Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Randy M. Villahermosa"'
Autor:
Lael Woods, Mackenzie Puig-Hall, Andre Doumitt, Brandie L. Rhodes, Rob Sherwood, Randy M. Villahermosa, Erica DeIonno, A. L. Mazuk
Publikováno v:
2020 IEEE Aerospace Conference.
The traditional aerospace industry is undergoing tremendous shifts in focus, methodology, and speed of innovation, due in part to the “New Space” sector of well over 1,000 companies focused on creating alternative business models for accessing sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4f7ec2e3662f63019effc0e9de4b090
https://doi.org/10.1109/aero47225.2020.9172687
https://doi.org/10.1109/aero47225.2020.9172687
Autor:
Lael Woods, Mackenzie Puig-Hall, Erica DeIonno, Paul Anderson, Andre Doumitt, Brandie L. Rhodes, Randy M. Villahermosa, Rob Sherwood, David Cardoza, Brad Hirasuna
Publikováno v:
2019 IEEE Aerospace Conference.
The aerospace industry is undergoing tremendous changes causing a shift in focus, methodology, and the speed of innovation. At the same time, the “NewSpace” sector of the aerospace industry consists of almost 1,000 companies focused on creating d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ead2ff0f9b81ead8f81d3bd755a0564a
https://doi.org/10.1109/aero.2019.8741665
https://doi.org/10.1109/aero.2019.8741665
Autor:
Andre Doumitt, Brandie L. Rhodes, Rob Sherwood, Lael Woods, Erica DeIonno, Randy M. Villahermosa, Brad Hirasuna Paul Anderson, Mackenzie Puig-Hall
Publikováno v:
2018 IEEE Aerospace Conference.
The aerospace industry is undergoing tremendous changes causing a shift in focus, methodology, and the speed of innovation. The “NewSpace” sector of the aerospace industry consists of almost 1,000 companies focused on creating different business
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de9b1cb9ab8f7269b0f0a7c89d2ced56
https://doi.org/10.1109/aero.2018.8396780
https://doi.org/10.1109/aero.2018.8396780
Autor:
Randy M. Villahermosa, Lawrence T. Greenberg, John D. DeSain, Thomas J. Curtiss, Mark B. Smith, Brian B. Brady
Publikováno v:
Journal of Propulsion and Power. 31:1193-1203
Many propellant delivery systems use helium gas for storage, pumping, and pressurizing liquid propellants for in-space applications. To properly understand propellant tank functionality, reliable data on the solubilities of pressurant gases in these
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c42013f97a43d65a4f6cfbb1e6d7c1d
https://doi.org/10.2514/1.b35380
https://doi.org/10.2514/1.b35380
Autor:
Alan R. Hopkins, Rika E. Anderson, Danielle E. Gran, Jesse D. Fowler, Randy M. Villahermosa, Alexis D. Ostrowski
Publikováno v:
Polymer Bulletin. 61:563-568
Various diameters of polyaniline (PANI) nanofibers were easily made by varying the sweep rate in the electrochemical polymerization of the aniline monomer. At a sweep rate of 5 mV/s, the PANI nanofibers have an average diameter of 450 nm with a media
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a02eb33b24017ed08726a7d4a777c0d7
https://doi.org/10.1007/s00289-008-0983-x
https://doi.org/10.1007/s00289-008-0983-x
Publikováno v:
Thin Solid Films. :304-308
In this work, polyaniline/poly(sulfonated styrene) (PANI–PSS) nanofiber composites were prepared by an interfacial method. The in situ polymerization technique of these PANI nanofibers in the presence of sulfonated polystyrene allowed for the growt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b18e4c183ed6f8ac76b717b807c1e48
https://doi.org/10.1016/j.tsf.2004.08.089
https://doi.org/10.1016/j.tsf.2004.08.089
Autor:
Nathan S. Lewis, Elizabeth I. Mayo, Jay R. Winkler, Harry B. Gray, Kristine Kilså, Randy M. Villahermosa, Darius Kuciauskas
Publikováno v:
The Journal of Physical Chemistry A. 107:3379-3383
We have shown that Ru^(II)(bpy)_2(bpy-4-(xylyl)_x-≡-phenyl-COOH)(PF_6)_2 (abbreviated Rux, where x = 0, 1 or 2 xylyl groups; bpy = 2,2‘-bipyridine) dyes can act as sensitizers for nanocrystalline TiO_2 in functional photoelectrochemical cells und
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3b77a5f4559ff16c3a9916bc1a53e8d
https://doi.org/10.1021/jp021921u
https://doi.org/10.1021/jp021921u
Autor:
Harry B. Gray, Nathan S. Lewis, Jeremy E. Monat, James K. McCusker, Randy M. Villahermosa, Darius Kuciauskas
Publikováno v:
The Journal of Physical Chemistry B. 106:9347-9358
Transient absorption spectroscopy has been used to probe the electron injection dynamics of transition metal polypyridyl complexes adsorbed onto nanocrystalline TiO2 photoelectrodes. Experiments were performed on photoelectrodes coated with Ru(H2L‘
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62940d6f7d72e33299191a50e819286b
https://doi.org/10.1021/jp014589f
https://doi.org/10.1021/jp014589f
Autor:
Ester Gomez, Johan Leckner, Donita Sanders, Roland Aasa, Anna Öhman, B. Göran Karlsson, Harry B. Gray, Bo G. Malmström, Randy M. Villahermosa, James A. Fee, Michael G. Hill, Jay R. Winkler, Pernilla Wittung-Stafshede
Publikováno v:
Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology. 1388:437-443
Electrochemical measurements show that there are high-potential states of two copper proteins, Pseudomonas aeruginosa azurin and Thermus thermophilus CuA domain; these perturbed states are formed in guanidine hydrochloride (GuHCl) solution in which t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa7532c51af913ff5f5d13187c1f3cd7
https://doi.org/10.1016/s0167-4838(98)00205-2
https://doi.org/10.1016/s0167-4838(98)00205-2
Autor:
Franklin P. DeHaan, Bimal R. Patel, Jim Na, Steven K. Ma, Paul Y. Ahn, Carl R. Kemnitz, Richard M. Ruiz, Randy M. Villahermosa
Publikováno v:
International Journal of Chemical Kinetics. 30:367-372
Vacuum line kinetic studies of the reaction of p-toluenesulfonyl chloride and benzene or toluene, using aluminum chloride as the catalyst and dichloromethane as the solvent were determined at 25°C by means of gas chromatography. The reaction is firs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5326fcc8aa6f35cd450e1c3f5fcdf0ff
https://doi.org/10.1002/(sici)1097-4601(1998)30:5<367::aid-kin7>3.0.co
https://doi.org/10.1002/(sici)1097-4601(1998)30:5<367::aid-kin7>3.0.co