Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Philip J. Hargis"'
Autor:
Philip J. Hargis, Randal L. Schmitt, Carol Celeste Phifer, John Ethan Parmeter, Lawrence R. Thorne
Continuing use of explosives by terrorists throughout the world has led to great interest in explosives detection technology, especially in technologies that have potential for standoff detection. This LDRD was undertaken in order to investigate the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e6720c55dd8b1181491c5e2a86cb685
https://doi.org/10.2172/895982
https://doi.org/10.2172/895982
Autor:
Mark S. Johnson, Philip J. Hargis, Glen Ira Magee, Randal L. Schmitt, Philip J. Rodacy, Gary Lee Bender, Susan Fae Ann Bender, James R. Klarkowski
The Defense Advanced Research Projects Agency (DARPA) has recognized that biological and chemical toxins are a real and growing threat to troops, civilians, and the ecosystem. The Explosives Components Facility at Sandia National Laboratories (SNL) h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d6b208e9dcaa52d6e18fd8d85197888
https://doi.org/10.2172/808625
https://doi.org/10.2172/808625
Autor:
Wilfred Chen, Anup K. Singh, Robert J Simonson, Joseph S. Schoeniger, Ashok Mulchandani, Carol S. Ashley, Philip J. Hargis, Randal L. Schmitt, C. Jeffrey Brinker, Mark S. Johnson, Rimple B. Bhatia, Alok Gupta, Bradley G. Hance
This report summarizes the development of sensor particles for remote detection of trace chemical analytes over broad areas, e.g residual trinitrotoluene from buried landmines or other unexploded ordnance (UXO). We also describe the potential of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aaeab5ca2c3067ce7f2605a030ff4481
https://doi.org/10.2172/789593
https://doi.org/10.2172/789593
Publikováno v:
SPIE Proceedings.
Environmental fate and transport studies of explosives in soil indicate that 2,4,6-trinitrotoluene (TNT) and similar products such as dinitrotoluene (DNT) are major contributors to the trace chemical signature emanating from buried landmines. Chemica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d75dcde8208dda122e9c363683f777f
https://doi.org/10.1117/12.445416
https://doi.org/10.1117/12.445416
Publikováno v:
SPIE Proceedings.
A prototype of an unattended ground sensor has been developed for detection of biological agent aerosols. This point sensor uses ultraviolet laser induced fluorescence (UV LIF) to detect aerosol biological microorganisms collected on filter media. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa29a2323346ab14396f542b79073558
https://doi.org/10.1117/12.371266
https://doi.org/10.1117/12.371266
Publikováno v:
SPIE Proceedings.
We describe a multispectral ultraviolet (UV) fluorescence laser remote sensing system developed to detect and identify airborne pollutants. The system uses a UV laser source that is continuously tunable from 250 to 400 nm in conjunction with a databa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbbb7329c32f44898bbbcbbb83b82530
https://doi.org/10.1117/12.205584
https://doi.org/10.1117/12.205584
Publikováno v:
SPIE Proceedings.
Recent food poisoning incidents have highlighted the need for inexpensive instrumentation that can detect food pathogens. Instrumentation that detects the relatively strong ultraviolet (UV) fluorescence signal from the aromatic protein amino acids in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06f903fddb19ef940df98988d8ae24f0
https://doi.org/10.1117/12.205554
https://doi.org/10.1117/12.205554
Publikováno v:
Optical Sensors for Environmental and Chemical Process Monitoring.
We have developed a capability to make real time concentration measurements of individual chemicals in a complex mixture using a multispectral laser remote sensing system. Our chemical recognition and analysis software consists of three parts: (1) a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3376bee51747b8fc594321c1636fc35
https://doi.org/10.1117/12.199671
https://doi.org/10.1117/12.199671
Publikováno v:
MRS Proceedings. 38
In low pressure, radio frequency (RF) discharges of the type used in plasma processing of semiconductor materials, the rate of electron impact excitation and energy transfer processes depends upon both the phase of the RF excitation and position in t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26349cf10ca5fbc9f519e246b19dcf14
https://doi.org/10.1557/proc-38-201
https://doi.org/10.1557/proc-38-201
Autor:
Colin J. McKinstrie, Justin Wark, David W. Forslund, Philip J. Hargis, Allan Hauer, J. M. Kindel, Roy A. Hamil
This report describes several new applications of laser-produced plasmas that have arisen in the last few years. Most of the applications have been an outgrowth of the active research in laser/matter interaction inspired by the pursuit of laser fusio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9bb3c4266a4f8b919044ed156392ab1
https://doi.org/10.2172/7123733
https://doi.org/10.2172/7123733