- 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 name given to two species of mammals which are members of the family Camelidae in the order Artiodactyla. These are the bactrian camel (<i>Camelus bactrianus</i>) and the Arabian or dromedary camel (<i>C. dromedarius</i>). Both species are domesticated, but a few wild herds of bactrian camels are still in existence in the Gobi desert.
Industry:Science
The process or result of the process whereby the amplitude of a carrier wave is changed in accordance with a modulating wave. This broad definition includes applications using sinusoidal carriers, pulse carriers, or any other form of carrier, the amplitude factor of which changes in accordance with the modulating wave in any unique manner.
Industry:Science
The study of the crystalline phases (chemical compounds or pure elements) that make up the Earth and other rocky bodies in the solar system—that is, the terrestrial planets (Mercury, Venus, and Mars), meteorites, asteroids, and planetary satellites. In universities, nearly all mineralogists are found in earth science or geology departments.
Industry:Science
The process by which new species of organisms evolve from preexisting species. It is part of the whole process of organic evolution. The modern period of its study began with the publication of Charles Darwin's and Alfred Russell Wallace's theory of evolution by natural selection in 1858, and Darwin's <i>On the Origin of Species</i> in 1859.
Industry:Science
The slow, flameless combustion of materials by reaction with oxygen; sometimes spelled autooxidation. Autoxidation is important because it is a useful reaction for converting compounds to oxygenated derivatives, and also because it occurs in situations where it is not desired (as in the destructive cracking of the rubber in automobile tires).
Industry:Science
The study of the structural aspects of rocks, as distinct from the purely chemical and mineralogical studies that are generally emphasized in other branches of petrology. The term was originally used synonymously with petrofabric analysis, but is sometimes restricted to denote the analysis of only microscopic structural and textural features.
Industry:Science
The study of the flow of energy within an ecological system from the time the energy enters the living system until it is ultimately degraded to heat and irretrievably lost from the system. It is also referred to as production ecology, because ecologists use the word production to describe the process of energy input and storage in ecosystems.
Industry:Science
The locus of points in the euclidean plane that satisfy some geometric or algebraic definition. Not all sets of points deserve to be called a curve, but the distinction is somewhat arbitrary. For most of this article, a curve is considered to be the locus of a set of points that satisfy an algebraic or transcendental equation in two variables.
Industry:Science
The measurement of reaction rates for the analytical determination of the initial concentrations of the species of interest taking part in chemical reactions. This technique can be used since, in most cases, the rates or velocities of chemical reactions are directly proportional to the concentrations of the species taking part in the reactions.
Industry:Science
The principal fuels used in internal combustion engines (automobiles, diesel, and turbojet) and in the furnaces of stationary power plants are organic fossil fuels. These fuels, and others derived from them by various refining and separation processes, are found in the earth in the solid (coal), liquid (petroleum), and gas (natural gas) phases.
Industry:Science
