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Investigate a product that you have NO IDEA HOW IT WORKS, and delineate the history of its development (who, when, where, why) , society need it served (what), describe in DETAIL the products operation and works (how), and how the design process covers th
3 pages (750 words)
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...metallic conductor act as heat reservoir and transfers heat to the soldering tip and it also has a thermal sensor. Soldering iron bits are made up of copper core plated with iron and coated with heat resisting elements. Soldering iron is of different types and each type has its own purpose. Soldering iron come in both high and low wattage version. They are also set... Soldering Iron Soldering iron is a tool used in households and professionals on a usual basis. The main purpose of this tool is to join two items together by creating a solid bond between the two objects. The type of iron changes according to the purpose and the projects for which it is used. Some are powered electrically, while other...
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Chemistry (Metallic glasses)
2 pages (500 words)
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...Metallic Glasses In the pre-industrial era, 11 metals were extensively used; Au, Ag, Cu, Fe and Hg were some of the common elements used. The progress of refinement and metallurgical techniques have contributed to the increase in utilized metals to about 75. Metallic materials in their bulk form are limited to their crystalline structure due to the principles of phase transformation and solidification (Inoue, Wang and Zhang, 1). The suppression of the transformation of the super cooled liquid to crystalline phase due to the addition of novel alloy components alloys for the production of glass (disordered) metallic alloys with unique and superior characteristics. In particular... ...
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Semi-conductor Devices and Circuits
18 pages (5000 words)
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...conductor Devices and Circuits There are two types of rectification, the half-wave and full-wave rectification. I.1 Half-wave rectification The simplest rectification is the half-wave rectifier circuit with a single-phase diode. This circuit has only one diode, a resistor load and a capacitor. The diode is fed to the secondary winding of the transformer and it conducts when the secondary transformer produces the positive half-cycle, and stops conducting when the secondary produces the negative half cycle. (Lee & Chow 2011, p. 150) Figure 1 Schematic diagram of half-wave rectification In this diagram, we can see that the current iL passes from the diode then to the...
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LAB 2
1 pages (250 words)
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...conductor made of a wire or a metallic foil that is in a grid-like pattern. In particular, the grid-like pattern maximizes the amount of strain in the parallel direction. The experiment uses a conductor (carrier) that is of thin strips of metallic film placed on a non-conducting substrate material. The wire is to the specimen and facilitates the transfer of the strain from the specimen to the strain gage. Accordingly, the transfer makes a linear change in the electrical resistance. Precisely, the electrical resistance of a conducting wire fluctuates when the length of the conductor changes... Electrical Resistance Strain Gages A strain is the motion of particle displacement when a material experiences ...
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Harriet Tubman: The Conductor Of Underground Railroad
6 pages (1500 words)
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...Conductor Of Underground Railroad History Paper On The Life Of Harriet Tubman Harriet Tubman is often referred to as “The conductor of the Underground Railroad” due to her contributions in helping people to escape from slavery. The Underground Railroad is an organization which supported slaves from escaping to states where slavery had been abolished. The Underground Railroad constituted a network consisting or railroad and also various sea routes which led to free states where the slaves could live their life with freedom. The Underground Railroad consisted of stations in the form of houses or barns where the fugitives could hide out. However, they needed... ...
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Structure and Bonding of 5 different materials (Chemistry)
4 pages (1000 words)
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...conductor of electricity. It can dissolve in water and other solvents owing to solute solvent interactions. Copper is metallic in nature, which is widely used in electrical wires owing it its high conductivity. It is hard yet malleable and ductile, has... ? Physical properties entail the melting point, boiling point, hardness, electrical conductivity and the ease of solubility in polar and non-polar solvents. This report discusses five materials, the bonding present between their molecules and its effect on the physical properties. Silicon dioxide is abundantly present in the form of sand. It is hard i.e. very difficult to break into smaller parts and is resistant to abrasion. It is a non conductor of...
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Chemistry chemistry
2 pages (500 words)
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...metal ions in the electron sea results in the metallic bond. These forces contribute to the high melting points since they require a lot of energy to break. The delocalized electrons make Magnesium a good conductor of electricity since they can move about freely in the metallic lattice. (Frederick, 1979, P.98) Malleability is the ease with which a metal can be hammered, forged, pressed, or rolled into thin sheets. Malleability shows how mobile particles involved in metallic bonding can be pushed... CHEMISTRY QUESTIONS Presented Intramolecular forces operate within the molecules or fundamental units of a substance. This would include the attraction between positive and negative ions in a crystal of an...
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Discussing the benefits and costs of such a metallic monetary system for an aspiring new country
2 pages (500 words)
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...Metallic Monetary System for a New Country Every economy needs a medium of exchange and a measure of value in order to facilitate transactions within that economy. Ever since the extinction of butter trade, different exchange systems like bank notes and metallic coins have been in use for years now (Poor, 119). The use of metallic monetary system in a new country has its advantages and disadvantages. Among the advantages include its being durable, more portable and promote trade. For example, the disadvantages include valuable metals limited supply, metallic coins are heavy to carry, and their initial production is expensive. In as much as metallic money has its advantages... College: Pros and Cons of...
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Turbine-Engine Ignition and Starter Systems
1 pages (250 words)
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...conductor of electric power from the source (ignition exciter... ) to the ignition plug. It is also interesting on how the ignition lead is designed. The lead wire is surrounded by a metallic braid that protects it from electromagnetic interference. It also serves as a ground return for the entire system. Imperatively, the entire ignition process ends when the energy received by the ignition plug is transformed to an electrical spark. The spark ignites the fuel and air mixture leading to combustion. According to the site, the ignition plugs requires to be maintained or changed regularly. In this case, the ignition plug requires to be inspected minimally at regular intervals....
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Belioz' Symphonie Fantastique performed by The Houston Syphony, Conductor- Andrs Orozco-Estrada
6 pages (1500 words)
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...conductor in the centre, raised on a podium. The cello and viola section filled up the other side of the stage facing the left wing and the conductor. The brass section occupied the farther end of the stage with instruments flutes (doubling piccolos), oboes (doubling cor anglais), clarinets (doubling E flat clarinets) and bassoons. The front row of the brass section consisted of horns, cornets, trumpets, trombones, tubas and ophicleides. The percussion sections consisted of timpani, cymbals, suspended cymbal, tenor drum, bass drum, bells, in scale C and G. The percussion section... ?Time and Place of the performance Famous French composer’s Symphonie Fantastique was performed in Jones Hall on Friday...
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Metallic and Megadeth
7 pages (1750 words)
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...metal is a genre of rock music that was formerly capitalized in the United Kingdom and United States. It is characterized by intensity, loud music and aggressiveness in terms of beats and vocal singing. The musical instruments used mostly comprise of electric guitars and the lead guitarist mostly implements an aggressive singing that can sometimes be related to screaming (Bowar, “Heavy Metal Artists, Styles and Genres”). Metallica is an American band that was formed in 1981 by Ulrich Lars. By then its members included Cliff Burton, Kirk Hammett, Jason Newsted and James Hetfield. Cliff Burton was not around for long as in 1986 he passed on in a bus crash on the way... Metallica vs. Megadeth Heavy metal...
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Measuring the electrical resistivity of a wire
6 pages (1500 words)
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...conductor in terms of its capability in conducting current. Conductivity is measured in units of ohm-meters (Ωm-1). Most metals are very good electricity conductors (Bird, 2013). Health and Safety Handling electric apparatus requires certain precautions. Electricity is quite dangerous if the following precautions are not properly followed. Avoid touching any section of the electric circuit connection with wet hands or uninsulated metallic objects. Never touch a live wire. Make sure the capacitor and the voltmeter are functional before connecting the circuit. Make sure the circuit switch is turned off before... Measuring the Electrical Resistivity of a Wire Resistivity of a wire Introduction The primary...
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PENTACENE BASED ORGANIC MIS STRUCTURES: STRUCTURAL ANALYSIS AND ELECTRICAL PROPERTIES
10 pages (2500 words)
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...conductors but also lighter in weight than the inorganic electric conducting materials which are the traditional metals. In this paper, we will specifically discuss the molecular structure and the electronic properties of the organic metal-insulator-semi-conductor (MIS) structures which are based on the organic material called, Pentacene. Particularly, the efficiency of the pentacene field effect transistors (FET) due to its structural attributes have made it practicable to device applications which are mechanically flexible and in-expensive in the overall cost, with large space requiring for coverage [2]. Although, irrespective of the efficiency and great potential... Introduction to Pentacene Based...
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SCI P1
3 pages (750 words)
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...metallic luster. Its oxide is silica, or common quartz, and in this form, or as silicates, it is, next to oxygen, the most abundant element of the earths crust. Silicon is characteristically the element of the mineral kingdom, as carbon is of the organic world. Symbol Si. Atomic weight 28. Called also silicium” While Semi conductor is “Crystalline element (such as germanium or silicon) or compound (such as gallium arsenide... SCI P1 Introduction According to Brainy , the meaning of Silicon is, “A nonmetallic element analogous to carbon. It always occurs combined in nature, and is artificially obtained in the Free State, usually as a dark brown amorphous powder, or as a dark crystalline substance with a...
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Answering the paragraph
6 pages (1500 words)
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...conductor shares some properties with metal as well as electrical insulator which is a key component of a solar cell. Sunlight contains photons and when these hit the silicon atoms in the solar cell they transfer to loose electrons. The electric imbalance created in the cell directs the electrons to flow in a same direction which produces the current. The internal organization of the silicon is responsible for this electrical imbalance. As silicon is a semi conductor it maintains the electrical imbalance in the cell. Basically there are three steps in the working... ?The Material Science Question What is the progression of materials used for aircraft structures? Ultimately, what drives the changes in the ...
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SCI P1 Paper
3 pages (750 words)
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...metallic luster. Its oxide is silica, or common quartz, and in this form, or as silicates, it is, next to oxygen, the most abundant element of the earth's crust. Silicon is characteristically the element of the mineral kingdom, as carbon is of the organic world. Symbol Si. Atomic weight 28. Called also silicium” While Semi conductor is “Crystalline element (such as germanium or silicon) or compound (such as gallium... SCI P1 Introduction According to Brainy , the meaning of Silicon is, “A nonmetallic element analogous to carbon. It always occurs combined in nature, and is artificially obtained in the Free State, usually as a dark brown amorphous powder, or as a dark crystalline substance with a metallic ...
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GROUNDING & BONDING
2 pages (500 words)
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...metallic non electrical parts together in order to establish a continuous electric path across them. Static sparking cannot take place between objects that are the same potential. It is done with the help of copper wire to establish connection between... ? BONDING AND GROUNDING Definition The chances of static build-up to spark explosions, costly fires, property damage and injury to workers are a constant danger. Any industrial process will generate static electricity. The purpose of bonding and grounding is to reduce stray voltage problems caused by electrical faults. A Bonding system connects various pieces of conductive equip­ment together to keep them at the same potential. In bonding we join all...
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Material Selection Case Study
11 pages (2750 words)
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...metal on the earth and the most widely used. It is estimated that 95 percent of all metals produced in the world has its roots from iron. Structurally, iron is more malleable than most metallic substances. It is therefore easily be cast into several shapes when subjected to high temperatures. It also has good ductile properties, which makes it a good conductor of energy. In addition, it has exceptional magnetic properties. Two essential characteristics that make iron stand out to golf manufacturers as an ideal material for golf club making are (i) it is relatively cheap and (ii... MATERIAL SELCTION CASE STUDY - GOLF CLUBS/STICKS 0 Introduction Golf is a sport with a worldwide following. It is played by...
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Different subject
8 pages (2000 words)
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...conductor in a field influenced by magnet. This it is a simple principle that leads to major achievements in the spectrum of development and growth of industries. It is the principle that Faraday succeeded to prove that a rotary mechanical motion can induce or generate electricity. Devices that produce electricity with the help of mechanical motion are termed as electric generators. The mechanical motion can be assisted in many ways it can be pressurized water moving... ?Generators CONTENTS Number Topic Pages Introduction 2 Mechanism and Principle Of Working 2-3 3 Types Of Generators 4 4 Cogeneration 5 5 Generator Criterion of Selection 6 Bibliography 7 1. Introduction The consumption of electricity is...
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Material Science: Road Tires
4 pages (1000 words)
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...metallic drum, then cured and heat under pressure. The various components used in the manufacture of road tires include; rubber, black carbon, and chemicals and a steel wire combined and cured under high pressure. Natural rubber is obtained from rubber tree is used mainly in the manufacture of the rubber part that is exposed... Material Science: Road Tires The road tire is the outer fitting of the wheel; the part that comes into contact withthe ground in motor vehicles and similar machines. In vehicles, bicycles, airplanes and similar machines, the road tires essentially bear the total load of the machine. The tires need to be able to change shape as they get filled with air or water and regain their...
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Creative short story on time travel
8 pages (2000 words)
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...metallic characteristics. Its nature allows the transmission of electricity at its maximum. The pyramid contained lined shafts made of granite. Granite is a radioactive substance, which permits ionization of air contained in the shafts. This made granite a good conductor. The same way the conducting materials operate in a cable is the same way the electricity inside the pyramid would operate after completion of construction. However, for electricity to be generated a source of energy is needed. The area where the pyramid is situated contains many underground water channels. The area where the pyramid is situated is the Giza plateau. The space within the pyramids and the layer... Baghdad...
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Control and monitoring on smart grid
5 pages (1250 words)
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...conductor’s resistive losses. Cp, parallel capacitance, is the capacitive effect equivalent between the coil turns. Rp, parallel resistance, is a cumulative sum of the core material’s attribute losses. Some parasitics affect the overall value of the inductor as compared to others. This depends on the coil construction, inductor geometry, wire gauge, and the core’s characteristics. Open flux inductors have sensitivity to nearby metallic materials as they interfere with the magnetic field. Toroidal inductors are less influenced by close external conductors since they keep the flux beneath the core (National Instruments, 1). Figure 3. (National Instruments... Control and Monitoring on Smart Grid...
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There are a number of ways that metallic materials can be strengthened. Fundamentally, all of these strengthening mechanisms are considered in terms of the retardation of dislocation movement. Describe how precipitation hardening is carried out in pract
7 pages (1750 words)
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...Metallic Materials Precipitation Hardening of Metallic Materials Introduction Precipitation hardening is currently one of the most widely used techniques for strengthening metal alloys. Generally, it is widely believed that the hardness and strength associated with certain metal alloys could be enhanced by forming an additional phase of adversely small and evenly dispersed particles to the initial phase matrix1. Attaining this requires correct heat treatment. This process is referred to as precipitation hardening and it happens it takes place in three unique stages: solution treatment which is intended to reduce segregation within the alloy, quenching in order to come... Precipitation Hardening of...
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How to use a Wood Material in Computer Hard Disc Drives
8 pages (2000 words)
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...metallic materials has been effective to some extent but has also been faced by various challenges, such as power loss due to over heating (Chin, 2002). Another challenge of using metallic materials is that the mounting materials used are magnetic in nature and this may make them to decompose leaving the inner components of the disk exposed. Aluminum is also expensive and this increases the cost of manufacturing hard disks, as well as their selling price. This challenges call for use of a material that will eliminate any setbacks of the material currently used for the manufacture of hard disks. In the past, wood has been used in the manufacture... ? How to use a Wood Material in Computer Hard Disk Drives ...
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What is superconductivity and what practical applications does it have (radiotelescopes, MagLevs, etc)
5 pages (1250 words)
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...metals of the periodic table. Type I superconductors obey the BSC theory and only experience superconductivity below the critical temperature (Tc). The exact temperature for which each of these superconductor materials exhibit this zero electric resistance phenomenon is referred to as critical temperature (Tc) and it varies from one material to the other. To achieve the critical temperature for any of these materials in order to acquire the near zero or zero electrical resistance, cooling is necessitated by the use of nitrogen or helium in their liquid forms. Perhaps, to explain the perfect normal conducting properties of the best room temperature conductors, the lattice... Superconductivity and...
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College Physics
4 pages (1000 words)
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...conductor. 7. Measuring humidity using electrostatics: 8. The metal can be painted using the process of electrolysis... Academia test Satyaprakash dixit Satyaprakash dixit 11th August 11, 2007 Topic: College physics Chapter 18: 1. The phenomenon of development of opposite charges at the two ends of an uncharged conductor when another charged body is placed near it is called charging by induction. Consider an insulated uncharged conductor xy. Place an insulated charged body p near it as shown in the above figure. Suppose the body p is positively charged. The free elec...
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Alternating Current and Direct Current Generators
5 pages (1250 words)
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...metallic ring (Keljik 2013). These generators are used in applications involving minimal power. 2.2 Rotating Field Generator Keljik (2013) discussion on the rotating field type generators reveal that voltage is induced into stationary conductors... Alternating Current and Direct Current Generators Number) December 17, (Faculty) Alternating Current and Direct Current Generators 1.0 Introduction Electricity can either be generated as direct current (DC) or alternating current (AC). Given that electricity is basically the movement of electrons through a conductor such as a wire, the difference between direct current and alternating current is obtained from the direction of flow of electricity (current)...
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Literature Review on Engineering
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...conductor that is metallic and has the shape of a curve which is closed either circular or squared and has a design that forms terminals within the curve. The axial loop has a great conduction of heat and the current distribution is assumed generally uniform through the wire circuit due to the uniformity in the resistivity of the material wires used in the making of the wire loops. In the receiving loop which is developed at the developed voltage... ? Literature Review Insert Literature Review Power or energy can be transferred using various wireless means which have been known and researched on over the years and which are known as far –field means of energy transfers. The transferring of energy using...
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Gold
7 pages (1750 words)
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...metal, thus, it many functional uses in manufacturing industries and natural environments. It has rust resistance i.e. does not react with oxygen. It is a good conductor of electricity being able to convey a very tiny electrical current in temperature ranging from -550 to +2000. 1 This metal is among the most ductile metals, thus, it allows to be molded into very small threads or wires without breaking. Furthermore, gold is malleable. This makes it possible to be shaped... ? June 2, GOLD MATERIAL: EXTRACTION, STRUCTURE, PROPERTIES AND ITS IMPORTANT This paper gives a general overview of gold material, its physical and chemical structures and properties, the general process used in extraction of the...
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Gold
7 pages (1750 words)
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...metal, thus, it many functional uses in manufacturing industries and natural environments. It has rust resistance i.e. does not react with oxygen. It is a good conductor of electricity being able to convey a very tiny electrical current in temperature ranging from -550 to +2000. 1 This metal is among the most ductile metals, thus, it allows to be molded into very small threads or wires without breaking. Furthermore, gold is malleable. This makes it possible... September 8, GOLD MATERIAL: EXTRACTION, STRUCTURE, PROPERTIES AND ITS IMPORTANT This paper gives a general overview of gold material, its physical and chemical structures and properties, the general process used in extraction of the mineral (gold) ...
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High density Plasma CVD
10 pages (2500 words)
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...metallic as well as non-metallic material of any kind. These include silicon, carbon, nitrites, carbides, oxides and also many others. In semi-conductor world, CVT is majorly used in the fabrication process of the semiconductor devices and to the exposure of the amorphous SiO2, Silicon Germanium and tungsten etc. The CVD is also the cause of the production of synthetic diamonds. The major importance of CVD in the industry lies in the fact that this process uses the gases as reactants. So the gas’s properties give much support to the reaction procedures. CVD is far most the best and reliable deposition phenomenon/process present. Its advantages include Versatile in nature... ?HIGH DENSITY PLASMA CVD I...
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The Life Cycle of the Photon
5 pages (1250 words)
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...conductor, the reflected wave phase is retained, else if the interface is in between two dielectrics then the phase can either be inverted or retained. It depends on the refractive... Topic: The Life Cycle Of The Photon PAPER A term that is used to define electromagnetic band from radio waves to IR (Infrared) radiation, visible light, x-rays and gamma rays is known as photons. Basically the behavior of all the photons is similar as they travel at similar velocity in the vacuum with variable energies. The magnitude of these energies varies over ten orders from very low to very high on radio waves and gamma ray energies respectively emitted from radioactive atoms’ nuclei. The photon is the basic particle,...
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Jacobs Masterworks
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...metallic nature of the performances and the loudness. The intermission was classical enough that I found it catchier than any other classical performance I have attended so far. It was not hard for me to find fun, neither did the team have to do too much to catch my attention and get me entertained. However, through the orchestrations, I was expectant of the intermission moment, when Morton Gould would take over and make my night. Little did he... Jacob’s Masterworks The weekend of Friday, May 17, 2013 to Sunday, May 19, 2013 saw the presentation of Jacobs Masterworks in the Copley Symphony Hall, San Diego. Although the program was expected to run for the whole weekend, there was no difference in the pe...
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Corrosion Damage Assessment Using Infrared Thermography: A Historical Overview
5 pages (1250 words)
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...metallic aircraft structures really only began to be appreciated in the 1970s when it became easily apparent that many transport aircraft would be flown well beyond their original design lives. "These aircraft have been designed in such a way that the majority of defects should be found by inspection while the aircraft is still strong enough to carry normal flight loads. At the time, the interactive aspects of fatigue failure were also recognized and manufacturers were required to address multiple crack initiation, redistribution of loading following a fatigue failure, and concurrent failure of multiple load path... Corrosion Damage Assessment Using Infrared Thermography: A Historical Overview The...
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Space Elevator
3 pages (750 words)
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...conductor or metallic properties and this attributes to the immense tensile strength that these tubes exhibit... Space Elevator - Your divan in the Unknown!! Man, by nature, is an innovator. He has continuously tested the horizon of the thought and imagination resulting in a breathtaking array of inventions and discoveries. However, the space has remained a challenge - apart from sporadic missions and a few lunar expeditions; man has not been able to tame the unknown here. The radical concept of the space elevator seems to overcome that - it combines the dual quest of scientific expedition and the search for a viable foreign zone, capable of habitat, with physical proximity and connectivity to earth. The ...
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Review Paper
7 pages (1750 words)
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...metals and the InGaAs which results to a large dark current (Wohlmuth, Seo, Fay, Caneau, &. Adesida,1). In the fabrication... Journal reviews A High-Speed ITO–InAlAs–InGaAs Schottky Barrier Photo detector. By:W. A. Wohlmuth, C. Caneau, J.-W. Seo, P. Fay and I. Adesida The paper aimed at designing, fabricating and characterizing a high speed and high sensitivity vertical indium-tin-oxide-InAIAs-InGaAs Schottky barrier photo-detector. There is a high need for photo--detectors in fields that require high speed fiber optic communication receivers like optical data links and sampling systems. The vertical schottky-barrier is a good candidate for the due to its low height that is formed between most metals an...
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Manufacturing Materials and Technologies
6 pages (1500 words)
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...metals which are highly corrosive and weakens the strength of the material. Theses polymers are good conductor of electricity (Selzer and Friedrich 1997: 595). Carbon fibre reinforced polymer is very light material yet strong enough for any purpose. It is 10 times stronger than mild steel and had a ultimate tensile strength of 3000 - 4000MPa, structural steel has ultimate tensile strength of about 400-550 MPa, mild steel has... Manufacturing Materials and technologies Manufacturing Materials and technologies Carbon fibre reinforced polymers is a composite material, which include carbon fibres that given strength to the material and a binding agent that is mostly a resin. Carbon fibre reinforced polymers...
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FILM AND TECHNIQUE
8 pages (2000 words)
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...metallic about the voice, suitable for the emotionless personality to which it belongs. Once Alex and his droogs enter the house they have their normal accompaniment of cackling, joyful laughter and indistinguishable words followed by the exaggerated noise of Alex’s kicking the man in the face. There is no music at this point, Kubrick... Sound in A Clockwork Orange Sound is an element of film technique which is often overlooked within what is basically seen as a visual art form. But sound is an integral part of film in general, and within A Clockwork Orange it is particularly important. Kubrick uses sound to act as an ironic commentary upon the nightmarish future that he envisions within this...
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GMR (Giant magneto-Resistance)
9 pages (2250 words)
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...conductor when subjected to an external magnetic field by virtue of the alignment of its spin electrons. In materials of large thickness the electrons can travel for long distances without any change of direction since intermolecular spaces... Giant Magneto-Resistance 479811) Introduction The GMR or Giant Magneto Resistance was a pioneering effort made in the field of material science. The efforts were subsequently rewarded as Albert Fert and Peter Grunberg were awarded the Nobel Prize for Physics in 2007 for their contributions. (The Royal Swedish Academy of Sciences, 2007) Working of a GMR The GMR effect can be explained as a simple phenomenon which causes the change of electrical resistance of a conduc...
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How to Use a Wood Material in Computer Hard Disk Drives
8 pages (2000 words)
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...metallic materials has been effective, but at the same time been faced by various challenges. These incorporate power loss, reactive nature of the mounting... ? How to use a Wood Material in Computer Hard Disk Drives Number Report on Howto use a Wood Material in Computer Hard Disk Drives. Introduction Hard Disk Drive commonly referred to HDD or Hard drive are the primary devices for storing all data in a computer. They are the devices storing virtually everything in a computer from the operating system up to your regular files (Warwick, 2010). A hard disk drive is one of the most expensive components in a computer and comprises mostly of aluminium and other non-biodegradable materials (Bifano and...
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The Life and Work of Michael Faraday
7 pages (1750 words)
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...metallic nanoparticles. Electricity and Magnetism As previously said, Faraday’s work was mainly in electricity and magnetism. His earliest recorded work in these fields was the construction of a voltaic pile which he used to decompose sulphate of magnesia (Thompson 168). In 1821, after Davy and William Hyde Wollaston had... The Life and Work of Michael Faraday Faraday was and still remains one of the greatest scientific personalities of all time. He is best known for his discoveries in electrochemistry and electricity. His discoveries of electro-magnetic rotations and inductions provided the basics for electrical engineering, and his discoveries of magneto-optical effect and diamagnetism laid the...
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Testing and analyzing the windows of airbus airplanes and why it does not affect by the high voltage lighting in the sky
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...conductor due to the metallic body also the body of the plane cannot be grounded while it is on flight, this adds more danger to the flying plane(LufthansaTechnik). Also another danger associated with terrestrial gamma rays is the production of high intensity X-rays. If a person remains exposed to these rays... TESTING AND ANALYZING THE WINDOWS OF AIRBUS AIRPLANES High Voltage Lightning in Sky Lightning in the sky is due to heavy electrostatic discharges taking place in charged regions within a cloud or between the adjacent clouds. These charged regions produce lightning flashes in order to equalize the concentration of charge. Commonly three types of lightning flashes are much common, named as:...
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Sound in A Clockwork Orange
8 pages (2000 words)
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...metallic about the voice, suitable for the emotionless personality to which it belongs. Once Alex and his droogs enter the house they have their normal accompaniment of cackling, joyful laughter and indistinguishable words followed by the exaggerated noise of Alex's kicking the man in the face. There is no music at this point, Kubrick... Sound in A Clockwork Orange Sound is an element of film technique which is often overlooked within what is basically seen as a visual art form. Butsound is an integral part of film in general, and within A Clockwork Orange it is particularly important. Kubrick uses sound to act as an ironic commentary upon the nightmarish future that he envisions within this adaptation ...
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Engineering
6 pages (1500 words)
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...metal oxide semi-conductor field-effect transistor) has been taken to be a principal channel transistor, substrate and doping efficiently providing back-to-back junction diodes. Transistor shrinking involves packing excess devices into a certain area and reduction of source-drain gap. Fabrication and performance maintenance have shown to be causing difficulties in reducing the size of MOSFET. MOSFET has got applications as an electric switch or amplifier. Starting of a MOSFET involves application of threshold voltage, which also determines the leakage current. Reasons for keeping the voltage high are to allow minimization of power... SUMMARY OF ARTICLES Li, W., Wang, X., Zhang, X., Zhao, ...
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Electromagnetic
10 pages (2500 words)
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...conductor material (aluminum) was found not to be blocking the magnetic fields, preventing the magnet from attracting the steel metal. Aluminum, therefore, is never an electromagnetic shielding material (Hayt & Buck, 2001). After placing the copper pipe in front of the magnet, it was noted that it was not attracted by the magnet; hence copper is a non... Assignment: Electromagnetics Report The report covers the basic of electromagnetics, defining the simple rules used in electromagnetics through lab exercises and software simulations. The report defines the simple apparatus and procedures that can be used to demonstrate and hence help explain the electromagnetic principles. Aims and objectives The aim of ...
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Proton exchange membrane fuel cells
20 pages (5000 words)
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...conductor. The gas diffusion layer must also have a small gas transfer resistance. A critical parameter for reactant transport in the fuel cell is the porosity of the gas diffusion layer. A significant challenge in the proton exchange membrane fuel cell is water management. In evaluating the performance and design of a fuel cell, ability to remove water plays a critical role. Performance of the fuel cell can be improvised by placing a fine coating between the gas diffusion layer and the catalyst. This is important because it creates a saturation shift across the interface. Most gas diffusion layers are manufactured using... Proton Exchange Membrane Fuel Cells Contents Introduction...
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MRI Safety: RF Burns - Causes and Prevention
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...metallic objects in clothes, leads of the coil, connectors of the ECG and probes that monitor oxygen, due to the significant increase in temperature in conductors exposed to RF energy radiation. Induced current burns may occur when hands and legs of the patient are placed in a manner that leads to a conductive loop pathway (MHRA Device Bulletin, 2007). Dempsey, Condon and Hadley, 2001, p.627, investigating conductive loop... ? MRI Safety: RF Burns – Causes and Prevention Introduction Advances in the field of imaging technology have made magnetic resonance imaging (MRI), available to medical science. MRI is a powerful and versatile diagnostic tool, with the consequence of increasing popularity in its use. ...
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Electronic Drive Motors used in Naval Vessels
18 pages (4500 words)
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...metals which include iron and boron. Miniature motors have the same structure as of the typical permanent magnet motors but they have at least three rotor poles to ensure starting regardless of rotor position. The linkage... ?Electric Drive Propulsion System The electric drive propulsion system being environmentally friendly are also very fuel efficient as compared to thetraditionally used mechanical drive propulsion systems in the ships because of a number of reasons. The reason is very straight forward and easy to understand, a traditional mechanical drive propulsion system consists of two separate sets of turbines, one is for propulsion and the other one is for generating electricity for use for...
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The evolution of phone
10 pages (2500 words)
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...metallic cable (twisted pair and coaxial, made of copper or steel coated with copper) and optical fibers are utilized to guide the electromagnetic waves. On the other hand, the unguided media are wireless communications such as radio signals and satellite signals which are only means of transmission of waves but do not guide them. Each of these different media has characteristic bandwidth, that is, each transmits within a specified range of frequencies. Generally media with greater bandwidth can carry more signals (“Telecommunication”). Twisted pair cables are limited in distance, bandwidth and data rate on account... of attenuation problems, interference ‘cross talk’ from other signals and...
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Magnetisation Behaviour of Transition Metals and Ferrites
35 pages (8750 words)
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...Metals and Ferrites The purpose of this dissertation is to discuss the behaviours of ferrites and transition metals when they are magnetized. Transition metals are located in groups IB through VIIIB on the periodic table of elements, ferrites are ferromagnetic substances and magnetization refers to the exposure of metals to a magnetic field. Within this dissertation, an examinatio of ferro-, ferri-, and paramagnetic fields and how they all behave distinctly and how the level of magnetism of an object can be measured using a superconducting quantum interfering device (SQUID), the Magnetic Optical Kerr Effect (MOKE), or a Vibrating Sample Magnetometer (VSM... ? Magnetisation Behaviour of Transition Metals...
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