Beer Wars Essay

Beer Wars is a documentary film directed and produced by Anat Baron and released in April of 2009. It focuses on the struggle between the dominating corporate businesses of Anheuser-Busch, Miller Brewing Company, Coors Brewing Company, and the smaller independent businesses of â€Å"craft beers† such as Dogfish Head Brewery, The Boston Beer Company, and The New Belgium Brewing Company. The film covers many aspects of the beer â€Å"wars† between the companies such as competitive advertising, product quality, price, distribution, and government regulations. Because of the enormous status and power of the big three, the ability to advertise and market their wares is significantly easier than for most other breweries. From being able to hire top dollar marketing experts to running multimillion dollar commercials during the Super Bowl, they dominate the beer advertising market. With their lack of ability to buy â€Å"shelf space†, smaller companies are often pushed out of the way and driven to less marketable places in the aisles of stores nationwide. Rhonda Kallman, owner of The New Century Brewing company, known for its craft beer â€Å"Moonshot†, talked about how she often would put up a poster advertising her beer one day only to find it replaced by a competitor’s poster the next day. This is a glimpse at the competitiveness that small breweries face day to day. Today, The New Century Brewing company is currently shut down due to the FDA’s banning of caffeinated beers; Moonshot fell victim to this regulatory axe. This is what happens when the bread and butter of your company can no longer be produced. The fall of Kallman’s company, however, is just another tragic story in the long history of beer manufactures. By the late 70‘s and early 80‘s, many people turned towards homebrewing to meet their taste needs because of the bland taste of the larger breweries products. Charlie Papazian was one of those people. A nuclear engineer at the University of Virginia, he started experimenting with homebrewing soon after it was legalized in 1978. His main focus was quality and diversity when out of his house he started the American Homebrewers Association; now a nationwide association of over 36,000 members with it’s own magazine. While giving a tour of his prized collection he made sure to point out that what he cared about most was â€Å"Quality. Not necessarily quantity, but quality. † Papazian was not the only one who desired quality over quantity. Samuel Calagione was yet another man focused on quality. In 1995 he founded the company Dogfish Head Brewery naming it after Dogfish Head, Maine where he spent summers as a child growing up. Starting out as a fledgling company in Delaware, and growing by nearly 400% between 2003 and 2006, it now is one of the most successful craft breweries in the U. S. A. The film went into great detail on the various struggles that small breweries went through. From the competitive advertising to the rules and regulations of the trade, small breweries are faced with many challenges day to day. After the Prohibition in the 1930’s, a three-tier system was set up by many states in order to control the flow of alcohol from producer to consumer. However, this proved to be often times a problem for fledgling companies with little buying power. In order to get their beers out there and known, they must go through a wholesaler distributer first. The problem though is that often times the wholesalers favor the Big Three or other large companies because of their buying power. When it came down to having to choose whether to ship a Coors Light or a Moonshot, often times the well known brand would be chosen not only for it’s popularity but also because of the pay that the larger companies could give for their favor over others. Kallman learned that shelf space is yet another difficulty faced by the craft beer companies. If you’re most seen, you’re most bought and the Big Three knew this. Another difficulty faced is the temptation to sell out to the big companies. Over the years, Anheuser-Busch, Miller, and Coors all have been buying up the little companies as soon as they showed promise; all in order to try to get a bigger piece of the pie that is market share. If they couldn’t buy you, they would try to destroy you. So in conclusion, Beer Wars is one of the first documentary films to go into great detail on the battle for survival and power between the various beer companies of America; showing the struggles of the craft breweries against the big companies and the fight for power among the larger companies and their major competitors. Sources http://beerwarsmovie. com/tag/rhonda-kallman/ http://en. wikipedia. org/wiki/ http://www. cnn. com/FOOD/resources/food. for. thought/beverages/alcohol/homebrew/papazian/.

AIDS and Children

HIV/AIDS is relatively a new disease, and was first recognized in the year 1980, following an outbreak of the opportunistic infection Pneumocystis carnii pneumonia in a group of New York homosexuals.   The incidences of Kaposi’s sarcoma (a malignancy of the blood vessels) were also observed to occur more than 50 times in young homosexuals.Gradually, it was observed that the condition was an infectious disease, and tended to spread wherever infected blood/semen was involved including blood transfusion, intravenous drug usage and unprotected sexual activity (whether homosexual or heterosexual).The condition was gradually observed to affect the immune system, causing a huge number of opportunistic infections and malignancies.   By the year 1982, AIDS was also observed in several children belonging to New York, San Francisco, Miami and New Jersey.The condition was relatively unknown before the 1980’s and following this, it became one of the most common and deadly infect ious diseases.   Although, HIV/AIDS began in a developed nation which could handle the ill-effects of the disease, it slowly began to spread to developing and poor nations, and the effect on such individuals is even more devastating (Mandell, 2005 & Borkowsky, 2004).HIV/AIDS has not only been a problem in the reproductive age group, but has also caused serious problems in the pediatric age groups.   In the US, more than 9300 children (as on December 2002) have been affected with the disease.   The number of cases of individuals affected with the disease is still on the rise.There may be several differences in the opportunistic infections, malignancies and symptoms that occur in children and adults.   In children, HIV/AIDS can either spread through vertical transmission (from infected mother to child) and from other means (including child sexual abuse, IV drug abuse, infected blood transfusion, etc).If we look at vertical transmission of HIV/AIDS, the disease can be transmitt ed by three different methods, which occur at three different times: – prenatally it is transmitted across the placenta from the infected maternal blood, during delivery it may be transmitted from contaminated material secretions and after delivery it may occur due to consumption of contaminated breast milk.Some of the factors that play an important role in the transmission of HIV/AIDS from infected mother to child include the severity of the infection of the mother, the material viral load, trauma to the child during delivery, the mode and the duration of breastfeeding.Children below the age of 13 years can develop lymphoid interstitial pneumonia, pulmonary lymphoid hyperplasia and recurrent bacterial infections.   The risk of a serious drop in the CD T4 lymphocytes below 200 is less in children compared to adults.   In children with HIV/AIDS, the CD T4 cell count can play a major role in determining the prognosis of the disease.Children usually have a rise in the number of lymphocytes.   This may be observed in normal children and infants.   If the CD4 count in children affected with HIV/AIDS drops down, it can suggest a serious impairment.   Children suffering from HIV/AIDS may also develop a serious form of pneumocystis carinii pneumonia (PCP) and can develop serious respiratory problems.This condition may also be fatal if proper preventive measures and treatment are not followed (CDC, 1996, Mandell, 2005 & Borkowsky, 2004).Another problem that can be frequently observed in children who develop HIV/AIDS from infected mothers (vertical transmission) is the chances of co-infection with other STD’s including hepatitis B, hepatitis C, etc.   These conditions are transmitted in a similar manner (mainly IV drug usage, unprotected sex, blood transfusion, vertical transmission, etc).Often when a person is infected with HCV, the infection takes a long time to develop and progress (about 20 years).   However, in co infection with HIV, the re may be an acceleration of both the conditions often leading to severe disease in the infant or childhood stage of life.When the mother is co-infected with HIV/AIDS and hepatitis C infection, the chances of the child getting infected with HIV is much higher than if the mother is infected with HIV alone.   In cases of infection with HIV, the infection spread in 16 % of the cases, whereas in co-infection cases, it spread 26 % of the total number of cases (England, 2006).The Problem1. Incidences of HIV/AIDS in childrenThe exact incidences of HIV/AIDS in children may be far more than anticipated.   On December 31, 2002, more than 9300 children were reported to suffer from AIDS.   A majority of these cases are due to infection from the infected mother.In a study conducted in 1997 in the US, more than 91 % of the cases were due to infection from the mother to the child, 2 % were due to transfusion of infected blood and 8 % developed the condition due to an undetermined risk.   1 of the children who was a part of the study had a clotting disorder.Most of the children who were infected with HIV/AIDS had parents who were using IV drugs.   In most cases, the mother practiced unprotected sex.   There is a lot of racial differences in the rates of HIV/AIDS.   Individuals belonging to minority and weaker sections of the population are at a higher risk of acquiring the infection compared to the mainstream population.There is a tendency that children across the various racial groups would have the same incidence rates of HIV/AIDS as their mothers.   In a study conducted, it was found that 63 % of the children affected with HIV/AIDS were African-Americans and 26% were Hispanics.   18 % belonged to the White groups and 1 % was from the other racial groups.Out of every 100, 000 children in the US who developed HIV/AIDS, 6.4 % were Blacks, 2.3 % were Hispanics, 0.4 % were Whites and 0.7 % were other racial groups.   In most HIV affected children, the diseas e is diagnosed at the age of 18 months.In most children affected with HIV (about 80 % of all cases), AIDS develops by the age of 5 years.   Most cases of HIV/AIDS was recorded in New York (1900 cases), followed by Florida (1200 cases), New Jersey, California and Texas.   Between the years 1984 to 1992, there was a rise in the incidence of HIV/AIDS due to the ignorance of the disease from various populations including Blacks and homosexual groups.In the year 1992, the number of HIV/AIDS cases were as high as 905, which declined to 663 in 1995 (a drop in about 27%) mostly attributed to greater awareness and education.   However, across varies ethnic and racial groups, greater amount improvements occurred in the Whites (39 % drop), followed by Black (26 % drop) and Hispanic (25 % drops).Another reason for this drop had been the sudden discovery of the effect of Zidovudine (an antiretroviral drug) in helping to reduce the vertical transmission of HIV/AIDS from infected mother to c hild.   In 1994, a series of clinical trials effectively demonstrated that the disease vertical transmission could be reduced by about 65 % if Zidovudine was given early during the pregnancy of the infected woman.Hence, recommendations were raised for mandatory testing, counseling and ARV therapy for pregnant women.   Following more active implementation of this program following 1995, the number of HIV/AIDS cases due to vertical transmission dropped to 92 in 2002.   This was a significant drop, cutting the incidence rates by 10 times within a span of ten years (Mandell, 2005, Yogev, 2004, CDC, 1996, CDC, 2008).

Description for the map Essay Example | Topics and Well Written Essays - 500 words

Description for the map - Essay Example Inner Mongolia has only a small number of rivers such as the Yellow river and other seasonal rivers. The region is endowed with many lakes comprising Hulun, Nur and Dalai Nur among others. Mongolian terrain represents the Alps and continuing plateaus that have a very high amount of relief. Starting from the Gobi Desert located in the southern part of Mongolia, the region has a treeless plain that is covered with grass and has three mountain ranges. The desert is a home to rare animals such as the black tail antelope, brown bear and Havtgai, wild Bactrian camel. Tavan Bogd Uul represents the highest point in Inner Mongolia (4374 meters) and the lowest region (560 meters) lies to the eastern Mongolian plain. Since one can go through the map and find various features found within Inner Mongolia attests to the fact that the map helps in solving problems. People such as travellers and tourists can use it to locate different features that may be of interest to them. Consequently, such features, in my view, contribute greatly in shaping the Inner Mongolia story. As mentioned earlier, travellers and tourists are critical users of the Inner Mongolia Map. These people will, in particular, use the map in identifying the various physical features found in Inner Mongolia. The Inner Mongolia map will, for instance, be important in helping the tourists to locate the splendid pasture scenery in Mongolia, the Xiritala Grassland Scenic area, and the Hinggan Ling Mountains among others. Moreover, the map will also help historians in understanding the history of Inner Mongolia. They can use the map to locate features such as the tomb of Genghis and the monastery. The use of variations in colour in showing the different elevations in the Mongolian region is quite distinctive. Through the variations in colour, one gets the sense of the different physical features in the area. In addition, the use of delineation lines gives an idea of the land’s shape. This adds on or

Boxing Term Paper Example | Topics and Well Written Essays - 1750 words

Boxing - Term Paper Example Consequently, the current research will elaborate the techniques and terms related to boxing by providing a detailed overview of the sport under-examination. Despite the very fact that playing of different sports and games has always been a popular social phenomenon since the known history of the world, boxing has particularly been being played for recreational purposes as well as for turning the bodies tougher and harder (Murray 2007, p. 4). Wigle has declared boxing to be the perfect tool for a young person to learn commitment, discipline, accountability; it also guides the adolescents and athletes the skill of playing as an individual as well as team member under the specific competitive environment (2011, p. 2). In addition, boxing also teaches the boxer regarding his relation with self, opponent, judges and environment (Wigle 2011, p. 2). In other terms, boxing helps the player how to interact with his social, physical and natural environment. Similarly, through boxing, one learns how to defend oneself from the attacks of the opponent on the one side, and how to obtain dominant position during the sport on the other (Edwards 2010, p p. 33-34). Haislet has defined the fundamental position of boxing, which is rightly viewed as the most favorable position that turns out to be supportive in respect of the mechanical execution of skills and techniques required in boxing (1968, p. 1). It is partly because of the fact that it provides the chances of quick reaction as well as complete relaxation to the muscles for the time being. In the same way, it also helps the boxer in developing hand-feet coordination during the play by keeping the body in balance (1968, p. 1). Since the primary aim of the boxing is hitting the opponent by maintaining one’s position and balance and escaping the hits of the opponent, fundamental position is highly admired in the boxing

ASTR 123 Assignment Example | Topics and Well Written Essays - 250 words - 2

ASTR 123 - Assignment Example It remains unclear what chain of circumstance led to the emergence of life on Earth. However, scientists believe that the long period of relatively stable climate originating from the stable orbit of the planet at the favorable distance from a proper type of star are necessary factors of complex life on Earth (Guangxian and Xiao 33-34). The Rare Earth Theory holds that few planets can support the kind of complex life that the Earth supports. It contradicts the mediocrity principle which assumes Earth is a typical planet and that there is not much that is special about humanity. Other analysis suggests that the only planet that is capable of supporting complex life is the Earth. Proponents of the Rare Earth Theory indicate the long list of circumstances required for the evolution of complex life on earth. The creation of life requires water, and no planet apart from the Earth if known to have liquid water in large quantities. Many other planets do not have the right temperature to keep water liquid. Therefore, complex life cannot be found in such planets (Guangxian and Xiao 36). Considering that the galaxy is a very thin circular disk of stars of radius approximately 50,000 light years with 2500 civilizations in our galaxy capable of communication, the approximate separation of these civilizations in light years will be the perimeter divided by the number of civilizations. Based on the suggestions and responses of people, humans do not have the right characteristics to foster sustainability. Many of the respondents suggested that humans are moral, selfish, and lazy. The respondents feel that majority of human beings seek their own personal interest, want power, and work for selfish gains. Even though many people remain moral, majority do not have the characteristics to foster sustainability. Guangxian, Xu, and Xiao Jimei. New Frontiers in Rare Earth Science and Applications: Proceedings of the International Conference on Rare Earth Development and Applications

Intersubjectivity in The Light of Martin Heidegger and Martin Buber Essay

Intersubjectivity in The Light of Martin Heidegger and Martin Buber - Essay Example â€Å"the world is always the one that I share with Others. The world of Dasein is a with-world. And Being-in is Being-with Others.†7 So, â€Å"this Being-with Others defines the existence of Man. In Heidegger’s terms, now we know that for Dasein there is no Being without Being-in, and there is no Being-in without Being-with.†8 But what does Being-with mean? â€Å"Being-with must be of the essence of Dasein because without it any kind of relation to Others, even one of love, would not be possible, let alone essential itself.†9 This brings us to the fundamental question – What is Being? Herein is Heidegger’s foundation for intersubjectivity, i.e. the social self: Because Dasein’s Being is Being-with, its understanding of Being already implies the understanding of Others. This understanding, like any understanding, is not an acquaintance derived from knowledge about them, but a primordially existential kind of Being, which, more than any thing else, makes such knowledge and acquaintance possible. Knowing oneself is grounded in Being-with.10 Thus, Heideggerian intersubjectivity is rooted upon Dasein’s encounter of the others, that is to say, that it depends on the intersubjective encounters with other temporal beings. The world by which we share with other temporal beings requires a kind of open subjectivity in order for understanding to take place. But how do we experience intersubjectivity with others? How does Dasein encounter another Dasein? This is what Heidegger calls the principle of individuation: â€Å"the transcendence of the being of Dasein is a distinctive one since in it lies the possibility and the necessity of the most radical individuation.†11 So Dasein...In this essay, I will conduct a comparative analysis of two accounts of intersubjectivity. I will show that Heidegger’s account of intersubjectivity is foundational for Buber’s account to take place. To nullify the former, we thus nullify the latter. Hence, the differences in both accounts are but a matter of differing modes of interpretation, due to the complexity of the nature of intersubjectivity. It is easy to dismiss something which one makes no effort to understand. The literature of both Heidegger and Buber were obscure and abstract, yet full of meaning; most of which is left unspoken. Yet isn’t it the case that intersubjectivity is obscure and abstract? Doesn’t dialogue take place when its left unspoken? Herein is where the philosophies of both meet. For, it is in my contention that both philosophers need not differ drastically from each other’s account of intersubjectivity. It is in Heidegger’s account where Buber carries out his. The difference perhaps, if any, lies in its mode of interpretation, which is due to the complexity of the nature of intersubjectivity. Nevertheless, both accounts capture the essence of intersubjectivity, which proves to show how intersu bjective relations takes place. Intersubjectivity involves our awareness of others, the role they play in our lives, and the their significance in our quest for meaning and authenticity.

Lord Jenkins Essay Example | Topics and Well Written Essays - 1500 words

Lord Jenkins - Essay Example Sivaprakasapillai, and the fact that he was a member of the board of examiners and of the scrutinising committee. The third ground was to the effect that by reason of the first "the maxim that justice should not only be done but also appear to be done" had been violated. The fourth ground comprised the substance of the plaintiff's case and was to the effect that the evidence of the various witnesses who appeared before the commission of inquiry, including the evidence of Miss Balasingham, was taken in the absence of the plaintiff, who was not aware of what evidence was led against him, and that in the circumstances one of the essential elements of natural justice was not observed, inasmuch as the plaintiff was not aware of the case he had to meet. The fifth ground was to the effect that the evidence of the various witnesses was not taken entirely before all the three members of the commission of inquiry, and that such evidence was acted on by the commission, and that this circumstanc e was also a violation of the elementary principles of justice. The plaintiff further alleged that there was no evidence upon which the commission of inquiry could reasonably find the charge against the plaintiff proved, that the finding arrived at against the plaintiff was one which had not been arrived at in conformity with clause 8, and that the finding and decision were therefore void and of no effect. The allegations of bias or disqualification against Professor Mylvaganam as a member of the commission of inquiry were rejected in both courts as without substance. The allegation to the effect that there was no evidence upon which the commission could reasonably find the charge against the plaintiff proved was (so far as open to the court) clearly ill-founded. The allegation to the effect that the finding was not arrived at in accordance with clause 8 turned on the fact that the Vice-Chancellor appointed two other persons to sit with him as a commission of inquiry to investigate the matter, instead of proceeding to investigate it alone. It was held in both courts that this procedure was not open to objection, inasmuch as this was merely a method, which the Vice-Chancellor was free to adopt if he chose to do so, of satisfying himself of the truth or falsity of the charge, and the Report was a report by him for the purposes of clause 8 although signed by the two other members of the commission as well as himself. The plaintiff having taken no steps to appeal against *230 the decision of the court below on these matters of complaint, their Lordships need say no more about them. There remain the complaints to the effect that the evidence, including that of Miss Balasingham, was taken in the absence of the plaintiff who was not aware of the evidence led against him or of the case he had to meet; and that the evidence of certain witnesses was taken by the Vice-Chancellor in the absence of the other members of

The Changes in Corporate Governance of Japanese Companies Essay

The Changes in Corporate Governance of Japanese Companies - Essay Example The essay "The Changes in Corporate Governance of Japanese Companies" talks about the Toyota company marketing strategy, its history from the company's inception and its main goals for the company's future. Toyota was initiated in the year 1933 as a branch of Toyoda Automatic Loom Works with the main purpose of vehicle production under the direction and control of Kiichiro Toyoda, the son of the founder. It initial automobiles was the G1 and the A1 passenger car produced in the year 1935. In the year 1937, the Toyota Motor Company was initiated as a separate and independent company. In the year 2008, the Toyota Motor Company became numbers one globally in terms of sales; it surpassed the sales of General Motors. In the year 1924, Sakichi Toyoda came up with (invented) the Automatic Loom of the Toyota Model G. this invention ensured that the automobile stops itself automatically when a problem occurs. This automatic loom thereafter became part and process of the Toyota car production process. In the year 1929, Sakichi Toyoda sold the automatic loom patent to a British company; and hence automotive development startup capital was found. In August 1937; the name of the company was changed and trademarked as Toyota Motor Company. As from September 1947; Toyota Motor Company sold a small vehicle under the Toyopet name; for example Toyopet SA, Toyopet SB truck, and Toyopet Crown. However, in 1957 the Crown name was not well received in the United States of America because of connotations to toys or pets.

Ap Nsl Essay Example for Free

Ap Nsl Essay What are the difficulties in using the â€Å"wall of separation† principle? 5. List and explain the circumstances when the Supreme Court has ruled that freedom of speech may be limited. 6. Define the â€Å"clear-and-present-danger test,† libel, preferred position, prior restraint, imminent danger, and symbolic speech. You may just want to put these straight onto your flashcards 7. Summarize the Supreme Court’s changing interpretations of how to protect both the due process rights of accused criminals and to preserve the safety of the community. Define the exclusionary rule and the â€Å"good faith exception. †. Chapter 19 Reading Outline 1. What does the book say is the pertinent question regarding civil rights? 2. What were the strategies that black leaders followed in order to obtain civil rights? Once basic rights such as voting and integration had been obtained, what issues did civil rights leaders focus on? 3. Briefly outline the steps in the NAACP’s strategy in the fight against segregated schools and indicate the success they had in the courts and in implementing desegregation. . What was the issue concerning desegregation vs. integration? How has this issue been resolved? 5. What were the four developments that made it possible to pass civil rights bills? 6. What accounts for the change in attitude in Congress towards civil rights issues from the 1960s to the present?   How has the Supreme Court changed in its attitudes towards equal rights for women from the early 20th century to today? 8. What are the two standards the Court uses today to in considering sex discrimination cases? What is the debate between those who support â€Å"equality of result† and those who support â€Å"equality of opportunity†? 9. What are the criteria that the Supreme Court has adapted in defining strict scrutiny of any law involving racial preferences? 10. Briefly summarize the highlights of the government’s response to abortion. How did activists for the disabled manage to get The Americans with Disabilities Act passed? 12. Briefly summarize what is included in the law and the objections that some have had to the law.

Cafes Monte Case Essay Example for Free

Cafes Monte Case Essay The company located in Milan, Italy. It was found by Mario Salvetti as a manufacturer and distributor of premium finest coffees. The company faces a hard decision that may affect their future. The company wants to know whether or not they should keep working in the same investing. An important meeting was there among the top management team’s members to discuss the future of the company. The company’s performance was good in 2000. Profit was shown at the financial statement. Giacomo Salvetti the CEO of the company needs to decide which to choose as the business strategy for the company: 1) Keep working in the premium coffee market. 2) Transfer to the private brands market. The current capacity of the coffee production in 2000 was 350,000 K/M , with added additional capacity of 150,000K/M. The cost of the additional units was 6 billion liras. More facts about the profitability and the liquidity were required beside the cash flow and the profit plan to quantify strategic alternatives and to help in making this decision. The idea of changing was not easy to the CEO to accept without a clear image of the financial consequences. The report was provided by the marketing manager showed that the premium market is very volatile. On the other hand, the private brands market is more stable. (Full capacity at the price of 8,800 liras). Price is lower in the private market than the premium. The volume is depending of the number of retailers. ( Every additional retailer need at least 500,000 K/Y). The report was provided by the manufacturing director showed that costs are different in each amount of the volume and quality of beans. These costs include the cost of beans, labor and fixed cost. The company is able to save 65% of selling costs, 75% of RD costs and 50% of administrative costs, if they choose the private brands market.(Director of strategic planning). Private brands’ retailers will pay slowly- 90 days instead of 30 days. (Financial officer). I took the sales price as the current price 8,800 liras. Most of the expenses are decline compare to what they were in 2000 beside also the profit. Marketing expenses were no longer there because the marketing percentage became 0% in this volume of the private market. The reason of having this decline is the gross margin of the private market comparing to the margin of the premium market. Sales price and cost in private market are less than what they are in the premium market. Cash flows are not stable during the year. It looks vary from quarter to another. In the cash flows, the retailers will pay in 90days (3months) period of time as what it is in the private market. The cash opining was 50% in the first month and 25% in next 2 months. The other expenses were divided by the 12 months equally. Variable and selling costs are showing in page(5). I don’t recommend the full transition to private market. The profit will be lower than what it is even if it is less volatile. There is no reason for the company to lose its premium market if the profit is low, too. I would support the chance of mixing the premium and the private markets together, because of the profitability there.

Achieving Universal Electricity Access

Achieving Universal Electricity Access PART I: INTRODUCTION Background of Study The importance of modern energy services in promoting socio-economic development has been extensively documented in the literature (Kaygusuz 2011), (Kanagawa and Nakata 2007) (Kanagawa and Nakata 2008). Access to modern energy services is closely related to other indicators of a descent standard of living in the 21st century, namely, availability of portable drinking water, literacy, health services, child mortality, etc (Meisen and Akin 2008). For example, in rural areas, the higher luminance of modern lighting brightens homes and encourages pupils to study in the nights; clean cookstoves and cookers using liquefied petroleum gas (LPG) can reduce incidences of indoor-air pollution caused by reliance on traditional biomass for cooking (Isihak, Akpan and Adeleye 2012), etc. As the most versatile carrier of energy, electricity is important in the provisions of basic social services in health, water, etc. Electricity is also useful promoting the income formation in rural areas through t he development of rural microenterprises (Akpan, Essien and Isihak 2013a). Electricity also powers large machinery in factories to increase productivity. Modern energy services, especially electricity, are crucial to several sectors of the economy of any country: higher education, agriculture, financial services, communication, rural development, etc. Despite the huge advantages of having access to electricity, several millions of persons around the world lack access to electricity. The International Energy Agency (IEA) estimated that in 2011 about xxx billion persons lacked access to electricity of which xxx million were in sub-Saharan Africa (IEA 2011). Consequently, one of the major energy challenges confronting countries in sub-Sahara Africa is that of providing access to modern energy services to its citizens. The electricity access situation in Nigeria is similar to that of many developing countries: the electricity access rate in Nigeria – the percentage of population without access to electricity – is 56% (NPC 2014) which is equivalent to about xxx million persons. However, the electricity access rates in the various states vary significantly from 10.9% in Taraba State to 99.1% in Lagos State as shown in Fig. 1. Figure 1: Electricity access rate in Nigeria by states Source of data: (NPC 2014) Three main factors which are inter-related are responsible for this disparity in the electricity access rates across the states: The population density across the states varies significantly as shown in Fig. 2. Places with higher population density have higher commercial activities and in-turn higher demand for electricity. Therefore, transmission and distribution lines are often constructed to deliver electricity to such locations because the electricity so delivered will not be under-utilized[1]; The major sources of electricity generation are natural gas and hydro. The gas-powered plants are located in the Niger Delta area where there is abundance of natural gas while the hydropower plants are in Niger State. Because transmission lines are constructed to evaluate power from the generation source to demand areas, these states and other states along the path of the transmission lines tend to have higher electricity access rates; Due to the first two reasons itemized above, the national grid does not cover all parts of the country. The electricity grid covers the states with high population density but not those with low population density as shown in Fig. 3. Figure 2: Population density across the different states in Nigeria Source of data: (National Population Commission, Nigeria 2006) Figure 3: Map of Nigeria showing existing, ongoing, and proposed generation and transmission (HV) projects Source: Transmission Company of Nigeria Given the importance of electricity access to sustainable socio-economic development of a country, the government of Nigeria carried out comprehensive reforms in the electricity sector to promote efficiency in the sector. One of the objectives of the electricity sector reforms is to increase access to electricity in areas with low electricity access rate. Consequently, the Electric Power Sector Reform Act 2005 created the Rural Electrification Agency to set up and administer the Rural Electrification Fund. As noted in the Act, the purpose of the Fund is to promote rural electrification programs through public and private sector participation in order to achieve more equitable access to electricity across the various states and to ensure universal access to electricity in Nigeria within the shortest possible time. Most rural electrification projects are done by extending the existing grid to the unelectrified communities. However, studies have shown that in situations where there is a larger problem of availability of sufficient generation capacity such as in Nigeria, extending the existing grid only connects households to the grid but does not necessarily imply that electricity will be available for household or productive uses (Akpan, Essien and Isihak 2013a). Moreover, grid-extension is capital intensive which implies that it will only be cost-effective when there is adequate demand for electricity in the unelectrified communities, otherwise, it will lead to underutilization. Incidentally, as we highlighted earlier, the population densities of the states with low electricity access rate are also relatively low. In addition, substantial percentage of the population in these places lives in rural areas where energy is needed mainly to meet the basic needs of lighting and cooking. The high cos t of extending the existing grid, coupled with the low population density and the low energy demand implies that other options for increasing electricity access in these areas, i.e. decentralized option, may be considered. Indeed, studies have shown that the use of decentralized option to increase electricity access in rural areas with sparse population settlement pattern and low electricity demand profiles is usually cost-effective (Bhattacharyya 2012a). The decentralized option will often use locally-available energy sources, usually solar, wind, or hydro, to generating electricity to meet the demand in the unelectrified community. These locally available energy sources may be complemented by a stand-alone diesel/gasoline generating set. The role of the rural electrification planner in this situation is to examine the cost-effective technology option, between grid-extension and decentralized electrification, for providing access to electricity in unelectrified communities. Spatial Electricity Planning Given the huge capital outlay required to construct transmission and distribution grids, and the fact the in many developing countries a large percentage of the population resides in rural where the electricity demand profiles may be low thereby leading to gross under-utilization of electricity, several studies have used electricity planning models to obtain the cost-effective option between grid-extension and off-grid electrification for increasing electricity access in rural areas (Sinha and Kandpal 1991), (Nouni, Mullick and Kandpal 2008), (Parshall, et al. 2009) (Deichmann, et al. 2011). These studies examine the cost of delivering a given amount of electricity from the point where the existing grid terminates to an unelectrified community by extending the existing grid and compares that the cost of using an off-grid option to deliver the same amount of electricity. The cost of grid-extension usually covers the capital cost of extending the medium and/or low-voltage transmission or distribution lines to the unelectrified communities having different levels of load, the cost of increasing the generation capacity to meet the additional load levels, the cost of constructing 33/11kV substations if required, the maintenance cost, and the potential transmission/distribution losses. The cost of the off-grid option usually include the cost of constructing the distribution lines and the cost of generating electricity using different locally available sources of energy, and the maintenance cost. In more recent times, some studies (Parshall, et al. 2009), (Sanoh, et al. 2012) have incorporated geographic information system (GIS) models to this traditional electricity planning method. GIS enables the planner to visualize the spatial location of the unelectrified communities in reference to the location of the electricity grid and to calculate the spatial distance of the communities from the grid. This procedure eases the process of estimating the capital cost of extending the existing grid because the capital cost is directly proportional to the distance of unelectrified communities from the grid. Another study (Kemausuor, et al. 2014) applied the Network Planner Tool which is a free web-based program that integrates geospatial information with energy demand information at a disaggregated level to assist electricity sector planners in determining the least-cost technology option for increasing electricity access. The model was developed by the Sustainable Engineering Lab of th e Earth Institute, Columbia University, United States. Objective of the Study This study seeks to examine the cost and the least-cost technology options for achieving universal electricity access in Nigeria, i.e. electricity access for all, within a specified investment timeline. This is done by applying the Network Planner Model at the state level and then aggregating the results to provide a whole picture for the entire country. It is important to note that the model may be applied at the national level but we preferred the state level so as to provide a picture of the situation at a disaggregated level. Organization of the Study This study is organized into five parts: Part I is the Introduction which sets the background for the study; Part II is an overview of the electricity sector in Nigeria; and Part III is a presentation of the Network Planner Tool which is used in the Study. In Part IV, we present the comprehensive results; while in Part V we provide our concluding remarks. PART II: Electricity Sector in Nigeria Legal Framework The year 2005 is a pivot year in the organization of the electricity sector in Nigeria because of the Electric Power Sector Reform (EPSR) Act, 2005 which is the prevailing legal framework governing Nigeria’s electricity sector. Prior to 2005, the sector was managed by a centralized, vertically integrated, state-owned monopoly called National Electric Power Authority (NEPA) which was created in 1972. By the late 1990s and early 2000s, NEPA was characterized with large wage bills due to over-staffing, accumulated debt, low rate of recovery of bills, and corruption. The poor performance of the sector in terms of low generating capacity relative to high demand, and erratic nature of supply necessitated reforms. The reforms were envisaged as a vehicle to attract private sector investment in the generation segment, improve reliability of electricity services, and improve operational and managerial efficiency in the sector. Prior to the enactment of the EPSR Act 2005, there was the N ational Electric Power Policy in 2001 which expressed the readiness of government to engage in far reaching reforms to increase the operational efficiency of the sector and set the stage for the Act. The EPSR Act 2005 mandated the vertical unbundling the various segments of the electricity value chain; the horizontal unbundling of the facilities in the generation segment; the decentralization of the distribution activities; the privatization of the successor companies from the vertical and horizontal unbundling; the creation of an independent regulator (Nigerian Electricity Regulatory Commission) which is also mandated to promote private sector participation in the generating segment through independent power plants (IPPs); and the establishment of the Rural Electrification Agency. The present structure of the Nigerian electricity sector is shown in Fig. 1. Figure 1: Organizational structure of the Nigerian electricity market Source: Author’s compilation Energy resources and utilization Nigeria is highly endowed with energy resources. Its resources based comprises of solid, liquid, and gaseous fossil fuels as well as renewable energy although they are not equally distributed across the country. Fossil Fuels Nigeria’s crude oil is classified as â€Å"light† and â€Å"sweet† and is concentrated in the Niger Delta part of the country as well as the Bight of Bonny. At the end of 2011, Nigeria’s proved recoverable crude oil reserve was estimated to be 37.2 billion barrels making Nigeria to have the ninth largest  [2] crude oil reserves in the world and the second in Africa (World Energy Council, 2013). Nigeria produced about 1.75 million barrels of oil per day in 2013 (based on figures from the organization of petroleum exporting countries, OPEC) and exports a greater part of the unrefined crude oil. Xx% of domestic demand for refined products is met through imports. In terms of end-use, Xx% of gasoline (premium motor spirit) and diesel is consumed in the transportation sector, xx% for self-generated electricity, and the remaining used as industrial inputs (ref). As with crude oil, Nigeria’s natural gas is concentrated in the Niger Delta part of Nigeria and the Bight of Bonny. At the end of 2011, Nigeria’s proved recoverable gas reserves was estimated to be 5110 billion cubic meters (180.5 trillion cubic feet) making Nigeria to have the eight largest natural gas reserve in the world and largest in Africa (World Energy Council, 2013). Although Nigeria produces and exports much of its gas, a large proportion is being flared. In 2011, (World Bank, Flaring Estimates Produced by Satellite Observations, 2011) estimate that 14.6 billion cubic meters of natural gas was being flared in Nigeria. Domestic utilization of gas is mainly for power production and a small percentage is used for domestic cooking. Of the xxxMW of installed generation capacity in Nigeria, 6558MW is from gas-powered generating plants (UNECA, 2011). Nigeria also has considerable amount of coal and tar sand which are barely utilized. The Renewable Energy Master Plan (REMP) 2012 estimated these to be 2.7 billion tons and 31 billion barrels of oil equivalent respectively (Energy Commission of Nigeria, 2012). Renewable Energy Nigeria is blessed with enormous renewable energy resources, mainly hydro, solar, wind, and biomass. The hydrography of Nigeria is made up of several rivers as shown in Fig xx and these rivers are themselves parent rivers to many other adjoining streams. This network of water bodies provides huge potential hydro-electric power. The REMP estimated that up to 11250MW and 3500MW of large and small hydro electricity power respectively can be obtained from Nigeria’s hydro resources. However, this potential has been grossly under-utilized because only 1900MW and 64.2 MW of large and small hydro power plants have been installed till date. The southern fringes with the Atlantic Ocean experience up to 3500mm/year of rainfall occurring in over eight months while rainfall in the northern Sahelian region has rainfall sometimes last for only three months yielding 500mm/year. This implies that even though there is high potential for mini hydro electric schemes in the entire country, the most attractive regions for mini hydro power will be Southern region. Figure 2: Major Rivers in Nigeria Source: Author’s adaptation from blank map by RadosÅ‚aw Botev Due to the diverse climatic zones ranging from the mangrove swamps in the South to the Sahel savanna in the North, together with very diverse physical geography, Nigeria’s solar and wind resources vary significantly across different parts of the country. According to the REMP, average solar irradiation is between 4 and 6.5 kWh/m2/day while average wind speed is 2-4m/s at 10m for mainland areas. Till date, only about 15MW of solar installations exist often as solar home services, public lighting, or traffic lights (refs). Geothermal energy resources exist in some part of the country (Kurowska Schoeneich, 2010) identified warm springs in Ikogosi (Ondo State), Wikki (Bauchi State), Ruwan zafi (Gyakan hot spring, Adamawa State), and Akira (Awe local government area, Nassarawa State). However, a techno-economic feasibility and viability study on the potential for geothermal based electricity is yet to be conducted till date. Biomass is perhaps the most used energy form in Nigeria. According to xxx, biomass use consist of xx% of final energy consumption in Nigeria. Xx% of rural areas rely on biomass to meet their cooking needs (expand and consolidate). Biomass accounts for 37% of aggregate energy demand and 95% of rural energy use (REMP, 2005). Biomass is being depleted in some of the northern states due to desert encroachment. Studies have shown that even people with electricity access still really on biomass for cooking (Bhattacharyya, 2012; IEA, 2010). The reliance on biomass for cooking seem to be more cultural than economical Electricity Supply and Demand Publicly distributed electricity generation in Nigeria is dominated by hydro and gas-fired plants with an installed capacity of 1900MW and 6558MW respectively (UNECA, 2011). However, as at the end of 2012, the combine operational capacity of all the generating facilities was below 4600MW (FGN, 2013). There are also cogeneration plants; completed generation projects under the National Integrated Power Projects (NIPPs)[3]; and stranded power from completed IPPs which are yet to be connected to the grid (Eberhard Gratwick, 2012). As a fast-growing economy with a population of over 165 million (World Bank, 2013) and a rising number of middle-class, the demand for electricity in Nigeria far outpaces the effective capacity to supply. Daily data on peak generation and peak demand forecast from May through September, 2014 from the website of the Presidential Task Force on Power Reforms[4] showed that peak generation fluctuate between 3000MW and 4000MW while peak demand is over 12000MW yield ing a supply gap of between 8000MW and 9000MW with resulting frequent sporadic outages in areas that are connected to the grid. Moreover, Nigeria’s generation capacity per capita is relatively low when compared to other developing countries as shown in table xxx while the demand for electricity is constantly increasing. (what is the estimated electricity demand in Nigeria and the projected level of increase? ) The program requires data at different levels – household, community, and national. At the household level, data on household electricity demand profile are required. Since households belong to communities, the summation of the electricity demand of all households in a community forms the electricity demand – and also requires different types of data which may be grouped into five categories. We present below the data requirement and the modeling procedure of the Network Planner Tool. Geospatial data The model requires data on the spatial location (longitude and latitude) of the demand centers. The model also requires data on the coverage of the existing medium voltage in the area where demand centers are located. [1] It is important to mention that in states that have very low population density, there is also much variation in the population densities across the local government areas (LGAs). For example, even though the population density of Taraba State is 54persons/km2, within Taraba, the population density varies from 10 persons/km2 in Gashaka LGA to 713 persons/km2 in Jalingo LGA (2006 Census Report figures) [2] Tenth, if oil sands are included in Canada’s oil reserves. [3] Details of the structure and projects under the NIPP can be found at http://www.nipptransactions.com/ [4] http://www.nigeriapowerreform.org/

Parental Control vs. Guidance in Amy Tans The Joy Luck Club :: Joy Luck Club Essays

Parental Control vs. Guidance in Joy Luck Club      Ã‚  Ã‚  The novel, "Joy Luck Club," by Amy Tan describes the struggle between a dominate mother who tries to protect her daughter, Ni kan, from the devastating losses that she suffered by convincing her that she might become anyone she wants to be. Ni kan resents her mother's control and wishes only to be herself. The author clearly illustrates in this novel that parents cannot control their children's lives; they can only guide them in the right direction and let them make their own decisions.    First of all, Amy Tan shows that Ni kan's mother attempted to dominate and control her daughter's life. The mother does this by telling Ni kan that "'. . . you can be prodigy, too'" (Tan 491) and insisting that she work toward this goal. Ni kan is then sent down a path of endless tests and lessons. These include tests on capitals of the states; multiplying numbers in her head; finding the queen of hearts in a deck of cards; trying to stand on her head without using her hands; predicting the daily temperatures in Los Angeles, New York, and London; and looking at a page from the Bible for three minutes and reporting everything that she remembers (Tan 492).    Although Ni kan quickly loses interest of her mother's dream of being a prodigy, her mother persists. She arranges for Ni kan to take piano lessons. Her mother does not ask her if she wants to play the piano or to explore another art form. She arranges a complete schedule of lessons and practices that take over not only her daughter's physical existence but also dominate Ni kan's thoughts for most of her free time. Her mother wants to control not only her actions but also her dreams and aspirations, and she will not tolerate disobedience. She clearly says that "Only one kind of daughter can live in this house. Obedient daughter" (Tan 497).    Amy Tan shows that Ni kan resents her mother's decisions and resists her control. After many failed tests in knowledge and skills, Ni kan asserts to herself, "I won't let her change me. . ." (Tan 492). This clearly shows a child resisting parental domination and control. The piano lessons evokes a response of "...I felt like I was being sent to hell" (Tan 493).

Breast Cancer Essay -- essays research papers

Breast Cancer: Risk Factors, Detection & Treatment   Ã‚  Ã‚  Ã‚  Ã‚  Among all American women who die when they are between the ages of forty and forty-five, the cause of death most likely to be listed on their death certificates is BREAST CANCER. Breast tumors are responsible for the greatest number of deaths among women, and breast cancer alone is the cause of almost one fifth of all cancer related mortalities. It results in the death of thirty seven thousand American women every year. Currently, there is no concrete answer as to how breast cancer is caused nor is their a cure for the disease. â€Å"Research over the past fifty years has narrowed the causes down to certain risk factors that are common amongst breast cancer patients. The disease can be detected somewhat early if one attends examinations. As for treatment, several methods have come into use, neither of them one hundred percent effective.† (Seltzer, 23)   Ã‚  Ã‚  Ã‚  Ã‚  Ã¢â‚¬Å"The risk factors for breast cancer have been evaluated solely by researching the medical histories of those with the disease.† (Seltzer, 27) They have been assigned a specific order which ranges from greatest risk to the least amount of risk. The risk factors are having a family history of the disease, never bearing children, having a child after the age of thirty, having had a late menopause, age, obesity, and being a Caucasian. These risk factors are not however, totally conclusive. My mother, also being a victim of breast cancer had none of the above listed risk factors, but still developed the sickness. â€Å"Even if none of the risk factors applies to you, you must still be wary and attend regular examinations, because every woman is at risk.† (Subak-Sharpe, 42)   Ã‚  Ã‚  Ã‚  Ã‚  Early detection of breast cancer is the key to surviving the illness. Once the tumor has grown too much, it is often too late. â€Å"Large tumors interact with lymph nodes which interconnect with the breast, facilitating the spreading of the disease, which in almost all cases, leads to certain death.† (Link, 144) There are essentially two methods of detection with breast cancer. They are self examinations as well as Mammography’s. Self examinations are essentially done by women on themselves, feeling the breast while searching for a lump or abnormalities. It is recommended by the American Cancer Association that a ... .... â€Å"Even though some patients illnesses prove resistant, the treatment is forty percent effective.†(Link, 110) Side effects with Radiation therapy are rare but include rib fracture, radiation induced Pneumonia, and Pericardial effusion(fluid around the heart). These side effects are due to the radiations proximity with the lungs, ribs and heart. The alternative to Radiation therapy is Chemotherapy. Chemotherapy involves using drugs in the fight against malignant, or deadly tumors. Pharmaceuticals such as Antimetabolites, Alkalating agents, and Antibiotics. These drugs are basically designed to flow through the body’s circulatory system, and then search for and destroy cancerous cells. Chemotherapy has about the same success rate as radiation therapy.   Ã‚  Ã‚  Ã‚  Ã‚  In conclusion, breast cancer is one of the most deadly cancers known to women around the world. Risk factors show who may be prone to developing the sickness, and as time goes by, more detection and treatment methods are developed. Hopefully one day, a cure can be found to eradicate this, and all cancers, but until that day, women will still have to deal with the detection, and treatment of breast cancer.

Despite several attempts to regulate campaign finance, money increasingly dominates the US electoral process

In recent years the increase in money poured into US elections has created a seemingly money dominated election with some arguing success relies on the highest level of campaign funding. As a result of the Watergate scandal The Federal Election Campaign Act of 1974 attempted to make a number of significant changes. However with the increased regulations there have been increased loopholes and many ways to get around these regulations, many donating large sums of money argue they are not the most important part of the campaign and the significance still lies with the Candidates strength and skills. But as the 2008 and 2012 hugely exceeded the expenditure of any previous election it is clearly to see money is playing an increasingly significant role. FECA of 1974 aimed to reduce candidates’ reliance on few wealthy donors and equalise money spent by the major parties. This law was however weakened by the Supreme #Court in the Buckley v Valeo ruling that limitations on what individuals or PACs could spend infringed the 1st amendment. In a similar case the 2010 Citizens united v FEC decision restrictions on corporations was removed leading to Super PACs. These played a significant role in the fundraising and spending in the 2012 presidential election. Supporters see them as a positive consequence of free speech, however many see that they are yet another outlet for unlimited money in electoral politics. It is evident to see that money is the arguably the most significant part of the election process due. Barack Obama has taken part is the two most expensive elections, with 1. 1 billion being raised by Obama in 2012, raising more than Romney and subsequently won the presidential election. The increasing importance of finance has been shown by Obama’s actions in 2008, when he rejected federal funding in order to avoid restrictions on his spending, aware of the advantage of large fundraising support. Indeed in 2012, neither Romney nor Obama took matching funds and neither did any of Romney’s rivals in the Republican primaries suggesting an end to the era of matching funds. Campaign finance has not been sufficiently regulated; this is partly why it is increasingly dominate in the electoral process. As the campaign increases in length, and the apparent non-stop campaigning of US politics, with the invisible primaries, primaries and mid-term elections it is increasingly essential that candidates receive financial support and the need for bigger and earlier funds to compete in all rounds of the election process. The need to campaign through increasingly expensive TV adverts is ever the more important, as these target a large audience and can be very effective in building up own support or knocking an oppositions support. Money is also the most important factor due to the diversity and size of the American electorate. Many interests need to be targeted and this relies on different angles of campaigning with different emphasises on differing policies for individual groups of the electorate. For example Obama in 2012 gained a significant proportion of Latin voters – a +44% advantage over Romney – and targeted these voters with information about immigration. The need to reach out to such a large demographic of voters further puts strains on the costing of elections. Many states require visits and this insures great travel costs for each of the candidates as they go on election tours and rallys. Obama in 2012 visited 4 states in one day in November – New Hampshire, Florida, Ohio and Colorado. As the elections become ever closer swing states also play a higher significance and winning these states have a higher impact on the outcome of the election, visiting these is of primary importance and more money in advertising is require for these states due to the difference undecided voters can make. As the campaign extends and increases more political advisers are typically hired by candidates, Romney in 2012 had 24 Foreign Policy advisors working with him throughout the campaign. However, although money plays a part in the campaign, especially from an administrative point of view it is not the main deciding factor in a candidate’s success. Despite the spending of Bush in 2004 he would have most likely won despite this funding, and Romney is 2008 was the highest spender in the Republican primaries but was not the eventual winner. The use of the free media by candidates is limited and this requires to be bought supporting the argument of the significance of finance, however commercials can backfire and if the candidate is not a strong candidate with wide support this can cost them an election e. g. Bush and Willie Horton. The influence adverts has shown a higher significance media has rather than money being most dominant. This can be supported by the Presidential TV debates, where verbal errors can be costly and have proved difficult for many candidates for example Mondale in 1984. Elections can be won or loss due to the outcome of these debates, debates often do more to confirm what voters already feel about candidates and can challenge and influence de-aligned voters and can convert passive audiences. However the significance of these can be questioned, very few debates have been controversial or change the course of election events out of 30 debates that have taken place. Media today allows for 24hr news on cable and network TV. Radio, websites, social media and smart phones also play an increasingly role with many crediting Obama’s success among younger voters to the influence of social media. The media set the agenda, amplify debate and frame debates and messages. The role of policy and a candidate’s personal strengths can be said to play the most significant part. Opinions on key issues such as the economy in 2012, views and actions to tackle these key issues are likely to change voters’ minds and capture undecided voters. For example the swing voters play a large impact on deciding who wins an election, many in 2012 believe Obama’s ‘Latin vote advantage’ won him the election over Mitt Romney, and in a Reuters poll 61% of mothers felt the country was on the wrong track favouring their vote against the incumbent president. In conclusion, money does not guarantee electoral success but it is increasingly difficult to win without large funds due to the financial demands of the elongated campaigns and reliance on advertising. It is capturing the vote of most Americans that is most essential and significant in the election, and although this can be easier done with financial backing, finance does not necessarily affect people’s opinions presidential candidates and key issues. But as elections get increasingly expensive the dominance of money may lead to a situation whereby only wealthy candidates are able to mount a successful attempt at winning the presidential election.

An experimental engine

AbstractionAn experimental engine with an electrohydraulic camless valvetrain, capable of entire valve gesture, was foremost conceived by the Ford Research Laboratory. Engine with an electrohydraulic camless system neither uses Cams, nor springs, which reduces engine tallness and weight. Hydraulic force both clears and closes the valves during the valve acceleration possible energy of tight fluid is converted into kinetic energy of valve gesture during slowing the energy of valve gesture is returned to the unstable convalescence of kinetic energy is the key to the low energy ingestion. Rather than open and shut the valves with conventional system camless engine employs an electro-hydraulic actuator mounted above the valves. The usage of electrohydraulic actuators eliminates an figure of expensive high preciseness and heavy constituents for the motor including the Cam shaft, rocker weaponries and springs, cam bearings and support constructions including caps, clocking cogwheel, push rods or in the instance of an overhead Cam engine, the belt or concatenation and miscellaneous cogwheels, and lubrication channels and ports. Because of this characteristics valve gesture has become independent. This permits an optimisation of valve event for each operating status without any via media1. IntroductionThe purpose of all attempts is release from a restraint that has handcuffed public presentation since the birth of Internal -Combustion Engines more than a century ago. The engines powering today ‘s vehicles rely on a system of valves to acknowledge fuel and air to the cylinders and allow the fumes to get away after burning. Revolving steel camshaft with preciseness -machined egg shaped lobes, or Cams are the difficult tooled â€Å" encephalon â€Å" of the system. The bulk of conventional automotive engines operate with a valvemotion fixed to the crankshaft rotary motion through the mechanical linkage of the rocker, pushrod, camshaft, and the timing concatenation. Like a really simple package plan that contains merely one set of direction, the Cam ever open and shut the valves at the same precise minute in each cylinders invariably during the shots. They do so irrespective of whether the engine is tick overing or whirling at soap revolutions per minute. As a consequence, optimal public presentation can be achieved at merely one velocity The clash loss of Cams, dependant and inflexible valve train operation, have oning of Cam its inefficient and noisy operation were some of the Parameters which every 1 has to compromise until a new attack of Camless engine was developed. In recent times, the turning demand to better fuel economic system and cut down harmful fumes emanations forced the engine interior decorators to earnestly see alternate methods of valve operation Camless engine is an engine replaced with a to the full variable camless propulsion system which allows complete control of mass transportation into and out of the engine cylinder.the engine uses actuators, detectors and microprocessors to command the lift of valves harmonizing to runing conditions. it gives programmable flexibleness in commanding the engine events. The system offers a continuously variable and independent control of virtually all parametric quantities of valve gesture control this permits optimisation of valve events for each operating conditions without any via media2. HISTORICAL DEVELOPMENTHistory shows that the thought of a camless internal burning engine has its beginnings every bit early as 1899, when designs of variable valve timing surfaced. It was suggested that independent control of valve propulsion could ensue in increased engine power more late, nevertheless, the focal point of increased power has broadened to include energy nest eggs, pollution decrease , and dependability. Their designs have taken on a assortment of signifiers, from electro-pneumatic to electro-hydraulic These designs are based on electric solenoids opening and shutting either pneumatic or hydraulic valves. The controlled fluid so actuates the engine valves. A comprehensive undertaking utilizing solenoid control of pneumatic actuators was completed in 1991 This research included the development of the actuators, a 16 spot microprocessor for control, and comparative testing between a standard Ford 1.9 litre, spark ignition, port fuel injected four cylinder engine and the same engine modified for camless propulsion.3. CAMSHAFT TECHNOLOGYSince the inception of the car, the internal burning engine has evolved well. However, one invariable has remained throughout the decennaries of ICE development. The camshaft has been the primary agencies of commanding the valve propulsion and timing, and hence, act uponing the overall public presentation of the vehicle. The camshaft is attached to the crankshaft of an ICE and rotates comparative to the rotary motion of the crankshaft. Therefore, as the vehicle increases its speed, the crankshaft must turn more rapidly, and finally the camshaft rotates faster. This dependance on the rotational speed of the crankshaft provides the primary restriction on the usage of camshafts. As the camshaft rotates, Cam lobes, attached to the camshaft, interface with the engine ‘s valves. This interface may take topographic point via a mechanical linkage, but the consequence is, as the Cam rotates it forces the valve unfastened. The spring return closes the valve when the Cam is no longer providing the gap force. Figure 3.2 shows a schematic of a individual valve and Cam on a camshaft.Since the timing of the engine is dependent on the form of the Cam lobes and the rotational speed of the camshaft, applied scientists must do determinations early in the car development procedure that affect the engine ‘s public presentation. The ensuing design represents a via media between fuel efficiency and engine power. Since maximal efficiency and maximal power require alone timing features, the Cam design must compromise between the two extremes. Acknowledging this via media, car makers have been trying to supply vehicles capable of cylinder inactivation, variable valve timing ( VVT ) , or variable camshaft timing ( VCT ) . These new designs are largely mechanical in nature. Although they do supply an increased degree of edification, most are still limited to discrete valve timing alterations over a limited scope.4. ADVANTAGES OF CAMLESS ENGINESElectrohydraulic camless valvetrain offers continuously variable and independent control of all facet of valve gesture. This is important promotion over the conventional mechanical valvetrain. It brings about a system that allows the independent programming of valve lift, valve unfastened continuance and arrangement of the event in the engine rhythm. Therefore making an engine with wholly uncompressed operation to boot, the ECV system is capable of commanding the valve speed, selective valve inactivation and vary activation frequence. It besides offers advantages in packaging. Freedom to optimise all parametric quantities of valve gesture for each operating status without via media. It consequences in better fuel economic system, higher torsion and power, improved idle stableness, lower exhaust emanation. A more elaborate reappraisal of expected betterment associated with optimisation of operation is given belowECV System is holding ability to command the consumption, which reduces the throttling loss. Pumping loss is the major factor doing the comparatively low rhythm efficiency of S.I. engines. Ability to command the consumption valve timing can alter solution. In this instance to cut down the engine burden below the maximal the variable late or early consumption valve shutting to cut down the volume of air in the cylinder at the beginning of compaction. The engine air flow is therefore reduced betterment in low velocity torsion can besides be achieved.To accomplish good rhythm efficiency, most of the burning is taken topographic point in the early phase s of enlargement shot due to utilize of ECV system because of faster burn rate. By detaining the gap of the consumption valve pass the top dead centre ( TDC ) , until the Piston acquires important down stroke velocity, increases the recess air speed & A ; provosts the faster burn rate. So better commixture, leaner air/fuel ratio improves the fuel efficiency & A ; reduces CO emanation.Optimization of valve timing outputs a flatter torsion curve due to betterment in volumetric efficiency. So low velocity torsion & A ; an mean torsion increases over the full sped scope. Engine torsion at high can be increased due to pound bear downing. An electronic control system senses the alterations in the engine velocity & A ; continuously adjusts the valve closing to accomplish the best via media between random-access memory bear downing & A ; compaction ratio at each velocity.With camless operation, a exactly late or early consumption valve shutting can be used to cut down the in-cylinder air co mpaction & A ; prevent knock. This can be good in turbocharged and supercharged engines. A conventional turbocharged engine can use merely a fraction of useable energy contained in its fumes at high velocity. In that a significant portion of fumes gas must short-circuit the turbocharger to forestall inordinate recess air force per unit area and temperature, which could do the engine to strike hard, this is called wastegating The decrease in the volume of air trapped in the cylinder is compensated for by an addition in the recess air force per unit area. So rhythm efficiency improves. Optimize enlargement ratio & A ; internal fumes gas ordinance consequences into the fuel efficiency & A ; decrease in the fumes gases.The effectual enlargement ratio is determined by the timing of the exhaust valve gap. Normally the fumes valve begins to open good in progress of BDC ( bottom dead centre ) to supply adequate clip for the cylinder blow down at high engine velocity. This makes effectual en largement ratio less than it would be if the timing to the BDC. At low velocity nevertheless at that place much more clip for the blow down and the overly early fumes valve gap is uneconomical. With variable exhaust valve clocking this lack can be eliminated by retarding the exhaust valve opening at low velocities and in general optimising the timing as the map of the engine velocity. much faster motion of engine valves in Cam less engine permits the rated of exhaust valve opening even at high velocities, the low velocity gap occur about at BDC. Increased enlargement shot work increases the torsion and particularly at low velocities improves the engine efficiency.Exhaust gas recirculation ( EGR ) straight affect the residuary gas fraction in the cylinder High quality of residuary gas lower the peak burning temperature and therefore reduces the measure of N oxides produced during burning ability to change the timing of exhaust valve shutting eliminated the demand for an external reci rculation.Advancing the fumes valve shutting before the TDC permits to retain the last part of gases go forthing the cylinder, on the other manus the fumes valve gap is well retarded a certain measure of fumes gas is sucked backed into the cylinder from the fumes port by downward traveling the Piston on its early portion of the consumption shot in. Therefore changing the timing of closing controls the measure of residuary gas in the cylinder.In camless engines with a variable valve lift & A ; lift of both recess & A ; exhaust valves can be reduced with the ryduction in engine velocity. Since the energy consumed by the valvetrain goes with the decrease in the valve shot, changing the valve lift as map of the engine velocity can better fuel efficiency at lower velocity.Speed of the recess air is increased which leads to faster burn rate. In camless engines holding two-inlet valves independent fluctuation of lift of each consumption valve varies the distribution of the air flow among t he valves. This provides the elusive agencies of polishing the air flow in the cylinder. Exhaust choking can be achieved by cut downing the fumes valve lift.Ability to tune the valve convergence every bit good as valve lift offers an chance to take down idle velocity & A ; therefore achieve a important decrease in fuel ingestion. Volumetric efficiency is improved hence variable valve speed can be achieved irrespective of the velocity of crankshaft. Significant sum of energy can be saved.Deactivating some of the engine cylinders forces the staying cylinders to run at higher burden to keep the given engine end product. The higher burden reduces specific fuel ingestion. The camless engine control system can selectively deactivate any brace ( recess or fumes ) of hydraulicly coupled valves at any clip by merely disrupting the electric signals to the several control solenoids. This besides applies to fuel injectors, inactivation of valve and fuel injector selectively deactivate single cy linder Deactivation of some of the engine cylinders leads to important betterment in fuel economic system and hydrocarbon emanationCamless system can deactivate valves & A ; cylinders for period every bit short as one rhythm. Ability to selectively jump single fire can be used to better fuel ingestion & A ; exhaust emanations during portion burden operation.Camless engines can supply a really effectual dynamic backup of the vehicle. This can be done via combination increased activation frequence valve inactivation. To execute dynamic endorsing the fumes valves & A ; the fuel injectors are deactivated while consumption valves are opened during each down shot of the Piston. When the consumption valve opens, a blow down of the compressed back into the consumption manifold takes topographic point. Alternatively of being dumped into the ambiance, the tight air can be pumped into a reservoir & A ; so used for engine boosting during vehicle acceleration. This provides regenerative backup, which improves fuel economic system.Camless valve train eliminates the demand for many mechanical constituents, such as camshafts, sprockets, bearings, tappets, springs, etc, which take up a batch of infinite on the top of the cylinder caput. As a consequence, the tallness & A ; the weight can be lower than those of comparable engines with cam-driven valves. There is no such limitation in the camless engines, each valve can busy any place in the cylinder caput, and this creates extra design chances for spacing the valves about the burning chamber.5. Working OF CAMLESS VALVETRAIN:5.1 Hydraulic pendulum: –The Electro hydraulic Camless Valve train ( ECV ) provides continuously variable control of engine valve timing, lift & A ; speed. It uses neither Cam on spring. It exploits the elastic belongingss of a tight hydraulic fluid, which moving as a liquid spring, accelerates & A ; decelerates each engine valve during it ‘s opening & A ; shutting gestures. This is the rule of the hydraulic pendulum. Like a mechanical pendulum, the hydraulic pendulum involves transition of possible energy into kinetic energy & A ; so back into possible energy with minimal energy loss. During acceleration, the energy of the valve gesture is returned to the fluid. This takes topographic point both during valve gap & A ; shutting. Convalescence of kinetic energy is the key to the low energy ingestion of this system. The figure 5.1 shows the hydraulic pendulum construct. The system incorporates high & amp ; low-pressure reservoirs. A little dual acting-piston is fixed to the top of the engine valve that rides in the arm. The volume above the Piston can be connected either to the high or to the low-pressure beginning. The force per unit area country above the Piston is significantly larger than the force per unit area country below the Piston. A hard-hitting solenoid valve that is unfastened during the engine valve acceleration & A ; stopping points during slowing controls the engine valve gap. Opening & A ; shutting of a low-pressure solenoid valve controls the valve shutting. The system besides includes high & amp ; low-pressure cheque valves. During the valve gap, the high-pressure solenoid valve is unfastened, & A ; the net force per unit area force forcing on the dual moving Piston accelerates the engine valve downwards. When the solenoid valve stopping points, force per unit area above the Piston drops, & A ; the Piston decelerates forcing the fluid from the lower volume back into the hard-hitting reservoir. Low-pressure fluid fluxing through the low-pressure cheque valve fills the volume above the Piston during slowing. When the downward gesture of the valve stops, the cheque valve closes & A ; the engine valve remains locked in unfastened place. The procedure of the shutting is similar in rule to that of valve gap. The low-pressure solenoid valve opens, the force per unit area above the Piston drops to the degree in the low-pressure reservoir, & A ; the net force per unit area force moving on the Piston accelerates the engine valve upwards. Then the solenoid valve stopping points, force per unit area above the Piston rises, & A ; the Piston decelerates forcing the fluid from the volume above it through the hard-hitting cheque valve back into the hard-hitting reservoir. The hydraulic pendulum is a spring less system figure 5.2 shows idealized graphs of acceleration, speed & A ; valve raise versus clip for the hydraulic pendulum system. The valves move with changeless acceleration & A ; slowing due to absence of springs. This permits to execute the needed valve gesture with much smaller net drive force, than in systems, which use springs. In spring lupus erythematosus system the engine valve is the lone traveling mass. to minimise the changeless drive force in the hydraulic pendulum the gap & A ; shutting accelerations & A ; slowing must be equal. To accomplish a symmetric hydraulic pendulum following relationship must be maintained between the valve geometry & A ; the forces moving on the valve.6. VALVE OPENING & A ; ShuttingThe valve gap & A ; shutting is the six-step procedure, & A ; in each measure an analogy to mechanical pendulum is shown. In measure 1 the gap ( high-pressure ) solenoid valve is opened, the high-pressure fluid enters the volume above the Piston. The force per unit area above & A ; below the Piston become equal, but because of the difference in the force per unit area countries, the changeless net hydraulic force is directed downwards. it opens the valve & A ; accelerates it in the way of the gap. The other solenoid valve & A ; the two cheque valves remain closed. In measure 2 the gap solenoid valve closes & A ; the force per unit area above the Piston drops, but the engine valve continues its downward motion due to its impulse. The low-pressure valve opens & A ; the volume above the Piston is filled with the low-pressure fluid. The downward gesture of the Piston pumps the hard-hitting fluid from the volume below the Piston back into the hard-hitting rail. This recovers the some of the energy cheapness was antecedently spent to speed up the valve. The ratio of the high & As ; low force per unit area is selected so, that the net force per unit area force is directed upwards the valve decelerates until it exhausts its kinetic energy & A ; its gesture Michigans. In measure 3 at this point the gap cheque valve closes & A ; the fluid above the Piston is trapped. This prevents the return gesture of the Piston, the engine valve remains fixed in its unfastened place trapped by hydraulic force per unit area on the both sides of the Piston. This is called as unfastened dwell place. In measure 4 valve shutting begins. The shutting ( low-pressure ) solenoid valve opens & A ; connects the volume above the Piston with low-pressure rail. The net force per unit area force is directed upward & A ; the engine valve accelerates in the way of shutting, pumping the fluid from the upper volume back into the low-pressure reservoir. The other solenoid valve & A ; the other two cheque valves remain closed during acceleration. In measure 5 the shutting solenoid valve closes & A ; the upper volume is disconnected from the low-pressure rail, but the engine valve continues its upward gesture due to its impulse. Rising force per unit area in the upper volume opens the hard-hitting cheque valve that connects this volume with the high-pressure reservoir. The upward gesture of the wall Piston pumps the fluid from the volume above the Piston into the hard-hitting reservoir. While the. increasing volume below the Piston is filled with the fluid from same reservoir. Since the alteration in volume below the Piston, the net flow of the fluid is into the hard-hitting reservoir. Again as it as the instance during the valve opening energy recovery takes topographic point. Therefore in this system the energy recovery takes topographic point twice each valve event. When the valve exhausts its kinetic energy its gesture Michigans, & A ; the cheque valve stopping points. Ideally this should ever co-occur with the valve sitin g on its place. This is nevertheless hard to accomplish. A more practical solution is to convey the valve to a complete halt a fraction of millimetres before it reaches the wall place & A ; so briefly open the shutting solenoid valve once more. This once more connects the upper volume with the low-pressure reservoir & A ; the high force per unit area in the lower volume brings the valve to its to the full closed status. Measure 6 illustrates the valve seating. After that the, shuting solenoid valve is deactivated once more. For the remainder of the rhythm both solenoid valves & A ; both check valves are closed, the force per unit area above the valve Piston is equal to the force per unit area in To heighten the ability of changing intake air gesture inside the cylinder unequal valve lift of the two consumption valves is used. This besides facilitates shutting of one valve while other remains unfastened. This can besides be done in instance of two exhaust valves. The lift qualifier is used to curtail the gap of one of the mated valves. The conventional representation of the lift qualifier is as shown in the figure 6.7 The qualifier is really a rotatable rod with its axis perpendicular to the plane of paper. It is installed in the cylinder caput between the two intake valves.The communicating chamber is connected to the high-pressure reservoir. As shown in instance A when the qualifier is in the impersonal place, both valves operate in unison. In the instance B the qualifier is turned through 90 & A ; deg ; clockwise senses. In instance C the lift of one of the valve is reduced comparative to other.7. Operation OF SYSTEMIn camless engine the control of valve train is done by microprocessors such as Phillips 80C552 microprocessor constructed on a wire wrap board along with the needed interfacing circuitry. The detectors sense the status of the engine and give end product signal to the microprocessor which gives feedback signal to the actuators which controls the lift of the valves so that coveted public presentation is obtained7.1 Microprocessor: –Using a Philips 80C553 microprocessor based on the Intel 8051 architecture. Provide high velocity end products RS232 communications, multiplexed parallel IO High velocity timers and counters, two external interrupts, four registry Bankss for fast interrupt handling. The processor has to take several existent clip inputs and bring forth a figure of end products.Input signals are:Single pulsation for every revolution of the crankshaftSingle pulsation for every grade of revolution of the crankshaftEnd products:Signal for commanding the solenoid valve to open and shut the recess.Signal for commanding the solenoid valve to open and shut the fumes.Signal to command the ignition timing7.2 Detectors: –Crank Angle Sensor / Single Revolution Sensor Is the most critical feedback constituent in the system. It measures the crankshaft angle and supplies it to the micro accountant to decrypt the place of the crankshaft. Two separate trigger mechanisms. Therefore two end products. One signal for a individual cylinder revolution and another signal for every grade of the crankshaft rotary motion. ( 360 slots in the trigger disc ) The detector consists of a twosome of optical pick-up LEDs that decode the slot signals into a 0-5 V square wave type signal. They count the figure of revolutions that occur in a given sum of clip to mensurate the revolutions per minute. Magnetic manner pickups are much more dependable than optical manner pickups. The grouch angle detector is used to mensurate the engine velocity, ignition angle, convergence, and recess valve unfastened angle. An inverting Schmitt trigger for faster borders shapes the end product pulse wave form. The lambda detector is utile in tunning the overlap period. The lambda detector reading gives a utile indicant if the fumes valve closed excessively late in the period of convergence, therefore leting unburnt fuel to get away. Less O fluxing through the exhaust manifold additions fuel efficiency and creates less pollution. A thermal resistor was used to mensurate the engine temperature. A thermal resistor is a temperature dependent resistance. To mensurate the throttle place a potentiometer was used in a electromotive force splitter constellation.7.3 I/O Interface: –Two informations acquisition cards have been designed utilizing 82C55 programmable peripheral interface IC ‘s. Each card is connected to the computing machine ISA port and has three bi-directional 8bit ports. Address decryption is done through a brace of 74LS138 decipherers. The I/O base reference can be in the scope 300-31CH merely by turning on one of the eight dipswitches. Along with the 3 8bit ports there is a connexion to the Personal computer ‘s +5V, +12V and land tracks. Reading and composing informations to and from the ports is done through C++ _inp ( ) and _out ( ) maps. The chief purpose of the V.V.T. Engine Management System package plan is to expose and log engine parametric quantities for all right tunings an engine. The engine measurings are taken by a assortment of detectors and interfaced to a computing machine through hardware. The package is written in Visual Basic and Visual C++ . Ocular Basic does non hold its ain input/output port read/write maps, where as C++ does, hence the reading and composing maps are written in C++ and compiled into a DLL with Visual C++ . These maps can be called from any Visual Basic application. A Dynamic Link Library ( DLL ) is a library of maps able to be called by an application at runtime. The application and maps within the DLL are non bound until the application plan is executed. Ocular Basic tonss DLLs when the signifier that contains their Declare statement is loaded. By utilizing a assorted linguistic communication theoretical account both Visual Basic and C++ are used for their strengths. C++ is used to execute port I/O port communications and Visual Basic for its ability to acquire a user interface available for requirement proving rapidly.8. Design APPROCHThe camless engine is designed on the footing of conventional four cylinders, four-valve engine. Here head holding to the full integrated camless valve train assembly replaces original cylinder caput incorporating conventional valves, camshafts, springs. A belt driven hydraulic pump is added in topographic point of camshaft. As there is no demand of lubrication entree for engine oil from engine block is closed.8.1 Head: –It is aluminum casted. The casting is accomplished by all hydraulic transitions linking the system constituents. High and low force per unit area reservoirs are integrated in the caput. The Hydraulic fluid is wholly separate from engine oil system. Fluid force per unit area is maintained at deliberate value of 9Mpa. Besides at lower degree it is supplemented with engine coolant. The engine valves are buried wholly in cylinder caput. The solenoid valves are kept on top of caput. All the connexions of Hydraulic pump and Electric accountant are at the back terminal of cylinder caput. Two transverse subdivisions of the cylinder caput are shown in the figure. 8.1.1 and 8.1.28.2 Components8.2.1 Engine Valve: –Here the valve Piston is attached to the top of the valve. Both the valve and Piston are able to skid inside a arm. Sleeve gaps are provided above and below the valve Piston leting hydraulic fluid into consumption or exhaust port. There is tight hydraulic clearance provided between the valve and the arm. But the clearance between arm and cylinder caput is comparatively big. This agreement improves the focus of the valve in its place. The valve is subjected merely to axial tonss. This reduces stresses ; clash and wear. Hydraulic fluid circulated through the Chamberss lubricates and cools the engine.8.2.2 Solenoid Valve: –The solenoid valve has conically shaped magnetic poles. This reduces the air spread at a given shot. The usually closed valve is hydraulicly balanced. A strong spring is required to obtain speedy shutting clip and to cut down escap es between activations. Faster the solenoid valve closing, better the energy recovery. Highest energy losingss occur while shutting of high or low-pressure solenoid valve, as it occurs at highest Piston speed. The valve lift and the place diameter are selected so as to minimise the hydraulic losingss with a big volume of fluid delivered during each gap. Both high force per unit area & A ; low-pressure valves are of same design. fig 8.2.2 shows c/s of the valve8.3 HYDRAULIC SYSTEM8.3.1 High Pressure Pump: –Ability to fit the measure of fluid delivered by the high force per unit area pump with the existent demands of the system at assorted engine velocities and tonss is critical in guaranting low energy ingestion. To conserve mechanical energy needed to drive the pump, its hydraulic end product should be closest to the need.The pump used has a individual bizarre driven speculator and a individual usually unfastened solenoid valve. During each down shot of the speculator barrel is filled with fluid from low-pressure side of the system. Similarly during upstroke of the speculator fluid is pushed back into the low-pressure subdivision every bit long as solenoid valve is unfastened. Closing the solenoid valve causes plunger to pump the fluid through the cheque valve into hard-hitting side of the system. Hence fluctuation in solenoid electromotive force pulse causes fluctuation in measure of high force per unit area fluid delivered by the pump during each revolution.8.3.2 Low Pressure Pump: –A little electrically goaded pump picks up the oil from the sump and delivers it to the recess of the chief pump. Merely a little measure of oil is required to counterbalance for escape loss, and to keep equal recess force per unit area for the chief pump. If any extra oil is pumped it returns to the sump through a low-pressure regulator. A cheque valve assures that recess is non subjected to any fluctuations in force per unit area that may8.4 Cool Down Accumulator: –The system is supplemented with a cool down collector, which functions to keep force per unit area of the system in changing conditions. During normal running status it is to the full charged with oil under same force per unit area as in the recess to the chief pump. When engine stops running, the oil in both subdivisions starts chilling and shriveling. As the system force per unit area drops collector discharges oil into the system, therefore counterbalancing the shrinking and forestalling formation of pockets of oil bluess. Hard-hitting pump is connected to the collector via cheque valve, while the low force per unit area pump is through an opening. After the oil in the system is cooled off, collector maintains the system at atmospheric force per unit area by continuously refilling oil that easy leaks of through the leak-off transition. Accumulator recharges every clip engine is restarted. If engine is off for a long clip collector will dispatch wholly. Hence force per unit area will drop below acceptable, leting force per unit area detector to reactivate pump for a short clip to reload the collector. Use of high hydraulic force per unit area in the system satisfies the demand of maintaining bulk modulus of oil high. In a closed cringle system like this, the force per unit area in low-pressure reservoir can besides be quiet high. Hence the system can run with really high hydraulic force per unit area and still the energy ingestion is in mean scope due to low-pressure derived function.9. FUTURE PlansFuture plans include go oning to polish the engineering for paradigm camless CIDI engines driven by an electronically controlled camless valvetrain:Polish the system and constituent design for higher efficiency and consistenceDesign for three different types of unstable media: hydraulic fluid/engine oil, Diesel fuel, and antifreeze coolantDevelop electronic control algorithms, package, and hardware for valve timing, lift, soft seating, and shutting controlIntegrate the variable valve timing system with little CIDI enginesCharacterize public presentation envelope, energy ingestion, open- and closed-loop repeatability, and sensitiveness to environmental conditions of the camless valvetrain system through both simulation and experimentTest camless valvetrain under assorted engine operation conditionsUpdate dynamic theoretical accounts and simulation of the camless valvetrainDevelop a system and command dynamic theoretical account of CIDI engines and look into the control constellations and schemes by utilizing the proposed actuating system10. DecisionFor the camless operation electrohydraulic valve train is used which control valve timing, lift, speed.Electrohydraulic valve train is built-in with the cylinder caput, which lowers the caput tallness and improves packaging.The system employs the hydraulic pendulum, which contributes low ingestion of energy.Reappraisal of the benefits expected from a camless engine points to significant betterments in public presentation, fuel economic system and emanation over and above what is engines with camshaft based valve trainREF ERANCESâ€Å" Mold of an Electromechanical Valve Actuator for a camless engine, † Yan wang.Higgins Amy, â€Å" Camless Engines Give ‘Peak ‘ Performance, † Machine Design, October 2000, pg. 72.C.Gray â€Å" A Review Of Variable Engine Valve Timing † , SAE paper 880386Variable Valve timing system for Camless Engine Operation, university of Illinois/ University of California, Los Angles.hypertext transfer protocol: //www.dieselnet.com/news/0004navistar.htmlhypertext transfer protocol: //www.engineering.ucsb.edu/~ywang/research.htmhypertext transfer protocol: //www.autospeed.com/cms/A_0910/article.htmlhypertext transfer protocol: //www.greendieseltechnology.com/news13.htmlhypertext transfer protocol: //www.engineering.ucsb.edu/~mdsymp/ppt/stefanop.pdfhypertext transfer protocol: //www.myresearch.htmhypertext transfer protocol: //www.siemens.de/athypertext transfer protocol: // www.highwaystarmagazine.com