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Your search keyword '"Roth, Eric"' showing total 12 results
Start Over Author "Roth, Eric" Publication Type Conference Materials
12 results on '"Roth, Eric"'

2. Chromatin Reprogramming via Contact Guidance-Induced Nuclear Deformation Promotes Stem Cell Differentiation

Author

Agrawal, Vasundhara, primary, Wang, Xinlong, additional, Li, Yue, additional, Virk, Ranya K.A., additional, Patel, Priyam A., additional, Jain, Surbhi, additional, Rivera-Bolanos, Nancy, additional, Frederick, Jane, additional, Roth, Eric, additional, Bleher, Reiner, additional, Duan, Chongwen, additional, Jiang, Bin, additional, Ntziachristos, Panagiotis, additional, Backman, Vadim, additional, and Ameer, Guillermo A., additional

Published
2021
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10. DEVELOPMENT OF A 4.5 K PULSE TUBE CRYOCOOLER FOR SUPERCONDUCTING ELECTRONICS

Author

Nast, Ted, primary, Olson, Jeff, additional, Champagne, Patrick, additional, Mix, Jack, additional, Evtimov, Bobby, additional, Roth, Eric, additional, Collaco, Andre, additional, Weisend, J. G., additional, Barclay, John, additional, Breon, Susan, additional, Demko, Jonathan, additional, DiPirro, Michael, additional, Kelley, J. Patrick, additional, Kittel, Peter, additional, Klebaner, Arkadiy, additional, Zeller, Al, additional, Zagarola, Mark, additional, Van Sciver, Steven, additional, Rowe, Andrew, additional, Pfotenhauer, John, additional, Peterson, Tom, additional, and Lock, Jennifer, additional

Published
2008
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11. Very high capacity aerospace cryocooler.

Author

Olson, Jeffrey, Champagne, Patrick, Roth, Eric, and Nast, Ted

Subjects
AEROSPACE engineering, LOW temperature engineering, ENERGY storage, HEAT exchangers, COOLING, SURFACES (Technology)
Abstract

Long-term cryogenic propellant storage requires mechanical cryocoolers to maintainzero or very low cryogen boil-off rates. Very large cryogen tanks such as those proposedfor orbital fuel depots may require cryocoolers with very high cooling capacity. In-situresource generation and storage of oxygen and methane on Mars also requires highcapacity cryocoolers, and low mass is extremely desirable for planetary missions becauseof the cost associated with landing mass on the surface of another planet. LockheedMartin's Advanced Technology Center has developed a high capacity low mass aerospacecryocooler with very high power density. This 7 kg pulse tube cryocooler can provide20 W of cooling at 70 K while rejecting heat at 300 K. This large cooling capability couldalso be used to cool large optical structures or other devices with high heat loads. Testingof the cooler with a secondary heat exchanger attached to the pulse tube was alsoconducted, and results are discussed. [ABSTRACT FROM AUTHOR]

Published
2012
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12. Cooling the GIFTS FPA: Summary and Analysis of Engineering Test Results Performed at SDL Using the Lockheed Martin Two-stage Cryocooler.

Author

Jensen, Scott M., Hansen, Glen, Nast, Ted, and Roth, Eric

Subjects
FOURIER transform infrared spectroscopy, ATMOSPHERIC water vapor, HEAT pipes, REFRIGERATION & refrigerating machinery
Abstract

The Space Dynamics Laboratory (SDL), in partnership with NASA Langley Research Center is building the Geosynchronous Imaging Fourier Transform Spectrometer (GIFTS) instrument. This instrument will advance the current weather forecasting capability by studying the motion of water vapor in the atmosphere. The GIFTS focal plane assemblies (FPAs) must operate below 60 K to work properly. The spectrometer of the instrument which includes aft optics and an interferometer must operate below 150K. These two temperature zones will be cooled by a 2-stage pulse tube refrigerator built by Lockheed Martin. Prior to integration into the instrument, SDL performed extensive testing of the cyrocooler coupled to an ammonia loop heat pipe. This testing was done at SDL to characterize and validate the thermal and mechanical performance of the cryocooler. The thermal performance of the cryocooler as well as mechanical vibration characteristics observed during testing will be presented. This paper will discuss the challenges of designing, building, and integrating a cryocooler into a cryogenic instrument with very sensitive components, such as an interferometer, that can be adversely affected by mechanical vibrations in the system. © 2006 American Institute of Physics [ABSTRACT FROM AUTHOR]

Published
2006
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