Thursday, November 28, 2019

History of Air Transport and Airport

Table of Contents Introduction History of Air Transport Development of Airport Air transport and economic development Airport security Works Cited Introduction Transport economics mainly focus on the movement of goods and people over time and space. There are different modes of transport used to transport goods and people from one region to another. These include road transport, air transport, rail transport, sea and air transport.Advertising We will write a custom research paper sample on History of Air Transport and Airport specifically for you for only $16.05 $11/page Learn More All these modes have their advantages and disadvantages and the choice of one mode of transport depends on several factors such as speed, costs, convenience, and many other factors. In transport economics, the cost of transport is very important since it plays an important role in facilitation of trade. This topic analyses transport economics specifically on the area of ai r transport. History of Air Transport Among all the other modes of transport, air transport was among the last modes to be developed. Before the development of air transport, the other modes of transport such as road and sea transport, which were developed many years ago, were used. In the ancient times before the discovery of modern modes of transport, people used to walk by foot from place to another implying that, even for people to exchange goods and services, they had to walk by foot from one market place to another. This mode of exchange was very cumbersome for many reasons. First, it was time consuming; secondly, the quantity of goods to be transported was very little and this phenomenon made it difficult to trade and the transport was so inconvenient. However, as the time went by, different modes of transport were developed which reduced the cost of transport. For instance, roads were developed and trucks could be used to transport goods from one region to another. Rail and water transport were developed and goods could now be transported over long distances. Development of rail and water transport made it possible for traders to exchange their goods from country or continent to another and this facilitated more trade and reduced costs of transportation. However, the development of these three modes of transport (road, rail, and sea) transport did not solve the problem of transport completely. A mode of transport that was faster and more convenient was required. This need led to the development of air transport in the early twentieth century.Advertising Looking for research paper on business economics? Let's see if we can help you! Get your first paper with 15% OFF Learn More Through innovation of airplane, trade was taken to another new level where goods could now be exchanged at faster rate than before. Air transport made it possible to transport goods and people from one region to another within few minutes. Perishable goods, which co uld not be exchanged before due to their nature, could now be transported from one region to another. Movement of goods and people was enhanced in all parts of the globe. The cost of transport was also reduced in a large proportion by the development of the air transport. Since then, air transport has been developing with discovery of more advanced aircrafts, which has made transport of goods and people faster and more convenient. Development of Airport Discovery of aircrafts facilitated development of airports that act as the hubs of air transport. Airports have developed over the years as more advanced airplanes are developed. Airports have been developed in all the countries in the world. In developed countries, there are numerous airports in almost all the major towns to facilitate transportations of goods and services from one region to another. Global cities such as London, New York, Paris and many others that serve as the centre of international trade have developed large and modern airports over the last years to enhance transportation of people and goods in all the regions of the world. Airlines from different companies use these major airports as their centre to all the other routes in the world. Air transport and economic development The development of air transport over the years has transformed trade through increased movement of goods and passengers. Due to speed and convenience of the air transport, many businesses people carrying out international and domestic trade have opted for this mode of transport despite its high charges. According to Daley, air transport has made a positive contribution to the economy over the time (210). The graph below shows the relationship between economic growth and the volume of goods and passengers using air transport from 1950 to 2008. Source: The Geography of Transport SystemsAdvertising We will write a custom research paper sample on History of Air Transport and Airport specifically for you for only $16.05 $11/page Learn More Between 1950 and 2008, airfreight and air passengers’ traffic was growing faster than the world economic growth rate. This can be attributed to the capability of the air transport to reduce time and space which attracted more goods and people to this mode. Around 1960, there was congestion in the air transport traffic and air transport companies were looking for airplanes that could carry more passengers and goods. In 1970s, there was revolution in the air industry after development of large capacity airplanes, which could carry larger capacity and charge low prices. This increased global economic growth. As Xiaowen, Tae and Anming note, increased competition and efficiency has also increased demand of air transport (p.24). Thus, economic growth and air transport are closely related and development of air transport has increased global economic growth. Airport security Though the development of air transport has transformed worl d trade, it has come along with negatives effects that have seriously affected the lives of people. These negative effects include environmental pollution, air accidents, increased illegal trafficking of goods and people among other problems. Over the past years, the issue of insecurity has become a major global challenge due to increased cases of crimes in aircraft and airports. Due to increased volume of people using air transport, airports have become potential targets for crimes such as terrorism and other kinds of crimes. Airport provides a large crowd that is concentrated on a small area, which makes it highly susceptible to terrorism attacks. Large global airlines are also targeted due to their carrying capacity of their aircraft. The 9/11 terrorist attack at the World Trade Centre headquarters in New York in 2002 represents one of the recent terrorism attack on aircrafts. Due to increased cases of terrorism attacks and especially after the 9/11 attack, airport, and aircraft security has become a very sensitive issue in the whole world. Strict measures have been put in air transport to prevent such occurrences in future. Lord indicates that, risk assessment in the airport security is necessary in all the airports (1). According to United States Government Accountability Office (GAO), report security scrutiny should also be done even in foreign airports and aircraft to prevent cases of terrorism (111). Techniques and various methods have been adopted in airports in the world to ensure that aircrafts and airports are protected from any potential attack. New techniques have been developed to screen both people and goods in the airport in the search for bombs and other explosives.Advertising Looking for research paper on business economics? Let's see if we can help you! Get your first paper with 15% OFF Learn More Works Cited Daley, Ben. â€Å"Is air transport an effective tool for sustainable development?† Sustainable Development journal 17.4 (2009): 210-219. Lord, Stephen. â€Å"A National Strategy and Other Actions Would Strengthen TSA’s Efforts to Secure Commercial Airport Perimeters and Access Controls.† GAO Reports, 2009: 1-97. The geography of transport systems. Air Transportation Growth (Passengers and Freight) and Economic Growth, 2011. Web. https://transportgeography.org/ United States Government Accountability Office. â€Å"Aviation Security: Foreign Airport Assessments and Air Carrier Inspections Help Enhance Security, but Oversight of These Efforts Can Be Strengthened: GAO-07-729.† GAO Reports, 2007: 96-124. Xiaowen, Fu, Tae, Hoon, and Anming, Zhang. â€Å"Air Transport Liberalization and Its Impacts on Airline Competition and Air Passenger Traffic.† Transportation Journal 49.4 (2011):24-41. This research paper on History of Air Transport and Airport was written and submitted by user Mess1ah to help you with your own studies. You are free to use it for research and reference purposes in order to write your own paper; however, you must cite it accordingly. You can donate your paper here.

Wednesday, November 27, 2019

ECE Lab Report essays

ECE Lab Report essays In this experiment, we constructed a circuit that was connected to a 7-panel writing board. The 6 inputs from the circuit were hooked up to the corresponding pins on the XS40 FPGA board. Then 6 outputs from the corresponding pins on the XS40 FPGA board were then connected to a ribbon cable that was connected to a computer. When the circuit was complete, we wrote a program in C++ to interface the hardware with the PC using its parallel-I/O port. The program was then improved to implement a calculator interface and performed mathematical operations. There were 15 different combinations on writing panel, which corresponded to 10 different digits, 4 different operands, and an equal sign. Writing panel: it is consisted of 7 metallic panels. Each panel is soldered to a wire, which is connected to the D-latch. The writing panel is used for the user to input the combination of the corresponding number, operand, and equal sign. 7474 D-latch: four chips were used during this lab because we need 7 inputs (Preset). Each panel from the writing board is connected to the PRE on the D-latch to set the state, 1 being used and 0 being unused. Three of four D-latches CLRs were all connected to together in order to clear the writing panel when it is grounded; moreover, all CPs and Ds were grounded. XS40 FPGA board: it used to run VHDL program I/O Port: Port A is connected to the 6 outputs from the XS40 FPGA board, D-latch from the 4th D-latch chip, and the last used PIN being grounded. Port B is connected to the common RESET. I/O port is then attached by a ribbon cable from the computer. This configuration is simply to send inputs to the computer, where a calculator program is implemented. Once a digit, an operand, or an equal sign has been entered, it is sent to the computer and then the computer will automatically clear the writing panel through Port B to RESET. Circuit Diagram and Block Diagram ...

Sunday, November 24, 2019

Musical period essays

Musical period essays The Renaissance period saw the rise of the middle class. All the wealth did not go straight to the higher class and the middle class became more privileged and able to experiment with their own music. People moved to cities, and spent more time seeing plays and concerts. Music became part of a good education. By 1600, popular music of the day was available across Europe, and the middle class learned to play instruments using method books for recorder, lute, and guitar. Composers like Giovanni Palestrina led the way into a new way of composing. Man, rather then God, became the new focus in a great deal of music. Composers now turned to another dimension of music, and the use of harmony changed music for ever. There were two main musical types during the renaissance period Secular Music and Sacred Music. The sacred music of the Renaissance period originated from the plainsong used in the Middle Ages by the monks. This simple two-line polyphony was expanded to use up to four different vocal parts. This new vocal form was the called the motet, Giovanni Palestrina were the most famous Renaissance composer of motets he believed that the music was more important than the words. Music began to become very ornamented at this time and Motets became more ambitious and elaborate; more and more voices were also used and movements became longer and cleverer. The other most popular form of music in the renaissance period was secular music this was defined by Madrigals which were songs for small groups of voices without instruments. Usually about love Madrigals became very important for special occasions usually such as at feasts and weddings and often had verses with repeated choruses of the popular music of the time. Renaissance period music was able to be defined by the use of polyphonic rhythms and compositional styles for instruments these pieces were often written to accompany ballroom dancing...

Saturday, November 23, 2019

Vladimir Zworykin, Father of the Television

Vladimir Zworykin, Father of the Television Vladimir Zworykin (July 30, 1889–July 29, 1982) is often called the father of television, but he never accepted that, stating that he shared credit with many others such as David Sarnoff. Among his 120 patents are two instruments that were critical to the development of television: the iconoscope camera tube and the kinescope picture tube.   Fast Facts: Vladimir Zworykin Known For: Called the Father of Television for his work on the iconoscope camera tube and the kinescope picture tubeBorn: July 30, 1889 in Murom, Russia.Parents: Kosma A. and Elana ZworykinDied: July 29, 1982 in Princeton, New JerseyEducation:  Petrograd Institute of Technology (electrical engineering, 1912), Ph.D, University of Pittsburg 1926Published Works: More than 100 technical papers, five books, 120 patentsAwards: 29 awards, including the National Medal of Science in 1966Spouse(s): Tatania Vasilieff (1916–1951), Katherine Polevitsky (1951–1982)Children: Elaine and Nina, with his first wifeNotable Quote: I hate what theyve done to my child†¦I would never let my own children watch it. (on his feelings about television) Early Life Vladimir Kosma Zworykin was born on July 30, 1889, the youngest of surviving seven (from the original 12) children of Kosma A. and Elana Zworykin of Murom, Russia. The well-to-do merchant family was dependent on Kosmas role as the owner of a wholesale grain business and a successful steamship line. In 1910, Vladimir entered the St. Petersburg Institute of Technology, where he studied electrical engineering under Boris Rosing and saw his first television. Rosing, a professor in charge of laboratory projects, tutored Zworykin and introduced his student to experiments of transmitting pictures by wire. Together they experimented with a very early cathode-ray tube, developed in Germany by Karl Ferdinand Braun. Rosing and Zworykin exhibited a television system in 1910 using a mechanical scanner in the transmitter and the electronic Braun tube in the receiver. After graduating in 1912, Zworykin entered the College de France in Paris, studying x-rays under Paul Langevin, but the studies were interrupted in 1914 with the outbreak of World War I. He then returned to Russia and worked as an officer with the Russian Signal Corps.   Leaving Russia Zworkyin married Tatania Vasilieff on April 17, 1916, and they eventually had two daughters, Nina Zworykin (born 1920) and Elaine Zworykin Knudsen (born 1924). When the Bolshevik Revolution broke out in 1917, Zworykin was working at the Russian Marconi company. Rosing disappeared in the chaos, the Zworykin family home in Murom was seized by revolutionary forces, and Zworykin and his wife fled Russia, making two trips around the world before settling down in the United States in 1919.  He briefly worked as a bookkeeper in the Russian Embassy before joining Westinghouse at East Pittsburgh, Pennsylvania in 1920. Westinghouse At Westinghouse, he worked on a number of projects from gunnery controls to electronically controlled missiles and automobiles, but his most important were the kinescope picture tube (the cathode-ray tube) in 1923 and then the iconoscope camera tube, a tube for television transmission used in the first cameras in 1924. Zworykin was one of the first to demonstrate a television system with all the features of modern picture tubes. He became a U.S. citizen in 1924, and in 1926 he obtained a PhD from the University of Pittsburgh with a dissertation on a method of greatly improving the sensitization of photocells. On November 18, 1929, at a convention of radio engineers, Zworykin demonstrated a television receiver containing his kinescope and obtained his first patent associated with color television. Radio Corporation of America In 1929, Zworykin was transferred by Westinghouse to work for the Radio Corporation of America (RCA) in Camden, New Jersey, as the new director of the Electronic Research Laboratory and at the invitation of RCAs president, David Sarnoff, a fellow Russian emigre. RCA owned most of Westinghouse at that time and had just bought the C.F. Jenkins Television Company, makers of mechanical television systems, in order to receive their patents. Zworykin made improvements to his iconoscope, and RCA funded his research to the tune of $150,000. The further improvements allegedly used an imaging section which was similar to Philo Farnsworths patented dissector. Patent litigation forced RCA to start paying Farnsworth royalties. 1930s and 1940s By the mid-1930s, Zworykin worked on his own projects and provided leadership for an extensive number of young scientists. He became intrigued by early work on the electron microscope, and he set up a lab and hired Canadian James Hillier, who had built a prototype as a graduate student, to develop one for RCA. During World War II, Zworykin had input into airborne television that was used to guide radio-controlled torpedoes and a device that helped blind people read. His laboratories were tapped to work on stored-program technology for the early computers, and he explored- but didnt have much success with- self-driven cars. In 1947, Sarnoff promoted Zworykin to vice president and technical consultant to the RCA laboratories. Death and Legacy In 1951, Zworykins wife Tatania Vasilieff, from whom he had been separated for better than a decade, divorced him, and he married long-time friend Katherine Polevitsky. He was forced to retire at 65 from RCA in 1954 but continued supporting and developing research, serving as director of the Medical Electronics Center at the Rockefeller Institute in New York. In his lifetime, Zworykin authored more than 100 technical papers, wrote five books, and received 29 awards. Among them was the National Medal of Science- the highest scientific honor in the United States- which President Lyndon Johnson presented to Zworykin in 1966 â€Å"for major contributions to the instruments of science, engineering, and television, and for his stimulation of the applications of engineering to medicine.† In retirement, he was a founder and the first president of the International Federation for Medical and Biological Engineering; he was inducted into the National Inventors Hall of Fame in 1977. Vladimir Zworykin died on July 29, 1982, one day shy of his 93rd birthday, at the Princeton (New Jersey) Medical Center. Sources Abramson, Albert. Vladimir Zworykin, Pioneer of Television. Urbana: University of Illinois Press, 1995.Froehlich, Fritz E. and Allen Kent. Vladimir Kosma Zworykin. The Froehlich/Kent Encyclopedia of Telecommunications (Volume 18), p 259–266. New York: Marcel Dekker, Inc., 1990.Magill, Frank N. (ed.). Vladimir Zworykin. The 20th Century O–Z (Volume IX) Dictionary of World Biography. London: Routledge, 1999.Thomas, Robert McG. Jr. Vladimir Zworykin, Television Pioneer, Dies at 92. The New York Times, August 1, 1982.Rajchman, Jan. Vladimir Kosma Zworykin, July 30, 1889- July 29, 1982. National Academy of Sciences Biographical Memoirs 88:369–398 (2006).

Thursday, November 21, 2019

Affection of the Rising of the Sea Level on Global Warming Research Paper

Affection of the Rising of the Sea Level on Global Warming - Research Paper Example The controversial issues include among others the causes of increased temperatures in the recent years and mostly due to human activity. Various questions are raised during research on global warming, which include if the warming is not planned for or it is normal within the climatic changes, whether human beings have significantly contributed to this or if the increase is completely or partially an artifact of poor measurements (Archer 17). Also controversy over estimates of climate sensitivity, predictions of more warming and the outcomes of global warming has been rife among scientists’ assessment reports (Weart 14). Human activities continue to affect the content of the atmosphere especially through gas emissions from green houses and aerosols generated from various human activities, and this keeps on changing the atmosphere in a manner that is most likely to affect the climate. Thus it is deemed that natural factors contributing to global warming are very small as compare d to activities that people engage in top change atmospheric concentration of greenhouse gases. Rising of the Sea Level The warming of the atmosphere has resulted to higher sea level due to the fact that land and lower atmosphere of a warmer climate result to heat being channeled into the oceans (Neumann, Yohe, Nicholla and Manion 12). Heating of materials leads to their expansion which is referred to as thermal expansion, thus the transfer of heat results to the expansion of sea water, which results to a rise in sea level. Warm temperatures might result to the following effects on the earth’s surface’s natural resources, in the ice lands and oceans. When non-polar glaciers melt, they release water might flow into the ocean thus contributing to a sea-level rise. Glaciers are highly sensitive to change in climate and, therefore, melt at a very fast rate and the water flows to oceans and the effect is increase in sea levels (FEMA 10). Ice increases from snowfall and is b alanced by ice loss from melting and the discharging of glaciers in the Greenland (Archer 38). Forecasts show that increase in melting from higher temperatures will cause an increase in precipitation. Thus, the changes in the ice balance will add water to the ocean, hence contributing to rise in sea levels. Almost all of Antarctica is covered by a sheet of ice, which is 2.5 kilometers thick and if the ice covering Antarctica was to melt, then there would be an over 60 meters rise in the sea levels. However, increase of a few degrees in the Antarctic would not change the melting point of ice since it is so cold there and extremely high temperatures will melt down the ice. Though thermal expansion is not an obvious process than melting ice, weather professionals argue that it remains a major contributor of projected sea-level rise in the 21st century. It has been difficult for scientists to be precise with sea-level forecasts since there are a number of uncertainties. The first one is greenhouse gas concentrations and scientists agree that depending on the levels of increase in these gases will determine the future rise in atmospheric temperatures and consequently sea levels. However this depends on a number of factors, for example, growth in population, use of energy and development of new technologies. Climate sensitivity, which refers to the level of atmospheric warming that result from the increasing carbon dioxide in the air, is another factor (Houghton 48). This is significant enough to be regarded as a source of uncertainty in the forecast of long-term climate change, as the levels of carbon dioxide are bound to change with time. Another factor is ocean heat exchange, where there is heat movement between

Muslims and America Essay Example | Topics and Well Written Essays - 750 words

Muslims and America - Essay Example One of the mostly viewed episodes or films in the US is â€Å"30 days: Muslim and America.† The episode was directed by an American, Morgan Spurlock. The film has one main character, Dave, who is a Christian and goes to live in a Muslim family with an aim of learning the Islamic culture. The film has a variety of thematic constituents including religious discrimination, hatred, culture and several others. The episode situates the viewers in a crazy world of terrorism blames and hatred. It makes one think of existing religious differences and conflicts in the American society. Moreover, it probes some reasoning and comprehension of the conflict. By using an American, Dave, who has also the same perception, it is quite predictable that whatever he will face in the Muslim society is violence. This perception however changes when Dave, the Christian American, finds out a total different story in his 30 days of stay in Dearborn, Michigan where most Muslims in the US stay. The episode also situates the viewers in a position where they can easily tell who the wrong one is between the groups, Americans and the Muslims. This is through following carefully Dave’s experience while living in Muslim communities in Dearborn and Michigan. The presence of Mosque and Quran aids in forming more ideas concerning the Muslim society. Dave learns of the friendly nature of the Muslim people and gets convinced that all the evils that people do say about the Muslims are false. For one to comprehend the phenomena in the episode, it is advisable that he or she avoid developing any form of attitude or mental rigidity on certain ideas. Otherwise; the episode will seem like a dream to him or her. Everything will seem to be false. For instance, a viewer with a rigid or static belief that Muslims are terrorists or are always bad people will never gain, or learn any lesson from the episode. One has to develop a neutral mind and love for all; in short, it is better for a viewer to put himself or herself in the shoes of professional judicial persons like judges before venturing into the episode. One must also understand that different groups of people have different cultural behaviors and beliefs. Therefore, an individual should not view or perceive anything done by his or her neighbors as evil and condemn it (Arshad, 2003). Culture is a very crucial aspect of every society and each person should respect one another’s for the purpose of creating a leeway to p eace discovery. The episode situates or positions the viewers in different ways. First, Spurlock has employed a lot of symbolism in a bid to place the viewers in a Muslim society (Arshad, 2003). Through the use of Mosque, Muslim dressing styles, and eating styles, he has indeed made most viewers, I included imagine being in a Muslim society experiencing and learning their cultures. He has also used the interviewing method on both two sides to get their opinions concerning one another. An example of such is the interview of an old man by Dave (Zelizer, 2007). The man tells him that all religions are bound by one common thing or person who is God. The man goes ahead to state that there is only one God with different names. He quotes that â€Å"when one takes one life he destroys humanity† from the Quran (Spurlock, 2011). Spurlock has also employed certain words, editing styles and images to encourage us viewers form certain ideologies. The words like, Jesus Christ and Mohammed, Bible and Quran, have been used in the episode to encourage viewers to form and maintain neutrality throughout the episode. He has also used images like the mosque and Camels (in form of cartoons) to represent a Muslim society in Asia (Zelizer, 2007). The episode also talks much about mistreatment; it does not mention any problems caused by the Muslims to the Christians. However, since the Muslim

Wednesday, November 20, 2019

Focus on Society Essay Example | Topics and Well Written Essays - 500 words

Focus on Society - Essay Example The point that needs to be taken into consideration is that no other art form is so fervently associated with economics and business as films. So, by necessity a film has to retain a delicate balance between expressing social realities so that the viewers may relate to it, while at the same time being artistically creative and involving, thereby addressing the commercial constraints and expectations (Curran, 1998). Cinema is an art form with a very large scope, canvass and budget. Yet, it is also a medium endowed with a greater responsibility towards society as compared to other art forms. So films do get influenced by the social context in which they are created, though the vivid blend of imagination, reality, glamour, intensity and conflict presented in them never fails to directly or indirectly influence the viewers in varying proportions (Hayward, 2000). It will be really relevant to talk about the 1994 comedy-drama Forrest Gump. The film, revolving around the life of a simpleton from Alabama, Forrest Gump, in a way presents the important social, popular and historical issues and events of the 20th century America. Yet, the film did not portray the American history with the simplicity of a school textbook.