- 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.
That branch of physical chemistry which seeks to explain time-dependent phenomena, such as energy transfer and chemical reaction, in terms of the detailed motion of the nuclei and electrons which constitute the system.
Industry:Science
The deeply penetrating ability of x-rays and their short wavelength, comparable to atomic size, makes them an ideal probe for structural characterization of materials. In addition, many elemental absorption edges are located in the x-ray part of the electromagnetic spectrum. As such, x-rays are especially useful for a variety of spectroscopic measurements, providing chemical or elemental specificity, and sensitivity to orbital and magnetic ordering.
Industry:Science
The fourth planet outward from the Sun. Mars is the planet most like Earth in terms of geology, climate, and suitability for life. It is also the world that has been most thoroughly studied by interplanetary spacecraft.
Industry:Science
The force acting in the surface of a liquid, tending to minimize the area of the surface. Surface forces, or more generally, interfacial forces, govern such phenomena as the wetting or nonwetting of solids by liquids, the capillary rise of liquids in fine tubes and wicks, and the curvature of free-liquid surfaces. The action of detergents and antifrothing agents, and the flotation separation of minerals depend upon the surface tensions of liquids.
Industry:Science
The dimension of the physical universe that orders the sequence of events at a given place; also, a designated instant in this sequence, such as the time of day, technically known as an epoch, or sometimes as an instant.
Industry:Science
The branch of extractive metallurgy in which processes employing chemical reactions at elevated temperatures are used to extract and refine nonferrous metals from ores, concentrates, and recycled materials. The entire process from feed to finished metal may be pyrometallurgical, or a pyrometallurgical step may be used in conjunction with other technologies. Increasingly, a mix of processes maximizes the efficiency and advantages of an overall operation.
Industry:Science
The branch of biomedical science concerned with the embryology, development, and structure of the teeth, jaws, oral cavity, and adjacent structures, and with the prevention, diagnosis, and treatment of their abnormalities.
Industry:Science
The de Broglie wavelength associated with the center-of-mass motion of free atoms is usually so short that the atoms move like classical particles. However, if a gas is cooled to such a low temperature that the wavelength becomes comparable to the distance between atoms, quantum-mechanical features become important. If the total spin of the atom is an integer, the gas can undergo the quantum-mechanical phase transition known as Bose-Einstein condensation.
Industry:Science
The basic building blocks used to realize consumer and industrial products that incorporate digital electronics. Such products include digital computers, video games, voice synthesizers, pocket calculators, and robot controls.
Industry:Science
The first member of the homologous series of alkanols, with the formula CH<sub>3</sub>OH. This compound was originally obtained by the destructive distillation of wood as a by-product in the preparation of charcoal, hence the older name wood alcohol. Methanol is a highly flammable liquid, boiling point 64.7°C (149°F), and is miscible with water and most organic liquids. It is a highly poisonous substance; sublethal amounts can cause permanent blindness.
Industry:Science
