of electricity at a fundamental level. Ans: Electricity is the movement of electrons. As long as electrons in an atom are balance and revolve precisely in orbit around their sun or atom nucleus there is no electron flow or electric current in a wire. These atoms are the smallest particle into which an element can be divided without losing its property. A single atom consists of three basic components: a Proton‚ a Neutron and an Electron. An atom is similar to a small solar system‚ so is the nucleus
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Francho Garza Güell 27/12/2012 PRODUCT DESIGN AND MANUFACTURING PROCESS INDIVIDUAL EVALUATION 1. EDM (Electrical discharges machine ) and WEDM ( Wire Electrical discharges machine). • Fundamentals of process; Principles of EDM Electrical Discharge Machining (EDM) is a controlled metal-removal process that is used to remove metal by means of electric spark erosion. In this process an electric spark is used as the cutting tool to cut (erode) the workpiece to produce the finished part to the
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the oscillation amplitude is small. In this experiment‚ the lab requires an audio amplifier capable of driving a heavy-duty 8-ohm loudspeaker. This amplifier is used to produce standing waves in wires of various linear densities. The required tension is supplied by hanging appropriate masses from the wires. After a string is attached to the amplifier and hung on a weight at the opposite end‚ the lab is ready to begin. First‚ start of by using a fixed length of string and give it an applied tension
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different kind of wire network if needed‚ and can’t be set up by the conventional process. Setting up a hybrid topology has some good and bad perspectives. The good things are effectiveness‚ flexibility‚ it is reliable and scalable. Some of the bad things about the hybrid topology set up are‚ expensive infrastructure‚ and hub. Also it is a very complex way to set up a network. Now I will discuss some advantages and disadvantages of Hybrid Topologies. With a network you can set up with wires or wireless
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and make sure the surface is clean and not wet 2. Wrap the nichrome wire around the test-tube to form a coil 3. Use the multimeter to measure the resistance of the light bulb 4. Connect the power pack to the power point but do not switch it on 5. Set up a series circuit with the ammeter‚ switch‚ nichrome wire resistor (Figure 1)‚ light bulb (Figure 2) connected in a series and connect the voltmeter in parallel with the nichrome wire or light bulb resistor. Use two alligator clips as a switch 6. To
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(August 29‚ 1831[6])‚ he wrapped two wires around opposite sides of an iron ring or "torus" (an arrangement similar to a modern toroidal transformer). Based on his assessment of recently discovered properties of electromagnets‚ he expected that when current started to flow in one wire‚ a sort of wave would travel through the ring and cause some electrical effect on the opposite side. He plugged one wire into agalvanometer‚ and watched it as he connected the other wire to a battery. Indeed‚ he saw a transient
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any of the reactions above are observed it is known that a reaction has taken place. (1) A + B →AB (2) A + BC→AC + B (3) AB + CD→AD + CB (4) Hydrocarbon + O2→CO2 + H2O Experimental In this synthesis reaction‚ a small piece of copper wire was obtained. The copper wire was held with crucible tongs over a bunsen burner and the reaction 2Cu + O2→2CuO was observed. In the second synthesis reaction‚ a small piece of magnesium ribbon was held over a bunsen burner with crucible tongs. After the reaction
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pair of clips at the other‚ used for temporarily connecting two pieces of equipment or signal paths. 4. Connectors: A device for holding two parts of an electrical conductor in contact. 5. Conduit: A tube or duct for enclosing electric wires or cable. 6. Racks: A computer rack (commonly called a rack) is a metal frame used to hold various hardware devices such as servers‚ hard disk drives‚ modems and other electronic equipment. Some may refer to a rack as "LAN or network furniture"
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Engineering Structures 28 (2006) 1266–1274 www.elsevier.com/locate/engstruct Applications of shape memory alloys in civil structures G. Song a‚∗ ‚ N. Ma a ‚ H.-N. Li b a Department of Mechanical Engineering‚ University of Houston‚ Houston‚ TX 77204‚ USA b School of Civil and Hydraulic Engineering‚ Dalian University of Technology‚ Dalian‚ 116024‚ China Received 24 June 2004; received in revised form 19 December 2005; accepted 26 December 2005 Available online 17 April 2006 Abstract Shape
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punctured with an 18-guage needle. A guide wire was advanced through the needle. Sterile technique was used throughout the entire procedure. Fluoroscopic guidance was employed for all internal manipulations. Afterward‚ about a 5-cm skin-entry incision site was made‚ and a pocket was made with blunt dissection to the pectoralis major fossa using Metzenbaum scissors and Bovie for proper hemostasis. Afterward‚ a 10 French introducer was advanced over the wire. Trocar was removed. A permanent ventricular
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