Explore topic-wise fullforms in Electronics

INFO: Full form for FIC is Fluid Integrated Circuit in Electronics category
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INFO: Full form for FCOB is Flip Chip On Board in Electronics category
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Direct Simulation Monte Carlo (DSMC) method uses probabilistic Monte Carlo simulation to solve the Boltzmann equation for finite Knudsen number fluid flows.

The DSMC method was proposed by Prof. Graeme Bird, Emeritus Professor of Aeronautics, University of Sydney. DSMC is a numerical method for modeling rarefied gas flows, in which the mean free path of a molecule is of the same order (or greater) than a representative physical length scale (i.e. the Knudsen number Kn is greater than 1). In supersonic and hypersonic flows rarefaction is characterized by Tsien's parameter, which is equivalent to the product of Knudsen number and Mach number (KnM) or M 2 {\displaystyle ^{2}} /Re, where Re is the Reynolds number. In these rarefied flows, the Navier-Stokes equations can be inaccurate. The DSMC method has been extended to model continuum flows (Kn < 1) and the results can be compared with Navier Stokes solutions.

The DSMC method models fluid flows using simulation molecules which represent a large number of real molecules in a probabilistic simulation to solve the Boltzmann equation. Molecules are moved through a simulation of physical space in a realistic manner that is directly coupled to physical time such that unsteady flow characteristics can be modeled. Intermolecular collisions and molecule-surface collisions are calculated using probabilistic, phenomenological models. Common molecular models include the Hard Sphere model, the Variable Hard Sphere (VHS) model, and the Variable Soft Sphere (VSS) model. The fundamental assumption of the DSMC method is that the molecular movement and collision phases can be decoupled over time periods that are smaller than the mean collision time. Various collision models are presented in.

Currently, the DSMC method has been applied to the solution of flows ranging from estimation of the Space Shuttle re-entry aerodynamics, to the modeling micro-electro-mechanical systems (MEMS).

INFO: Full form for CCV is Closed Circuit Voltage in Electronics category
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INFO: Full form for CPES is Center for Power Electronics Systems in Electronics category
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INFO: Full form for KSC is Known Switch Condition in Electronics category
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INFO: Full form for CFCC is Continuous Fiber Ceramic Composite in Electronics category
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INFO: Full form for DLD is Dark Line Defect in Electronics category
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INFO: Full form for DLD is Digital Logic Design in Electronics category
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INFO: Full form for CHE is Ceramic Heat Emitter in Electronics category
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INFO: Full form for HCT is High Compression Technology in Electronics category
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INFO: Full form for HCT is High Capacity Trap in Electronics category
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INFO: Full form for HCT is High-speed Cmos (complementary Metal Oxide Semiconductor) Ttl (transistor-transnstor Logic) in Electronics category
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INFO: Full form for ACAD is Anodized Ceramic Aluminum Diaphragm in Electronics category
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In radio equipment, Automatic Frequency Control (AFC), also called Automatic Fine Tuning (AFT), is a method or circuit to automatically keep a resonant circuit tuned to the frequency of an incoming radio signal. It is primarily used in radio receivers to keep the receiver tuned to the frequency of the desired station.

In radio communication, AFC is needed because, after the bandpass frequency of a receiver is tuned to the frequency of a transmitter, the two frequencies may drift apart, interrupting the reception. This can be caused by a poorly controlled transmitter frequency, but the most common cause is drift of the center bandpass frequency of the receiver, due to thermal or mechanical drift in the values of the electronic components.

Assuming that a receiver is nearly tuned to the desired frequency, the AFC circuit in the receiver develops an error voltage proportional to the degree to which the receiver is mistuned. This error voltage is then fed back to the tuning circuit in such a way that the tuning error is reduced. In most frequency modulation (FM) detectors, an error voltage of this type is easily available. See Negative feedback.

AFC was mainly used in radios and television sets around the mid-20th century. In the 1970s, receivers began to be designed using frequency synthesizer circuits, which synthesized the receiver's input frequency from a crystal oscillator using the vibrations of an ultra-stable quartz crystal. These maintained sufficiently stable frequencies that AFCs were no longer needed.

INFO: Full form for AFC is Amplitude Frequency Characteristics in Electronics category
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INFO: Full form for LRC is Leak Rate Check in Electronics category
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INFO: Full form for JBC is Junction Box, Current Relay in Electronics category
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INFO: Full form for GCD is Gas Chromatography Distillation in Electronics category
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INFO: Full form for MAGIC is Mondial Antenna Ground Isolation Circuit in Electronics category
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INFO: Full form for ACN is Accelerator Controls Node in Electronics category
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INFO: Full form for WPC is Wafer Process Chamber in Electronics category
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INFO: Full form for COT is Customer-owned Tooling in Electronics category
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INFO: Full form for GCE is General Computers Electronics in Electronics category
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INFO: Full form for GCE is Gold Circuit Electronics in Electronics category
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