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Journals

Evidence of a Transition to Reorientational Disorder in the Cubic Alkali-metal Dodecahydro-closo-dodecaborates

November 1, 2011

Author(s)

Kristina Verdal, Hui Wu, Terrence J. Udovic, Vitalie Stavila, Wei Zhou, John J. Rush

A neutron powder diffraction (NPD) and differential scanning calorimetry(DSC) study indicates that Cs 2B 12H 12 undergoes a second-order phase transition near...

Input-Output Approach to Predicting the Energy Efficiency of Residential Water Heaters Testing of Gas Tankless and Electric Storage Water Heaters

November 1, 2011

Author(s)

William M. Healy, Tania Ullah, John F. Roller

A study was conducted to evaluate the potential for using a linear relationship between the power input to a residential water heater and the output of thermal...

The National Strategy for Trusted Identities in Cyberspace (Enhancing Online Choice, Efficiency, Security, and Privacy through Standards)

November 1, 2011

Author(s)

Jeremy A. Grant

Dear Password, Its time for you to retire. Youve served us well, but the reality is that youre woefully outdated and fundamentally insecure. Moreover, our...

Just Try

November 1, 2011

Author(s)

Isabel M. Beichl

"Just Try"

November 1, 2011

Author(s)

Isabel M. Beichl

Pinhole X -ray camera photos of an ECR ion source plasma

November 1, 2011

Author(s)

Lawrence T. Hudson, Sandor Biri, E Takacs, R. Racz, J. Palinkas

A 70 micrometer pinhole and an X-ray CCD camera in single photon counting mode were used to obtain spatially and spectral resolved images of an electron...

Verification of Noise-Parameter Measurements and Uncertainties

November 1, 2011

Author(s)

James P. Randa, Dazhen Gu, Dave K. Walker

We propose and implement verification methods for measurements of noise parameters of amplifiers and transistors. Because the verification rests on the...

Measuring Standby Power Use in the DOE Clothes Washers, Clothes Dryers and Dishwashers Test Procedures

November 1, 2011

Author(s)

Natascha S. Milesi-Ferretti, Michael A. Galler, Farhad Omar

This paper discusses the issue of standby power in the Department of Energys (DOE) residential appliance test procedures. Section 1 introduces DOEs...

Common-Arm Counter-Propagating Interferometer for Fiber Vibration Measurements

November 1, 2011

Author(s)

Craig W. Nelson, Archita Hati, David A. Howe

We propose and demonstrate a novel technique to measure the vibration sensitivity of two-port fiber-based optical components. It uses a common-arm counter...

Modeling Produces Insight into Fire Behavior

November 1, 2011

Author(s)

Adam M. Barowy, Daniel M. Madrzykowski

The National Institute of Standards and Technology (NIST) is the leader in the development of computer-based fire models that simulate the movement of fire...

Tips and tools for digitizing a museum collection

November 1, 2011

Author(s)

Regina L. Avila, Susan A. Sanders, Keith R. Martin

This article is a "how to guide" for directing and managing a museum photography project. It is based on what the NIST Research Library learned as we went...

Discovery of giant magnetostriction in annealed Co1-xFex thin-films

November 1, 2011

Author(s)

Dwight Hunter, William Alexander Osborn, Ke Wang, Nataliya Kazantseva, Jason Hattrick-Simpers, Richard Suchoski, Ryota Takahashi, Marcus L. Young, Apurva Mehta, Leonid A. Bendersky, Sam E. Lofland, Manfred Wuttig, Ichiro Takeuchi

Chemical and structural heterogeneity and resulting interaction of coexisting phases can lead to extraordinary behaviors in oxides as observed in piezoelectric...

Mobile-App Addiction: Threat to Security?

November 1, 2011

Author(s)

George Hurlburt, Jeff Voas, Keith Miller

Giving individuals this kind of information processing power, along with unprecedented connectivity, might be the single most impressive technical achievement...

Local Weak Ferromagnetism in Single-Crystalline Ferroelectric BiFeO₃

November 1, 2011

Author(s)

M. Ramazanoglu, M. Laver, William D. Ratcliff, Shannon M. Watson, Wangchun Chen, Andrew Jackson, Karunakar NMN Kothapalli, Seongsu Lee, S.- W. Cheong, V. Kiryukhin

Polarized small-angle neutron scattering studies of single-crystalline multiferroic BefeO 3 reveal a long-wavelength spin density wave generated by 1° spin...

Linkage Disequilibrium Analysis of D12S391 and vWA in U.S. Population and Paternity Samples

November 1, 2011

Author(s)

Kristen E. Lewis, Carolyn R. Steffen, Peter Vallone, John M. Butler

Recently, the European Network of Forensic Science Institutes voted to adopt five additional STR loci (D12S391, D1S1656, D2S441, D10S1248, and D22S1045) to...

Effect of Neutron Irradiation on Dosimetric Properties of the TLD-600H (Lif6:Mg,Cu,P)

November 1, 2011

Author(s)

Alexander A. Romanyukha, Ronaldo Minniti, M. Moscovitch, Alan Keith Thompson, F. Trompier, Ronald Colle, A Sucheta, S. P. Voss, L. A. Benevides

Ideally, dosimeters should measure the dose without their dosimetric properties being affected by the radiation type being measured. Industry-wide occupational...

On the Development and Characterization of a Reduced Scale Continuous Feed Firebrand Generator

November 1, 2011

Author(s)

Sayaka S. Suzuki, Samuel Manzello

A new experimental apparatus, known as the NIST Reduced Scale Continuous Feed Firebrand Generator (the NIST continuous feed Baby Dragon) is presented for the...

Determination of perfluorinated compounds in human plasma and serum Standard Reference Materials using independent analytical methods

October 31, 2011

Author(s)

Jessica L. Reiner, Karen W. Phinney, Jennifer M. Lynch

Perfluorinated compounds (PFCs) were measured in three National Institute of Standards and Technology Standard Reference Materials (SRMs 1950 Metabolites in...

500 GHz - 750 GHz Rectangular-Waveguide Vector-Network-Analyzer Calibrations

October 31, 2011

Author(s)

Dylan F. Williams

We develop an uncertainty analysis that captures the dominant sources of measurement error in state-of-the-art rectangular-waveguide vector-network-analyzer...

A 750 mW, continuous-wave, solid-state laser source at 313 nm for cooling and manipulating trapped 9Be+ ions

October 28, 2011

Author(s)

Andrew C. Wilson, Christian Ospelkaus, Aaron Vandevender, J. A. Mlynek, Kenton R. Brown, Dietrich G. Leibfried, David J. Wineland

We present a solid-state laser system that generates 750 mW of continuous-wave, single frequency, output at 313 nm. Sum-frequency generation with fiber lasers...

Deformation and fracture of single-crystal silicon theta-like specimens

October 28, 2011

Author(s)

Michael S. Gaither, Frank W. DelRio, Richard S. Gates, Robert F. Cook

Miniaturized test specimens of single-crystal silicon, fabricated by lithography and deep reactive ion etching (DRIE), were used to measure deformation and...

The neutron cross section standards, evaluations and applications

October 28, 2011

Author(s)

Allan D. Carlson

The measurement of a neutron cross section can be simplified if it is measured relative to a neutron cross section standard. Then it is not necessary to measure...

A Highly Practical Route for Large-Area, Single Layer Graphene from Liquid Carbon Sources such as Benzene and Methanol

October 28, 2011

Author(s)

Gadipelli Srinivas, Irene G. Calizo, Jamie Ford, Guangjun Cheng, Angela R. Hight Walker, Taner N. Yildirim

Through a detailed systematic study, we determined the parameters critical for high-quality, single-layer graphene formation and developed a straightforward...

In Search of Enhanced Electrolyte Materials: A Case Study of Doubly Doped Ceria

October 28, 2011

Author(s)

Pratik Dholabhai, James B. Adams, Peter A. Crozier, Renu Sharma

Various compositions of gadolinium-praseodymium doubly doped ceria (GPDC) have been studied to appreciate the effect of two co-dopants in enhancing the ionic...

The pillaring effect of the 1,2-dimethyl-3(benzyl ethyl iso-butyl POSS) cation in polymer/montmorillonite nanocomposites

October 27, 2011

Author(s)

Douglas M. Fox, Richard H. Harris Jr., Jeffrey W. Gilman

The use of natural and non-toxic compounds to improve the properties of polymers has received significant attention over the past decade. In this study, a...

Synthesis and characterization of antimicrobial dimethacrylates containing quaternary ammonium functionalities for dental and biomedical applications

October 27, 2011

Author(s)

Joseph M. Antonucci, Diana N. Zeiger, Sheng Lin-Gibson, Bruce O. Fowler, Nancy J. Lin

The widespread incidence of recurrent caries has resulted in the need for improved dental restorative materials, including effective antibacterial, polymeric...

Detecting Paired and Counterflow superfluidity via dipole oscillations

October 27, 2011

Author(s)

Anzi A. Hu, Ludwig G. Mathey, Eite Tiesinga, Ippei Danshita, Carl J. Williams, Charles W. Clark

We suggest an experimentally feasible procedure to observe paired and counterflow superfluidity in ultra-cold atom systems. We study the time evolution of one...

Method for Determining the Absolute Number Concentration of Nanoparticles from Electrospray

October 27, 2011

Author(s)

Mingdong M. Li, Suvajyoti S. Guha, Rebecca A. Zangmeister, Michael J. Tarlov, Michael R. Zachariah

We have developed a simple, fast, and accurate method to measure the absolute number concentration of nanoparticles in solution. The method combines...

Model Selection for Good Estimation and Prediction Over a User-Speci ed Covariate Distribution for Linear Models Under the Frequentist Paradigm

October 26, 2011

Author(s)

Adam L. Pintar

Model selection is an important part of estimation and prediction for linear models with multiple explanatory variables (covariates). A variety of approaches...

Nanoscale Focused Ion Beam from Laser-cooled Lithium Atoms

October 26, 2011

Author(s)

Brenton J. Knuffman, Adam V. Steele, Jon Orloff, Jabez J. McClelland

To advance the capabilities of focused ion beam (FIB) technology, we have created a low-energy FIB from photoionized lithium atoms collected in a magneto...

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