Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Robert J Simonson"'
Autor:
David R. Wheeler, Komandoor E. Achyuthan, Douglas H. Read, Joshua J. Whiting, Matthew W. Moorman, Ronald P. Manginell, Cory S. Fix, Robert J Simonson
Publikováno v:
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry. 35(6)
We describe for the first time hydrogen bonded acid (HBA) polymer, poly{methyl[3-(2-hydroxyl, 4,6-bistrifluoromethyl)phenyl]propylsiloxane}, (DKAP), as stationary phase for gas chromatography (μGC) of organophosphate (OP), chemical warfare agent (CW
Publikováno v:
Sensors and Actuators B: Chemical. 224:618-623
Nitrogen and phosphorus atoms are constituents of some of the most toxic chemical vapors. Nitrogen-phosphorus gas chromatograph detectors (NPDs) rely on selective ionization of such compounds using ionization temperatures typically greater than 600
Autor:
G. R. Bogart, Jaime L. McClain, Robert J Simonson, Jeffrey W. Lantz, Paul C. Galambos, Michael S. Baker
Publikováno v:
Journal of Microelectromechanical Systems. 20:1150-1162
We present active electrostatic MEMS gas valves for Micro-Gas-Analyzer (MGA) flow control. These unique valves enable extremely low dead volume, highly integrated flow control chips for the MGA application, and potentially others (e.g., propulsion, p
Autor:
Robert J Simonson, R. C. Givler, Jeffrey W. Lantz, Conrad D. James, Jaime L. McClain, Paul C. Galambos
Publikováno v:
Journal of Microelectromechanical Systems. 18:14-27
In this paper, we present integrated disk-in-cage poppet valves with tuned spring stiffness for gas flow control of a microgas analyzer. The valves require zero power and close at preset offset pressures (0-35 psig) to switch from gas sample loading
Autor:
M. Shariati, J. A. Ellison, Ronald P. Manginell, S. Radhakrishnan, Robert J Simonson, Alex Lockwood Robinson
Publikováno v:
IEEE Sensors Journal. 7:1032-1041
The adsorption and desorption behavior of a planar microfabricated preconcentrator (PC) has been modeled and simulated using the computational fluid dynamics (CFD) package CFDRC-ACE+trade. By comparison with the results of a designed experiment, mode
Autor:
Matthew Glenn Blain, Kenton D. Childs, David R. Wheeler, Stephen W. Howell, Robert J Simonson, James M. Tour, Harry Pang, Shawn M. Dirk
Publikováno v:
Nanotechnology. 16:754-758
Optical lithography based on microfabrication techniques was employed to fabricate one-dimensional nanogaps with micrometre edge lengths in silicon. These one-dimensional nanogaps served as a platform on which organic/nanoparticle films were assemble
Publikováno v:
Sensors and Actuators B: Chemical. 99:480-490
Many data analysis algorithms that are currently employed in SAW sensors lack the ability to easily maintain calibration models in the presence of unmodeled interferents or sensor drift. The classical least squares/partial least squares (CLS/PLS) hyb
Autor:
Sherry Zmuda, Stephen W. Howell, Kenton D. Childs, David R. Wheeler, Shawn M. Dirk, Matthew Glenn Blain, Robert J Simonson
Publikováno v:
Nanotechnology. 16:1983-1985
This article details a simple four-step procedure to create a one-dimensional nanogap on a buried oxide substrate that relies on conventional photolithography performed on a stack of silicon/silicon oxide/silicon, metal evaporation, and hydrofluoric
Autor:
Michael L. Roukes, E. B. Myers, Joshua J. Whiting, Robert J Simonson, Mo Li, Hong X. Tang, Nathan S. Lewis, H. C. McCaig, S. J. Aldridge
Miniaturized gas chromatography (GC) systems can provide fast, quantitative analysis of chemical vapors in an ultrasmall package. We describe a chemical sensor technology based on resonant nanoelectromechanical systems (NEMS) mass detectors that prov
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e440db0011a7b5a36cbcc18d56980b8
https://europepmc.org/articles/PMC3839305/
https://europepmc.org/articles/PMC3839305/
Autor:
Robert J Simonson, Alan W. Staton
This report summarizes work to date on a new collaboration between Sandia National Laboratories and the California Institute of Technology (Caltech) to utilize nanoelectromechanical resonators designed at Caltech as platforms to measure the mechanica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e0aa0e3dce690ca492c844667d18c5b
https://doi.org/10.2172/993930
https://doi.org/10.2172/993930