The first polyurethane synthesised by Dr Otto Bayer‚ in 1937‚ at IG Farbenindustrie Germany‚ by the reaction of a polyester diol with a diisocyanate‚ opened a new way in macromolecular chemistry: that is the synthesis of polymers by a new reaction‚ called polyaddition reaction. Polyurethane (PUR and PU) is any polymer composed of a chain of organic units joined by carbamate (urethane) links. Polyurethane polymers are formed through step-growth polymerization‚ by reacting a monomer (with at least
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The word garrulous means excessively talkative‚ especially on trivial matters. In the next line Philoctete is going to tell his secrets. He is being talkative and open with the nature around him about his secrets. 2 A waterfall is often used as a way to represent change and often a turning point in one’s life. The water that is falling is always different and changing. 3 Translates to English as the witch. La Sorciere is a mountain in Gros Islet‚ Saint Lucia‚ situated between Desbarra and Derniere
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Victorian Certificate of Education 2009 General Achievement Test Thursday 11 June 2009 Reading time: 10.00 am to 10.15 am (15 minutes) Writing time: 10.15 am to 1.15 pm (3 hours) QUESTION BOOK Structure of book Type of questions Number of questions to be answered Suggested times (minutes) Suggested time allocation Writing Task 1 Writing Task 2 Multiple-choice questions 1 1 70 30 30 120 10.15 – 10.45 10.45 – 11.15 11.15 – 1.15 • Students are permitted to bring into the examination
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WELDING OF CAST IRON Cast iron is an extremely versatile material‚ used in thousands of industrial products. It is hard‚ wearresistant‚ and relatively inexpensive. Like steel‚ it is available in many different grades and compositions. While we usually think of cast iron as being brittle (having low ductility)‚ this is not true of all cast irons‚ as we shall see shortly. Cast iron‚ like steel‚ is an iron-carbon alloy. In composition and structure‚ and in some of its properties‚ it is quite different
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Committee’s implications of the Roughing-the-Passer and Defenseless player rules are prime examples of the tradition changing‚ and these rules are progressively turning the game soft. Football has always been a sport that emphasizes brutality and toughness‚ but over the years‚ the implications of all these rules are starting to change the tradition of the game‚ and it is progressively making the NFL lose its value. One tradition that has been recently altered is the kickoff line claims sports writer
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Analysis: “Panopticism” and “Our Secret” In Michael Foucault’s reading on “Panopticism” he breaks down the social/economical systems and explains that society’s mentality on the law system. He answers the “why question” in a way certain individuals act and think as they do. Many times his explanation is much branched off into a different level of thinking. In one paragraph in “Panopticism”‚ a disciplinary mechanism is described‚ which is considered the best way for one person to be punished
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Reaction Paper-Non-Fiction Carolyn C. Jolley ENG/125 July 31‚ 2013 Dr. Ozichi Alimole Reaction Paper-Non-Fiction Having traveled a great deal since birth‚ partly due to my father being in the Air Force and the rest is blamed on some gypsy spirit residing deep within‚ much of Gretel Ehrlich’s story‚ “About Men” resonated with me. I understood her loneliness for places once visited‚ and the need to find solace in the now places as she did while on the New York Subway searching for posters of
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Module 2 Discussion 1. Looking back at Hofstede’s dimensions of cultural differences (chapter 2‚ pg 39-41)‚ describe a significant difference between cultures that you have witnessed. Use the Geert Hofstede website links below to compare the two cultures in your example and describe the relative merits of the different approaches in an organizational situation. Main Hofstede Web site: http://www.geert-hofstede.com/ (page down for descriptions of the cultural dimensions) Compare two cultures:
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Material selection Park bench – * Durability * Cost * Bio compability? * -thermal conductivity * Visual * stress Hip joint * Weight * Cost * Reactivity * Biocompatible * resistant to corrosion‚ degradation‚ and wear. * Tough Park bench – Thermoplastic Coated Steel concrete‚ wood Hip joint Zirconia - ball (fermoral head) Silicon carbide- brace fermoral stem Alumina matrix composits Park bench A park bench isn’t just
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Resilience “Persistence and resilience only come from having been given the chance to work though difficult problems.” Resilience is‚ “the capacity to recover quickly from difficulties; toughness.” (Oxford Dictionary‚ n.d.) It’s a imperative skill that is commonly demonstrated‚ particularly after experiencing adversity. Being resilient doesn’t mean we overcome change instantly‚ rather‚ we accept the situation and try to grow from the knowledge we gained. It’s a sense of determination that pushes
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