Boeing Case Study Essays - Boeing, Airbus, LATAM Chile,

Boeing Case Study Keeping Boeing Flying Higher and Higher Case Study Introduction Boeing has been building commercial airliners since 1927 with the first Boeing commercial jet airliner, the 7O7, introduced in l955. As discussed in the article on page 172 of the text. This success is even more remarkable when one realizes that the Boeing Design/ Build process had not changed very much during the past three decades. The system was antiquated, cumbersome, and inefficient creating production delays, increased costs, and spawning a huge bureaucracy simply to handle the paperwork. Boeing must clearly be motivated to bring this World War II era process into the 21st Century. Airbus Industries' increasingly larger share of the commercial airliner market was a major force instigating these changes. Airbus had the advantages of government subsidies to help defray the costs of implementing best design practices, as well as latecomer advantages. It learned from Boeing's, as well as Lockheed's and McDonnell Douglas', mistakes and it did not have 40 years of bureaucratic momentum to overcome. Other motivating factors include the need for Boeing to increase the income from the commercial aircraft division to offset the loss of revenue due to cutbacks in government defense and aerospace contracts. In this paper I will attempt to highlight those topics I think should be covered, suggestions, and background for those reasons. In this I will hope to show why the Boeing Company was in need of the much-needed overhaul of the design/build process at Boeing, the changes themselves as well as the methodology used in accomplishing those changes. The Commercial Aircraft Industry The last decade has seen the commercial aircraft industry dominated by two manufacturers: the Boeing Commercial Aircraft Company and Airbus Industries, with McDonnell Douglas, a distant third. Airbus Industries is a relative newcomer, but it has very quickly provided much competition to Boeing, surpassing McDonnell Douglas and Lockheed. Airbus Industries is a consortium backed by the British, French, German and Spanish governments. The great, and many say unfair, advantage that Airbus has over the competition is government subsidies allowing Airbus to operate in the red. Thus, Airbus can afford to develop new technologies without having to worry about passing on the costs to the customers and can price their aircraft very competitively to lure away airlines from Boeing. Cost cutting The effects of the changing airline industry resulting from deregulation in 1978 are still being felt in the commercial aircraft industry. The competition among airlines for passengers has resulted in a greater emphasis on cost cutting leading to mergers and bankruptcies. In addition, airlines modified their routing systems since they were not limited to certain routes, as was the case before deregulation, changing their buying patterns for aircraft accordingly. Airlines were now less concerned with having a technologically superior airplane and more concerned about the cost and efficiency of that airplane. Why Change.? The first question that comes to mind is why would the undisputed leader in the commercial airliner industry make such a risky, change?. In other words, doesn't the old motto If it ain't broke, Don't fix it apply in this case? Well according to many observers both inside and outside of Boeing, the system was 'broke'. To give an example of the inefficiency of the process that coordinates engineering and manufacturing, it used to take 800 different computer systems to manage it. This process has been around since Boeing was building the B-17 Bomber in World War II. The process of tracking parts in an airplane was called effectinitly and was done manually! A drafter required two years of training to fully understand the system, and still one-third of the paper work contained errors. This effectivity just doesn't make sense, and this process adds absolutely no value to their product and results in tremendous costs. Regardless of all the evidence pointing to flaws in the system, changing a successful company is not easy, especially if we consider the cost and the additional time involved. For the 777, the additional time is estimated to be six months over the normal 48 months to develop a new airplane. Getting a tremendously large bureaucratic system to move forward is a daunting task, especially while continuing to produce airplanes. The Changes; The changes to the Boeing Commercial Aircraft Company must encompass all fields.

The Ancient Sources for the History of Ancient India

The Ancient Sources for the History of Ancient India It used to be  said that the history of  India and the Indian Subcontinent  didnt begin until the Muslims invaded in the 12th century A.D. While thorough history-writing may stem from such a late date, there are earlier historical writers with 1st-hand knowledge. Unfortunately, they dont extend back in time as far as we might like or as far as in other ancient cultures. It is common knowledge that there is no corresponding equivalent on the Indian side. Ancient India has no historiography in the European sense of the word-in this respect the only historiographic civilizations of the world are the Graeco-Roman and Chinese ones...- Walter Schmitthenner, The Journal of Roman Studies When writing about a group of people who died thousands of years ago, as in ancient history, there are always gaps and guesses. History tends to be written by the victors and about the powerful. When history is not even written, as was the case in early ancient India, there are still ways to extract information- mostly archaeological, but also obscure literary texts, inscriptions in forgotten languages, and stray foreign notices, but it doesnt lend itself to straightline political history, the history of heroes and empires [Narayanan]. Although thousands of seals and inscribed artifacts have been recovered, the Indus script remains undeciphered. Unlike Egypt or Mesopotamia, this remains a civilization inaccessible to historians.... In the Indus case, while the descendents of urban dwellers and technological practices did not entirely disappear, the cities their ancestors had inhabited did. Indus script and the information it recorded also were no longer remembered.- Thomas R. Trautmann and Carla M. Sinopoli When Darius and Alexander (327 B.C.) invaded India, they provided dates around which the history of India is constructed. India did not have its own western-style historian before these incursions so reasonably reliable chronology of India dates from Alexanders invasion in the late 4th century B.C. Shifting Geographic Limits of India India originally referred to the area of the Indus River valley, which was a province of the Persian Empire. Thats how Herodotus refers to it. Later, the term India included the area bounded on the north by the Himalayas and Karakoram mountain ranges, the penetrable Hindu Kush in the northwest, and on the northeast, the hills of Assam and Cachar. The Hindu Kush soon became the border between the Mauryan empire and that of the Seleucid successor of Alexander the Great. Seleucid-controlled Bactria sat immediately to the north of the Hindu Kush. Then Bactria separated from the Seleucids  and independently invaded India. The Indus River provided a natural, but controversial border between India and Persia. It is said that Alexander conquered India, but Edward James Rapson of The Cambridge History of India Volume I: Ancient India says its only true if you mean the original sense of India the country of the Indus Valley since Alexander didnt go beyond the Beas (Hyphasis). Nearchus, an Eyewitness Source on Indian History Alexanders admiral Nearchus wrote about the Macedonian fleets travel from the Indus River to the Persian Gulf. Arrian (c. A.D. 87 - after 145) later used Nearchus works in his own writings about India. This has preserved some of Nearchus now lost material. Arrian says Alexander founded a city where the Hydaspes battle was fought, which was named Nikaia, as the Greek word for victory. Arrian says he also founded the more famous city of Boukephala, to honor his horse, also by the Hydaspes. The location of these cities is not clear and there is no corroborative numismatic evidence. [Source: The Hellenistic Settlements in the East From Armenia and Mesopotamia to Bactria and India, by Getzel M. Cohen, University of California Press: 2013.) Arrians report says that Alexander was told by inhabitants of Gedrosia (Baluchistan) about others who had used that same travel route. The legendary Semiramis, they said, had fled through that route from India with only 20 members of her army and Cambyses son Cyrus returned with only 7 [Rapson]. Megasthenes, an Eyewitness Source on Indian History Megasthenes, who stayed in India from 317 to 312 B.C. and served as ambassador of Seleucus I at the court of Chandragupta Maurya (referred to in the Greek as Sandrokottos), is another Greek source about India. He is quoted in Arrian and Strabo, where the Indians denied having engaged in foreign warfare with any but Hercules, Dionysus and the Macedonians (Alexander). Of the westerners who might have invaded India, Megasthenes says Semiramis died before invading and the Persians acquired mercenary troops from India [Rapson]. Whether or not Cyrus invaded northern India depends on where the border is or was set; however, Darius seems to have gone as far as the Indus. Native Indian Sources on Indian History Soon after the Macedonians, the Indians themselves produced artifacts that help us with the history. Particularly important are the stone pillars of the Mauryan king Ahsoka (c. 272- 235 B.C.) which provide the first glimpse of an authentic historical Indian figure. Another Indian source on the Mauryan dynasty is the Arthashastra of Kautilya. Although the author is sometimes identified as Chandragupta Mauryas minister Chanakya, Sinopoli and Trautmann say the Arthashastra was probably written in the second century A.D. Sources The Hour-Glass of India C. H. Buck, The Geographical Journal, Vol. 45, No. 3 (Mar., 1915), pp. 233-237Historical Perspectives on Ancient India, M. G. S. Narayanan, Social Scientist, Vol. 4, No. 3 (Oct., 1975), pp. 3-11Alexander and India A. K. Narain ,  Greece Rome, Second Series, Vol. 12, No. 2, Alexander the Great (Oct., 1965), pp. 155-165The Cambridge History of India Volume I: Ancient India  By Edward James Rapson, The Macmillan CompanyIn the Beginning Was the Word: Excavating the Relations between History and Archaeology in South Asia Thomas R. Trautmann and Carla M. Sinopoli​,  Journal of the Economic and Social History of the Orient, Vol. 45, No. 4, Excavating the Relations between Archaeology and History in the Study of Pre-Modern Asia [Part 1] (2002), pp. 492-523Two Notes on Seleucid History: 1. Seleucus 500 Elephants, 2. Tarmita W. W. Tarn​,  The Journal of Hellenic Studies, Vol. 60 (1940), pp. 84-94

Capacitance (Timing Circuits) Essay Example | Topics and Well Written Essays - 500 words

Capacitance (Timing Circuits) - Essay Example For capacitance derived unit is useful for expressing the charge (unit of charge is Coulombs)that can be transferred to an object per unit of voltage ( unit of voltage is in Volts) and thus a unit which we got from this ratio is known as Farad. Each capacitor having two parallel plates and will have capacitance equal to  8.85 Ï F/m, times the area of one of the plates, divided by the distance between them. When sharing the charge applied to one capacitor with a second capacitor, charge is conserved, therefore Vf * (C1 + C2) = Vi * C1. When discharging a capacitor through a resistor, V(t) = V0 * e-t/RC. When charging a capacitor through a resistor, V(t) = Vf – Vf * e-t/RC (â€Å"Courseworkbank†). In timing circuits there are two possibilities either we are controlling the rate of response of the capacitor or controlling the rate of voltage across the capacitor. If a series combination of a resistor and capacitor are present such type of circuit is simplest timing circuit. The amount of time to charge the capacitor to 63% of the input voltage as well as it is equal to the resistance times the capacitance is known as time constant T=RC.Varying the values of resistance and capacitance ultimately results in time ranging from microseconds to weeks. The important characteristics of capacitor are: This timer circuit is similar to the 5 to 30 minute timer except that when switch S1 is closed, the on/off action of the circuit will continue indefinitely until S1 is opened again. A 7555 time and low leakage type capacitor for C1 must be used. The 6 way rotary switch S3 adds extra resistance in series to the timing chain with each rotation, minimum resistance point "a" maximum point "f". The 7555 is wired as an equal mark/space ratio oscillator, the timing resistor chain R1 to R6, being connected back to the output of the timer at pin 3.The output pulse duration is defined