A Musculoskeletal Disorder Health And Social Care Essay

Biotechnologies is the survey of the correlativities between individuals and their work scenes. This involves planing or custom-making a occupation, workplace, tools, work procedures to run into the demands of its employees, non frailty versa. Here the associated or possible jeopardies are identified and eradicated. A musculoskeletal upset ( MSD ) entails an hurt, damage or unwellness impacting the articulations or other tissues of the weaponries, legs or the back. Hence ergonomics focuses on the hazard factors that increase the happening of musculoskeletal upsets and eliminates them. Biotechnologies strive to heighten the strong points and capablenesss of workers alternatively of holding them adapt to the workplace environment. These designs take into consideration the kineticss of the work force that is their age, sex, physical strength, rational ability, work experience, cultural outlooks and aspirations. ( Bellinger, 2001 ) There are general guidelines that workers need to follow with to forestall wellness jobs that occur with computing machine use. The chair used by office workers is fundamentally the most important portion of a safe working environment and its tallness should be able to be adjusted with one manus whilst seated before any other alterations to the keyboard or proctor ‘s location is done. This should besides hold lumbar support, if there is no support shock absorbers can supply same. To accomplish this topographic point a shock absorber at the curvature of the lower dorsum and on the chair. The worker ‘s pess should rest on the floor comfortably if that is non possible usage a pes remainder to make so. Use headsets if the occupation includes the frequent usage of a phone in combination with typing or composing alternatively of a phone that needs to be supported utilizing your caput and cervix. Research different manners of headsets until one that is suited or comfy for the occupation is found. Directly in forepart of the worker the proctor should be located about arm ‘s length, which is averagely eighteen- 20 eight inches ( 46 to seventy one centimetres ) off. At below oculus degree the top of the screen should be positioned. If illuming provides a blaze and is a job exchange off all overhead visible radiations and barricade off visible radiation from the Windowss. Ensure that the most luminescent visible radiation beginning comes to the side of the proctor. Lighting should be considered in the office as they create blazes that affect the proctor screen. A blaze screen to minimise the blaze on the screen should be utilized. A light with assorted control scenes to dimmer the visible radiations with undertaking lighting can be used. A undertaking visible radiation equally distributes the visible radiation throughout the room and reduces the overall lighting to cut the blaze. All these steps are to cut down oculus strain on the computing machine user. Computer users experience ocular uncomfortableness from uncorrected vision jobs that are more marked because of computing machine use, sight alterations as one age, wrong prescription spectacless or contact lens for computing machine use, bad workstation set up and lifestyle wonts like smoke, deficiency of slumber. The worker ‘s carpus should be at a heterosexual, natural place when typewriting, avoid flexing up or down or to either side. The keyboard and proctor should be centered in forepart of the worker ‘s organic structure. Maintain an vertical place when seated, thighs should be kept horizontal with articulatio genuss and hips at the same degree and throughout working your forearms should be degree or tilted up somewhat. To help in cut downing the emphasis on your carpuss and place a wrist remainder should be used, with the custodies and carpuss kept above it. Ensure that interruptions are taken by resting the heels or thenars of the custodies alternatively of the carpus. At the side of the keyboard the mouse should be kept in an easy accessible place. The carpus should be in a natural and comfy location whilst utilizing the mouse. Tools or objects that are used for work should be kept within easy range to avoid over stretching. To avoid this base up and make for needful points that can non be accessed whilst seated. There are measurement specifications for the desk which is at least 19 inches deep, 30 inches broad and based on the workers height up to thirty four inches high. Do non hive away any points under the desk so that the legs, articulatio genuss and thighs are clear. Some chairs are excessively high and pess do non make the flat on the floor, contemplate the usage of a pes remainder. Set up work station so that one does non hold to make over their shoulder. Encourage workers to change their work undertakings. Ensure that workers take interruptions from their work to alleviate oculus strain and weariness. Provide holders for paperss to ease easiness of responsibilities public presentation. The worker should seek to avoid feeling stressed when utilizing computing machines particularly when their occupation demands do non fit their computing machine user ‘s cognition, resources and abilities. If these conditions and other more elaborate guidelines are non followed so assorted wellness jobs can happen. Harmonizing to Bellinger ( 2001 ) the following tabular array contains these wellness jobs with their preventive steps. Disorder ( Body Part Affected ) Description Symptoms Lending Factors Normally Recommended Preventive Measures Bursitis ( Joints ) Swelling or annoyance of the fluid filled sac beneath the sinews ( Bursa ) . Pain and stiffness exacerbated by motion. Injury or overexploitation during work. Often occurs in persons, who are ill conditioned, have bad position, or utilize the affected limb in an awkward position. Reduce or avoid the activity that caused the issue. Use proper placement during the activity to forestall reoccurrence. Bursitis – Shoulder ( Shoulder/Upper Arm ) Swelling of one of the Bursa, located in the shoulder between the sinews and the caput of the humerus bone. Pain and stiffness aggravated by motion. Injury or overexploitation during work or drama. Often occurs in persons, who are ill conditioned, have bad position, or utilize the affected limb in an awkward position. Reduce or avoid the activity that caused the issue. Use proper placement during the activity to forestall reoccurrence. Carpal Tunnel Syndrome ( Hand/Wrist ) Compaction of the average nervus in the carpal tunnel of the carpus. Numbness, prickling, and hurting in the carpus, pollex, index, center and pealing fingers – non the small finger. Early symptoms frequently wake people in the center of the dark. May besides include swelling, failing or awkwardness in the manus. Arm lift, adduction, and rotary motion. Reduce work done above shoulder degree. Computer Vision Syndrome ( Eyes ) Eye and vision jobs related to near work, experienced during or related to computing machine usage. Eyestrain, blurred near or distant vision, concern, dry or annoyed eyes, cervix or back achings, light sensitiveness, or dual vision. Rapid, frequently repeated finger motions, inordinate carpus divergences, inordinate or repeated forceful pinching and grasping. Swelling from next jobs may besides worsen or convey on carpal tunnel syndrome. Reduce or extinguish insistent work, wrist divergences, and forceful pinching and grasping. Avoiding or cut downing the activity that is doing the symptoms frequently alleviates symptoms in mild instances. Cubital Tunnel Syndrome ( Elbow/Ring and Little Fingers ) Compaction of the ulnar nervus below the notch of the cubitus. Often occurs in combination with median epicondylitis. Numbness, prickling and hurting in the ring and small fingers. May include awkwardness and failing in the manus. Besides frequently consequences in elbow hurting on the interior of the arm. Resting the cubitus on difficult surfaces or crisp borders, inordinate flexure of the cubitus making tenseness on the nervus. Avoid or cut down contact stressors or drawn-out force per unit area on the nervus. Avoid direct injury to the nervus. DeQuervain ‘s Disease/ Tenosynovitis ( Wrist and Forearm ) Irritation of the sinews on the side of the carpus which moves the pollex, and at the base of pollex. Pain and swelling on the side of the carpus and forearm merely above the pollex. Combined forceful gripping and manus distortion. Reduce force to custodies. Keep custodies in impersonal positions. Dry Eye Syndrome ( Eyes ) The diminution in the quality or measure of cryings that bathe the oculus. Dry, ruddy, or annoyed eyes, contact lens uncomfortableness, or inordinate physiological reaction lacrimation. Decreased wink rate. High regard angle. Dry office environment. Take a interruption every 30 proceedingss and look 30 pess off for 30 seconds. Epicondylitis Medial Epicondylitis ( Golfer ‘s Elbow ) Lateral Epicondylitis ( Tennis Elbow ) Irritation or redness of the bumps ( epicondyles ) on either the exterior or interior of the cubitus or environing tissues. Medial is on the interior of cubitus and sidelong on the exterior of the cubitus. Tenderness and hurting at the affected site. May besides include hurting in the forearm musculuss. Unaccustomed strenuous activity or inordinate emphasis of the forearm musculuss or sinews that bend or straighten the carpus and manus. Reduce or avoid activities that require usage of the flexor musculuss in a bending gesture or hold oning with the manus. Lumbosacral Strain/ Sprain ( Spine ) Abnormal divergences of alliance that cause compaction to the bony constructions and tenseness on musculuss and ligaments. Low back hurting and possible hurting in the legs. Faulty alliance, standing for long periods, unguarded forward bending, sudden forceful motion. Besides hapless conditioning, improper usage, fleshiness, and smoke. Reduce inactive burden, transporting, manual stuff handling, and hapless back positions. When lifting, usage right lifting and traveling techniques and acquire aid if an object is excessively heavy or an awkward size or form. Sciatica ( Lower Back/ Legs ) Pain along the class of the sciatic nervus, which runs from the lower back down the dorsum of the legs. Trouble extends down the posterior thigh and lower leg to the sole of the pes and along the sidelong facet of the lower leg to the back of the pes. Pressure on one or more of the nervus roots lending to the sciatic nervus. Mechanical factor of compaction or tenseness. Pain frequently occurs following an unusual motion or effort that causes a tear in one or more of the intervertebral phonograph record. Reduce or avoid manual stuff handling. Avoid lifting and distortion at the same clip. Avoid sitting in a slouched position. Tendinitis ( Joints ) Inflammation or annoyance of a sinew. Tendons attach musculuss to castanetss. Occurs most frequently in the flexor and extensor sinews of the fingers, pollex, forearm, cubitus, or shoulder. Symptoms can run from specific hurting, stiffness, stringency, and firing esthesiss to a deep, nonspecific hurting. Grasp can be impaired. Injury or overexploitation during work or drama. Often occurs in persons, who are ill conditioned, have bad position, or utilize the affected limb in an awkward position. Reduce or avoid the activity that caused the issue. Use proper placement during the activity to forestall reoccurrence. Tendinitis ( Elbow ) Elbow sinew redness. See tendinitis. Insistent forceful efforts of forearm, rotary motions around elbow joint. Reduce manus fasteners. Tendinitis ( Wrist ) Inflammation and thickener of the sinews in the carpus. See tendinitis. Forceful ulnar divergence and thumb force per unit area, insistent carpus gesture, forceful carpus extension, and pronation. Reduce repeats, hapless positions, and forceful gestures. Tension Neck Syndrome ( Neck ) Irritation of the levator shoulder blade and trapezium, all musculuss of the cervix. Causes tightening of the musculuss in the cervix. Neck stiffness every bit good as concerns. Concerns are frequently described as a force per unit area esthesis around the caput. Pain may construct and escalate at the terminal of twenty-four hours. Lateral, inactive motion of the caput and cervix – flexure or extension of the cervix. Ensure proper cervix positions, correct working highs, and adjust ocular cues. Tendinitis ( Elbow ) Elbow sinew redness. See tendinitis. Insistent forceful efforts of forearm, rotary motions around elbow joint. Reduce manus fasteners. Implementing biotechnologies into the workplace is to a company ‘s addition, it is good concern as it assists in maximising the staff ‘s potency. Not merely must direction see the demand for biotechnologies but staff must be sensitized to these preventive steps. Workers excessively must cognize what biotechnologies wholly entails and appreciate its values in the workplace. This sensitisation can happen through assorted educational preparations steps like workshops, in-services and classs. Throughout this study it has been shown how critical biotechnologies is and the wellness jobs associated to same if these preventive steps are non complied with.

Us Iran Relations

US-Iran Relations Acknowledgements I would like to thank my teacher, Ms. Mashal Shabbir. The supervision and support that she gave truly helped me in this project. Her cooperation is thus appreciated. Abstract This report explains the US-Iran relationships, how they changed over the period of time and what the main reasons for that change were. I tried to analyze these reasons according to the International Relations theories as well as my own opinion. The report includes the information mainly from 1940 to date. Discussion In the last days before the culmination of Iranian revolution the electricity workers in Tehran would turn off the lights each evening and then from the rooftops came the chant â€Å"God is Great† with another chant, â€Å"death to America† however with a much contradicting tone† (Cottom, 1988). These words themselves explain the intensity which lies in the US- Iran relationships since the Iranian revolution. European intrusion in Iran has been a prolonged one with immense prominence. Trade was one of the most significant reasons.Iran’s geographical position made it the central attention for the European traders, as the land route which joined the western and eastern worlds crossed Iran. Moreover, as Cottom explains in his book that the only presence of the Europeans in Iran was â€Å"a matter of national prestige†. That is this prestige not only advanced Europeans economically but politically too. US initially was viewed as a caring western country, who was not only sincere but also advocated human rights of freedom, moreover encouraged courage, independence as well as dignity for the people of Iran.Before 1940’s it had no economic interest in Iran plus only a minute aid was granted to Iran during the event of Soviet invasion in Iran, however this minute interest which US had in Iran was not long lived. Iran, blessed with one of the most precious reserves of oil attracted the western world immensely. With increasing industrialization especially in Britain as well as America oil was becoming one of the main ingredients of their success. The British government purchased a large amount of Anglo-Persian Oil Company’s (APOC) stock during the First World War.This oil company was a predecessor of the Anglo-Iranian Oil Company (AIOC). By the time of Iranian oil crisis almost half of APOC’s stock was in the hands of Britain. Iranians on the other hand were kept away from the high ranking positions in the oil company. Moreover neither did the royalty payments satisfied the Iranian government nor did the high levels of confidentiality which prevailed in the major decision making contended them, giving birth to a situation which benefited neither of the two parties. Thus during 1951-1953 Iran strived to gain power over its oil industry which gave hype to the sense of nationalism in Iranians.The leaders in Iran provided the stance that out of the ? 250 million of profits which AIOC made in the late 1940’s their royalty payments only counted for one third of the total amount that is ? 90 million (Mary Ann Heiss). On the part of British Empire â€Å"oil† had become an evil necessity not only economically but also to sustain its political position as â€Å"a great power† in the World. Thus this nationalization not only threatened its position in the Middle East but also could have blown its largest investment abroad. Iranians on the contrary were keen to achieve independence nationally and politically.Although they were well aware of the fact that this may lead to serious economic adversity in Iran, they wanted the British dominance abolished to be treated as a sovereign nation. Therefore Prime Minister Mohammad Mossadeq stressed upon full control over Iran’s internal and financial affairs. The increasing tension between Britain and Iran and the wavering issues led the United States (US) jump in the situation. For US however the main goal was not the interests of either party that is Iran or Britain but it had its own underlying concern.Thus this can be said that this was the first time that US was seriously involved in the internal affairs of Iran, marking the beginning of their relationship. The nationalism which the Iranian governments were emphasizing upon was very closely related to communism, in a sense that it could have given rise to autocracy, which at that time was not at all acceptable to US. As this movement by the Iranians could have led to open paths for the Soviet Union to the oil fields of Middle East, America did not want to jeopardize its position along with its power. Moreover this oss of oil industry would have led to serious economic setbacks in US. In her paper, â€Å"The United States and Great Britain Navigate the Anglo-Iranian Oil crisis† the author Mary Ann Hiess explains the US-Iran relations in three phases during the oil crisis. The first phase named â€Å"benevolent neu trality† lasted almost from 1950 till the mid of 1951. The US officials acted as responsible negotiators and reconciled with the idea of nationalization as well as also recognized the rights of the contract of AIOC. Escorting to the second phase which is known as’ â€Å"Era of Anglo-American Partnership†.This phase propagated accelerating ideological and policy empathy mainly between Washington and London. The third phase however was that of US interest, that is US was somewhat getting successful in its goals, termed as the era of US domination this phase highlights Eisenhower ‘s (president of US 1953) negotiations which led to the formation of international association that replaced AIOC with the nation’s own oil industry in 1954. Now that the US domination prevailed in Iran, the American officials along with the British bureaucrats decided to overthrow Mossadeq for harming Iran’s stability.Therefore mainly Britain decided to pursue an operat ion commonly known as the Coup. However the Coup ultimately turned to operation AJAX which was organized and financed by US. According to International relations theories America in this particular situation acted quite like the classical realists. As it is obvious that the development of US interest in the whole situation is due to the fact that it was being flawed, selfish, competitive and ambitious due to its own goals, rather to solve the dispute for the betterment of Iran and Britain.The coup which occurred in august 19th 1953, basically aimed at overthrowing the government of Prime Minister Mohammad Mossadeq to remove the dictatorship from Iran and pursue democracy. Mark J. Gasiorowski in his article, â€Å"The 1953 Coup D’etat in Iran† gives the account of the takeover. While US and the British officials were already considering overthrowing mossadeq from power, the situation in Iran was not a favourable as well. Many opponents of mossadeq had already started to take actions against him. Anti-mossadeq mobs were arranged to kill him.Iran already was facing huge economic turmoil now had to face political unrest as well. Looking at the situation the new American government of Eisenhower also began to consider the operation and finally decided to organise and aid the coup along with Britain. Mossadeq already was facing hostility from the citizens of Iran therefore it made even easier for US to propagate masses against him. With the help of BEDAMN-a political action- uprising was arranged along with continued disputes. Government offices, buildings of pro-mossadeq newspapers were attacked.Air force general along with the forces attacked mossadeq’s house killing around three hundred people. The very next day mossadeq surrendered to Zahedi, marking the end of the coup. This revolution undoubtedly had a long and deep affect on the US-Iran relationships. The question which arises here is that, was America’s interest in Iran’s i nternal affairs genuine? Well America as I discussed above is a realist approach led country which ranks its own personal interest on the top. Then being sincere towards Iran itself becomes a futile question.Most of the studies highlight that the main aim US had out of this coup was to get significant share in the oil industry. Moreover this can be proven accurate to some extent by if we notice the fact that immediately after coming into power Zahedi government granted almost 40% of the total oil industry’s share to American oil companies (Gasiorowski, 1987). However a contradicting fact that most of the American oil producing countries were not interested in the share basically due to nimiety of oil in the world market- mainly in Saudi Arabia and Kuwait- proves that this might not be the sole or the most imperative reason.Another perspective of the situation is the American fear of communist takeover. At the time of coup Cold war between Soviet Union and US was at its peak a nd of course America being governing in nature would not allow soviet’s expansion to become a threat to US dominance, power and sovereignty. Although this coup proved beneficial for Iran, as it gave birth to democracy but the fact that this triumph was not experienced solely on the basis of internal struggle. In reality Iran was made a subject of constant US intervention, thus somewhat abusing its decision making ability.After the coup Mohammad Raza Pahlavi was reinstated as the Shah of Iran. Many authors state Pahlavi was long supported by the US government, although they were aware of the malpractices and the corruption which prevailed in his regime. The shah was forced to flee out of Iran when widespread unrest originated on the part of civilians and a new, more religious leader, Ayatollah Ruhollah Khomeini was granted the power. However this offense motivated the Iranian students to take revenge from the US. On November 4th 979, the Iranian students drizzled into the US e mbassy situated in Tehran and took almost 52 American officials as hostages on the demand that the shah who fled away should come back to Iran for trial of the crimes he committed against Iranians. The situation lasted for about 444 days as the US administration driven by Jimmy Carter was doomed by the failed attempts in 1980. However the hostages were released on the day Ronald Reagan was sworn as the new US president on January 20th 1981. This incident however changed the diplomatic, economic and political landscape between Iran and US for the years to come.By capturing hostages Iranians proved their anger against American’s negligence over Iranians as well as the power which they could use against US to advance their welfare. Another episode of varying US-Iran relations begun in 1986,when Iran secretly asked US for help while it was at war with Iraq. Iran requested US to sell weapons, however Reagan wanted Iran to release seven of the US hostages which Iranian terrorists h eld. This however did not remain confidential for long, instead soon people discovered this Iran-Contra.US emphasized that this was an arms for hostages deal as well as tried to stress upon the fact that it will improve US-Iran relations. This improvement in the relationships of the two countries was not long lived as in 1988 the tragic incident of Iran’s airplane shot down shrunken the trust between US and Iran. On the morning of July 3rd 1988, commercial flight operated by Iran Air took off for Tehran-Bandar Abbas-Dubai route however it was its bad luck that it never reached Dubai. At the same time another plane or more generally a Missile cruiser of US navy known as the US Vincennes would pass over this commercial flight.The US Vincennes was at the Persian Gulf during the Iraq-Iran war. Vincennes saw another airplane flying towards the Persian Gulf however it thought that it identified it as a possible Iranian F-16 issuing various warnings and civil distress frequencies wh ich of course never reaches the Iran Air. Thus after waiting for a bit the commander of Vincennes Captain Rogers ordered to fire two missiles at it. The Airbus was hit and soon it tumbled into flames killing around 290 innocent people in the flight. After the tragic incident the deterioration of the relations deepened as no severe action was taken against Captain Roger’s folly decision.Moreover it was just named a â€Å"mistake† by Pentagon. George W. Bush, vice president of US at that time declared a bold remark in Newsweek, â€Å"I will never apologize for the United States of America, ever. I don’t care what the facts are. † Thus this boldness highlights the rigidity that prevailed in American’s attitude. 1990’s a new decade, was begun with another policy implementation by the US. â€Å"dual containment† as it was known was a policy set up by Americans to isolate Iran and Iraq both economically and militarily mainly to achieve its own regional ambitions.US did not want any other countries to be in power and with the increasing influence of both Iran and Iraq; it saw its own position jeopardizing. US banned all trade, financial loans and services with Iran as it thought that the regime in Iran promoted terrorism and assassinations throughout the world. The beginning of a new millennium also marked a beginning of new tensions between the countries. US alleged Iran for expanding its nuclear activities and developing missile-related technology. It was threatening to the survival of US. Thus Iran was termed as the â€Å"axis of evil† by George W.Bush who by then was the president of US as according to them it enhanced terrorism. Ambitious in developing its nuclear base Iran continued to seek help from Russia and China despite US discontent. Throughout early 2000’s UN inspected Iran’s nuclear facilities. The reports said that there was no evidence of Iran producing atomic bomb but US considered it, â€Å"impossible to believe†. US kept on forcing Iran to suspend any of its nuclear progressions however Iran acted very firmly as proved by president Katami’s statement that its country will never give up its nuclear project and stressed its peaceful usage.The relations kept on becoming hostile, although America provided Iran with a humanitarian aid in 2003 because of the earthquake, it emphasized that this does not mark any thaw in their relationships. Throughout 2005 Iran’s nuclear program and uranium dispute remained a problem for US. For Americans it was of immense importance that Iran withdraws it activities as US secretary of state Condoleezza Rice explained , â€Å"US faces no greater challenge than Iran’s nuclear program†( BBC NEWS).However the new, more conservative president of Iran Ahmadinejad clearly stated that Iran has the right for peaceful progression of the nuclear project along with its announcement of successful enrichment of uranium. This prompted US to take strong steps against Iran. As for analysis purposes this can be considered that US and Iran were on a kind of cold war from the beginning of 2000. US major discontent was Iran’s nuclear program after all it was the prime threat to US continued existence. And for this reason US several times along with UN tried to impose sanctions over it. When nothing helped, President Bush accused Iran with Al-Qaeda.Thus stating that extremism prevailing in Iran could lead to adverse effects if nuclear program is continued. This brought huge military confrontation from Iran. Tensions prevailed as both countries accused one another either for spying or encouraging terrorism. To date the most destructive problem which prevails between the two countries is the Iran’s nuclear program. Several discussions have been held between the new presidents that is Barrack Obama and Ahmadinejad but no intelligent conclusion has been reached. This can be concluded that US interests had been objective in terms of truly helping Iran.US initially got interested in Iran due to the fact that it did not want Soviet Union to get advantage over the Iranian Oil industries. It wanted to achieve its own regional advantages over the most fertile country in the Middle East. However when Iran began to retaliate against US it posed great threat to their survival. The most significant example of this is the current tensions because of nuclear progression in Iran. Thus it can be concluded that US who undoubtedly follow the realists’ paradigm proved to be quite selfish when it came to their sovereignty.They made use of the dominance principal on several occasions as it did not want any other country to become a greater power. Iran on the other hand acted differently. It was basically on the leaders of Iran which determined its behavior towards America. Those who were pro American acted exactly as America wanted them too for example Zahedi, Pahlavi. Othe rs contradicted its policies and behaviour. They acted the way they thought was better for Iran, moreover stood strong in front of America for their rights such as Khomeini, Ahmadinejad.Thus the relations varied and contoured during different phases of US-Iran history. References about. com. (n. d. ). The Iran-Contra Affair. Retrieved from http://usforeignpolicy. about. com: http://usforeignpolicy. about. com/gi/o. htm? zi=1/XJ&zTi=1&sdn=usforeignpolicy&cdn=newsissues&tm=7117&f=11&tt=2&bt=1&bts=1&zu=http%3A//www. pbs. org/wgbh/amex/reagan/peopleevents/pande08. html Anthony Cordesman, S. F. (n. d. ). DUAL CONTAINMENT: SLOGAN OR POLICY? Bernard Gwertzman, C. E. (2012, March 6). Crisis-Managing

Nissan Essay Example | Topics and Well Written Essays - 4250 words

Nissan - Essay Example The Company is also engaged in manufacture and supply of automobile parts. Its overseas market includes Europe, North America, Africa, New Zealand, and China. Nissan established an alliance with Renault SA in 1999 in order to resolve its financial difficulty. Renault SA is a French automobile manufacturer, who was looking to expand its brand into other world markets. The alliance was designed to achieve profitable and balanced growth for both the partners through the creation of a bi-national group. Nissan has been working to address global environmental issues that have caused increasing concern over recent years. Renault has been expanding its activities into other world markets by improving core competencies; it is argued that if Renault had not found a partner, it could have found survival difficult when faced with global competition (Autozine, 2002b).The RNA is an agreement concerning a global alliance aimed at "achieving profitable growth for both companies". Both companies have interest of cross shareholding, so they joined alliance for manufacturing facility. Renaults stake in Nissan is a stake in its performance, and vice versa, which immediately moves the alliance away from the likes of Rover-Honda, where no such arrangement existed. The Alliance develops and implements a strategy of profitable growth and sets itself the following three objectives: The Renault-Nissan Alliance is ranked among the worlds leading five automakers. This alliance mainly includes five brands: Nissan and Infiniti for the Nissan group and Renault, Dacia and Samsung for the Renault group. As s result of the synergies generated by the alliance, Renault and Nissan assert their ambitions for future developments. (Nissan). Q.1) In the April-to-December, 2008 period, net revenue fell 14.7% to 6.6858 trillion yen. Operating profit totalled 92.5 billion yen, down 84.0%. Operating profit margin came to

Answer Exam Paper Essay Example | Topics and Well Written Essays - 1250 words

Answer Exam Paper - Essay Example Take interest in the F-stat and P-value. They are the only bits you need to validate any investigation (hypothesis). If asked to calculate physically, F=Mean sum of squares (between groups)/ MS (within groups). You realize that for this question we treat the Variation within groups as the ‘error group’, thus Error Sum of Squares (SSE) where we have SS (within groups) and Mean Error sum of squares (MSE).Now when you are required to use F-Stat to validate your test, you got to have two values of it. The first one you compute as in the case shown in the table below (the ANOVA). It is called the computed value of F or F-Computed (you went the long ANOVA way to compute it). To get the second one it is really easy, especially when you’ve got the table values. Take the degrees of freedom in the row you want to test AGAINST THE TOTAL, very important, and bear in mind the level of significance. For example here we shall have F (3, 79, 0.05). They flow in the order Numerato r, Denominator and Level of Significance (LoS). You call this the F-tabulated (derived from the tables). If F-computed>F-tabulated, reject the H0. The P-Value works slightly different. If the P-Value is much less than the Level of Significance, you reject the null hypothesis. ... e of Variation SS df MS F P-value F crit Between Groups 11115.24 3 3705.079 22.74625 1.31E-10 2.724944 Within Groups 12379.45 76 162.8875 Total 23494.69 79 Â   Â   Â   Â   a) F-Statistic= 22.74625 P-Value= 1.31?10-10 b) Let ?i denote the average service time for outlet i. H0: ?1= ?2= ?3= ?4 In order to test the hypothesis on means, the null hypothesis becomes the proposition that all means are equal. Thus by default, anything different will form the alternative hypothesis. c) Yes I would reject the null hypothesis at 5% Level of Significance. This is because the P-Value is smaller than the Level of significance. In order to answer this question, you either refer to the P-value or the F-statistic, when you have both it is your choice. Your Professor was good enough to facilitate your having both. Remember that if the P-value is smaller than the LoS, you reject H0; and if F-computed is greater than F-tabulated, you reject. THAT IMPLIES THAT P-VALUEF-TABULATED. IN BOTH CASES YOU REJ ECT THE NULL HYPOTHESIS. 1.31?10-10

Travelling As A Source Of Learning English Essay

Travelling As A Source Of Learning English - Essay Example English is an international medium for communication. On an international front, English plays an important role in binding contracts between governments of two countries (Riches and Curt-Christiansen). Therefore, it is deemed critical for professionals from several fields to develop English language. On the other side, in some Asian countries, English is considered as a status symbol. It is believed to be a communication medium of upper social class. Additionally, those individuals, who are not a native English speakers are believed to be excellent learners of this language because they attempt to increase their linguistics. This essay attempted to analyze the importance of traveling across various cultures in the development of advanced linguistics in youth. At the same time, I have been able to dwell on my strong skill of tongue because of my frequent international traveling experience. English is also considered as an international medium of communication. Therefore, used in fabricating various international contracts among nations. Hence, in the light of this argument, politicians should develop their English in order, to understand the embedded meanings of a legal document. On the other, as a student of English, I consider it as my duty to understand English better than anyone in the world does. However, to accomplish this goal, I am regularly reading ancient English literature in order to; understand the very roots of English. On the other hand, my teachers helped me, during my quest of learning English.

HOW CAN I INCORPORATE DIVERSITY INTO EARLY CHILDHOOD Research Proposal

HOW CAN I INCORPORATE DIVERSITY INTO EARLY CHILDHOOD - Research Proposal Example Topic (500 words recommended) What literature relates to this topic? Have you indentified the key literature sources (3-5) that underpin your research? Why do we need to conduct research into this area? How is this topic relevant to early childhood education? Diversity is a term which has as diverse meanings as its name. In this research â€Å"diversity means the variety of differences among inhabitants that we need to take into account if we are to work with people† from every walk of life. In short here we are treating diversity as a dynamic social force in society which tries to bring people closer to each other no matter what or who they are (Aguirre, 2003). But if the topic is closely analyzed a question which comes to one’s mind is that what is the relation of diversification and early childhood, as mostly it is seen that diversification in human beings become prominent when they are adults. The impeding question is that why it is important to incorporate diversif ication in to early childhood programs when it is believed to be inculcated automatically when the up bringing of the child begins. One of the articles which would be referred will be article â€Å"Valuing Diversity† written by Maritza MacDonald (2002), in that article one of the examples that is given is that for every child, family has a different meaning. For some it means a single parent catering to the child needs, for others it means having a lot of older brothers and sisters etc. so when even the meaning of a family can be so diversified for a child who is not even aware of the fact what diversification is, then it can be imagined that how much affect diversification can have upon a child’s rearing. Another consideration will be given to the practicality of inculcating diversification into early childhood education programs. â€Å"Multicultural Education: Issues and Perspectives† written by Banks & Banks (1989) and â€Å"The care and education of young c hildren† by Comer (1989) proposed that early intervention programs for children mostly deal with the issues like how do different children learn through various types of education methods. This literature would be beneficial to first of all address any issue that might surface due to lack of proper communication between children belonging to different ethnic groups. It will also help in elucidating the aspects as to how can parents up bring their children in the diverse world? And what is the meaning of being a young one who is growing up in to this varied world? (Gonzalez-Mena & Pulido-Tobiassen, 1999). This diversity issue is important to be addressed in the early childhood because foundations for hatred and racial discrimination could be developed between the ages of 3 to 5, so it very critical to give diversity and anti bias training to children when they are young (Stephan & Vogt, 2004). Racism and hatred for each other are two things which if not nipped in the bud can ca use problems like extremism and terrorism. No parent can see his child going towards destructive path, therefore to see what changes can be brought in to child’s behavior and to observe how these changes can help us in the long run to irradiate problems like racism, and extremism incorporating diversity in early education programs might be helpful. 3. Research aim In general, what is the aim of your research project? Is your aim clear, understandable and concise? Is your aim relevant to the topic and identified

Law and Ethics Essay Example | Topics and Well Written Essays - 2000 words

Law and Ethics - Essay Example This leads to prevalence in property crime in poverty stricken areas. Generally, children who are brought up in poverty have a high propensity to commit crime which is further accelerated by population factors (Siegel & Worrall, 2011). A child from a poor background is more likely to involve in criminal activities than one from a well off background. In addition, populations that are majorly composed of young generation below 25 years and jobless at the same time, results in higher crime rates than a scenario old poor generation people. Moreover, the poor face more frustrations in life and are therefore more predisposed to mental illnesses than the rich and the affluent (Siegel & Worrall, 2011). The mental stresses and instabilities may lead individuals to commit violent acts, robbery and theft. At the same time, poverty causes the youth to view education with less prestige since they feel it does not warrant access to good jobs. Most poor youths do not have a connection with mentors and role models due to perceived or actual inferior education. The feeling will facilitate their forming groups and gangs which are a leeway to crime. Homicide Before making a decision on the fate of the woman, I would solicit to know the reason for her conduct towards her husband given that she knew that the husband was drunk. The husband is considered as not being of a stable mental state in his drunkenness (Siegel & Worrall, 2011). I would also establish the woman’s true intent for loading the gun as well as how long the argument had taken to warrant application of self defense. Based on the already stated actions, I feel the woman had an aforethought to kill the husband, that is why she went up the first floor and loaded the gun. She did not show any interest to withdraw from the fight. On coming back with the loaded gun, she found her husband holding a kitchen knife. However, she is not clear on the reaction of the husband when he saw her with a gun. Her argument that h er husband wanted to stub her is a hoax, she had a criminal intent to kill even before she saw the knife. As the prosecutor I would charge the woman with a first degree criminal homicide/murder. This is because the murder had been premeditated, was deliberate and was accompanied with malice on the woman’s side. This is further strengthened by her insistence that she was only defending herself from harm by the drunken husband. Although the woman claimed to have been provoked into action by the husband, there is no evidence that she did not have tie to cool off. The Ethics the Federal Bureau of Investigation (FBI) using Combined DNA Index System (CODIS) Forcing arrestees to provide DNA samples irrespective of the charges that have been placed on them and the possibility of conviction is unethical. This is so because the results empower the police officers to provide intimate results and evidences to the government; these have the ability to lead to investigative arrests (Siegel & Worrall, 2011). This phenomenon is opposed to the desired procedures where the juries and judges ought to be the custodians of such information. Although DNA sequencing produces reliable results, it presents ethical, legal and social shortcomings. It has raised questions on privacy matters (Siegel & Worrall, 2011). Unlike fingerprints that are used for identification only, DNA provides insight into several intimate and personal aspects of individuals such as susceptibility to some diseases, predisposed to

Provide an explanation that reconciles this research finding with Coursework

Provide an explanation that reconciles this research finding with expectancy theory - Coursework Example Expectation theory operates on the premise that people choose a certain course of action because they find it more rewarding because of the desirable outcome. This desirable outcome can come in several ways either that the individual will become more successful and/or that there is remuneration that awaits for choosing such course of action. We can set the example in a sales organization where sales people are given high quotas which entail high compensation in the form of commissions and salaries and other perks (including recognition and possible promotion) and mediocre quotas where they are only given basic pay. Sales people will tend to prefer the more difficult goal of having high quota because its outcome is more rewarding and desirable. In sum, when difficult goals are established that it is more rewarding and has more desirable outcome, individuals would prefer it rather than mediocre goals that has little reward or less desirable

BUSINESS PLAN Essay Example | Topics and Well Written Essays - 750 words

BUSINESS PLAN - Essay Example Founded by Jorge Tapia, this testing facility furnishes a learning platform for local students studying in private and public schools, universities and graduation programs. There are two categories of authorized Cambridge ESOL centres, internal and open centers. Open centre have authority to conduct examinations for all candidates, regardless of whether they are enrolled in the institution or not (University of Cambridge, 2013). Vision statement Our corporation aims at educating masses of Guayaquil, helping them to gain fluent grip over English language within least time period and at lowest costs and thereby achieve success in globally recognized examinations. ... s: Strong barriers to entry by currently existing businesses Strict regulations, quality standards and close surveillance by Cambridge Market study This centre shall aim at catering students residing in localities of Guayaquil and Quito and other neighboring suburbs of Ecuador. Educational reforms in this region is one of the most underfunded and neglected national aspects (Pineo, 1996). Moving towards urbanization, these highly populated areas of Ecuador are gaining educational awareness. Recent statistics show that 37.6%, 34% and 12.7% of population has easy access to primary, secondary and superior education respectively. About 62% of total population (9.1 million people) represents the age group that can be targeted for providing FCE education while 66% represents the urban educated population (INEC & Quito Town Hall, 1990 & 2002). Mostly adults, especially males, have received some form of education, thereby indicating that masses are inclined to take educational measures (Carri on and Vasconez, 2003). Majority of citizens are moving towards learning English since this is the dominant language that is needed for public dealings and communications in foreign ties. Therefore, it has become a necessity for them now. To cater this, large number of institutes exists currently in both the territories that have a well-established market share and reputation, including Southern Cross Teacher Training Centre, EF School of English and British School of Language. However, I claim to provide exclusive and differentiated services to students with excellent trained faculty, career counseling mentors, technology-based teaching methods, tailored services and individual attention for each student at lowest costs. Marketing strategy Since these areas of Ecuador are most populated

Response & Recovery Essay Example | Topics and Well Written Essays - 1000 words

Response & Recovery - Essay Example After doing this, the second step I need to do is to perceive imposing hazards that can affect the safety of the people and the environment. This entails securing the area to prevent accidents and further casualties, which might eventually lead to evacuation of people or residents within and around the area of disaster; as well as the potential hazards that rescue personnel and the affected community may face (Emergency Management Institute – FEMA, n.d.). The following step that I need to do after the first two aforementioned steps have been undertaken is to set up initial priorities and urgent supply necessities which take on the need to process requirements in terms of equipment, personnel, facilities and supplies that will support the activities for response and recovery operations. This phase of the operation is quite critical because everybody involved needs to be on an equal footing that puts strict compliance to having personnel who are trained for such situations with knowledge in the use of common terminology pertaining to incident amenities; the position or title of designated supervisors/heads; the role of each present organization within the recovery operations; and the description of resources. ... It is vital to the whole operation that a chain and unity of command is established before the whole operation actually proceeds. This will enable every individual involved to report to a selected supervisor that I will be assigning, thus eliminating the possibility of being given several contradictory orders that can affect the smooth flow of communication and field work. Having a unity of command allows different agencies (local, state or federal) to work as a cohesive unit and effectively mete out the desired services as expected. There is also an essential need for responders to have and know entrance and exit routes, making the staging area an efficient workplace for everybody (Emergency Management Institute – FEMA, n.d.). Parallel to the abovementioned paragraph is the organization of priorities which I will do. The first priority is always the safety of all the personnel involved in the operation since another loss of life or another casualty may undermine the self-conf idence and self-esteem of the staff. Making the place of the incident safe from further damage is the second priority to do away with accidents and further loss of lives. The third priority is the preservation of property, where relief operation personnel implements procedures to safeguard possessions within the vicinity of the disaster (Emergency Management Institute – FEMA, n.d.). Likewise, I need to be very specific about the goals of the operation that must be finished within a specified timeframe or period. The goals must be realistic and feasible; and must be within the authority that was vested on me as Incident Commander (Emergency Management Institute – FEMA, n.d.). Additionally it is

Hurricane Charley Essay Example for Free

Hurricane Charley Essay Trees down every where, houses crushed, roofs gone, thousands of people without power, cars damaged, people dieing. Hurricane Charley was perhaps one of most devastating events that I have ever experienced, in my entire life. The next morning after hurricane Charley hit, we drove outside and saw the devastating remains that Charley left. The roads were full of chaos, with no traffic lights, and the gas lines were insanely long. I was very fortunate to only loose my power and cable, in comparison to some people loosing a loved one. This hurricane caused approximately $20 billion in damages, which is nothing compared the 19 lives it took. I learned to never underestimate the effects of a hurricane, always be prepared for a hurricane, and to always think and help the less fortunate. Hurricane Charley wasnt perceived as a very powerful hurricane to a lot of people as it progressed more towards Central Florida. I feel that a lot of people were not very prepared for Charley, just as I wasnt. When I heard about this hurricane coming I thought, Oh, another hurricane coming, there is going to be a lot of rain. I didnt think it was going to be a big deal at all. After the hurricane hit, I realized that I was completely wrong. One should always be prepared for a hurricane. I think that this statement is most definitely true, and should be carried out by everyone. Every household should have plenty of water, money, gas, batteries, flashlights, and many other things stashed away in their houses. There were major gas outages at the gas stations, because people were filling up their generators and cars. One of the major problems was that almost everyone was out of power, so you could cook or keep things cold without a generator. This lead to everyone needed ice to keep their very expensive groceries cold. When I looked back at what resulted from Charley, I actually feel fortunate. Yes, Charley did cause my dad lost business, left a lot of yard for me, left power and cable outages, and hundreds of dollars of meat to go bad. When I thought about this I felt kind of unfortunate but, when I thought about the people that starve day after day on normal bases in places like Africa, I feel fortunate. A lot of people in other countries dont ever have power, cable, or even houses for that matter. I think that after events like this,  we should all pull together and help one another. Volunteer to help your neighbors and people that had it worse then you, have free barbeques with your meat that is going to go bad anyway, and most of all give everyone moral support. I think that Charley was a very important learning experience for a lot of us and should be thought about in different views. If you think about it, were you that effected by hurricane Charley? Did you take your power for granted? Were you well prepared for this hurricane? Did you underestimate Charley? All of these are important things to think about as you look back on Charley.

Turkey Joining the European Union Essay Example for Free

Turkey Joining the European Union Essay In December 1999 Turkey became an official candidate for joining the EU, along with a number of other developing countries, mainly of Eastern Europe. After fundamental studies of current situation in Turkey and its future outlooks, followed by a series of negotiations between the representatives of Turkey and the EU, it became clear that it would take not less than a decade for Turkey to make necessary reformations and meet the Copenhagen criteria. There are different opinions on the issue of possible effects of Turkey joining the EU. The country has many proponents in its desire to create a common future with the EU. But some political, economic and cultural problems can create difficulties for Turkey on its way to the EU and can come out with unpredictable effects on social wellbeing of European nations. This work is an attempt to show that Turkey joining the EU can result in a number of negative and undesirable consequences, both for Turkey and for the European community. The population of Turkey exceeds 70 million people of diverse ethnic origins, and its major territories are located in Asian continent. Geostrategic location of Turkey is important, because the country controls navigation along the Bosporus and four seas nearby. Turkey has a long and dynamic history. The roots of Turkish nation go back to a number of early Asian civilizations united into the powerful Ottoman Empire. Modern history of Turkey started in the 1920s, when a military leader, Mustafa Ataturk, won the Independence war and founded the Republic setting the country on the way of democratic development and westernization. Current Turkish economy is a mix of heavy industry and traditional agriculture. Economic indexes show that the economy is quite poor (GDP is only $358.2 billion), but at the same time it is steadily developing (GDP growth rate is 5.2%) (CIA).   Principal industries are textile, food processing, construction, mining and electronics. Also, Turkey is one of the main importers of commodities from Germany, Russia, Italy, China, etc. Turkey has very advanced and up-to-date communication and transportation infrastructure, but the greatest asset of the country is its people, as well as their highly-respectable moral values. It is possible to name several major drawbacks which seriously influence the position of the EU countries toward granting Turkey the EU membership. Paul Kubicek writes in his study of the problem of Turkey’s accession to the EU: â€Å"Turkeys supposed shortcomings are well-known: it is too big, too poor, too agricultural, too authoritarian, and, perhaps above all, too Muslim† (Kubicek, p.33). A specialist from Stockholm University Harry Flam considers political reasons to be the most important obstacle (Flam, p. 171). According to the Copenhagen criteria, the EU membership requires: â€Å" stability of institutions guaranteeing democracy, the rule of law, human rights and respect for and protection of minorities† (Flam, p. 175). For some last years political situation in the country has been changing since the Justice and Development Party came to the power. Its leader and current Prime-Minister, Recep Tayyip Erdogan, proclaimed joining the EU to be one of his main political goals and directed the efforts on implementing necessary political reformations to meet the Copenhagen criteria. Turkish Constitution sets the military as the exclusive guarantor of internal security and empowers it to take over the situation in cases of political instability or a social crisis. Certainly, such crucial role of the military does not correspond to the idea of democracy, because army should be controlled by government. Nevertheless, Turkish authorities do not accept this position, being supported by public opinion. Another substantial political problem is minority and human rights. There is a large Kurdish minority with population of about 13 million people (around 20% of the country’s total population), which is concentrated in southeastern regions. Turkish government takes Kurdish nationalism as a serious threat to the existing integrity of the country. That is why Turkish laws prohibit official use of Kurdish language and other expressions of their cultural identity. For decades there were severe restrictions as to such issues as religious education, rights for communal property and others. Finally, one of the greatest obstacles on the way to the EU is refusal of Turkish government to recognize the Republic of Cyprus, a current member of the EU. Claiming for receiving the whole territory of the island, for some decades Turkey has been ignoring the Greek side of Cyprus. Therefore, as Turkey refuses to recognize a member of the EU, the negotiations with the European community can not be held. In addition, Turkey will have a dangerous impact on foreign policy of the EU bringing the borders of the Union closer to volatile Middle East. This may affect external political affairs of the EU. Economic factors are, probably, the most depressing. Turkish economy is making progress, but still remains very poor and the situation will not improve in the nearest future. Currently Turkey reached only 1.9% of EU25 GDP, and with average annual growth of 5%, it would be only 2.9% of GDP in 2015. Moreover, country’s GDP per capita is only 27% of the EU average (CIA). It is obvious that country with large population and poor economy will affect general economic situation of the EU. Turkey will need a lot of investments, budget transfers, special privileged tariffs, and other resources to stimulate country’s economy. A serious problem of Turkish economy, which is a point of concern of the EU specialists, is agriculture. Its contribution to GDP exceeds 14% and, at the same time, the majority of labor force (over 33%) employed in agriculture. But agriculture in Turkey needs considerable governmental support, which results in heavy taxation burden on national taxpayers. Turkey does not have a lot of arable lands, that’s why cultivation and farming are very expensive. Flam underlines possible problem for the European community, saying that â€Å"†¦the size of the Turkish agricultural sector threatens to be costly for EU taxpayers if Turkish farmers are to have the same terms as the farmers of the CCEC-8†¦Ã¢â‚¬  (Flam, p. 186). Other disadvantages of Turkish economy include considerable regional inequality and necessity to restructure labor market. Overwhelming majority of Turkish industries is concentrated on the West and the North of the country, while Eastern parts rely more on agriculture and remain considerably underdeveloped. Turkish labor market needs to be reformatted in order to use its potential and improve low unemployment rates, especially among youth and women. Religious issue is, probably, the most controversial among the others. With its 98% Muslim population, Turkey will be the only non-Christian community in the EU. Undoubtedly, such a huge Muslim population will contribute to the development and acceptance of multiculturalism in the Union, but in a secular society this issue is rather complex. Turkey itself has a long history of serious difficulties and conflicts between religious leaders and the state. In addition, many specialists fear that Islamic conservatism and numerous traditional restrictions will cause serious pressure on personal freedoms. Many associate Muslim countries with terrorism and cruelty, but it can not be said about Turkey. The analysts argue that despite possible difficulties based on religious factor, prevalence of Islam in Turkey must not be a reason for Europe to turn its back to Turkey. Kirsten Hughes writes: â€Å"At a time, when the ‘war on terror’ is creating global tension †¦, Turkey’s relations to the EU take on a broad geopolitical significance.   A rejection of Turkey by the Union would be taken as a strong negative signal by many† (Hughes, p. 26). Many specialists suppose, that not only religious, but other cultural differences will bring to negative outcomes of Turkey’s assertion. They think that cultural problems may cause difficulties for Turkish population when integrating into the European community. Some years ago, the chairman of the European Convention on the Future of Europe, Giscard d’Estaing, said that he was against Turkish membership because Turkey had â€Å"a different culture, a different approach, a different way of life† and â€Å"its capital is not in Europe, 95 percent of its population is outside Europe, it is not a European country. (Flam, p.176)† Crowded Turkish Diaspora in Germany, which counts more than 2.5 million people, is the brightest example of this idea. Many Turks go to Germany in order to find better career opportunities and better-quality life. Turkish people get adapted to European life-style rather fast and, usually, express no desire to be back to their poor homelands, but very frequently serious cultural disconnections take place. Turkish immigrants reject European moral norms and customs and often their children have to stand for the consequences. That is why potential migration of Turkish people to the EU is considered as a serious threat to cultural unity of Europe. Europeans remember that after accession of Bulgaria and Romania to the EU, thousands of people from these poor countries hurried up to move to Germany, France, Italy and other developed lands to find some work and earn some money. Recent researches demonstrated that if Turkey were accepted to the EU, about 44% of Turkish population would look for better job somewhere in Europe (Kubicek, p. 38). Demographic issues can also be taken both in favor and against Turkey. It has a good population growth rate (1,06%), and more than 25% of the population are children below 14 (CIA). Thus, Turkish nation is very young, and this is quite attractive for aging European community. But, on the other hand, in case of accession, Turkey will become the most crowded country in the EU. Therefore, it will take a large number of seats in the European Parliament and become a powerful player. That is undesirable for European parliamentarians, who are aware of inflexibility and intolerance of Turkish diplomats on many crucial issues. There are many other key matters, which remain in concern of the EU experts. They include the problems of meeting the requirements as to environmental standards, or the implementation of many democratic reforms, the problems of corruption, which is especially prevalent and deep-rooted in the highest levels of public sectors. Finally, a very important problem is limitation of the freedom of expression and censorship in Turkish media. Nevertheless, it must be mentioned that currently there is a great number of positive and progressive reforms are initiated in the country. In particular, educational opportunities are becoming more equal, that’s why teenagers and youth from different remote areas on the East are getting more socially mobile. Democratization, together with the increase in communication, is among the key factors, which brought to a rise in awareness. Therefore, according to the Copenhagen criteria, a sequence of political and social changes must be made by Turkish government in order to see the door to the EU opened. But still there is no guarantee for Turkey on its accession. Besides, with its decision regarding Turkey, the EU relies not only on the opinion of its members, but also on the idea of other major political powers, like the U.S. â€Å"In Washingtons eyes, Turkey has transformed from a Cold War bulwark against Soviet aggression into a critical bridge linking the industrialized Christian West to the pre-industrial Muslim East.† (Robbins, p.17). Some specialists can see possible benefits of Turkey joining the EU, especially for dynamic and developing European community. Paul Kubicek summarizes his research on the problem â€Å"Turkey the EU† with the following statement: â€Å"Turkish membership is at least another decade away and its accession is far from assured, but the very prospect of Turkish membership presents the EU with many challenges and opportunities† (Kubicek, p.32). Nevertheless, there are more problems and uncertainties which can create serious difficulties for Turkey and the EU both on internal and external stages. This thought is greatly summarized by Gerard Baker, who resumes that: â€Å"Fear of the economic consequences of admitting millions of relatively low-paid workers into the European labor market, together with rising concern over the dilution of European identity by an alien Middle Eastern culture makes the idea of Turkish membership highly unpopular† (Baker, p.26). Works Cited:  ·Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Baker, Gerard. Let’s Not Talk Turkey: Guess Who Won’t Be Joining the European Union Anytime Soon. The Weekly Standard. Vol. 010, Issue 46 29 Aug. 2005: 26-30 ·Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Flam, Harry. Turkey and the EU: Politics and Economic Accession. CESInfo Economic Studies. Vol. 50,   Jan. 2005: 171-210 ·Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Hughes, K. Turkey and the European Union: Just Another Enlargement? Friends of Europe. The European Commission. June 2007. 3 Dec. 2007. http://www.friendsofeurope.org/pdfs/TurkeyandtheEuropeanUnion-WorkingPaperFoE.pdf. ·Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Kubicek, Paul. Turkish Accession to the European Union: Challenges and Opportunities. World Affairs. Vol. 3 Fall 2005: 32-41 ·Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Robbins, Gerald. Germans Are Talking Turkey; The European Union Is In No Rush to Expand Into Anatolia. The Weekly Standard. Vol. 010, Issue 44 2 Aug. 2006: 16-17  ·Ã‚  Ã‚  Ã‚     Ã‚  Ã‚  Ã‚  Ã‚   Turkey. Central Intelligence Agency. The World Factbook. 15 Mar. 2007. 3 Dec. 2007. https://www.cia.gov/cia/publications/factbook/geos/tu.html.

Anti Jerk Control Of Hybrid Electric Vehicles Engineering Essay

Anti Jerk Control Of Hybrid Electric Vehicles Engineering Essay This interim report consists of three chapters explaining the initial study and research into anti jerk control of hybrid electric vehicles. This project aims at electrification of anti-jerk control in hybrid vehicles by using the hybrid vehicle electric motor to damp these oscillations and to analyze its effect on fuel consumption, comfort and sportiness of the vehicle and then to compare the results with fuelling only method. This project will also include studying the impact of passive damping with DMF in these vehicles. As a part of this project, a model of a hybrid diesel engine driveline with DMF will be developed using Simulation X and an active feedback control for an electric motor will be designed to permit active damping of these oscillations. The results obtained from simulating the drivelines modeled using Simulation X will be observed for driveline vibrations with respect to the frequency range and also the range in which the jerking frequencies affect the passengers inside the vehicle so as to concentrate on it specifically leading to maximum reduction in jerking of driveline. The models so developed will then subjected to design modifications and investigation in accordance with the control strategies developed and affect of the same will be observed on all the drive train models with level of jerk control achieved. Finally Suggestions will be made on effect of electric motor on hybrid drive train in damping the driveline oscillations, fuel consumption and sportiness of the vehicle also comparing it with the conventional drive train models. Introduction In the age of technology where everyone is concentrating on improving the products by bringing in sophisticated technologies from cars to airplanes, we as human beings neglected the environment factor over the years. 20th century was called an industrial age and much technological advancement have been made in this era which revolutionized the whole world. One of the industries which is closely related to connect our daily life are automobiles. Automobiles have grown rapidly over the years with stiff competition among automotive manufacturers across the world. As the time passed by people become more demanding with their interests widening the automotive market and also the fact that automotive majors started delivering those demands. These technological improvements along with human comfort factors all of us forgot about the effect on environment. The number of vehicles on roads grew exponentially and consumption figures of petrol and diesel across the world increased drastically sending out alarm bells to search for alternate fuel technologies as the conventional petrol diesel were not only running out from their existence but also affecting the environment leading to considerable amount of CO2 emissions and further contributing to global warming. This future problem opened up opportunities for research in alternative fuel technologies leading to the development of Hybrid vehicles, Fuel cell technologies Hydrogen fuelled cars. Few of the alternate fuel vehicles are Toyota Prius hybrid, Honda Civic hybrid, Honda Insight etc which have received good response in the market in terms of performance as well as in reducing CO2 emissions and have successfully proved their presence in the market with their selling volumes and fuel savings. On a smaller level, these developments lead to further research in areas like DC/AC motors, fuel cells, battery pack technology, advanced controller design, power optimization and new concepts which can be used as alternate fuels. Problem Definition Commonly in every engine driven system issue of noise, vibration and harshness (NVH) comes along with it. Automotive manufacturers have always tried to maintain healthy comfort to performance ratio so as to attain maximum customer satisfaction. With respect to comfort of driving, the manufacturers main aims are to provide vibration free driving pleasure as much as possible and the same applied to hybrid electric vehicles. One such area of concern in drive line jerking which affects the overall drivability. Jerking is a kind of driveline oscillations which occurs due to excitation caused by sudden or huge variation in engine torque or driveline load. These excitations cause because of torsional vibration of drive train at high engine torques leading to unwanted longitudinal oscillations of passenger compartment which reduces the riding comfort and drivability. These oscillations have tendency to occur at low engine speeds which are experienced as unpleasant jerking effect by the drive r. Due to the fact diesel engines produce high torque at low engine speeds, makes these engines more prone to this problem. The area of concentration under this case is vibration frequencies ranging between 2- 10 Hz as human body is sensitive towards this frequency range causing unpleasant driving experience. These driveline oscillations majorly occur during tip in and tip out conditions. In conventional diesel engine vehicles methods like active control of fuel injection into engine and passive element such as dual mass flywheel are used to permit feed forward active as well as passive damping of these unpleasant oscillations in idle, tip-in/tip out and coast conditions. To achieve minimal amount of driveline oscillations, vehicle manufacturers have to compromise between comfort and performance of the vehicle. In diesel hybrids, the jerking can be controlled by varying fuel injection and electric motor torque control and also passively by an additional dual mass flywheel (DMF). Aims Objectives The aims and objectives of this project are: To develop a model with three different configurations of powertrain using Simulation X those are: Conventional diesel engine, Conventional diesel engine with DMF and finally hybrid power train with DMF. To study the effects of jerk in each individual power train configuration before developing the control strategy for anti jerk control. To electrify the anti jerk control in hybrid vehicles by using Crankshaft integrated stator/generator to damp the oscillations. To analyze the effect on fuel consumption, comfort and sportiness of the vehicle. To compare the results with conventional fuel control method. Literature Review Hybrid Electric Vehicles Hybrid Electric Vehicle is the one which uses two or more sources of energy to propel the vehicle which consists of an internal combustion engine and electric motor power by batteries. Hybrid vehicles are of various types such as series hybrid, parallel hybrid and combination of series parallel and based on their hybridization factor they are categorized into micro, mild and full hybrids. Figure 1, below shows the typical power split type power train. Generally, hybrid power trains are costly to build due to its complexity but the costs are paid off against the running costs due to improved fuel efficiency. Regenerative braking plays an important role in conserving energy by charging the battery pack. Figure : Showing a Power Split Hybrid Powertrain Types of Hybrid vehicles based on drive train structure Parallel Hybrid In parallel hybrid vehicles, there are two parallel ways for transmitting power to the wheels of the vehicle; those are by engine and by electric drive, as shown in below figure 2. The transmission is coupled with the motor/generator and the engine, allowing either, or both, to power the wheels. Control architecture of parallel hybrid vehicles is more complex compared to a series hybrid due to the requirement of efficient coupling of the motor/generator and engine so as to maintain optimum drivability and performance. Figure : Parallel Hybrid Powertrain Operating modes available in parallel hybrid vehicles are: Engine only traction Electric only traction Hybrid traction Regenerative braking Series Hybrid In series hybrid there is only one way for transmitting power to the wheels of the vehicle, but consists two energy sources. As shown in figure 3, the conventional engine is coupled to a generator for charging the battery pack which provides electrical energy to a motor/generator to power the wheels via transmission. The motor/generator can also be used for recharging the battery during braking and deceleration. Figure : Series Hybrid Power train Operating modes available in series hybrid vehicles are: Electric only traction Electric traction battery charging Battery charging and no traction Regenerative braking Series-Parallel (combined) Hybrid electric vehicles A Series-Parallel (combined) hybrid vehicle has both the aspects Series and Parallel energy transfer paths. As shown in figure 5, a system consisting of motors and/or generators consisting of a gearing or power split device allows the engine to recharge the battery. Changes in this power train configuration can range from simple to very complex type depending on the number of motors /generators and their working terminology. These configurations can be called as Complex hybrids (such as the Toyota Prius and Ford Escape Hybrids), Split-Parallel hybrids, or Power-Split hybrids. Figure : Series-Parallel (Combined) Hybrid Power train Driveline Jerking Driveline jerking also called as driveline oscillations can occur due to many different factors such as load changes, gear shifting and also the condition of the road. In recent times, direct injection diesel engines with extensive refinement of components and significant weight reduction in driveline lead to the problem of driveline jerking. Also with advancement in diesel engine technology over the years, output torque of these diesel engines has risen tremendously for passenger cars effecting the comfort and drivability. The problem with high engine torque is, it causes torsion of driveline due to the gear ratios of the final drive causing the torsion at drive shafts which in turn causes whole power train to oscillate with combined effect of vehicle jerking. Figure 5, shown below show the measurements on a test car caused by tip in behavior in which driver suddenly steps on the throttle combined with high torque gradient and tip out condition, the back out maneuver. Figure : Engine torque and engine speed for tip in and tip out maneuvers. Though the oscillations caused by engine speed are somewhat absorbed by engine mounts but the oscillations due to wheel speed is responsible for horizontal vibrations of the vehicles longitudinal acceleration affecting the performance of the vehicle which is experienced directly by passengers. To restrain these oscillations affecting the comfort and drivabilityfor the passengers, damping of these driveline oscillations is necessary which is referred to as Anti Jerk Control. The oscillations leading to power train jerking in conventional power train can be categorized by the Eigen frequencies of following driveline components: Torsion of shafts causes pitching and jerking due to suspension system, mass of the vehicle and damping. The range of frequency for this cause lies between 2 5 Hz. Also, we know that the natural frequency of the vehicle with respect to pitch motion is lies between 1 2.5 Hz. The frequency of oscillations caused by engine movement and mounts lies in the range of 15 200 Hz. The vibration due to gearbox assembly lies in the frequency range of 50-80 Hz. There are oscillation depending upon the type of engine, no. of cylinders, engine speed and also the combustion process shown in below figure Table : showcasing different engine types and their Eigen frequencies Engine Type Multiples of Eigen Frequency 4-Cylinder ,R4, 4-Stroke 2,4,6,8,10 6-Cylinder,R4, 4-stroke 3,6,9 6-Cylinder,V60,4-Stroke 1,5, 3, 4,5, 6, 7,5, 9 6-Cylinder,V90,4-Stroke 1,5, 3, 4,5, 7,5, 9 12-Cylinder, V60, 4-Stroke 6,12 From the above categorization of the components and their respective Eigen frequencies, the main aim is to narrow down on the components leading to vibrations which are felt by passengers majorly and to minimize the level of vibrations by designing model based predictive control strategy while retaining the performance of the vehicle as much as possible. Hybrid Vehicle Design The power train which has been considered for testing the jerking behavior and the anti jerk control strategy to be designed is shown in the below figure 6. This power train is one of the possible hybrid vehicle architecture consisting of I.C engine, CISG (Crankshaft Integrated Starter/ Generator), Dual Mass Flywheel (DMF), Clutch, Gearbox assembly , High voltage battery pack and power electronics. Figure : Hybrid Vehicle architecture In operation, at lower rpm the vehicle acts as pure electric vehicle powered by the on board battery pack and at higher rpm, both electric drive and I.C engine together produce required power by the vehicle. The percentage of power transmission sharing to propel the vehicle plays an important role in determining fuel efficiency. Design Considerations The components and factors which play important role in hybrid electric vehicle design shown in figure 6 are: Engine design and selection: The I.C engine as in conventional power train plays an important role in hybrid vehicles. Generally, engines designed for hybrid vehicles are smaller in size compared to conventional vehicles. Though the design selection of the engine is completely based on the power requirements of the vehicle. Crankshaft integrated starter/generator (CISG): The starter/generator is device which is controlled electronically. It combines both the functions of a conventional starter and generator into a one single unit. The motive of single CISG unit is replacing the starter as a single entity which is passive in nature; need to replace the old fashioned belt and pulley type connection between the alternator the engine. Also to replace the modern day rotor wound alternators with slip rings and brushes. The integrated starter/generator works as a bi-directional device which converts electrical energy to mechanical work and vice versa. As a electric motor, it assists in starting the I.C engine without any noise and also much quicker than conventional starter. As a generator it produces power required for electrical components of the vehicle and is also used to charge the batteries. Commonly integrated starter/generator is placed between engine and gearbox assembly. The main operating features of ISG are it enables stat/stop, onboard power generation and acts as power assist when required. Figure : Integrated Starter / Generator. Dual Mass Flywheel (DMF): Dual mass flywheel consists of two flywheels connected by long arc travel springs located between I.C engine and clutch or transmission. The first DMF was introduced for the automotive industry in 1985. At that time non lubricated dampers were used consisting of heavy springs which were problematic. Then there was breakthrough in the DMF technology and arc spring type dampers was introduced in 1989 solving almost all the problems which were caused by DMF earlier. Due to the high cost of this product not everyone was interested but was used in large vehicles. Though DMF is a passive driveline element, it has been proven that DMF reduces torsional vibrations to certain extent and plays an important role in anti jerk control of hybrid vehicles also. The operating performance of DMF can be characterized by the spring rate and its damping characteristics. The dual mass flywheel consists of following important characteristics: Primary and secondary inertias. The torsion damper rate. And the damping characteristic. Advantages of using DMF in conventional power train are: Segregation of torsional vibrations: we know that, torsional vibrations are caused by torque fluctuations. A vehicle is a kind of vibrating system with all the components like engine, transmission, drive shafts etc all contributing to the cause. Below figure 8, shows the simple driveline model so as to observe vibration behaviour. In this case engine and transmission are supposed as rotating inertia connected by springs. The spring C2 represents the spring damper characteristics and spring C3 showing the stiffness of the drive train. Figure : Drive train with vibration modes. Figure 9 shown below depicts the fluctuations in vehicle speed and in this case damped resonance occurs at around 1700 rpm. The main aim of DMF is to sideline the vibrations occurring from the engine as far as possible from the rest of the driveline components. Also the figure compares the difference between the extents of vibrations in a conventional drive train compared to one fitted with dual mass flywheel. Dual mass flywheel efficiently reduces the engine vibrations and reduces gear rattle, helps in saving the fuel consumption and also improves driving comfort. Figure : Comparison of vibration damping in a conventional drive train to the one with DMF Transmission assistance: As DMF is said to reduce the engine vibrations, it has positive effect on the transmission system as the stress induced will be significantly less compared to a compared drive line increasing the transmission efficiency and cycle life. Crank shaft assistance: In a conventional power train, we know that flywheel and clutch are connected to engine crankshaft rigidly and due to the inertia of the flywheel high reaction forces are developed on the crankshaft. But in case of DMF, the secondary flywheel can be neglected for bending load case as it connected loosely to the primary flywheel by torsional damper and roller bearings which practically dont allow high transferable reactive forces. The primary flywheel is significantly lighter in weight, more elastic in nature compared to conventional flywheel. Battery pack design and selection: The main criteria in battery design and selection depend upon the capacity, the output characteristics based on type of battery pack to be used, cycle life, cost, scope of reusability and whether recyclable on not. The size and weight of the battery pack depends on the capacity requirement. If capacity is high, more will be size and weight of the battery pack. In fact, battery pack design plays a very important role as the performance of the vehicle is dependent on the overall weight of the vehicle. In case battery pack is heavier, this would have direct impact on the power consumed to propel the vehicle which is set to rise with increase in battery weight and will also reduce the operating range of the vehicle. Figure : Typical Battery pack arrangement Electric Motor: Generally AC, DC and PMDC electric motors are used in hybrid vehicle depending upon the requirement and usage. In automotive industry, certain motor specifications are not acceptable due to their inability to meet the specific requirements such as power rating at peak load conditions, continuous power supply, volumetric power density, cost, efficiency, weight, lifetime, level of protection against water and dust. Gear box assembly: In hybrid vehicles, mostly a power splitter device is used which is consists of planetary gear set allowing power flow from two power generating sources to propel the vehicle. The I.C engine is generally connected to Sun gear while electric motor is connected to the planet gear. Clutch: It is found in every vehicle with manual gearbox. Though the use of clutch varies from one hybrid drive train to another depending the gearbox being used as most of the hybrid power trains use automatic transmission which dont require clutch. The main purpose of clutch is to assist the vehicle starting off from stand still position as it compensates for the speed difference between engine and the driveline and slips on to synchronize both. Clutch also used to engage and disengages engine from the transmission while gear shifting takes place. Modelling Approach Procedure of work Power train jerking in hybrid vehicles is majorly due to engine electric motor torque changes during tip in and tips out operations. For investigating the problem of jerking for a hybrid vehicle, certain steps have been laid out for modeling the power train in five different steps which are in below figure 9 to observe and analyze each case individually with root cause: Figure : Modelling Procedure Basic Driveline Equations Engine: The engine output torque is expressed by the driving torque (Te) generated from combustion , friction torque (Tfric,e) and the external load from clutch (Tc) .By Newtons second law of motion, we can achieve the following model: Where Je is the mass of inertia of the engine, is the crank angular acceleration. Clutch: Generally a friction type clutch is installed in vehicles with manual transmission connecting to the engine flywheel and input shaft of the transmission. During clutch engagement if we assume no internal friction, Tc = Tt can be obtained. Then the torque transmitted is function of angular difference (ÃŽÂ ±cs ÃŽÂ ±c) and angular velocity difference ( ) resulting in: Figure : vehicle driveline with corresponding angle and torque labels. Transmission: A transmission consists of a gear set each with a different operating ratio it leading to relation between input and output torque Where Tp is the transmission output and Tfric is the internal friction torque of the transmission. Propeller shaft: The shaft which connects the transmissions output to the final drive unit in which no friction is assumed which gives us Tp = Tf , resulting in model for torque input to final drive Final Drive: final drive can be considered as a final ratio if as for the transmission leading to input and output torque relation Drive Shafts: The shafts which connect wheels to the final drive are called drive shafts. It can be assumed that both the wheels are rotating at same speed ( ). Ignoring the vehicle dynamics, the wheel speed shall be equal to speed of vehicle bodys centre of gravity. Therefore, drive shafts can be modelled as one shaft. Wheels: The forces acting on a vehicle with mass (m) and velocity (v) the longitudinal forces (FL)acting on the vehicle gives Rolling resistance (Rr) = f*m*g and Aerodynamic drag (Ra) =1/2*Af*Cd*à Ã‚ *V2. Where, m=mass of the vehicle, g=gravity constant, f=0.015(co-efficient of rolling resistance), Rr=rolling resistance, Ra=aerodynamic drag, Af=cross sectional area, Cd=coefficient of drag, density (à Ã‚ ), V=velocity. The drive line model can be expressed as a system consisting of rotating lumped inertias, compliances, damping losses, input torque and loads acting due to environmental resistive forces. A simple 2 degree of freedom model (fig 10) is sufficient to show the first torsional mode of vibrations which lead to jerking of vehicle. Figure : Free body diagram of a conventional driveline Where, Teng = engine torque, road load = Tload , e = engine speed, v = vehicle speed, Je = mass moment of inertia, be = viscous friction, r = final drive ratio, Ks CS = drive shafts flexibility, Cw = damper, vehicle inertia = Jv. Hybrid Power train Model As discussed earlier in report, the hybrid power train consists of additional components compared to conventional type which include electric motor, batteries, power electronics which form together the electric drive unit of the vehicle. Engine: Engine in hybrid power train plays a very important role in terms of fuel savings and vehicle assist. An engine model to be used for hybrid power train must be considered for following issues: The engine model must produce desired torque output irrespective of operating conditions. The engines dynamic behaviour leading to torque fluctuations generates drive line vibrations which in turn affects the driver comfort. As engine is not quick enough to respond to control actions implemented externally, the response delay can have significant affect on the vehicles performance. Engine can be modeled in many different ways depending upon the level of complexity required and the availability of parameters which can later be used for validating the inputs. The basic equation of engine model has been already discussed earlier which can be applied for the hybrid power train model also. Electric Motor/ Controller: The electric traction motor and controller consume the power from the onboard energy storage device like battery to provide the power source so as to generate the required torque for vehicle propulsion. The electric motor can also be used as starter/alternator or as a generator to recover energy during braking which can be used to charge batteries. The traction motor model can be described by following equations: Where idr , iqr are d,q axis rotor current respectively; ids ,iqs are d, q axis primary current respectively; Lm, is mutual inductance; Lr , LJ are resolved rotor, stator inductance respectively; P are poles; Rr, Rs are resolved rotor, stator resistance respectively, ohms; Vds Vqs are d, q axis primary voltage respectively, V; ÃŽÂ »dr and ÃŽÂ »qr are d, q axis rotor equivalent flux respectively, V-sec; ÃŽÂ »ds and ÃŽÂ »qs are d,q axis stator equivalent flux respectively, V-sec; à Ã¢â‚¬ °e is synchronous frequency, rps ; à Ã¢â‚¬ °r is rotor frequency, rps; , is rotor acceleration, rps2; Ts is electric motor torque, Nm. The limiting torque of the motor can be expressed by: Where à Ã¢â‚¬ °b, is motor base speed, rpm; à Ã¢â‚¬ °m is mechanical motor speed, rpm; Prated is the rater motor power, hp; Trated is the rated motor torque, Nm; Tm is mechanical motor torque, Nm. In addition to this, equations of motion for DC electric machine are: Where is the torque output of the machine proportional to the armature current, e is the back emf of the machine is proportional to the velocity of the rotor Drive Shaft: The drive shaft plays very important role in the drive train for transmitting the torque and rotation. They are subjected high torsion and shear stresses and therefore must have must have high stiffness. Below shown in the drive modelled using lumped inertias and their corresponding basic equations TDS =KDS (ÃŽÂ ¸T ÃŽÂ ¸W) + CDS (T W) Wheels: The forces acting on a vehicle with mass (m) and velocity (v) the longitudinal forces (Fe)acting on the vehicle gives Stationary model of the vehicle assuming all forces act through the centre of gravity and only in longitudinal direction. Gears: Assuming no losses in transmission the basic equation for gearing is But in reality there are viscous losses, sealing bearings drag contact friction. Losses vary with gear change but can be modelled as a loss torque tl acting on the transmission input shaft there can be shown as: Capacitor: It is device which stores energy an can be modelled by current equation Battery: Batteries are characterized by energy density, C-rating, cycle life, thermal run away and variations in temperature. Table below shows the comparison among different types of batteries with their technical specifications available in the market for HEV applications Property Lead Acid NiMH Lithium Cell Voltage Volts 2 1.2 3.6 Energy Density WH/Kg 30-40 50-80 100-200 Power Density W/Kg 100-200 100-500 500-8000 Maximum Discharge Rate 6 -10C 15C 100C Useful Capacity DOD% 50 50-80 80 Charge Efficiency % 60-80 70-90 ~100 Self Discharge %/Month 3-4 30 2-10 Temperature Range  °C -40 +60 -30 +60 -40 +60 Cycle Life Cycles 600-900 >1000 >2000 Micro-cycle Tolerant Deteriorates Yes Yes Robust (Over/Under Voltage) Yes Yes Needs BMS Cost per kWH  £100  £170  £150 Target A basic battery model might include an open circuit voltage and internal resistance Rc and Rd SOC Calculation: SOCic = initial SOC of the battery (assume 1; fully charged) Ibat = battery current that can be both positive and negative Qbat = battery capacity (Ah), needs converting to A.s for the simulation Simulation Tool Simulation X Simulation X is a multi domain program for modeling and simulation created by ITI GmbH. Some of its main features and capabilities are: Enables high level modelling platform for complex systems. Integrated with CAE design tool Over 30 standard industry specific libraries including automotive. Development of user specific libraries based on standard ones. Object oriented modelling language for simple and efficient modelling. Implementation of user based C code through external sources. Provides interface between various software available in market such as MATLAB/Simulink etc. Analysis tools available in Simulation X are: Transient Simulation: Capable of computing linear and non-linear models in the time domain. Steady State Simulation: Analyzing the models in periodic steady state condition dependent on a specific reference value. Linear System Analysis (Natural frequencies and mode shapes) : Efficiently generates damped and un damped natural frequencies of the complete system , time constants , eigen vectors, oscillations of state variables related to particular eigen frequencies. Linear System Analysis (Input Output Analysis): Enables linearization in the current operating point , analysis, export of state space matrices Modelling in Simulation X The vehicle type selected for the analysis of jerking and its effects is a sport utility vehicle (SUV) powered by a diesel engine shown earlier in figure 6 consisting a conventional diesel engine with crankshaft integrated starter generator (CISG), a DMF, a transmission gear box, a clutch between the transmission and the DMF, differential as a part of conventional power train and high voltage battery pack with power electronics on board as electric drive unit for the vehicle. Creating simulation models for hybrid power train requires various components of power train such as mechanics, hydraulics, electronics and pneumatics including the control aspects involved.

How Alcohol May Affect Human Behaviour :: essays research papers fc

How Alcohol May Affect Human Behaviour 4. A young man started behaving in an aggressive and abusive manner after he had a number of alcoholic drinks at a party. The next day he was behaving quite normally and was quite concerned when shown a video of his behaviour the previous night. Explain how alcohol may affect human behaviour. Some Facts(1) Australian industry loses more than one billion dollars a year because of sickness caused by alcohol. Alcohol plays a part in more than 50% of serious crimes in Australia. In violent crimes it plays an even bigger part: more than 75% of them are linked to alcohol. About half of the people killed in road accidents are killed because somebody has drunk to much. Effects of alcohol on human behaviour From the above facts it is clear that alcohol has a major impact on the lives of Australians. This is particularly more so because it is not illegal and because it is so widely used. The effects of alcohol on a individual's body vary according to: (2) with the amount consumed. the way the alcohol is taken. the individual's body (size weight, health). the individual's experience. the individual's mood. the circumstance in which alcohol is consumed (with food, in a social gathering, with other drugs etc.) The immediate effects of alcohol on an individual varies but can produce a wide range of effects including: (2) Loss of inhibitions. Flushing and dizziness. General impairment of brain and nervous system functions. General loss of co-ordination. Impairment of motor (movement) skills. Staggering. Slow reactions. Blurred vision and slurred speech. Aggression. General impairment of senses (e.g. touch, sight, speech, etc.) Vomiting. Unconsciousness. Children and young people are usually more affected by alcohol than adults. This is because of their lower body weight and lack of tolerance. The disturbing aspect is that one is not generally aware of these changes. Instead, the individual think's he/she is behaving more efficiently than normal. In fact, performance is much poorer. In relation to Topic (4) the change in behaviour in the young man at the party following a number of alcoholic drinks can now be explained. As shown above young people are generally more affected by alcohol than adults. The loss of inhibitions and aggressive behaviour can by typical changes after alcohol consumption. It is not surprising that when shown a video of his behaviour the previous night that he was quite concerned about his aggressive behaviour. Again as mentioned previously one of the effects of alcohol is that one is unaware of the changes taking place. As the young man was behaving normally the following day he did not have a hangover. A hangover is a body's reaction to being poisoned by alcohol and