Wednesday, December 25, 2019
Historical Trends Of Asia, Latin America, And The Middle East
Jonathan Leighton Dr. Mayer Hist 104 25 July 2014 Analyze World History From 1920-1990 Focusing On Asia, Africa, Latin America, And The Middle East There has been some noticeable historical changes that have taken place in different regions across the globe. This paper will thus concentrate on the analysis of historical trends of Asia, Latin America and Africa in the last century. Historical change has been facilitated by the changes in relationship and interactions that has allowed creativity to an extend where there has been some heightened level of change through the years as seen by the noticeable changes in the different region as shall be analyzed in this paper. This changes range from technological innovations, cultural origination that have managed to be used across the different parts of the globe (Sivers, Desnoyers and Stow 29). The patterns and effects of interactions amongst societies and regions around the Silk Road in Asia is a result of the growth of trade in Asian history. The effects of war, diplomacy and trade in history of Asia will be analyzed in detail in the paper too as significant historical events in the region.The Silk Road is a worldwide known trade route of early Asian civilization. ââ¬Å"Silk Roadâ⬠was initially coined to give a description of the most crucial and dynamic epitome of economic activities in the world. Silk Road was the greatest trade route that linked East Asia to Europe and to Africa. Silk Road played a critical role during itsShow MoreRelatedEssay on The Impact of the Remittances in Latin America1400 Words à |à 6 PagesIntroduction In Latin America migration and remittances have become structural features in the economy, the society, and in the political environment; due to the underdevelopment and inequality of the region. Because they relative importance, trends in migration and the impact of remittances in population of Latin America are the main topics that we will analyze in this research focusing on reduction of poverty and inequality. This research will aim to answer the next: Do remittances financeRead MoreSwot Analysis Of Pepsi1138 Words à |à 5 Pagesuniversal; this allows them to transition into new markets smoothly with ease and great efficiency. As of today PepsiCo is in China, Mexico, India, Russia, Canada, Europe Sub-Saharan Africa, as well as in their ââ¬Å"AMENAâ⬠region which consist of Asia, The Middle East and North Africa. Each of the different regions cater to the demand of the culture of that Country. As a factor of globalization any company wishing to expand into other Countries must comply with the religious values and restrictions, in IndiaRead MoreAdvantages And Disadvantages Of Pepsico1156 Words à |à 5 Pagesuniversal; this allows them to transition into new markets smoothly with ease and great efficiency. As of today PepsiCo is in China, Mexico, India, Russia, Canada, Europe Sub-Saharan Africa, as well as in their ââ¬Å"AMENAâ⬠region which consist of Asia, The Middle East and North Africa. Each of the different regions cater to the demand of the culture of that Country. As a factor of globalization any company wishing to expand into other Countries must comply with the religious values and restrictions, in IndiaRead MoreAggreko PLC Financial Statement Analysis2742 Words à |à 11 PagesLocal Business: II) Power Projects : I) Source : Aggreko company official website [online ] Page 3 Research and Analysis Project - American University of Sharjah Local businesses: The business in North and Latin America , Europe , Middle East , Africa , Asia and Australia operates 202 service centers and offices . The service centers within a 200 mile radius who are usually taking care of customers , and they offer a potential client s business . The geography of a particular marketRead MoreBoeing Management : The Hierarchy Of Teams1714 Words à |à 7 Pages Boeing has instituted a hierarchy of teams, in which instead of the corporate traditional organizational pyramid with layers of management, its structure encompasses four layers of teams. Having such a team system instituted eliminates the extra middle management level, while empowering employees at lower levels with more responsibility. Some of Boeing high-rank officials have explained that the company sees the assessment of competitiveness as the ability of the employees to use their skills andRead MoreBusiness Plan For Starbucks Business1477 Words à |à 6 Pagesaccounts. In this 10-K, Starbucks Corpo ration (together with its subsidiaries) is referred to as Starbucks, the Company, we, us or our. Starbucks has four reportable operating system which includes: â⬠¢ Americas: US, Canada, and Latin America â⬠¢ Europe, Middle East, and Africa â⬠¢ China/Asia Pacific â⬠¢ Channel Development. Also there are several non-reportable systems which includes Teavana, Seattle`s Best Coffee, Evolution Fresh, and Digital ventures business, which all together called as AllRead MoreImmigration Policy And Public Issues2070 Words à |à 9 PagesAbstract This paper explores the United States, Immigration Policy from an historical, fair and factual perspective. The Immigration Act of 1990 States limited ââ¬Å"unskilled workers to 10,000 a year. Skilled labor requirements and immediate family reunification were major goals. The Act continued to promote the nuclear family model, foreign-born in the US was 7%â⬠. This paper will also explore the demographics and diversity, of immigrants, throughout the U.S. This paper includes an article form theRead More Immigration in New York Essay3652 Words à |à 15 Pagesand their impact on the economy. I will also discuss the recent anti-immigration trend like Proposition 187. The middle colonies had a well-earned reputation for cultural diversity, and no colony or town was so racially and ethnically mixed as New Amsterdam, founded by the Dutch in 1625. The Netherlands permitted so many non-Dutch to settle there, because few Danes desired to leave their country. Thus the Dutch East India Company recruited settlers from a number of European countries and transportedRead MoreYou Are an Investment Analyst Essay3176 Words à |à 13 Pagesstock market analysis will be presented to a client as part of a professional consultation process. A background of both Pepsi and Coca will be accompanied in order to have a full synopsis of each company. The stock trends will be examined for both investment options. The stock trends will be based from the intial public offering day to January 2, 2012. Current events surrounding both companies will be displayed in order to assist the analysis. Lastly, we will analyze the financial statements ofRead MoreStrategic Manage ment in a Global Context8532 Words à |à 35 Pagesthe system to sell discounted tickets to a group of 30 people more than 45 days in advance. As a result, this employee may lose the sale. 3 In addition, unpredictable catastrophes with a global impact such as 9-11 or the SARS epidemic in South-Asia have a severe and sudden impact on demand. Industry Structure: The airline industry is an imperfect oligopoly. A few carriers dominate long-haul passenger traffic whilst several companies compete in the mid- and low-distance segment. Therefore
Monday, December 16, 2019
Sports An Essential Component Of Education - 2418 Words
Sports in the twentieth first century has become an essential component of education. Recreational athletic activities have a great role in perfecting the human spirit. Through healthy competition sports influence the cultivation of will, perseverance, responsibility and the ability to overcome and eliminate many different challenges. Moreover sport is a great tool which gathers people together towards a common objective, regardless of their nationality, race, religion or beliefs ââ¬â both on the field and in the stands. Today the era of technology and media has changed professional sport into a business. For a player or coach - training is a profession. For the audience it is a consumer market. Therefore the athleteââ¬â¢s road is full of temptations, which deals with many ethical dilemmas. More often we hear about competitors forgetting about the rule ââ¬Å"fair playâ⬠while getting into scandals regarding doping, selling matches, or inappropriate behavior. The pedagog ical aspect of recreational sport is undeniable, however in the presence of professional sports with elements of fighting and rivalry it would be simply difficult to say that sport is a physical activity, aimed at education for the recognition of moral values. Ethics is a scientific discipline, which deals with recognition of morality. The ultimate attempt of ethics is to distinguish between what is good and bad, just and unjust, right and wrong. Although ethics and morality are two different concepts, today many peopleShow MoreRelatedImproving Sports At School Time1566 Words à |à 7 Pagesimportance of physical education. Even public schools do not allocate enough time for kids to practice sports as much as they do for class-based education. In fact, physical activity for children is not only about pleasure time. Rather, it helps grown-up children to extend their capacity to grasp concepts explained in their classes. Children who are active while doing physical activity are expe cted to be active at class time. Thus, encouraging sports at school time is essential for child developmentRead MoreThe Integrated Sport Injury Model Is The Best Model That1341 Words à |à 6 PagesThe integrated sport injury model is the best model that could explain Mattââ¬â¢s psychological response to his reaggravating his shoulder injury. In this paper I will give a complete analysis of Mattââ¬â¢s psychological response for set backs in his rehabilitation process. This will be done in three main points: First I will explain what specifically the integrated sport injury model is. Then I will explain how Mattââ¬â¢s psychological response fits in this model. Lastly, I will conclude psychological rehabilitationRead MoreHey Teacher, leave recess alone! In her Huffington Post blog article titled Hereââ¬â¢s One Way to Wreck700 Words à |à 3 PagesHey Teacher, leave recess alone! In her Huffington Post blog article titled Hereââ¬â¢s One Way to Wreck a Childââ¬â¢s Education: Take Away Recess, Haley Krischer takes an emboldened stand against the practice of eliminating recess; which is often done as a punishment or to make more time for instructional learning. I stand in agreement with Krischer. I do not agree with schools taking away recess for any reason with the exception of dangerous weather or environmental circumstances. Yet, research indicatesRead MoreImplied Curriculum: Physical Education for All Students935 Words à |à 4 PagesPhysical education is a component of the American education system about which politicians, administrators, doctors, and others frequently debate. Some see it as an integral part of a studentââ¬â¢s education - a part that is often underemphasized due to time and budget constraints. Others see it as a non-essential, indicating that a studentââ¬â¢s academic day should not be interrupted with something as non-academi c as sports (Pill, 2012). In fact, currently only 2.1 percent of high schools provide the nationallyRead MoreThe Curriculum For Excellence And Education1165 Words à |à 5 PagesThe Curriculum for Excellence, introduced in 2014, aims to transform education in Scotland for ages 3-18. It intends to progress the standards of education and learning in the country by moving away from more traditional methods of teaching. This strategy, developed by the Scottish Government, recognises that learning is a lifelong process, beginning at birth, and therefore it is important to employ methods which prepare children from a young age for a life of work. In order to do so, the curriculumRead MoreStudent Athletes Are Deserving Of Economic Remuneration1505 Words à |à 7 PagesThe seven most popular sports (in order) in the United States are: NFL, MLB, NCAAF, auto racing, NBA, NHL, and NCAAM (Rovell, 2014). Five of the sports included are professional where the athletes are paid. However, two of them--NCAAF and NCAAM--are amateur sports headed by student-athletes who are not paid. When these college sports are on par with professional organizations that are worth billions of dollars, then the amateurism behind the NCAAF and NCAAM is questioned. In fact, the NCAA generatesRead MoreLink between Sports and Academics846 Words à |à 3 Pagesfactors, mainly including the lack of support for sports programs operating in educational intuitions by the UAE community, including the government and parents. This lack of support may arise out of some peopleââ¬â¢s perceptions that the time and energy spent on sports should be invested in other activities such as studying. However, these perceptions will be proven to be invalid.On the other hand, playing sports on a daily basis is proven to be a vital component of having a healthy lifestyle and a healthyRead MoreThe American Culture Is Rich811 Words à |à 4 PagesAmerican Culture The American Culture is rich, complex, and unique. Our culture, which is an important component of the nations identity, emerged from short, rapid European invasion of the Americas, sparsely settled by diverse native peoples. The Africanââ¬â¢s arrival added yet another layer of unique cultural complexity to the territories named the New World. These three cultures, European, Indian, and African were very different and yet a lot alike. Their ways of life were greatly diverse althoughRead MoreBenefits Of Youth Sports : A Positive Impact On All Those That Participate1286 Words à |à 6 PagesIV November 24, 2015 Benefits of Youth Sports Youth sports have a positive impact on all those that participate. Over seventy-five percent of United States families with school-aged children have at least one child who engage in organized sports. (Bailey, 1) Parents sign their children up for organized sports for numerous reasons, like, keeping their children fit and active, building a sense of teamwork, or others may be fulfilling their passion for sports through their children. Whatever the reasonRead Morebenefits of youth sports1111 Words à |à 5 Pagespositive effects of youth sports Athletics can have a very major impact on a childââ¬â¢s life. Students who participate in youth athletics learn many life skills that can positively affect their lives. Athletics benefit children in physical, psychological, and social development. Studies show that youth who participate in organized sports during middle and high school do better academically and are offered greater job prospects than children who do not partake in sports activities (Marilyn Price-Mitchell
Sunday, December 8, 2019
History Of Chemistry Essay Example For Students
History Of Chemistry Essay History of ChemistryIntroduction:Humans have always been very curios creatures. The have always wondered about what they are and why they are here. Our limited knowledge of the environment has always urged for new things to be discovered. The desire to understand the world better has made people search for rational answers, for principles and laws. For centuries people have tried to unlock the mysterious world that surrounds them. History:Because myths did not explain things well enough the Greeks began to ask questions about the world around them. They did this so thoroughly and so brilliantly that the era between 600 and 400 B.C. is called the golden age of philosophy. The Greek philosophy was an attempt to find the truth about unexplained phenomena, mostly by trying to think things through, not by running experiments in a laboratory. The philosophers wanted to discover the basic nature of things and some of them believed that they could find one thing that everything else was made of. A philosopher named Thales said that this substance was water, but another named Anaximenes thought it was air. A third called Empedocles said that the world was composed of four elements: earth, air fire and water. Aristotle became the most influential of the Greek philosophers, and his ideas dominated science for nearly two millennia after his death in 323 BC. He believed that four qualities were found in nature: heat, cold, moisture, and dryness. The four elements were each composed of pairs of these qualities; for example, fire was hot and dry, water was cold and moist, air was hot and moist, and earth was cold and dry. These elements with their qualities combined in various proportions to form the components of the earthly planet. Because it was possible for the amounts of each quality in an element to be changed, the elements could be changed into one another; thus, it was thought possible also to change the material substances that were built up from the elements-lead into gold, for example. During this period the Greeks had laid the basic foundation for one of our main ideas about the universe. Leucippus and Democritus established the idea of the atom in an effort to figure out the ultimate composition of things. At that time there was no way to test whether atoms really existed, and more than 2000 years passed before scientists proved the theory. Meanwhile, the Egyptians were already practicing the art of chemistry. They were mining and purifying the metals gold, silver and copper. They were making ?embalming? fluids and dyes. They called this art khemia, and it flourished until the seventh century A.D., when it was taken over by the Arabs. The Arabs changed the word khemia to alkhemia. Today our version of the word, alchemy is used to describe everything that happened in chemistry between A.D. 300 and A.D. 1600. The main goal of the alchemists was the conversion of base metals into gold. They wanted to turn one element into another. The ancient Arabic emperors employed many alchemists to try and change mercury, copper and other less worthy metals into gold. At almost the same time, and probably independently, a similar alchemy arose in China. Here, also, the aim was to make gold, although not because of the monetary value of the metal. The Chinese believed that gold was a medicine that could grant long life or even immortality on anyone who consumed it. As did the Egyptians, the Chinese gained practical chemical knowledge from incorrect theories. .u9956921196de4564e11fb2c6ae709f6f , .u9956921196de4564e11fb2c6ae709f6f .postImageUrl , .u9956921196de4564e11fb2c6ae709f6f .centered-text-area { min-height: 80px; position: relative; } .u9956921196de4564e11fb2c6ae709f6f , .u9956921196de4564e11fb2c6ae709f6f:hover , .u9956921196de4564e11fb2c6ae709f6f:visited , .u9956921196de4564e11fb2c6ae709f6f:active { border:0!important; } .u9956921196de4564e11fb2c6ae709f6f .clearfix:after { content: ""; display: table; clear: both; } .u9956921196de4564e11fb2c6ae709f6f { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .u9956921196de4564e11fb2c6ae709f6f:active , .u9956921196de4564e11fb2c6ae709f6f:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u9956921196de4564e11fb2c6ae709f6f .centered-text-area { width: 100%; position: relative ; } .u9956921196de4564e11fb2c6ae709f6f .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u9956921196de4564e11fb2c6ae709f6f .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u9956921196de4564e11fb2c6ae709f6f .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .u9956921196de4564e11fb2c6ae709f6f:hover .ctaButton { background-color: #34495E!important; } .u9956921196de4564e11fb2c6ae709f6f .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u9956921196de4564e11fb2c6ae709f6f .u9956921196de4564e11fb2c6ae709f6f-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u9956921196de4564e11fb2c6ae709f6f:after { content: ""; display: block; clear: both; } READ: The Tragic Consequences of the Rebellion on Animal Farm Sample EssayAlchemists also tried to find the ?philosophers stone? and the ?elixir of life?. They wanted, in other words, to discover a cure for all diseases, and a method of indefinitely prolonging life. In the early 13th century alchemists like Roger Bacon, Albertus Magnus and Raymond Lully began to realize that the search for a philosophers stone was useless. They believed that alchemists would better serve the world by discovering new products and new methods to improve everyday life. This started a trend in which alchemists gave up on finding the philosophers stone. An important leader in this movement was a Swiss by the name of Theophrastus Bombastus. Bombastus felt that the object of alchemy should be the cure of the sick. He
Sunday, December 1, 2019
Leadership and Justin free essay sample
1. What might explain Justinââ¬â¢s Failure to perform well in his new leadership role as the head of the Asia-Pacific division? I feel that there could have been a few things that led to Justinââ¬â¢s failure in his new leadership position. While although he was extremely successful during his domestic VP position, many leaders fail to grasp the key traits and skills needed for the global scale. I think more emersion into the Hong Kong culture could have possibility helped Justin adapt and relate better with the local employees of the company. With being culturally aware Justin also needed to be adaptable in his new position. Being resourceful and not just implementing new rules and policies isnââ¬â¢t exercising an adaptable approach to the new job. The most import aspect I think Justin missed the boat on was looking to the future of the business but in the aspect of his new environment. We will write a custom essay sample on Leadership and Justin or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Had he made this his number one priority, I feel the other traits and skills needed for this new position would have followed. 2. What might Compcorp have done to enhance prospects for Justinââ¬â¢s successful performance? What might Justin himself have done to enhance the likelihood of success in this new assignment and to help avoid derailing an otherwise highly promising career in Compcorp? Compcorp could have enhanced Justinââ¬â¢s performance by following one of two models to shape effective global leaders. The first is the GLED Model (Global Leadership Expertise Development) which focuses on four categories: individual characteristics, cultural exposure, global education, and project novelty (Ball, p. 286). The second is The ââ¬Å"Right Stuffâ⬠Model which identifies global leaders in what they have learned and what they are able to do as leaders (Ball, p. 286). Had Compcorp alerted extra attention to Justin Marshall under either one of these models instead of just going of past performance his outcome would have had a better result. Compcorp isnââ¬â¢t the only one at fault; Justin is equally responsible for his performance. Justin might have done some more research on the market and culture in Hong Kong to get a better understanding of longevity because his plan of action and procedures didnââ¬â¢t even make it to three successful quarters.
Tuesday, November 26, 2019
Definition and History of the Sapir-Whorf Hypothesis
Definition and History of the Sapir-Whorf Hypothesis The Sapir-Whorf hypothesis is theà linguistic theory that the semantic structure of a language shapes or limits the ways in which a speaker forms conceptions of the world. It came about in 1929. The theory is named after the American anthropological linguist Edward Sapir (1884ââ¬â1939) and his student Benjamin Whorf (1897ââ¬â1941). It is also known as theà theory of linguistic relativity, linguistic relativism, linguistic determinism, Whorfian hypothesis, and Whorfianism. History of the Theory The idea that a persons native language determines how he or she thinks was popular among behaviorists of the 1930s and on until cognitive psychology theories came about, beginning in the 1950s and increasing in influence in the 1960s. (Behaviorism taught that behavior is a result of external conditioning and doesnt take feelings, emotions, and thoughts into account as affecting behavior. Cognitive psychology studies mental processes such as creative thinking, problem-solving, and attention.) Author Lera Boroditsky gave some background on ideas about the connections between languages and thought: The question of whether languages shape the way we think goes back centuries; Charlemagne proclaimed that to have a second language is to have a second soul. But the idea went out of favor with scientists whenà Noam Chomskys theories of language gained popularity in the 1960s and 70s. Dr. Chomsky proposed that there is aà universal grammarà for all human languages- essentially, that languages dont really differ from one another in significant ways....à (Lost in Translation. The Wall Street Journal, July 30, 2010) The Sapir-Whorf hypothesis was taught in courses through the early 1970s and had become widely accepted as truth, but then it fell out of favor. By the 1990s, the Sapir-Whorf hypothesis was left for dead, author Steven Pinker wrote. The cognitive revolution in psychology, which made the study of pure thought possible, and a number of studies showing meager effects of language on concepts, appeared to kill the concept in the 1990s... But recently it has been resurrected, and neo-Whorfianism is now an active research topic inà psycholinguistics. (The Stuff of Thought. Viking, 2007) Neo-Whorfianism is essentially a weaker version of the Sapir-Whorf hypothesis and says that languageà influencesà a speakers view of the world but does not inescapably determine it. The Theorys Flaws One big problem with the original Sapir-Whorf hypothesis stems from the idea that if a persons language has no word for a particular concept, then that person would not be able to understand that concept, which is untrue.à Language doesnt necessarily control humans ability to reason or have an emotional response to something or some idea. For example, take the German wordà sturmfrei, which essentially is the feeling when you have the whole house to yourself because your parents or roommates are away. Just because English doesnt have a single word for the idea doesnt mean that Americans cant understand the concept. Theres also the chicken and egg problem with the theory. Languages, of course, are human creations, tools we invent and hone to suit our needs,à Boroditsky continued. Simply showing that speakers of different languages think differently doesnt tell us whether its language that shapes thought or the other way around.
Friday, November 22, 2019
Grumman F4F Wildcat - World War II
Grumman F4F Wildcat - World War II F4F Wildcat - Specifications (F4F-4): General Length: 28 ft. 9 in. Wingspan: 38 ft. Height: 9 ft. 2.5 in. Wing Area: 260 sq. ft. Empty Weight: 5,760 lbs. Loaded Weight: 7,950 lbs. Crew: 1 Performance Power Plant: 1 Ãâ" Pratt Whitney R-1830-86 double-row radial engine, 1,200 hp Range: 770 miles Max Speed: 320 mph Ceiling: 39,500 ft. Armament Guns: 6 x 0.50 in. M2 Browning machine guns Bombs: 2 Ãâ" 100 lb bombs and/or 2 Ãâ" 58 gallon drop tanks F4F Wildcat - Design Development: In 1935, the US Navy issued a call for a new fighter to replace its fleet of Grumman F3F biplanes. Responding, Grumman initially developed another biplane, the XF4F-1 which was an enhancement of the F3F line. Comparing the XF4F-1 with the Brewster XF2A-1, the Navy elected to move forward with the latter, but asked Grumman to rework their design. Returning to the drawing board, Grummans engineers completely redesigned the aircraft (XF4F-2), transforming it into a monoplane featuring large wings for greater lift and a higher speed than the Brewster. Despite these changes, the Navy decided to move forward with the Brewster after a fly-off at Anacostia in 1938. Working on their own, Grumman continued to modify the design. Adding the more powerful Pratt Whitney R-1830-76 Twin Wasp engine, expanding the wing size, and modifying the tailplane, the new XF4F-3 proved capable of 335 mph. As the XF4F-3 greatly surpassed the Brewster in terms of performance, the Navy granted a contract to Grumman to move the new fighter into production with 78 aircraft ordered in August 1939. F4F Wildcat - Operational History: Entering service with VF-7 and VF-41 in December 1940, the F4F-3 was equipped with four .50 cal. machine guns mounted in its wings. While production continued for the US Navy, Grumman offered a Wright R-1820 Cyclone 9-powered variant of the fighter for export. Ordered by the French, these aircraft were not complete by the fall of France in mid-1940. As a result, the order was taken over by the British who used the aircraft in the Fleet Air Arm under the name Martlet. Thus it was a Martlet that scored the types first combat kill when one downed a German Junkers Ju 88 bomber over Scapa Flow on December 25, 1940. Learning from British experiences with the F4F-3, Grumman began introducing a series of changes to the aircraft including folding wings, six machine guns, improved armor, and self-sealing fuel tanks. While these improvements slightly hampered the new F4F-4s performance, they improved pilot survivability and increased the number that could be carried aboard American aircraft carriers. Deliveries of the Dash Four began in November 1941. A month earlier, the fighter officially received the name Wildcat. At the time of the Japanese attack on Pearl Harbor, the US Navy and Marine Corps possessed 131 Wildcats in eleven squadrons. The aircraft quickly came to prominence during the Battle of Wake Island (December 8-23, 1941), when four USMC Wildcats played a key role in the heroic defense of the island. During the next year, the fighter provided defensive cover for American planes and ships during the strategic victory at the Battle of the Coral Sea and the decisive triumph at the Battle of Midway. In addition to carrier use, the Wildcat was an important contributor to Allied success in the Guadalcanal Campaign. Though not as nimble as its main Japanese opponent, the Mitsubishi A6M Zero, the Wildcat quickly earned a reputation for its ruggedness and ability to withstand shocking amounts of damage while still remaining airborne. Learning quickly, American pilots developed tactics to deal with the Zero which utilized the Wildcats high service ceiling, greater ability to power dive, and heavy armament. Group tactics were also devised, such as the Thach Weave which allowed Wildcat formations to counter a diving attack by Japanese aircraft. In mid-1942, Grumman ended Wildcat production in order to focus on its new fighter, the F6F Hellcat. As a result, manufacture of the Wildcat was passed to General Motors. Though the fighter was supplanted by the F6F and F4U Corsair on most American fast carriers by mid-1943, its small size made it ideal for use aboard escort carriers. This allowed the fighter to remain in both American and British service through the end of the war. Production ended in fall 1945, with a total of 7,885 aircraft built. While the F4F Wildcat often receives less notoriety than its later cousins and possessed a less-favorable kill-ratio, it is important to note that the aircraft bore the brunt of the fighting during the critical early campaigns in the Pacific when Japanese air power was at its peak. Among the notable American pilots who flew the Wildcat were Jimmy Thach, Joseph Foss, E. Scott McCuskey, and Edward Butch OHare. Selected Sources Military Factory: F4F WildcatChuckhawks: F4F Wildcat
Thursday, November 21, 2019
Control System Project for A Car Wash System Assignment
Control System Project for A Car Wash System - Assignment Example Self-generating sensors convert energy for a particular domain to another. The output signal, in this case, turns out to be zero since the signal itself is the only energy applied. For this reason, the sensor is referred to the as self-generating transducer. Self-generating transducers have no output and hence there is no offset as depicted in figure 1 below (Langereis, 1999). This aspect the reason for choosing the thermocouple sensors. Only the slope needs to be known. Ã This group of sensors refers to transducers consisting of devices into which energy could be applied by a specific source. The energy is then modulated using a chemical or physical parameter. Typical examples include the Pt-100 thermo-resistive temperature sensors and pH sensing ISFET. In the case of these sensors, it is possible to eliminate the offset through measuring of the output based on another element that is hardly sensitive to this measured parameter (Kissinger, Hart, & Adams, 1973). In this regard, a zero output would imply that all the conditions in the measuring device equal the conditions at the other device (Langereis, 1999). The choice of these sensors is thus based on the possibility to eliminate undesired signals such as unstable references. The Wheatstone bridge shown below is the most applicable differential set-up in case. Ã The sensor-actuator system is one of the commonest causes of integrated systems and may involve a smart use of data obtained using several sensors. While a typical integration may involve the joining of various structures, it can also involve the integration in data interpretation.
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