- 行业: Printing & publishing
- Number of terms: 178089
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- 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 ability of a solid body to permanently change shape (deform) in response to mechanical loads or forces. Deformation characteristics are dependent on the material from which a body is made, as well as the magnitude and type of the imposed forces. In addition to plastic, other types of deformation are possible for solid materials.
Industry:Science
The art of preparing objects for examination under the microscope and of preserving objects so prepared. Few objects yield useful information if examined without such preparation, which may involve, in addition to preliminary preservation, hardening, rendering transparent, selective coloration of parts, and cutting into thin slices.
Industry:Science
The change in the frequency of a wave observed at a receiver whenever the source or the receiver is moving relative to each other or to the carrier of the wave (the medium). The effect was predicted in 1842 by C. Doppler, and first verified for soundwaves by C. H. D. Buys-Ballot in 1845 from experiments conducted on a moving train.
Industry:Science
The largest class of the subphylum Chelicerata in the phylum Arthropoda. Most familiar of the included orders are the spiders, scorpions, harvestmen, and mites and ticks. Arachnids are mainly terrestrial and may be the oldest of the Recent terrestrial animals; scorpions are known from the Silurian (over 4×10<sup>8</sup> years ago).
Industry:Science
Strongly interacting composite particle that accounts for almost all of the visible mass of the universe. The proton and neutron that make up the atomic nucleus are examples of baryons. Strongly interacting particles (hadrons) are either baryons, which are fermions with half-integral spin, or mesons, which are bosons with integer spin.
Industry:Science
The combining power of a chemical element for other elements as measured by the number of bonds to other atoms that one atom of the given element forms upon chemical combination; also known as valency. Valence theory concerns all the physical and chemical properties of molecules that especially depend on molecular electronic structure.
Industry:Science
The explosion of genetic research within the last 10–15 years has brought the concept of race back into prominence. One might think that, because the concept of race originated as a social proxy for the description of biological differences, at least biologists studying race would agree on its definition. However, this is not the case.
Industry:Science
That property of an electric circuit or of two neighboring circuits whereby an electromotive force is induced (by the process of electromagnetic induction) in one of the circuits by a change of current in either of them. The term inductance coil is sometimes used as a synonym for inductor, a device possessing the property of inductance.
Industry:Science
Supernova 1987A (SN1987A) is the brightest supernova to be observed since Johannes Kepler observed a supernova in 1604 and the first to be observed in every band of the electromagnetic spectrum. It was first detected on February 24, 1987, at 0530 Universal Time in the Large Magellanic Cloud near the bright star-forming nebula 30 Doradus.
Industry:Science
The branch of climatology concerned with urban areas. These locales produce significant changes in the surface of the Earth and the quality of the air. In turn, surface climate in the vicinity of urban sites is altered. The era of urbanization on a worldwide scale has been accompanied by unintentional, measurable changes in city climate.
Industry:Science
