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Displaying 16376 - 16400 of 74178

Characterization of clay composite ballistic witness materials

July 29, 2015
Author(s)
Jonathan E. Seppala, Yoonae Heo, Paul E. Stutzman, John R. Sieber, Chad R. Snyder, Kirk D. Rice, Gale A. Holmes
Mechanical and thermal properties of Roma Plastilina Clay #1 (RP1) were studied through small-amplitude oscillatory shear (SAOS), large-amplitude oscillatory shear (LAOS), and differential scanning calorimetry (DSC), supplemented with thermogravimetric

Comprehensive Study of the Thermodynamic Properties for 2-Methyl-3-buten-2-ol

July 29, 2015
Author(s)
Dzmitry H. Zaitsau, Eugene Paulechka, Dzmitry S. Firaha, Andrey V. Blokhin, Gennady J. Kabo, Ala Bazyleva, Andrey G. Kabo, Mikhail A. Varfolomeev, Viktor M. Sevruk
The heat capacity of 2-methyl-3-buten-2-ol over the interval (5 to 370) K was measured in an adiabatic calorimeter. The standard entropy and heat capacity of liquid phase at reference temperature 298.15 K were found to be Som = (232.6 ± 1.0) J·K-1·mol-1

SIMULATIONS TO CHARACTERIZE A PASSIVE MICROWAVE BLACKBODY DESIGN

July 29, 2015
Author(s)
Derek A. Houtz, Dave K. Walker, Dazhen Gu
This paper discusses the design of a microwave blackbody to be used as a primary laboratory standard for passive remote sensing applications. The design is required to have excellent performance over the frequencies ranging from 10 GHz to 220 GHz and will

The IAPWS Industrial Formulation for the Thermodynamic Properties of Seawater

July 29, 2015
Author(s)
Allan H. Harvey, H J. Kretzschmar, Rainer Feistel, Wolfgang Wagner, Kiyoshi Miyagawa, J R. Cooper, Michael Hiegemann, Francisco L. Blangetti, Konstantin A. Orlov, I Weber, Anurag Singh, Sebastian Herrmann
In 2008, the International Association for the Properties of Water and Steam (IAPWS) adopted a standard formulation for the thermodynamic properties of seawater as a sum of contributions to the Gibbs free energy from pure water and from dissolved sea salt

Production, Purification and Characterization of 15N-Labeled DNA Repair Proteins as Internal Standards for Mass Spectrometric Measurements

July 26, 2015
Author(s)
Prasad T. Reddy, Pawel Jaruga, Bryant C. Nelson, Mark Lowenthal, Ann-Sofie Jemth, Olga Loseva, Erdem Coskun, Thomas Helleday, Miral M. Dizdar
Oxidatively induced DNA damage is caused in living organisms by a variety of damaging agents, resulting in the formation of a multiplicity of lesions, which are mutagenic and cytotoxic. Unless repaired by DNA repair mechanisms before DNA replication, DNA

Self-referencing a CW laser with efficient nonlinear optics

July 26, 2015
Author(s)
Scott B. Papp, Katja M. Beha, Daniel C. Cole, Pascal P. Del'Haye, Aurelien C. Coillet, Scott A. Diddams
We phase-coherently measure the frequency of continuous-wave (CW) laser light by use of optical-phase modulation and 'f-2f' nonlinear interferometry. Periodic electro-optic modulation (EOM) transforms the CW laser into a continuous train of picosecond

Electric Field Control of Interfacial Ferromagnetism in CaMnO 3 /CaRuO 3 Heterostructures

July 24, 2015
Author(s)
Alexander J. Grutter, Brian J. Kirby, M. T. Gray, C. L. Flint, U. S. Alaan, Y. Suzuki, Julie A. Borchers
A key milestone for the development of low-power spintronic devices is electric field control of ferromagnetism. To that end, we have probed the electric field dependence of the emergent ferromagntic layer at CaRuO 3/CaMnO 3 interfaces in bilayers

Measuring Systematic and Random Error in Digital Forensics

July 24, 2015
Author(s)
Alexander J. Nelson, Simson L. Garfinkel
Recognized sources of error in digital forensics include systematic errors arising from implementation errors, and random errors resulting from faulty equipment. But as digital forensic techniques expand to include statistical machine learning, another

Systematic Measurement of Marginal Mark Types on Voting Ballots

July 24, 2015
Author(s)
Andrea V. Bajcsy, Ya-Shian Li-Baboud, Mary C. Brady
The presence of marginal marks on voting ballots is a ubiquitous problem in voting systems and it is a common source of dispute during federal and state-level elections. As of today, marginal marks are neither clearly countable as votes or as non-votes by

Development of an Ultra-Pure, Carrier-Free 209Po Solution Standard

July 23, 2015
Author(s)
Ronald Colle, Ryan P. Fitzgerald, Lizbeth Laureano-Perez
Ultra-pure, carrier-free 209Po solution standards have been prepared and standardized for their massic alpha-particle emission rate. The standards, which will be disseminated by the National Institute of Standards and Technology (NIST) as Standard

Role of Elastic Strain on Electrocatalysis of Oxygen Reduction Reaction on Pt

July 23, 2015
Author(s)
Gery R. Stafford, Vijay Sethuraman, Deepa Vairavapandian, Manon C. Lafouresse, Tuhina Maark, Naba Karan, Shouheng Sun, Ugo Bertocci, Andrew Peterson, Pradeep Guduru
The effect of elastic strain on catalytic activity of platinum (Pt) towards oxygen reduction reaction (ORR) is investigated through de-alloyed Pt-Cu thin films; stress evolution in the de-alloyed layer and the mass of the Cu removed are measured in real

Techniques to Evaluate Laser Scanners for Advanced Manufacturing Applications

July 23, 2015
Author(s)
Prem K. Rachakonda, Balasubramanian Muralikrishnan, Katharine M. Shilling, Daniel S. Sawyer, Geraldine S. Cheok, Kamel S. Saidi
Laser scanners have become indispensable tools for fast and accurate 3D image acquisition applications such as part inspection, reverse engineering, cultural heritage digitization, surveying, automotive robotic navigation etc. The Dimensional Metrology

A Chemical Kinetic Mechanism for 2-Bromo-3,3,3-trifluoropropene (2-BTP) Flame Inhibition

July 22, 2015
Author(s)
Donald R. Burgess Jr., Valeri I. Babushok, Gregory T. Linteris, Jeffrey A. Manion
The present paper is concerned with the development of a detailed chemical kinetic mechanism to describe the flame inhibition chemistry of the fire suppressant 2-bromo-3,3,3-trifluoropropene (2-BTP). Currently 2-BTP is considered as a fire suppressant to

Advanced ACTPol Multichroic Polarimeter Array Fabrication Process for 150 mm Wafers

July 22, 2015
Author(s)
Shannon M. Duff, Gene C. Hilton, Johannes Hubmayr, James A. Beall, Jason E. Austermann, Daniel T. Becker, Jeffrey L. Van Lanen
Advanced ACTPol is a third generation cosmic microwave background (CMB) receiver, deploying in 2016 on the Atacama Cosmology Telescope (ACT) in the Atacama desert of Chile. Spanning five frequency bands from 25 – 280 GHz and having a total of nearly 5800
Displaying 16376 - 16400 of 74178