Autoclaved aerated concrete (AAC‚ Aircrete) PrevNex 123 • cesta.01.kaushal • On May 2‚ 2013 • ATTR :. 8 mins. Comments/Notes :. Video is Nice In Nepal it is provided by united concrete. IPOS:. >AAC are very the future building materials >They are also available in Nepal Courtesy :. >http://www.understanding-cement.com/autoclaved-aerated-concrete.html >http://www.youtube.com/watch?v=empEMs-2zmA Edit Autoclaved aerated concrete is a versatile lightweight construction material
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This literature review will focus on the different studies conducted on laundry detergents. Laundry detergent is a common product that is purchased regularly by nearly every household in Singapore. With a large commercial market and many brands of choices‚ companies have developed their laundry detergent formulas to make their products more competitive in the market. It has been researched from consumer reviews that the stain-lifting power of detergents is the determining factor of whether
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This page intentionally left blank SEPARATION PROCESS PRINCIPLES Chemical and Biochemical Operations THIRD EDITION J. D. Seader Department of Chemical Engineering University of Utah Ernest J. Henley Department of Chemical Engineering University of Houston D. Keith Roper Ralph E. Martin Department of Chemical Engineering University of Arkansas John Wiley & Sons‚ Inc. Vice President and Executive Publisher: Don Fowley Acquisitions Editor: Jennifer Welter Developmental Editor:
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HPLC Determination of Aspartame in Diet Coke Name: xx Student Number: xxx Class: xxx Aim The aim of this experiment was to determine the concentration of aspartame in a sample of diet Coke® using HPLC as investigation tool. Introduction High Performance Liquid Chromatography (HPLC) is one of the most widely used analytical techniques of nonvolatile organic compounds. Chromatographic processes can be described
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ELECTRODEPOSITED NI-BASED NANOCOMPOSITES ELECTRODEPOSITION • Electroplating is often also called "electrodeposition“. • It’s a process using electrical current to reduce cations of a desired material from a solution and coat that material as a thin film onto a conductive substrate surface. • The overall process is also known as electrolysis. OBJECTIVE • To apply thin films of material to the surface of an object to change its external properties such as to increase corrosion protection
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The development of increased resistance to antibiotics is a global concern. According to WHO (2015)‚ antimicrobial resistance is an increasingly serious threat to global public health that requires action across all government sectors and society. Antibiotic resistance threatens the effective prevention and treatment of an ever-increasing range of infections caused by bacteria‚ thereby resulting to loss of the ability to treat common infections. The development of antibiotic resistance is a natural
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is because PAN’s contribution to iodine capture is very low‚ so it makes sense that if there is more PAN‚ you will have a more stable structure but less effective iodine capture. They also discovered that less time was needed to achieve maximum adsorption with SnS50+I than the SnSg+I and SnSp+I. The reason for this was not discovered. Although another worthy note from this experiment is that originally the PAN was dissolved in DMSO before it was added to the chalcogel. This actually improved the
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CHEMISTRY SAMPLE PAPER - I CLASS - XII Time : Three Hours Max. Marks : 70 General Instructions 1. All questions are compulsory. 2. Question nos. 1 to 8 are very short answer questions and carry 1 mark each. 3. Question nos. 9 to 18 are short answer questions and carry 2 marks each. 4. Question nos. 19 to 27 are also short answer questions and carry 3 marks each 5. Question nos. 28 to 30 are long answer questions and carry 5 marks each 6. Use log tables if necessary‚ use of calculators is
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method of separating mixtures of two or more compounds. Two phases are important in this method; one that is stationary and one that is moving. Chromatography works on the principle that different compounds will have different solubilities and adsorption to the two different phases between which are to be partitioned. Thin Layer Chromatography (TLC) is a solid-liquid technique. The mixture is observed when it is in two different phase; a solid (stationary phase) and a liquid (moving phase). Thin
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WHAT IS ARSENIC Arsenic is a chemical element with symbol As and atomic number 33. Arsenic occurs in many minerals‚ usually in conjunction with sulfur and metals‚ and also as a pure elemental crystal. The main use of metallic arsenic is for strengthening alloys of copper and especially lead (for example‚ in car batteries). Arsenic is a common n-type dopant in semiconductor electronic devices‚ and the optoelectronic compound gallium arsenide is the most common semiconductor in use after doped silicon
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