- 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 process of transferring current from one connection to another within an electric circuit. Depending on the application, commutation is achieved either by mechanical switching or by electronic switching.
Industry:Science
The temperature of the atmosphere represents the average kinetic energy of the molecular motion in a small region, defined in terms of a standard or calibrated thermometer in thermal equilibrium with the air.
Industry:Science
The proposition that the speed of efflux of a liquid from an opening in a reservoir equals the speed that the liquid would acquire if allowed to fall from rest from the surface of the reservoir to the opening.
Industry:Science
The timber produced by temperate, boreal, and tropical forests around the world. Timber is included in a wide variety of industrial and other commodities that are traded in national and international markets.
Industry:Science
The production of an electromotive force either by motion of a conductor through a magnetic field in such a manner as to cut across the magnetic flux or by a change in the magnetic flux that threads a conductor.
Industry:Science
The noxious mixture of gases and particles commonly associated with air pollution in urban areas. Harold Antoine des Voeux is credited with coining the term in 1905 to describe the air pollution in British towns.
Industry:Science
The pH of the acidity or alkalinity of the dispersion medium of a colloidal suspension or an ampholyte at which the solute does not move in an electrophoretic field. The term isoelectric point is abbreviated pI.
Industry:Science
The segment of horticulture concerned with commercial production, marketing and sale of bedding plants, cut flowers, potted flowering plants, foliage plants, flower arrangements, and noncommercial home gardening.
Industry:Science
The number of elementary positive charges (protons) contained within the nucleus of an atom. It is denoted by the letter <i>Z</i>. Correspondingly, it is also the number of planetary electrons in the neutral atom.
Industry:Science
The time required for one-half of a given material to undergo chemical reactions; also, the average time interval required for one-half of any quantity of identical radioactive atoms to undergo radioactive decay.
Industry:Science
