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Journals

Structure and Stability of Phospholipid Bilayers Hydrated by a Room-Temperature Ionic Liquid/Water Solution: a Neutron Reflectometry Study

October 23, 2014

Author(s)

Antonio Benedetto, Frank Heinrich, Miguel A. Gonzalez, Giovanna Fragneto, Erik Watkins, Pietro Ballone

Neutron reflectometry measurements (NR) have been carried out to probe the structure and stability of two model bio-membranes consisting of POPC and DMPC

Magnetoencephalography of Epilepsy with a Microfabricated Atomic Magnetrode

October 22, 2014

Author(s)

Svenja A. Knappe, Orang Alem, Alex M. Benison, Daniel S. Barth, John E. Kitching

We measured the magnetic signature of epileptiform discharges with high signal-to-noise ratio, using microfabricated atomic magnetometers based on laser

Prediction and Validation of Diffusion Coefficients in a Model Drug Delivery System Using Microsecond Atomistic Molecular Dynamics Simulation and Vapor Sorption Analysis

October 21, 2014

Author(s)

Christopher Forrey, D M. Saylor, Joshua S. Silverstein, Jack F. Douglas, Eric Davis, Yossef A. Elabd

Diffusion of small to medium sized molecules in polymeric medical device materials underlies a broad range of public health concerns related to unintended

Beating the standard quantum limit for force sensing with coupled two-mode optomechanical system

October 21, 2014

Author(s)

Xunnong Xu, Jacob Taylor

Optomechanics provides a method to transduce weak forces to optical fields, with many e↵orts approach the standard quantum limit. We consider force sensing

Comparison of the performance of different models for the interpretation of low level mixed DNA profiles

October 21, 2014

Author(s)

Michael D. Coble, Todd Bille, Steven Weitz, John Buckleton, Jo Bright

DNA analyses from casework samples commonly result in complex DNA profiles. Often, these profiles consist of multiple contributors and display multiple

Tunable Cobalt Vacancies and Related Properties in LaCo_xAs₂

October 21, 2014

Author(s)

Shijie Shen, Gang Wang, Shifeng Jin, Qingzhen Huang, Tianping Ying, Dandan Li, Xiaofang Lai, Tingting Zhou, Han Zhang, Zhiping Lin, Xiaozhi Wu, Xiaolong Chen

The origin of transition metal vacancies and their effects on the properties of ThCr 2Si 2-type compounds have been less studied and poorly understood. Here we

Fast, high-fidelity, all-optical and dynamically-controlled polarization gate using room-temperature atomic vapor

October 21, 2014

Author(s)

Runbing Li, Chengjie Zhu, Lu Deng, Edward W. Hagley

We demonstrate a fast, all-optical polarization gate in a room-temperature atomic medium. Using a Polarization-Selective-Kerr-Phase-Shift (PSKPS) technique, we

Development and Applications of Non-destructive Screening Tools for Thermoelectric Materials at NIST

October 20, 2014

Author(s)

Winnie K. Wong-Ng, Yonggao Y. Yan, Joshua B. Martin, Makoto Otani, Evans L. Thomas, Xinfeng Tang, Martin L. Green

The increased research and development of thermoelectric materials for energy conversion applications is driven primarily by the need for improved efficiency in

Porous Metal-Organic Frameworks for Gas Storage and Separation: What, How and Why?

October 20, 2014

Author(s)

Bin Li, Hui-Min Wen, Wei Zhou, Banglin Chen

Metal-organic frameworks (MOFs) have been emerging as promising multifunctional materials, and shown particularly useful applications for gas storage and

Nucleation of Graphene and Its Conversion to Single Walled Carbon Nanotube

October 20, 2014

Author(s)

Matthieu C. Picher, Pin A. Lin, Gomez-Ballesteros L. Jose, Perla Balbuena, Renu Sharma

Nucleation is a critical stage for controlling the molecular building blocks into desired functional crystalline structures. For example, chirality of a single

Structure of Flocs of Latex Particles Formed by Addition of Protein from Moringa Seeds

October 20, 2014

Author(s)

Maja S. Hellsing, Habauka M. Kwaambwa, Fiona M. Nermark, Bonang B. M. Nkoane, Andrew J. Jackson, Matthew John Wasbrough, Ida Berts, Lionel Porcar, Adrian R. Rennie

Proteins extracted from the seeds of Moringa trees are effective flocculents for particles dispersed in water and they are attractive as a natural and

Structural Model of an mRNA in Complex with the Bacterial Chaperone Hfq

October 20, 2014

Author(s)

Yi Peng, Joseph E. Curtis, Xianyang Fang, Sarah A. Woodson

Small non-coding (s)RNAs and their chaperone protein Hfq regulate bacterial gene expression in response to stress and other environmental signals. Hfq binds

Streamlining the Additive Manufacturing Digital Spectrum: A Systems Approach

October 18, 2014

Author(s)

Duck B. Kim, Paul Witherell, Robert R. Lipman, Shaw C. Feng

Additive Manufacturing (AM) provides great potential for industrial manufacturers who require low volume and functional, highly complex end use products. Given

A geometric description of nonreciprocity in coupled two-mode systems

October 16, 2014

Author(s)

Leonardo M. Ranzani, Jose A. Aumentado

We explore the concept of nonreciprocity in coupled two-mode systems using a geometric mapping to the Poincaré sphere. From this perspective, we recast the

Avoiding Catastrophes in Cyberspace through Smarter Testing: How to prevent Heartbleed-like disasters using readily available testing technologies

October 16, 2014

Author(s)

Apostol T. Vassilev, Christopher Celi

The recently discovered Heartbleed bug in OpenSSLs implementation of Internet security protocols and the aftermath from dealing with its consequences

Mechanical property changes in porous low-k dielectric thin films during processing

October 15, 2014

Author(s)

Gheorghe Stan, Richard S. Gates, Premsagar P. Kavuri, Jessica Torres, David Michalak, Canay Ege, Jeff Bielefeld, Sean W. King

The design of future generations of Cu-low-k dielectric interconnects with reduced electronic crosstalk often requires engineering materials with an optimal

Modeling RP-1 fuel advanced distillation data using comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry and partial least squares analysis

October 15, 2014

Author(s)

Thomas J. Bruno, Benjamin Kehimkar, Brendon Parsons, Jamin C. Hoggard, M. C. Billingsley, R. E. Synovec

Recent efforts in predicting rocket propulsion (RP-1) fuel performance through modeling put greater emphasis on obtaining detailed and accurate fuel properties

Faceting Control in Core/Shell GaN micropillars using Selective Epitaxy

October 15, 2014

Author(s)

Sergiy Krylyuk, Heayoung Yoon, Baomei Wen, Abhishek Motayed, Albert Davydov, Matt N. King

We report on fabricating large-area, vertically aligned GaN epitaxial core-shell micropillar arrays. The two-step process consisted of inductively coupled

gamma-prime Phase Stability and Phase Equilibrium in Ternary Co-W-Al at 900 °C

October 15, 2014

Author(s)

Eric Lass, Maureen E. Williams, Carelyn E. Campbell, Kil-Won Moon, Ursula R. Kattner

Phase equilibria at 900 °C in the Co-rich Co-W-Al ternary system is investigated through isothermal annealing of six alloy compositions for times up to 8000 h

Parameter Estimation and Uncertainty Evaluation in a Low Rician K-Factor Reverberation-Chamber Environment

October 15, 2014

Author(s)

Chih-Ming Wang, Catherine A. Remley, Ansgar T. Kirk, Ryan J. Pirkl, Christopher L. Holloway, Dylan F. Williams, Paul D. Hale

In this paper we study statistical methods for estimating the Rician K-factor when this parameter is small. A fiducial approach for making statistical inference

High-Power and High-Linearity Photodetector Modules for Microwave Photonic Applications

October 15, 2014

Author(s)

Frederick N. Baynes, Efthymios Rouvalis, Xiaojun Xie, Qiugui Zhou, Franklyn J. Quinlan, Tara M. Fortier, Scott A. Diddams, Andreas G. Steffan, Andreas Beling, Joe C. Campbell

We demonstrate hermetically packaged InGaAs/InP photodetector modules for high performance microwave photonic applications. The devices employ an advanced

Nanoscale Imaging of Photocurrent and Efficiency in CdTe Solar Cells

October 15, 2014

Author(s)

Leite Marina, maxim abashin, Henri Lezec, anthony gianfrancesco, Alec Talin, Nikolai Zhitenev

The local collection characteristics of grain interiors and grain boundaries in thin film CdTe polycrystalline solar cells are investigated using scanning

AF4/MALS/QELS/DRI characterization of regular star polymers and their "span analogs"

October 15, 2014

Author(s)

Leena M. Pitkanen, Andre Striegel

Asymmetric flow field-flow fractionation (AF4) coupled with multi-angle static and quasi-elastic light scattering and refractive index detectors was employed

Expansions for a fundamental solution of Laplace's equation on R³ in 5-cyclidic harmonics

October 14, 2014

Author(s)

Howard S. Cohl, Hans Volkmer

We derive eigenfunction expansions for a fundamental solution of Laplace's equation in three-dimensional Euclidean space in 5-cyclidic coordinates. There are

Direct and indirect measurements and modeling of methane emissions in Indianapolis, IN

October 13, 2014

Author(s)

Kuldeep R. Prasad

Abstract Based on recent EPA Greenhouse Gas Inventories, releases of methane (CH4) from the natural gas supply chain in the United States account for

Nonparametric Estimates of Drift and Diffusion Profiles via Fokker-Planck Algebra

October 13, 2014

Author(s)

Steven P. Lund, Michael W. Halter, Joseph B. Hubbard

Diffusion processes superimposed upon deterministic motion play a key role in understanding and controlling the transport of matter, energy, momentum, and even

Exceptional Superionic Conductivity in Disordered Sodium Decahydro-closo-decaborate

October 13, 2014

Author(s)

Terrence J. Udovic, Motoaki Matsuo, Wan Si NMN Tang, Hui Wu, Vitalie Stavila, Alexei V. Soloninin, Roman V. Skoryunov, Olga A. Babanova, Alexander Skripov, John J. Rush, Atsushi Unemoto, Hitoshi Takamura, Shin-Ichi Orimo

Na 2B 10h 10 undergoes a transition from an ordered monoclinic phase to a disordered, face-centered-cubic phase near 370 K with the emergence of a vacancy-rich

Self-Assembly of the Triblock Copolymer 17R4 Poly(propylene oxide)₁₄ - Poly(ethylene oxide)₂₄ - Poly(propylene oxide)₁₄ in D₂O

October 13, 2014

Author(s)

Bryna C. Kumi, Boualem Hammouda, Sandra C. Greer

The triblock copolymer Reverse Pluronic 17R4 consists of tow end blocks of poly(propylene oxide)(PPO) with a middle block of poly(ethylene oxide) (PEO): PPO 14

Persistent Fe Moments in the Normal-State Collapsed-Tetragonal Phase of the Pressure-induced Superconductor Ca_0.67Sr_0.33Fe₂As₂

October 13, 2014

Author(s)

J.R. Jeffries, Nicholas Butch, M.J. Lipp, J.A. Bradley, K. Kirshenbaum, Shanta Saha, J. Paglione, C. Kenny-Benson, Y. Xiao, P. Chow, W. J. Evans

Using non-resonant Fe Κ}β x-ray emission spectroscopy, we reveal that Sr-doping of CaFe 2As 2 decouples the Fe moment from the volume collapse transition

Insights into carbon nanotube nucleation: Cap formation governed by catalyst interfacial step flow

October 13, 2014

Author(s)

Rahul Rao, Renu Sharma, Frank Abild-Pedersen, Jens Norskov, Avetik R. Harutyunyan

In order to accommodate an increasing demand for carbon nanotubes (CNTs) with desirable characteristics one has to understand the origin of helicity of their

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