Applied Surface Science 177 (2001) 152±157 Solution growth and characterization of amorphous selenium thin ®lms Heat transformation to nanocrystalline gray selenium thin ®lms Biljana Pejova*‚ Ivan Grozdanov Institute of Chemistry‚ Faculty of Natural Sciences and Mathematics‚ Sts. Cyril and Methodius University‚ PO Box 162‚ Arhimedova 5‚ 91000 Skopje‚ Macedonia Received 24 August 2000; accepted 31 January 2001 Abstract A novel solution growth methodology for fabrication of amorphous
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Experiment In this experiment a high vacuum sublimation was performed to determine the vapor pressure and finally the enthalpy of sublimation of Vanillin and o-Vanillin. AKnudsen cell with sample was weighed 10 times maybe just say weighed by difference‚ they don’t usually like it when you spell out the steps like that no way it was like 0.5 grams‚ check the lab again and at least 0.5 g of Vanillin or o-Vanillin was added to the cell and it was reweighed 10 times. This experiment depended heavily
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and chemical‚ is affected by the presence of water in the food. Indirect distillation (or drying) methods involve the measurement of the weight lost due to the evaporation of water. The open dish method is applicable to a wide range of foods. The vacuum oven method is particularly recommended for food when decomposition is likely to occur. The infrared balance method is used for rapid routine work. The influence of water activity on food quality and spoilage is increasingl being recognized as an
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Robotics Theory and Industrial Applications Second Edition Chapter 6 Answers 1) In a fluid power system the energy moves along the transmission path from the electrical motor to the pump. Fluid enters the pump at the inlet port and is forced through the outlet port. The fluid can undergo a multiplication of force activating on a load much larger than the point of origin. This fluid continues along the transmission path to the load. Basically‚ they use air or liquid‚ or a combination of both‚
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modules Mechanical Thermal Chemical Electrical Mechanism similar to iron pressing Blasting hot air on the clothes Reducing surface tension of water to enable faster drying Electrostatic attraction of water molecules Using vacuum (or low pressure) for suction of water Blowing a vortex of warm dry air Using deliquescent materials for absorption of water Rotation at higher rpm Using inward mechanical pressure on clothes in the form of plates Concept Screening
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Thomas Hill Unit 1 SCR consists of three layers of 1150 mm length Ceram catalyst with 45 modules per layer. Catatlyst cleaning by SCR Services‚ Inc. was performed in this SCR for four 12 hour shifts starting on 10/22/11with a six man crew per shift. A vacuum hose‚ an air lance‚ and a pneumatic vibrator were employed in the process. The vibrator was only used on the top two layers because access was not available to place the vibrator below the third level. Furthermore only limited cleaning was performed
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One of my chores as a kid was to vacuum the entire house. Our vacuum was old and heavy‚ and I thought it was about time for new one. In order to change the situation for the better‚ I watched Shark Vacuum Infomercials every Saturday (staying up late at night) in order to convince my parents to buy a new vacuum cleaner. I had to watch these boring infomercials for weeks until I was able to get my parents on board. And it
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generate additional electricity which can be fed into our current power systems‚ which will have the effect of reducing consumption from the national grid‚ saving you money in the process. This project is about fabrication of a dual powered outdoor vacuum cleaner‚ in which we will have a suction pump which will be run by a dc motor‚ the outlet of the pump will be connected to a bin which will hold the litter. The power to the dc motor will be provided by a battery‚ which will be charged by the solar
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When you chance the way you look at things‚ the things you look at change. The most fundamental and mayor decision you have to make in your life is this: Do I live in a friendly or A hostile universe? Is it the universe‚ where people want to hate each other‚ kill each other. Is that what you see? Because when you see the world that way‚ that is exactly what you create for yourself. The interesting thing is that this is not just a clever play of words: When you change the way you look at
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Name: _____________________________________ Block: _________ Date: _______________ Lab #14: Boyle’s Law Objective: To determine the relationship between the pressure and volume of a gas at constant temperature. Introduction: The relationship of pressure to volume for a gas in a rigid container was first described in 1662 by the Irishborn scientist Sir Robert Boyle (16271691)‚ and is known as Boyle’s Law. As long as the temperature of the gas remains constant
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