- 行业: Printing & publishing
- Number of terms: 178089
- Number of blossaries: 0
- Company Profile:
McGraw Hill Financial, Inc. is an American publicly traded corporation headquartered in Rockefeller Center in New York City. Its primary areas of business are financial, publishing, and business services.
The science of the interaction of the elementary particles and radiations characteristic of nuclear reactors with matter in bulk. These particles and radiations include neutrons, beta (β) particles, and gamma (λ) rays of energies between zero and about 10<sup>7</sup> eV.
Industry:Science
The term picrite has been used with several different meanings. It is generally considered to include certain medium- to fine-grained ultramafic igneous rocks composed chiefly of olivine with smaller amounts of pyroxene, hornblende, and plagioclase feldspar (labradorite).
Industry:Science
The part of optics using the light or dark bands produced by interference or diffraction of light. Distances between fringes are usually very small, because of the short wavelength of light. Fringes are clearer and more numerous when produced with light of a single color.
Industry:Science
The sodium salt of <i>o</i>-sulfobenzimide. The free imide, called insoluble saccharin because it is insoluble in water, has limited use as a flavoring agent in pharmaceuticals. The sodium and calcium salts are very soluble in water and are widely used as sweetening agents.
Industry:Science
The process whereby two or more waves of the same frequency or wavelength combine to form a wave whose amplitude is the sum of the amplitudes of the interfering waves. The interfering waves can be electromagnetic, acoustic, or water waves, or in fact any periodic disturbance.
Industry:Science
The spontaneous loss of water (as vapor) from hydrated crystalline solids. The thermodynamic requirement for efflorescence is that the partial pressure of water vapor at the surface of the solid (its dissociation pressure) exceed the partial pressure of water vapor in the air.
Industry:Science
The skeletal remains (body fossils) or, rarely, the traces of activity (trace fossils) of animals, plants, protistans, and bacteria that can be used to uniquely identify the ages of sedimentary rocks. The term “index fossil” is nearly synonymous with guide fossil or zone fossil.
Industry:Science
The microgravity environment, that is, the condition of weightlessness, offers unique possibilities for the study of thermodynamic phenomena. Some important results have already been obtained, and many more can be expected when the International Space Station becomes operational.
Industry:Science
The practice of utilizing geological principles and applying geological concepts to the discovery and recovery of petroleum. Related fields in petroleum discovery include geochemistry and geophysics. The related areas in petroleum recovery are petroleum and chemical engineering.
Industry:Science
The study of pollen grains and spores, both extant and extinct, as well as other organic microfossils. Although the origin of the discipline dates back to the seventeenth century, when modern pollen was first examined microscopically, the term palynology was not coined until 1944.
Industry:Science
