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Displaying 20151 - 20175 of 73751

Structure and Properties of a-NaFeO 2 -type Ternary Sodium Iridates

February 1, 2014
Author(s)
Kristen Baroudi, Cindi Yim, Hui Wu, Qingzhen Huang, John H. Roudebush, Eugenia Vavilova, Hans-Joachim Grafe, Vladislav Kataev, Bernd Buechner, Huiwen Ji, Changyang Kuo, Zhiwei Hu, Tun-Wen Pi, Chiwen Pao, Jyhfu Lee, Daria Mikhailova, Liu Hao Tjeng, R. J. Cava
The synthesis, structure, and elementary magnetic and electronic properties are reported for layered compounds of the type Na 3-xMIr 2O 6 and Na 3-xM 2IrO 6, where M is a transition metal from the 3d series (M=Zn, Cu, Ni, Co, Fe and Mn). The rhombohedral

The effect of Acetobacter sp. and a sulfate-reducing bacterial consortium from ethanol fuel environments on fatigue crack propagation in pipeline and storage tank steels

February 1, 2014
Author(s)
Jeffrey W. Sowards, Charles H. Williamson, Timothy S. Weeks, Joseph D. McColskey, John R. Spear
This study evaluated the effects of microbiologically influenced corrosion (MIC) on fatigue crack growth of candidate materials useful in expanding bioethanol usage including: a storage tank steel (ASTM A36) and two pipeline steels (API 5L X52 and X70)

The Hafnium-Platinum Phase Diagram

February 1, 2014
Author(s)
Judith K. Stalick, Richard M. Waterstrat
Phase relationships were determined in the Hf-Pt system at temperatures up to 1690°C using both metallographic and neutron Rietveld refinement techniques. An unusual displacive transformation is observed 200 °C in the rhombohedral compound Hf 3Pt 4

A multicomponent phase-field model for extremely large partition coefficients

January 31, 2014
Author(s)
Michael J. Welland, Dieter Wolf, Jonathan E. Guyer
We develop a multi-component phase-field model specially formulated to robustly simulate concentration variations from molar to atomic magnitudes across an interface, i.e.: partition coefficients in excess of 10 (superscript 10plus23) such as may be the

Bounds on Elementary Symmetric Functions

January 31, 2014
Author(s)
Andrew L. Rukhin
Tight bounds on an elementary symmetric function are established for given values of these polynomials of lower order.

Effect of Capping Material on Interfacial Ferromagnetism in FeRh Thin Films

January 31, 2014
Author(s)
C. Baldasseroni, G. K. Palsson, C. Bordel, S. Valencia, A. A. Unal, F. Kronast, S. Nemsak, C. S. Fadley, Julie Borchers, Brian B. Maranville, F. Hellman
The role of the capping material in stabilizing a thin ferromagnetic layer at the interface between an FeRh film and cap in the nominally antiferromagnetic phase at room temperature was studied by x-ray magnetic circular dichroism in photoemission electron

Estimation of the Limit of Detection Using Information Theory Measures

January 31, 2014
Author(s)
Alexander (. Vergara Tinoco, Fonollosa Jordi, Huerta Ramon, Santiago Marco
Definitions of the Limit of Detection (LoD) based on the probability of false positive and/or false negative errors have been proposed over the past years. Although such definitions are straightforward and valid for any kind of analytical system, the

Analysis for Dynamic Metrology

January 30, 2014
Author(s)
Andrew M. Dienstfrey, Paul D. Hale
Diverse measurement contexts require estimates of time varying quantities. Ideally the measurement device responds to signal variations significantly more rapidly than the modulation of the signal itself. If so, then well-developed techniques may be used

Measurement Science R&D Roadmap for Windstorm and Coastal Inundation Impact Reduction

January 30, 2014
Author(s)
William Coulbourne, Jon Galsworthy, Horia Hangan, Christopher Jones, Chris Letchford, Thomas Smith
Windstorms, storm surge, and other coastal inundation events caused 4,045 fatalities and property losses of $250 billion (in 2012 dollars) in the United States during the period of 1996-2012. More people are moving toward the nation's coastlines and thus

Strong coupling of single emitters interacting with phononic infrared antennae

January 30, 2014
Author(s)
Ruben Esteban, Javier Aizpurua, Garnett W. Bryant
A single emitter can couple with an electromagnetic mode excited in dielectric cavities or metallic particles. In a similar manner, it can couple with a phononic mode supported by a nearby infrared antenna. We consider an emitter with a sufficiently large

The neural representation of faces and bodies in motion and at rest

January 29, 2014
Author(s)
P J. Phillips, Alice O'Toole, Vaidehi Natu, Xiaobo An, Rice Allyson, James Ryland
The neural organization of person processing relies on brain regions functionally selective for faces or bodies, with a subset of these regions preferring moving stimuli. Although the response properties of the individual areas are well established, less

Quantum teleportation from a telecom-wavelength photon to a solid-state quantum memory

January 28, 2014
Author(s)
Felix Bussieres, Christoph Clausen, Alexey Tiranov, Boris Korzh, Varun Verma, Sae Woo Nam, Francesco Marsili, Alban Ferrier, Harald Hermann, Christine Silberhorn, Wolfgang Sohler, Mikael Afzelius, Nicolas Gisin
In quantum teleportation [1], the state of a single quantum system is disembodied into classical information and purely quantum correlations, to be later reconstructed onto a second system that has never directly interacted with the first one. This
Displaying 20151 - 20175 of 73751
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