A BASIC STUDY ON SIMULTANEOUS HEATING WITH MICROWAVES AND ULTRASOUND USING COAXIAL‚ TYPE APPLICATOR Abstract- A new heating method for hyperthermia using microwave and ultrasound simultaneously is proposed‚ and temperature distributions are obtained by computer simulations. The results have shown that the simultaneous use of microwave and ultrasound can heat wider and deeper region than the sole use‚ and can reduce the input power of microwave and ultrasound. This implies that we can reduce
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12 Nov‚ 2010 Dear sir/madam‚ Central Heating System I am writing to complain about the absence of follow-up service supposedly to be provided by your agency a week ago. We are the tenants of a house rented from your agency. My address is House 1‚ Green Villa‚ 1 Greenway Road‚ Shatin. The central heating system has been out of order since I moved in last Monday on 3 Nov 2010. I called your agency to report the case on the same day and your agency promise to arrange for a repair service
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Fresh Water Cooling System Introduction Although there is an abundance of free sea water available‚ marine diesel engines do not use it directly to keep the hottest parts of the engine cool. This is because of the corrosion which would be caused in the cooling water spaces‚ and the salts which would be deposited on the cooling surfaces interfering with the heat flow. Instead‚ the water circulated around the engine is fresh water which is then itself cooled using sea water. This fresh water is
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THE HISTORY OF CENTRAL HEATING Brittany Science‚ 4th‚ Mr. Leetch‚ History of an Invention 2/8/13 The History of Central Heating Systems By Brittany Hicken I. Who invented the central heating system? A. We don’t know exactly who invented the first one B. Ancient Romans created the hypocaust C. Greeks created their own version of the hypocaust D. Sergius Orata (80 B.C.) E. Louis Savot- French (1600) F. Dalsme (1600) G. Dr. John Clarke (1652) H. Benjamin
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The purpose of this differential heating lab is to see which of the given materials would heat up faster or remain the same when heated by our heat lamp. in previous years‚ when this lab has been conducted for the most part‚ results were the same as our results. Our background knowledge consisted of knowing about which of the given materials were more flammable. Hypothesis: if differential heating occurs‚ then different materials will heat at different rates. I would assume that the leaves
Free Thermodynamics Temperature Heat
Cooling Drinks 1) What is the specific latent heat of fusion of water? Specific latent heat of fusion is the amount of heat absorbed or released by a substance when changing states. This could be boiling or melting. Latent heat of fusion is the amount of energy needed to melt a substance‚ while latent heat of vaporisation is the amount of energy needed to boil a substance. The specific latent heat of fusion of water is 334 j/g In the graph‚ you can see that as the temperature increases more
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MECH 8250 – Building Systems Module 1 - Heating Load Calculations Module 1 Heating Load Calculations The amount of heat is required for the building heating system to maintain a balance of the building heat loss. The amount of heat and moisture are gained from the building internal and external heat sources that is required to be removed by the building cooling system. Both heating and cooling loads form the basis in designing the HVAC systems for the building and occupied spaces to achieve both
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COOLING TECHNIQUES IN TRANSMITTER Introduction In modern A.M. transmitters power valves are used in the PA and modulator stages‚ which are condensed vapour cooled ceramic tetrodes. In the old generation transmittes‚ triodes are used in the PA‚ modulator and exciter stages. Both the tetrodes and triodes tubes are capable of being operated at high voltages (11 kV DC) and large anode current of the order of 50 Amps. They also draw large filament current of about 620 Anps at 24 volt CQK-350
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Energy Efficient Design through Passive Cooling Techniques for Commercial Buildings in San Jose Del Monte‚ Bulacan Abstract There has been an increasing demand in energy consumption of structures especially air-conditioning system and there is a need/solution on how to minimize/reduce the consumption of energy. In the recent years we witnessed and experiencing energy crisis‚ especially during summer seasons because of demand usage of air-conditioning systems. With the continuous increasing demand
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This is my project on Austin Carlile.It was to show how he inspires me‚ etc and this is my visual part of it.This is the speech i had to present to the class:“You have many options in life‚ Never make giving up one of them.” – Austin Robert Carlile. This man is an inspiration to millions. He has saved and changed thousands of lives‚ And I am among them. To any of mice and men fan‚ the ampersand is more than just a symbol.“The same kid‚ the first day of 10th grade‚ who stole my backpack‚ unzipped
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