs several web crawler tasks to build and update the indexes. What are the requirements for synchronization between these concurrent activities? What happen are the server tasks (respond to user queries) and the crawler tasks (making request to other web servers) are completely independent because there is small need to synchronize them and they may run concurrently. In reality, atypical search engine would normally include many concurrent threads of execution some serving its clients and others running web crawlers. The host computers used in peer-to-peer systems is often simply desktop computers in users offices of homes. What are the implications of this for the availability and security of any shared data objects tat they hold and to what extent can any weaknesses be overcome through the use of replication? List the types of local resource that are vulnerable to an attack by an untrusted program that is downloaded from a remote site and run in a local computer. Network communication the program might attempt to create sockets, connect to them, and send messages .Access to printers. It may also impersonate the user in various ways for example: sending receiving email Objects in the file system for example files, directories can be read/written/created/deleted using the rights of the local user who runs the program. Mobile agent is a running program (including both code and data) that movements from one computer to another in a network transport out a task on someones behalf, such as collect information, finally returning with the results. A mobile agent can make many invocations to local resources at each site it visits for example, access individual database entries. Give some examples of applications where the use of mobile code is beneficial. Applets one example of mobile code which means: the user running a browser selects a link to an applet whose code is stored on a web server so the code is downloaded to the browser and runs there Accessing services which mean: running code that can invoke their operations. What factors affect the responsiveness of an application that accesses shared data managed by a server? Describe remedies that are available and discuss their usefulness. When the client accesses a server, it makes an invocation of a process in a server running in a remote computer. These things that affect the responsiveness: Server overloaded, Latency in exchanging request and replies, Load on network. The use of reserve helps with all of the above problems. In fact client reserve reduces all of them. Proxy server reserve helps with duplication of the service also helps with the use of lightweight communication protocols helps with. Distinguish between buffering and caching. Buffering: a method for store data transmit from a sending process to a receiving process in local memory or disk storage until the receiving process is prepared to use it. For example, when reading data from a file or transmitting messages during a network, it is useful to handle it in huge blocks. The blocks are held in buffer storage in the receiving process memory space. The buffer is free when the data has been used by the process. Caching: a technique for optimizing access to isolated data objects by hold a copy of them in local memory or disk storage. Accesses to parts of the remote object are translated into accesses to the related parts of the local copy. Unlike buffering, the local copy may be retained as long as there is local memory obtainable to hold it. A cache management algorithm and a release policy are wanted to run the use of the memory allocated to the cache. Give some examples of faults in hardware and software that can/cannot be tolerated by the use of redundancy in a distributed system. To what extent does the use of redundancy in the appropriate cases make a system fault-tolerant? Hardware faults processors, disks, and network connections can use redundancy for example: run process on multiple computers, write to two disks, have two separate routes in the network available. Software bugs, crashes. Redundancy is not high-quality with bugs because they will be replicated. Replicated processes help with crashes which may be due to bugs in unrelated parts of the system. Retransmitted messages help with lost messages. Redundancy makes faults less likely to occur Consider a pair of processes X and Y that use the communication service B from Exercise 2.14 to communicate with one another. Suppose that X is a client and Y a server and that an invocation consists of a request message from X to Y (that carries out the request) followed by a reply message from Y to X. Describe the classes of failure that may be exhibited by an invocation. An invocation may suffer from the following failures: Crash failures: X or Y may crash. Therefore an invocation may suffer from crash failures. Omission failures: as SB suffers from omission failures the request or reply message may be lost. Describe possible occurrences of each of the main types of security threat (threats to processes, threats to communication channels, denial of service) that might occur in the Internet. Threats to processes: not including authentication of main and servers, a lot of threats exist. An enemy could access other users files or mailboxes. Threats to communication channels: IP spoofing sending requests to servers with a false source address.

Joe Dimaggio Essay -- baseball players

Joe DiMaggio   Ã‚  Ã‚  Ã‚  Ã‚  Joe DiMaggio was one of the best baseball players of all time. He set many records, including the longest wining streak in Major League Baseball history, it lasted 56 games. He came to America as the son of poor Italian immigrants, but grew up to be an American Icon.   Ã‚  Ã‚  Ã‚  Ã‚  Joseph Paul DiMaggio was born on November 25, 1914. His parents were Giuseppe Paolo DiMaggio and Rosalie DiMaggio. He had three brothers and three sisters. His brothers were Michael DiMaggio, Tom DiMaggio, and Vince DiMaggio. His sisters were Dominic, Nellie, and Marie DiMaggio. His father was a fisherman, and his family was poor. They lived in an old, small shack. Vince DiMaggio dropped out of high school and turned his back on fishing. He worked at a fruit stand but still had a lot of talent in baseball. He was looked at by semi-pro teams like the Seals. Both of his older brothers played semi-pro baseball for over one hundred dollars a month. He joined the San Francisco Seals and played for them. Joe DiMaggio grew up in San Francisco and went to school there. He was not bad at school through his elementary year but when he got to high school he didn’t fit in. He was a poor son of a fisherman and his schoolmates were higher classed. He dropped out of high school in 10th grade. He worked as a truck loader, and he crated oranges and worked at a factories, but he was not satisfied doing these odd jobs for minimum wage. He thought that being his brothers Tom and Vince played professional ball for the San Francisco Seals he might be able to too. They played for over $100.00 a month. In 1932 he joined the San Francisco Seals. That year he played 186 games with the Seals. That is a huge amount of games for one season. Joe played for the Seals from 1932-35, but made a large impact on major league baseball scouts.   Ã‚  Ã‚  Ã‚  Ã‚  In nineteen thirty-five, Joe DiMaggio was invited to go to spring training with the New York Yankees. He met the baseball player Lou Gehrig, and other great ball players. Jerry Coleman, the Yankee’s second baseman, said about Joe, â€Å"Nothing made Joe happier then to do well in a big series and help the club win. He was a winner in the finest sense of the word. He was simply the greatest ball player I ever saw and it’s not easy to carry that burden. Joe carried it with class and dignity.† When the Yankee’s left fielder, Charlie Keller met Joe, he said, â€Å"When... ...ll players of all time. Work Cited Page Internet sources: Vizzuso. Hall of Famer Biographies. [Online] Available http://xroads.virginia.edu/~CLASS/AM483_P7/projects/vizzuso/final.html, April 10, 2000. No author. National Baseball Hall of Fame-Joe DiMaggio. [Online] Available http://www.baseballhalloffame.org/hofers_and_honorees/hofer_bios/dimaggio_joe.html, April 10, 2000. Book sources: Stout, Glen. DiMaggio, an Illustrated Life. New York: Walker and Company, 1995. Outline Joe DiMaggio Controlling Purpose-The purpose about this report is to tell about the life of one of the best baseball players ever, Joe DiMaggio. I- Early Life   Ã‚  Ã‚  Ã‚  Ã‚  A.) Birth   Ã‚  Ã‚  Ã‚  Ã‚  B.) Family   Ã‚  Ã‚  Ã‚  Ã‚  C.) School   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  1.) Elementary School   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  2.) High School   Ã‚  Ã‚  Ã‚  Ã‚  D.) Jobs II- San Francisco Seals   Ã‚  Ã‚  Ã‚  Ã‚  A.) Getting There   Ã‚  Ã‚  Ã‚  Ã‚  B.) Career Stats for the Seals III- Yankees   Ã‚  Ã‚  Ã‚  Ã‚  A.) Early Career   Ã‚  Ã‚  Ã‚  Ã‚  B.) Team Leader   Ã‚  Ã‚  Ã‚  Ã‚  C.) Career Stats for the Yankees IV- Family Life   Ã‚  Ã‚  Ã‚  Ã‚  A.) Marriage   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  1.) Marilyn Monroe   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  2.) Dorothy Arnold   Ã‚  Ã‚  Ã‚  Ã‚  B.) Children V- After the Yankees   Ã‚  Ã‚  Ã‚  Ã‚  A.) After the Yankees   Ã‚  Ã‚  Ã‚  Ã‚  B.) Death   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  

Addmaths

ADDITIONAL MATHEMATICS PROJECT WORK 2/2012 â€Å"INDEX NUMBER† NAME: Lio Xing Ying Class: 5I I. C. No:950818-13-6166 School: SMK Marudi TEACHER:Miss Tie Yien Mee Teacher’s signature: CONTENT CHAPTERS| TITLES| PAGES| 1| CONTENT| 2| 2| APPRECIATION| 4| 3| OBJECTIVES| 6| 4| INTRODUCTION| 8| 5| PART A| 11| 6| PART B| 15| 7| PART C| 19| 8| PART D| 24| 9| FURTHER EXPLORATION| 26| 10| CONCLUSION| 28| 11| REFLECTION| 30| APPRECIATION First of all, I would like to thank God for giving us energy, strength and health to carry out this project work. Next, I would like to thank our school for giving us the chance to create this project work.School also provides me the space to discuss and carry out this project work. Not forgetting my beloved parents who provided everything needed in this project work, such as money, Internet, books, computer and so on. They contribute their time and spirit on sharing their experience with me. Their support may raise the spirit in me to do this proj ect work smoothly. After that, I would like to thank our Additional Mathematics teacher, Miss Tie Yien Mee for guiding me throughout this project. When I face some difficulties on doing tasks, she will try her best to teach me patiently until I have done the project work.Then, I would like to thank the proprietor of the shop who was willing to share their experience on business activity and the experience on saving money with me. Lastly, I would like to thank my classmates who shared ideas and providing some helps on solving problems. We help each other until we finished this project work. OBJECTIVES All of our students in 5I are required to carry out an Additional Mathematics Project Work during mid-term holiday. This project is done individually. Upon completion of the Additional Mathematics Project Work, I gain valuable experiences and able to: * Solve routine and non-routine problems. Improve thinking skills. * Knowledge and skills are applied in meaningful ways in solving real- life problems. * Expressing ones mathematical thinking, reasoning and communication are highly encouraged and expected. * Stimulates and enhances effective learning. * Acquire effective mathematical communication through oral and writing and to use the language of mathematics to express mathematical ideas correctly and precisely. * Enhance acquisition of mathematical knowledge and skills through problem-solving in ways that increase interest and confidence. Prepare ourselves for the demand of our future undertakings and in workplace. * Realise that mathematics is an important and powerful tool in solving real-life problems and hence develop positive attitude towards mathematics. * Train ourselves not only to be independent learners but also to collaborate, to cooperate, and to share knowledge in an engaging and healthy environment. * Use technology especially the ICT appropriately and effectively. * Train ourselves to appreciate the intrinsic values of mathematics and to become more creative and innovative. Realize the importance and the beauty of mathematics. INTRODUCTION INDEX An index number is a percentage ratio of prices, quantities or values comparing two time periods or two points in time. The time period that serves as a basis for the comparison is called the base period and the period that is compared to the base period is called the given or current period. A price index measures the change in the money value of an item (or group of items) over time whereas a quantity index measures the non-monetary value of an item (or a group of items) over time.An index number that represents a percentage comparison of the number of cars sold in a given month as compared with that of a base month is a quantity index. A price index represents a comparison of prices between two time periods and, finally, a value index is one that represents a comparison of the total value of production or sales in two time periods without regard to whether the observed difference is a result of differences in quantity, price or both. Index numbers are also differentiated according to the number of commodities or products included in the comparison.A simple index, also known as a relative, is a comparison involving only one item but an index whose calculation is based on several items is known as an aggregate or composite index. A very famous example of a composite index is the Retail Prices Index (RPI), which measures the changes in costs in the items of expenditure of the average household. In  economics  and  finance, an index is a statistical measure of changes in a representative group of individual data points. These data may be derived from any number of sources, including company performance, prices, productivity, and employment.Economic indices (index, plural) track economic health from different perspectives. Influential global financial indices such as the  Global Dow, and the NASDAQ Composite  track the performance of selected large and po werful companies in order to evaluate and predict economic trends. The  Dow Jones Industrial Average  and the  S&P 500  primarily track U. S. markets, though some legacy international companies are included. The Consumer  Price Index  tracks the variation in prices for different consumer goods and services over time in a constant geographical location, and is integral to calculations used to djust salaries, bond interest rates, and tax thresholds for inflation. The GDP Deflator  Index, or real GDP, measures the level of prices of all new, domestically produced, final goods and services in an economy. Market performance indices include the  labour market index / job index  and proprietary  stock market index  investment instruments offered by  brokerage houses. Some indices display market variations that cannot be captured in other ways. For example, the  Economist  provides a  Big Mac Index that expresses the adjusted cost of a globally ubiquitous Big M ac as a percentage over or under the cost of a Big Mac in the U.S. with a U. S. dollar (estimated: $3. 57). Norway prices reflect most relatively expensive Big Mac, at an 84% increase over U. S. prices, or $6. 5725 U. S. The least relatively expensive Big Mac price occurs in Hong Kong, at a 52% reduction from U. S. prices, or $1. 71 U. S. The Big Mac index is used to predict currency values. From this example, it would be assumed that Hong Kong currency is undervalued, and provides a currency investment opportunity. An index number is a percentage ratio of prices, quantities or values comparing two time periods or two points in time.The time period that serves as a basis for the comparison is called the base period and the period that is compared to the base period is called the given or current period. A price index measures the change in the money value of an item (or group of items) over time whereas a quantity index measures the non-monetary value of an item (or a group of items ) over time. An index number that represents a percentage comparison of the number of cars sold in a given month as compared with that of a base month is a quantity index.A price index represents a comparison of prices between two time periods and, finally, a value index is one that represents a comparison of the total value of production or sales in two time periods without regard to whether the observed difference is a result of differences in quantity, price or both. Index numbers are also differentiated according to the number of commodities or products included in the comparison. A simple index, also known as a relative, is a comparison involving only one item but an index whose calculation is based on several items is known as an aggregate or composite index.A very famous example of a composite index is the Retail Prices Index (RPI), which measures the changes in costs in the items of expenditure of the average household. PART A The school Cooperative in one of the schools in your area made a profit of RM 50000 in the year 2011. The cooperative plans to keep the money in a fixed deposit account in a bank for one year. The interest collected at the end of this period will be the poor students in the school. As a member of Board of Cooperative you are to find the total interest which can be collected from different banks.Given below are the interest rates offered by 3 different banks: Bank A, Bank B and Bank C. You are to calculate the interest that can be obtained based on the given rates, if the money is to be kept in the bank for a period of one year for monthly auto renewable, three months auto renewable, six months auto renewable and twelve months auto renewable without withdrawal. Compare and discuss which bank will you choose and explain why. PERIOD| BANK A (% p. a. )| BANK B (% p. a. )| BANK C (% p. a. )| 1 MONTH| 3. 10| 3. 00| 3. 00| 2 MONTH| 3. 10| 3. 00| 3. 00| 3 MONTH| 3. 15| 3. 5| 3. 05| 4 MONTH| 3. 15| 3. 05| 3. 05| 5 MONTH| 3. 15| 3. 10| 3. 05| 6 MONTH| 3. 20| 3. 10| 3. 10| 7 MONTH| 3. 20| 3. 10| 3. 10| 8 MONTH| 3. 20| 3. 10| 3. 10| 9 MONTH| 3. 20| 3. 10| 3. 10| 10 MONTH| 3. 20| 3. 10| 3. 10| 11 MONTH| 3. 20| 3. 10| 3. 10| 12 MONTH| 3. 25| 3. 15| 3. 20| Solution by Geometric Progression Solution Tn = arn–1 r = Tn+1Tn a = 50 000 BANK A * Monthly auto renewable r = 100 + 3. 10100 = 103. 10100 = 1. 0310 T13 = 50 000 x 1. 031013-1 = 50 000 x 1. 031012 = 72 123. 03397 = 72 123. 00 * Three months auto renewable r = 100 + 3. 15100 = 103. 15100 = 1. 0315T5 = 50 000 x 1. 03155-1 = 50 000 x 1. 03154 = 56 603. 9754 = 56 604. 00 * Six months auto renewable r = 100 + 3. 20 100 = 103. 20100 = 1. 0320 T3 = 50 000 x 1. 03203-1 = 50 000 x 1. 03202 = 53 251. 20 * Twelve months without withdrawal r = 100 + 3. 25100 = 103. 25100 = 1. 0325 T2 = 50 000 x 1. 03252-1 = 50 000 x 1. 03251 = 51 625. 00 Bank B * Monthly auto renewable r = 100 + 3. 00100 = 103. 00100 = 1. 0300 T13 = 50 000 x 1. 030013-1 = 50 000 x 1. 030012 = 71 288. 04434 = 71 288. 00 * Three months auto renewable r = 100 + 3. 05100 = 103. 15100 = 1. 0315 T5 = 50 000 x 1. 03055-1 50 000 x 1. 03054 = 56 384. 79279 = 56 384. 80 * Six months auto renewable r = 100 + 3. 10 100 = 103. 10100 = 1. 0310 T3 = 50 000 x 1. 03103-1 = 50 000 x 1. 03102 = 53 148. 05 = 53 148. 00 * Twelve months without withdrawal r = 100 + 3. 15100 = 103. 15100 = 1. 0325 T2 = 50 000 x 1. 03152-1 = 50 000 x 1. 03151 = 51 575. 00 BANK C * Monthly auto renewable r = 100 + 3. 00100 = 103. 00100 = 1. 0300 T13 = 50 000 x 1. 030013-1 = 50 000 x 1. 030012 = 71 288. 04434 = 71 288. 00 * Three months auto renewable r = 100 + 3. 05100 = 103. 05100 = 1. 0305 T5 = 50 000 x 1. 03055-1 = 50 000 x 1. 3054 = 56 384. 79279 = 56 384. 80 * Six months auto renewable r = 100 + 3. 10 100 = 103. 10100 = 1. 0310 T3 = 50 000 x 1. 03103-1 = 50 000 x 1. 03102 = 53 148. 05 = 53 148. 00 * Twelve months without withdrawal r = 100 + 3. 20100 = 103. 20100 = 1. 032 T2 = 50 000 x 1. 0322-1 = 50 000 x 1. 0321 = 51 6 00. 00 PERIOD| BANK A (RM)| BANK B (RM)| BANK C (RM)| MONTHLY RENEWABLE| 72 123. 00| 71 288. 00| 71 288. 00| THREE MONTHS RENEWABLE| 56 604. 00| 56 384. 80| 56 384. 80| SIX MONTHS RENEWABLE| 53 251. 20| 53 148. 00| 53 148. 00| TWELVE MONTHS RENEWABLE| 51 625. 00| 51 575. 00| 51 600. 0| Therefore, I will choose Bank A because the interest of Bank A is higher than Bank B and Bank C. PART B (a) The Cooperative of your school plans to provide photocopy service to the students of your school. A survey was conducted and it is found out that rental for a photo copy machine is RM 480 per month, cost for a rim of paper (500 pieces) is RM 10 and the price of a bottle of toner is RM 80 which can be used to photocopy 10 000 pieces of paper. (i) What is the cost to photocopy a piece of paper? Solution by Mathematical Solution Rental for photocopy machine/month = RM 480Cost for a rim of paper (500 pieces) = RM 10 Price of a bottle of toner (10 000 pieces) = RM 80 Cost for a photocopy of a piece o f paper = RM 80 + RM 480 + [10 000500 RM 10]10 000 = RM 0. 076 (ii) If your school cooperative can photocopy an average of 10 000 pieces per month and charges a price of 10 cent per piece, calculate the profit which can be obtained by the school cooperative. Solution by Mathematical Method Charge of a piece of photocopy of a paper = RM 0. 10 Cost for a photocopy of a piece of paper = RM 0. 076 Profit obtained = (RM 0. 10 – RM 0. 076)(10 000) = RM 240 b) For the year 2013, the cost for photocopying 10 000 pieces of paper increased due to the increase in the price of rental, toner and paper as shown in table below: (i) Calculate the percentage increase in photocopying a piece of paper based on the year 2012, using two different methods. Solution METHOD 1 by Mathematical Solution Cost of photocopy of a piece of paper in 2013 = RM 100 + RM 500 + RM24010 000 = RM 0. 084 Percentage increase = 0. 084 – 0. 0760. 076 x 100% = 10. 5263% METHOD 2 by Price Index Solution I = P1P0x 100 ? = IWW | Price Index, I| Weightage, W| Rental| 6256| 25| Toner| 125| 5| Paper| 120| 12| = 625625 + 1255 + 1201225 + 5 + 12 = 25015252 = 111. 17 Percentage increase = RM 0. 076 x 111. 17100 – 0. 0760. 076 x 100% = 10. 5263% (ii) If the school cooperative still charge the same amount for photocopying a piece of paper, how many pieces of paper should the cooperative photocopy in order to get the same amount of profit? Solution by Quadratic Equation Solution Pieces of paper should cooperative photocopy 0. 1(x) – 10 000 (0. 084) = 240 0. 1x – 840 = 240 x = 10800. 1 = 10 800 (iii) If the cooperative still maintain to photocopy the same amount of paper per month, how much profit can Cooperative obtain?Solution by Mathematical Solution Profit obtained = (RM 0. 10)(10 000) – (RM 0. 084)(10 000) = RM 160 PART C The population of the school is increasing. As a result, the school cooperative needs more space for keeping the increasing amount of stock. Therefore the school cooperative plans to expand the store-room. It is estimated that cost for renovation is RM 150 000. Make a conjecture on which is a better way for the school cooperative to pay, whether to pay the whole lump sum in cash or keep the RM 150 000 in a fixed deposit account at a rate of 6% p. a. n a bank then borrow the RM 150 000 from a bank and pay for the hire purchase for a period of 10 years with a interest rate of 4. 8% p. a. and withdraw monthly to pay for the hire purchase every beginning of a month. Make a conclusion and give your reason. (You can give your solution in table form, Excel or graph) Solution by Excel Month| Interest (%)| Total Money (RM)| Interest Rate/year (%)| Loan/month (RM)| Money Left (RM)| 1| 6. 00| 150 000| 4. 80| 1 850. 00| 251 571. 84| 2| | | | 1 850. 00| 249 721. 84| 3| | | | 1 850. 00| 247 871. 84| 4| | | | 1 850. 00| 246 021. 84| 5| | | | 1 850. 0| 244 171. 84| 6| | | | 1 850. 00| 242 321. 84| 7| | | | 1 850. 00| 240 471. 84| 8| | | | 1 850. 00| 238 621. 84| 9| | | | 1 850. 00| 236 771. 84| 10| | | | 1 850. 00| 234 921. 84| 11| | | | 1 850. 00| 233 071. 84| 12| | | | 1 850. 00| 231 221. 84| 13| 6. 00| 159 000. 00| 4. 80| 1 850. 00| 229 371. 84| 14| | | | 1 850. 00| 227 521. 84| 15| | | | 1 850. 00| 225 671. 84| 16| | | | 1 850. 00| 223 821. 84| 17| | | | 1 850. 00| 221 971. 84| 18| | | | 1 850. 00| 220 121. 84| 19| | | | 1 850. 00| 218 271. 84| 20| | | | 1 850. 00| 216 421. 84| 21| | | | 1 850. 00| 214 571. 84| 22| | | | 1 850. 0| 212 721. 84| 23| | | | 1 850. 00| 210 871. 84| 24| | | | 1 850. 00| 209 021. 84| 25| 6. 00| 168 540. 00| 4. 80| 1 850. 00| 207 171. 84| 26| | | | 1 850. 00| 205 321. 84| 27| | | | 1 850. 00| 203 471. 84| 28| | | | 1 850. 00| 201 621. 84| 29| | | | 1 850. 00| 199 771. 84| 30| | | | 1 850. 00| 197 921. 84| 31| | | | 1 850. 00| 196 071. 84| 32| | | | 1 850. 00| 194 221. 84| 33| | | | 1 850. 00| 192 371. 84| 34| | | | 1 850. 00| 190 521. 84| 35| | | | 1 850. 00| 188 671. 84| 36| | | | 1 850. 00| 186 821. 84| 37| 6. 00| 178 652. 40| 4. 80| 1 850. 00| 184 971. 84| 38| | | | 1 850. 00| 183 121. 4| 39| | | | 1 850. 00| 181 271. 84| 40| | | | 1 850. 00| 179 421. 84| 41| | | | 1 850. 00| 177 571. 84| 42| | | | 1 850. 00| 175 721. 84| 43| | | | 1 850. 00| 173 871. 84| 44| | | | 1 850. 00| 172 021. 84| 45| | | | 1 850. 00| 170 171. 84| 46| | | | 1 850. 00| 168 321. 84| 47| | | | 1 850. 00| 166 471. 84| 48| | | | 1 850. 00| 164 621. 84| 49| 6. 00| 189 371. 54| 4. 80| 1 850. 00| 162 771. 84| 50| | | | 1 850. 00| 160 921. 84| 51| | | | 1 850. 00| 159 071. 84| 52| | | | 1 850. 00| 157 221. 84| 53| | | | 1 850. 00| 155 371. 84| 54| | | | 1 850. 00| 153 521. 84| 55| | | | 1 850. 00| 151 671. 4| 56| | | | 1 850. 00| 149 821. 84| 57| | | | 1 850. 00| 147 971. 84| 58| | | | 1 850. 00| 146 121. 84| 59| | | | 1 850. 00| 144 271. 84| 60| | | | 1 850. 00| 142 421. 84| 61| 6. 00| 200 733. 84| 4. 80| 1 850. 00| 140 571. 84| 62| | | | 1 850. 00| 138 721. 84| 63| | | | 1 850. 00| 136 871. 84| 64| | | | 1 850. 00| 135 021. 84| 65| | | | 1 850. 00| 133 171. 84| 66| | | | 1 850. 00| 131 321. 84| 67| | | | 1 850. 00| 129 471. 84| 68| | | | 1 850. 00| 127 621. 84| 69| | | | 1 850. 00| 125 771. 84| 70| | | | 1 850. 00| 123 921. 84| 71| | | | 1 850. 00| 122 071. 84| 72| | | | 1 850. 00| 120 221. 4| 73| 6. 00| 212 777. 87| 4. 80| 1 850. 00| 118 371. 84| 74| | | | 1 850. 00| 116 521. 84| 75| | | | 1 850. 00| 114 671. 84| 76| | | | 1 850. 00| 112 821. 84| 77| | | | 1 850. 00| 110 971. 84| 78| | | | 1 850. 00| 109 121. 84| 79| | | | 1 850. 00| 107 271. 84| 80| | | | 1 850. 00| 105 421. 84| 81| | | | 1 850. 00| 103 571. 84| 81| | | | 1 850. 00| 101 721. 84| 83| | | | 1 850. 00| 99 871. 84| 84| | | | 1 850. 00| 98 021. 84| 85| 6. 00| 225 544. 54| 4. 80| 1 850. 00| 96 171. 84| 86| | | | 1 850. 00| 94 321. 84| 87| | | | 1 850. 00| 92 471. 84| 88| | | | 1 850. 00| 90 621. 84| 89| | | | 1 850. 0| 88 771. 84| 90| | | | 1 850. 00| 86 921. 84| 91| | | | 1 850. 00| 85 071. 84| 92| | | | 1 850. 00 | 83 221. 84| 93| | | | 1 850. 00| 81 371. 84| 94| | | | 1 850. 00| 79 521. 84| 95| | | | 1 850. 00| 77 671. 84| 96| | | | 1 850. 00| 75 821. 84| 97| 6. 00| 239 077. 21| 4. 80| 1 850. 00| 73 971. 84| 98| | | | 1 850. 00| 72 121. 84| 99| | | | 1 850. 00| 70 271. 84| 100| | | | 1 850. 00| 68 421. 84| 101| | | | 1 850. 00| 66 571. 84| 102| | | | 1 850. 00| 64 721. 84| 103| | | | 1 850. 00| 62 871. 84| 104| | | | 1 850. 00| 61 021. 84| 105| | | | 1 850. 00| 59 171. 84| 106| | | | 1 850. 0| 57 321. 84| 107| | | | 1 850. 00| 55 471. 84| 108| | | | 1 850. 00| 53 621. 84| 109| 6. 00| 253 421. 84| 4. 80| 1 850. 00| 51 771. 84| 110| | | | 1 850. 00| 49 921. 84| 111| | | | 1 850. 00| 48 071. 84| 112| | | | 1 850. 00| 46 221. 84| 113| | | | 1 850. 00| 44 371. 84| 114| | | | 1 850. 00| 42 521. 84| 115| | | | 1 850. 00| 40 671. 84| 116| | | | 1 850. 00| 38 821. 84| 117| | | | 1 850. 00| 36 971. 84| 118| | | | 1 850. 00| 35 121. 84| 119| | | | 1 850. 00| 33 271. 84| 120| | | | 1 850. 00| 31 421. 8 4| ? Money is still left after the loan has been paid-out for the period of 10 years.That mean, keeping the RM 150 000 in a fixed deposit account then borrow the RM 150 000 from a bank is better way to expand the store-room. PART D The cooperative of the school also has another amount of RM 50 000. The cooperative plans to keep the money in a bank. The bank offered a compound interest rate of 3. 5% per annum and a simple interest rate of 5% per annum. Explain the meaning of â€Å"compound interest† and â€Å"simple interest†. Suggest a better way of keeping the money in this bank. State a suitable period for keeping the money for each plan. Explain why. Solution y Dictionary (source: Oxford Advanced Learner’s Dictionary 6th Edition) Compound interest * Interest that is paid both on the original amount of money saved and on the interest that has been added to it. Simple interest * Interest that is paid only on the original amount of money that you invested, and n ot on any interest that is earned. Simple interest is suitable for savings in a short period. It is because of its interest is higher than compound interest and it is paid only on the original amount of money that you invested, and not on any interest that is earned.For example, when you keep RM50 000 with an interest of 5% for 2 years, then you will gain RM 5 000 after two years. So the total amount in the bank is RM 55 000 after two years. When one keeps RM 50 000 with the interest of 3. 5 % of compound interest for 2 years, then you will gain RM3 561. 25. So the total amount in the bank is RM 53 561. 25 after two years. Compound interest is suitable for savings in a long period. It is because of the original amount of money saved and on the interest that has been added to it. For example, RM50 000 for the plan of 3. 5 % of compound interest plan for 30 years then we will have RM 140 339. 9 in our saving account. But when one keeps RM 50 000 for the plan of 5 % of simple interest for 30 years, then we will only have RM 125 000 in our savings account. Therefore, it is better to save in the compound interest plan account for long-term savings and simple interest for short-term savings. FURTHER EXPLORATION When Ahmad was born, his parents invested an amount of RM 5 000 in the Amanah Saham Bumiputera (ASB) for him. The interest rate offered was 8. 0% p. a. At what age will Ahmad have a saving of RM 50 000, if he keeps the money without withdrawal? Solution by Geometric ProgressionTn = 50 000 r = 100 + 8. 0100 = 1. 08 a = 5 000 Tn = arn-1 Let, Tn > 50 000 5 000 (1. 08n-1) > 50 000 ? 1. 08n-1 > 10 log 1. 08n-1 > log 10 (n-1) log 1. 08 > log 10 n-1 > log10log1. 08 n-1 > 29. 92 n > 30. 92 The least value of n is 31, 31 – 1 = 30. by Excel Terms, Tn| Value of saves| Age of Ahmad| 1| 5000| 0| 2| 5400| 1| 3| 5832| 2| 4| 6298. 56| 3| 5| 6802. 4448| 4| 6| 7346. 640384| 5| 7| 7934. 371615| 6| 8| 8569. 121344| 7| 9| 9254. 651051| 8| 10| 9995. 023136| 9| 11| 10794. 62 499| 10| 12| 11658. 19499| 11| 13| 12590. 85058| 12| 14| 13598. 11863| 13| 15| 14685. 6812| 14| 16| 15860. 84557| 15| 17| 17129. 71322| 16| 18| 18500. 09027| 17| 19| 19980. 0975| 18| 20| 21578. 5053| 19| 21| 23304. 78572| 20| 22| 25169. 16858| 21| 23| 27182. 70206| 22| 24| 29357. 31823| 23| 25| 31705. 90369| 24| 26| 34242. 37598| 25| 27| 36981. 76606| 26| 28| 39940. 30734| 27| 29| 43135. 53193| 28| 30| 46586. 37449| 29| 31| 50313. 28445| 30| ? Ahmad will have a saving of RM 50 000 at the age of 30. CONCLUSION After doing research, answering the questions, plan a table and some problem solving, we saw that usage of index number is important in our daily business activity.It is not just widely use in the business segment but also in banking skills. We learnt a lot of lesson from this Additional Mathematics Project Work such as banking account skills, loaning technique, counting the cost of a product, predict the future plans of money and so on. Without this, shopkeeper will get a lot of loses in the business activity. We would like to thanks the one who contribute the idea of index number to help us a lot in our business activity together in our daily life. REFLECTIONAfter by spending countless hours, days and night to finish this project in this few weeks, there are several things that I want to say†¦ Additional Mathematics, The killer subject, But when I study hard, It was so easy to understand†¦ Additional Mathematics, You look so interest, So unique from the other subject, That’s why I like you so much†¦ After sacrificing my precious time, Spirit and energy for this project, And now, I realized something important from it! I really love Additional Mathematics, Additional Mathematics, You are my real friend, You are my family, And you are my life†¦ I LOVE ADDITIONAL MATHEMATICS!! ~ THE END ~

Hepatitis essays

Hepatitis essays Hepatitis is caused by a virus that is targeted at the liver, one of your most important organs!! Specifically, it causes inflammation and injury to the liver. Hepatitis comes in many different forms, five to be exact. There is Hepatitis A, B, C, D Hepatitis A is also very common in developing nations. Outbreaks occur due to unsanitary conditions such as contamination of the food and water supply. The Liver: The liver is an organ which is located upper right part of your abdomen. It has one main function. This function is to clean out your blood. How this happens is from your inferior venacava, there is a group if veins called the mesenteric veins. They branch off and take dirty blood to your liver to be cleaned. Now, when the virus moves in and stops the liver from doing its job, just imagine all the toxins and unwanted waste and chemicals that build up in your body.!! Causes: Hepatitis A is transmitted almost always by the fecal oral route. It is spread by close personal contact with fecally contaminated water supplies, fruits and vegetables. Poor personal hygiene promotes spread of the virus as well which is why the incidence of Hepatitis is higher in developing nations, where poor sanitary conditions exist. It can also be transmitted by raw or partially cooked clams from contaminated water. Properties of the virus: The hepatitis A virus is a non - enveloped 27 nano meters in size, virus. It is characterized as a RNA based virus. Inactivation of viral activity can be achieved by heating to 100 C fo ...

Rehabilitation Of Autistic Children Children And Young People Essay Essay Example

Rehabilitation Of Autistic Children Children And Young People Essay Essay Example Rehabilitation Of Autistic Children Children And Young People Essay Essay Rehabilitation Of Autistic Children Children And Young People Essay Essay a qualified Particular Educator with 6+ old ages of experience in the field. Soon the Centre has 55 pupils trained by 10 qualified particular instruction and rehabilitation professionals and 6 teacher-aides, 2 voluntary professionals, 2 teacher-aides, 3 health professionals, 6 educational voluntaries, and 2 attenders. The Centre besides provides practical preparation to Teacher-trainees of the Particular Education plan on Autism, conducted by KPAMRC, Bangalore [ 12 ] . The assorted activities carried out by Apoorva Centre for Autism are as follows: It caters to the educational wing utilizing rules of ABA and TEACCH. The age group benefited is 3 old ages to 18yrs. Children with ASD of 15 old ages and above are imparted pre-vocational preparation and steps are taken to place the suited careers for them. Post the vocational preparation the pupils are suggested available sheltered workshops that enrol them. Others who prefer organic agriculture preparation are sent to the yoga instructor s farm for 2 twelvemonth preparation. Post the 2years, based on their public presentation they would either be suggested extra preparation or apprenticeship and lasting employment thenceforth with the neurotypical grownup husbandmans in an inclusive work atmosphere. The tools used for communications are PECS ( Picture Exchange Communication System ) . Drama and Yoga therapy are a portion of the course of study excessively. Some of the parents have besides opted for the bio-medical intercession and some have discontinued it due to assorted grounds. The Centre besides caters to pupils who are badly affected by autism with other co-morbidities including intellectual paralysis, profound mental deceleration and ictus upsets. These kids are given developing in ego attention and assist them, maintain their day-to-day life accomplishments. A twosome of kids who have been asked to travel out from the regular schools due to terrible behavioral issues are being trained towards the National Open School system ( NIOS ) with regular school course of study and text books. All these plans happen across the 3 premises which are located in JP Nagar, Jayanagar and near Bannerghatta National Park. Each premiss caters to specific demands but they all meet one time in 6 months. All the installations are twenty-four hours attention Centres. The Pull offing Trust is taking towards a reprieve attention and a residential place or a community populating maintaining in head the state of affairs that would originate when the parents and health professionals are no longer present. The function of Mrs. Nithya S. is to assist program activities and educational/vocational plans for the kids and develop the pedagogues and health professionals. Apoorva Centre for Autism Lions Club of Sarakki Premises, 21st chief, 1st Cross, Marenahalli, JP Nagar 2nd Phase, Bangalore-78 Telephone: 08065710445 Electronic mail: apoorva @ SAIautismcenter.org The LOTUS Foundation Activities that are used in the rehabilitation of autistic kids include supplication, external respiration and speculation, motion therapy, music therapy, kitchen nine, occupational therapy, art and picture therapy, H2O therapy, drama therapy, societal therapy, communicating therapy and nature nine. Each therapy has its topographic point, clip and agenda in the twenty-four hours. Each is designed for every particular kid to mend specific challenges faced. As in any other thing, attending has to be paid to the measure and the quality of the therapy delivered. If under done or over done the same therapy could be counterproductive. The societal challenges faced by autistic kids are: The kid goes through immense accommodation challenges in his/her organic structure, thought procedures and emotions. It is hard for the kid, every bit good as his/her health professionals to suit into the model that society provides. The community and committed professionals need to widen themselves to back up the kid and his immediate household. Simultaneously work has to be done to change the current model to ease integrating of these persons into society. These kids have trouble with communicating and are easy led to defeats and aggressions that form a barrier to them being included. Opening out the communicating lines, ask foring more and more people to understand them and learning them self-regulation in pull offing their emotions and open behavior will travel a long manner to assist incorporate these kids. Educating the people in his environment suitably along with developing the kid to pass on efficaciously will organize the anchor of get the better ofing this trouble. The physical-sensorial demands of our kids do them to expose upseting obvious behaviors such as rocking, walking, whirling and shouting that can frighten away others and drive the kids with autism to remain off from the mainstream. Giving appropriate sensory inputs and at the same time turn toing diet, rhythm and sleep will greatly cut down the emphasis and ease the kid in go oning to take part in society. Queerly, the equals and friends are really tolerant and understanding, but the grownups instructors and parents have trouble in admiting and accepting the autistic in mainstream environment. The media s duty is in taking the facts and showing it to the common adult male in a manner that he will understand. Our petition is non to dramatise and do these as tragic narratives. The other side of the coin is that we do hold tolerant and sensitive people who welcome such kids. Whatever said and done, it is difficult to stay impersonal when faced with such a deep inquiry posed by our kids through their sheer presence. We observed that diagnosing of people in the Autism Spectrum Disorder has increased. 1 in 88 kids born today are diagnosed to be on the spectrum from really mild to extremely complicated. In the kingdom of inclusion , we provide services to efficaciously include the persons with particular demands in the chief watercourse regular school environment. We train and organise workshops for regular school instructors and helpers who are involved in twenty-four hours to twenty-four hours classroom direction of persons with particular demands in inclusive scenes. The Lotus Foundation C22, Palm grove Flats, 9th Cross Street, Besant Nagar 600 090 Telephone: +91 44 24919802 Electronic mail: A nandini @ lotusfoundation.in V-Excel Educational Trust Help the kids become more comfy with their organic structures, overcome sensory issues to an extent that they are able to concentrate in category, travel out with teachers/parents, be happy and content at place. With this slowly emerging, the kids learn to show, talk and their will, to larn lessons and work at activities. This is done by: Medical Work: A Following the biomedical diet ( gluten free, casein free ) and a rigorous beat ( guaranting repasts are eaten at the right clip and kids get adequate slumber ) Course of study: A Following the Rudolf Steiner s doctrine, on taking attention of kids with particular demands. Knowing what lessons, motions, vocals, colorss, or work is to be introduced to kids ( woodworking, cookery, building, agriculture, basket devising, gold braid, and sewing ) at a peculiar age. In supplying the right input at the right age, the interior force of the kid is strengthened. The gait depends upon the group of kids, and the instructor goes as fast or every bit slow as the kids require. Lots of infinite is given for the kids to reflect, express, experience each portion of their twenty-four hours. A batch of freedom is given to the kids, but boundaries are really clear and house, so the kids feel safe. Bing Supported: A As it requires a batch from instructors and kids to work with kids with particular demands, aid is ever needed. Teachers and parents work together in seeking to understand and back up the kid. Teachers and parents are supported by the Healing Departments External Therapy and Counselling, so that they are looked after, and strengthened plenty to honor their committedness. The Doctrine: A The school tallies, such that the kid is at the Centre and everyone works together, understands each other, and learns to back up each other so that the kid may mend. Besides, in each human being there lies something that needs healing/understanding/attention. In turn toing this, the whole community coming together around the kid gets healed. With every inquiry that the kid airss, we look deep in ourselves for the reply. Not so much to state, How can I repair this job? but more on the lines of Why is this job coming up? , Why is it coming to me? , Where is it coming from? , How am I making this job? , Is at that place something in me that must alter? In making this you become more witting, as a human being, and more interested in other human existences. Relationship and people become an of import portion of your work.A Age Appropriateness: A We have learnt that largely in footings of their intelligence, the kids are age appropriate. However, when it comes to reading, composing, working making something with their custodies, they lag behind a few old ages. So kids in Grade Five still write at Kindergarten Level, but the course of study finds a manner to equilibrate that. They are treated their age, but the outlooks from them change harmonizing to how much their organic structure can follow. This is non a physical disablement but more a affair of involvement and will to pattern. Their weak countries are worked on slowly and given clip a batch of accent on motion and working with the custodies, pess and organic structure. The procedure is non a speedy hole or an immediate solution. It takes clip, forbearance and requires finding and difficult work to maintain working even if you keep neglecting. Social Challenges: The biggest societal challenge is acceptance. The kids are non understood, so the kids are non accepted. And non-acceptance causes a batch of hurting for the kids and people assisting the kids. The other societal challenges are covering with the computing machine age computing machines, music systems, etc. do a break in the comfort degree of all human existences, but particularly kids with autism as they are really sensitive. Electromagnetic moving ridges from electronic media do non assist in mending the kids. Statisticss: The school serves 75 kids out of which 40 45 are kids with autism. At Kindergarten and Grade Four the kids are kept longer than a twelvemonth as they are important phases of alteration and growing for the kid which require more sensitiveness, more work, and more clip. Now, there are kids from Kindergarten to Grade Five, and besides a Pre Vocational Section ( 75 kids ) . They have an early intercession plan. The donees of this undertaking are kids who have already developed, or at hazard of developing, either a handicapping status or some other particular demand that may impact their overall development. This includes kids with Autism, Mental Retardation, Attention Deficit Disorders, Delayed Milestones, and Learning Disabilities like Dyslexia etc. They basically work on clip edge plans geared towards early societal inclusion of kids. This is attempted through one-on-one remedial intercession, centripetal integrating therapy, and a well-planned sensory diet. They have had sensible success with instances of: Behavioral Regulatory Problems Arousal, attending, affect, fond regard, temper, ordinance of slumber and feeding. Musculo Skeletal Impairments Deformities, strength, endurance Neuro-Muscular Impairments Tone, coordination, gross and all right control, motor planning, balance Centripetal Processing Difficulties Tactile, vestibular, ocular, audile, olfactive Functional Impairments Eating, mobility, self attention, occupational Cognitive Impairments Attachment, interaction, communicating, ocular perceptual experience, memory, sequencing, safety consciousness, executive map Self-help accomplishments Eating, dressing, preparing, composing, societal accomplishments and countries of day-to-day life V-Excel Center for Research and Rehabilitation ( In association with Esvi Sarada Foundation ) 50 Sreyes, M.G. Road, Shastri Nagar, Chennai 600 041 Telephone: 91-44-24522061/24521986 Electronic mail: info @ v-excel.org Shristi Special Academy Shristi Special Academy is a registered charitable organisation dedicated to the authorization of intellectually and physically deprived persons. It was founded in 1995 by Suchita Somashekaraiah, Sharon Watts and Meena Jain. A multidisciplinary squad of specializers are employed to carry on intercession programmes and to advance independency and autonomy amongst those with a scope of disablements. The autism unit focuses on the appraisal and intercessions of local kids diagnosed with Autistic Spectrum Disorders and presently reach over 30 childs. The course of study includes academic instructions, societal accomplishments work and vocational preparation. The Academy has a dedicated squad who work with people from all ages, from babies to grownups. Shristi Special Academy 13/1, 9th G Main, Byraveshwarnagar, Moodalapalya, Bangalore 560072 Telephone: +91 ( 0 ) 80 2318 0318, +91 ( 0 ) 80 2318 0186 Action for Autism Action For Autism was started in 1991 to supply support services to autistic persons and their households in India, so that people with autism are able to turn to their full potency. They provide support and services to individuals with autism and work through direct services, protagonism and research in order to better lives of autistic kids and their households. Action For Autism besides assists other states in South Asia to accomplish legal acknowledgment of autism and develop services for kids and households. They offer clinical services and intercession plans, and besides have assorted active divisions for preparations, publications, research and protagonism. Action For Autism is involved in assorted intercession plans such as: Parent kid early intercession plans The unfastened door twenty-four hours school Adhaar vocational Centre On-the-job preparation programme for work behaviors Educational intercession programme The bubble category: Social accomplishments developing plan Handwriting programme Inclusive avocation categories Occupational and Sensory intercession They besides have different appraisal programmes such as: Diagnostic Appraisals Functional Assess Occupational and Sensory Appraisals AFA offers an eclectic mix of behavior based methods and structured instruction. Elementss of TEACCH, Applied behavior Analysis ( ABA ) , Verbal Behaviour Analysis ( VBA ) , assorted signifiers of Assisted and Augmentative Communication ( AAC ) including Picture Exchange Communication Systems ( PECS ) are a portion of the methods used [ 14 ] . Action for Autism Pocket 7 A ; 8, JasolaVihar, New Delhi 110025 Telephone: 91-11-65347422, 91-11-40540991, 91-11-40540992 E mail: actionforautism @ gmail.com Decision The current survey of rehabilitative techniques has shown that the rate at which the thoughts such as SCERTS, DIR and TEACCH are deriving popularity is really high. Many foundations in India are efficaciously utilizing these techniques, possibly with some alterations of their ain ; to successfully rehabilitate their wards and to assist them go active in their societal and emotional care. The addition in figure of foundations besides show the increased consciousness about upsets such as autism, which were one time extremely stigmatised. These foundations besides play a critical function in assisting these kids get accepted into the mainstream. This is conclusive that India is fast nearing the phase where autistic kids can be successfully rehabilitated and included into mainstream society.

Could Alice Carter have done anything differently here Why or why not Term Paper

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Concepts Essay Example | Topics and Well Written Essays - 1000 words

Concepts - Essay Example According to Office of Government Commerce (2002), Collaboration is the process of sharing tacit knowledge among members in a group they work together in order to accomplish stated goals and objectives (p.95). Collaboration follows strong desire of achieving a particular set of goals. Involving the relevant stakeholders in business and receiving their interests, accepting opinions and running business considering all of their interests have been considered to be the basic activity in the successful organizational culture. Time Warner Company is a good example for collaboration that helped them work across the boundaries. David Straus (2002) finds this concept as fundamental in the success of his business experience. According to him, the power of collaboration comes from inclusion, not exclusion. His experiences of facilitating collaboration taught him the fundamental principle as involving the relevant stakeholders (p. 39). Shared Mindset represents the extent to which employees within an organization have a common focus or agenda. Shared Mindset helps employees to have commitment to how to work together to achieve goals and employer to set an agenda and to ensure that it translates to employee behavior (RS Schuler, 2007, p. 132). Shared Mindset is a broad concept in the way that mindset needs to be shared both inside and outside the organization. It can be applied in both micro and macro levels. According to David Ulrich (1997), a fully shared mindset occurs when employees inside and customers or suppliers outside the organization embrace similar automatic thought about the process and structure of the organization (p. 171). Shared mindset leads to increased business performance because employees are focused. Shared Mindset concept In order to apply shared mindset effectively, managers need to focus on informational and behavioral patterns. Harley Davidson is an illuminating example for

Critical Analysis of the Research Designs in a Peer- Reviewed Article Essay

Critical Analysis of the Research Designs in a Peer- Reviewed Article - Essay Example It is an organized investigation into a subject in order to discover facts, to establish or revise theory, or to develop an action based on facts discovered (Encarta Dictionary, 2002, par. 1). The article entitled â€Å"Identifying the best research design to fit the question. Part 2: qualitative designs† written by Jenny Ploeg (1999) exemplifies research using the qualitative method identified to be crucial in providing answers to relevant nursing concerns. The article was chosen to be the appropriate example of a peer-reviewed discourse which explains a research design, specifically the qualitative method, as a means of furthering trends on nursing applications, a significant area of health science. The main problem statement or hypothesis of the discourse was stated as proffering the value of qualitative research in pinpointing crucial solutions to nursing concerns. Ploeg (1999) averred that â€Å"qualitative research methods have become increasingly important as ways of developing nursing knowledge for evidence-based nursing practice. This editorial provides an overview of qualitative research, describes 3 common types of qualitative research, and gives examples of their use in nursing† (par. 1). The article provided readers with the opportunity to be enlightened on the significance of the qualitative method as the research design most appropriate in seeking solutions to nursing dilemmas. By expounding on the common types of qualitative research (phenomenology, ethnography, and grounded theory), one is able to appreciate the kind of information provided by these types of research with the objective of understanding the process towards arriving at a particular result or outcome. Likewise, awareness of the differentiating factors or elements of each research type would enable practitioners to use the accurate kind of qualitative research for the identified purpose. Ploeg (1999) described the qualitative

Six Stroke Ic Engine Essay Example for Free

Six Stroke Ic Engine Essay 1. INTRODUCTION A diesel engine is an internal combustion engine that uses the heat of compression to initiate ignition to burn the fuel, which is injected into the combustion chamber during the final stage of compression. Diesel engines have wide range of utilization for automobiles, locomotives marines and co-generation systems. However, large problem is still related to undesirable emission. The six-stroke engine is a type of internal combustion engine based on the four-stroke engine but with additional complexity to make it more efficient and reduce emissions. Two different types of six-stroke engine have been developed: In the first approach, the engine captures the heat lost from the four-stroke Otto cycle or Diesel cycle and uses it to power an additional power and exhaust stroke of the piston in the same cylinder. Designs use either steam or air as the working fluid for the additional power stroke. The pistons in this type of six-stroke engine go up and down three times for each injection of fuel. There are two power strokes: one with fuel, the other with steam or air. The currently notable designs in this class are the Crower Six-stroke engine invented by Bruce Crower of the U.S. ; the Bajulaz engine by the Bajulaz S.A. company of Switzerland; and the Velozeta Six-stroke engine built by the College of Engineering, at Trivandrum in India. The second approach to the six-stroke engine uses a second opposed piston in each cylinder that moves at half the cyclical rate of the main piston, thus giving six piston movements per cycle. Functionally, the second piston replaces the valve mechanism of a conventional engine but also increases the compression ratio. The currently notable designs in this class include two designs developed independently: the Beare Head engine, invented by Australian Malcolm Beare, and the German Charge pump, invented by Helmut Kottmann. To improve exhaust emissions from diesel engines, a new concept of Six Stroke Engine has been proposed. This engine has a second compression and combustion processes before exhaust process. [pic] Fig 1 Diesel engine sectional view Fig 2 Ideal Otto cycle [pic] Fig 3 Pressure- Volume diagrams for dual cycle As the fuel in one cycle was divided into two combustion processes and the EGR (Exhaust Gas Recirculation) effect appeared in the second combustion process, the decreased maximum cylinder temperature reduced Nitrous Oxide (NO) concentration in the exhaust gas. It was further confirmed that soot formed in the first combustion process was oxidized in the second combustion process .Therefore, a six stroke diesel engine has significant possibilities to improve combustion process because of its more controllable factors relative to a conventional four-stroke engine. Since the cylinder temperature before the second combustion process is high because of an increased temperature in the first combustion process, ignition delay in the second combustion process should be shortened. In addition, typically less desirable low cetane number fuels might also be suitable for use in the second combustion process, because the long ignition delays of these fuels might be improved by increased cylinder temperatures from the first combustion process. Methanol was chosen as the fuel of the second combustion. The cetane number of methanol is low and it shows low ignitability. However, since methanol will form an oxidizing radical (OH) during combustion, it has the potential to reduce the soot produced in the first combustion process. [pic] Fig 4 Comparison of 4 stroke and 6 stroke cycle 2. BAJULAZ SIX STROKE ENGINE The majority of the actual internal combustion engines, operating on different cycles have one common feature, combustion occurring in the cylinder after each compression, resulting in gas expansion that acts directly on the piston (work) and limited to 180 degrees of crankshaft angle. According to its mechanical design, the six-stroke engine with external and internal combustion and double flow is similar to the actual internal reciprocating combustion engine. However, it differentiates itself entirely, due to its thermodynamic cycle and a modified cylinder head with two supplementary chambers: Combustion, does not occur within the cylinder within the cylinder but in the supplementary combustion chamber, does not act immediately on the piston, and it’s duration is independent from the 180 degrees of crankshaft rotation that occurs during the expansion of the combustion gases (work). The combustion chamber is totally enclosed within the air-heating chamber. By heat exchange through the glowing combustion chamber walls, air pressure in the heating chamber increases and generate power for an a supplementary work stroke. Several advantages result from this, one very important being the increase in thermal efficiency. IN the contemporary internal combustion engine, the necessary cooling of the combustion chamber walls generates important calorific losses. 2.1 Analysis: Six-stroke engine is mainly due to the radical hybridization of two- and four-stroke technology. The six-stroke engine is supplemented with two chambers, which allow parallel function and results a full eight-event cycle: two four-event-each cycles, an external combustion cycle and an internal combustion cycle. In the internal combustion there is direct contact between air and the working fluid, whereas there is no direct contact between air and the working fluid in the external combustion process. Those events that affect the motion of the crankshaft are called dynamic events and those, which do not effect are called static events. [pic] Fig 5 Prototype of Six stroke engine internal view 1. Intake valve, 2.Heating chamber valve, 3.Combustion chamber valve,4. Exhaust valve, 5.Cylinder, 6.Combustion chamber, 7. Air heating chamber, 8.Wall of combustion chamber, 9.Fuel injector and 10.Heater plug. 2.1.1 Analysis of events [pic] Fig 6 Event 1: Pure air intake in the cylinder (dynamic event) 1. Intake valve. 2. Heating chamber valve 3. Combustion chamber valve. 4. Exhaust valve 5. Cylinder 6. Combustion chamber. 7. Air heating chamber. 8. Wall of combustion chamber. 9. Fuel injector. 10. Heater plug. [pic] Fig 7 Event 2: Pure air compression in the heating chamber. Event 3: Keeping pure air pressure in closed chamber where a maximum heat exchange occurs with the combustion chambers walls, without direct action on the crankshaft (static event). [pic] Fig 8 Event 4: Expansion of the Super heat air in the cylinder work (dynamic Event). [pic] Fig 9 Event 5: Re-compressions of pure heated air in the combustion chamber (dynamic event). Events 6: fuel injection and combustion in closed combustion chamber, without direct action on the crankshaft (static event). [pic] Fig 10 Events 7: Combustion gases expanding in the cylinder, work (dynamic event). [pic] Fig 11 Events 8: Combustion gases exhaust (dynamic event). [pic] Fig 12 Six-stroke engine cycle diagram: 2.1.2 External combustion cycle: (divided in 4 events): No direct contact between the air and the heating source. e1. (Event 1) Pure air intake in the cylinder (dynamic event). e2. (Event 2) Compression of pure air in the heating chamber (dynamic event). e3. (Event 3) Keeping pure air pressure in closed chamber where a maximum heat exchange occurs with the combustion chambers walls, without direct action on the crankshaft (static event). e4. (Event 4) Expansion of the super heated air in the cylinder, work (dynamic event). 2.1.3 Internal combustion cycle: (divided in 4 events) Direct contact between the air and the heating source. I1. (Event 5) Re-compression of pure heated air in the combustion chamber (dynamic event) I2. (Event 6) Fuel injection and combustion in closed combustion chamber, without direct action on the crankshaft (static event). I3. (Event 7) Combustion gases expanding in the cylinder, work (dynamic event). I4. (Event 8) Combustion gases exhaust (dynamic event). 2.2 Constructional details: The sketches shows the cylinder head equipped with both chambers and four valves of which two are conventional (intake and exhaust). The two others are made of heavy-duty heat-resisting material. During the combustion and the air heating processes, the valves could open under the pressure within the chambers. To avoid this, a piston is installed on both valve shafts which compensate this pressure. Being a six-stroke cycle, the camshaft speed in one third of the crankshaft speed. The combustion chambers walls are glowing when the engine is running. Their small thickness allows heat exchange with the air-heating chamber, which is surrounding the combustion chamber. The air-heating chamber is isolated from the cylinder head to reduce thermal loss. Through heat transfer from the combustion chamber to the heating chamber, the work is distributed over two strokes, which results in less pressure on the piston and greater smoothness of operation. In addition, since the combustion chamber is isolated from the cylinder by its valves, the moving parts, especially the piston, are not subject to any excessive stress from the very high temperatures and pressures. They are also protected from explosive combustion or auto-ignition, which are observed on ignition of the air-fuel mixture in conventional gas or diesel engines. The combustion and air-heating chambers have different compression ratio. The compression ratio is high for the heating chamber, which operates on an external cycle and is supplied solely with pure air. On the other hand, the compression ratio is low for the combustion chamber because of effectively increased volume, which operates on internal combustion cycle. The combustion of all injected fuel is insured, first, by the supply of preheated pure air in the combustion chamber, then, by the glowing walls of the chamber, which acts as multiple spark plugs. In order to facilitate cold  starts, the combustion chamber is fitted with a heater plug (glow plug). In contrast to a diesel engine, which requires a heavy construction, this multi-fuel engine, which can also use diesel fuel, may be built in a much lighter fashion than that of a gas engine, especially in the case of all moving parts. Injection and combustion take place in the closed combustion chamber, therefore at a constant volume, over 360 degrees of crankshaft angle. This feature gives plenty of time for the fuel to burn ideally, and releases every potential calorie (first contribution to pollution reduction). The injection may be split up, with dual fuel using the SNDF system (Single Nozzle, Dual Fuel). The glowing walls of the combustion chamber will calcite the residues, which are deposited there during fuel combustion (second contribution to pollution reduction). As well as regulating the intake and exhaust strokes, the valves of the heating and the combustion chambers allow significantly additional adjustments for improving efficiency and reducing noise. 2.3 Factors Contributing To the Increased Thermal Efficiency, Reduced Fuel Consumption, and Pollutant Emission 1. The heat that is evacuated during the cooling of a conventional engine’s cylinder head is recovered in six-stroke engine by air-heating chamber surrounding the combustion chamber. 2. After intake, air is compressed in the heating chamber and heated through 720 degrees of crankshaft angle, 360 degrees of which in closed chamber (external combustion). 3. The transfer of heat from thin walls of the combustion chamber to the air heating chambers lowers the temperature, pressure of gases on expansion and exhaust (internal combustion). 4. Better combustion and expansion of gases that take place over 540 degrees of crankshaft rotation, 360 ° of which is in closed combustion chamber, and 180 ° for expansion. 5. Elimination of the exhaust gases crossing with fresh air on intake. In the six stroke-engines, intake takes place on the first stroke and exhaust on the fourth stroke. 6. Large reduction in cooling power. The water pump and fan outputs are reduced. Possibility to suppress the water cooler. 7. Less inertia due  to the lightness of the moving parts. 8. Better filling of the cylinders on the intake due to the lower temperature of the cylinder walls and the piston head. 9. The glowing combustion chamber allows the finest burning of any fuel and calcinate the residues. 10. Distribution of the work: two expansions (power strokes) over six strokes, or a third more than the in a four-stroke engine. Since the six-stroke engine has a third less intake and exhaust than a four stroke engine, the depression on the piston during intake and the back pressure during exhaust are reduced by a third. The gain in efficiency balances out the losses due to the passage of air through the combustion chamber and heating chamber valves, during compression of fresh and superheated air. Recovered in the six-stroke engine By the air-heating chamber surrounding the combustion. Friction losses, theoretically high er in the six-stroke engine, are balanced by a better distribution of pressure on the moving parts due to the work being spread over two strokes and the elimination of the direct combustion. 3. DUAL FUEL SIX STROKE ENGINE 3.1 Working The cycle of this engine consists of six strokes: 1. Intake stroke 2. First compression stroke 3. First combustion stroke 4. Second compression stroke 5. Second combustion stroke 6. Exhaust stroke [pic] Fig 13 Concept of a Six-stroke diesel engine 3.1.1 Intake or Suction stroke To start with the piston is at or very near to the T.D.C., the inlet valve is open and the exhaust valve is closed. A rotation is given to the crank by the energy from a flywheel or by a starter motor when the engine is  just being started. As the piston moves from top to bottom dead centre the rarefaction is formed inside the cylinder i.e. the pressure in the cylinder is reduced to a value below atmospheric pressure. The pressure difference causes the fresh air to rush in and fill the space vacated by the piston. The admission of air continues until the inlet valve closes at B.D.C. 3.1.2 First Compression stroke Both the valves are closed and the piston moves from bottom to top dead centre. The air is compressed up to compression ratio that depends upon type of engine. For diesel engines the compression ratio is 12-18 and pressure and temperature towards the end of compression are 35-40 kgf/cm2 and 600-700 0C 3.1.3 First combustion stroke This stroke includes combustion of first fuel (most probably diesel) and expansion of product of combustion. The combustion of the charge commences when the piston approaches T.D.C. Here the fuel in the form of fine spray is injected in the combustion space. The atomization of the fuel is accomplished by air supplied. The air entering the cylinder with fuel is so regulated that the pressure theoretically remains constant during burning process. In airless injection process, the fuel in finely atomized form is injected in combustion chamber. When fuel vapors raises to self ignition temperature, the combustion of accumulated oil commences and there is sudden rise in pressure at approximately constant volume. The combustion of fresh fuel injected into the cylinder continues and this ignition is due to high temperature developed in engine cylinder. However this latter combustion occurs at approximately constant pressure. Due to expansion of gases piston moves downwards. The reciprocating motion of piston is converted into rotary motion of crankshaft by connecting  rod and crank. During expansion the pressure drop is due to increase in volume of gases and absorption of heat by cylinder walls. 3.1.4 Second compression stroke Both the valves are closed and the piston moves from bottom to top dead centre. The combustion products from the first compression stroke are recompressed and utilized in the second combustion process before the exhaust stroke. In typical diesel engine combustion the combustion products still contains some oxygen. 3.1.5 Second combustion stroke This stroke includes combustion of second fuel having low cetane (Cetane number of fuel is defined as percent volume of cetane (C16H34) in a mixture of cetane and alpha-methyl-naphthalene that produces the same delay period or ignition lag as the fuel being tested under same operating conditions on same engine). The combustion of the charge commences when the piston approaches to TDC. The second fuel injected into recompressed burnt gas can be burnt in the second combustion process. In other words combustion process of the second fuel takes place in an internal full EGR (Exhaust Gas Recirculation) of the first combustion. This second combustion process was the special feature of the proposed Six Stroke DI Diesel Engine. 3.1.6 Exhaust stroke The exhaust valve begins to open when the power stroke is about to complete. A pressure of 4-5 kgf/cm2 at this instant forces about 60% of burnt gases into the exhaust manifold at high speed. Much of the noise associated with automobile engine is due to high exhaust velocity. The remainder of burnt gases is cleared of the swept volume when the piston moves from TDC to BDC. During this stroke pressure inside the cylinder is slightly above the atmospheric value. Some of the burnt gases are however  left in the clearance space. The exhaust valve closes shortly after TDC. The inlet valve opens slightly before the end of exhaust stroke and cylinder is ready to receive the fresh air for new cycle. Since from the beginning of the intake stroke the piston has made six strokes through the cylinder (Three up And Three down). In the same period crank shaft has made three revolutions. Thus for six stroke cycle engine there are two power strokes for every three revolutions of crank shaft. 3.2 Performance analysis 3.2.1 Modification over four stroke diesel engine This six-stroke diesel engine was made from a conventional four-stroke diesel engine with some modification. A sub-shaft was added to the engine, in order to drive a camshaft and injection pumps. The rotation speed of the sub-shaft was reduced to 1/3 of the rotation of an output shaft. To obtain similar valve timings between a four-stroke and a six-stroke diesel engine, the cam profile of the six-stroke diesel engine was modified. In order to separate the fuels, to control each of the injection timings and to control each injection flow rate in the first and the second combustion processes, the six-stroke diesel engine was equipped with two injection pumps and two injection nozzles. The injection pumps were of the same type as is used in the four-stroke diesel engine. The nozzle is located near the center of a piston cavity, and has four injection holes. For the six-stroke diesel engine, one extra nozzle was added on the cylinder head. This extra nozzle was of the same design as that of the four-stroke engine. [pic] Fig 14 Volume –Angle diagram for six stroke engine Diesel fuel for the first combustion process was injected through this extra nozzle, and methanol for the second combustion process was injected through the center nozzle. Here, we denoted the injection timing of the four  stroke diesel engine as Xi. The injection timings of the first and second combustion strokes for the six-stroke diesel engine are shown as Xi I and Xi II, respectively. Crank angle X was measured from the intake BDC. In the six-stroke engine, crank angle of the first combustion TDC is 180 degrees. The second combustion TDC is 540 degrees. Specifications of the test engines are shown in Table 1. The conventional four-stroke diesel engine that was chosen as the basis for these experiments was a single cylinder, air cooled engine with 82 mm bore and 78 mm stroke. The six-stroke engine has the same engine specifications except for the valve timings. However, the volumetric efficiency of the six-stroke engine showed no significant difference from that of the four-stroke engine. Characteristics of the six-stroke diesel engine were compared with the conventional four-stroke diesel engine. In this paper, the engine speed (Ne) was fixed at 2,000 rpm. Cylinder and line pressure indicators were equipped on the cylinder head. NO concentration was measured by a chemiluminescence’s NO meter, and soot emission was measured by a Bosch smoke meter. The physical and combustion properties of diesel fuel and methanol are shown in Table. 2. Since combustion heats of diesel fuel and methanol are different, injection flow rates of the first and the second combustion processes are defined by the amount of combustion heat. Here, the supplied combustion heat for the first combustion process is denoted by QI. The second combustion stroke is denoted by QII. The ratio of QII to Qt (Qt = QI+QII) supplied combustion heat per cycle) is defined as the heat allocation ratio ÃŽ ±H: ÃŽ ±H = QII = QII QI +QII Qt Table 1. Specifications of the test engine: Four stoke Six stroke Diesel Engine Diesel Engine Engine type DI, Single cylinder, Air cooled, OHV Bore x Stroke [mm] 82 x 78 Displacement [cc] 412 Top Clearance [mm] 0.9 Cavity Volume [cc] 16 Compression ratio 21 Intake Valve Open100 BTDC70 BTDC Intake valve Close1400 BTDC1450 BTDC Exhaust Valve Open1350 ATDC1400 ATDC Exhaust Valve Close120 ATDC30 ATDC Valve Overlap 220 100 Rated power 5.9 kW /3000rpm Base Engine - Table 2. Physical and combustion properties of diesel fuel and methanol: | |Diesel Fuel |Methanol | |Combustion heat [MJ/kg] |42.7 |19.9 | |Cetane number |40-55 |3.0 | |Density [kg/m2] |840 |793 | |Theoretical air-fuel ratio |14.6 |6.5 | 3.3 Performance of six stroke diesel engine 3.3.1 Comparison with four stroke diesel engine A four-stroke engine has one intake stroke for every two engine rotations. For the six-stroke engine, however, the intake stroke took place once for every three engine rotations. In order to keep the combustion heat per unit time constant, the combustion heat supplied to one six-stroke cycle should be 3 or 2 times larger than that of the four-stroke engine. There are many ways to compare performance between the four-stroke and six-stroke engines. For this paper, the authors have chosen to compare  thermal efficiency or SFC at same output power. If the thermal efficiency was the same in both engines, the same output power would be produced by the fuels of equivalent heats of combustion. Therefore, in order to make valid comparison, fuels supplied per unit time were controlled at the same value for both engines and engine speeds were kept constant. In this section, fuel supplied for the engines was only a diesel fuel. Performance of the six-stroke engine was compared with that of the four-stroke engine under various injection timings. Detailed conditions for comparison of the four-stroke and six-stroke engines are listed in Table. 3. The heat allocation ratio of the six-stroke engine was set at ÃŽ ±H = 0.5. Injection flow rate of fuel was Qt4 = 0.50 KJ/cycle for the four-stroke engine and Qt6 = 0.68 KJ/cycle for the six stroke engine. For six stroke engine, it meant that the amount of 0.34KJ was supplied at each combustion process. At the viewpoint of combustion heat, 0.75 KJ/cycle of heat should be supplied for the six stroke engine to make the equivalence heat condition. However diesel fuel of 0.68 KJ/cycle was supplied here because of difficulties associated with methanol injection. Injection timing of the four-stroke engine was changed from 160 degrees (200BTDC) to 180 degrees (TDC). For six -stroke engine, the injection timing of the first combustion process was fixed to 165 degrees (15 °BTDC) or 174 degrees (6 °BTDC), and the second injection timing was changed from 520 degrees (2000 BTDC) to 540 degrees (TDC). [pic] Fig 15 Valve timing diagram four stroke engine Table 3. Detailed conditions of comparison between the four stroke and six stroke diesel engines and performance of engine | |Four Stroke |Six Stroke | |Engine Parameters |Diesel Engine |Diesel Engine | |Engine Speed Ne [rpm] |2007 |2016 | |Supplied combustion heat per cycle | | | |Qt [KJ/cycle] |0.50 |0.68 | |Supplied combustion heat per unit time Ht [KJ/s] | | | | |8.36 |7.62 | |Intake air flow per cycle | | | |Ma [mg/cycle] |358.7 |371.4 | |Injection quantity per cycle | | | |Mf [mg/cycle] |11.8 |16 | | | | | |Excess air ratio ÃŽ » |2.40 |1.83 | |Intake air flow per unit time | | | |Ma [g/cycle] |6.00 |4.16 | |Injection quantity per unit time | | | |Mf [g/sec] |0.197 |0.179 | |Brake torque Tb [N-m] |15.52 |15.28 | |Brake power Lb [KW] |3.26 |3.24 | |BSFC. b [ g / KW-h] |217.9 |520.3 | |IMEP Pi [Kgf / cm2] |5.94 |4.37 | |Indicated torque Ti [N-m] |19.10 |18.71 | |Indicated power Li [KW] |4.01 |3.75 | |ISFC bi [g / KW-h ] |177.2 |163.3 | Indicated torque of the six-stroke engine is almost same level with that of the four-stroke engine under various injection timings. NO concentration in exhaust gas of the six-stroke engine was lower than that of the four-stroke engine. NO emissions from both engines were reduced by the retard of injection timing. The effect of retard in the second injection timing of the six-stroke engine was similar to that of the retard in the four-stroke engine. For the six-stroke engine, from the comparison between Xi I = 165 degrees (15 °BTDC) and Xi I = 174 degrees (6 °BTDC), it seemed that the NO reduction effect appeared with the timing retard in the first combustion process. Soot emission in the exhaust gas of the four-stroke engine was low level and it was not affected by the timing retard of injection. However, the level of soot emission from the six-stroke engine was strongly affected by the timing of the second injection. When the injection timing was advanced from 528 degrees (12 ° BTDC), it was confirmed that the soot emission was lower than that of the four-stroke engine. From numerical analysis, it was considered that the soot formed in the first combustion process was oxidized in the second combustion process. On the contrary, when the injection timing was retarded from 528 degrees (12 ° BTDC), soot emission increased with the timing retard. Then, it was considered that the increased part of the soot was formed in the second combustion process because an available period for combustion was shortened with the retard of injection timing. Experimental conditions were Xi = Xi I = 170 degrees (100 BTDC) and XiII=530 degrees (100 BTDC). The heat allocation ratio of six stroke engine was ÃŽ ±H=0.5. The cylinder temperature and heat release rate were calculated from the cylinder pressure. The pattern of heat release rate in the first combustion stroke of the six-stroke engine was similar to that of the heat release rate of the four-stroke engine. It was the typical combustion pattern that contained a pre-mixed combustion and diffusion combustion. On the other hand, since an increase of cylinder temperature in the second combustion process was caused by the compression of the burned gas formed in the first combustion stroke, a pre-mixed combustion in the second combustion process was suppressed by a short ignition delay. The maximum cylinder temperature in the first combustion process was lower than that in the four-stroke engine. It was caused by smaller amount of fuel which was injected in the first combustion process. Considering these results, it was proved that NO concentration in the exhaust gas was reduced by the decrease of the maximum cylinder temperature in the first co mbustion process and EGR effect in the second combustion process. The performance of these two engines could be compared by Table. 3. Since BSFC of the six-stroke engine obtained by the brake power suffered, SFC is compared with ISFC for the Xi = 163 degree (170 BTDC), ISFC of the four-stroke engine was 177.2 g/KW-h. On the other hand, for the Xi I = 165 degrees (15 ° BTDC) and Xi II = 523 degrees (170 BTDC), I.S the six-stroke engine was 163.3 g/KW-h. i.e. ISFC of the six-stroke engine was slightly lower than that of the four-stroke engine. It was considered that this advantage in ISFC was caused by a small cut-off ratio of constant pressure combustion. Because, in the six-stroke engine proposed here, the fuel divided into two combustion processes resulted in a short combustion period of each combustion process. Furthermore, in the reduction of NO emission, the six-stroke engine was superior to the four-stroke engine. 3.3.2 Effect of heat allocation ratio Injection conditions were Xi I = 170 degrees (1000 BTDC) and Xi II = 530 degrees (100 BTDC). Both fuels in the first and second combustion processes were diesel fuel. Total fuel at the combustion heat basis was Qt = 0.68 KJ/cycle. It meant a high load in this engine because the total excess air ratio was 1.83 as previously shown in Table 3. The maximum value of the indicated torque appeared around ÃŽ ±H = 0.5 NO concentration in exhaust gas was reduced by an increase of heat allocation ratio. In other words, NO emission decreased with an increase of the fuel of the second combustion process. In the case of ÃŽ ±H = 0.5, there is a relatively long ignition delay in the first combustion process and pre-mixed combustion was the main combustion phenomena in it. NO of high concentration was formed in this pre-mixed combustion process. On the other hand, in the case of ÃŽ ±H = 1, diffusion combustion was the main combustion phenomena and NO emission was low. Soot emission in exhaust gas increased with an increase of heat allocation ratio. Since the injection flow rate in the second combustion process increased with an increase of the heat allocation ratio, the injection period increased with an increase of the heat allocation ratio. It caused the second combustion process to be long, and unburnt fuel that was the origin of soot remained after the second combustion process. The heat release rates on ÃŽ ±H = 0.15 and ÃŽ ±H = 0.85. For ÃŽ ±H =0.15, since injection flow rate in the first combustion process was high and injection period in it was long, the combustion period in the first combustion process became long as compared with case of ÃŽ ±H = 0.85. On the other hand, for ÃŽ ±H = 0.85, the combustion period in the second combustion process became long as compared with case of ÃŽ ±H=0.15. It was also observed that the long combustion periods in both the first and second combustion were caused by the long diffusion combustion. Further, diffusion combustion was the main combustion phenomena of the second combustion process. When the heat allocation ratio was 0.85, the ratio of heat release rates between the first and second combustion should be 15: 85, however the actual ratio obtained from the figure was 46: 54. This inconsistency was caused from the drift of the base lines of the heat release diagrams. For ÃŽ ±H = 0.15, the actual ratio of heat release rates was 73: 27 with the similar reason. The cylinder temperature for the ÃŽ ±H = 0.15 condition was higher than that of the ÃŽ ±H = 0.85 condition. This could be explained as follows. In the first combustion stroke, since the injection flow rate of ÃŽ ±H = 0.15 was higher than that of ÃŽ ±H = 0.85, the combustion temperature for the ÃŽ ±H = 0.15 condition was higher than that of ÃŽ ±H = 0.85. In the second compression stroke, since the high temperature burned gas was re-compressed, the temperature of ÃŽ ±H = 0.15 was also higher than that of ÃŽ ±H = 0.85. As a result, the temperature at the beginning of the second combustion stroke was high in ÃŽ ±H = 0.15 condition as compared with ÃŽ ±H = 0.85 condition. At the later stage of the second combustion, however, the opposite relationship between these two temperatures were observed, because the injection flow rate of the second combustion process was low in ÃŽ ±H = 0.15 condition. The maximum temperatures in the first and second combustion process decreased with an increase of the heat allocation ratio. Then, it could be concluded that the reduction of NO concentration with the heat allocation ratio, was caused by the decrease of the cylinder temperature. 3.4 Performance of the dual fuel six stroke diesel engine 3.4.1 Comparison with diesel fuel six stroke engine Operating conditions of comparison between the diesel fuel and the dual fuel six-stroke engines are shown in Table. 4. Experimental conditions were Xi I= 170 degrees (100 BTDC), Xi II = 530 degrees (10o BTDC) and ÃŽ ±H = 0.5. In dual fuel six-stroke engine, diesel fuel and methanol were supplied into first and second combustion process, independently. Combustion heats supplied per one cycle of the diesel fuel and dual fuel six-stroke engines were same. The combustion heat supplied per one cycle was selected as Qt = 0.43 KJ/cycle under the middle load condition. Performance of the dual fuel six-stroke engine was compared with the diesel fuel six-stroke engine under various injection timings in the second combustion process. Indicated torques of both engines was revealed constant around 15 N-m. As a result, it could be concluded that states of combustion of the diesel fuel and the dual fuel six-stroke engines had similar contributions on the engine performance. NO emissions from the dual fuel six-stroke engine were lower than those of the diesel fuel six-stroke engine. This effect appeared prominently at the advanced injection timing of the second combustion. Further, NO concentrations of both engines were reduced by the injection timing retard in the second combustion. [pic] Fig 16 Torque- Angle diagram for six stroke engine Soot emission in the exhaust gas of the diesel fuel six stroke engines increased with a retard of the injection timing in the second combustion. For the dual fuel six-stroke engine, the exhaust level of soot was very low under various injection timings of the second combustion process. Soot was formed clearly by the combustion of diesel fuel in the first combustion process and it was oxidized in the second combustion process. Considering these results, it was possible to estimate that soot was almost oxidized by methanol combustion in the second combustion process. This estimation is supported by a dual fuel diesel engine operated with diesel fuel methanol. The combustion heat supplied per one cycle was selected as Qt = 0.68 KJ/cycle under the high load condition. Indicated torques of both engines was also revealed constant around 20 N-m. NO concentration had the same tendency as the cases of the middle load. Soot emission level of the diesel fuel six-stroke engine was high in this high load condition. For the dual fuel six-stroke engine, however, soot was very low under various injection timings of the second combustion process. The performance of these engines was compared in Table. 4. For the second combustion process, since combustion heats of diesel fuel and methanol were different, injection quantities of both engines were different. BSFC and ISFC of the dual fuel six-stroke engine was sensibly higher than that of the diesel fuel engine. To compare the performance of these engines, injection quantity of both engines was defined by an amount of combustion heat, and SFC should be calculated from it. As a result, indicated specific heat consumption of the diesel fuel six-stroke engine was 5.59 MJ/KW-h, and that of the dual fuel six-stroke engine was 5.43 MJ/KW-h. For the high load conditions shown in Table. 5, the similar advantage of the dual fuel six-stroke engine was observed. Table 4. Detailed conditions of comparison between the diesel fuel and dual fuel diesel engines and performance of engines under ÃŽ ±H = 0.5 and middle load | |Diesel Fuel Six Stroke Diesel |Dual Fuel Six Stroke | | |Engine |Diesel Engine | |Engine Speed Ne [rpm] |2016 |2003 | |Supplied combustion heat per cycle | | | |Qt [KJ/cycle] |0.43 | | |Injection quantity per cycle |5.0 | | |(First Combustion Stroke) |(Diesel Fuel) | | |Mf1 [mg/cycle] | | | |Injection quantity per cycle |5.0 |10.7 | |(Second Combustion Stroke) |(Diesel Fuel) |(Methanol) | |Mf2 [mg/cycle] | | | |Excess air ratio ÃŽ » |2.98 |3.15 | |Brake torque Tb [N-m] |3.14 |3.14 | |Brake power Lb [KW] |0.66 |0.66 | |B.S.F.C. b [ g / KW-h] | 610.9 |952.9 | |I.M.E.P. Pi [Kgf / cm2] |3.43 |3.53 | |Indicated torque Ti [N-m] |16.70 |15.12 | |Indicated power Li [KW] |3.1 |2.77 | |I.S.F.C. bi [g / KW-h ] |130.1 |198.4 | |Indicated specific heat consumption | | | |bi’ [MJ /KW-h] |5.59 |5.43 | In order to confirm the advantage of dual fuel six-stroke engine, the performance of these engines was compared with four-stroke engine as shown in Table. 6. NO concentrations of the diesel fuel and the dual fuel six-stroke engines were improved with 85 90% as compared with that of the four-stroke engine. Soot emission of the diesel fuel six-stroke engine was much higher than that of the four-stroke engine. However, for the dual fuel six-stroke engine, soot level was very low. Furthermore, the indicated specific heat consumption of the diesel fuel and dual fuel six-stroke engine were lower than that of the four-stroke engine. Especially, for the dual fuel six-stroke engine, the indicated specific heat consumption was improved with 15% as compared with that of the four stroke engine. From these results, it could be confirmed that the dual fuel six-stroke engine was superior to the diesel fuel six-stroke engine, and also it was superior to the four-stroke engine. Table 6. Percentage improvements of exhaust emission and specific heat consumption | |Four Stroke Diesel | Six Stroke Diesel Engine|Dual Fuel Six Stroke Engine | | |Engine | | | |NO [ppm] | |113 |90.5 | |( % improvement) |768 |(85.3%) |(88.2%) | |Soot [%] | |28.8 |0 | |(%improvement) |6.8 |(- 323.5%) |(100%) | |Indicated specific heat consumption bi’ | | | | |[MJ/KW-h] |7.51 |6.61 |6.37 | |(% improvement) | |(12.0%) |(15.2%) | Table 5. Detailed conditions of comparison between the diesel fuel and dual fuel diesel engine and performance of engines under ÃŽ ±H =0.5 and high load | | Six Stroke Diesel Engine |Dual Fuel Six Stroke Engine | |Engine Speed Ne [rpm] |2016 |2006 | |Supplied combustion heat per cycle | | | |Qt [kJ/cycle] |0.68 | | |Injection quantity per cycle |8.0 | | |(First Combustion Stroke) |(Diesel Fuel) | | |Mf1 [mg/cycle] | | | |Injection quantity per cycle |8.0 |17.2 | |(Second Combustion Stroke) |(Diesel Fuel) |(Methanol) | |Mf2 [mg/cycle] | | | |Excess air ratio ÃŽ » |1.86 |1.93 | |Brake torque Tb [N-m] |6.18 |6.08 | |Brake power Lb [kW] |1.52 |1.5 | |B.S.F.C. b [ g / kW.h] | 504.0 |777.7 | |I.M.E.P. Pi [kgf / cm2] |4.56 |4.75 | |Indicated torque Ti [N-m] |21.68 |20.38 | |Indicated power Li [kW] |3.45 |2.98 | |I.S.F.C. bi [g / kW.h ] |155.5 |236.2 | |Indicated specific heat consumption | | | |bi’ [MJ /kW.h] |6.61 |6.37 | 3.4.2 Effect of injection timing Performance of the dual fuel six-stroke engine under various injection timings in the second combustion process was investigated on middle and high load. Experimental conditions were Xi I = 170 degrees (100 BTDC) and ÃŽ ±H = 0.5. Performance of the dual fuel six-stroke engine under both load conditions had the similar tendency with the timing retard. NO concentrations in the high load condition were higher than those of the middle load condition. However, soot emission levels of both load conditions were extremely low under various injection timings of the second combustion. 3.4.3 Effect of heat allocation ratio Performance of the dual fuel six-stroke engine under various heat allocation ratios was investigated on middle and high load. Injection conditions were Xi I = 170 degrees (100 BTDC) and Xi II = 530 degrees (100 BTDC). Since the combustion heat of methanol was low, experimental range of heat allocation ratio was limited by the smooth operation of the engine. Only the range from ÃŽ ±H = 0.25 to 0.75 (on Qt = 0.43 KJ/cycle), and from ÃŽ ±H = 0 to 0.5 (on Qt = 0.68 KJ/cycle) could be tested.. Indicated torque increased with an increase of the heat allocation ratio. NO concentration in exhaust gas was reduced with an increase of the heat allocation ratio. Soot was very low, irrespective of the methanol flow rate. Even if the load condition was high, it was concluded that soot was practically eliminated by a small amount of methanol in the second combustion process (8% of total fuel). 4. ADVANTAGES OF SIX STROKE OVER FOUR STROKE ENGINES The six stroke is thermodynamically more efficient because the change in volume of the power stroke is greater than the intake stroke, the compression stroke and the Six stroke engine is fundamentally superior to the four stroke because the head is no longer parasitic but is a net contributor to – and an integral part of – the power generation within exhaust stroke. The compression ration can be increased because of the absent of hot spots and the rate of change in volume during the critical combustion period is less than in a Four stroke. The absence of valves within the combustion chamber allows considerable design freedom. 4.1 Main advantages of the duel fuel six-stroke engine: 4.1.1 Reduction in fuel consumption by at least 40%: An operating efficiency of approximately 50%, hence the large reduction in specific consumption. the Operating efficiency of current petrol engine is of the order of 30%. The specific power of the six-stroke engine will not be less than that of a four-stroke petrol engine, the increase in thermal efficiency compensating for the issue due to the two additional strokes. 4.1.2 Two expansions (work) in six strokes: Since the work cycles occur on two strokes (3600 out of 10800 ) or 8% more than in a four-stroke engine (1800 out of 720 ), the torque is much more even. This lead to very smooth operation at low speed without any significant effects on consumption and the emission of pollutants, the combustion not being affected by the engine speed. These advantages are very important in improving the performance of car in town traffic. 4.1.2 Dramatic reduction in pollution: Chemical, noise and thermal pollution are reduced, on the one hand, in proportion to the reduction in specific consumption, and on the other, through the engine’s own characteristics which will help to considerably lower HC, CO and NOx emissions. Furthermore, it’s ability to run with fuels of vegetable origin and weakly pollutant gases under optimum conditions, gives it qualities which will allow it to match up to the strictest standards. 4.1.3 Multifuel: Multifuel par excellence, it can use the most varied fuels, of any origin (fossil or vegetable), from diesel to L.P.G. or animal grease. The difference in inflammability or antiknock rating does not present any problem in combustion. It’s light, standard petrol engine construction, and the low compression ration of the combustion chamber; do not exclude the use of diesel fuel. Methanol-petrol mixture is also recommended. 5. CONCLUSIONS The performance of the dual fuel six-stroke engine was investigated. In this dual fuel engine, diesel fuel was supplied into the first combustion process and methanol was supplied into the second combustion process where  the burned gas in the first combustion process was re-compressed. The results are summarized as follows. 1. Indicated specific fuel consumption (ISFC.) of the six-stroke engine proposed here is slightly lower than that of the four-stroke engine (about 9% improvement). NO and soot emissions from the six-stroke engine was improved as compared with four-stroke engine under advanced injection timings in the second combustion stroke. 2. For the dual fuel six-stroke engine, the timing retard and an increase of heat allocation ratio in the second combustion stroke resulted in a decrease of the maximum temperatures in the combustion processes. It caused the reduction of NO emission. 3. For the dual fuel six-stroke engine, soot was practically eliminated by a small amount of methanol in the second combustion process. 4. From the comparison of the performance between the dual fuel six-stroke and the four-stroke engine, it was concluded that indicated specific heat consumption of the dual fuel six-stroke engine was improved with 15% as compared with the four-stroke engine. NO concentration of the dual fuel six-stroke engine was improved with 90%. Furthermore, soot emission was very low in the dual fuel six-stroke engine. 5. As the fuel in one cycle was divided into two combustion processes and the EGR effect appeared in the second combustion process, the decreased maximum cylinder temperature reduced NO concentration in the exhaust gas It was further confirmed that soot formed in the first combustion process was oxidized in the second combustion process .Therefore, a six stroke DI diesel engine has significant possibilities to improve combustion process because of its more controllable factors relative to a conventional four-stroke engine. Considering these results, it was confirmed that the dual fuel six-stroke engine was superior to the four-stroke engine. 6. REFERENCES 1. Tsunaki Hayasaki, Yuichirou Okamoto, Kenji Amagai and Masataka Arai â€Å"A Six-stroke DI Diesel Engine under Dual Fuel Operation â€Å"SAE Paper No 1999-01-1500 2. S.Goto and K.Kontani, A Dual Fuel Injector for Diesel Engines, SAE paper, No. 851584, 1985 3. â€Å"Internal Combustion Engines â€Å"A book by Mathur Sharma. 4. â€Å"Internal Combustion Engines† Tata McGraw-hill publications, Author V Ganesan 7. NOMENCLATURE Ne : Engine speed X : Crank angle Xi : Injection timing of the four-stroke diesel engine ÃŽ ±H : Heat allocation ratio Q : Supplied combustion heat Qt : Supplied combustion heat per cycle P : Cylinder pressure V : Cylinder volume Vs : Stroke volume Pi : Indicated mean effective pressure (LM.E.P) Ti : Indicated torque Li : Indicated power Tb : Brake torque Lb : Brake power Ht : Supplied combustion heat per unit time Ma : Intake air flow per cycle Ma : Intake air flow per unit time Mf : Injection quantity per cycle Mi : Injection quantity per unit time ÃŽ » : Excess air ratio b : Brake specific fuel consumption (B.S.F.C.) bl : Indicated specific fuel consumption (I.S.F.C.) bi : Indicated specific heat consumption SUBSCRIPTS I: first combustion stroke II: second combustion stroke 4: four-stroke diesel engine 6: six-stroke diesel engine