- 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.
By consensus of contemporary scholars, Sarcopterygii is a class of vertebrates that contains the orders Coelacanthiformes (lobefin fishes) and Ceratodoni-formes (lungfishes), as well as the Tetrapoda.
Industry:Science
Fluorescence is generally defined as a luminescence emission that is caused by the flow of some form of energy into the emitting body, this emission ceasing abruptly when the exciting energy is shut off.
Industry:Science
Departure of a celestial body from the trajectory it would follow if moving only under the action of a single central force. Perturbations may be caused by either gravitational or nongravitational forces.
Industry:Science
Forests that occur in continually wet climates with no dry season. There are relatively small areas of temperate rainforests in the Americas and Australasia, but most occur in the tropics and subtropics.
Industry:Science
Compressible flow in which entropy remains constant along streamlines. Generally this implies that entropy is the same everywhere in the flow, in which case the flow is also referred to as homentropic flow.
Industry:Science
Derivatives of organic hydrocarbons having one or more –NO<sub>2</sub> groups bonded via nitrogen to the carbon framework (nitro compounds) or an –NO group attached to carbon or nitrogen (nitroso compounds).
Industry:Science
Element number 65, terbium, Tb, is a very rare metallic element of the rare-earth group. Its atomic weight is 158.924, and the stable isotope <sup>159</sup>Tb makes up 100% of the naturally occurring element.
Industry:Science
Hydrocarbon deposits (oil and gas) are typically trapped in permeable rock formations, often at high temperature and pressure. Present-day production techniques usually recover only 35–40% of the oil in place.
Industry:Science
Any agent capable of causing disease. The term pathogen is usually restricted to living agents, which include viruses, rickettsia, bacteria, fungi, yeasts, protozoa, helminths, and certain insect larval stages.
Industry:Science
Any procedure undertaken to aid in conception, intrauterine development, and birth when natural processes do not function normally. The most common are in vitro fertilization and gamete intrafallopian transfer.
Industry:Science
