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Displaying 17801 - 17825 of 73929

Formic Acid oxidation on platinum- a simple mechanistic study

July 15, 2015
Author(s)
Kathleen A. Schwarz, Ravishankar Sundararaman, Thomas P. Moffat, Thomas C. Allison
The oxidation of organic acids on noble metal sur-faces is of importance for industrial processes and of academic interest, but the basic reaction mechanisms continue to be a matter of debate. Historically, mechanisms involving the formic acid molecule

A simple and fast spline filtering algorithm for surface metrology

July 14, 2015
Author(s)
Hao H. Zhang, Daniel B. Ott, Jun-Feng Song, D Ott, Wei Chu
The spline filters and the corresponding robust filters are commonly used filters recommended in ISO standards for surface evaluation. Generally, these linear and non-linear spline filters, composed of symmetric, positive-definite matrices, are always

Fractionation and characterization of high aspect ratio gold nanorods using asymmetric-flow field flow fractionation and single particle inductively coupled plasma mass spectrometry

July 14, 2015
Author(s)
Thao M. Nguyen, Jingyu Liu, Vincent A. Hackley
Development of methods for the in situ fractionation and characterization of high aspect ratio (AR) gold nanorods (GNRs) is a rapidly growing area of interest within the nanotechnology field, particularly with respect to nanomanufacturing and biomedical

SIMULATION-BASED DESIGN CONCEPT EVALUATION FOR AMBULANCE PATIENT COMPARTMENTS

July 14, 2015
Author(s)
Deogratias Kibira, Yung-Tsun T. Lee, Jennifer L. Marshall, Allison Barnard Feeney, Larry Avery, Allie Jacobs
To address the inadequacy of existing standards regarding interior layout design, the Department of Homeland Security (DHS) Science and Technology Directorate, the National Institute of Standards and Technology (NIST), the National Institute for

An Itinerant Antiferromagnetic Metal Without Magnetic Constituents

July 13, 2015
Author(s)
E. Svanidze, Jiakui K. Wang, Tiglet Besara, L. Liu, Qingzhen Huang, T. Siegrist, Benjamin Frandsen, Jeffrey W. Lynn, Andriy H. Nevidomskyy, Monica Barbara Gamza, M.C. Aronson, Y.J. Uemura, E. Morosan
Itinerant and local moment magnetism have substantively different origins, and require distinct theoretical treatment. A unified theory of magnetism has long been sought after, and remains elusive, mainly due to the limited number of known itinerant

Spin Waves and Spatially Anisotropic Exchange Interactions in the S = 2 Stripe Antiferromagnet Rb 0.8 Fe 1.5 S 2

July 13, 2015
Author(s)
Meng Wang, P. Valdivia, Ming Yi, J. X. Chen, W. L. Zhang, R. A. Ewings, T. G. Perring, Yang Zhao, Leland Harriger, Jeffrey W. Lynn, E. Bourret-Courchesne, Pengcheng Dai, D. H. Lee, D. X. Yao, R. J. Birgeneau
An inelastic neutron scattering study of the spin waves corresponding to the stripe antiferromagnetic order in insulating Rb 0.8Fe 1.5S 2 throughout the Brillouin zone is reported. The spin wave spectra are well described by a Heisenberg Hamiltonian with

Strategies for Parallel Markup

July 12, 2015
Author(s)
Bruce R. Miller
Cross-referenced parallel markup for mathematics allows the combination of both presentation and content representations while associating the components of each. Interesting applications are enabled by such an arrangement, such as interaction with parts

Compact X-ray and Extreme-Ultraviolet Light Sources

July 10, 2015
Author(s)
Lahsen Assoufid, Uwe Arp, Patrick Naulleau, Sandra Biedron , William Graves
Bringing the brightness and power of vast synchrotron and free-electron laser sources to the scale of the lab and clinic marks an important next frontier—and could transform the landscape of X-ray science and technology.

Synthesis and Characterization of Bournonite PbCuSbS3 Nanocrystals

July 10, 2015
Author(s)
Kaya Wei, Joshua Martin, James Salvador, George S. Nolas
PbCuSbS3 nanocrystals were synthesized for the first time by a colloidal synthesis route and characterized by powder X-ray diffraction (XRD), transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDS). The particle size of

Developing Microwave Photonic Temperature Sensors

July 9, 2015
Author(s)
John S. Quintavalle, James Filla, Gregory F. Strouse, Zeeshan Ahmed
In recent years there has been considerable interest in exploiting the temperature dependence of sapphire whispering gallery mode frequency to develop a mechanically stable, high accuracy temperature sensor. Disk-resonator-based devices have been

Statistically background-free, phase-preserving parametric up-conversion with faint light

July 9, 2015
Author(s)
Yu-Hsiang Cheng, Tim O. Thomay, Glenn S. Solomon, Alan L. Migdall, Sergey Polyakov
We demonstrate phase preservation in a frequency up-conversion process at the single-photon level. This phase preservation enables the applications of frequency conversion of entangled photon pairs. Periodically poled lithium niobate waveguides and a 1550
Displaying 17801 - 17825 of 73929
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