OPTICAL AMPLIFIER An optical amplifier is a device that amplifies an optical signal directly‚ without the need to first convert it to an electrical signal. An optical amplifier may be thought of as a laser without an optical cavity‚ or one in which feedback from the cavity is suppressed. Optical amplifiers are important in optical communication and laser physics. There are several different physical mechanisms that can be used to amplify a light signal‚ which correspond to the major types of optical
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Rachel Hahn Cheryl Blackwell Seminar November 2012 Optical Illusions An illusion is the distorted perception of a stimulus. They are not to be confused with hallucinations‚ which are false perceptions when there is no presence of a stimulus‚ in contrast‚ illusions are the misinterpretation of a true sensation (Illusion Wikipedia). Illusions are mundane phenomena‚ and are experienced by nearly everyone in similar ways where hallucinations are a personal experience and are typically limited
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1. For this experiment‚ what were the independent variable and the dependent variable? What were the constants? The environmental factors that you are testing on the rate of transpiration are the independent variable of this experiment. These independent variables are specifically light‚ fan‚ dark‚ and humidity. The dependent variable is the rate of transportation because this depends on whatever environmental factor the plant is placed. The constants are things like the type of plant used‚ room
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Q1. Various digital-to-digital encoding techniques are as follows: a) Signal spectrum – a transmission contains lack of high frequency components which means less bandwidth is required and direct current component is also desirable. With no dc component‚ ‘ac’ coupling via transformer is possible. Finally‚ the magnitude of the effects of signal distortion and interference depend on the spectral properties of the transmitted signal. b) Clocking – to provide a separate clock lead to synchronize the
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Information and Communication Audit Work Program Project Team (list members): Project Timing: Date Comments Planning Fieldwork Report Issuance (Local) Report Issuance (Worldwide) Audit Objectives The purpose of this audit work program is to assess‚ at a high level‚ and validate key controls in place for Information and Communication. Inadequate or ineffective controls in this area may give rise to financial and operational risks. Risks addressed in this audit work program include:
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1) What is Electro-Plating? Electroplating is the process of coating a metal object with a thin layer of another metal by means of electrolysis. 2) What is Copper Plating? Copper plating is a coating of copper metal on another material‚ often other metals. Plating is designed to increase durability‚ strength‚ or visual appeal‚ and copper plating specifically is often used to improve heat and electrical conductivity. 3) What are the uses of electro-plating/copper plating? Electroplating
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Optical Distortion Case Analysis Introduction In an effort to solve the cannibalization problem of chickens and to find a more efficient alternative for the practice of debeaking‚ Robert D Garison‚ owner of a large farm in Oregon‚ and Ronald Olsen‚ a businessman‚ formed the Optical Distortion Lens Inc. in 1965. They invented a revolutionary product‚ a lens for chickens that would stop the cannibalization between chickens and received a patent on it. In 1973‚ Optical Distortion got into an
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the central network. As every office uses phone lines to connect to each other‚ so there is delay occur due to the unrelated traffic on the lines. Due to the problem‚ this company need to determine how the background traffic is affecting the FTP traffic on the network. So‚ this analysis is to compare the FTP performance on the network under two scenarios. First is network without background traffic and‚ second is the scenario with background traffic. This WAN network contains 5
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Optical Activity of Carvones Kyle Peterson Chem. 243a Matt Judd‚ Sec. 25 Date Performed: 10/29/03 Abstract: The objective of this experiment is to use Gas Chromatography to distinguish between two enantiomers of carvone from caraway oil and spearment oil and to find the 2 carvone’s optical activity as well as percent carvone in spearment and caraway oil. It was found that S-carvone had an optical activity of 0.0047 and R-carvone had an optical activity of 0.516 and that spearment oil is 59%
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[pic] An optical illusion also called a visual illusion is characterized by visually perceived images that differ from objective reality. The information gathered by the eye is processed in the brain to give a percept that does not tally with a physical measurement of the stimulus source. There are three main types: literal optical illusions that create images that are different from the objects that make them‚ physiological ones that are the effects on the eyes and brain of excessive stimulation
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