- 行业: Printing & publishing
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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.
Electromagnetic geophysical prospecting is performed to minimize the number of expensive drill holes in minerals exploration. In environmental studies, electromagnetic systems are useful in providing information between monitor wells, or in areas where drilling may be environmentally dangerous.
Industry:Science
Human evolution is fundamentally a story of the spread of people and their habitat-altering mode of life throughout the world. A consistent cost of this evolution—specifically of first hunting, then agriculture and domestication—has been the accumulation of a large number of parasitic diseases.
Industry:Science
Density is an important bulk property of any material, and its measurement is very important in many disciplines such as material characterization and quality or process control. Ultrasonic density measurement is an attractive technique for rapid nondestructive evaluation of a material's density.
Industry:Science
Any of numerous devices, units, or surfaces that emit heat, mainly by radiation, to objects in the space in which they are installed. Because their heating is usually radiant, radiators are of necessity exposed to view. They often also heat by conduction to the adjacent thermally circulated air.
Industry:Science
Any system of space heating in which the heat-producing means is a surface that emits heat to the surroundings by radiation rather than by conduction or convection. The surfaces may be radiators such as baseboard radiators or convectors, or they may be the panel surfaces of the space to be heated.
Industry:Science
Conformal optical systems have outer surfaces whose shape is chosen to optimize the interaction with the environment in which the optical system is being used. The imaging through such conformal optical windows is likely to suffer from extreme aberration, requiring special techniques for correction.
Industry:Science
Fundamental laws dealing with currents at junctions and voltages around any loop within a network. These laws are commonly used in the analysis and solution of networks. They may be used directly to solve circuit problems, and they form the basis for network theorems used with more complex networks.
Industry:Science
Dengue fever is a mosquito-borne viral infection throughout the tropical and subtropical zones. The virus exists in four antigenically distinct serotypes or subtypes. Its main natural reservoir is humans, and it is normally transmitted through the bite of infected female <i>Aedes</i> spp. mosquitoes.
Industry:Science
Any use of computer software to solve engineering problems. With the improvement of graphics displays, engineering workstations, and graphics standards, computer-aided engineering (CAE) has come to mean the computer solution of engineering problems with the assistance of interactive computer graphics.
Industry:Science
Genetic factors can shape an individual's personality, and can even cause potentially life-threatening psychiatric disorders. This article discusses a receptor gene that influences the personality trait of novelty seeking, and the genetic factors that are responsible for the onset of bipolar disorder.
Industry:Science
