Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Agnes O'Gallagher"'
Publikováno v:
Journal of Nondestructive Evaluation. 18:83-90
A comparison was made between two approaches to predict acoustic emission waveforms in thin plates. A normal mode solution method for Mindlin plate theory was used to predict the response of the flexural plate mode to a point source, step-function lo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c16909cbe78806087900e35af47964a9
https://doi.org/10.1023/a:1021888009896
https://doi.org/10.1023/a:1021888009896
Publikováno v:
AIP Conference Proceedings.
The NIST numerical software, REGEN3.3, which incorporates both He‐4 and He‐3 properties, was used to calculate the losses and second law efficiencies of 4 K regenerators operating at 30 Hz. Operating parameters, such as average pressure, pressure
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21479e64f87f04356ff5383a3df05276
https://doi.org/10.1063/1.3422340
https://doi.org/10.1063/1.3422340
Autor:
Judith E. Terrill, Marc Olano, Terence J. Griffin, Joy P. Dunkers, Gillian Haemer, William L. George, John G. Hagedorn, John T. Kelso, Agnes O’Gallagher, Adele P. Peskin, Steven G. Satterfield, Nicos Martys, Jeffrey W. Bullard, James S. Sims
Publikováno v:
Trends in Interactive Visualization ISBN: 9781848002685
We describe three classes of tools to turn visualizations into a visual laboratory to interactively measure and analyze scientific data. We move the nor- mal activities that scientists perform to understand their data into the visualization environme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95e0971eae7c6b9871f0bed4ccc38fdf
https://doi.org/10.1007/978-1-84800-269-2_13
https://doi.org/10.1007/978-1-84800-269-2_13
Autor:
Ray Radebaugh, Yonghua Huang, Agnes O'Gallagher, John Gary, J. G. Weisend, John Barclay, Susan Breon, Jonathan Demko, Michael DiPirro, J. Patrick Kelley, Peter Kittel, Arkadiy Klebaner, Al Zeller, Mark Zagarola, Steven Van Sciver, Andrew Rowe, John Pfotenhauer, Tom Peterson, Jennifer Lock
Publikováno v:
AIP Conference Proceedings.
The helium-4 working fluid in regenerative cryocoolers operating with the cold end near 4 K deviates considerably from an ideal gas. As a result, losses in the regenerator, given by the time-averaged enthalpy flux, are increased and are strong functi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3df0c6df7183bb323953f9de8f59a50
https://doi.org/10.1063/1.2908551
https://doi.org/10.1063/1.2908551
Autor:
Agnes O'Gallagher, Ray Radebaugh
Publikováno v:
AIP Conference Proceedings.
The size of Stirling and Stirling‐type pulse tube cryocoolers is dominated by the size of the pressure oscillator. Such cryocoolers typically operate at frequencies up to about 60 Hz for cold‐end temperatures above about 60 K. Higher operating fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11141c753434174ffacce694a23c5a24
https://doi.org/10.1063/1.2202623
https://doi.org/10.1063/1.2202623
Publikováno v:
AIP Conference Proceedings.
The low heat capacity of regenerator materials near 4 K and the real gas properties of helium at this temperature give rise to anomalous temperature profiles and behavior not seen at higher temperatures. This paper describes the behavior of regenerat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a284b99384e99eda2c8e6133a0dd3e22
https://doi.org/10.1063/1.1472117
https://doi.org/10.1063/1.1472117
Publikováno v:
Cryocoolers 11 ISBN: 9780306465673
Regenerators with finite losses are capable of absorbing a limited amount of heat at intermediate temperatures along their length. This paper discusses a simple analytical model and a rigorous numerical model of regenerator behavior under the influen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::855f285648e0f8ff77ac1a1aab30c8f1
https://doi.org/10.1007/0-306-47112-4_52
https://doi.org/10.1007/0-306-47112-4_52