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Displaying 1951 - 1975 of 2289

Electromodulated Spectroscopy of Molecules Immobilized on Electrode Surfaces

May 1, 1999
Author(s)
Adolfas K. Gaigalas, L. Li, T Ruzgas
The article describes electromodulated spectroscopy of molecules immobilized on electrodes. Electromodulated reflectance (EmR) probes changes in the absorption properties of the immobilized molecules while electromodulated fluorescence (EmF) probes the

Local Environments of Three Forms of Ba 2 Ycu 3 O 6+x

March 12, 1999
Author(s)
Winnie K. Wong-Ng, M Melamud, Lawrence H. Bennett
The Wigner-Seitz local atomic cell construction procedure, provides a topological means for comparing series of related structures in terms of the number and type of nearest neighbors. We used this construction to further our understanding of the chemical

THE INFLUENCE OF HALOGENATED FIRE SUPPRESSANTS ON THE COMBUSTION OF C1-C2 HYDROCARBONS

January 1, 1996
Author(s)
Valeri I. Babushok, Donald R. Burgess Jr., T Noto, Anthony P. Hamins, Wing Tsang, A W. Miziolek
Numerical simulations of the combustion of a number of fuels; (CH,, CH,OH, C2H,, GH, and C&J in air, in the presence and absence of fire suppressants, (CF,Br, CFJ, CF,, Cm3, GF6, and QF5H) have been carried out The simulations considered reactions in a

Suppression of Ignition Over a Heated Metal Surface

September 10, 1995
Author(s)
Anthony P. Hamins, P. Borthwick, Cary Presser
The objective of this work is to investigate the effectiveness of various agents in suppressing flame ignition. Experiments were conducted to determine the amount of agent needed to suppress the ignition of a gaseous propane flow over a heated metal disk

Surface Wrinkling of Plasma-Exposed PDMS is Caused by Water Vapor Sorption: An Optical Environmental Sensor

June 18, 2025
Author(s)
Jack Douglas, Zain Ahmad, Tyagi Tyagi, Shuning Xiang, Jerry Heng, Pedro Patricio, Paulo Teixeira, Christopher Stafford, Joao T. Cabral
Wrinkling of polydimethylsiloxane (PDMS) has unlocked a plethora of technological applications, from tunable surface wetting to photonic response. Surface undulations with prescribed wavelength and amplitude are excited by in-plane mechanical compression

Giant Magnetoresistive Spin-Valve Transpinnor

October 12, 2021
Author(s)
S Bae, S Zurn, William F. Egelhoff Jr., P J. Chen, L Sheppard, E J. Torok, J H. Judy
… investigated for the first time using anti-ferromagnetic oxide exchange biased bottom GMR spin-valves and metallic …

Evidence Against Carbonization of the Thin-Film Filters of the Extreme Ultraviolet Variability Experiment onboard the Solar Dynamics Observatory

April 1, 2021
Author(s)
Charles Tarrio, Robert F. Berg, Thomas B. Lucatorto, Andrew Jones, Frank Eparvier, Brian Templeman, Donald Woodraska, Marie Dominique
In spite of strict limits on outgassing from organic materials, some spacecraft instruments making long-term measurements of solar extreme ultraviolet (EUV) radiation still suff er signi cant degradation. While such measures have reduced the rate of

Low-temperature growth of carbon nanotubes catalyzed by sodium-based ingredients

May 27, 2019
Author(s)
Renu Sharma, Richard Li, Erica F. Antunes, Estekke Cohen, Akira Kudo, Luiz Acauan, Wei-Chang D. Yang, Chih-Ming Wang, Kehang Cui, Andrew Liotta, Ananth G. Rajan, Jules Gardner, David C. Bell, Michael S. Strano, James A. Liddle, Brian L. Wardle
Nanoparticle-catalytic synthesis of carbon nanostructures is an attractive route for producing 1-dimensional carbon nanomaterials, such as carbon nanotubes1 (CNTs), in large enough quantities for their multifunctional capabilities to be applied in

Particulate Ceramic Composites: Their High-Temperature Creep Behavior

February 19, 2017
Author(s)
Sheldon M. Wiederhorn
Particulate composites, such as liquid-phase sintered silicon nitride and reaction-bonded silicon carbide, are being considered for use in applications where superior chemical and mechanical behavior at high temperatures are essential. Superior strength
Displaying 1951 - 1975 of 2289
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