- 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 simplest member of a class of organic compounds possessing a hydroxyl group attached to a benzene ring or to a more complex aromatic ring system. Phenol itself, C<sub>6</sub>H<sub>5</sub>OH, may also be called hydroxybenzene or carbolic acid. Pure phenol is a colorless solid melting at 42°C (108°F), moderately soluble in water, and weakly acidic (p<i>K</i> 9.9).
Industry:Science
The structural component of an animal skeleton where two or more skeletal elements meet, including the supporting structures within and surrounding it. The relative range of motion between the skeletal elements of a joint depends on the type of material between these elements, the shapes of the contacting surfaces, and the configuration of the supporting structures.
Industry:Science
The pea is one of the oldest cultivated crops. It is a native to western Asia from the Mediterranean Sea to the Himalaya Mountains. It appears to have been carried to Europe as early as the time of the lake dwellers of prehistoric times. Peas were introduced into China from Persia about A.D. 400; they were introduced into the United States in very early Colonial days.
Industry:Science
The study of the chemical changes that occur in the presence of sound or ultrasound. Industrial applications of ultrasound include many physical and chemical effects, for example, cleaning, soldering, welding, dispersion, emulsification, disinfection, pasteurization, extraction, flotation of minerals, degassing of liquids, defoaming, and production of gas-liquid sols.
Industry:Science
The plant <i>Litchi chinensis</i>, also called litchi, a member of the soapberry family (Sapindaceae). It is a native of southern China, where it has been cultivated for more than 2000 years. It is now being grown successfully in India, Republic of South Africa, Hawaii, Burma, Madagascar, West Indies, Brazil, Honduras, Japan, Australia, and the southern United States.
Industry:Science
The study of the properties and relationships between integers and other special types of numbers. There are many sets of positive integers of particular interest, such as the primes and the perfect numbers. Number theory, of ancient and continuing interest for its intrinsic beauty, also plays a crucial role in computer science, particularly in the area of cryptography.
Industry:Science
The production of a concentrated slurry from a dilute suspension of solid particles in a liquid. In practice, a thickener also usually generates a clear liquid; therefore clarification is generally a concurrent process. Thickening and clarification are outcomes of sedimentation, and both are representative of a group of industrial processes termed mechanical separations.
Industry:Science
The role of audio compression or audio coding has become ubiquitous, as most people are exposed to the benefit of audio compression almost every day without even realizing it. Audio compression is used for MP3 players, satellite radio, Internet sites with streaming music, ringtones on mobile devices, digital video disk (DVD) movies, and high-definition television (HDTV).
Industry:Science
The polyacrylonitrile resins are hard, relatively insoluble, and high-melting materials. Polyacrylonitrile (poly(vinyl cyanide)) is used almost entirely in copolymers. The copolymers fall into three groups: fibers, plastics, and rubbers. The presence of acrylonitrile in a polymeric composition tends to increase its resistance to temperature, chemicals, impact, and flexing.
Industry:Science
The study of the Earth's surface features and associated processes. Physical geography aims to explain the geographic patterns of climate, vegetation, soils, hydrology, and landforms, and the physical environments that result from their interactions. Physical geography merges with human geography to provide a synthesis of the complex interactions between nature and society.
Industry:Science
