Into The Human Geography The Apple Iphone - 1385 Words

Montgomery 1 William Montgomery November 17, 2016 Into to Human Geography The Apple IPhone The product that I choose for my commodity chain project was the Apple IPhone that has been one of the most popular cell phone devices since its initial release in June of 2007. The idea around me picking the iPhone revolved around the fact that I have owned every generation Apple IPhone since the first generation IPhone release and am very familiar with its technology and background. In the initial part of this paper, I will discuss the rudimentary junctures in the iPhones commodity chain such as manufacturing and retail sale. In the latter half of my paper, I will then specifically investigate into the people who physically produce the iPhone and their living conditions, ways of life, and overall character. It is important to understand that even though Apple is a very profitable company that sells successful, unique products, they still use a contract manufacture known as Foxconn that is known for their harsh work environments and poor labor treatment. In terms of the Apple IPhones different components, most of all its parts are manufactured in different places such as North Caroline, Ohio, Texas, California, China, and Kentucky with most of their bulk-manufacturing coming Montgomery 2 from Taiwan and Japan. That being said, the first initial minerals used to make up the iPhone are originally from China. According to Finances online, â€Å"Ninety percent of rare earth minerals,Show MoreRelatedHow Recent Economic Trends Influence Business Essay1588 Words   |  7 Pagesreduced demand for products it means that Apple will have reduced sales. Other effect of recession on business includes increased risks and also businesses looking into new methods to cut down on cost. 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Why I Agree With Seneca s Reasoning And How It Has Helped Me

In this paragraph, I am going to elaborate on why I agree with Seneca’s reasoning and how it has helped me. After analyzing Seneca’s main arguments on ethics and reflecting on past events in which I reacted in an irrational manner, I have come to the conclusion that I exhibit destructive emotions predominantly when I desire something beyond my control. In Nassim Taleb’s â€Å"Fooled By Randomness,† one of the chapters is titled â€Å"If your so smart, why aren’t you rich?† It is a constant reminder to myself that acquiring prosperity has more to do with luck than one’s work ethic, but a strong work ethic does help. In mathematics, there is a simulation which can help show the sequence of sample paths that result from a random event. Taleb describes the Monte Carlo Simulation as, â€Å"One sets conditions believed to resemble the ones that prevail in reality, and launches a collection of simulations around possible event† (Taleb 43). These alternative sample paths illustrate all the potential outcomes, rather than only one, the one which plays out in history. Why is this important? It is relevant because it is something Seneca implicitly eluded to 2000 years ago; rather than solely focusing on the event that occurred, known as survivorship bias, they looked at the whole picture. They understood that adversity and luck were products of randomness. Therefore, they realized it was irrational to become dependent on such a thing, dependence breeds anxiety and other destructive emotions. AShow MoreRelatedStephen P. Robbins Timothy A. Judge (2011) Organizational Behaviour 15th Edition New Jersey: Prentice Hall393164 Words   |  1573 Pagesand permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means, electronic, mechanical, photocopying, recording, or likewise. To obtain permission(s) to use material from this work, please submit a written request to Pearson Education, Inc., Permissions Department, One Lake Street, Upper Saddle River, New Jersey 07458, or you may fax your request to 201-236-3290. Many of the designations by manufacturers

Headloss Through a Valve Free Essays

Fluid Mechanics Lab Head Loss Through a Valve April 24, 2012 Abstract This experiment determined the relationship between the head loss through a gate valve and the degree of opening of that valve with varying flow rates. The objective of this experiment was to determine the valve loss coefficient, K, for a specific gate valve as a function of both the pipe Reynolds Number, and the degree of opening. The relationship between the Reynolds Number and the friction factor was constant. We will write a custom essay sample on Headloss Through a Valve or any similar topic only for you Order Now Regardless of what the Reynolds Number was, the friction factor remained the same. This means that the valve head loss coefficient, K, only depended on the degree of opening of the gate valve. As the valve is slowly turned closed, the Major Head Loss due to friction along the pipe, decreases, and the Minor Head Loss, due to the friction through the gate valve, increases. There is a positive linear relationship between the Reynolds Number and the head loss coefficient. The slope of this linear relationship showed that as the flow rate increases, the velocity increases which means the Reynolds Number gets bigger and the head loss coefficient increases. Therefore, the higher the flow and the smaller the degree of opening of the gate valve, the greater the head loss becomes through the gate valve. Table of contents Abstract†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦ i 1Introduction1 1. 1Background1 1. 2Theory1 1. 3Objective1 2Apparatus and Supplies1 3Procedures4 4Equations4 5Experimental Results5 6Error Analysis9 7Conclusions9 8Recommendations for Further Studies10 9References10 APPENDIX Table of Figures Figure 21: Pressure Differential Gauge ? p. 2 Figure 22: Weighing Tank with Dump Valve open. 3 Figure 23: Pressure Differential Gauge between Valve Set-up3 Table 51: Constants and given values. 5 Table 52: Measured Data. 5 Table 53: Volumetric Flow, Velocity, Reynolds #, Head Loss Coefficient. 6 Table 54: Real values of K, Major Head Loss, Minor Head Loss. 6 Introduction Background Gate valves are frequently used when constructing and fitting pipes. They provide the capability to shut off specific lines so that repairs or renovations can be made without having to turn off the main supply lines. Although these valves are useful, they also disturb the normal flow and cause friction. Theory The head loss coefficient, K, for a gate valve is related to the Minor Head Loss, Hlm, where Hlm=V22gK. The total head loss in the pipe is divided into two parts: the Major Head Loss, Hf, due to the pipe friction over length L, and the Minor Head Loss. Using the Bernoulli’s energy equation, the coefficient, K, can be found: K=2g? PV2? -fLD. Objective The objective of this experiment was to determine the valve loss coefficient, K, for a specific gate valve as a function of both the pipe Reynolds Number, and the degree of opening. Apparatus and Supplies * 1 Weighing Tank with Dump Valve ( ±0. 5 lb) * 2 Stop Watches ( ±0. 01 sec) * Galvanized Iron pipe 27 inches ( ±0. 03125 in) long with a diameter of 1. 1 inches ( ±0. 0005 in) * 1 Pressure Differential Gauge ( ±0. 05 psi) * 1 Valve located in between the Pressure Differential Gauge on Galvanized Iron Pipe Figure 21: Pressure Differential Gauge ? p. Weighing Tank Dump Valve Figure 22: Weighing Tank with Dump Valve open. Figure 23: Pressure Differential Gauge between Valve Set-up Procedures 1. Measure the distance between the upstream and downstream pressure tabs. 2. Turn the handle on the gate valve to determine how many turns exist between fully-opened and fully-closed. 3. Turn on the pump and open the dump valve in the weighing tank. 4. Turn the gate valve so that it is completely open. 5. Record the Pressure Difference 6. Close the dump valve in the weighing tank. 7. Start and stop the stopwatches over a 100 lb difference and record the times. 8. Open the dump valve in the weighing tank and allow water to drain into the sump. 9. Change the flow of water. Do not change the gate valve. 10. Repeat steps 5-8. 11. Turn the gate valve to 75% open. 12. Change the flow of water. 13. Repeat steps 5-9 a total of three (3) times. 14. Turn the gate valve to 50% open. 15. Repeat steps 12 and 13. 16. Turn the gate valve to 25% open. 17. Repeat steps 13 and 13. Equations Head Loss Coefficient: K=2g? pV2? -fLD Major Head Loss: hf=fLDV22g Minor Head Loss: hlm=KV22g Reynolds Number: Re=VD? Area of Pipe2: A=? 4D2 Velocity: V=QA1 Volumetric Discharge: Q=? W? t*? Experimental Results Table 51: Constants and given values. Table 52: Measured Data. The friction factor f=0. 049 was calculated based on Ks/D and the Reynolds Number. Table 53: Volumetric Flow, Velocity, Reynolds #, Head Loss Coefficient. Table 54: Real values of K, Major Head Loss, Minor Head Loss. Error Analysis There were some values calculated for the valve loss coefficient, K, which were negative. This is impossible because a negative K value would give you an overall gain in energy as water flows through the valve according to Bernoulli’s energy equation. According to the equation used, gravity and the specific weight of water are constant. The length and diameter of the pipe along with the velocity had relative errors due to human accuracy, but all of these were negligible. This leaves the friction factor, f, and the pressure differential readings. The calculated value of the friction factor was given and was probably over estimated and the absolute roughness of the pipe was less. The accuracy of the pressure differential gauge was also a possible source of error. Looking at the data, the first five readings all had negative K values and they all had very low pressure differential readings. The accuracy of the readings become more inaccurate the closer the readings are to the endpoints of the scale. Conclusions According to the Moody Diagram and the absolute roughness stated, the relationship between the Reynolds Number and the friction factor was constant. Regardless of what the Reynolds Number was, the friction factor remained the same. This means that the valve head loss coefficient, K, was only depended on the degree of opening of the gate valve. As the valve is slowly turned closed, the Major Head Loss due to friction along the pipe, decreases, and the Minor Head Loss, due to the friction through the gate valve, increases. There is a positive linear relationship between the Reynolds Number and the head loss coefficient. The slope of this linear relationship showed that as the flow rate increases, the velocity increases which means the Reynolds Number gets bigger and the head loss coefficient increases. Therefore, the higher the flow and the smaller the degree of opening of the gate valve, the greater the head loss becomes through the gate valve. Recommendations for Further Studies The experiment could set minimum and maximum standards for readings off the pressure differential gauge. For each valve reading, making the minimum pressure difference greater than 1. 0 PSI and less than 9 PSI would ensure that there are no endpoint inaccuracies. References Giles, Ranald V. , Jack B. Evett, and Cheng Liu. Schaum’s Outline of Fluid Mechanics and Hydraulics. New York: McGraw-Hill, 2009. Print. Appendix How to cite Headloss Through a Valve, Papers

Gullivers Travels Essay free essay sample

In his novel Gullivers Travels, Swift succesfuly uses satire to portray mans pride and folly. Gullivers pride is displayed when he enters the island of Liliput and becomes the pocket-sized peoples savyor. However, his folly is revealed when he gets a huge wake up call after entering Brobdingnag. Through his use of satircal writing, Swift tells the story of how Gulliver reacts and responds to these completely opposite societies. After abandoning ship and swimming to an unknown shore, Gulliver hardly expected to find himself tied down by a society of people half a foot tall. The Lilputions had seen nothing like Gulliver before. Appropriately, they give him the title of Man-Mountain and grant him is freedom in exchange for his loyalty. Gulliver began to feel a sort of self-importance, being much larger than everyone else in Liliput. Swift creates Liliput to mirror the English court. The Liliputians and the Blefuscudians are enemies because one group wants to break the egg on the small end and the other wants to break it on the big end. We will write a custom essay sample on Gullivers Travels Essay or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Just like the English, the two miniscule societies are fighting over insignificant issues. When told to destroy the Blefuscudians fleet he instead picks up the men and brings them to the Liliputions to form a peace treaty. After saving the Liliputions from an attack , Gullivers confidence was at an all-time high. Needless to say, being a colossus gave him rank and importance very flattering to his pride. The Liliputions consider Gullivers attempt of kindness as a form of treason and sentence him to have his eyes gouged out. After nine months of living in Liliput, Gulliver has had enough and leaves right as the Liliputions are deciding how to execute him. Not long after getting home, Gulliver embarks on his next journey. He spends almost a year at sea before entering Brobdingnag, the land of the big people. The tables have turned, and Gulliver is scared out of his wits. To the Brobdingnagians, Gulliver is six inches tall and poses no threate. All though harmless, Gulliver is thought to be a freak of a creature. His glorious title of Man-Mountain has been denounced to an animal; his pride has turned into his foolishness. While living with the Queen, Gulliver tries to explain to the King how wonderful his country is. He describes Englands ways of democracy and the inventions his country has created. However, the King is far from impressed about Gullivers society. He is disgusted with its corruption and lies and gunpowder. He is so apauled that he threatens Gulliver with death if he mentions gun powder another time. While Gulliver thinks he is the best thing to come into Brobdingnag, everyone else considers him rat like and completely unimportant. Through Gulliver, swift explores human shortcomings through two different perspectives. He shows Gullivers over exceding pride while on Liliput and his humbleness in Brobdingnag. His pride and folly.