Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Brian K. Hatchell"'
Publikováno v:
INCOSE International Symposium. 25:1278-1289
The petroleum industry uses radioactive isotopes in well-logging operations to support oil exploration activities. Well-logging service providers use radiological sources to obtain the most accurate estimate of porosity in geologic formations. The Na
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59a37056c9f02960fabe7f7923805826
https://doi.org/10.1002/j.2334-5837.2015.00129.x
https://doi.org/10.1002/j.2334-5837.2015.00129.x
Publikováno v:
INCOSE International Symposium. 24:230-241
System-level verification is intended to check that the system satisfies a set of requirements. The verification of a system of systems (SoS) is more difficult for a number of reasons. In a SoS, multiple organizations are involved, and there may be n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ececacf021e73d35787a0e1055cff2f
https://doi.org/10.1002/j.2334-5837.2014.tb03146.x
https://doi.org/10.1002/j.2334-5837.2014.tb03146.x
Autor:
Brian K. Hatchell, James R. Skorpik, Stephen A. Marotta, Fredrick J. Mauss, Kurt L. Silvers, Ivan A. Amaya
Publikováno v:
Structural Health Monitoring. 11:213-224
Military missiles are exposed to many sources of mechanical vibration that can affect system reliability, safety, and mission effectiveness. The US Army Aviation and Missile Research Development and Engineering Center has been developing missile heal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7e26e9fa7bc14043285657a6f79b8de
https://doi.org/10.1177/1475921711414237
https://doi.org/10.1177/1475921711414237
Publikováno v:
Journal of Power Sources. 112:570-576
Fuel cells operating on hydrocarbon fuels require water vapor injection into the fuel stream for fuel reforming and the prevention of carbon fouling. Compared to active water recovery systems, a passive approach would eliminate the need for a separat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d745a088fc66f1f4bb742a734231aa12
https://doi.org/10.1016/s0378-7753(02)00454-8
https://doi.org/10.1016/s0378-7753(02)00454-8
This summary report examines an in-vessel optical access concept intended to support standoff optical instrumentation, control and human-machine interface (ICHMI) systems for future advanced small modular reactor (AdvSMR) applications. Optical-based
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80e666743f97d2e4d14b9fc01c23d092
https://doi.org/10.2172/1114899
https://doi.org/10.2172/1114899
Publikováno v:
Advances in Acoustics and Vibration, Vol 2013 (2013)
Harvesting power with a piezoelectric vibration powered generator using a full-wave rectifier conditioning circuit is experimentally compared for varying sinusoidal, random, and sine on random (SOR) input vibration scenarios; the implications of sour
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4a15b6e995a3b04e201548296cb6ab1
https://doaj.org/article/f1719efe225f45659117ad73ab887b21
https://doaj.org/article/f1719efe225f45659117ad73ab887b21
Autor:
David M. Sheen, Jonathan R. Tedeschi, Patrick Lj Valdez, James F. Kelly, Thomas E. Hall, Douglas L. McMakin, Brian K. Hatchell, Bruce E. Bernacki
Publikováno v:
SPIE Proceedings.
As millimeter-wave arrays become available, off-axis imaging performance of the fore optics increases in importance due to the relatively large physical extent of the arrays. Typically, simple optical telescope designs are adapted to millimeter-wave
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51d27149f46cf65bd891b43de14d7f45
https://doi.org/10.1117/12.917773
https://doi.org/10.1117/12.917773
Autor:
James F. Kelly, Brian K. Hatchell, Douglas L. McMakin, Albert Mendoza, Patrick Lj Valdez, Robert V. Harris, Bruce E. Bernacki, Thomas E. Hall, Jonathan R. Tedeschi, David M. Sheen
Publikováno v:
SPIE Proceedings.
We present the theory, design, and experimental results obtained from a scanning passive W-band fully polarimetric imager. Passive millimeter-wave imaging offers persistent day/nighttime imaging and the ability to penetrate dust, clouds and other obs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f975b9667e2c8d701358dad01effece5
https://doi.org/10.1117/12.909756
https://doi.org/10.1117/12.909756
Autor:
Patrick Lj Valdez, Douglas L. McMakin, Wayne M. Lechelt, Jonathan R. Tedeschi, Albert Mendoza, James F. Kelly, Thomas E. Hall, Robert V. Harris, Ronald H. Severtsen, David M. Sheen, Brian K. Hatchell, Bruce E. Bernacki, Clint D. Knopik
This report describes research and development efforts toward a novel passive millimeter-wave (mm-wave) electromagnetic imaging device for broad-area search. It addresses the technical challenge of detecting anomalies that occupy a small fraction of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96c852ceff1b4f7593b96406db88979d
https://doi.org/10.2172/1033463
https://doi.org/10.2172/1033463