stagingspace flight
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major references ( in launch vehicle: Stages
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A basic approach to launch vehicle design, first suggested by Konstantin Tsiolkovsky, is to divide the vehicle into “stages.” The first stage is the heaviest part of the vehicle and has the largest rocket engines, the largest fuel and oxidizer tanks, and the highest thrust; its task is to impart the initial thrust needed to overcome Earth’s gravity and thus to lift the total weight...
in spaceflight: Staging )Because it is very difficult to achieve the high speed required to achieve orbit, launch vehicles need several stages to reach that speed. The technique of staging uses two or more rocket systems mounted in linear sequence. Initially, the rearmost, or first, stage is ignited, and it (sometimes assisted by attached booster rockets) lifts the vehicle at increasing velocity until its propellants...
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major reference theatre
...church were to continue throughout the Middle Ages. Apart from the mansions there was a general acting area, called a platea, playne, or place. The methods of staging from these first liturgical dramas to the 16th-century interludes can be divided into six main types. The first involved the use of the church building as a theatre. In the beginning, for...
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contribution by Torelli Torelli, Giacomo
Italian stage designer and engineer whose innovative theatre machinery provided the basis for many modern stage devices.
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history of theatrical production theatre
The earliest productions did not have a background building. The actors dressed in the skēnē (from which the word “scene” is derived), which was then a small tent, and the chorus and actors entered together from the main approach, the parodos. The earliest properties,...
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river ice ice in lakes and rivers
...upstream, thus reducing the velocity and enabling further upstream progression to occur where previously the current velocity was too high to allow ice cover formation. This phenomenon is termed staging, by reference to its effect of increasing the water level, or “stage.” In the process there is a storage of water in the increased depth of the flow upstream, and this somewhat...
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steam turbines turbine
...to permit efficient conversion of the thermal energy in the steam to mechanical energy. In modern turbines, three types of staging are employed, either separately or in combination: (1) pressure (or impulse) staging, (2) reaction staging, and (3) velocity-compound staging.
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function in steam turbines turbine
Only a small fraction of the overall pressure drop available in a turbine can be extracted in a single stage consisting of a set of stationary nozzles or vanes and moving blades or buckets. In contrast to water turbines where the total head is extracted in a single runner (see above), the steam velocities obtained from the enthalpy drop between steam generator and condenser would be...
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steam turbine design turbine
Pressure staging uses a number of sequential impulse stages similar to those illustrated in Figure 1, except that the stationary passages also become highly curved nozzles. Pressure-staged turbines can range in power capacity from a few to more than 1.3 million kilowatts. Some manufacturers prefer to build units with impulse stages simply to reduce thrust-bearing loads. Such units may have as...
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