What Is Operations Research Essay -- essays research papers

This is an Engineering Research Paper. What is operations research? Operations research is the application of the methods of science to complex problems arising in the direction and management of large systems of men, machines material, and money in industry, business, government and defense. The distinctive approach is to develop a scientific model of the system, incorporating measurements of factors such as chance and risk, with which to predict and compare the outcomes of alternative decisions, strategies or controls. The purpose is to help management determine its policy and actions scientifically. (Ravindran, Phillips and Solberg 1987). How does operations research apply to highway systems inefficiency? Let’s find out! â€Å"Automakers don’t build roads and governments don’t build autos, yet we expect cars and roads to mesh together seamlessly to form a transportation network.† For year’s automakers and regional transportation planners have been working to put information age technology to work solving traffic problems. All over the world people are choosing to travel by automobile because this flexible mode of travel best meets their needs. But grid locked expressways threaten to take the â€Å"mobile† out of â€Å"automobile.† This presentation will try to show reasons why our expressways are so congested, what the Federal Highway Administration proposals are to alleviate congestion and the advantages and disadvantages of these proposals under review. Firstly what are some of the causes of urban highway congestion? Rush hour traffic is one of the leading contributors of highway congestion. It isn’t our imagination. Every year commute times to work take longer and longer. Since 1986 car travel has increased almost 40%, while highway capacity has barley grown. As a result most major interstate routes in Metropolitan areas are jammed during rush hours. Grid locked cost Americans almost the equivalent of $51 billion a year in lost wages and wasted fuel. And the situation is only going to get worse. (Steisand, Betsy. 1996). What causes rush hour traffic? Simply put, at specific times of the day be it in the morning or evening motorists in general are either on their way to work or home. There is such a glut of vehicles on the expressways at this time. They all need to get to their destinations at peak times of the day. It is a simple equation: Too many cars incorp... ...napp. Crain’s Chicago Business. , v 22 no2 (Jan. 11 ’99) p. 13. (4)  Ã‚  Ã‚  Ã‚  Ã‚  Ã¢â‚¬Å"Moving forward smartly: The role of ITS in the NEXTEA† by: Jeff, Lindley. Public Roads. , Wntr 1997, v60 n3 p57(4). (5)  Ã‚  Ã‚  Ã‚  Ã‚  Ã¢â‚¬Å"Message in a bottleneck: It’s time to start charging rush hour commuters† by: Betsy, Steisand. U.S News and World Report; Dec 30 1996, v121, n26, p47(2). (6)  Ã‚  Ã‚  Ã‚  Ã‚  Ã¢â‚¬Å"Fighting road rage† by: William B. Cassidy. Traffic World,v. 251 (Aug. 11 ’97) p. 31. (7)  Ã‚  Ã‚  Ã‚  Ã‚  Ã¢â‚¬Å"For Florida a second chance† by: William C. Vantuono. Railway Age. , v. 196 (Apr. ’95) p. 59-60. (8)  Ã‚  Ã‚  Ã‚  Ã‚  Ã¢â‚¬Å"Actual hands-off steering- and other wonders of the modern world† by: Bob, Bryant. Public Roads; Nov-Dec 1997, v61, n3, p32(6). (9)  Ã‚  Ã‚  Ã‚  Ã‚  Ã¢â‚¬Å"91 Express ways do not work well† by: Mackprang, Peter and Harry, Parker. American City and County. , v. 114 no12 (Oct. 1999)p. 6. (10)  Ã‚  Ã‚  Ã‚  Ã‚  Ã¢â‚¬Å"Operational models and traffic control in intelligent vehicle systems† by; Zhang, L. Transportation Research PartA: Policy and Practice; (Jan 1997), v31, n1, p64.

Imperialistic Africa Essay

During the 19th century of the Industrial Age, many European nations (Belgium, France, Germany, Italy, Portugal, Spain, and Britain) sought for a source for raw material and a market for manufactured goods in Africa. This economic motivation helped drive the Scramble for Africa. The Scramble for Africa [1885-1910] was when many European nations competed for colonies in Africa. To take control of these regions, the European powers came up with the Treaty of Berlin. This stated that they would not sell firearms to Africa; which resulted in Europeans having a monopoly on guns in Africa. However, although it stated that they would not sell firearms to Africa making it easier to take it over, it also stated that they would suppress slavery. During the Scramble for Africa, or the imperialism imposed in Africa, there were great contributions that ultimately modernized Africa, as well as, bad influences, such as the carving of Africa without the influence of the traditional tribal boundaries, causing tribalism and civil wars. Many modernizing contributions were in medicine and education. The British built hospital and schools in Africa. They also contributed to putting an end to the slave trade. The access to basic medical care and education were, therefore, due to British intervention. This boost in medical care also heightened many African life spans. Also, some Africans were even allowed to have a western education rather than just basic education. Also, eventually, Britain allowed the African colonies to vote for power, realizing that the only way for safety in Africa was to rule with the people. This eventually concluded with many African nations liberating themselves from British control and becoming an independent nation, such as Republic of Congo (1958), and Tanzania (1964), Although there were some contributions that helped to modernize Africa, there were also many harmful effects from the imperialism of Africa, such as the methods they used to take control of some regions. In other cases, there was not a clear understanding of what the treaties were about or what the consequences of them would be. Secondly, military force was used in some cases when there was a large amount of resistance to colonial rule. Unit Two: Studying Africa through the Social Studies] This suggested that sometimes European nations would use brute force to impose their authority over the native people. For example, during the Battle of Rorke’s Drift, 3,000 to 4,000 Zulu warriors were killed for their land. This left only a remnants of a once strong tribe of warriors. This demonstrates how military force was used in some cases when there was a large amount of resistance to colonial rule. Also, according to The White Man’s Burden, by Rudyard Kipling, many native people did not like European imperialism. For example, in the 1st stanza 4th line, he states,† To serve your captives’ need† This illustrates how many natives thought themselves like prisoners. In another line, he states, â€Å"To seek another’s profit, and work another’s gain. † This demonstrates how rather than how Europeans said they came to protect them by signing the treaty; they actually used the colonies raw materials to help fuel their own economy. A major long-term negative effect that still affects Africa today are the arbitrary political boundaries which European nations established. The European nations never thought about the traditional tribal boundaries. This results with several different tribes in one nation that may feel ill towards one another causing civil wars and power struggles within national governments. For example, the 2nd Congo War involved eight African nations, as well as about 25 armed groups. By 2008 the war and its aftermath had killed 5. 4 million people, mostly from disease and starvation. By the turn of the 21st century, the economy of many African nations was suffering. They were battered by rapid population growth, declining export earnings, foreign debt, drought, floods, and civil war. The average African household consumed 20% less than it had in the 1950s. The continent’s birthrates and mortality rates were the highest in the world. More than half of all foreign aid was consumed by debt service. In addition, over 73% of the more than 40 million people infected with HIV (see AIDS) in 2002 lived in Africa; 30% or more of the populations of Botswana, Lesotho, Swaziland, and Zimbabwe were infected. Nevertheless, Africa largely escaped the financial turbulence that engulfed much of the rest of the world in the late 1990s and again in the early 21st century. [Africa, History of (II)] Because of the imperialism of Africa, many European countries have become powerful nations filled with wealth and prosperity and Africa now have many schools and hospitals. Many Africans can now go to school and get an education and may even one day start businesses. However, the negative aftermaths of European Imperialism on Africa has greatly affected its nations. Because of the long-term political borders dividing Africa, there are many civil wars killing millions of lives and spreading disease. Although Europe brought schools and hospitals, it does not make up for all the lives that could have been saved if the European nations had just considered the traditional boundaries rather than for their own profit. Even the education and health care were not substantial. They were the most basic forms of education and health care. Only very few were allowed to have western education. Therefore, overall there weren’t many positive impacts for the African people from European Imperialism.

Sample Management Plan For Medical Equipment - 1332 Words

2.5Maintenance Management Plan Dyro (2004) indicates that periodic medical device management is a fundamental element of equipment management. Arno, Dowling and Schuerger (2016) report that high reliability and low maintenance costs are common targets for all maintenance programs. A carefully designed preventative maintenance can reduce maintenance costs through the prevention of degradation failure through preemptive intervention. Corrective maintenance is required when a failure occurs and it is often more expensive than a preventative maintenance. Preventative maintenance is implemented to decrease the probability of some particular expected failures and therefore decrease the overall maintenance cost. 2.5.1 Preventive Maintenance Medical equipment is usually expensive and require high mechanical precision, especially for the equipment that produce devices that install in patients’ body. Fennigkoh and Smith (1989) indicate that medical equipment needs constant maintenance to make sure that it can perform required high-requirements, which makes preventive maintenance very important in medical industry. Another benefit of implementing preventive maintenance is that it also decreases expensive corrective maintenance costs. 2.5.2 Preventive Maintenance Regulations for Medical Equipment According to Centers for Medicare medicaid Services (CMS) Preventive Maintenance Regulations (2011) Medical Equipment (e.g., laboratory equipment, IV infusion equipment, biomedicalShow MoreRelatedThe Electronic Medical Records For The Provider1374 Words   |  6 PagesMarsha: 1. The electronic medical record promises to revolutionize the delivery of health care services. Identify the advantages and disadvantages for the patient and for the provider. How much Government regulation should be involved in the development and use? 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