ABSTRACT COOKSON‚ EDWARD JAMES. Development of the Metal Foam Electrical Resistance Heater. (Under the Direction of Dr. Albert Shih.) This thesis presents a novel concept using a radial heating element made from porous Fe-Cr-Al metal foam in an air heater. Electrical resistance heating has been used extensively to convert the electrical energy into thermal energy. An analytic heat transfer model is first developed to estimate dimensions of the heating element. Four prototype Fe-Cr-Al metal
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Leading Change Introduction By definition‚ change means transformation‚ modification or variation. Change entails the introduction of new ideas and or ways of doing things in the organization. Mathis and Jackson argue that planning and the implementation of the same previous plans‚ is also a crucial ingredient to leading change (36; ch. 2). Change is also a shift to a new game with a new set of rules - an alteration of the status quo in an organization that impacts the work environment of
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Air resistance is an opposing force often known as drag force. Air resistance acts in the opposite direction to snow skier’s velocity and can either harm or enhance performance of the athlete. The flow of air around an object causes the unavoidable effect of drag and is influenced by the size‚ shape‚ surface‚ and overall speed of an object (John Polson‚ 2013). Air resistance is present in snow skiers and can inhibit their performance in a race greatly if the proper precautions and positions are
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__________________________ Wire Resistance and Ohm’s Law Go to http://phet.colorado.edu/simulations/sims.php?sim=Ohms_Law and click on Run Now. Wire Resistance and Ohm’s Law Procedure Part I Wire Resistance: open the PhET Simulation Electricity‚ Magnets‚ and Circuits ( Resistance in a Wire. As wire length (cm) increases‚ the resistance (Ω) _increases________ As wire area (cm2) increases‚ the resistance (Ω) _decreases_________ As wire resistivity (Ωcm) increases‚ the resistance (Ω) _increases____
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Task To investigate how the resistance of a wire is affected by the length of the wire. Theory What is resistance? Resistance is a force which opposes the flow of an electric current around a circuit so that energy is required to push the charged particles around the circuit. The circuit itself can resist the flow of particles if the wires are either very thin or very long. e.g. The filament across an electric light bulb. How is it measured? The resistance of a length of wire is calculated
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Gang Resistance Education and Training Gang Resistance Education and Training (G.R.E.A.T) is a national program that educates elementary and middle school children how to avoid becoming a gang member. The program is instructed by police officers and is part classroom instruction and other learning activities. “The goal of the GREAT program is to teach youth how to set goals for themselves‚ how to resist peer pressure‚ how to resolve conflicts‚ and how gangs can affect the quality of their lives
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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 phenomenon
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that has never stopped flowing. From cave paintings to online articles‚ humankind has never lost the basic desire to create art. However‚ as long as art has been created‚ there has also been an opposing side ready to firmly challenge the work. Author Kurt Vonnegut is an artist who spent the majority of his career battling limitations on his creative expression‚ especially in his most popular and most notorious work: Slaughterhouse-Five. The story is partially based on Vonnegut’s own life‚ telling the
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2011) Upon this discovery‚ production and distribution of antibiotic drugs increased and within five years antibiotic resistance was distinguished. Not only do antibiotics help save lives but incorrect use of antibiotics exposes the microbes to the drug where
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Sophia Tiongko CAL 103 D4 12 October 2023 Professor Ogden Essay 2 Final Draft The Perils of Passive Resistance When a body of people comes into power‚ there is always a risk that those who compose that body will abuse their power for personal gain and at the expense of the people they govern. Consequently‚ victims of this ugly facet of human nature are left to decide between two main methods of response: violent retaliation or amicable appeals to the government. Aggression is at times viewed as a
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