Journals

Broadband Emissivity Calibration of Highly Reflective Samples at Cryogenic Temperatures

October 15, 2012

Author(s)

Solomon I. Woods, Timothy M. Jung, Greg Ly, Simon G. Kaplan, Jie Yu

We have developed a technique for calibrating the broadband optical emissivity of high reflectivity samples at cryogenic temperatures. This measurement method...

Certification of NIST SRM 2569 Lead Paint Films for Children's Products

October 15, 2012

Author(s)

John L. Molloy, John R. Sieber, Karen E. Murphy, Stephen E. Long, Stefan D. Leigh

SRM 2569 Lead Paint Films for Childrens Products is a new Standard Reference Material (SRM) developed for use primarily with XRF instrumentation. It consists...

Evaluation of Cation-Exchanged Zeolite Adsorbents for Post-Combustion Carbon Dioxide Capture

October 15, 2012

Author(s)

Tae-Hyun Bae, Matthew Ross Hudson, Jarad A. Mason, Wendy Queen, J.J. Dutton, Kenji Sumida, Ken J. Micklash, Steven S. Kaye, Craig Brown, Jeffrey R. Long

A series of zeolite adsorbents was evaluated for potential application in post-combustion (CO 2) capture. Among zeolites tested, Ca-A showed the highest CO 2...

Broadband mid-infrared frequency upconversion with a aperiodically-poled LiNbO3 waveguide

October 15, 2012

Author(s)

Tyler W. Neely, Lora L. Nugent-Glandorf, Florian B. Adler, Scott Diddams

We convert a mid-infrared frequency comb to near-infrared wavelengths through sum-frequency generation in an aperiodically poled ZnO:LiNBO3 waveguide...

Adhesion-dependent negative friction coefficient on chemically modified graphite at the nanoscale

October 14, 2012

Author(s)

Zhao Z. Deng, Alexander Smolyanitsky, Qunyang Li, Xi-Qiao Feng, Rachel J. Cannara

A negative friction coefficient is observed for graphite using atomic force microscopy. The magnitude of the friction coefficient increases with adhesion, which...

Detecting Differential Expression in RNA-Sequence Data Using Quasi-Likelihood with Shrunken Dispersion Estimates

October 12, 2012

Author(s)

Steven P. Lund

Next generation sequencing technology provides a powerful tool for measuring gene expression (mRNA) levels in the form of RNA-sequence data. Method development...

Single photon frequency up-conversion and its applications

October 12, 2012

Author(s)

Lijun Ma, Oliver T. Slattery, Xiao Tang

The National Institute of Standards and Technology (NIST) has adapted a frequency up-conversion technique to develop highly efficient and sensitive single...

The Infrared Spectrum of HOOH+ Trapped in Solid Neon

October 12, 2012

Author(s)

Warren E. Thompson, Catherine L. Lugez, Marilyn E. Jacox

When a Ne:H2O2 mixture is codeposited at 4.3 K with a beam of neon atoms that have been excited in a microwave discharge, three new, photosensitive absorptions...

Testing Three-body Quantum Electrodynamics with Trapped Ti-20 Ions: Evidence for a Z-Dependent Divergence between Experiment and Calculation

October 10, 2012

Author(s)

Lawrence T. Hudson, C T. Chantler, Mark N. Kinnane, John D. Gillaspy, A.T. Payne, L F. Smale, Albert Henins, Joseph N. Tan, J A. Kimpton, E Takacs, K Makonyi, Joshua M. Pomeroy

We report the measurement of the w (1s2p 1P1 ! 1s2 1S0) resonance line transition energy in helium-like titanium. Our result, 4749.85(7) eV, deviates from the...

Development of a 4K Regenerator and Pulse Tube Test Facility

October 10, 2012

Author(s)

Michael A. Lewis, Peter E. Bradley, Ryan P. Taylor, Ray Radebaugh

Recent advances in superconducting electronic systems are requiring larger envelopes for cooling power, efficiency, and operational environments from commercial...

EUV spectra of Rb-like to Cu-like gadolinium ions in an electron beam ion trap

October 8, 2012

Author(s)

Yuri Ralchenko, Deirdre Kilbane, G. O'Sullivan, John D. Gillaspy, Joseph Reader

Measurements of extreme ultraviolet radiation from highly-charged gadolinium ions were made at the National Institute of Standards and Technology. The ions were...

A consistent methodology to characterize BAW resonators

October 7, 2012

Author(s)

Eduard Rocas, Carlos Collado, Robert Aigner, Jordi Mateu, A Hueltes, James Booth

We present a methodology to characterize BAW resonators both linearly and nonlinearly. The procedure uses physical modeling along with measurements that exploit...

In Situ Atomic Scale Imaging of Electrochemical Lithiation of Silicon

October 7, 2012

Author(s)

Xiao Hua Liu, Sergiy Krylyuk, Albert Davydov, Jian Yu Huang

In lithium-ion batteries, the electrochemical reaction between the electrodes and lithium is a critical process that controls the capacity, cyclability and...

Effect of Polymer Degree of Conversion on Streptococcus mutans Biofilms

October 5, 2012

Author(s)

Alison M. Kraigsley, Kathy Tang, John A. Howarter, Katrice Lippa, Sheng Lin-Gibson, Nancy Lin

The effects of key material properties of polymeric composite restorations on cariogenic oral biofilms are needed to provide insight into the materials' role in...

Freezing of the Local Dynamics in the Relaxor Ferroelectric [Pb(Zn1⁄2Nb2/3})O₃]_0.955[PbTiOd3^]^d0.045

October 5, 2012

Author(s)

Zhijun Xu, Jinsheng Wen, E. Mamontov, Chris Stock, Peter M. Gehring, Guangyong Xu

We report measurements of the neutron diffuse scattering in a single crystal of the relaxor ferroelectric material 95.5%Pb(Zn1/3Nb2/3)O3-4.5%PbTiO3 (PZN-4.5%PT)...

Automated Multiprobe Microassembly using Vision Feedback

October 5, 2012

Author(s)

John D. Wason, John T. Wen, Jason J. Gorman, Nicholas Dagalakis

This paper describes the algorithm development and experimental results of a vision-guided multi-probe microassembly system. The key focus is to develop the...

A Bayesian Approach to the Analysis of Split-Plot Product Arrays and Optimization in Robust Parameter Design

October 4, 2012

Author(s)

Adam L. Pintar

Many robust parameter design (RPD) studies involve a split-plot randomization structure and to obtain valid inferences in the analysis, it is essential to...

Absolute absorption and dispersion of a rubidium vapour in the hyperfine Paschen-Back regime

October 4, 2012

Author(s)

Svenja A. Knappe, L. Weller, K.S. Kleinbach, M.A. Zentile, C.S. Adams, I.G. Hughes

Here we report on measurements of the absolute absorption and dispersion properties of an isotopically pure 87Rb vapour for magnetic fields up to and including...

Impact of photo-assisted collisions on superradiant light scattering with Bose-condensates

October 4, 2012

Author(s)

Lu Deng, Xinyu Luo, Edward W. Hagley, Ruquan Wang, Kuiyi Gao

We present experimental evidence supporting the postulation that the secondary effects of light assisted collisions are the main reason that the superradiant...

Two-photon interference using background-free quantum frequency conversion of single photons emitted by an InAs quantum dot

October 4, 2012

Author(s)

Serkan Ates, Imad I. Agha, Angelo Gulinatti, Ivan Rech, Matthew T. Rakher, Antonio Badolato, Kartik Srinivasan

Quasianalytical modal approach for computing Casimir interactions in periodic nanostructures

October 3, 2012

Author(s)

Francesco Intravaia, Paul S. Davids, Ricardo Decca, Vladimir Aksyuk, Daniel Lopez, Diego A. Dalvit

We present an almost fully analytical technique for computing Casimir interactions between 1D periodic lamellar gratings based on a modal approach. Our method...

15N-Labeled Full-Length Apolipoprotein E4 as an Internal Standard for Mass Spectrometry Quantification of Apolipoprotein E Isoforms

October 2, 2012

Author(s)

Meiyao M. Wang, Illarion V. Turko

Apolipoprotein E isoforms (apoE2, apoE3, and apoE4) strongly affect the likelihood of developing Alzheimers disease (AD) with apoE4 being a major risk factor...

Extending single-photon optimized superconducting transition edge sensors beyond the single-photon counting regime

October 2, 2012

Author(s)

Thomas Gerrits, Brice R. Calkins, Nathan A. Tomlin, Adriana E. Lita, Alan L. Migdall, Richard P. Mirin, Sae Woo Nam

Typically, transition edge sensors resolve photon number of up to 10 or 20 photons, depending on the wavelength and TES design. We extend that dynamic range up...

Erratum: "Developments in determining the gravitational potential using toroidal functions"

October 2, 2012

Author(s)

Howard S. Cohl

We fix several errors in "Developments in determining the gravitational potential using toroidal functions" (Astronomische Nachrichten, Vol. 321, Issue 5/6, p...

Biosynthesis of Athmu, a alpha,gamma-hydroxy-ß-amino acid of pahayokolides A-B

October 2, 2012

Author(s)

Li Liu, Dan Bearden, Juan C. Rodriguez, Kathleen S. Rein

Pahayokolides A-B are cyanobacteria derived non-ribosomal peptides which exhibit cytotoxicity against a number of cancer cell lines. The biosynthetic origin of...

A 4:1 transmission-line impedance transformer for broadband superconducting circuits

October 1, 2012

Author(s)

Leonardo M. Ranzani, Lafe F. Spietz, Jose A. Aumentado, Zoya Popovic

We present a 4 : 1 superconducting transmission-line impedance transformer for cryogenic applications. The device transforms 25 {Ω} in the coplanar waveguide to...

Influence of mercury and selenium chemistries on the progression of cardiomyopathy in pygmy sperm whales, Kogia breviceps

October 1, 2012

Author(s)

Colleen E. Bryan Sallee, William C. Davis, Wayne E. McFee, Carola A. Neumann, Jennifer Schulte, Gregory D. Bossart, Steven J. Christopher

More than half of pygmy sperm whales (Kogia breviceps) that strand exhibit signs of cardiomyopathy (CMP). Many factors may contribute to the development of...

A Low-Complexity Solution to Decode Diversity-Oriented Block Codes in MIMO Systems with Inter-Symbol Interference

October 1, 2012

Author(s)

Hamid Gharavi, Chong Xu

In this paper we firstly propose a block-code based general model to combat the Inter-Symbol Interference (ISI) caused by frequency selective channels in a...

Microsecond Accuracy at Multiple Locations: Is it possible without GPS?

October 1, 2012

Author(s)

Michael A. Lombardi

The microsecond is the most discussed unit in industrial timing systems, because microsecond accuracy is required to support critical infrastructure. Most...

Sequential Estimation of Timebase Corrections for an Arbitrarily Long Waveform

October 1, 2012

Author(s)

Chih-Ming Wang, Paul D. Hale, Jeffrey A. Jargon, Dylan F. Williams, Catherine A. Remley

We present a procedure for correcting the timebase distortion and jitter of temporal waveforms of arbitrary lengths. This is achieved by estimating the timebase...