TRANSDUCERS Transducers are electric or electronic devices that transform energy from one form to another. A transducer is a device that converts one form of energy to other form. It converts the measureand to a usable electrical signal. In other word it is a device that is capable of converting the physical quantity into a proportional electrical quantity such as voltage or current. Industrial uses of transducers - Temperature‚ force‚ strain‚ liquid level‚ flow rate‚ electrical conductivity
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Space Telescope silicon solar cell shown here‚ the basic materials‚ the doping and the shape of the junction are chosen in such a way as to increase their capability of transforming the light energy into electrical energy. Each cell is capable of producing a small amount of current at a relatively low voltage‚ more or less like a common pen-light battery. Many of them have to be combined in series to produce the amount of electric power needed for a satellite to function. A silicon solar cell from
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Study Guide GEOL 1500 test #1 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) What are the basic differences between the disciplines of physical and historical geology?|1)| A) physical geology is the study of fossils and sequences of rock strata; historical geology is the study of how rocks and minerals were used in the past B) physical geology involves the study of rock strata‚ fossils‚ and deposition in relation
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Pneumonoultramicroscopicsilicovolcanoconiosis Many of the longest words in the English language are medical terms. Medicine and Medical Terminology has a language of its own‚ and its vocabulary includes terms built from Greek and Latin word parts‚ eponyms‚ acronyms and modern language. This why it is sometimes hard understand what the doctor is saying. There are a lot of long complicated words especially in medical terminology. To be able to understand the meaning of a medical term it is best
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transmit these nerve pulses to other neurons which are capable of receiving them. Neurons are the structural constituents of the brain. Typically‚ neurons are five to six orders of magnitude slower than silicon logic gates. Neural events happen in the millisecond range as compared to events in silicon chip‚ which happen in the nanosecond range. However‚ the brain makes up for the relatively slow rate of operation of a neuron by having an astonishing number of them‚ 10 billion‚ to be more precise.
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density. The interior of the Earth‚ similar to the other terrestrial planets‚ is chemically divided into layers. The mantle is a layer between the crust and the outer core. ... 2. What elements make up the Earth’s mantle? Magnesium‚ silicon‚ iron and oxygen‚ aluminum‚ silicon‚ calcium‚ sodium and potassium 3. Describe the “big splash” theory of the Moon’s origin? The Big Splash Theory is the current theory that explains the formation of the Moon. This theory states that approximately 4.5 billion years
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the problem. The water had somehow been contaminated with trichloroethylene and silicon (used to water proof leather). Jan was going to prove in court that W.R. Grace and Beatrice Foods knowingly contaminated the river that was located in Woburn Wells and by contaminating the river it caused twelve people to die from leukemia. ISSUES: Did the drinking water that was contaminated with Trichloroethylene and silicon‚ by W.R. Grace Company and Beatrice Foods‚ cause the leukemia deaths and other
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Vietnamese identity and more appreciative of other cultures. In a way‚ I’m thankful for my middle school experience because in high school‚ I was able to take my negative experiences and develop a passion for human rights. Had I continued living in Silicon Valley‚ being Vietnamese would have just been a fact‚ but never something I really embraced. Being put in an environment where I’m different and not always comfortable forced me to examine and defend what is important to me‚ and now‚ as much as I
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1. What is the composition of latent print residue and how does it affect the viability of latent prints. The composition of latent finger print residue is the natural secretions of sweat from the eccrine glands that are present in epidermal ridges of the finger. It contains water‚ ammonia‚ urea‚ salts and sugars. They also contain lipids‚ amino acids and proteins. Other chemicals can be found in the sweat depending on what the person has ingested. Developing fingerprints takes time and patience
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Physics‚ Columbia University‚ New York‚ New York 10027‚ United States ABSTRACT Using micro-Raman spectroscopy and scanning tunneling microscopy‚ we study the relationship between structural distortion and electrical hole doping of graphene on a silicon dioxide substrate. The observed upshift of the Raman G band represents charge doping and not compressive strain. Two independent factors control the doping: (1) the degree of graphene coupling to the substrate and (2) exposure to oxygen and moisture
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