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CRYOGENICS AND ITS SPACE APPLICATIONS full report


Posted by: project report tiger
Created at: Monday 15th of February 2010 08:04:22 AM
Last Edited Or Replied at :Sunday 21st of March 2010 03:24:18 AM
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Unfortunately, such helium liquefiers are much bigger than the space available for the entire XRS instrument. So we had to concentrate on making the helium evaporate as slowly as possible.
Working of the XRS
The detectors in XRS are X-ray micro calorimeters. They work by monitoring the temperature of a tiny piece of silicon, and measuring the temperature rise that result when it absorbs an X-ray photon.
You might imagine that measuring the temperature rise from a single photon is fairly difficult, and you'd be right! Briefly, here is how it is done:
¢ First, the X-rays must be focused..................[:=> Show Contents <=:]



composite materials for aerospace applications ppt


Posted by: chinna518
Created at: Monday 01st of March 2010 10:41:47 AM
Last Edited Or Replied at :Sunday 28th of March 2010 04:09:44 PM
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send me this topic ppt..................[:=> Show Contents <=:]



composite materials for aerospace applications ppt


Posted by: sri.2988
Created at: Thursday 25th of February 2010 06:12:22 AM
Last Edited Or Replied at :Wednesday 04th of May 2011 05:17:45 AM
polymers in aerospace application, composite in aerospace application , composites in aerospace application, aerospace application with natural fiber , ppg aerospace application support center, courtaulds aerospace application support center , aerospace application of piezoelectric sensors, aerospace application of powder metallurgy , aerospace application of nanocomposites, aerospace application of cfd , aerospace application of gun launched projectiles and rockets, aerospace application adhesive technology , hm, composite ppt , abstract for composites in aerospace, composite materials in aviation ppt , composite materials ppt, application of metals in aerospace ppt , materials for aerospace applications, ppt on materials for aerospace applications , composite materials for aerospace applications ppt, composite materials for aerospace applications , ppt on composite materials applications, aterials for aero space apllication , powerpoint presentation composites materials in aeronautics, aerospace materials ppt , composites in aerospace industry ppt, application of composite materials ppt , ppt for composite materials, application of composites ppt , aerospace ppt presentation,
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CRYOGENICS AND ITS SPACE APPLICATIONS full report


Posted by: project report tiger
Created at: Monday 15th of February 2010 08:04:22 AM
Last Edited Or Replied at :Sunday 21st of March 2010 03:24:18 AM
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t, say 60 milli-Kelvin) and the mechanical cooler (at 6 to 8 Kelvin.) Each standard ADR would have a relatively small temperature drop across it, and thus would be able to remain cold for a long time.
Schematic
Here is a schematic diagram of one possible advanced ADR. The ADR shown has 3 salt pills, a hot end salt pill, a cold end salt pill, and a middle salt pill. Each salt pill has its own magnet, which controls the temperature in that pill. Between the salt pills are heat switches and Kevlar supports. The upper two magnets in this design are shown surrounded by
magnetic shielding, to ..................[:=> Show Contents <=:]



Microphotonics for Space Application full report


Posted by: project reporter
Created at: Monday 01st of February 2010 01:25:34 AM
Last Edited Or Replied at :Friday 04th of June 2010 04:06:00 AM
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rder PBG WDM filters operating in transmission.
Tunable gratings for external cavity DFB laser diodes.
Biochemical sensors.
Temperature sensors.
PBG/Waveguide/MEMS integration Optical accelerometers.
Configurable PBG structures.
Optical switches for programmable add/drop, reconfiburable repeaters and programmable time-delay lines.
Wavelength-selective optical switches.
Polarization selective optical splitters and switches.
T-bar Machzender interferrometer Optical modulator.
Radiation sensor.
Variable optical attenuator.
Chemical and biochemical sensors.
VOn structures High-speed o..................[:=> Show Contents <=:]



METALLURGICAL CHANGES IN STEELS DUE TO CRYOGENIC PROCESSING ITS APPLICATIONS


Posted by: computer science technology
Created at: Sunday 24th of January 2010 11:20:47 AM
Last Edited Or Replied at :Sunday 24th of January 2010 11:20:47 AM
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3. Valves stems wear less.
14. Valve guides wear less.
15. Valve springs lose less spring constant.
16. Valve spring fatigue life is greatly improved.
17. Cylinder heads can be run at higher levels of detonation.
18. Camshaft wear is diminished.
19. Cam shafts breakage is reduced.
20. Timing gears wear less.
21. Timing chains wear less and stretch less.
22. Rocker arms breakage is reduced.
23. Push rods do not flex as much.
24. Head bolts do not relax, and maintain their torque.
25. Bearing caps maintain their alignment; distortion is reduced. Cap bolts do not stretch..................[:=> Show Contents <=:]



Composites materials for aerospace applications full report


Posted by: computer science technology
Created at: Sunday 24th of January 2010 07:49:09 AM
Last Edited Or Replied at :Sunday 24th of January 2010 07:49:09 AM
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lian)
6. Advances in materials for composites
6.1 Reinforcements
The carbon fibre technology continues to improve harnessing the versatility of carbon fibre and new varieties in terms of better combinations of modulus and strength are becoming available. The developments seem to be in two directions: one, for aircraft applications, is aimed basically at higher strength (>5 GPa) with concurrent improvements in modulus to a moderate level (>300 GPa) and the other, for space applications, is aimed at high modulus (>500 GPa) with moderate strength (3.5 GPa). The higher failure strain for the..................[:=> Show Contents <=:]



CRYOGENICS


Posted by: seminar projects crazy
Created at: Friday 30th of January 2009 12:58:28 PM
Last Edited Or Replied at :Saturday 08th of December 2012 03:28:21 AM
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ng icy cold. Phenomena that occurs at cryogenic temperatures include liquefaction and solidification of ambient gases; loss of ductility and embrittlement of some structural materials such as carbon steel; increase in thermal conductivity to a maximum value, followed by further decrease in temperature. Cryogenics is the low temperature (150 K) refrigeration. It explains the properties of cryogens used and their principles. Storage methods and handling techniques are covered. Cryogenics are applied in different fields of production, transportation, medicine, aerospace, physics research etc. Roc..................[:=> Show Contents <=:]



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