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Displaying 17876 - 17900 of 73929

Using Check Standard Data to Simplify Uncertainty Estimates

July 1, 2015
Author(s)
Theodore D. Doiron
Uncertainty has proven difficult to implement in calibrations labs. The subject has mathematics and statistics that are part of normal scientific research but are seldom found among working metrologists in small calibration labs. There is, however, a

Applying Thymine Isostere 2,4-Difluoro-5-methylbenzene as an Assignment Tool and Probe of Purine-rich DNA Dynamics Using Proton NMR Spectroscopy

June 30, 2015
Author(s)
Robert G. Brinson, Jennifer T. Miller, Kahn Jason, Stuart F. Le Grice, John P. Marino
Proton assignment of NMR spectra of oligonucleotide duplexes can become difficult with increasing helical length due to cross peak overlap. Here we describe an alternative to 15N and 13C labeling that facilitates assignment via single site substitution

Deuteration in Biological Neutron Reflectometry

June 30, 2015
Author(s)
Frank N. Heinrich
Neutron reflectometry is uniquely positioned in structural biology, because of its ability to characterize biomimetic interfacial architectures like lipid membranes and membrane-associated proteins non-destructively and in their native environment

Development of the IES method for evaluating the color rendition of light

June 30, 2015
Author(s)
Yoshihiro Ohno, Aurelien David, Kevin Houser, Minchen Wei, Michael Royer, Kevin Smet, Lorne Whitehead
We have developed a two-measure system for evaluating light sources’ color rendition that builds upon conceptual progress of numerous researchers over the last two decades. The system quantifies the color fidelity and color gamut (i.e. change in object

Longitudinal Study of Fingerprint Recognition

June 30, 2015
Author(s)
Soweon Yoon, Anil Jain
Human identification by fingerprints is based on the fundamental premise that ridge patterns from distinct fingers are different (uniqueness) and a fingerprint pattern does not change over time (persistence). While the uniqueness of fingerprints has been

Measuring Limits on the Ability of Colluding Countries to Partition the Internet

June 30, 2015
Author(s)
Peter M. Mell, Richard Harang, Assane Gueye
We show that the strength of Internet-based network interconnectivity of countries is increasing over time. We then evaluate bounds on the extent to which a group of colluding countries can disrupt this connectivity. We evaluate the degree to which a group

Preface: Special Issue on Knowledge Driven Robotics and Manufacturing

June 30, 2015
Author(s)
Craig I. Schlenoff, Stephen B. Balakirsky, Edson Prestes
State-of-the-art robots are capable of sub-millimeter movement accuracy. However, they are often programmed by an operator using crude positional controls from a teach pendent. Reprogramming these robots when their task is altered requires that the robot

Sharp interface model of creep deformation in crystalline solids

June 30, 2015
Author(s)
Yuri Mishin, Geoffrey B. McFadden, Robert F. Sekerka, William J. Boettinger
We present a rigorous irreversible thermodynamics treatment of creep deformation of solid mate- rials with interfaces described as geometric surfaces capable of vacancy generation and absorption and moving under the influence of local thermodynamic forces

X-ray Powder Diffraction Studies of (BaxSr1-x)2Co2Fe12O22 and (BaxSr1-x)Co2Fe16O27

June 30, 2015
Author(s)
Winnie K. Wong-Ng, Guangyao Liu, Yonggao Yan, Kevin R. Talley, James A. Kaduk
X-ray structural characterization and X-ray reference powder patterns have been determined for two series of iron- and cobalt-containing layered compounds, namely, (BaxSr1-x)2Co2Fe12O22 (x = 0.2, 0.4, 0.6, 0.8) and (BaxSr1-x)Co2Fe16O27 (x = 0.2, 0.4, 0.6

Evolution of gamma/gamma-prime Microstructure in Ternary Co-Al-W Alloys

June 29, 2015
Author(s)
Eric Lass, Yaakov S. Idell, Carelyn E. Campbell, Ursula R. Kattner
The discovery of a two-phase γ (FCC)-γ' (L12) field in the ternary Co-Al-W phase diagram has sparked significant research interest into possible Co-based analogs to traditional Ni-based superalloys used in turbine engine applications. This work

High-dimensional hyperentanglement of mode-locked two-photon states

June 29, 2015
Author(s)
Zhenda Xie, Tian Zhong, Sajan Shrestha, XinAn Xu, Junlin Liang, Yan-Xiao Gong, Alessandro Restelli, Jeffrey Shapiro, Franco N. Wong, Chee Wei Wong, Joshua Bienfang
Quantum entanglement is the fundamental resource for quantum information processing and communications, including secure data rates with higher capacities and better error resilience [1-9]. In dense-coded quantum communication channels, it is desirable to

PIXEL FUSION BASED STEREO IMAGE RETARGETING

June 29, 2015
Author(s)
Hamid Gharavi
Image retargeting attempts to adapt images to different devices while preserving the salient contents. Most existing methods address retargeting of a single image. In this paper, we propose a novel image retargeting method for resizing a pair of stereo

Advances in the Development of OpenCalphad Software and Databases

June 28, 2015
Author(s)
Bo Sundman, Ursula R. Kattner, Mauro Palumbo, Suzana G. Fries
Thermodynamics is at the core of materials science. The Calphad method, a powerful tool for materials design and engineering applications, has been shown to be an excellent platform for linking experiments and theoretical, quantum mechanics based results

Phase Equilibria and Crystal Chemistry of the CaO-?Sm2O3-CoOz System at 885 degC in Air

June 27, 2015
Author(s)
Winnie K. Wong-Ng, William J. Laws, Saul H. Lapidus, James A. Kaduk
The CaO-¿Sm2O3-CoOz system prepared at 885 °C in air consists of two calcium cobaltate compounds, namely, the 2D thermoelectric oxide solid solution, (Ca3-xSmx)Co4O9-z (0 x 0.5) which has a misfit layered structure, and the 1D Ca3Co2O6 which consists of

Resonant interaction of trapped cold atoms with a magnetic cantilever tip

June 26, 2015
Author(s)
John E. Kitching, Chris Montoya, Jose Valencia, Andrew A. Geraci, Matt Eardley, John M. Moreland
Magnetic resonance in an ensemble of laser-cooled trapped Rb atoms is excited using a micro cantilever with a magnetic tip. The cantilever is mounted on a multi-layer atom chip designed to capture, cool, and magnetically transport cold atoms. The coupling
Displaying 17876 - 17900 of 73929
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