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What is the use of acetal?
dilute ethanoic acid is used as a preservative in the preparation of pickles.it is used for making cellulose acetate which is an important artificial fibre.it is used in the manufacture of acetone and esters used in perfumes.it is used in the preparation of dyes.it is used to coaggulate rubber from latex.it is used for making white lead which is used as a white paint.it is used as a chemical reagent in chemistry lab.
How is visible light used in photography?
In much the same way as sound is used in music, food is used in cooking, and soil is used in agriculture.
What microscope is used for observing yeast mitochondria?
Light microscope cannot be used. An electron microscope houl b used
What are volcanoes used for?
volcanoes are used for nothing
How is quicklime used?
it is used in motar and in cement
DHPT in full and how it works?
DHPT in full is Double Heterostructure Photo Transistor. DHPT works by interchanging the double heterostructure's emitter and collector all through when the transistor is in use.
How works heterojunction bipolar transistor?
The heterojunction bipolar transistor (HBT) is a type of bipolar junction transistor (BJT) which uses differing semiconductor materials for the emitter and base regions, creating a heterojunction. The HBT improves on the BJT in that it can handle signals of very high frequencies, up to several hundred GHz. It is commonly used in modern ultrafast circuits, mostly radio-frequency (RF) systems, and in applications requiring a high power efficiency, such as RF power amplifiers in cellular phones. The idea of employing a heterojunction is as old as the conventional BJT, dating back to a patent from 1951.
What has the author Peter Ashburn written?
Peter Ashburn has written: 'Sige Heterojunction Bipolar Transistors'
What has the author Stephen M Young written?
Stephen M. Young has written: 'A superlattice emitter structure for a heterojunction bipolar transistor'
What has the author Mark Gerard Schumacher written?
Mark Gerard Schumacher has written: 'VLSI compatible SiGe heterojunction bipolar transistors'
What has the author Aveek Sarkar written?
Aveek Sarkar has written: 'Radiation effects in compound semiconductor heterostructure devices' -- subject(s): Semiconductors, Effect of radiation on, Heterostructures
What has the author E A B Cole written?
E. A. B. Cole has written: 'The mathematical and numerical modelling of heterostructure semiconductor devices' -- subject(s): Mathematical models, Semiconductors
What has the author Terry E McMahon written?
Terry E. McMahon has written: 'Design, fabrication and characterization of complementary heterojunction field effect transistors' -- subject(s): Modulation-doped field-effect transistors, Design and construction
What is kink effect?
The 'kink effect' now-a-days used in semiconductor physics describes the design characteristic of a semiconductor device. The design earns it's name after 'Hofmeister kink effect' a car design which describes sharp streamlined type (by look) design of rear window bottom. The kink effect in semiconductor device describes such sharp heterojunction intentionally or unintentionally observed in the device.
What is type 1 and type 2 semiconductors?
Type 1 Semiconductors: The bandgap of one semiconductor is completely contained in the bandgap of the other one. In double heterostructure design carriers will be confined in the smaller bandgap material. this structure is used to form barrier/quantum well in Multi quantum well lasers and LEds Type II: like Type I The bandgap of the two materials overlap but the changes in the conduction and valence bands change sign. this type of materials do not use for light emiiting application as carriers can not be confined.
What is done to the base region of a transistor to improve its opration?
To improve the operation of the base region of a transistor, it is often doped with specific impurities to enhance its conductivity and control the flow of charge carriers. This process, known as doping, adjusts the concentration of holes or electrons, optimizing the base's width and thickness for better current amplification and switching speed. Additionally, techniques like using a very thin base or employing a heterojunction can further enhance performance by reducing recombination losses and improving electron mobility.
Is thalidomide used to treat cancer?
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