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Displaying 22801 - 22825 of 143775

Simulation-aided Correlations for the Dielectric Constant of H2S, SO2, and SF6

August 16, 2017

Author(s)

Allan H. Harvey, Raymond D. Mountain

A new method is developed for correlating the static dielectric constant of polar fluids over wide ranges of conditions where few experimental data exist. Molecular dynamics simulations are used to establish the temperature and density dependence of the

Two-Directional Operation of Bistable Latchable Micro Switch Actuated by a Single Electrode

August 16, 2017

Author(s)

Lior Medina, Rivka Gilat, Robert Ilic, Slava Krylov

Curved micromechanical beams are a versatile platform for exploring multistable behavior, with potential applications in mechanical based logic and switching. Here we demonstrate bidirectional electrostatic actuation of a bistable, latched, micromechanical

Dynamics of Entangled Polymers Confined between Graphene Oxide Sheets as Studied by Neutron Reflectivity

August 15, 2017

Author(s)

Ki-In Choi, Tae-Ho Kim, Guangcui Yuan, Sushil K. Satija, Jaseung Koo

For graphene-based composites, polymer dynamics confined between graphene sheets is a key parameter governing the oeverall mechanical properties of the bulk materials. Here, we used neutron reflectivity to measure the diffusion dynamics of polymer melts

Modulus of continuity eigenvalue bounds for homogeneous graphs and convex subgraphs with applications to quantum Hamiltonians

August 15, 2017

Author(s)

Stephen P. Jordan, Michael Jarret

We adapt modulus of continuity estimates to the study of spectra of combinatorial graph Laplacians, as well as the Dirichlet spectra of certain weighted Laplacians. The latter case is equivalent to stoquastic Hamiltonians and is of current interest in both

Single Molecule Nanopore Spectrometry for Peptide Detection

August 15, 2017

Author(s)

Amy Chavis, Joseph Robertson, Joseph E. Reiner, Kyle Brady, Grrace Hatmaker, Nuwan Kothalawala

Sensing and characterization of water-soluble peptides is of critical importance in a wide variety of bioapplications. Single molecule nanopore spectrometry (SMNS) is based on the idea that one can use biological protein nanopores to resolve different

A mixture of two self- and mutually-associating liquids. I. Phase behavior, second virial coefficients, and entropy-enthalpy compensation in the free energy of mixing

August 14, 2017

Author(s)

Jack F. Douglas, Jacek Dudowicz, Karl Freed

The theoretical description of the phase behavior of polymers dissolved in binary mixtures of water and other miscible solvents is greatly complicated by the self- and mutual-association of the solvent molecules. As a first step in treating these complex

Epitaxially-grown self-assembled Bi2Se3/Bi2MnSe4 multilayer heterostructures

August 14, 2017

Author(s)

Joseph A. Hagmann, Xiang Li, Si-Ning Dong, Sergei Rouvimov, Sujitra J. Pookpanratana, Kin Man Yu, Tatyana Orlova, Curt A. Richter, David G. Seiler, Xinyu Liu, Jacek K. Furdyna, Margaret Dobrowolska

Progress in understanding topologically non-trivial systems offers the promise of predicting novel systems that demonstrate the remarkable properties associated with topological systems, such as unidirectional spin-polarized surface current and the

Evaluating the quality of a cell counting measurement process via a dilution series experimental design

August 14, 2017

Author(s)

Sumona Sarkar, Steven Lund, Ravi Vyzasatya, Padmavathy Vanguri, John T. Elliott, Anne Plant, Sheng Lin-Gibson

Cell counting measurements (methods to determine cell quantity) are critical in the research, development, and manufacturing of cell-based products and support decision making in product testing and release. Determining cell quantity with accuracy and

In Situ Neutron Transmission Bragg Edge Measurements of Strain Fields Near Fatigue Cracks Grown in Air and in Hydrogen

August 14, 2017

Author(s)

Matthew Connolly, Peter Bradley, Andrew Slifka, Elizabeth S. Drexler

In situ transmission Bragg edge measurements of the strain field were performed near cracks grown in air and in hydrogen. Through the use of a novel test chamber which is capable of pressurization with hydrogen gas, and amenable to neutron-scattering

A Photonic MEMS Accelerometer with a Low-Finesse Hemispherical Microcavity Readout

August 13, 2017

Author(s)

Yiliang Bao, Feng Zhou, Thomas W. LeBrun, Jason J. Gorman

This paper describes the design, fabrication, and testing of a photonic MEMS accelerometer that uses a hemispherical microcavity to transduce the motion of the proof mass. The cavity design provides stable operation that is relatively tolerant of

Development of large aperture projection scatterometry for catalyst loading evaluation in proton exchange membrane fuel cells

August 12, 2017

Author(s)

Michael T. Stocker, Bryan M. Barnes, Martin Y. Sohn, Eric S. Stanfield, Richard M. Silver

Widespread commercialization of proton exchange membrane fuel cells remains curbed by various manufacturing and infrastructure challenges. One such technical barrier identified by the U. S. Department of Energy is the need for high-speed, in-line process

Characterization of the Dimensions of Internal Gap in a Glass Artifact Using a Laser Triangulation Probe

August 11, 2017

Author(s)

Wei Ren, Theodore D. Doiron, John R. Stoup, Eric S. Stanfield

High-accuracy Coordinate Measuring Machine (CMM) is always a good option to measure the dimensions on a variety of artifacts. However, due to the large length-to-width ratio of the cuvettes, a CMM is unable to measure the gaps of cuvettes. Therefore, a non

Corrigendum to 'U.S. Population Data for 29 Autosomal STR Loci' [Forensic Sci. Int. Genet. 7 (2013) e82-e83]

August 11, 2017

Author(s)

Carolyn R. Steffen, Michael D. Coble, Katherine Gettings, Peter Vallone

Critically Evaluated Energy Levels, Spectral Lines, Transition Probabilities, and Intensities of Neutral Vanadium (V I)

August 11, 2017

Author(s)

Alexander Kramida, Edward B. Saloman

The energy levels, observed spectral lines, and transition probabilities of the neutral vanadium atom, V I, have been compiled. Also included are values for some forbidden lines which may be of interest to the astrophysical community. Experimental Landé g

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