- 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.
For economic production of stainless steel, high-carbon (5–8%) ferrochrome and scrap are charged into the melting furnace. After melting, the carbon must be removed to prevent intergranular free corrosion (due to a fall in the free chrome content below the critical content, needed for corrosion resistance). In the conventional production process this removal is achieved by blowing oxygen into the furnace. The steel must be raised to a very high temperature in order to achieve the required low-carbon (<0.03%) content.
Industry:Science
At the high pressures and temperatures found in the Earth's mantle, rock responds to stress by slow, creeping flow. The mantle, although solid, is a dynamic system. Convection is driven by density variations primarily caused by temperature variations and possibly also by compositional variations. Hot, relatively low-density material wells up to the surface, and cold, higher-density material plunges into the interior. This phenomenon influences the Earth's surface processes and drives the motion of the tectonic plates.
Industry:Science
Finely divided rock-derived material containing an admixture of organic matter and capable of supporting vegetation. Soils are independent natural bodies, each with a unique morphology resulting from a particular combination of climate, living plants and animals, parent rock materials, relief, the ground waters, and age. Soils support plants, occupy large portions of the Earth's surface, and have shape, area, breadth, width, and depth. (However, the term “soil” as used by engineers means unconsolidated rock material.)
Industry:Science
Flow of gases below standard atmospheric pressure, sometimes called low-pressure gas flow. The flow may be confined to pipes between a chamber or vessel to be evacuated and a pump, or it may be the beam of molecules issuing from an orifice into a large evacuated chamber or the plume of exhaust gases from a rocket launched into the upper atmosphere, for example. The flow velocity is measured with respect to a fixed boundary such as the wall of a pipe, the surface of a rocket or jet plane, or a model in a wind tunnel.
Industry:Science
Digital presses are used to reproduce documents through the process of toner-based electrophotography, a technology inherent in the common desktop laser printer. Digital press equipment varies greatly in terms of production speed, numbers of colors possible, quality levels obtainable, and sophistication of in-line finishing. In recent years there has been a rapid growth in the usage of this type of reproduction equipment, and in some cases digital presses are replacing the traditional offset lithographic printing press.
Industry:Science
Forces which are derived from moving loads such as wind, earthquakes, machinery, vehicles, trains, cranes, and hoists. Analysis techniques which take into account the vibrations of the structures are required for loads which are repeated many times, such as machinery in motion, and produce harmonic motions of equal amplitude and constant frequency (cyclic loading); loads such as the motion produced by earthquakes (random motion); and varied loads, such as that of the wind, which produce gusts or short-duration impulses.
Industry:Science
Cyclic motions of the Earth, sometimes over a foot or so in height, depending on latitude, caused by the same lunar and solar forces which produce tides in the sea. These forces also react on the Moon and Sun, and thus are significant in astronomy in evaluations of the dynamics of the three bodies. For example, the secular spin-down of the Earth due to lunar tidal torques is best computed from the observed acceleration of the Moon's orbital velocity. In oceanography, earth tides and ocean tides are very closely related.
Industry:Science
Human error in medicine contributes to adverse events that threaten patient safety. Certain errors tend to recur across adverse events in health care, reflecting unmet perceptual, cognitive, and behavioral needs as users interact with systems to accomplish patient care goals. For example, slips such as overdosing patients result from inputting the wrong number into infusion pumps or misreading medication orders because critical information is not highlighted or similar symbols are confused on the interface or in the order.
Industry:Science
Application of science and invention to the development and construction of machines. An understanding of the basic laws of nature is essential to a proper perspective in the approach to machine design. Knowledge of the past development of machine elements makes possible their effective application. Inventiveness consists of producing new combinations of old elements or, where extreme need arises, of exercising genius either in breaking the bounds of convention, or in evolving new principles not hitherto applied or known.
Industry:Science
Cat scratch disease in humans is typically a benign, subacute regional disease of the lymph nodes (lymphadenopathy) resulting from dermal inoculation of the causative agent. This agent has been demonstrated to be <i>Bartonella</i> (formerly <i>Rochalimaea</i>) <i>henselae</i>, a bacterium that has been isolated from immunocompromised patients with bacillary angiomatosis, a distinctive and potentially deadly vascular proliferative host response in skin, bone, or other organs associated with the presence of clumps of bacteria.
Industry:Science
