Olympic Controversies :: Political Politics

Olympic Controversies The most important thing at the Olympic Games is not to win, but to take part, just as the important thing about life is not to conquer but to struggle well. The words spoken by Pierre de Coubertin, father of the Modern Summer Olympic Games. Baron Pierre de Coubertin may have intended for the new Olympic Games 'to be a period of concord in which all differences of status, religion, politics and race would be forgotten' but unfortunately as the Games have progressed, so too have the political overtones associated with them. Baron Pierre de Coubertin, by reviving the ancient Olympic Games hoped that competition in sports would 'lead to a new international friendship and better cooperation amongst the nations, whilst also allowing athletes to be exposed to different values than those of their own.' It is with misfortune that the Olympic Games have taken an unexpected turn and are used time and time again as another measurement for the ultimate victory, the ultimate dominance, the ultimate triumph on the world stage. In the commotion of the promotion of the Olympic Games, it is often forgotten that the original principles of the games included that individuals were to be contested against one another, and that countries played no part. In fact, in the first Olympiads, there were no formal teams of nations, rather an assortment of individuals who came to Athens on their own expense for their own purposes. As the Olympic Games progressed, it became more and more apparent for participating nations that it was an excellent opportunity to promote their country. Perhaps it has something to do with the fact that the Olympic Games is relayed to countries all over the world, exposing it onto a world audience. Even before technological advances of television, the Olympic Games were used by the countries to elevate themselves amongst one another. Even in the first Olympiad of 1896 in Athens, the realisation of the chance or promotion was evident, the Greek royal family of George I 'used the games as a device to build its power.' In addition, when television was initially introduced, the prospect of exposure was heightened. Although television was first used to transmit images from one country to another in the Summer Olympic Games of 1960 in Rome, it was further intensified in 1964 in Tokyo. The mayor of Tokyo announced that "without the Olympics, Japan would not have risen to its high position so fast.

Jealousy in William Shakespeares Othello Essay examples -- Othello Sh

Shakespeare has an exceptional ability to compose plays full of deceit, trickery, murderous revenge, and jealousy. In Othello, one of his most recognized tragedies was consistently evolving around the central theme of jealousy. Jealousy in Othello is what the play was founded on. One of Shakespeare's most credible characteristics in his writing is his ability to compose a play in which has a story that originates, and strides on lies. As theses lies were unraveled the central theme of his play became distinct, and clearly visible. The central theme was based on the acts that characters had taken based on their jealous feelings. The flaws within all of the characters lied within their blindness to over look Iago's lies. What made each character jealous, was what they perceived as the truth. What adds to this great tragedy is that it is a love story as well. In which a man, Othello, loves Desdemona excessively and passionately, however he loves her unwisely. Love consumes all those who take part in it, and in Othello's case his flaws lie in his loving Desdemona so blindly. It is for that single reason that Iago knows that such a naà ¯ve man as Othello, who loves his wife so blindly and unrealistically, can be made to think whatever Iago wants Othello to believe. Just as Othello's flaws lied within his inability to see past his jealous feelings, so did most of the rest of characters, no matter what social ranking they were classified in. Even from the well-developed characters, such as Othello, to the lesser figures, such as Roderigo, envy and lust were feelings all of Shakespeare's characters were accountable of holding at one time or other in the play. Within each of the characters in Othello was a level of jealousy, which Iago c... ...o seek revenge, in the most gruesome way possible. All through Iago's manipulation to distort reality, is an intricate way to cause the vengeful Othello to take total control of the trustworthy, reliable, and faithful officer as well as husband named Othello Othello is a tragedy of numerous dimensions. The most dominant issues in Shakespeare's Othello are evil and jealousy. From these two dominant issues, it can be said that with the act of evil, beyond it to some degree, envy or jealousy can be held responsible. Jealousy of course is harming to oneself and most times is irrational. Demonstrating once again the "intrinsic instability of evil, the ultimate impotence of the jealous gods." (Godfrey D.R., Shakespeare for Students, pp.422)

Market Control: Boeing

Boeing is no doubt a market leader in the aircraft manufacturing industry with heavy presence in virtually all continents.   This places Boeing in a better place in the market control due to its ability and potential to influence aircraft prices.   Although market control for Boeing has not been that easy considering the stiff competition from competitors such as Airbus, mostly it is Boeing which evidently exerts a great deal of influence on the price of aircrafts. As a result, Boeing has been able to combine cutting edge technology with its market position to its advantage. Although aircraft-manufacturing industry has considerably many players, few have a global presence and can significantly have an input in the market control.   Boeing happens to be among the few players who influence prices. The fact that there are relatively more buyers of aircrafts than there are sellers especially of heavy and fighter airplanes means that the sellers can easily exert market control.   Considering this imbalance between strength of buyers and the control of the manufacturers, Boeing has come up as a market power.   The ability of Boeing in market control is not only evident in price control, but in innovation of new and modern products such as; custom made accommodation in the aircrafts especially targeting the business and tourist segment of market. Evidence of market control of Boeing is seen in the positively sloped supply curve which has characterized the market prices for Boeing’s products in the past decade.   Market control has had an effect on Boeing especially considering that, all of the functions of management such as planning; organizing, coordinating and controlling are pegged on market performance.   Market control has seen profits for Boeing stabilize which means the management of Boeing can strategically plan for expansion programs and other programs with certainty. With market control, it is easier to estimate sales volume with certainty, and therefore planning for staff needs becomes easy for Boeing as well as the organization of Boeing’s organizational structures.   It becomes easier for the management of Boeing to control its internal processes as well as its external process due to its market control ability.   Market control has made it possible for Boeing to source and maintain highly motivated staff due to the fact that Boeing has been able to maximize profits. The market control especially on aircraft prices by Boeing portents the danger of pushing small competitors out of business. As a result of market control by Boeing, there lacks perfect control as Boeing together with a few other industry big players continue to drive small firms out of business and therefore denying the buyers the freedom of choice as well as the satisfaction that comes with the freedom of choice.   Market control has resulted into a near monopoly situation in the aircraft manufacturing industry although in actual sense, Boeing’s environment is oligopoly. Market control by Boeing has resulted into a situation whereby, due to lack of many potential substitutes, Boeing continues to exert influence in pricing, making its prices some of the most exorbitant in the market.   On the other hand, market control has seen Boeing grow into a very profitable organization therefore creating benefits to the society by providing job opportunities as well as by engaging in sponsorship programs in the society. As a result of the market control mechanism employed by Boeing, decision-making process has become easy, as delegation is possible.   Market control mechanisms at Boeing has made it possible for the management at Boeing to execute its organizing, planning, coordinating and controlling functions easily as the market is friendly, less turbulent and predictable.   Despite the sustained competition from Airbus, Boeing still commands market control and it should be able to regain some of the market share it has lost to Airbus in the past few years. Reference http://www.iht.com/articles/2005/01/13/aribus_ed3._.php Accessed on 8/4/2007. www.tau.ac.il/~razin/Airbus%20versus%20Boeing%20revisited.doc Accessed on 8/4/2007.      

Children after the separation Essay

Further his studies of the effects of war on children who were separated from their mothers at an early age was considered to be research done in a crisis situation. Critics argue under these circumstances it would be impossible to conclude how the same children would have reacted out of a war time environment. It was also argued that Bowlby failed to take account in his studies what had happened to the children after the separation. Bowlby was influenced greatly by James Robertson’s research on the effects of separation on mother and child through hospitalisation. Robertson’s studied children between six months and three years of age who were separated from their mothers due to hospitalisation. Robertson claimed to have established a sequence of behaviour that all children would pass through. This sequence consisted of distress, were children behaved in a disturbed manner. Despair whereby the child seems to lose hope of finding there lost parent. Lastly, the child display detachment type behaviour, refusing anyone to become involved with them. Robertson concluded that separation from their mother was harmful. In 1971 Klein and Stern studied why parents abuse their children. They found evidence in their studies that a high percentage of abused children had been born prematurely. Because these children were put into an incubator and separated from their parents an attachment was unable to develop, resulting in later abuse toward the children. The study concluded that there is a crucial period when attachments not formed adequately would not be able to be re-formed. This is of considerable importance to social work in relation to the modern day understanding of child abuse as further research has shown that many abusers were once abused themselves. Klaus & Kennell (1976) two paediatricians put forward the theory that they too believed there was a critical period when attachment took place, this was immediately after birth, when the mother was physiologically pre-disposed to bond with her infant. It was during this time that the strength of the attachment was determined.  The American National Center for Clinical Programs supports Bowlby’s notion of ‘motherlove’. They propose that a parent who realises they are going to have a long-term relationship with their child will put more into the caregiving and interaction, as opposed to a substitute care giver who may not be so motivated as they see many children come and go and therefore do not build up a caring relationship with children. This idea has implications for fostering as a consequence may be lack of care or favouritism towards other children in their care. John & Elisabeth Newson (1986) point out that one function of a parent is to act as a memory store for the children to play back and compare experiences. Children in a care setting without a key adult with whom they have a close relationship with will be unable to build upon past experiences and this may have an impact on their emotional development.  Many studies have looked at whether attachment is instinctive, as Bowlby had believed. Konrad Lorenz (1935) agreed that attachment was instinctive when he put forward his imprinting theory. His observations revealed that newly hatched goslings follow the first thing they saw, this could be a human or other object and there was a brief critical period early in the goslings life when this would occur and was found to be irreversible. Lorenz’s believed this was biological, a factor of evolution that ensures the young of all species are able to attach to someone for survival, and was relevant to the way humans form attachments in relation to it being an instinctive behaviour. Critics of his theory (Sluckin 1961 and Bateson 1964) have shown that if a young bird is kept isolated it stays unimprinted beyond Lorenz’s ‘critical period’ and imprinting can take place after the critical period has passed. This casts doubt on Lorenz’s claim that imprinting processes are instinctive. Many researchers now believe that imprinting is actually a process of rapid learning (MacFarlane 1975) In contrast to the theory that attachment is instinctive Colin Turnbull and Margaret Mead when studying families in various African tribes concluded that they saw no signs of instinctive love or affection between parents and children. It was quite normal for many children to be left to fend for themselves; many were even killed as they were thought of as burdens by their parents. The researchers came to believe attachment to be a learnt process that we internalise from observing our own mother’s behaviour, and if not learnt properly for example through illness or as in the tribes case through a different set of family norms and lifestyles, then no bonding or emotional attachment can occur. In New York in 1943 Goldfarb conducted a study of orphans. Two groups of fifteen orphans were matched for age, sex and social background of their parents. The orphans of group A had been fostered before nine months old. The orphans in group B had spent at least their first three years in an orphanage before they were fostered. Goldfarb visited each child at ages three, six, eight and twelve years and measured their development with regard to intelligence, language skills, social maturity and their ability to form relationships. Goldfarb found that every child in group A did better than those in group B leading to the conclusion that a ‘normal’ family home is crucial to emotional and cognitive development. Critics of this study argue that the children may not have had the same intelligence to begin with and that the children in Group B did not have the stimulation of a family for as long a period as those children in Group A. Harlow & Zimmerman conducted studies on a group of rhesus monkeys. Their studies consisted of isolating young monkeys for three months, six months or twelve months. The researchers concluded that the behaviour of the monkeys who had been isolated for twelve months was proportionately worse than those who had been isolated for three months. The behaviour of all the monkeys who had suffered isolation was seen to be disturbed. The same researchers also placed monkeys in a cage with surrogate mothers, a doll made of wire with a feeding bottle and a doll made of wood and towelling without a feeding bottle. The monkeys spent equal amounts of time with each ‘surrogate mother’. The studies showed that the monkeys preferred to cling to the towelling doll even if it meant they did not have a feeding bottle. This led the researchers to believe that warm contact is of critical importance as a need for the monkeys and leads to affectionate responses. Critics of both these studies question the relevance of animal studies to human behaviour. Bowlby’s influential theory managed to link together the evolutionary focus of adaptation with the psychodynamic and behavioural importance of social relationships during infancy and childhood. (Hollin 95)  A measure of its influence can be gained from the action of the World Health Organisation in 1955 stating that â€Å"Permanent damage can be done to the emotional health of babies and children when put into nurseries or sent to child-minders.† The WHO report had many consequences and resulted in lots of practices regarding child care and children’s needs being changed. Women were encouraged to stay at home and were made to feel guilty and bad mothers if the went out to work. (Which suited the government at the time, as they needed these vacated jobs for men) Family Allowance payments were also introduced as a further inducement to keep women from going out to work  Maternity wards encouraged siblings to stay with their mother, whilst children’s wards encouraged mothers to stay.  A main influence on social work practice was the idea that ‘ a bad home is better that the best institution’ which resulted in less fostering and removal of children from poor if not dangerous situations at home. Bowlby’s findings were influential but controversial and became the starting point for further studies. Some studies began to disagree with Bowlby, Fraiberg in 1974 argued that it was possible to strengthen an attachment; Parents of blind children who did not experience eye contact with their infant felt rejected and consequently were unable to develop a strong attachment to their children. When taught to interpret their child’s hand movements, it was found the bond could be strengthened. Interaction was thought to be the important element in developing the attachment.

Engine powered by liquid hydrogen

Wide Range of Flammability:In comparing with all other fuels, Hydrogen has a really broad scope of flammability. Hence, Hydrogen can be combusted in an internal burning engine over a broad scope of fuel-air mixtures. One of the important advantages of this is that Hydrogen fuel can run a really thin mixture. A thin mixture is one in which the sum of fuel is less than the theoretical, stoichiometric or chemically ideal sum needed for burning with a given sum of air. This is why it is reasonably easy to acquire an engine to get down on H. In general, fuel economic system is greater and the burning reaction is more complete when a vehicle is run on a thin mixture. Besides, the concluding burning temperature is lower hence cut downing the sum of pollutants, such as N oxides, emitted in the fumes. However, there is a bound to how thin the engine can be run, as thin operation can significantly cut down the power end product due to a decrease in the volumetric heating value of the air/fuel mixtureLow Ignition Energy:Ignition energy is the energy needed to light a fuel. Hydrogen has really low ignition energy. The sum of energy needed to light H is about one order of magnitude less than that required for gasolene. The feature of low Ignition energy enables hydrogen engines to light thin mixtures and besides ensures prompt ignition. Unfortunately, the low ignition energy besides carries the hazard that hot gases and hot musca volitanss on the cylinder can function as beginnings of ignition and hence making jobs such as premature ignition and flashback. Preventing the above mentioned jobs is one of the jobs associated with runing an engine on H. The broad flammability scope of H agencies that about any mixture can be ignited by a hot topographic point.Small Quenching Distance:Hydrogen has a little extinction distance, even smaller than that of gasolene. Hence, it ‘s more hard to slake a H fire than a gasolene fire. The inclination for blowback additions as a consequence of smaller extinction distance, since the fire from a hydrogen-air mixture more readily passes a about closed consumption valve, than a hydrocarbon-air fire.High Auto-Ignition Temperature:Hydrogen has a comparatively high auto-ignition temperature. This characteristic is of import because the hydrogen-air mixture has to be compressed and the refore plays an of import function in finding the compaction ratio that an engine can utilize, since the temperature rise during compaction is related to the compaction ratio. The temperature should non transcend the auto-ignition temperature, as this would do a premature ignition. Hence, the absolute concluding temperature controls the compaction ratio. The high car ignition temperature of H allows larger compaction ratios to be used in a H engine than in a hydrocarbon engine. On the other manus, H is hard to light in a compaction ignition or Diesel constellation, because the temperatures needed for those types of ignition are comparatively high.High Flame SpeedHydrogen has high fire velocity at stoichiometric ratios. Under these conditions, the H fire velocity is about an order of magnitude higher ( faster ) than that of gasolene. This means that H engines can more closely approach the thermodynamically ideal engine rhythm. At leaner mixtures, nevertheless, the fire speed decreases significantly.High DiffusivityHydrogen has really high diffusivity. This ability to scatter in air is well greater than gasolene and is advantageous for two chief grounds. Fir st, it facilitates the formation of a unvarying mixture of fuel and air. Second, if a H leak develops, the H disperses quickly. Therefore, insecure conditions can either be avoided or minimized.Low DensityHydrogen has really low denseness. This consequences in two jobs when used in an internal burning engine. First, a really big volume is necessary to hive away adequate H to give a vehicle an equal drive scope. Second, the energy denseness of a hydrogen-air mixture, and therefore the power end product, is reduced.Fuel Delivery SystemsHydrogen fuel bringing system can be broken down into three chief types:Cardinal injection ( or â€Å"carburetted† )Port injectionDirect injectionCentral and port fuel bringing systems injection forms the fuel-air mixture during the intake shot. In the instance of cardinal injection or a carburetor, the injection is at the recess of the air intake manifold. In the instance of port injection, it is injected at the recess port. Direct cylinder inje ction is more technologically sophisticated and involves organizing the fuel-air mixture inside the burning cylinder after the air consumption valve has closed.Cardinal Injection or Carburetted Systems:The simplest method of presenting fuel to a H engine is by manner of a carburetor or cardinal injection system. This system has advantages for a H engine. First, cardinal injection does non necessitate the H supply force per unit area to be every bit high as for other methods. Second, cardinal injection or carburetors are used on gasolene engines, doing it easy to change over a standard gasolene engine to hydrogen or a gasoline/hydrogen engine. The disadvantage of cardinal injection is that it is more susceptible to irregular burning due to pre-ignition and back fire. The greater sum of hydrogen/air mixture within the consumption manifold compounds the effects of pre-ignition.Port Injection SystemsThe port injection fuel bringing system injects fuel straight into the consumption manifold at each consumption port, instead than pulling fuel in at a cardinal point. Typically, the H is injected into the manifold after the beginning of the consumption shot. At this point conditions are much less terrible and the chance for premature ignition is reduced. In port injection, the air is injected individually at the beginning of the consumption shot to thin the hot residuary gases and cool any hot musca volitanss. Since less gas ( H or air ) is in the manifold at any one clip, any pre-ignition is less terrible. The recess supply force per unit area for port injection tends to be higher than for carburetted or cardinal injection syste ms, but less than for direct injection systems. The changeless volume injection ( CVI ) system uses a mechanical cam-operated device to clip the injection of the H to each cylinder. The CVI block is shown on the far right of the exposure with four fuel lines go outing on left side of the block ( one fuel line for each cylinder ) . The electronic fuel injection ( EFI ) system meters the H to each cylinder. This system uses single electronic fuel injectors ( solenoid valves ) for each cylinder and pumped to a common fuel rail located down the Centre of the consumption manifold. Whereas the CVI system uses changeless injection timing and variable fuel rail force per unit area, the EFI system uses variable injection timing and changeless fuel rail force per unit area.Direct Injection SystemsMore sophisticated H engines use direct injection into the burning cylinder during the compaction shot. In direct injection, the consumption valve is closed when the fuel is injected, wholly avoiding premature ignition during the intake shot. Consequently the engine can non backlash into the consumption manifold. The power end product of a direct injected H engine is 20 % more than for a gasolene engine and 42 % more than a H engine utilizing a carburetor. While direct injection solves the job of pre-ignition in the consumption manifold, it does non needfully forestall pre ignition within the burning chamber. In add-on, due to the reduced commixture clip of the air and fuel in a direct injection engine, the air/fuel mixture can be non-homogenous. Surveies have suggested this can take to higher NOx emanations than the non-direct injection systems. Direct injection systems require a higher fuel rail force per unit area than the other.Thermal DilutionPre-ignition conditions can be curbed utilizing thermic dilution techniques such as fumes gas recirculation ( EGR ) or H2O injection. As the name implies, an EGR system re-circulates a part of the fumes gases back into the consumption manifold. The debut of exhaust gases helps to cut down the temperature of hot musca volitanss, cut downing the possibility of pre-ignition. Additionally, re-circulating fumes gases cut down the peak burning temperature, which reduces NOx emanations. Typically a 25 to 30 % recirculation of fumes gas is effectual in extinguishing blo wback. On the other manus, the power end product of the engine is reduced when utilizing EGR. The presence of exhaust gases reduces the sum of fuel mixture that can be drawn into the burning chamber. Another technique for thermally thining the fuel mixture is the injection of H2O. Injecting H2O into the H watercourse prior to blending with air has produced better consequences than shooting it into the hydrogen-air mixture within the consumption manifold. A possible job with this type of system is that H2O can acquire assorted with the oil, so care must be taken to guarantee that seals do non leak.Engine DesignThe most effectual agencies of commanding pre-ignition and knock is to re-design the engine for H usage, specifically the burning chamber and the chilling system. A discoid burning chamber ( with a level Piston and chamber ceiling ) can be used to cut down turbulency within the chamber. The disc form helps bring forth low radial and digressive speed constituents and does non magnify recess whirl during compaction. Since unburned hydrocarbons are non a concern in H engines, a big bore-to-stroke ratio can be used with this engine. To suit the wider scope of fire velocities tha t occur over a greater scope of equality ratios, two flicker stoppers are needed. The chilling system must be designed to supply unvarying flow to all locations that need chilling. Extra steps to diminish the chance of pre ignition are the usage of two little exhaust valves as opposed to a individual big one, and the development of an effectual scavenging system, that is, a agency of displacing exhaust gas from the burning chamber with fresh air.Ignition SystemsDue to hydrogen ‘s low ignition energy bound, lighting H is easy and gasoline ignition systems can be used. At really thin air/fuel ratios ( 130:1 to 180:1 ) the fire speed is reduced well and the usage of a double flicker stopper system is preferred. Ignition systems that use a waste flicker system should non be used for H engines. These systems energize the flicker each clip the Piston is at top dead Centre whether or non the Piston is on the compaction stroke or on its exhaust shot. For gasolene engines, waste flicke r systems work good and are less expensive than other systems. For H engines, the waste flickers are a beginning of pre-ignition. Spark stopper for a H engine should hold a cold evaluation and have non-platinum tips. A cold-rated stopper is one that transfers heat from the stopper tip to the cylinder caput quicker than a hot-rated flicker stopper. This means the opportunities of the flicker stopper tip lighting the air/fuel charge is reduced. Hot rated spark stoppers are designed to keep a certain sum of heat so that C sedimentations do non roll up. Since H does non incorporate C, hot-rated flicker stoppers do non function a utile map. Platinum-tip flicker stopper should besides be avoided since Pt is a accelerator, doing H to oxidise with air.Crankcase Ventilation:Crankcase airing is even more of import for H engines than for gasolene engines. As with gasolene engines, un-burnt fuel can ooze by the Piston rings and enter the crankcase. Since H has a lower energy ignition bound than gasolene, any un-burnt H come ining the crankcase has a greater opportunity of lighting. Hydrogen should be prevented from roll uping through airing. Ignition within the crankcase can be merely a startling noise or consequence in engine fire. When H ignites within the crankcase, a sudden force per unit area rise occurs. To alleviate this force per unit area, a force per unit area alleviation valve must be installed on the valve screen. Exhaust gases can besides ooze by the Piston rings into the crankcase. Since H fumes is H2O vapor, H2O can distill in the crankcase when proper airing is non provided. The commixture of H2O into the crankcase oil reduces its lubrication ability, ensuing in a higher grade of engine wear.Emissions:The burning of H with O green goodss H2O as its lone merchandise: 2H2 + O2 = 2H2O The burning of H with air nevertheless can besides bring forth oxides of N ( NOx ) : H2 + O2 + N2 = H2O + N2 + NOx The oxides of N are created due to the high temperatures generated within the burning chamber during burning. This high temperature causes some of the N in the air to unite with the O in the air. The sum of NOx formed depends on:The air/fuel ratioThe engine compaction ratioThe engine velocityThe ignition timingWhether thermic dilution is utilisedIn add-on to oxides of N, hints of C monoxide and C dioxide can be present in the fumes gas, due to ooze oil combustion in the burning chamber. Depending on the status of the engine ( combustion of oil ) and the operating scheme used ( a rich versus thin air/fuel ratio ) , a H engine can bring forth from about zero emanations ( every bit low as a few ppm ) to high NOx and important C monoxide emanations. Power End product: The theoretical maximal power end product from a H engine depends on the air/fuel ratio and fuel injection method used. As mentioned in above, the stoichiometric air/fuel ratio for H is 34:1. At this air/fuel ratio, H will displace 29 % of the burning chamber go forthing merely 71 % for the air. As a consequence, the energy content of this mixture will be less than it would be if the fuel were gasolene ( since gasolene is a liquid, it merely occupies a really little volume of the burning chamber, and therefore allows more air to enter ) . Since both the carburetted and larboard injection methods mix the fuel and air prior to it come ining the burning chamber, these systems limit the maximal theoretical power gettable to about 85 % of that of gasolene engines. For direct injection systems, which mix the fuel with the air after the consumption valve has closed ( and therefore the burning chamber has 100 % air ) , the maximal end product of the engine can be about 15 % higher than that for gasolene engines. Therefore, depending on how the fuel is metered, the maximal end product for a H engine can be either 15 % higher or 15 % less than that of gasolene if a stoichiometric air/fuel ratio is used. However, at a stoichiometric air/fuel ratio, the burning temperature is really high and as a consequence it will organize a big sum of N oxides ( NOx ) , which is a criteria pollutant. Since one of the grounds for utilizing H is low exhaust emanations, H engines are non usually designed to run at a stoichiometric air/fuel ratio. Typically hydrogen engines are designed to utilize approximately twice every bit much air as theoretically required for complete burning. At this air/fuel ratio, the formation of NOx is reduced to near nothing. Unfortunately, this besides reduces the power end product to about half that of a likewise sized gasolene engine. To do up for the power loss, H engines are normally larger than gasolene engines, and/or are equipped with turbochargers or superchargers.Hydrogen Gas Mixtures:Hydrogen can be used well in internal burning engines as an linear to a hydrocarbon fuel. Hydrogen is most normally assorted with high force per unit area natural gas for this intent since both gases can be stored in the same armored combat vehicle. If H is blended with other fuels, it normally has to be stored individually and assorted in the gaseous province instantly before ignition. In general, it is impractical to utilize H in concurrence with other fuels that besides require bulky storage systems, such as propane. Gaseous H can non be stored in the same vas as a liquid fuel. Hydrogen ‘s low denseness will do it to stay on top of the liquid and non blend. Furthermore, liquid fuels are stored at comparatively low force per unit areas so that really small H could be added to the vas. Liquid H can non be stored in the same vas as other fuels. Hydrogen ‘s low boiling point will stop dead other fuels ensuing in fuel â€Å"ice† . Hydrogen can be used in concurrence with compact liquid fuels such as gasolene, intoxicant or Diesel provided each are stored individually. In these applications, the fuel armored combat vehicles can be formed to suit into fresh infinites on the vehicle. Existing vehicles of this type tend to run utilizing one fuel or the other but non both at the same clip. One advantage of this scheme is that the vehicle can go on to run if H is unavailable. Hydrogen can non be used straight in a Diesel ( or â€Å"compression ignition† ) engine since H ‘s car ignition temperature is excessively high ( this is besides true of natural gas ) . Therefore, diesel engines must be outfitted with spark stoppers or utilize a little sum of Diesel fuel to light the gas ( known as pilot ignition ) . Although pilot ignition techniques have been developed for usage with natural gas, no 1 is presently making this with H. One commercially available gas mixture known as Hythane contains 20 % H and 80 % natural gas. At this ratio, no alterations are required to a natural gas engine, and surveies have shown that emanations are reduced by more than 20 % . Mixtures of more than 20 % H with natural gas can cut down emanations further but some engine alterations are required. Thin operation of any internal burning engine is advantageous in footings of oxides of nitrogen emanations and fuel economic system. For hydrocarbon engines, thin operation besides leads to take down emanations of C monoxide and unburned hydrocarbons. As more O is available than required to burn the fuel, the extra O oxidizes more C monoxide into C dioxide, a less harmful emanation. The extra O besides helps to finish the burning, diminishing the sum of unburned hydrocarbons. As with H, the drawback of thin operation with hydrocarbon fuels is a decreased power end product. Thin operation of hydrocarbon engines has extra drawbacks. Thin mixtures are difficult to light, despite the mixture being above the LFL of the fuel. This consequence in dud, which increases unburned hydrocarbon emanations, reduces public presentation and wastes fuel. Another disadvantage is the decreased transition efficiency of 3-way catalytic convertors, ensuing in more harmful emanations. To some extent, blending H with other hydrocarbon fuels reduces all of these drawbacks. Hydrogen ‘s low ignition energy bound and high firing velocity makes the hydrogen/hydrocarbon mixture easier to light, cut downing dud and thereby bettering emanations, public presentation and fuel economic system. Sing power end product, H augments the mixture ‘s energy denseness at thin mixtures by increasing the hydrogen-to-carbon ratio, and thereby improves torsion at wide-open throttle conditions.Current Status:A few car makers have been making some work in the development of hydrogen-powered vehicles ( Ford has late announced that they have developed a â€Å"production ready† hydrogen-powered vehicle utilizing an ICE and BMW has completed a universe circuit exposing a twelve or so hydrogen-powered 750i vehicles ) . However, it is non likely that any hydrogen-powered vehicles will be available to the populace until there is an equal re-fuelling substructure and trained tech nicians to mend and keep these vehicles. Like current gasoline-powered vehicles, the design of each H powered vehicle will most likely vary from maker to maker and theoretical account to pattern. One theoretical account may be simple in design and operation, for illustration, a thin combustion fuel metering scheme utilizing no emanation control systems such as EGR, catalytic convertor, evaporate fuel case shot, etc. Another theoretical account may be really sophisticated in design and operation, for illustration, utilizing an EGR fuel metering scheme with a catalytic convertor, multiple flicker stoppers, etc. Until such clip that a H substructure exists, hydrogen/natural gas fuel blends provide a logical passage to to the full hydrogen-powered vehicles. These vehicles can run on either fuel, depending on handiness

Finance Essay Example | Topics and Well Written Essays - 750 words

Finance - Essay Example The basic constituents of balance sheet are identified as the net worth of assets, equity of the owners or the stockholders and the liabilities held by the organization for a particular fiscal year. In this similar context, the assets which are taken into concern in the balance sheet of an organization include cash, stock or inventory, bills receivable, tangible properties (e.g. plant, machinery and buildings) and goodwill. In this context, the goodwill is viewed to be a kind of intangible asset and appears in the assets side of the balance sheet. Arguments concerning the calculation of goodwill and its inclusion in the asset side of a balance sheet have consequently given rise to certain questions which also requires to be considered by managers dealing with company finances (Zions Bank, n.d.). The key components of income statement of an organization include revenue, operating expenses (both direct as well as indirect), depreciation, operating profit, net income, earnings per share , gross and its corresponding net profit. In this regard, only the indirect expenses appear in the income statement as the expenditures are indirectly related with the making of goods which again gives rise to certain questions concerning the reasons to avoid including direct expenses. The income statement usually delivers an exact picture of the incomes as well as the expenses incurred by the business and also determines their profitability along with business performance (Wall Street Prep, n.d.). Challenges in Interpreting Financial Statements Managers entitled to perform the financial recording of an organization are often examined to face daunting problems or challenges while interpreting the financial statements in order to make efficient financial decisions. The reasons fundamentally include extremely competitive business conditions, composite business transactions, requirement to comply with composite accounting rules and regulations, inefficient reporting from subordinates a nd huge compliance expenditures. In this regard, one of the most apparent challenges which are frequently faced by the managers in interpreting financial statements is the obligation to follow specified auditor norms which if misrepresented can even necessitate financial restatements. Consequently, the reporting failures as a form of financial restatements pose considerable impact upon the organizations by affecting their financial position to a large extent (DeZoort, n.d.). The other challenge which might be faced by the managers while preparing financial records indicates towards the accurate determination of revenue or capital expenditures. This challenge can lead towards affecting the income statement of the organizations by a large degree. However, this challenge can be addressed by taking into concern the actual items of the revenues along with the expenditures in the income statement for the motive of evaluating profitability as well as flexibility (Wall Street Prep, n.d.). O verview of the Financial Statements of a Healthcare Organization The constituents of financial statements vary according to the business operations from one sector to another. The financial statement of UnitedHealth also reveals unique and immensely valuable information relating to the US healthcare sector. One of the imperative information which has been viewed in the 2011 financial statement of this organization is regarding the total revenue. As can be revealed from the information presented

Ethical Self-Assessment Essay Example | Topics and Well Written Essays - 750 words

Ethical Self-Assessment - Essay Example I realized that every decision I made in the workplace and even in my private life has an ethical aspect to it and failing to address this can lead to unethical actions. I also realised that every action and decision taken will affect both me and at least another individual in a certain way. In this regard, when making decisions, it is necessary to know when to act in which way and how this will affect the other person; this is especially so with regard to the patients I deal with and the people I work with. The ACHE standards are important in guiding my professional ethical conduct as they act as a guidelines as well as a reminder of the importance of ethical behaviour and ethical conduct. The ACHE standards are important in reminding me how important it is for a professional in my career to be able look at the ways in which my actions affect the other people. ACHE standards are geared towards affecting the way people think about their actions with regard to other people. As an indi vidual, ACHE standards have made me to rethink the way I do things and the way I look at issues. They have reminded me that in making decisions, I should be able to think about the other person and not just how the decision will be beneficial to me. My individual ethics determines how I make decisions and how I act in all times. Regardless of the ACHE standards, I am an honest person and I believe in fairness. In this regard, I always look for fairness when making decisions and when acting in certain ways. This helps me to make the right decisions and to be able to consider how my decisions will affect other people. However, there are those instances where I may drop my guard and may not essentially act in the ethical way. One example of such a time is when dealing with other people’s actions. ACHE standards have made me to realise that ethical conduct is not just limited to my actions, but rather that it also has to do with how I deal with other people’s actions. In t his regard, if a colleague acts in an unethical way, it is my ethical responsibility to correct them and to make sure that such unethical actions are not tolerated. Acting in an ethical manner can be a big challenge due to a number of issues. One main issue has to do with the fact that one may not know when he or she is acting in an unethical way. In this regard, one of the strategies which I will use in order to help myself to act in an ethical manner in the future is by learning as much as possible about ethical issues. For instance, studying the ACHE standards can help me to identify the many situations in which I should be alert ethically. As described above, being able to correct the actions of others when they are unethical is part of ethical behaviour and failing to do so is unethical. This was only made clear to me after studying the ACHE ethical standards. In this regard, I intend to learn as much as possible in order to make sure that I understand as much as possible the v arious issues which constitute unethical behaviour. The other important thing which I will include in my strategy for the future with regard to ethical behaviour is acting in time and being proactive. By reading the ACHE ethical standards, I realised that failing to act in time and only acting in the last minute is one of the factors which lead to unethical action because one is left with little choice. In this regard, I will start acting proactively to make sure that