Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Murray Darrach"'
Autor:
S. M. Madzunkov, Marianne Gonzalez, Margie L. Homer, Byunghoon Bae, Charles P. Malone, J. Simcic, Anton Belousov, Richard D. Kidd, Murray Darrach
Publikováno v:
2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers).
The first Micro-Electro-Mechanical System (MEMS) Preconcentrator (PC) and Gas Chromatograph (GC) have been developed for NASA's Spacecraft Atmosphere Monitor (S.A.M.), with the second technology development unit (TDU2) under development for the Inter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::344218f5d6cbabeccaf3060b42cbf1d8
https://doi.org/10.1109/transducers50396.2021.9495458
https://doi.org/10.1109/transducers50396.2021.9495458
Autor:
S. M. Madzunkov, Dragan Nikolic, Sarah E. Waller, Murray Darrach, Anton Belousov, Joshua S. Wiley, Richard D. Kidd
Publikováno v:
Astrobiology. 19:1196-1210
A new technique that has applications for the detection of nonvolatile organics on Ocean Worlds has been developed. Here, liquid mixtures of fatty acids (FAs) and/or amino acids (AAs) are ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21d415eef6239c35b0ded221aeffaefb
https://doi.org/10.1089/ast.2018.1961
https://doi.org/10.1089/ast.2018.1961
Autor:
Vanessa J. Murray, S. M. Madzunkov, Timothy K. Minton, Min Qian, Eric J. Smoll, Murray Darrach, Marcin Pilinski
Publikováno v:
The Journal of Physical Chemistry C. 121:7903-7922
A concept for a passive neutral gas concentrator that facilitates the analysis of rarefied atmospheres using mass spectrometry on spacecraft has been developed. The efficiency of the concentrator depends strongly on gas–surface scattering dynamics
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd7d458c15f1fc3a96478bbc11979b07
https://doi.org/10.1021/acs.jpcc.7b00456
https://doi.org/10.1021/acs.jpcc.7b00456
Autor:
Guillaume Avice, Kenneth A. Farley, Murray Darrach, J. Simcic, Anton Belousov, Christophe Sotin, S. M. Madzunkov, Dragan Nikolic
Measuring the abundance and isotopic composition of noble gases in planetary atmospheres can answer fundamental questions in cosmochemistry and comparative planetology. However, noble gases are rare elements, a feature making their measurement challe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::628518828ee9de1f60c99afe48e4d39b
https://resolver.caltech.edu/CaltechAUTHORS:20181101-101938362
https://resolver.caltech.edu/CaltechAUTHORS:20181101-101938362
Autor:
David H. Lehman, Scott Hensley, M. Darby Dyar, Murray Darrach, Michael E. Lisano, Suzanne E. Smrekar, Mark Wallace, Jörn Helbert, Christophe Sotin
Publikováno v:
2018 IEEE Aerospace Conference.
Of all known planets and moons in the galaxy, Venus remains the most Earth-like in terms of size, composition, surface age, and distance from the Sun [1]. Although not currently habitable, Venus lies within the Sun's ‘Goldilocks zone’, and may ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c13534b06cc21e0196de011094ba0c4
https://doi.org/10.1109/aero.2018.8396625
https://doi.org/10.1109/aero.2018.8396625
Publikováno v:
Journal of the American Society for Mass Spectrometry. 26(12)
We present the multi-particle simulation program suite Computational Ion Trap Analyzer (CITA) designed to calculate the ion trajectories within a Paul quadrupole ion trap developed by the Jet Propulsion Laboratory (JPL). CITA uses an analytical expre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::70eea89cdabd2dd7b21cc0bf3820b2ab
https://pubmed.ncbi.nlm.nih.gov/26286456
https://pubmed.ncbi.nlm.nih.gov/26286456
Autor:
Murray Darrach, Evan L. Neidholdt, R. T. Schaefer, Marcin Pilinski, Dragan Nikolic, S. M. Madzunkov, J. Simcic, Richard D. Kidd, Kenneth A. Farley, Andres Jaramillo-Botero
Publikováno v:
2015 IEEE Aerospace Conference.
Presented herein is the progress on developing a new mass analyzer for analysis of the exospheres of planets, moons, and primitive bodies, such as found at Europa or Enceladus. Europa, one of Jupiter's four Galilean moons, may have a subsurface ocean
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::056d58088ec427fc16ff7217e7bbc56d
https://doi.org/10.1109/aero.2015.7119017
https://doi.org/10.1109/aero.2015.7119017
Publikováno v:
Environmental Science & Technology. 32:1354-1358
Trace explosives signatures of TNT and DNT have been extracted from multiple sediment samples adjacent to unexploded undersea ordnance at Halifax Harbor, Canada. The ordnance was hurled into the harbor during a massive explosion some 50 years earlier
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::591d77d18edd82bbdfbf89a590973649
https://doi.org/10.1021/es970992h
https://doi.org/10.1021/es970992h
Publikováno v:
43rd International Conference on Environmental Systems.
We report progress towards developing the micro-Gas Monitor (mGM), a miniature gas chromatograph mass spectrometer. The mGM is planned to have a total mass of 2.5kg and consume approximately 22W of power, including pumps and all electronics. The inst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ebcbb640709cff1b0ee926c7767d385
https://doi.org/10.2514/6.2013-3453
https://doi.org/10.2514/6.2013-3453
Autor:
R. T. Schaefer, J. Kenny, A. P. Croonquist, Benjamin Bornstein, S. M. Madzunkov, Ara Chutjian, J. A. MacAskill, Murray Darrach, Lukas Mandrake, Seungwon Lee, Richard D. Kidd, D. Karmon, N. Toomarian, J. Hofman, V. Garkanian
Publikováno v:
42nd International Conference on Environmental Systems.
We report on trace gas and major atmospheric constituents results obtained by the Vehicle Cabin Atmosphere Monitor (VCAM) following almost two years of operation aboard the International Space Station (ISS). VCAM is an autonomous environmental monito
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a4e3f33491dd60de96e6e92c14814d8
https://doi.org/10.2514/6.2012-3432
https://doi.org/10.2514/6.2012-3432