| Collis, John Leighton | <person> British thoracic surgeon, *1911. See: Collis gastroplasty. (05 Mar 2000) |
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| Collis-Belsey procedure | A surgical method of treating oesophageal structure by creation of a neoesophagus and a fundoplication antireflux procedure. (05 Mar 2000) |
| collision | <physics> Refers to the close approach of two or more particles, photons, atoms, nuclei, etc, during which such quantities as energy, momentum, and charge may be altered. More-or-less synonymous with scattering, except in scattering one generally thinks of one of the particles as being at rest, and the other colliding particles scatter from their initial direction of motion due to the collision. (09 Oct 1997) |
| collision cross-section | <radiobiology> Effective surface area of a particle when it collides with another, describes probability of collisions between the two particles. (09 Oct 1997) |
| collision frequency | <chemistry> The rate at which chemical species collide, used in theories of chemical kinetics. Also, the frequency with which gaseous molecules collide. (09 Oct 1997) |
| collision theory | <chemistry> A mathematical description of the number of collisions between molecules in a sample of matter per unit time, useful for predicting rates of reaction. (09 Oct 1997) |
| collision time | <radiobiology> Typical time which passes between two consecutive collision events for a given particle. Inverse of the collision frequency, equal to the mean free path divided by the particle's velocity. In plasmas, the (Coulomb) collision time decreases with increasing density, and increases with increasing temperature. (09 Oct 1997) |
| collision tumour | Two originally separate tumour's, especially a carcinoma and a sarcoma, that appear to have developed by chance in close proximity, so that an area of mingling exists. See: carcinosarcoma. (05 Mar 2000) |
| collisionless plasma model | <radiobiology> Model of a plasma in which the density is so low, or the temperature so high, that close binary (two-body) collisions have practically no significance (on certain timescales) because the time scales of interest are shorter than the collision time. Yields valid physical results for timescales much shorter than the average collision time in a real plasma. (09 Oct 1997) |
| collision |
(physics) an brief event in which two or more bodies come together; "the collision of the particles resulted in an exchange of energy and a change of direction" an accident resulting from violent impact of a moving object; "three passengers were killed in the collision"; "the collision of the two ships resulted in a serious oil spill" a conflict of opposed ideas or attitudes or goals; "a collision of interests"
Ãâó: wordnet.princeton.edu/perl/webwn
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| collision |
(col
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| collision |
An event that occurs when two or more nodes broadcast packets at the same time the packets collide.
Ãâó: www.geocities.com/SiliconValley/Campus/8262/Databa...
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| collision |
a dynamic event consisting of the interaction between two or more bodies, usually of very brief duration, resulting in a change of momentum of at least one participating body
Ãâó: library.thinkquest.org/J0111360/glos.html
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| collision |
In an Ethernet network, a collision occurs when two nodes attempt to communicate at exactly the same time. This requires both nodes to retransmit.
Ãâó: members.tripod.com/businessedu/CET_1/107CET_Networ...
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| Collis | United States railroad executive who built the western section of the first United States transcontinental railroad (1821-1900) |
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| Collis | a conflict of opposed ideas or attitudes or goals |
| Collis | an accident resulting from violent impact of a moving object |
| Collis | (physics) an brief event in which two or more bodies come together |
| Collis | a course of action (following a given philosophy) that will lead to conflict if it continues unabated |
| Collis | a course of a moving object that will lead to a collision if it continues unchanged |
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