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Journals

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

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

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

Synthesis, Thermal Behaviors and Dehydrogenation Kinetics Studies on Lithiated Ethylenediamine

October 13, 2014

Author(s)

Juner Chen, Guotao Wu, Zhitao Xiong, Hui Wu, Yong Shen Chua, Wei Zhou, Bin Liu, Xiaohua Ju, Ping Chen

The lithiation of ethylenediamine by LiH is a step-wise process forming the partially lithiated intermidiates LiN(H)CH 2CH 2NH 2 and [LiN(H)CH 2CH 2NH 2][LiN(H

Surface Analysis and Materials Characterization for the Study of the Ceramic Tiles HRSI from the Space Shuttle Thermal Protective Systems

October 12, 2014

Author(s)

Hanna Szczepanowska, Thomas Brian Renegar

The orbital thermal management systems fall into two categories, ablative or reusable. The first type was successfully applied on the Apollo missions, the

A Microliter Capillary Rheometer for Characterization of Protein Solutions

October 10, 2014

Author(s)

Steven D Hudson, Prasad S. Sarangapani, Kalman D. Migler, Jai A. Pathak

Rheometry is an important characterization tool for therapeutic protein solutions because it determines syringeability and relates indirectly to solution

Ultrafast THz photoconductivity of photovoltaic polymer-fullerene blends: a comparative study correlated with photovoltaic device performance

October 10, 2014

Author(s)

Edwin J. Heilweil, Jin Zuanming, Dominik Gehrig, Clare Dyer-Smith, Frederic Laquai, Mischa Bonn, Dmitry Turchinovich

Ultrafast photo-induced carrier dynamics in prototypical low band-gap polymer:fullerene photovoltaic blend films PTB7:PC70BM and P3HT:PC70BM is investigated

Dynamic customization, validation and integration of product data models using semantic web tools

October 10, 2014

Author(s)

Allison Barnard Feeney, Sylvere Krima, sebti foufou

Product Lifecycle Management (PLM) requires robust solutions for representing and integrating product data models. Product data models enable information

Neutron Scattering Studies of the Ferroelectric Distortion and Spin Dynamics in the Type-1 Multiferroic Perovskite Sr_0.56Ba_0.44MnO₃

October 9, 2014

Author(s)

Daniel K. Pratt, Jeffrey W. Lynn, James Mais, Omar Chmaissem, Dennis E. Brown, Stanislaw Kolesnik, Bogdan Dabrowski

The magnetic order, spin dynamics, and crystal structure of the multiferroic Sr 0.56Ba 0.44MnO 3 have been investigated using neutron and x-ray scattering

Kitaev chains with long-range interactions

October 9, 2014

Author(s)

Davide Vodola, Luca Lepori, Elisa Ercolessi, Alexey Gorshkov, Guido Pupillo

We propose and analyze a generalization of the Kitaev chain for fermions with long-range p-wave pairing, which decays with distance as a power-law with exponent

On Statistical Modeling and Forecasting of Energy Usage in Smart Grid

October 8, 2014

Author(s)

Wei Yu, Dou An, David W. Griffith, Qingyu Yang, Guobin Xu

Developing effective energy resource management in the smart grid is challenging because the entities in both the demand and supply sides experience various

Optimizing Passive Quantum Clocks

October 8, 2014

Author(s)

Michael J. Mullan, Emanuel Knill

We describe protocols for passive atomic clocks based onquantum interrogation of the atoms. Unlike previous techniques, our protocols are adaptive and take

Influence of Chemical Straightening on the Stability of Drugs of Abuse in Hair

October 8, 2014

Author(s)

Jeanita Pritchett, Karen W. Phinney

Chemical straightening, also known as a relaxer, is ubiquitously used among African American women to obtain straighter hair compared with their natural tresses

Collapse and revivals for systems of short-range phase coherence

October 7, 2014

Author(s)

Khan W. Mahmud, Lei Jiang, Philip R. Johnson, Eite Tiesinga

We predict the existence of novel collapse and revival oscillations that are a distinctive signature of the short-range off-diagonal coherence associated with

Modeling of an air-backed diaphragm in dynamic pressure sensors: effects of the air cavity

October 7, 2014

Author(s)

Haijun H. Liu, Douglas A. Olson, Miao Yu

As the key structure of most dynamic pressure sensors, a diaphragm backed by an air cavity plays a critical role in the determination of sensor performance. In

Phase-Sensitive Detection of Spin Pumping via the ac Inverse Spin Hall Effect

October 6, 2014

Author(s)

Thomas J. Silva, Justin M. Shaw, Hans T. Nembach, Mathias A. Weiler

Sources of pure spin currents are a fundamental building block of spintronic devices. In ferromagnet/normal metal heterostructures, spin currents are generated

Comb-calibrated laser ranging for three-dimensional surface profiling with micrometer-level precision at a distance

October 6, 2014

Author(s)

Esther Baumann, Fabrizio R. Giorgetta, Jean-Daniel Deschenes, William C. Swann, Ian R. Coddington, Nathan R. Newbury

Non-contact surface mapping at a distance is interesting in diverse applications including industrial metrology, manufacturing, forensics, and artifact

A Homogenization Technique for Obtaining Generalized Sheet Transition Conditions for an Arbitrarily Shaped Coated Wire Grating

October 6, 2014

Author(s)

Christopher L. Holloway, Edward Kuester

Using a multiple-scale homogenization method, we derive generalized sheet transition conditions (GSTCs) for an arbitrarily shaped coated wire grating. The

Economic Impact of Improved Service-Life Prediction for Seams in Low-Slope EPDM Roofing

October 5, 2014

Author(s)

Douglas S. Thomas

In the early part of the 1970's built-up-roofing dominated the U.S. membrane roofing industry. It was estimated that 10 to 15 percent of these roofs failed, but

The Economics of Residential Fire Sprinklers and the Potential Impact of Recent Code Changes

October 5, 2014

Author(s)

David T. Butry

Residential fire sprinklers reduce the likelihood of room flashover, improving conditions for occupant egress, and thereby reduce the number of fatalities

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