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  Encyclopedia of Keywords > Compressor > Expander   Michael Charnine

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  1. Expander is a proof and test environment for algebraic data type specifications and functional-logic programs. (Web site)
  2. An expander is a device that painlessly spreads the halves of the upper jaw apart.
  3. An expander is a type of orthodontic appliance that connects to 2 to 4 of the top back teeth and will be placed over the roof of the patient's mouth.
  4. The expander is a reciprocating device with valves to control the admission of hot compressed air and the exhaust of the cooler expanded air.
  5. The expander is identical to the expander of an Afterburning Ericsson Cycle engine that has been simplified by removing the heat exchanger passages.

Expander Cylinder

  1. Both "A" expander valves are closed and the piston is moving toward BDC to expand air in the expander cylinder.

Palate Expander

  1. My older daughter had quite a bit of orthodontia over several years (palate expander and braces) and I have never had dental insurance.

Palatal Expander

  1. The palatal expander "expands" (widens) your upper jaw by putting gentle pressure on your upper molars each time the expander is activated. (Web site)


  1. Palatal expander: This plastic plate is fixed by screws over the roof of the mouth. (Web site)


  1. The expander remains in the mouth for about 3 more months to allow the bone to harden in its new position. (Web site)

Exhaust Valve

  1. While expander A is on the downstroke, expander B has been on the upstroke and exhausting through the expander B exhaust valve.

Compressor 26

  1. The air conditioning system 24 is an air-cycle system or open Brayton refrigeration cycle system having a compressor 26, intercooler 28 and expander 30. (Web site)


  1. Usually a beam expander or collimator is used to expand and parallel the beam, the spot size out of the collimator is several millimeters. (Web site)
  2. Position the attenuator, beam expander, and shutter on a single line between mirror M1 and the laser. (Web site)
  3. After the expander lens, the beam diverges rapidly until it enters a second focusing objective lens.


  1. FIG. 18 shows the expander piston at bottom dead center and the compressor piston still on the intake stroke.
  2. FIG. 14 shows the expander piston at top dead center with the compressor just starting to expel compressed air.
  3. FIG. 2 is a flow diagram of an expander cycle rocket engine that incorporates the nozzle shown in FIG. 1. (Web site)


  1. Brush your expander at least twice a day with a toothbrush and toothpaste.


  1. Reverse headgear can be used in conjunction with other appliances such as an expander or braces. (Web site)
  2. Orthodontic headgear is a type of orthodontic appliance attached to dental braces or a palatal expander that aids in correcting severe bite problems. (Web site)
  3. The use of an arch expander will generally minimize or eliminate the need for braces when the patient gets older.


  1. Your orthodontist will instruct you about when and how to adjust your expander.
  2. Palatal Expander A device used to make your jaw wider Retainer A gadget that the orthodontist gives you to wear after the orthodntist removes your braces. (Web site)


  1. Expanding the hot compressed gas in the expander produces the gross mechanical work of the bottom cycle engine.
  2. Ambient air is compressed by a compressor and then heated in a regenerator before, expanding in an expander.
  3. The expander may comprise a diverging lens and a converging lens for expanding the beam to produce a collimated beam.

Permanent Teeth

  1. Phase I, or early interceptive treatment, is limited orthodontic treatment (e.g., expander or partial braces) before all of the permanent teeth have erupted.
  2. Many times an arch expander can be used to create a proper alignment of the arches so permanent teeth have room to erupt in a natural position.


  1. The "B" pistons have moved farther away from TDC. The "B" expander valves are closed and air is expanding in the "B" expander.
  2. The intercooler 28 removes heat from the air and supplies pressurized cooler air to the expander 30 as indicated by arrow 38. (Web site)
  3. Otherwise, some of the work done to pressurize the air becomes wasted because it is not available to push down the expander piston.


  1. The expander removes work from the air by reducing its pressure, and provides the cold air to a mixing chamber defined by the plenum. (Web site)
  2. The plenum is positioned proximate the compressor 26 and expander 30, and preferably vertically above the compressor 26 and the expander 30. (Web site)


  1. After 20 months of Phase I treatment with an expander and partial braces, patient's appearance and dental function was vastly improved. (Web site)
  2. Phase I (early interceptive) treatment, is limited orthodontic treatment (ex: expander or partial braces) before all the permanent teeth erupt. (Web site)


  1. Dextran is known for its use as a blood plasma substitute or expander, and particularly for its use in this regard for cell separations. (Web site)
  2. Dextran is known for its use as a plasma expander used for cell separation, but is used for a different purpose in the ESR control of the present invention. (Web site)


  1. Remove your expander only to brush your teeth.
  2. The palatal expander consists of a screw that is attached to the teeth by means of bands that go around your teeth. (Web site)


  1. With more than one tooth in crossbite, correction generally requires the use of an expander in conjunction with limited bracework.
  2. If multiple teeth are in crossbite, palate expander is normally required. (Web site)

Valves Closed

  1. FIG. 24 shows the compressor after its exhaust valve opens and the expander piston still moving downward with all valves closed.

Bottom Dead Center

  1. Expander B is at bottom dead center (BDC) with the expander B valves closed and compressor B is filling through the compressor B inlet valve.
  2. FIG. 25 shows the compressor piston at top dead center and the expander piston at bottom dead center with all valves closed.
  3. FIG. 19 shows the compressor piston at bottom dead center and the expander piston on the exhaust stroke with the expander exhaust valve open.


  1. The expander and compressor preferably have an efficiency of at least 85%, and are preferably screw-type machines. (Web site)
  2. Preferably, both the compressor 26 and expander 30 are screw rotor devices having an efficiency of at least 85%. (Web site)

Electric Motor

  1. The electric motor may directly drive one of the compressor and expander by an integral combination of the drive shafts. (Web site)
  2. Alternatively, a belt and pulley system may be utilized to link the expander and compressor to the electric motor. (Web site)


  1. In another embodiment, the air conditioning system includes a compressor, an intercooler and an expander operating as noted above. (Web site)


  1. The air conditioning system preferably forms a cartridge defined by a housing enclosing the compressor, intercooler and expander. (Web site)
  2. At this point the compressor is filling and the air in the expander is undergoing an approximately isentropic expansion from the pressure at FIG. 15.
  3. Cranking the engine starts air to flow from the compressor 1 to the expander 2 and then into the afterburner assembly 10.


  1. FIG. 21 shows the compressor piston at bottom dead center and the expander at top dead center with all valves closed.
  2. FIG. 13 shows the start position with the expander A piston at top dead center (TDC) and all expander A valves closed.
  3. FIG. 20 shows the compressor compressing the air prior to its exhaust valve opening and the expander just finishing the exhaust stroke.


  1. Compressor
  2. Intercooler
  3. Encyclopedia of Finance. > Technology > Engines > Electric Motor
  4. Bottom Dead Center
  5. Air Conditioning System
  6. Books about "Expander" in

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  Short phrases about "Expander"
  Originally created: April 04, 2011.
  Links checked: January 29, 2013.
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