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The Dynamic Response Index ( DRI) is a measure of the likelihood of spinal damage arising from a vertical shock load such as might be encountered in a military environment (i.e., during a mine blast, or in an ejection seat). The DRI is a dimensionless number which is proportional to the maximum spinal compression suffered during the event.
The efficiency of an engine is defined as ratio of the useful work done to the heat provided. where, is the heat absorbed and is the work done. Please note that the term work done relates to the power delivered at the clutch or at the driveshaft . This means the friction and other losses are subtracted from the work done by thermodynamic expansion.
Toyota Corolla (E140) The Toyota Corolla (E140/E150) is the tenth generation of cars marketed by Toyota under the Corolla nameplate. The Toyota Auris replaced the Corolla hatchback in Japan and Europe, but remained badged as a "Corolla" in Australia and New Zealand. The chassis of the E140 is based on the Toyota MC platform, with the E150 model ...
A heat engine is a system that converts heat to usable energy, particularly mechanical energy, which can then be used to do mechanical work. While originally conceived in the context of mechanical energy, the concept of the heat engine has been applied to various other kinds of energy, particularly electrical, since at least the late 19th century.
The S&P 500 index is weighted based on the market value of the companies in the index, which means the most valuable companies account for the largest percentage of the index.
Thrust-specific fuel consumption ( TSFC) is the fuel efficiency of an engine design with respect to thrust output. TSFC may also be thought of as fuel consumption (grams/second) per unit of thrust (newtons, or N), hence thrust-specific. This figure is inversely proportional to specific impulse, which is the amount of thrust produced per unit ...
The National Weather Service's Climate Prediction Center reported new data on June 14 suggesting it might be, predicting a 60% to 70% chance that temperatures will be above normal June 29 through ...
The High Value engine family from General Motors is a group of cam-in-block or overhead valve V6 engines.These engines feature cast iron blocks and aluminum heads, and use the same 60° vee bank as the 60° V6 family they are based on, but the new 99 mm (3.90 in) bore required offsetting the bores by 1.5 mm (0.059 in) away from the engine center line.