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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 heatlatent 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 gas, or the
..... Click the link for more information. of fusion. See also melting pointmelting 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 can be used
..... Click the link for more information. . 2 The combining of two light atomic nuclei to form a single heavier nucleusnucleus,
in physics, the extremely dense central core of an atom. The Nature of the Nucleus
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 energynuclear 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 is energy, m
..... Click the link for more information. ; hydrogen bombhydrogen bomb
weapon deriving a large portion of its energy from the nuclear fusion of hydrogen isotopes. In an atomic bomb, uranium or plutonium is split into lighter elements that together weigh less than the original atoms, the remainder of the mass
..... Click the link for more information. ; cold fusioncold 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 high temperatures, and
..... Click the link for more information. .
fusion(fyoo -zhŏn) See nuclear fusion.
in linguistics, a means of combining a stem with an affix, in which the nature of the stem is determined by the nature of the affix, or vice versa. Fusion is distinct from agglutination, which lacks such a dependence. Since the degree of dependence can vary, one may speak of the degree of fusion, which is inversely proportional to the degree of agglutination.
Fusion is said to be minimal when the affix determines only the class of the stem; for example, the Russian suffix -ost’ (“-ness”) requires an adjectival stem. Fusion is termed maximal when the combination of stem and affix influences the selection of a particular morph for the stem or for the affix, in both inflection and word formation. In inflection, compare Russian vid-ish’ (“you see,” sing.) with vizh-u (“I see”) and id-esh’ (“you are going,” sing.); compare Greek π∈πoμφ-α (“I sent,” perf.) with π∈μπ-ω (“I send”). In word formation, compare English “depth” and “deep.” The term “fusion” is often used only to designate the latter phenomenon, that is, maximal fusion. Languages in which inflected forms are formed by means of fusion are called fusional languages.
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.
FusionThe following "Fusion" products are in this encyclopedia:
Product Type of Software VMware Fusion Mac Virtual Machine ColdFusion Web authoring NetObjects Fusion Web authoring FOCUS Fusion OLAP database Product Type of Hardware AMD Fusion CPU + GPU chip Fusion Drive Mac HD/SSD drive Apple A series Apple A10 processor