FLEXIBLY DIVIDED DOUBLE LUMEN ENDOTRACHEAL TUBE Viren Sunil Kalsekar‚ Joy Lee‚ Jenny Qiu‚ Nicholas Ragosta‚ Javier Ramos‚ David Taylor Massachusetts Institute of Technology Cambridge‚ MA‚ USA ABSTRACT Endotracheal tubes (ETT)‚ are used to maintain patient airway access during surgical procedures. The design presented here addresses a current need of the gold standard ETT by allowing for the passage of a larger bronchoscope through the inner lumen of the ETT while keeping outer dimensions constant
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INTRODUCTION Sugar is one of the main food items consumed in Sri Lanka. The annual per capita consumption of sugar in Sri Lanka is around 30 kg and the total annual requirement of sugar in the country is around 550‚000t. But‚ only about 50‚000 t are produced locally. In a year only 38‚000 t were produced. The balance requirement has to be imported. The total annual expenditure on sugar imports is around Rs. 20 billion. Sugar cane (Saccharum officinarum) is the only crop cultivated in Sri Lanka
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Lumen naturalis: intuition‚ habitus and imagination What is it that sometimes allows the ’question’ that is posed through a musical challenge - a new compositional idea‚ a new musical instrument to master‚ a new improvisational situation - what in these moments is it that sometimes makes the answer emerge with the question‚ in a way similar to how Descartes conceived of the fundamentals of scientific knowing? Just like to Descartes who would refer to it in terms of lumen naturalis (natural light)
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Case Study: Grayson Chemical Company Presented by: Allan Bermudez Marlon Abito Zarny Zaragoza CASE STUDY: Grayson Chemical Co. Executive Summary: Grayson Chemical Co‚ a 40-year old company manufactures industrial chemicals sold to other industrial companies. It has been run by a stable management in which there had only been two presidents. However‚ within the past few years‚ the company is suffering from declining earnings and sales. This has brought pressure from the board of directors
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The type of college that offers the major of chemical health is environmental health engineering colleges. Some schools that offer chemical health are Northcentral University‚ Stanford University‚ Kaplan University‚ University of Notre Dame and many other universities. The requirements that you need to go to a chemical health schools is four years of English‚ four years of years of math which includes one unit of algebra one and two and geometry or the equivalence. You need to have three
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Chemical engineers today face a major dilemma when it comes to deciding what should hold paramount‚ economic gain or moral statute? Many practicing engineers are faced with problems that result from the consequences of their engineering decisions. Engineers have to realize the importance of proper engineering decisions and how one should act when faced with a problem such as deciding what comes first safety or economic gain. When faced with such a problem‚ engineers often employ the risk-benefit
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Case study ChE 515 Reaction Engineering (External) S2 – 2012 Introduction Gia Hung Pham Considerations (Case 1) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Process flow diagram Technical drawing of the reactor Material selection of the reactor body Reactor agitator (Mixing in the reactor) Heat transfer system design Reactor system control Estimation of the overall heat transfer coefficient U of the reactor Energy balance on batch reactor Experimental planning – Reactant analysis
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I. Introduction Victoria Chemicals is one of the leading producers of Polypropelene‚ a polymer that is used in many products ranging from carpet fibers‚ automobile automobile components‚ packaging film and more. When Victoria Chemicals started up in 1967 they built two plants‚ one in Merseyside‚ England and one in Rotterdam‚ Holland. Both plants were identical to each other and produced an equal amount of goods. Morris Greystock‚ the controller of the Merseyside plant had notice a decline in
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Introduction The project provides Dow Chemical with a once-in-a-lifetime opportunity to become the leading petrochemical company in Argentina as well as in Latin America. In addition‚ the petrochemical sector in Argentina is also an oligopoly‚ posing a low business risk for this project. 1.1 Key advantages of the Bahia Blanca petrochemical pole • The PBB cracker is gas-based making it less costly to operate as compared to a naphtha-based cracker; • There is an excess demand for Polyethylene
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Victoria Chemicals: Case study Introduction Victoria Chemicals is a major competitor in the worldwide chemical industry. They are a leading producer of polypropylene‚ which is a polymer used in products such as medical products and automobile components. Victoria Chemicals started up in 1967 when they built two plants‚ one in Merseyside‚ England and one in Rotterdam‚ Holland. Both plants were identical to each other and produced an equal amount of goods. In 2008 these two plants have an old-fashioned
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