Journals

Magnetic Particle Imagining with a Cantilever Detector

July 23, 2012

Author(s)

Jacob W. Alldredge, John M. Moreland

We present a novel imaging method for the measuring the position and magnetic moment of single micrometer scale particles. Our technique is based on magnetic

Origin of Electrical Signals for Plasma Etching Endpoint Detection: Comparison of Endpoint Signals and Electron Density

July 23, 2012

Author(s)

Mark A. Sobolewski, David L. Lahr

Electrical signals are used for endpoint detection in plasma etching, but the origin of the electrical changes observed at endpoint is not well understood. As

An algorithm for finding clusters with a known distribution and its application to photon-number resolution using a superconducting transition-edge sensor

July 20, 2012

Author(s)

Zachary H. Levine, Thomas Gerrits, Alan L. Migdall, Daniel V. Samarov, Brice R. Calkins, Adriana E. Lita, Sae Woo Nam

Improving photon-number resolution of single-photon sensitive detectors is important for many applications, as is extending the range of such detectors. Here we

Enabling the Study of Structure Vulnerabilities to Ignition from Wind Driven Firebrand Showers: A Summary of Experimental Results

July 18, 2012

Author(s)

Samuel L. Manzello, Sayaka S. Suzuki, Yoshihiko Hayashi

Until recently, attempting to experimentally quantify the vulnerabilities of structures to ignition from firebrand showers has remained elusive. The coupling of

Absorption and Reflection of Infrared Radiation by Polymers in Fire-Like Environments

July 17, 2012

Author(s)

Gregory T. Linteris, Mauro Zammarano, Boris Wilthan, Leonard M. Hanssen

In large-scale fires, the input of energy to burning materials occurs predominantly by radiative transfer. The in-depth absorption of radiant energy by a

Chemical and Thermophysical Characterization of 1,3,5-triisopropylcyclohexane

July 17, 2012

Author(s)

Thomas J. Bruno, Tara J. Fortin, Tara M. Lovestead, Jason A. Widegren

The complex nature of finished fuels makes definitive studies on composition and combustion properties very difficult and uncertain. This has led to the

A Microelectromechanically Controlled Cavity Optomechanical Sensing System

July 17, 2012

Author(s)

Houxun H. Miao, Kartik A. Srinivasan, Vladimir A. Aksyuk

Microelectromechanical systems (MEMS) have been applied to many measurement problems in physics, chemistry, biology and medicine. In parallel, cavity

Microporous Metal-Organic Framework with Potential for Carbon Dioxide Capture at Ambient Conditions

July 17, 2012

Author(s)

Shengchang Xiang, Yabing He, Zhangjing Zhang, Hui Wu, Wei Zhou, Rajamani Krishna, Banglin Chen

Carbon dioxide capture and sequestration (CCS) is a very important industrial and environmental process to make use of the carbon dioxide as raw chemical for

Switching Distributions for Perpendicular Spin-Torque Devices Within the Macrospin Approximation

July 17, 2012

Author(s)

William H. Butler, William Rippard, Stephen E. Russek, Ranko R. Heindl

We model "soft" error rates for writing (WSER) and for reading (RSER) for spin-torque memory devices that have a free layer with easy axis perpendicular to the

What's Special About Cloud Security?

July 16, 2012

Author(s)

Peter M. Mell

While cloud security concerns have consistently ranked as one of the top challenges to cloud adoption, it is not clear what security issues are special with

Optimal Laser Scan Path for Localizing a Fluorescent Particle in Two or Three Dimensions

July 16, 2012

Author(s)

Gregg M. Gallatin, Andrew J. Berglund

Localizing a fluorescent particle by scanning a focused laser in its vicinity and analyzing the detected photon stream provides real-time information for a

Low-noise chip-based frequency conversion by four-wave-mixing Bragg scattering in SiNx waveguides

July 15, 2012

Author(s)

Imad I. Agha, Marcelo I. Davanco, Bryce Thurston, Kartik A. Srinivasan

The Decomposition of 2-Pentyl and 3-Pentyl Radicals

July 15, 2012

Author(s)

Jeffrey A. Manion, Iftikhar A. Awan

The isomerization and decomposition reactions of 2-pentyl and 3-pentyl radicals have been studied in a single-pulse shock tube over a temperature range of 973 K

Caveats Regarding the Solvent/Non-solvent and SELS Approaches in Size-Exclusion Chromatography and Related Methods

July 14, 2012

Author(s)

Andre M. Striegel, Kelsey McNeel, Dustin Richard

A rarely documented, yet industrially popular, approach to the size-exclusion chromatography (SEC) and related analysis of polymers that do not dissolve in

A Simple and Efficient Approach to Synthesize Amidoborane Ammoniates: Case Study for Mg(NH₂BH₃)₂(NH₃)₃ with Unusual Coordination Structure

July 14, 2012

Author(s)

Xiangdong Kang, Hui Wu, Junhong Luo, Wei Zhou, Ping Wang

Metal amidoborane ammoniates are a new type of promising hydrogen storage materials consisting of metal cation, [NH 2BH 3] anionic unit and NH 3 ligand. Herein

A gamma and X-ray dector for cryogenic, high magnetic field applications

July 13, 2012

Author(s)

Thomas R. Gentile, R L. Cooper, R. Alarcon, M J. Bales, E J. Beise, H Breuer, J. Byrne, T E. Chupp, Kevin J. Coakley, Maynard S. Dewey, Changbo Fu, Hans P. Mumm, Jeffrey S. Nico, B. O'Neill, K. Pulliam, Alan Keith Thompson, F E. Wietfeldt

As part of an experiment to measure the spectrum of photons emitted in beta-decay of the free neu- tron, we developed and operated a detector consisting of 12

Switching Mechanisms in Flexible Solution-Processed TiO2 Memristors

July 11, 2012

Author(s)

Joseph L. Tedesco, Laurie Stephey, Madelaine H. Hernandez, Curt A. Richter, Nadine Gergel-Hackett

Memristors are emerging as unique electrical devices with potential applications in memory, reconfigurable logic, and biologically-inspired computing. Due to

Structural and biochemical studies of a plant formamidopyrimidine-DNA glycosylase reveal why eukaryotic Fpg glycosylases do not excise 8-oxoguanine.

July 11, 2012

Author(s)

M Miral Dizdar, Pawel Jaruga, Susan Duclos, Pierre Aller, Susan Wallace, Susan Doublie

Formamidopyrimidine-DNA glycosylase (Fpg; MutM) is a DNA repair enzyme widely distributed in bacteria. Fpg recognizes and excises oxidatively modified purines

Determination of graphene work function and graphene-insulator-semiconductor band alignment by internal photoemission spectroscopy

July 11, 2012

Author(s)

Rusen Yan, Qin Zhang, Wei Li, Irene G. Calizo, Tian T. Shen, Curt A. Richter, Angela R. Hight Walker, Xuelei X. Liang, David J. Gundlach, Nhan Van Nguyen, Huili G. Xing, Alan Seabaugh

We determined the band alignment of a graphene-oxide-silicon structure using internal photoemission spectroscopy. From the flatband voltage and Dirac voltage we

Verification of the Back-EMF Method for Piston Velocity Measurements

July 10, 2012

Author(s)

Ray Radebaugh, Michael A. Lewis, Peter E. Bradley

Linear compressors are used to drive pulse tube or Stirling cryocoolers, and they can be used as expanders in place of inertance tubes when inertance tubes

High Resolution THz Optical Absorption Study of Antiferromagnetic Magnons in Hematite (alpha-Fe2O3)

July 9, 2012

Author(s)

Shin G. Chou, David F. Plusquellic, Paul E. Stutzman, Shuangzhen S. Wang, Edward J. Garboczi

We report the high resolution optical measurement for the temperature dependence of the antiferromagnetic resonance (AFMR) transition in alpha-Fe2O3 between (0

Continuous-variable quantum compressed sensing

July 9, 2012

Author(s)

Yi-Kai Liu, Matthias Ohliger, Vincent Nesme, David Gross, Jens Eisert

We introduce a novel method to faithfully reconstruct unknown quantum states that are approximately low-rank, using only a few measurement settings. The method

Biodiesel Fuels from Supercritical Fluid Processing: Quality Evaluation with the Advanced Distillation Curve Method and Cetane Numbers

July 9, 2012

Author(s)

Thomas J. Bruno, George G. Anitescu, Lawrence L. Tavlarides

To develop efficient reactor and plant designs to optimize the process of biofuel production, thermophysical and chemical properties of various reactive

Biodiesel Fuels from Supercritical Fluid Processing: Quality Evaluation with the Advanced Distillation Curve Method and Cetane Numbers

July 9, 2012

Author(s)

George G. Anitescu, Thomas J. Bruno

The volatility of biodiesel fuel samples produced by supercritical (SC) transesterification (TE) of triglyceride feedstocks of chicken fat and soybean oil was

Current-induced motion of a transverse magnetic domain wall in the presence of spin Hall effect

July 9, 2012

Author(s)

Soo-Man Seo, Kyoung-Whan Kim, Jisu Ryu, Hyun-Woo Lee, Kyung Jin Lee

We study theoretically current-induced dynamics of a transverse magnetic domain wall in bi-layer nanowires consisting of a ferromagnet on top of a nonmagnet

Identification of Isethionic Acid and Other Small Molecule Metabolites of Fragilariopsis cylindrus with Nuclear Magnetic Resonance

July 8, 2012

Author(s)

Dan Bearden, Arezue F. Boroujerdi, Peter A. Lee, Giacomo R. DiTullio, Michael G. Janech, Sarah B. Vied

Nuclear magnetic resonance (NMR)-spectroscopy has been used to obtain metabolic profiles of the polar diatom Fragilariopsis cylindrus, leading to the

Estimating Far-Field Errors Due to Mechanical Errors in Spherical Near-Field Scanning*

July 8, 2012

Author(s)

Michael H. Francis

When the mechanical requirements are established for a spherical near-field scanner, it is desirable to estimate what effects the expected mechanical errors

Estimating Far-Field Errors Due to Mechanical Errors in Spherical Near-Field Scanning

July 8, 2012

Author(s)

Michael H. Francis

When the mechanical requirements are established for a spherical near-field scanner, it is desirable to estimate what effects the expected mechanical errors

Composites Failure Criteria, Uncertainty Propagation, and Estimation of the A-Basis and B-Basis Design Allowables

July 7, 2012

Author(s)

Jeffrey T. Fong, Nathanael A. Heckert, James J. Filliben

In a 2002 paper on a summary of the so-called World-Wide Failure Exercise by Hinton, Kaddour, and Soden (Composites Science and Technology, 62: 1725-1797), in

The winter time South Pole tropospheric water vapor column: Comparisons of radiosonde and recent terahertz radiometry, use of the saturated column as a proxy measurement; and inference of decadal trends

July 7, 2012

Author(s)

Richard A. Chamberlin, Erich N. Grossman

We use a fifty year record of winter time radiosonde observations at the South Pole to estimate the precipitable water vapor column (PWV) over the entire period