convection

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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 ?
To simulate a convectional drying process a standard climate chamber (Binder KBF 240) was used drying fourteen samples at 85 [degrees]C and 15% relative humidity (RH).
This heating mode is different from convectional heating because all the molecules in the heated system receive same amount and rate of heat readily energized and resulting to higher reaction rates and greater selectivity.
The objective of this study is to determine the optimum position to install windows in thick wall apertures to minimize the linear thermal transmittance, around the windows for walls retrofitted with convectional insulation and VIPs.
This is because of the heating of land surface which leads to formation of convectional rainfall.
The tight spacing between the LEDs and small light emitting surface that make chip on board LEDs attractive also present high heat fluxes that must be addressed--the natural convectional cooling that is present in more traditional solid state lighting is hindered with the small surface area of COB.
Manama: May 12 -- (BNA)-- An official source from the Central Bank of Bahrain (CBB) anticipated starting of implementation of executive procedures for guaranteeing of Convectional and Islamic banking deposits and investment accounts within the next two months, through the deduction of subscriptions from deposits according to market value.
air masses that suppress convectional uplift over land.
Over the years, the Trilinear Piper diagrams are useful in bringing out chemical relationships among groundwater samples in more definite terms compared to other convectional plotting methods.
In previous works, dynamic response of some convectional materials such as metals (14), (15) and composites (16) during high strain rate were investigated.
For a convectional survey on the ground, we use surveyor instruments; with GPS for larger jobs and EDMs (electronic distance measuring) with infrared laser beams, as compared to pulling steel tape measurements by hand.
The rainfall types here are convectional, characterised by massive thunderstorms, lightning, and windstorms.
Microwave baking is a rapid method as compared to the convectional heating and the effect of the MW heating on the grains to limit the moisture without changing the other properties has been investigated for facilitating the product development (Macarthur and Dappolonia, 1982; Campana et al.