- 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.
A construction material usually made of clay and extruded or molded as a rectangular block. Three types of clay are used in the manufacture of bricks: surface clay, fire clay, and shale. Adobe brick is a sun-dried molded mix of clay, straw, and water, manufactured mainly in Mexico and some southern regions of the United States.
Industry:Science
A contagious zoonosis affecting primarily horses, mules, and donkeys and caused by the bacterium <i>Burkholderia</i> (<i>Pseudomonas</i>) <i>mallei</i>. Glanders primarily involves the respiratory systems, skin, and lymphatics. It is marked by a purulent inflammation of mucous membranes and an eruption of nodules on the skin, forming deep ulcers. Glanders was once common throughout the world but is now found only in the Mideast and parts of Africa, Russia, Asia, and South America. <i>Burkholderia mallei</i> is a gram-negative, non-acid-fast, nonsporulating, nonmotile, unencapsulated bacillus occasionally showing bipolar staining; it is obligately aerobic and oxidase-positive. It is closely related to <i>B. pseudomallei</i>, the cause of melioidosis, a disease of humans and animals in Southeast Asia and northern Australia. <i>Burkholderia mallei</i> is highly infectious for humans, who may acquire it by handling or treating glanderous animals or during laboratory investigations. Untreated acute disease in humans has a 95% mortality rate within 3 weeks. There is no vaccine against infection. <i>Burkholderia mallei</i> is considered a category B biological agent because it is moderately easy to disseminate, causes moderate morbidity with high mortality in untreated cases, and requires special enhanced laboratory diagnostic capability.
Industry:Science
A container designed to store liquids at or near atmospheric pressures. When the container is used to store a solid or granular material, it is called a storage bin or silo.
Industry:Science
A continent that straddles the Equator, extending between 37<sup>°</sup>N and 35<sup>°</sup>S. It is the second largest continent, exceeded by Eurasia. The area, shared by 55 countries, is 11,700,000 mi<sup>2</sup> (30,300,000 km<sup>2</sup>), approximately 20% of the world's total land area. Despite its large area, it has a simple geological structure, a compact shape with a smooth outline, and a symmetrical distribution of climate and vegetation.
Industry:Science
A continuous pneumatic rubber and fabric cushion encircling and fitting onto the rim of a wheel. Sizes range from only a few inches in diameter up to 12 ft (3.7 m) and 12,500 lb (5700 kg).
Industry:Science
A continuous, moving stairway that transports passengers between two levels. Most escalators are installed to service floors less than 20 ft (6 m) apart, but some escalators have been constructed to rise 100 ft (30 m) or more between floors.
Industry:Science
A contribution to the heat capacity of a solid arising from the thermal population of discrete energy levels as the temperature is raised. The effect is particularly prominent at low temperatures, where other contributions to the heat capacity are generally small.
Industry:Science
A control device designed to maintain the value of some quantity substantially constant. Thus, a temperature regulator is a device designed to maintain the temperature of some environment at a constant value. The value to be maintained can usually be established at any value within the range of the regulator by making an appropriate setting.
Industry:Science
A control system in which the issuing of the control command and its execution are separated by a relatively significant distance. The system normally includes a command device where the control command is entered, and an actuator that executes it. These are connected by a transmission medium that transmits the command, usually in a coded format.
Industry:Science
A control system involves a plant and a controller. Plants are objects as diverse as a satellite, a distillation column, a robot arm, and a colony of bacteria. After measuring actual outputs of the plant, the controller computes signals that are applied at the inputs to the plant to achieve desired outputs. The design of controllers must be based upon mathematical models of plants, which are in most realistic situations composed of nonlinear differential and difference equations. A standard approach is to linearize the equations and use the powerful methods available for the design of linear control systems.
Industry:Science
