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- Aluminum: A soft, lightweight, silver-white metallic chemical element that is the third most common element. Aluminum is denoted by the symbol Al and has an atomic number of 13, an atomic weight of...more
- Aluminum Chemical Vapor Deposition (ALCVD): A CVD process that results in deposited aluminum on a substrate.more
- Aluminum Interconnect: Aluminum pathways within a microchip that connect the transistors. more
- Aluminum Low Pressure Seed (ALPS): ALPS is originally an aluminum process, now also used for other metal PVD processes. more
- alure: A passage or gallery, especially behind a castle parapet, around a church roof, or along a cloister. more
- AMANDA (Antartic Muon And Neutrino Detector Array): A Cherenkov detector , embedding in the ice located at the south pole, designed to look at very high energy neutrinos. For more information see http://amanda.berkeley.edu/amanda/amanda.html . more
- Ambient: Refers to surrounding environmental conditions such as temperature or noise.In the case of air, ambient air often refers to outdoor air as opposed to indoor air. Ambient or ambience may refer...more
- Ambient Control Chamber (ACC): A Synexis chamber that stores and pressurizes in-process wafers. The chamber attaches to the side of the factory interface and is fed by the FI robots. more
- ambient temperature.: The temperature of the air surrounding a device.more
- Ambro van Hoof, Ph.D.: Assistant Professor Microbiology and Molecular Genetics University of Texas Health Sciences Center at Houston 6431 Fannin Street MSB1.212 Houston, TX 77030 Phone: (713) 500-5234 Fax: (713)...more
- ambulatory : 1. Of a patient, able to walk; not confined to a bed, stretcher, wheelchair, and so on.of a patient, able to walk; not confined to a bed, stretcher, wheelchair, and so on. 2. of or relating to...more
- Amédée Bollée: Amédée Bollée (Amédée Bollée father (1844-1917) is a bell foundry and a French inventor specializes in the automobile. ) dad (1844-1917) is a bell-founder and inventor specializing in French motor...more
- American National Standards Institute (ANSI): A clearinghouse and coordinating
agency for voluntary standards in the United States.more
- American Wire Gauge (AWG): A standard system used to designate the size of
electrical conductors. Gauge numbers have an inverse relationship to size; larger
gauges have a smaller diameter.more
- Americium: Americium is a silvery metal and a completely man-made element whose 6 known isotopes are all radioactive . Americium-241 , the most common isotope, is formed spontaneously by the decay of...more
- Ames Test: Developed by Dr. Bruce Ames in 1979, this test allows for the classification of chemicals with regards to their carcinogenicity/mutagenicity (Ames, B.N., 1979. Identifying environmental chemicals...more
- Amino acid(s): An amino acid molecule has the general formula NH 2 CHRCOOH, where "R" is any one of a number of side groups. Amino acids are building blocks (small molecules that link together to form long...more
- Ammonia: A colorless gaseous alkaline compound (chemical formula NH3). It is very soluble in water, has a characteristic pungent odor, is irritant, is lighter than air, and is formed as a result of the...more
- ammonia liquor: An aqueous solution that is obtained in the destructive distillation of soft coal; it contains ammonia, ammonium compounds, cyanogen, and hydrogen sulfide. more
- ammonia synthesis: The formation of ammonia by a combination of nitrogen and hydrogen gases at high temperature and pressure with the aid of a catalyst. more
- Ammonium nitrate (NH4NO3): Ammonium nitrate is 46% nitrogen, is applied to the soil as prilled fertilizer, and can be subject to substantial nitrogen volatilization losses, expecially under warm, moist, high residue...more
- Ammonium polyphosphate (APP): Ammonium polyphosphate are liquid products made from the reaction between ammonia and superphosphate acid. It is used primarily in fertigation, weed and feed, and seed-placed applications. more
- Ammonium sulfate: Ammonium sulfate is 21%N, is a highly hygroscopic granular material, and is often used when crop producers are trying to correct a sulfur deficiency along with applying some N. more
- Amorphous Semiconductor: A non-crystalline semiconductor material that has no long-range order. It is also called thin film . Although easier and cheaper to make than a crystalline...more
- Amorphous silicon: A type of silicon deposited on a variety of surfaces (rigid and flexible) with thin homogenous layers. Amorphous silicon absorbs light more effectively than crystalline silicon, so the cells can be...more
- Amphetamines: Amphetamines are man-made stimulant drugs. Their effects usually last for several hours and include stimulation of the central nervous system , a sense of well-being and higher energy, a...more
- Amphiphile: A molecule containing both a hydrophilic (water loving) and a hydrophobic (water hating) part. These molecules assemble at the air-water interface. more
- amphiprostyle: 1. H aving columns at the front and back but not on the sides.having columns at the front and back but not on the sides. 2. a building in this style. A building in this style. more
- amphistyle: 1.H having columns in porticoes either at both ends or at both sides and across the length of both sides or ends.having columns in porticoes either at both ends or at both sides and across the...more
- amphitheater: 1. An oval, circular, or semicircular auditorium with tiers of seats rising from a central open area.an oval, circular, or semicircular auditorium with tiers of seats rising from a central open...more
- Amplifier: In general, any device that increases the voltage, current, or power of a signal. In telecom contexts, it refers to any device placed along a phone line that strengthens a voice signal. Most...more
- Amplifier settings: The brains of any headset system, the amplifier houses all the controls for your headset. When you first connect your system, you may need to adjust the amp settings, so your headset works...more
- Amuse: Amuse (Amuse preparer is a car like HKS or Blitz, who prepares the cars.) Is an automotive preparer (preparer An automobile is a transforming vehicle manufacturer.) as HKS or Blitz, who prepares...more
- AMX International AMX: The AMX is a single-seater fighter aircraft versatile and economical lightweight design Italian-built Brazilian AMX International, it is called A-1 in Brazil. Design Wishing to replace its...more
- An airplane that hung 8 chili: The National Research Council and l`Università of Naples Federico II have realized the first aircraft without pilot. Only hung 8 chili and it is in a position to facing missions of exploration to...more
- An ecosystem in order to breathe better: Soon, raising the snout to the sky, it could capitarvi see an aerial small with a funny nose and one strange equipment mails on its front extremity; or taking a walk in some Italian forest you...more
- An enormous flying laboratory: A former Soviet spy airplane has been transformed in the greatest laboratory flying existing to the world for the study of the climatic changes us. Slid 20 January has left from Seville to the...more
- AN INTRODUCTION TO MINING SEISMOLOGY, 55: By Slawomir Gibowicz , Institute of Geophysics, Polish Academy of Sciences Andrzej Kijko , Institute of Geophysics, Polish Academy of Sciences Included in series International...more
- Anaerobic: Anaerobic refers to the absence of oxygenmore
- Anaerobic: Anaerobicmore
- Analog: Refers to a continuous, variable sound wave that is used to transmit signals from one location to another. Television, radio, and telephones have traditionally used analog signals as their...more
- Analog: the same thing as analog ue just a different spelling (US spelling)more
- Analog: Continuously variable. Until recently almost all audio signals were analog. At any instant, it could have a value between zero and a few volts and could be graphed as a flowing waveform. In...more
- analog device: An apparatus that measures continuous information signals (i.e.,
signals that have an infinite number of values). The only limitation on resolution
is the accuracy of the measuring device.more
- analog input interface: An input circuit that uses an analog-to-digital converter to
translate a continuous analog signal, measured by an analog device, into a digital
value that can be used by the processor.more
- analog output interface: . An output circuit that uses a digital-to-analog converter to
translate a digital value, sent from the processor, into an analog signal that can
control a connected analog device.more
- analog signal: A continuous signal that changes smoothly over a given range, rather
than switching suddenly between certain levels as discrete signals do.more
- analog-to-digital converter (A/D): A device that translates analog signals from
field devices into binary numbers that can be read by the processor.more
- Analogue: Data from the natural world which will have an infinite number of variables. For example sound from the natural world will have an infinite number of possible variationsmore
- Analytical Methods: Purely mathematical methods that do not require iteration.more
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