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Displaying 4601 - 4625 of 13217

The Eighth Industrial Fluid Properties Simulation Challenge

January 31, 2016
Author(s)
Daniel Siderius, Vincent K. Shen, Raymond D. Mountain, Nathan E. Schultz, Riaz Ahmad, John K. Brennan, Kevin A. Frankel, Jonathan D. Moore, Richard B. Ross, Matthias Thommes, Kenneth D. Smith
… methods to predict the adsorption of organic adsorbates in activated carbon materials. In particular, the eighth challenge focused on the adsorption of perfluorohexane in the activated carbon BAM-109. Entrants were challenged to … Adsorption Science & Technology …

Practical limitations of aerosol separation by a tandem differential mobility analyzeraerosol particle mass analyzer

January 4, 2016
Author(s)
James G. Radney, Christopher D. Zangmeister
… particle counter were used to investigate the limitations in the separation of singly and multiply charged aerosol … affects the isolation of the singly charged particles. In cases where the DMA?APM was unable to fully resolve the … the peak mass deviated by up to 13% leading to errors in the mass specific extinction cross section of over 100%. …

Polyester composite water uptake and organic contaminant release affected by carbon nanofiber reinforcements

January 1, 2016
Author(s)
Aaron Forster, Maryam Salehi, Kuang-Ting Hsiao, Andrew J. Whelton
… to a polyester only sample. Specimens were immersed in water for 30 days under nominal pressure at 23 °C, below … of water chemistry which is similar to exposures in flowing systems. Composite mass and water quality were … reduced water absorption due to the reduction in the resin volume fraction in the composite. The addition …

Urinary iodine and stable isotope analysis to examine habitat influences on thyroid hormones among coastal dwelling American alligators

December 9, 2015
Author(s)
Ashley S. Boggs-Russell, Heather J. Hamlin, James C. Nifong, Brittany L. Kassim, Russell H. Lowers, Thomas M. Galligan, Stephen E. Long, Louis J. Guillette Jr.
… alligator, a freshwater species, is known to forage in marine environments which could lead to increased dietary … hormones. Alligators under 135 SVL exhibited seasonality in thyroid hormones and a positive relationship between UI … Both techniques demonstrate that adult alligators in coastal environments are utilizing estuarine/marine …

Quantification of Nanoparticle Release from Polymer Nanocomposite Coatings due to Environmental Stressing

December 8, 2015
Author(s)
Yeon S. Kim, Nasir M. Uddin, Marc R. Nyden, Richard H. Harris Jr., Savelas A. Rabb, Rick D. Davis
… (ENP) reduce the flammability of components used in soft furnishings (mattresses and upholstered furniture). … basis for assessing their health and environmental impact. In this manuscript, we report on our efforts to identify … applied to the surfaces of BF and PUF. The ENPs released in simulated chewing and mechanical stressing experiments …

Applications of the Spline Filter for Areal Filtration

November 4, 2015
Author(s)
D Ott, Hao H. Zhang, Daniel B. Ott, Wei Chu, Jun-Feng Song
… which replace the first order finite difference in the traditional spline formulation. These improvements … surfaces and extend the applications of the spline filter in areal filtration. … Measurement Science & Technology …

The Fiber Break Evolution Process in a 2-D Epoxy/Glass Multi-Fiber Array

November 2, 2015
Author(s)
Edward D. McCarthy, Jae H. Kim, N. Alan Heckert, Stefan D. Leigh, Jeffrey W. Gilman, Gale A. Holmes
… at the critical fragment length. Because the IFSS is used in unidirectional composite models to predict strength and … of a single isolated fiber has often been questioned. In this paper, the spatial distribution of fiber breaks in a 2-D array of glass fibers is compared with break …

Abiotic bromination of soil organic matter

October 15, 2015
Author(s)
Bruce D. Ravel, Alessandra C. Leri
… One such reaction is halogenation, which occurs naturally in the soil environment and has been associated with … that naturally produced organobromine is ubiquitous in SOM, we hypothesized that inorganic bromide could be subject to abiotic oxidations resulting in bromination of SOM. Through lab-based degradation …

Analysis of the Boundary Conditions of the Spline Filter

July 21, 2015
Author(s)
D Ott, Hao H. Zhang, Daniel B. Ott, Xuezeng Zhao, Jun-Feng Song
… filter, and propose a set of new boundary conditions in this paper. The new boundary conditions can provide … Measurement Science and Technology …

Local Strain Exerted on Nb 3 Sn Filaments in an ITER Strand

March 13, 2015
Author(s)
Kozo Osamura, Shutaro Machiya, Stefanus Harjo, Tatsushi Nakamoto, Najib Cheggour, Arend Nijhuis
… for measuring the strain dependence of critical current in ITER Nb 3 Sn strands, direct measurement of local strain … Superconductor Science and Technology … Local Strain Exerted on Nb 3 Sn Filaments in an ITER Strand …

A Review of Test Methods for Determining Protective Capabilities of Fire Fighter Protective Clothing from Steam

February 26, 2015
Author(s)
Shonali Nazare, Christopher W. Meyer, Daniel M. Madrzykowski
… “steam burns.” The water vapor can come from humidity in the burning-structure environment that penetrates through … the FFPC, where it is vaporized from a flashover exposure. In this technical note, we review existing test methods for … steam burns and evaluating moisture-driven heat transfer in protective clothing are reviewed, with an emphasis on the …

Pyrolysis Smoke Generated Under Low-Gravity Conditions

January 17, 2015
Author(s)
Jiann C. Yang, Thomas G. Cleary, George W. Mulholland, D L. Urban, Gary A. Ruff, Zeng-guang Yuan, Marit Meyer, Victoria Bryg
… A series of smoke experiments were carried out in the Microgravity Science Glovebox on the International … of the smoke aerosol. This information will be used in the design of better fire detection for spacecraft. The … five different materials (all polymers) commonly used in space vehicles. They were characterized by the measurement …

Measurement of the Gold-Gold Bond Rupture Force at 4 K in a Single-Atom Chain Using Photon-Momentum-Based Force Calibration

December 22, 2014
Author(s)
Douglas T. Smith, Jon R. Pratt
… accurate, traceable measurements of force and displacement in nanometer- and atomic-scale mechanical deformation … and measures cantilever stiffness at the contact point in situ at 4 K using photon momentum. We present preliminary … made of the force required to rupture a single atomic bond in a gold single-atom chain formed between a gold flat and a …

High-Power and High-Linearity Photodetector Modules for Microwave Photonic Applications

October 15, 2014
Author(s)
Frederick N. Baynes, Efthymios Rouvalis, Xiaojun Xie, Qiugui Zhou, Franklyn J. Quinlan, Tara M. Fortier, Scott A. Diddams, Andreas G. Steffan, Andreas Beling, Joe C. Campbell
… carrier photodiode (MUTC-PD) with superior performance in terms of output power and saturation. To further improve … a 3-dB bandwidth ranging from 17 GHz up to 30 GHz. In continuous wave mode of operation, very high RF output … 25 dBm at 10 GHz, 22 dBm at 20 GHz and 17 dBm at 30 GHz. In addition, the linearity of the modules was characterized …

A perspective on the origin of lubricity in petroleum distillate motor fuels

September 15, 2014
Author(s)
Peter Y. Hsieh, Thomas J. Bruno
… effect on friction and wear between two surfaces in relative motion, is affected by both chemical and physical … motor fuels stems from surface-active compounds found in petroleum, principally heavy aromatic compounds such as … or more fused rings. These compounds are least abundant in motor gasoline and most abundant in diesel fuel due to …

Afterpulse reduction through prompt quenching in silicon reach-through single-photon avalanche diodes

August 13, 2014
Author(s)
Michael A. Wayne, Joshua C. Bienfang, Allessandro Restelli, P. G. Kwiat
… Reducing afterpulsing in single-photon avalanche diodes (SPADs) allows operation … recovery times and higher detection rates. Afterpulsing in SPADs can be reduced by reducing the total avalanche … and with prompt quenching we observe reductions in afterpulse probability of as much as a factor of 12. …

Effects of Lateral Tip Control in CD-AFM Width Metrology

August 12, 2014
Author(s)
Ronald G. Dixson, Boon Ping Ng, Ndubuisi G. Orji
… involves lateral dither of the tip, which was the case in the first two generations of CD-AFM. Current, … fast response piezo actuator are used to position the tip in a manner that resembles touch-triggering of coordinate … procedure. However, the possibility exists of small errors in the estimated tip width due to variations and dependencies …

BPMN Profile for Operational Requirements

June 2, 2014
Author(s)
Conrad E. Bock, Raphael Barbau, Anantha Narayanan Narayanan
… external to systems usually involve people not trained in the details of how systems are designed and built, but who … the procedures they will be performing. People involved in external behaviors prefer different languages for … An emerging trend is for external behaviors to be defined in the Business Process Model and Notation, especially …

Flame Inhibition by CF3CHCl2 (HCFC-123)

May 20, 2014
Author(s)
Valeri I. Babushok, Gregory T. Linteris, Oliver Meier, John Pagliaro
… Calculated burning velocities using the kinetic model are in good agreement with available experimental burning … Combustion Science and Technology …
Displaying 4601 - 4625 of 13217
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