Zobrazeno 1 - 10
of 71
pro vyhledávání: '"D. E. Parks"'
Publikováno v:
Journal of Applied Physics. 74:7094-7100
A theory is presented to explain the observed electron emission characteristics of a hollow‐cathode‐based plasma source. The theory is compared with measurements made in a laboratory vacuum facility and is used to predict emission characteristics
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e9d08d3650a273598f098ab68743ca6
https://doi.org/10.1063/1.355023
https://doi.org/10.1063/1.355023
Publikováno v:
Journal of Spacecraft and Rockets. 28:292-298
In laboratory experiments, plasma contactors are observed to collect ampere-level electron currents with low impedance. In order to extend the laboratory experience to the low-earth-orbit environment, a model of plasma contactors is being developed.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::007e5d570f2aca3c9447a44138ca47fb
https://doi.org/10.2514/3.26243
https://doi.org/10.2514/3.26243
Publikováno v:
IEEE Transactions on Electrical Insulation. 25:367-370
The interactions between HV systems and the low-earth-orbit environment are reviewed. The mechanism responsible for the observed arcing on negatively biased solar arrays is discussed, and calculations of the plasma density dependence on the voltage t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6565e3049e0974756f20fba95544b0b
https://doi.org/10.1109/14.52386
https://doi.org/10.1109/14.52386
Publikováno v:
Applied Physics Letters. 59:2808-2810
Experimental evidence suggests that long conduction time (≥ (R18)1 μs) plasma opening switches open more slowly than expected on the basis of magnetic forces, and perhaps even on the basis of plasma erosion. We propose that the slow opening is ass
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62630d632e99f51a7e89581aba4f0851
https://doi.org/10.1063/1.105867
https://doi.org/10.1063/1.105867
Publikováno v:
Biochemistry. 31(5)
Two synthetic peptides corresponding to the N- and C-terminal halves of a 23 amino acid sequence representing an immunodominant domain of the simian immunodeficiency virus of macaque origin (SIVmac) were examined for conformational preferences in aqu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cdac3cfe697534e48526e937d03ed343
https://pubmed.ncbi.nlm.nih.gov/1737004
https://pubmed.ncbi.nlm.nih.gov/1737004
Publikováno v:
Journal of acquired immune deficiency syndromes. 4(6)
Recent reports have indicated the possibility that HIV-2 has been introduced into groups at risk for AIDS in Brazil. We studied sera collected in 1987 and 1988 from 1,821 at-risk individuals from diverse regions in Brazil. Of the 1,821 sera, 367 (20%
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::a9e5362b316cbb8c92cf8ea20ddd36e5
https://pubmed.ncbi.nlm.nih.gov/2023103
https://pubmed.ncbi.nlm.nih.gov/2023103
Publikováno v:
Journal of Spacecraft and Rockets. 24:367-371
A theory is developed to account for the observed properties of discharges of solar arrays immersed in plasma. The theory is based on the assumption that a thin layer of insulating contaminant covers any metallic surface exposed to the plasma. Quanti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79505081160d31b52706bbb7fb603b00
https://doi.org/10.2514/3.25926
https://doi.org/10.2514/3.25926
Publikováno v:
The Journal of Immunology. 126:938-942
The injection of deaggregated human gamma-globulin (DHGG) into mice results in the establishment of specific immunologic unresponsiveness in T and B lymphocytes. However, the additional injection of bacterial lipopolysaccharide (LPS) 3 hr later conve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3766e8c9e77352e96f72240950b12cec
https://doi.org/10.4049/jimmunol.126.3.938
https://doi.org/10.4049/jimmunol.126.3.938
Publikováno v:
The Journal of Immunology. 135:2962-2966
The injection of deaggregated human gamma-globulin (DHGG) into A/J mice results in the establishment of a state of unresponsiveness to subsequent challenge with immunogenic aggregated human gamma-globulin (AHGG). Administration of the B cell activato
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df240a3360b285f0ad6bd48d3c60fca2
https://doi.org/10.4049/jimmunol.135.5.2962
https://doi.org/10.4049/jimmunol.135.5.2962
Publikováno v:
IEEE Transactions on Nuclear Science. 27:1786-1791
We present a theory for the magnitude of blowoff currents measured in electrostatic discharge of spacecraft materials. Observed currents are far larger than can be explained by simple space-charge-limited current calculations. However, a model based
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b91656cf4a491329c891624b7b37ea0
https://doi.org/10.1109/tns.1980.4331107
https://doi.org/10.1109/tns.1980.4331107