Fr.: charge liée
Any electric charge which is bound to an atom or molecule, in contrast to free charge, such as metallic conduction electrons, which is not. Also known as → polarization charge.
Charge from O.Fr. chargier "load, burden," from L.L. carricare "to load a wagon, cart," from L. carrus "wagon."
Bâr "charge, weight," from Mid.Pers. bâr, from O.Pers./Av. base bar- "to bear, carry," Mod.Pers. bordan "to carry," L. brutus "heavy, dull, stupid, brutish," Skt. bhara- "burden, load," bharati "he carries," Gk. baros "weight," Mod.Pers. gerân "heavy," Skt. guru, L. gravis; PIE *gwere- "heavy," *bher- "carry, give birth."
Fr.: étalement de charge
The heavy saturation of CCD pixels whereby electrons spill over up and down the column; also called blooming.
→ chrge; bleeding, from Bleed, from O.E. bledan, from P.Gmc. *blothjan "emit blood" (cf. Ger. bluten), from *blotham "blood", PIE root bhel- "to bloom, thirve".
Sarriz "overflow", from sar "head" (Mid.Pers. sar, Av. sarah- "head," Skt. siras- "head," Gk. kara "head," keras "horn," Mod.Pers. sarun "horn," L. cerebrum "brain;" PIE *ker- "head, horn") + riz present stem of rixtan "to pour; to flow; to cast" (Mid.Pers. rēxtan and rēcitan "to flow," Av. raēk- "to leave, set free; to yield, transfer," infinitive *ricyā, Mod.Pers; rig in morderig "heritage" (literally, "left by the dead"), Skt. rinakti "he leaves," riti- "stream; motion, course," L. rivus "stream, brook," Old Church Slavic rēka "river," Rus. reka "river," Goth. rinnan "run, flow," rinno "brook," O.E. ridh "stream;" PIE base *rei- "to flow; to run").
barande-ye bâr (#), bârbar (#)
Fr.: porteur de charges
A mobile particle carrying an electric charge. In semiconductors, a mobile electron or hole. Also called carrier.
hamyuqeš-e bâr (#)
Fr.: conjugaison de charges
In particle physics, an operation that changes a particle to its antiparticle in equations describing subatomic particles or, equivalently, reverses its charge and magnetic moment.
Fr.: densité de charge
The → electric charge per unit volume in space, or per unit area on a surface, or per unit length of a line. They are respectively called volume- (ρ), surface- (σ), or line (λ) charge density.
Fr.: échande de charge
A collisional process in which an → ion collides with a neutral → atom or → molecule and captures one of its electrons. One of the most important charge-exchange processes occurring in the → interstellar medium is: O+ + H → H+ + O + 0.020 eV.
Fr.: invariance de charge
Fr.: symétrie de charge
Fr.: piège à charge
Defects or impurities in a CCD structure which prevent charges in certain pixels from being transferred to the next pixel.
→ charge; trap, from O.E. træppe "snare, trap," from P.Gmc. *trap-.
Talé "trap," Mid.Pers. talag "trap, snare."
charge-coupled device (CCD)
dastgâh-e jafsari-ye bâr, sisidi
Fr.: dispositif à transfert de charge
A solid-state detector that stores the electrons, produced by incident photons, in potential wells at the surface of a semiconductor. The packages of charge are moved about the surface by being transferred to similar adjacent potential wells. The wells are controlled by the manipulation of voltage applied to surface electrodes.
charge-injection device (CID)
dastrgâh-e daršâneš-e bâr
Fr.: dispositif à injection de charge
A charge-transfer device that passes along stored charges positioned at predetermined locations; it is used as an image sensor in which the image points are accessed by reference to their horizontal and vertical coordinates.
Fr.: symétrie charge-parité
The laws of physics should be the same if a particle is interchanged with its → antiparticle (→ charge conjugation), or swapped for its mirror image (→ parity symmetry). It is known that charge-parity (CP) symmetry holds for interactions involving → electromagnetism, → gravitation, and → strong interactions, but CP violation is known to occur during → weak interactions involved in → radio decay. Same as → CP-symmetry.
dastgâh-e tarâvaž-e bâr
Fr.: dispositif de transfert de charge
A semi-conductor device that relays stored charges positioned at predetermined locations, such as charge-coupled or charge-injection devices.
charge-transfer efficiency (CTE)
kârâyi-ye tarâvaž-e bâr
Fr.: efficacité de transfert de charge
Fraction of the original charge which is successfully transferred from one pixel to the next in one CCD cycle.
Past participle of "to → charge."
Bârdâr "charged," from bâr, → cahrge, + dâr "having, possessor," from dâštan "to have, to possess," Mid.Pers. dâštan, O.Pers./Av. root dar- "to hold, keep back, maitain, keep in mind," Skt. dhr-, dharma- "law," Gk. thronos "elevated seat, throne," L. firmus "firm, stable," Lith. daryti "to make," PIE *dher- "to hold, support."
zarre-ye bârdâr (#)
Fr.: particule chargée
conservation of charge
Fr.: conservation de charge
Fr.: rétention de charge
In a CCD detector, phenomenon caused by charge traps or potential pockets, which prevent electrons from being released to the adjacent pixel; eventually the electrons may be released in a subsequent cycle.
Differed, p.p. of differ, from O.Fr. différer, from L. differre "set apart, put off, delay," also "be different, differ," → differ; → charge.
Bâr→ charge; bâzdâšté "prevented," p.p. of bâzdâštan, from preventive suffix bâz- + dâštan "to hold, have, maintain," Mid.Pers. dâštan, O.Pers./Av. root dar- "to hold, keep back, maitain, keep in mind," Skt. dhar- "to hold, keep, preserve," dharma- "law," Gk. thronos "elevated seat, throne," L. firmus "firm, stable," Lith. daryti "to make," PIE *dher- "to hold, support."
The removal or transference of an electric charge, as by the
conversion of chemical energy to electrical energy.
From M.E. deschargen, from O.Fr. deschargier "unload," from L.L. discarricare, from → dis- "do the opposite of" + carricare "to load a cart," from carrus "cart."