- 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.
Behavior patterns in which an animal actively defends a space or some other resource. One major advantage of territoriality is that it gives the territory holder exclusive access to the defended resource, which is generally associated with feeding, breeding, or shelter from predators or climatic forces.
Industry:Science
Conveyance of fluids in closed circular ducts. Pipes have been used for thousands of years, but the understanding of the flow details (velocity profile and flow rate) came about during the twentieth century. Equations that accurately predict energy losses have been in use since the midnineteenth century.
Industry:Science
Gardens for the culture of plants collected chiefly for scientific and educational purposes. Such a garden is more properly called a botanical institution, in which the outdoor garden is but one portion of an organization including the greenhouse, the herbarium, the library, and the research laboratory.
Industry:Science
Drugs derived from opium, the dried juice of the oriental poppy seed. The pharmacologically active substances, which constitute approximately 25% of the extract, are the alkaloids morphine, codeine, and papaverine. The newer synthetic compounds, which resemble morphine in their action, are called opioids.
Industry:Science
Arrangements of communications channels, suitable for transmission of video and accompanying audio signals, which link together groups of television broadcasting stations or closed-circuit television users in different cities so that programs originating at one point can be fed simultaneously to all others.
Industry:Science
Combinations of silver with one or more other metals. Pure silver is very soft and ductile but can be hardened by alloying. Copper is the favorite hardener and normally is employed in the production of sterling silver, which must contain a minimum of 92.5% silver, and also in the production of coin silver.
Industry:Science
Devices that measure or estimate properties of the Earth's atmosphere. Meteorological instruments take many forms, from simple mercury thermometers and barometers to complex observing systems that remotely sense winds, thermodynamic properties, and chemical constituents over large volumes of the atmosphere.
Industry:Science
Chitin-encapsulated bodies, resistant to freezing and a limited amount of desiccation. They serve as a special means of asexual reproduction in the Phylactolaemata, a class of fresh-water Bryozoa. They are 0.01–0.06 in. (0.26–1.5 mm) long, and their shape and structure are important to the taxonomy of the group.
Industry:Science
Deformable material used to make a pressure-tight joint between stationary parts, such as cylinder head and cylinder, that may require occasional separation. Gaskets are known as static seals, as compared with packing or dynamic seals. In packings the parts are frequently in motion, as in piston rods and valve stems.
Industry:Science
Depositional systems are descriptions of the interrelationships of form and the physical, chemical, or biological processes involved in the development of stratigraphic sequences. Depositional environments are the locations where accumulations of sediment have been deposited by either mechanical or chemical processes.
Industry:Science
