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Search Publications by: George Mulholland (Assoc)

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Displaying 126 - 150 of 208

Size-Monodisperse Metal Nanoparticles Via Hydrogen-Free Spray Pyrolysis

April 3, 2002
Author(s)
Jung Hyeun Kim, Thomas A. Germer, George Mulholland, S H. Ehrman
Pure copper nanoparticles were produced using a co-solvent approach avoiding use of hydrogen or other reducing gas. Compared with the particles formed without the co-solvent, the addition of alcohol has a significant effect in preventing oxidation, which

Characterization of Particulate From Fires Burning Silicone Fluids

December 1, 2001
Author(s)
Y Sivathanu, Anthony P. Hamins, George W. Mulholland, Takashi Kashiwagi, R Buch
The optical properties of particulate emitted from fires burning two distinct polydimethylsiloxane fluids (D4 and M2 or MM, where D=(CH3)2SiO and M=(CH3)3SiO2) were obtained using a transmission cell-reciprocal nephelometer in conjunction with gravimetric

Polarized Light Scattering From Metallic Particles on Silicon Wafers

December 1, 2001
Author(s)
Jae H. Kim, S H. Ehrman, George W. Mulholland, Thomas Germer
Polarized light scattering by monodisperse copper and gold spheres, having diameters ranging from 96 nm to 205 nm deposited on silicon substrates were measured using visible light. The results are compared to an exact theory for scattering by a sphere on a

International Study of the Sublethal Effects of Fire Smoke on Survivability and Health (SEFS): Phase 1. Final Report (NIST TN 1439)

August 1, 2001
Author(s)
Richard G. Gann, Jason D. Averill, Kathryn M. Butler, Walter W. Jones, George W. Mulholland, J L. Neviaser, Thomas J. Ohlemiller, Richard D. Peacock, Paul A. Reneke, J R. Hall
Fire smoke toxicity has been a recurring theme for fire safety professionals for over four decades. There especially continue to be difficulty and controversy in assessing and addressing the contribution of the sublethal effects of smoke in hazard and risk

Sublethal Effects of Smoke on Survival and Health

March 26, 2001
Author(s)
Richard G. Gann, Jason D. Averill, Kathryn M. Butler, Walter W. Jones, George W. Mulholland, J L. Neviaser, Thomas J. Ohlemiller, Richard D. Peacock, Paul A. Reneke, J R. Hall

Apparatus for Light Scattering Studies of Smoke Particles

March 25, 2001
Author(s)
George W. Mulholland, D W. Weinert
A facility for measuring the light scattered by smokes as a function of the scattering angle and linear polarization has been developed. By using monosize polystyrene calibration particles and filter collection for gravimeteric measurement, we are able for

Size Distribution and Light Scattering Properties of Test Smokes (NIST SP 965)

February 1, 2001
Author(s)
D W. Weinert, Thomas Cleary, George W. Mulholland
Measurements of particles size distributions and optical properties of smoke detector test smokes may yield a better understanding of existing detector designs and facilitate design improvements; NIST is making such measurements now on smokes produced in

Performance of a Fast Response Agent Concentration Meter

May 2, 2000
Author(s)
Erik L. Johnsson, George W. Mulholland, Gerald T. Fraser, A Zuban, I I. Leonov
There is a need for monitoring the concentration of potential halon replacement chemicals with millisecond response time [I]. One scenario of great concern to the Air Force is the penetration of an enemy shell into the fuel tank of an aircraft. To prevent

Calibration Particles Relevant to the Measurement of Nanosize Particles.

October 11, 1999
Author(s)
George W. Mulholland
The development of technologies associated with nanometer size particles, such as automated wafer inspection systems, requires several monosize calibration particlcs with diameters in the range from 1 nm to 100 nm. The one relevant calibration standard
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