fusion, in physics.
1 The change of a substance from the solid to the liquid state, also known as melting. The heat given up by a unit mass of a substance during fusion is called the latent heat latent heat, heat change associated with a change of state or phase (see states of matter ). Latent heat, also called heat of transformation, is the heat given up or absorbed by a unit mass of a substance as it changes from a solid to a liquid, from a liquid to a
..... Click the link for more information. of fusion. See also melting point melting point, temperature at which a substance changes its state from solid to liquid. Under standard atmospheric pressure different pure crystalline solids will each melt at a different specific temperature; thus melting point is a characteristic of a substance and
..... Click the link for more information. .
2 The combining of two light atomic nuclei to form a single heavier nucleus nucleus, in physics, the extremely dense central core of an atom .
The Nature of the Nucleus
Composition
Atomic nuclei are composed of two types of particles, protons and neutrons, which are collectively known as nucleons.
..... Click the link for more information. , with the release of energy. See nuclear energy nuclear energy, the energy stored in the nucleus of an atom and released through fission, fusion, or radioactivity . In these processes a small amount of mass is converted to energy according to the relationship E = mc2, where E
..... Click the link for more information. ; hydrogen bomb neutron bomb, which would have a minimum trigger and a nonfissionable tamper; there would be blast effects and a hail of lethal neutrons but almost no radioactive fallout; this theoretically would cause minimal physical damage to buildings and equipment but kill most living things.
..... Click the link for more information. ; cold fusion cold fusion or low-temperature fusion, nuclear fusion of deuterium, an isotope of hydrogen , at or relatively near room temperature. Fusion, the reaction involved in the release of the destructive energy of a hydrogen bomb , requires extremely
..... Click the link for more information. .
The following "Fusion" software products are in this Encyclopedia:
Product Type of Software
VMware Fusion Virtual Machine for the Mac
ColdFusion Web authoring
NetObjects Fusion Web authoring
FOCUS Fusion OLAP database
| 1. | | FUSION - Software package supplied by Network Research Corporation
claiming to connect various different configurations of LAN. | |
| 2. | (programming) | fusion - A program transformation where a composition
of two functions is replaced by in-lining them and combining
their bodies. E.g.
f x = g (h x) ==> f x = g (2 * x)
g x = x + 1 f x = 2 * x + 1
h x = 2 * x
This has the beneficial effect of reducing the number of
function calls. It can be especially useful where the
intermediate result is a large data structure which can be
eliminated.
See also vertical loop combination. | |
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diaphyseal-epiphyseal fusion
