Shock Waves (2009) 19:453–468 DOI 10.1007/s00193-009-0220-z ORIGINAL ARTICLE Some physical aspects of shock wave/boundary layer interactions Jean Délery · Jean-Paul Dussauge Received: 9 February 2009 / Accepted: 29 June 2009 / Published online: 26 July 2009 © Springer-Verlag 2009 Abstract When the flow past a vehicle flying at high velocity becomes supersonic‚ shock waves form‚ caused either by a change in the slope of a surface‚ a downstream obstacle or a back pressure constraining the
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Drugs screen using Thin Layer Chromatography of basic illicit drugs Abstract The majority of evidence submitted to crime labs comes from drug-related crimes. Often‚ this evidence includes unidentified powders that may be illegal drugs. In order to prosecute individuals for possession of illegal substances‚ it is necessary for forensic scientists to positively identify any suspected drugs submitted to the laboratory. In addition‚ forensic toxicologists must determine the identity
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Among the first wave of Portuguese immigrants to America there remained a sort of stubborn pride in their cultural origins and traditions. In part because the communities around New Bedford and Fall River‚ and even out west in California‚ were considered “colonies” back home. Rather than resent the emigration of its people‚ the country—which needed emigration to relieve a growing overpopulation‚ especially on the islands of the Azores—took pride in what they saw as extending the Portuguese nation
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Experiment 3: The preparation of acetaminophen (paracetamol) with thin layer chromatography (TLC) to monitor the reaction. Abstract: This experiment is to demonstrate the preparation of paracetamol and its properties. Reflux and filtration of 4-aminophenol and acetic anhydride formed the crude sample. Further analysis of dry white crystals were used to give quantitative measurements and a percentage yield of 46% was obtained. The overall conclusion is that the acetic anhydride reacted with the
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dermal layer of skin and how each relates to the permanence of fingerprints. The outer layer is known as the epidermis‚ and the inner layer is known as the dermis. The bottom of the epidermis‚is adjacent to the dermis‚ is the generating layer of the epidermis and it is in this layer that new cells are formed. The skin is one of the largest organs in the body. The epidermis has many smaller layers. The dermal layer is the growth layer of skin and feeds the epidermis. The dermal layer has rows
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Thin Layer and Column Chromatography of Extracted Total Lipids of Chicken Egg Yolk Aegan Matthew V. Amican‚ Karen Gem B. Ares‚ Ruvie Ann A. Ballester‚ Mark Joseph S. Barcelona‚* Katherine Carmen Isabel G. Calleja‚ Christelle Venus F. Capuno‚ Group 1‚ 2DPH‚ University of Santo Tomas Abstract Lipids are one of the major constituents of foods‚ and are important in our diet for a number of reasons. They are a major source of energy and provide essential lipid nutrients. This experiment determined
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of Heat Content in the Upper 70m layer of the Arabian Sea Gopika.N Dept. of Physical Oceanography‚ School of Marine Sciences‚ Cochin University of Science and Technology‚ Kochi – 22‚ Kerala‚ India. Corresponding author E-mail ID:- gopika.n81@gmail.com ABSTRACT The upper ocean heat content is the most important parameter in view of ocean atmosphere interaction processes. In this study the temporal and spatial variation of heat content in the upper 70m layer of the Arabian Sea for a period
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¯rewall appliances have been developed to combat network layer threats [16‚ 17‚ 26] 1 such as TCP SYN‚ UDP‚ and ICMP Flood attacks. With an average of more than 5000 Denial of Service attacks per day [24] 1 and the association of criminal o®enses to these activities [25] 1 ‚ DDoS continues to be a signi¯cant problem. As DDoS detection and defense evolve [13] 1 ‚ attacks have migrated from the network level to the application layer. 1These numeric references are incorrect. Add web-based references
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China Multi-layer Ceramic Capacitor (MLCC) Industry Report‚ 2014-2017 Synopsis As the world’s major production base of consumer electronics‚ China has witnessed rapid growth in output of various products. This is particularly true of mobile phones‚ whose output rose from 560 million in 2008 to 1.46 billion in 2013‚ with a CAGR of 21.1%. Moreover‚ the total output of computers in different types increased from 137 million in 2008 to 352 million in 2013‚ at a CAGR of 20.8%. Currently‚ China has
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The origin of high hydraulic resistance for filter cakes of deformable particles: cell-bed deformation or surface-layer effect? M. Meireles‚ C. Molle‚ M.J. Clifton‚ P. Aimar Laboratoire de Génie Chimique (CNRS UMR 5503)‚ Université Paul Sabatier‚ 118 Route de Narbonne‚ 31062 Toulouse cedex‚ France Abstract This study reports a numerical approach for modeling the hydraulic resistance of a filter cake of deformable cells. First‚ a mechanical and osmotic model that describes the
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