convection

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Related to Convection cooling: Thermal convection

current

 [kur´ent]
1. something that flows.
2. specifically, electricity transmitted through a circuit.
alternating current a current that periodically flows in opposite directions; its amplitude fluctuates as a sine wave.
convection current a current caused by movement by convection of warmer fluid into an area of cooler fluid.
direct current a current that flows in one direction only; when modeled as a wave, its amplitude is constant. When used medically it is called galvanic current. This current has distinct and important polarity and marked secondary chemical effects.
galvanic current a steady direct current.
current of injury an electric current that flows between injured myocardium and normal myocardium, because such cells have a reduced membrane potential; it may be either diastolic or systolic.
current of injury, diastolic the current that flows from injured to noninjured tissue during electrical diastole.
current of injury, systolic the current that flows from healthy tissue to injured tissue during electrical systole.
inwardly rectifying current current that rectifies so that it passes more easily towards the interior of a cell.
leakage current the electrical current that exists in the parts or metal case of electrical equipment.
outwardly rectifying current current that rectifies so that it passes more easily towards the exterior of a cell.
potassium rectifying c's transmembrane currents that rectify inwardly or outwardly to make adjustments in cellular functions; they are mainly responsible for the repolarization phase of the action potential. There are at least six mechanisms by which potassium ions move across cardiac cell membranes in the role of rectifier.

con·vec·tion

(kon-vek'shŭn),
Conveyance of heat in liquids or gases by movement of the heated particles, as when the layer of water at the bottom of a heated pot rises or the warm air of a room ascends to the ceiling.
[L. con-veho, pp. -vectus, to carry or bring together]

convection

/con·vec·tion/ (kon-vek´shun) the act of conveying or transmission, specifically transmission of heat in a liquid or gas by bulk movement of heated particles to a cooler area.convec´tive

convection

[kənvek′shən]
Etymology: L, convehere, to bring together
(in physics) the transfer of heat through a gas or liquid by the circulation of heated particles.

con·vec·tion

(kŏn-vek'shŭn)
Conveyance of heat in liquids or gases by movement of the heated particles, as when the layer of water at the bottom of a heated pot rises or the warm air of a room ascends to the ceiling.
[L. con-veho, pp. -vectus, to carry or bring together]

convection

the propagation of heat through liquids and gases by the movement of the heated particles, increasing their kinetic energy.

convection

the act of conveying or transmission; specifically, transmission of heat in a liquid or gas by circulation of heated particles.
References in periodicals archive ?
30 to be procured food transport trolleys with induction heat and convection cooling for the Knappschaftskrankenhaus Bottrop.
Absopulse Electronics announced the BAP 1K-U7712 Series of DC/DC converters that generate up to 1 kW output power with convection cooling - no fans or forced air are required.
With a compact 2"x4" footprint, and a height of just 1", the NPS40-M series supports up to 45 W with convection cooling and up to 60 W with forced air cooling.
Users enjoy silent operation thanks to the heat-releasing aluminum case and convection cooling design, which eliminates the need for a noisy fan.
This new single output embedded supply accepts wide input range of 90 V to 264 VAC and with over 90 percent efficiency plus convection cooling has one of the smallest heat footprint among the supplies available in AC to DC market.
Specifically designed for medical applications, it is capable of delivering 400 W of continuous output power at 7 CFM forced air or 300 W at convection cooling.
Continuous output power with convection cooling (up to 100 W with 5 CFM of forced air.
To address cooling, the rack's innovative design provides efficient convection cooling and improved ventilation over previous racks.
Alternatively using convection cooling alone, the units can provide up to 100 W output.
Both series deliver 80 watts of continuous output power with convection cooling, which rises to 100 watts with just 5 CFM of forced air, and provide a long hold-up time for reliable operation at more than 28 ms at any input voltage.
An operating temperature range from -25[degrees] to 70[degrees]C without derating and with natural convection cooling.
The ruggedized CP3-GESW12M3R delivers the same ease-of-use, features and functionality as the CP3-GESW12M3 plus enhanced environmental protection with ruggedization and convection cooling.