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Displaying 426 - 450 of 632

The Thermal Character of a 1 m Methanol Pool Fire

February 27, 2020
Author(s)
Kunhyuk Sung, Jian Chen, Matthew Bundy, Marco G. Fernandez, Anthony Hamins
… The results showed that the radiative fraction was 0.22 ± 45% consistent with previous results. …

Structural and Magnetic Phase Transitions in Chromium Nitride Thin Films Grown by RF Nitrogen Plasma Molecular Beam Epitaxy

September 26, 2017
Author(s)
Khan Alam, Steven M.T. Disseler, William D. Ratcliff, Julie Borchers, Rodrigo Ponce-Perez, Gregorio H. Cocoletzi, Noboru Takeuchi, Andrew Foley, Andrea Richard, David C. Ingram, Arthur R. Smith
A magneto-structural phase transition is investigated in single crystal CrN thin films grown by rf plasma molecular beam epitaxy on MgO(001) substrates. While still within the vacuum environment following MBE growth, in-situ variable low-temperature

Real-time Photoluminescence Studies of Thin Film Formation in Organic Solar Cells

February 29, 2016
Author(s)
Sebastian Engmann, Felicia A. Bokel, Hyun W. Ro, Dean M. DeLongchamp, Lee J. Richter
We present a method to study the structural evolution of organic bulk-heterojunctions via real-time, in-situ, steady state photoluminescence (PL). In-situ PL, in combination with real-time transmission and reflection measurements, allowed us to

Effect of Acoustic Excitation on R134a/Al2O3 Nanolubricant Mixture Boiling on a Reentrant Cavity Surface with Extensive Measurement and Analysis Details

August 6, 2014
Author(s)
Mark A. Kedzierski, Steven E. Fick
… five different applied power levels were studied: 0 W, 4 W, 6 W, 8 W, and 12 W. The largest and smallest average … 15 % and 2.5 % for an applied power level of 6 W and 4 W, respectively. In-situ insonation at 1 MHz resulted in an … heat fluxes greater than 25 kWm-2, the model was within 4.5 % of the measured heat flux ratios for mixtures for all …

Vibrational modes of GaN nanowires in the gigahertz range

November 13, 2012
Author(s)
Ward L. Johnson, Sudook A. Kim, Roy H. Geiss, Colm Flannery, Kristine A. Bertness, Paul R. Heyliger
… analysis of vibrational spectra in the range of 5 GHz to 45 GHz of an array of monocrystalline GaN nanowires with … peaks with acoustic angular wavenumbers in the range of 4/microns to ~15/microns were determined to arise from modes …

SSE- and Noise-Optimized InGaAs Radiation Thermometer

October 16, 2008
Author(s)
Howard W. Yoon, Charles E. Gibson, V B. Khromchenko, George P. Eppeldauer
… achromatic objective lens with low scatter that images a 4.5 mm diameter spot at a distance of 50 cm away from the … A 3 mm diameter InGaAs detector is cooled to 85 ?C using a 4-stage thermoelectric cooler to obtain high-shunt resistance …

Temperature-Induced Structural Changes in Putidaredoxin: A Circular Dichroism and UV-VIS Absorption Study

June 1, 2004
Author(s)
Vytautas Reipa, Marcia J. Holden, M P. Mayhew, V L. Vilker
… temperature dependencies, occurring at 16.3 C 0.5 C and 28.4 C 0.5 C. The 16.3 C transition is attributed to the … sulfur atom and Aspartate 38. The transition at 28.4 C occurs exclusively in the Pdx ox at very nearly the same … hydrogen bonding between iron ligating cysteines 45, 39 and residues threonine 47, serine 44 causes the 28.4 C …

Studies of Biometric Fusion Executive Summary

April 19, 2004
Author(s)
Craig I. Watson, Brad Ulery, R. A. Hicklin, William Fellner, P Halinan
… enrollment of two samples rather than one resulted in a 45-72% reduction in false reject rate. Multi-algorithm fusion …
Displaying 426 - 450 of 632
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