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Journals

Standard Photoacoustic Spectrometer: Model and Validation using O2 A-Band Spectra

June 30, 2010

Author(s)

Keith A. Gillis, Daniel K. Havey, Joseph T. Hodges

We model and measure the absolute response of an intensity-modulated photoacoustic spectrometer comprising a 10 cm long resonator and having a Q-factor of...

Investigating the Bag-of-Words Method for 3D Shape Retrieval

June 30, 2010

Author(s)

Afzal A. Godil, Xiaolan Li

This paper investigates the capabilities of the Bag-of-Words (BW) method in the 3D shape retrieval field. The contributions of this paper are: 1) the 3D shape...

Modeling Reactive Wetting when Inertial Effects are Dominant

June 30, 2010

Author(s)

Daniel Wheeler, James A. Warren, William J. Boettinger

Recent experimental studies of molten metal droplets wetting and spreading on high temperature reactive substrates have established that the majority of triple...

Thermodynamic model of hydride formation and dissolution in spherical particles

June 30, 2010

Author(s)

Yuri Mishin, William J. Boettinger

A model of hydride formation and dissolution has been proposed for a single spherical nano-particle and for a colletion of such particles with a given size...

Chips and Tips: Modified luer adapters with small dead volume that fit small tubing

June 28, 2010

Author(s)

Gregory A. Cooksey, glynnis Mattheisen

Luer adapters are convenient tools to rapidly and reversibly connect tubing from fluid reservoirs to microfluidic devices. One problem associated with the use...

Double-Resonance Lineshapes in a Cell with Wall Coating and Buffer Gas

June 28, 2010

Author(s)

Svenja A. Knappe, Hugh Robinson

Microwave double resonances were measured is a wall-coated Rb vapor cell as a function of additional buffer gas pressure. These data were compared to similar...

Determination of Organic Acids in Vaccinium Berry Standard Reference Materials

June 27, 2010

Author(s)

Melissa M. Phillips, Lane C. Sander, Katherine E. Sharpless, Stephen A. Wise, Catherine A. Rimmer, Ryan Case, James H. Yen

Nine organic acids (citric acid, galacturonic acid, glycolic acid, isocitric acid, malic acid, oxalic acid, quinic acid, shikimic acid, and tartaric acid) and...

Using Ab Initio "Data" to Accurately Determine the Fourth Density Virial Coefficient of Helium

June 25, 2010

Author(s)

Michael R. Moldover, Mark O. McLinden

We combine accurate ab initio calculations of the second and third density virial coefficients, B(T) and C(T), of 4He with measurements of its pressure-density...

Two modes behavior of vortex oscillations in spin-transfer nanocontacts subject to in-plane magnetic fields

June 25, 2010

Author(s)

Michaela Kuepferling, Claudio Serpico, Matthew Pufall, William Rippard, Thomas Mitchell (Mitch) Wallis, Atif A. Imtiaz, Pavel Kabos

The field dependence of vortex oscillations in a spin-transfer metallic nanocontact, subject to in-plane, spatially uniform, external fields, is studied by...

Time-resolved Fourier Transform Infrared Spectroscopy of the Gas-phase During Atomic Layer Deposition

June 24, 2010

Author(s)

Brent A. Sperling, William A. Kimes, James E. Maslar, Pamela M. Chu

In this work, we develop a Fourier transform infrared spectroscopy-based method to measure the gas-phase dynamics occurring during atomic layer deposition of...

Forced Assembly and Mixing of Melts via Planar Polymer Micro-Mixing

June 24, 2010

Author(s)

Doyoung Moon, Kalman D. Migler

The ability to force immiscible polymers into specific, targeted structures would enable the generation of blends with tailored performance by exploiting the...

Simulating Concordant Computations

June 23, 2010

Author(s)

Bryan K. Eastin

A quantum state is called concordant if it has zero quantum discord with respect to any part. By extension, a concordant computation is one such that the state...

Measurement of residual stress field anisotropy at indentations in silicon

June 23, 2010

Author(s)

Yvonne B. Gerbig, Stephan J. Stranick, Robert F. Cook

The residual stress field around spherical indentations on single crystal silicon (Si) of different crystallographic orientation is mapped by confocal Raman...

Adiabatic Preparation of Many-Body States in Optical Lattices

June 22, 2010

Author(s)

James V. Porto, Anders Sorensen, Ehud Altman, Michael Gullans, Mikhail Lukin, Eugene Demler

We analyze a technique for the preparation of low entropy many-body states of atoms in optical lattices based on adiabatic passage. In particular, we show that...

Mechanisms and Measurement of Nanomaterial-Induced Oxidative Damage to DNA

June 22, 2010

Author(s)

Bryant C. Nelson, Elijah J. Petersen

Many of the current investigations on the environmental health and human safety risks of engineered nanomaterials focus on their short-term acute effects...

AN ADHESION TEST METHOD FOR SPRAY-APPLIED FIRE-RESISTIVE MATERIALS

June 21, 2010

Author(s)

Kar T. Tan, Christopher C. White, Donald L. Hunston

Adhesion of spray-applied fire-resistive materials (SFRMs) to steel structures is critical in enabling the capacity of a building to remain functional for a...

Bit Error Rate Measurements in Reverberation Chambers using a VSA

June 21, 2010

Author(s)

Catherine A. Remley, Sander Floris, Christopher L. Holloway

We discuss practical measurement implementation issues regarding the use of a vector signal analyzer for making bit-error-rate measurements in reverberation...

Reverberation-Chamber Test Environment for Outdoor Urban Wireless Propagation Studies

June 21, 2010

Author(s)

Helge Fielitz, Kate Remley, Christopher L. Holloway, Qian Zhang, Qiong Wu, David W. Matolak

We introduce a test environment to replicate the well-known clustering of reflections in power delay profiles from urban wireless propagation environments that...

Quartz Crystal Microbalances for Microscale Thermogravimetric Analysis

June 20, 2010

Author(s)

Elisabeth Mansfield, Aparna Kar, Stephanie A. Hooker

A new method for analyzing the chemical purity and consistency of microscale samples is described using a quartz crystal microbalance (QCM) sensor platform. The...

Identification and quantification of (5'R)- and (5'S)-8,5'-cyclo-2'-deoxyadenosines in human urine as putative biomarkers of oxidatively induced damage to DNA

June 18, 2010

Author(s)

Pawel Jaruga, M Miral Dizdar

Oxidatively induced DNA damage occurs in living organisms by endogenous and exogenous sources, and is implicated in a variety of disease processes including...

Long-Term Monitoring of the Ultraviolet Irradiance Scale at the Facility for Irradiance Calibration Using Synchrotrons

June 18, 2010

Author(s)

Zhigang Li, Ping-Shine Shaw, Uwe Arp, Charles E. Gibson, Howard W. Yoon, Keith R. Lykke

In 2004, the National Institute of Standards and Technology (NIST) established the ultraviolet (UV) spectral irradiance scale from 200 nm to 400 nm using the...

On interchangeability of two laboratories

June 18, 2010

Author(s)

Chih-Ming Wang, Hariharan K. Iyer

This paper proposes a measure for assessing the degree of equivalence between the two laboratories in a key comparison. The measure is called asymmetric degree...

Structural changes during the formation of gold single atom chains: stability criteria and electronic structure

June 17, 2010

Author(s)

Francesca M. Tavazza, Lyle E. Levine, Anne M. Chaka

Under tensile deformation, Au nanowires (NWs) elongate to form single atom chains via a series of intermediate structural transformations. These intermediate...

Software Package to Facilitate the Preparation of Intermediate-Range Fossil Fuel Standards from Certified Reference Materials

June 17, 2010

Author(s)

John L. Molloy, Bruce S. MacDonald, William R. Kelly

A software package has been developed in Visual Basic for Applications to assist analysts in mixing fossil fuel reference materials to produce standards of...

Safely mounting glass viewports to elastomer sealed vacuum flanges

June 17, 2010

Author(s)

Patrick J. Abbott, Brian R. Scace

Elastomer sealed vacuum flanges rely on specially sized elastomer O-rings and corresponding grooves to make an air-tight seal. Depending on the materials being...

High frequency characterization of a Schottky contact to a GaN nanowire bundle

June 16, 2010

Author(s)

Chin J. Chiang, Thomas M. Wallis, Dazhen Gu, Atif A. Imtiaz, Pavel Kabos, Paul T. Blanchard, Kristine A. Bertness, Norman A. Sanford, Kichul Kim, Dejan Filipovic

A GaN nanowire (NW) Schottky contact was characterized up to 10 GHz. Using a calibration procedure and circuit model a capacitance-voltage (CV) curve was...

Global analysis of Förster resonance energy transfer in live cells measured by fluorescence lifetime imaging microscopy exploiting the rise time of acceptor fluorescence

June 16, 2010

Author(s)

Katharine M. Mullen, Sergey Laptenok, Jan Willem , Antonie Visser, Ivo van Stokkum

A methodology is described for the detection of F rster Resonance Energy Transfer (FRET) in live cells by monitoring the rise time of the acceptor fluorescence...

Tooth chipping can reveal bite forces and diets of fossil hominins

June 16, 2010

Author(s)

Paul Constantino, James J. Lee, H Chai, Bernhard Zipfel, Charles Ziscovici, Brian R. Lawn, Peter Lucas

Fossil hominin tooth enamel often exhibits antemortem edge chipping (Robinson 1954; Tobias 1967; Wallace 1973). Here we apply a simple fracture equation to...

Multi-Scale Pore Morphology in Vapor-Deposited Yttria-Stabilized Zirconia Coatings

June 16, 2010

Author(s)

Derek D. Hass, H. Zhao, Tabbetha A. Dobbins, Andrew J. Allen, Andrew Slifka, H. N. Wadley

A high pressure, electron-beam directed-vapor deposition process has been used to deposit partially stabilized zirconia containing 7 % yttria by mass at...

Cd-doping effects in Ce₂MIn₈ (M=Rh and Ir) Heavy Fermion Compounds

June 15, 2010

Author(s)

C. Adriano, C. Giles, E. M. Bittar, L. N. Coelho, F. de Bergevin, C. Mazzoli, L. Paolasini, William Ratcliff, Richard Bindel, Jeffrey Lynn, Z. Fisk, P. G. Pagliuso

Low temperature magnetic properties of Cd-doped Ce 2MIn 8 (M = Rh and Ir) single crystals are investigated. Experiments of temperature dependent magnetic...

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