Výsledky vyhledávání - "W. L. Johnson"

Akademický článek

Quantifying the origin of metallic glass formation

Autor: W. L. Johnson, J. H. Na, M. D. Demetriou

Publikováno v: Nature Communications, Vol 7, Iss 1, Pp 1-7 (2016)

The crystal formation waiting time of a homogeneous supercooled liquid exhibits a pronounced minimum depending on temperature, and this minimum is a measure of glass forming ability. Here, the authors propose an expression for this minimum for all me

Externí odkaz: https://doaj.org/article/893b30ae77e84737ac1a1465df455660

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Analysis of heat transfer from a local heat source at cryogenic temperatures

Autor: W L Johnson, R Balasubramaniam, R Grotenrath

Publikováno v: IOP Conference Series: Materials Science and Engineering. 1240:012013

Understanding the dispersion of heat around a cryogenic fluid tank, specifically the interaction between the cryogenic fluid and the tank wall is critical in the analysis of long duration cryogen storage in microgravity. The heat transfer interaction

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c7d54fdf18433bf914596c080c7fa5e9
https://doi.org/10.1088/1757-899x/1240/1/012013

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Vapor cooling of a structural skirt for a large-scale hydrogen tank

Autor: W L Johnson, R Balasubramaniam, R Hibbs

Publikováno v: IOP Conference Series: Materials Science and Engineering. 1240:012009

The demonstration of vapor cooling on a structural skirt was one of the main objectives of the Structural Heat Intercept, Insulation, and Vibration Evaluation Rig (SHIIVER) testing. SHIIVER consisted of a 4-meter diameter stainless steel tank with an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ed64181c7da2dcd995884f555dc8d962
https://doi.org/10.1088/1757-899x/1240/1/012009

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Results of use of heat flux sensors on liquid hydrogen tanks

Autor: W L Johnson, R Balasubramaniam, R Hibbs

Publikováno v: IOP Conference Series: Materials Science and Engineering. 1240:012005

Heat flux sensors were used to characterize the performance of insulation on the Structural Heat Intercept, Insulation, and Vibration Evaluation Rig (SHIIVER), a large-scale test article designed to simulate upper stage cryogenic propellant tank ther

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1db725d784900054b3c06ff4f885e4eb
https://doi.org/10.1088/1757-899x/1240/1/012005

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Testing of SHIIVER MLI Coupons for Heat Load Predictions

Autor: V. Mistry, F. D. Koci, D. Oberg, D. Frank, W. L. Johnson

Publikováno v: IOP Conference Series: Materials Science and Engineering. 755:012151

The Structural Heat Intercept, Insulation, and Vibration Evaluation Rig (SHIIVER) is designed to demonstrate the performance benefits of installing multilayer insulation (MLI) and structural vapor cooling onto a large hydrogen tank as a part of an up

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::56d4795f6798bea002761dd30df6100e
https://doi.org/10.1088/1757-899x/755/1/012151

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Testing of Heat Flux Sensors at Cryogenic Temperatures

Autor: W. L. Johnson, K. Westra, R. Balasubramaniam

Publikováno v: IOP Conference Series: Materials Science and Engineering. 755:012074

Normally, in order to characterize multilayer insulation installed onto a test tank, the boil-off of the tank is measured and then heat loads from structural and fluid penetrations are calculated from temperature measurements throughout the system. F

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c086e3e620220c1b7fc8cffb5a866a99
https://doi.org/10.1088/1757-899x/755/1/012074

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Performance of MLI Seams between 293 K and 20 K

Autor: W. L. Johnson, D. J. Chato

Publikováno v: IOP Conference Series: Materials Science and Engineering. 755:012152

The performance of multilayer insulation systems (MLI) are often determined not by the bulk acreage insulation but rather by the design details that allow the insulation to be attached to the hardware it is insulating. To help understand the impacts

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2524d44694a1ec9b25466ddeb645367b
https://doi.org/10.1088/1757-899x/755/1/012152

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Electronic Structure Of Metallic Glasses

Autor: W. L. Johnson, M. Tenhover

Publikováno v: Glassy Metals: Magnetic, Chemical, and Structural Properties ISBN: 9781351072267
Glassy Metals: Magnetic, Chemical, and Structural Properties

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f71886f89fceba291367868f56587cb6
https://doi.org/10.1201/9781351072267-3

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Repeatability of Cryogenic Multilayer Insulation

Autor: S. W. Van Sciver, N. O. Rhys, D. J. Chato, M. Vanderlaan, J. J. Wood, W. L. Johnson, Wei Guo

Publikováno v: IOP Conference Series: Materials Science and Engineering. 278:012196

Due to the variety of requirements across aerospace platforms, and one off projects, the repeatability of cryogenic multilayer insulation (MLI) has never been fully established. The objective of this test program is to provide a more basic understand

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2d7fcff33ffc701efe8ffe8ca5ac89d2
https://doi.org/10.1088/1757-899x/278/1/012196

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