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Journals

Photon-noise limited sensitivity in titanium nitride kinetic inductance detectors

February 20, 2015

Author(s)

Johannes Hubmayr, James A. Beall, Daniel T. Becker, Hsiao-Mei Cho, Gene C. Hilton, Dale Li, David P. Pappas, Jeffrey L. Van Lanen, Mark Devlin, Kent D. Irwin, Chris Groppi, Phillip Mauskopf

We demonstrate photon-noise limited performance at sub-millimeter wavelengths in microwave kinetic inductance detectors (MKIDs) made of a new superconducting...

Evaluation of Low-Contrast Detectability of Iterative Reconstruction across Multiple Institutions, CT Scanner Manufacturers, and Radiation Exposure Levels

February 19, 2015

Author(s)

Adele P. Peskin, Ganesh Saiprasad, James J. Filliben, Alden A. Dima

Purpose: To evaluate the impact of Iterative Reconstruction (IR) compared with Filtered Back Projection (FBP) using low-contrast objects in phantom images...

Ultrathin platinum films for methanol and formic acid oxidation: activity as a function of film thickness and coverage

February 18, 2015

Author(s)

Thomas P. Moffat

Self-terminating electrodeposition was used to grow ultrathin Pt overlayers on 111 textured Au thin films. The Pt thickness was digitally controlled by pulsed...

Position-dependent spin-orbit coupling for ultracold atoms

February 18, 2015

Author(s)

Ian B. Spielman, Shih Wei Su, Shih-Chuan Gou, Ihe-Kau Liu, Luis Santos, Arturas Acus, Algirdas Mekys, Gediminas Juzeliunas

We theoretically explore atomic Bose-Einstein condensates (BECs) subject to position-dependent spin-orbit coupling (SOC). This SOC can be produced by cyclically...

Bisphenol A leads to oxidative DNA damage and alters the damage response in mouse fibroblasts

February 18, 2015

Author(s)

Pawel Jaruga, Natalie R. Gassman, Erdem Coskun, Donna F. Stefanick, Julie K. Horton, M Miral Dizdar, Samuel H. Wilson

Metabolism of bisphenol A (BPA) generates reactive oxygen species causing DNA strand breaks and damaged DNA bases. Base excision repair (BER) is responsible for...

Current Trends in Magnetic Particle Enrichment for Mass Spectrometry-Based Analysis of Cardiovascular Protein Biomarkers

February 18, 2015

Author(s)

Nicole A. Schneck, Mark S. Lowenthal, Karen W. Phinney, Sang Bok Lee

Magnetic particles have traditionally been utilized to isolate and enrich various cardiovascular protein biomarkers for mass spectrometry-based proteomic...

Long-Term Stability of UHMWPE Fibers

February 18, 2015

Author(s)

Amanda L. Forster, Aaron M. Forster, Joannie W. Chin, Chiao-Chi Lin, Sylvain H. Petit, Kai-Li Kang, Nicholas G. Paulter Jr., Michael A. Riley, Kirk D. Rice

The superior performance of ultra-high molecular weight polyethylene fi bers is predicated on the development of a highly aligned molecular structure that...

Simulation Studies of Methods to Delay Corrosion and Increase Service Life for Cracked Concrete Exposed to Chlorides

February 18, 2015

Author(s)

Scott Z. Jones, Nicos Martys, Yang Lu, Dale P. Bentz

The ingress of chlorides in reinforced concrete leads to the onset of rebar corrosion and eventually compromises a structures integrity. To extend its service...

Thermodynamic properties of 1-naphthol: Mutual validation of experimental and computational results

February 17, 2015

Author(s)

Robert D. Chirico, William V. Steele, Andrei F. Kazakov

Thermodynamic properties for 1-naphthol (Chemical Abstracts registry number [90-15-3]) in the ideal-gas state are reported based on both experimental and...

Thermodynamic properties of xanthone: Heat capacities, phase-transition properties, and thermodynamic-consistency analyses using computational results

February 17, 2015

Author(s)

Robert D. Chirico, Andrei F. Kazakov

Heat capacities and phase-transition properties for xanthone (IUPAC name 9H-xanthen-9-one and Chemical Abstracts registry number [90-47-1]) are reported for the...

Smoke Characterization and Feasibility of the Moment Method for Spacecraft Fire Detection

February 17, 2015

Author(s)

Jiann C. Yang, Thomas G. Cleary, George W. Mulholland, Marit Meyer, Victoria Bryg, D L. Urban, Zeng-guang Yuan, Gary A. Ruff

The Smoke Aerosol Measurement Experiment (SAME) has been conducted twice by NASA and provided the first real-time aerosol data in a spacecraft micro-gravity...

Microstructural effects of chemical island templating in patterned matrix-pillar oxide nanocomposite

February 17, 2015

Author(s)

Ryan Comes, Kerry Siebein, Jiwei Lu, Stuart Wolf

The ability to pattern the location of pillars in epitaxial matrix-pillar nanocomposites is a key challenge to develop future technologies using these...

Improved Indifferentiability Security Bound for the JH Mode

February 15, 2015

Author(s)

Dustin Moody, Daniel C. Smith-Tone, Souradyuti Paul

Indifferentiability security of a hash mode of operation guarantees the mode's resistance against all generic attacks. It is also useful to establish the...

Computing the Time Evolution of the Apparent Viscoelastic/Viscoplastic Poisson's Ratio of Hydrating Cement Paste

February 15, 2015

Author(s)

Li xiodan, Zachary Grasley, Jeffrey W. Bullard, Edward Garboczi

A computational model has been developed that combines finite element methods with microstructure development simulations to quantitatively predict the...

Effective Anisotropy Gradient in Pressure Graded [Co/Pd] Multilayers

February 14, 2015

Author(s)

Brian J. Kirby, P. K. Greene, Brian B. Maranville, J. E. Davis, Kai Liu

A vertically graded anisotropy profile has been proposed as an optimized balance of low coercivity and thermal stability for multilayers used in magnetic media...

In situ observation of the spatial distribution of crystalline phases during pressure-induced transformations of indented silicon thin films

February 14, 2015

Author(s)

Yvonne B. Gerbig, Chris A. Michaels, Robert F. Cook

Indentation-induced phase transformation processes were studied by in situ Raman imaging of the deformed contact region of silicon, employing a Raman...

Fourier and Gegenbauer expansions for a fundamental solution of Laplace's equation in hyperspherical geometry

February 14, 2015

Author(s)

Howard S. Cohl, Rebekah M. Palmer

For a fundamental solution of Laplace's equation on the R-radius d-dimensional hypersphere, we compute the azimuthal Fourier coefficients in closed form in two...

Frequency Modulated Charge Pumping with Extremely High Gate Leakage

February 13, 2015

Author(s)

Jason T. Ryan, Jibin Zou, Jason P. Campbell, Richard Southwick, Kin P. Cheung, Anthony Oates, Rue Huang

Charge pumping (CP) has proven itself as one of the most utilitarian methods to quantify defects in metal-oxide-semiconductor devices. In the presence of low to...

Randomized methods for rank-deficient linear systems

February 13, 2015

Author(s)

Josef Sifuentes, Zydrunas Gimbutas, Leslie Greengard

We present a simple, accurate method for solving consistent, rank-deficient linear systems, with or without additional rank-completing constraints. Such...

An Improved Index of Image Quality for Task-Based Performance of CT Iterative Reconstruction across Three Commercial Implementations

February 13, 2015

Author(s)

Olav Christianson, Joseph Chen, Zhitong Yang, Ganesh Saiprasad, Alden A. Dima, James J. Filliben, Adele Peskin, Eliot L. Siegel, Ehsan Samei

Temperature-dependent structure of Tb-doped magnetite nanoparticles

February 13, 2015

Author(s)

Katherine P. Rice, Stephen E. Russek, Roy H. Geiss, Justin Shaw, Robert J. Usselman, Eric R. Evarts, Thomas J. Silva, Hans Nembach, Elke Arenholz, Yves U. Idzerda

High quality 5 nm cubic Tb-doped magnetite nanoparticles have been synthesized by a modified wet-chemical method to investigate tailoring of magnetic properties...

Recommended Practices for the use of Spinning Rotor Gauges in Inter-laboratory Comparisons

February 12, 2015

Author(s)

James A. Fedchak, Karl Jousten, Kenta Arai, Janez Setina

The spinning rotor gauge (SRG) is a common transfer standard in key comparisons (KCs) and other intercomparisons for pressures in the range of 1.0 × 10-4 Pa to...

Near-Field Asymmetries in Plasmonic Resonators

February 12, 2015

Author(s)

Vladimir Aksyuk, Basudev Lahiri, Glenn Holland, Andrea Centrone

Surface-enhanced infrared absorption (SEIRA) spectroscopy exploits the locally enhanced field surrounding plasmonic metamaterials to increase the sensitivity of...

Effects of wafer noise on the detection of 20 nm defects using optical volumetric inspection

February 11, 2015

Author(s)

Bryan Barnes, Francois R. Goasmat, Martin Sohn, Hui Zhou, Andras Vladar, Richard Silver

Patterning imperfections in semiconductor device fabrication may either be noncritical [e.g., line edge roughness (LER)] or critical, such as defects that...

Fast Strain Wave Induced Magnetization Changes in Long Cobalt Bars: Domain Motion versus Coherent Rotation

February 11, 2015

Author(s)

S. Davis, Julie Borchers, Brian B. Maranville, S. Adenwalla

A fast (88 MHz) traveling strain wave on a piezoelectric substrate is shown to rapidly change the magnetization direction in 40 micron wide Co bars with an...

Highly efficient generation of single-mode photon pairs from a crystalline whispering-gallery-mode resonator source

February 11, 2015

Author(s)

Michael Fortsch, Gerhard Schunk, Josef Furst, Dmitry Strekalov, Thomas Gerrits, Martin Stevens, Florian Sedlmeir, Harald G. Schwefel, Gerd Leuchs, Christoph Marquardt

We report on the highly-efficient generation of narrow-band pair-photons in one single spatiotemporal mode using parametric down-conversion in a crystalline...

Giant Negative Thermal Expansion in Bonded MnCoGe-Based Compounds with Ni₂In-Type Hexagonal Structure

February 11, 2015

Author(s)

Ying-Ying Zhao, Feng-Xia Hu, Li-Fu Bao, Jing Wang, Hui Wu, Qingzhen Huang, Rong-Rong Wu, Yao Liu, Fei-Ran Shen, Hao Kuang, Ming Zhang, Wen-Liang Zuo, Xin-Qi Zheng, Ji-Rong Sun, Bao-Gen Shen

MnCoGe-based compounds undergo a large negative thermal expansion (NTE) during the martensitic structural transition from Ni 2In-type hexagonal to TiNiSi-type...

Attosecond timing in optical-to-electrical conversion

February 10, 2015

Author(s)

Frederick N. Baynes, Franklyn J. Quinlan, Tara M. Fortier, Qiugui Zhou, Andreas Beling, Joe C. Campbell, Scott A. Diddams

The most frequency-stable sources of electromagnetic radiation are produced optically, and optical frequency combs provide the means for high fidelity frequency...

Graph-based analysis of nonreciprocity in coupled-mode systems

February 10, 2015

Author(s)

Leonardo M. Ranzani, Jose A. Aumentado

In this work we derive the general conditions for obtaining nonreciprocity in multi-mode parametrically- coupled systems. The results can be applied to a broad...

Reducing Block Copolymer Interfacial Widths through Polymer Additives

February 10, 2015

Author(s)

Daniel F. Sunday, Regis J. Kline

There is a need to design new materials to achieve smaller pitches and reduced interfacial widths for use in the nanopatterning of block copolymers (BCPs). One...

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