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Free research essays on topics related to: spectrum

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  • Wireless Local Area Network Wlan
    1,780 words
    A wireless LAN (WLAN) is a flexible data communication system implemented as an extension to, or as an alternative for, a wired LAN within a building or campus. Using electromagnetic waves, WLANs transmit and receive data over the air, minimizing the need for wired connections. Thus, WLANs combine data connectivity with user mobility, and, through simplified configuration, enable movable LANs. Over the last seven years, WLANs have gained strong popularity in a number of vertical markets, includi...
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  • Speed Of Light Time Of Day
    1,333 words
    Our view of the sky at night is possible because of the emission and reflection of light. 'Light' is the better-known term for the electromagnetic spectrum, which includes waves in the visible, ultra-violet, infra-red, microwave, radio, X-ray and gamma-ray regions. The scale of the spectrum is so large that no region is distinct, several overlap each other. Each of these regions in the electromagnetic spectrum represent transverse waves, travelling as electrical and magnetic fields which interac...
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  • Fetal Alcohol Syndrome Prenatal Alcohol Exposure
    2,697 words
    Fetal alcohol syndrome (FAS) is a set of physical and mental birth defects that can result when a woman drinks alcohol during her pregnancy. When a pregnant woman drinks alcohol, such as beer, wine, or mixed drinks, so does her baby. Alcohol passes through the placenta right into the developing baby. The baby may suffer lifelong damage as a result. FAS is characterized by brain damage, facial deformities, and growth deficits. Heart, liver, and kidney defects also are common, as well as vision an...
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  • Fibre Crystal Mid Infrared Lasers
    1,998 words
    Fibre crystal mid-infrared lasers As we know, a laser is an optical oscillator made out of a gas, liquid or solid with mirrors at both ends (see, e. g. , The Computer Language Company Inc. , 2007 b). To make the laser work, the material is pumped with light or electricity. This pumping has excited the electrons and has caused them to jump to more high orbits. Some electrons do spontaneously drop back to lower energy levels what releases photons (i. e. quantum's of light). The photons do then sti...
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  • Depending On Wavelengths Wavelengths Of The Electromagnetic Spectrum Astronomical
    315 words
    Astronomical Spectroscopy In the article Astronomical spectroscopy, the author tells us about what the spectrum is and how it is shown in the nature and astronomy. A spectrum is the result of decomposition of light on colors of which it consists. During studying a spectrum astrophysicists have made the major openings. A vivid example of a spectrum in the nature is the rainbow. For studying a light source, scientists use a triangular glass prism or diffraction grating to spread out light in a spe...
    Free research essays on topics related to: sky, colors, wavelengths, astronomical, spectrum
  • Australian Telecommunication Industry Part 1
    1,628 words
    Australian Telecommunication Industry Analysis Australia has one of the most open and liberal markets for competition in international telecommunication services. Market liberalization has created opportunities for new players to enter the Australian market and provide all types of services to Australian telecommunications users. An industry analysis states that the international telecommunications services market is currently valued at around A$ 150 b. (Commission paper no. 10, February 1998). ...
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  • Organic Chemistry Boiling Point
    990 words
    TOCyclohexanone OXIDATION OF CYCLOHEXANOL TO CYCLOHEXANONE The oxidation of cyclohexane to cyclohexane involves the removal of hydrogen from the OH group. After separation and purification, an Infrared Spectrum will be run to determine the composition of the recovered material. Infrared Spectroscopy is a very powerful technique used in the determination of molecular structure and the identification of unknown organic materials. The infrared spectrum yields direct information about the presence o...
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  • Cycles Per Second Magnetic Fields
    2,862 words
    The Effects of Living Under Electro Magnetic Fields Power Lines Electric power is a fact of life in America in the world today. Ever since electric power was introduced society has thought nothing of the harmful effects of electromagnetic fields or electricity as long as they had it at their disposal. I will not be able to answer the question for you about how harmful it is but I will be able to enlighten you with information to help you decide how harmful it really is. For many years there have...
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  • Spread Spectrum Packet Switching
    5,050 words
    Wireless Technology Applied To Computer Processing Essay, Wireless Technology Applied To Computer Processing Wireless Technology applied to Computer Processing Abstract Wireless technology can provide many benefits to computing including faster response to queries, reduced time spent on paperwork, increased online time for users, just-in-time and real time control, tighter communications between clients and hosts. Wireless Computing is governed by two general forces: Technology, which provides a...
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  • X 10 S 1
    1,147 words
    Fluorescence Study of the Kinetics of Energy Transfer Between Dyes 1. Introduction Coumarin 1 and Sodium fluorescein are two dyes which absorb and emit light in the visible region. By using a spectrophotometer we are recording an absorption spectrum and then determining the molar decade absorption coefficients, which will be used later to interpret and analyse the fluorescence spectra. For fluorescence spectra, there are two kinds, the excitation and the emission spectrum. The excitation spectru...
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  • Division Multiple Access Spread Spectrum
    4,863 words
    Wireless Technology applied to Computer ProcessinAbstrac Wireless technology can provide many benefits to computing including faster response to queries, reduced time spent on paperwork, increased online time for users, just-in-time and real time control, tighter communications between clients and hosts. Wireless Computing is governed by two general forces: Technology, which provides a set of basic building blocks and User Applications, which determine a set of operations that must be carried ou...
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  • Political Spectrum Al Gore
    1,026 words
    How Issues Are Affected By the Political Spectrum On April 30, 1789, the United States of America elected our first president to lead our country. Then every four years thereafter, another president is elected. When election time comes around most Americans do not know anything about the issues involved and / or do not even know who is running. The two current candidates this year are Al Gore, the Democrat, and George Bush, the Republican. Three main issues that both parties deal with are Social...
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  • Dsm Iv Diagnostic Criteria
    2,109 words
    Although at first sight the DSM-IV classification system appears to provide clinicians with a useful framework of which to view their clients, on closer inspection however, the picture is somewhat less satisfactory. Criticisms of the system range from Wakefield's (1997) analysis that psychological presentation ranges from problems of living to harmful dysfunction; through to Livesley, Schroeder &# 038; Jangs (1994) counter-argument that evidence of discontinuity between different diagnoses and n...
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  • Factors That Affect Light Energy
    2,125 words
    Investigation Into The Factors That Affect The Investigation Into The Factors That Affect The Rate Of Photosynthesis In Elodea Investigation into the factors that affect the rate of photosynthesis in Elodea Introduction? ? Photosynthesis is the chemical process, which takes place in every green plant to produce food in the form of glucose. ? Plants use the suns energy to join together water and carbon molecules to make the glucose, which is sent around the plant to provide food. ? Cells in the r...
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  • Electromagnetic Waves T V
    288 words
    An Magnetic Spectrum Electromagnetic Spectrum An electromagnetic spectrum is the spectrum in which electromagnetic waves are sent out and in which they can be detected. The spectrum of electromagnetic waves includes the following waves: microwave, radar, satellite, UHF T. V. , VHF T. V. , FM radio, CB radio, amateur radio, and AM radio. All of theses waves are called millimeter waves. They are the waves that cannot be. The only form of wave that can be seen in the electromagnetic spectrum is ult...
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  • Division Multiple Access Spread Spectrum
    4,292 words
    Wireless Technology applied to Computer Processing Wireless technology can provide many benefits to computing including faster response to queries, reduced time spent on paperwork, increased online time for users, just-in-time and real time control, tighter communications between clients and hosts. Wireless Computing is governed by two general forces: Technology, which provides a set of basic building blocks and User Applications, which determine a set of operations that must be carried out effi...
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  • Democrats And Republicans Political Spectrum
    791 words
    The Political Spectrum The spectrum of political attitudes is a diagram that divides political thoughts and ideologies into two parts or halves: the left and the right. From the center, moving to the left, the attitudes and ideologies grow more liberal, from liberal to radical and from liberalism to communism. From the center, moving to the right, the attitudes and ideologies grow more conservative, from conservative to reactionary and from conservatism to monarchism or fascism. The division evi...
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  • M P H Black Hole
    3,742 words
    Black holes are objects so dense that not even light can escape their gravity, and since nothing can travel faster than light, nothing can escape from inside a black hole. Loosely speaking, a black hole is a region of space that has so much mass concentrated in it that there is no way for a nearby object to escape its gravitational pull. Since our best theory of gravity at the moment is Einsteins general theory of relativity, we have to delve into some results of this theory to understand black ...
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  • Van Der Apple Ii
    1,136 words
    Acorn Archimedes 52 22 June 2000 Amiga 808 30 Sept 2000 Amiga CD 32 / CDTV (Home page) 49 6 Nov 2000 Amiga Demo 0. 1 500 6 Nov 2000 Amstrad Carts 13 17 April 2000 Amstrad Disk 2593 17 April 2000 Amstrad tapes 5 17 April 2000 Apple II 1890 9 June 2000 Apple II GS 385 17 April 2000 Atari 800 XL 795 30 April 2000 Coleco Adam digital data packs 22 31 July 2000 Coleco Adam disks 79 31 July 2000 Dragon 32 249 17 April 2000 Enterprise 111 13 July 2000 Mess 0. 37 beta 10 20001227 Logiqx 210 04 Jan 2001 ...
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