EXPERIMENT: Pressure drop over a bubble cap plate. AIM : This experiment is conducted in an experimental test ring in which the effect of the variation in vapor and liquid flow rates on the pressure drop across bubble cap plates is simulated using air and water to represent the vapor and liquid respectively. THEORY: In a pilot tube the relation between the gas velocity and pressure drop is Where‚ is the differential pressure as expressed in the head of the fluid flowing. Where‚ ’=level
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Nowadays‚ the plate wastes create a serious problem in social and environmental in the United State (Sobal and Nelson‚ 2003). In this study‚ plate waste can be defined as the amount of edible food served to consumer which is the measurement of food loss‚ eating habits that are uneaten. Kantor et al.‚ (1997) showed that the plate waste is the reason for food leftover at the consumer especially in foodservice level and we are wasting half of the food we produced. One important challenge is to study
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Alfred Wegener(1880-1930) was the first man to propose the theory gplate tectonics.h He had got a Ph.D in astronomy from the University of Berlin‚ but he was also interested in the other science field such as geophysics‚ meteorology‚ and climatology. He also contributed to meteorology by establishing to track air circulation using balloon. In 1911‚ he read a paper that listed identical fossils of plants and animals found on opposite side of the Atlantic‚ and he looked for more of such organisms
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of evidence for plate tectonics. It is the patterns on the rocks which presented a problem with the theory. There was thought to be a problem with the description of the movement being “slow and gradual”. According to scientists and geologists the movement would have been performed at a rapid speed. A physicist then predicted where the evidence for this rapid movement could be found and it was later proved that the argument against the theory was correct. The biblical view of plate tectonics conveys
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1. A functional cell could be built with a single chromosome‚cytoplasm‚a cell membrane‚ and ribosomes.Why are these four components absolutely necessary to the functional cell? If these structures are all a cell needs‚ why do most cells have many more structures? A chromosome is necessary so that there is a “map” of the cells function and structure‚ cytoplasm is necessary as it is where most of the cell’s activity occurs‚ ribosomes are essential as they are the site of protein synthesis‚ which
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Bio 225 Chapter 4 Practice Questions 1. Which of the following is not a distinguishing characteristic of prokaryotic cells? a. Their DNA is not associated with histones. b. They have cell walls containing peptidoglycan. c. They lack membrane-enclosed organelles. d. Their DNA is not enclosed within a membrane. e. None of the above. 2. Which of the following is not true about a gram-positive cell wall? a. It contains teichoic acids. b. It protects the cell in a hypertonic environment
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Microbiology case study Spring 2009 Case Study On July 14th‚ a 26 year-old man developed severe nausea and bloody emesis. At a local hospital emergency room‚ he was treated with IV fluids and antiemetic medication and admitted for further observation. That evening he became disoriented‚ combative‚ and had difficulty breathing. On July 16th‚ he became hypotensive and hypoxic and was transferred to a specialty care facility for ventilator support. Examination revealed a temperature of 104
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Microbiology Lab ReportPractica #1BTC307LAmber AmelingmeierThursday‚ September 18‚ 2008OBJECTIVESIn this lab experiment two different types of bacteria‚ Escherichia coli and Staphylococcus aureus‚ were grown singly and mixed on four different types of agar in order to observe the varying morphologies within the colonies. Resulting data was analyzed to provide understanding of the use of differing culture media and conditions for bacterial growth. RESULTSFour different agar types were used in this
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FEMS Microbiology Reviews 27 (2003) 99^127 www.fems-microbiology.org The microbiology of biological phosphorus removal in activated sludge systems Robert J. Seviour à ‚ Takashi Mino‚ Motoharu Onuki Institute of Environmental Studies‚ Graduate School of Frontier Sciences‚ University of Tokyo‚ 7-3-1 Hongo‚ Bunkyo-ku‚ Tokyo 113‚ Japan Received 11 December 2002; received in revised form 18 February 2003; accepted 20 February 2003 First published online 20 March 2003 Abstract Activated sludge
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Organ Harvesting Research Paper We have all heard about the stories and have seen the movies in which the protagonist wakes up in a tub covered in tons of ice and stitches in his side only to realize that he was a victim of organ theft. There have been many movies surrounding this horrid topic‚ and many people believe this concept is fictitious; however these movies have partial truth to them. There are many cases across the globe in which people have been given faulty organs‚ and cases in which
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