Thermosyphons :: physics

Tasked with the quest to economically and efficiently extend civilization into the Northern regions, the construction industry has been hindered by the presence of perennially frozen ground. The thermosyphon is a device that facilitates the harmonious union of structure and ice. This paper will serve as a tutorial on thermosyphons, and present an exploration into the physical concepts that allow their operation. The physical concepts and phenomenon that enable the operation of thermosyphons can at times be complex-but don’t be scared. This tutorial will start with the most rudimentary explanation of thermosyphons, and proceed from there to deliver more in depth examinations in a step by step process. Let’s get right down to business. The steps in thermosyphon operation are: STEP 1-Heat flows into the thermosyphon, STEP 2-Heat flows through the thermosyphon tube, and STEP 3-Heat is released into the atmosphere. Simply stated, a thermosyphon is a device which moves heat from one place to another. There are different types of thermosyphons which are used for different applications, but for the purposes of this primer we will concentrate on thermosyphons used by the construction industry to stabilize frozen ground. For example, consider a road built over permafrost.. In this situation it is desirable to keep the ground from thawing, otherwise the road embankment will be destroyed. A thermosyphon â€Å"collects heat† from the frozen ground. This collected heat is brought to the top of the thermosyphon and the cooling fins, where it is released into the atmosphere. In this way, the ground remains frozen. Now, the thought of frozen soil warming the atmosphere may be hard to grasp. This brings us to an important point about the thermosyphon- they only work when the ambient air temperature is below the temperature of the soil (less than 31 degrees Farenheight). With this in mind, we can consider thermosyphons from a different perspective; a thermosyphon increases the exposure of sub-surface soil to freezing temperatures. Another thought, although not totally correct from a physical standpoint, is that the thermosyphon brings cold into the soil. Let’s examine the thermodynamic process by which a thermosyphon operates. This process is outlined below in a step by step chronology. Step 1-There is an accumulation of the working fluid in the bottom of the thermosyphon. The most important factor that governs the choice of a working fluid is that it must have an extremely low boiling point. Permafrost soil is typically at a temperature of 31F and consequently the fluid boiling point should be less than 31F.

Pizza Hut †KFC Essay

Description: The Indian fast food market has been witnessing rapid growth on the back of positive developments and presence of massive investments. Currently, market growth is largely fuelled by the rising young population, working women, hectic schedules, and increasing disposable income of the middle-class households. Some of the unique properties of fast food like quick served, cost advantage, etc are making it highly popular among the masses. Thus, India offers enormous opportunities for both domestic as well as international players. According to this new research report, â€Å"Indian Fast Food Market Analysis†, the Indian Fast Food Industry is anticipated to grow at a CAGR of around 34% during 2011-2014. Anticipating the future growth, many big international players are entering into the market by making deals with the domestic players. And those already present in the Indian market are expanding their presence in different provinces of the country. This trend will emerge more strongly during BMI’s forecast period, providing opportunities to local players to widen their product portfolios. BMI research further revealed that there is a large scope of growth in the untapped tier-II and tier- III cities, owing to which, major fast food retailers have already started applying various marketing strategies in popularizing their brands in these cities. Furthermore, they are aiming to provide affordable and customized products to suit the needs of people that would ultimately provide necessary boost to the Indian fast food industry. The report also provides extensive information on the country’s fast food market, besides discussing the growing segments like Noodle market, Pizza market, and others food market. Thus, it provides valuable information about the Fast food companies and provides necessary insight for investors looking to enter this market. Moreover, the report features forecast for fast food sales in the country. The forecast is based on the correlation between past market growth and growth in base drivers, such as middle class, urbanization, cultural shift, and lifestyle changes. Due consideration is given on competitive landscape to enable clients to understand market structure and growth prospects. Contents: 1. Analyst View 2. Research Methodology 3. Indian Fast Food Potential 3. 1 Large Consumer Base 3. 2 Rising Purchasing Power 3. 3 Rapid Urbanization 3. 4 Changing Lifestyle 4. Indian Fast Food Market Analysis 4. 1 Market Size and Growth 4. 2 Performance by Product 4. 2. 1 Pizza 4. 2. 2 Instant Noodles and Pasta 4. 2. 3 Others 5. Consumer Behavior Analysis 6. Vital Industry Trends 6. 1 Rapid Expansion in Tier-II and Tier-III Cities 6. 2 Franchise – Preferred Way for Business Expansion 6. 3 A Stiff Competition from Ethnic Fast Food 6. 4 Product Customization Considering Indian Customs 7. Industry Regulation Analysis 8. Market Leaders and their Expansion Plans 8. 1 McDonald 8. 2 Domino’s Pizza 8. 3 Pizza Hut 8. 4 KFC. 8. 5 Nirula’s List of Tables Table 3-1: Population Breakup by Age Group (%), 2011 & 2014 Table 8-1: McDonald – Strength and Weakness Analysis Table 8-2: Domino’s Pizza – Strength and Weakness Analysis Table 8-3: Pizza Hut – Strength and Weakness Analysis Table 8-4: KFC – Strength and Weakness Analysis Table 8-5: Nirula – Strength and Weakness Analysis List of Charts Figure 3-1: Population (Billion), 2010-2014 Figure 3-2: Per Head Disposable Income (US$), 2010-2014 Figure 3-3: Urban Population (Million), 2010-2014 Figure 3-4: Frequency of Eating Out (2003 & 2009) Figure 4-1: Fast Food Market (Billion INR), 2010-2014. Figure 4-2: Pizza Market (Billion INR), 2010-2014 Figure 4-3: Instant Pasta and Noodles Market (Billion INR), 2010-2014 Figure 4-4: Other Fast Food Market (Billion INR), 2010-2014 Ordering: Order Online – http://www. researchandmarkets. com/reports/1246140/ Order by Fax – using the form below Order by Post – print the order form below and send to Research and Markets, Guinness Centre, Taylors Lane, Dublin 8, Ireland. Page 1 of 2 Fax Order Form To place an order via fax simply print this form, fill in the information below and fax the completed form to 646-607- 1907 (from USA) or +353-1-481-1716 (from Rest of World). If you have any questions please visit http://www. researchandmarkets. com/contact/ Order Information Please verify that the product information is correct and select the format(s) you require. Product Formats Please select the product formats and quantity you require: * Shipping/Handling is only charged once per order. 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Prison Abuse

Prison Abuse Americans all know that our prisons are the final frontier for the socially rejected criminals and violent offenders. Once they are convicted, prison is their new home. For which it can be five years or the rest of their lives until death. When the door closes behind them the rest of the world doesn’t matter. It is inside the prison that matters. Those of us who are outside the prison are unaware of what goes on in there, such as prisoner’s abuse. Violence within America’s correctional facilities has become an increasing problem in recent years. With the largest incarceration rate in the world, it is only expected that we face these problems. Unfortunately, it is the correctional staff face with these problems. With the rising of the prison population and the decline of the number of correctional staff, it is only inevitable that violence, within the world’s largest imprisoned population, increases in America’s prison systems. Prison violence is a real issue because people every year are convicted of many different crimes, some severe and some minor. Regardless of the crime committed, everyone in the prison and jail systems is vulnerable to prison violence. Society has even labeled these criminals â€Å"Animals† regardless of the crimes they committed. While they are in prison they are treated as â€Å"Animals†. Prison violence includes the abuse of both prisoners and the guards. This is a crucial problem here in America and we are unaware of it happening in our prisons. All of the prison violence that goes on leads inmates to be severely injured or end up dying from the beat down they receive. There are several articles that are on violence in our prison system. One article by Dan Frosch informs us of an inmate that refuses to follow the orders given to him by the guards in a Utah prison. As a result of his insolence they stripped him naked and tied him to a restraining chair for sixteen to twenty hours then released him to his cell in which he collapsed and died. An autopsy showed the inmate that goes by the name Michael Valent died from a blood clot that blocked an artery to his heart. This article featured in The Nation. Valent had died due to the fact that he was confined to the chair and could not move any part of his person for those sixteen hours when he was restrained: â€Å"The chilling incident made national news not only because it happened to be videotaped but also because Valent’s family successfully sued the State Of Utah and forced it to stop using the device† (Frosch). The guards who had done this to Michael Valent also had done the same to other inmates as well but they lived or the abuse was never recorded. It is likely that incidents like this have happened around America but never been reported or made public knowledge. In some cases the prisoners do not speak out about what is happening to them fearing the consequences from the guards or fellow inmates. Another incident of prisoner abuse was a thirty-seven year old inmate strangled a fellow inmate who is a former priest to death. He was given no protection whatsoever. A former priest who was put in prison for either a minor crime shared a cell with a prisoner who killed someone. The only logical question is whether the law enforcement system inside these prisons or jails goes downhill once the criminals are put behind bars? Should the incarcerated be punished severely by the men that watch over them? Do the guards have a right to use sheer force on these men who haven’t done anything particularly wrong inside prison? Why don’t the guards prevent or stop other inmates from fighting amongst themselves. As we have seen the violence in America’s prisons has gone from bad to worse. There is no way to stop it. There needs to be a solution to this crisis that will not fail at all and will stay solid throughout the years that will not falter what so ever. A solution will protect inmates from the danger that lies within those walls. Works Citied Frosch, Dan. â€Å"Exporting America’s Prison Problems. † TheNation. com, May 12, 2004. Web. 12 Nov. 2009. http://www. thenation. com/doc/20040524/frosch Seabrook, Norman. â€Å"Prison Violence on the Rise. † BNET. USA Today Magazine, 25 Sept. 2005. Web. November 17, 2009. http://findarticles. com/p/articles/mi_m1272/is_2724_134/ai_n15380394/pg_1 Chapman, Stephan. â€Å"The Prisoner’s Dilemma. † New Republic 8 March, 1980, Print.

A White Heron essays

A White Heron essays After the Civil War, Americans no longer depended solely on agriculture as a way of life. Because of the technological and economic advances in America, the picturesque and peaceful New England countryside was slowly being transformed into a modern, industrialist society. As a witness to these economic developments, Sarah Jewett writes A White Heron, a fictional, coming of age story that tells the story of a young girl living with her grandmother in the wilderness as technology slowly tries to transform the area around her. A White Heron demonstrates the importance of being loyal in preserving ones region over the desire for personal and materialistic gain. As the story opens, the author uses imagery to give the reader a sense that the area is very simple, safe, and secure. She establishes that Sylvia feels comfortable and enjoys living on the farm with her grandmother. Even though she grew up in the city, she finds her home in the country with her grandmother. She befriends and develops close bonds with the animals. The tone of the story changes after the antagonist, an ornithologist from the city, confronts Sylvia. He picks up on Sylvias bond with the animals and begins to inquire about a white heron that he has been following. He intends to kill the bird, stuff it, and add it to his collection. The hunter represents the advancement of science and technology and the destruction of nature. He is trying to take a part of nature with him to the city for observation and study. After Sylvia realizes that she has seen the white heron before, she embarks on a journey to find the birds nest by climbing a tree in the woods. This adventure is discussed in great detail because it shows the main characters struggle and the obstacles that she went through to find the birds nest. Climbing the large pine tree gives Sylvia peace, understanding, and perspective of the natural world around her. She begins to better ...

A Timeline History of Mathematics

A Timeline History of Mathematics Mathematics is the science of numbers. To  be precise, the Merriam-Webster dictionary defines mathematics as: The science of numbers and their operations, interrelations, combinations, generalizations, abstractions and of space configurations and their structure, measurement, transformations  and generalizations. There  are several different branches of mathematical science, which include algebra, geometry and calculus. Mathematics is not an invention. Discoveries and laws of science are not considered inventions since inventions are material things and processes. However, there is a history of mathematics, a relationship between mathematics and inventions  and mathematical instruments themselves are considered inventions. According to  the book Mathematical Thought from Ancient to Modern Times, mathematics as an organized science did not exist until the classical Greek period from 600 to 300 B.C. There were, however, prior civilizations in which the beginnings or rudiments of mathematics were formed. For example, when civilization began to trade, a need to count was created. When humans traded goods, they needed a way to count the goods and to calculate the cost of those goods. The very first device for counting numbers was, of course, the human hand and fingers represented quantities. And to count beyond ten fingers, mankind used natural markers, rocks or shells. From that point, tools such as counting boards and the abacus were invented.   Heres a quick tally of important developments introduced throughout the ages, beginning from A to Z.   Abacus One of the first tools for counting invented, the abacus was invented around 1200 B.C. in China and was used in many ancient civilizations, including Persia and Egypt. Accounting The innovative Italians of the Renaissance (14th  through 16th century) are widely acknowledged to be the fathers of modern accounting. Algebra The first treatise on algebra was written by Diophantus of Alexandria in the 3rd century B.C. Algebra comes from the Arabic word al-jabr, an ancient medical term meaning the reunion of broken parts. Al-Khawarizmi is another early algebra scholar and was the first to teach the formal discipline. Archimedes Archimedes was a mathematician and inventor from ancient Greece  best known for his discovery of the relationship between the surface and volume of a sphere and its circumscribing cylinder for his formulation of a hydrostatic principle (Archimedes principle) and for inventing the Archimedes screw (a device for raising water). Differential Gottfried Wilhelm Leibniz (1646-1716) was a German philosopher, mathematician and logician who is probably most well known for having invented differential and integral calculus. He did this independently of Sir Isaac Newton. Graph A graph is a pictorial representation of statistical data or of a functional relationship between variables. William Playfair (1759-1823) is generally viewed as the inventor of most graphical forms used to display data, including line plots, the bar chart, and the pie chart. Math Symbol In 1557, the sign was first used by Robert Record. In 1631, came the    sign. Pythagoreanism Pythagoreanism is a school of philosophy and a religious brotherhood believed to have been founded by Pythagoras of Samos, who settled in Croton in southern Italy about 525 B.C. The group had a profound effect on the development of mathematics. Protractor The simple protractor is an ancient device.  As an instrument used to construct and measure plane angles, the simple protractor looks like a semicircular disk marked with degrees, beginning with 0 º to 180 º. The first complex protractor was created for plotting the position of a boat on navigational charts. Called a three-arm protractor or station pointer, it was invented in 1801 by Joseph Huddart, a U.S. naval captain. The center  arm is fixed, while the outer two are rotatable and capable of being set at any angle relative to the center one. Slide Rulers Circular and rectangular slide rules, an instrument used for mathematical calculations, were both invented by mathematician William Oughtred. Zero Zero was invented by the Hindu mathematicians Aryabhata and Varamihara in India around or shortly after the year 520 A.D.

Organizational Analysis on Wal-Mart Research Paper

Organizational Analysis on Wal-Mart - Research Paper Example The prime intention of the organization of Wal-Mart is to offer best products at lowest price so as to make its customers happy and contended. It mainly targets the customers of modest incomes rates but desiring to live a better life. Due to which, the organization expanded its operation by opening numerous stores in different countries. Wal-Mart comprises of almost 11,000 stores in more than 27 countries that helped the organization to amplify its customer base and distinctiveness in the market among others (Wal-Mart, 2014). The organization of Wal-Mart always desires to offer best quality of products to its customers in order to amplify their reliability and uniqueness in the market among many other rival players. This is done, in order to save the revenue of its target customers that may amplify its brand image and reputation. Moreover, by offering the products at a competitive price, the organization of Wal-Mart desires to enhance their life style and living standard to a significant extent. By doing so, the level of dependency and switchover costs of the customers might get reduced thereby amplifying their profitability and productivity of the organization of Wal-Mart among others. However, in order to become the leader in the segment of retailing, the organization of Wal-Mart need to offer best products at an effective price. Only then, it might become successful in amplifying its dominance and position in the market among others. But in order to fulfill the mission statement of the organization in an effective way, the human resource management offer significant concentration over certain areas such as planning, staffing, human resource development, compensation, employee relations, safety, security and risk management. This means, in order to offer best products, the organization tries to satisfy all the needs and demands of its employees effectively such as presenting

Management Assignment Example | Topics and Well Written Essays - 500 words - 1

Management - Assignment Example esponse, my cousin summed up nearly all what my sister and uncle had told me with slight addition, telling me that HR also assigns tasks and activities to individual workers. I agreed the most to my cousin’s response because I personally think that assigning activities to the employees is one of the fundamental tasks of HR. From the responses of all three of them, I could assess that they generally try to maintain a very nice relationship with HR professionals. They do not happen to see the HR professionals on a regular basis, though whenever they do, they talk to them very nicely and tend to remain in the good books of the HR. Specifically, my cousin’s response was somewhat interesting. He said, â€Å"Either you don’t see the HR professionals too much or you interact too often, but in the second case, you should be sure that you know what you are doing!† I think one should maintain a balanced relationship with the HR professionals and should interact when necessary, but obviously nicely. They had mixed perceptions about HR. My sister said she was like friends with them. My uncle said, â€Å"They interfere too much but you don’t mind since they are only doing their duty.† My cousin said he thought of them as monsters that often hammer his head in his dreams. He said he got nervous whenever some HR professional passed by because the HR professional might be spying on him in which case, the result would show up in the performance appraisal process. I agreed more with my uncle’s response to the question of perceptions about HR professionals. The function of HRM is extremely important for an organization because it serves as the skeleton of the organizational system. I personally feel interested in the authority and superior impression of the HR professionals on other workers. HR department is the second name for quality control (QC) department, which is â€Å"the terror† for most people. Since, I am quite skilled in planning softwares, I know how to organize