Journals

Time-domain measurements of afterpulsing in InGaAs/InP SPAD gated with sub-nanosecond pulses

May 28, 2012

Author(s)

Alessandro Restelli, Joshua C. Bienfang, Alan L. Migdall

We experimentally investigate afterpulsing in an InGaAs single-photon avalanche diode (SPAD) operating in the biasing and sensing regime of periodic-gating

A Robust Microporous Metal-Organic Framework Constructed from a Flexible Organic Linker for Highly Selective Sorption of Methanol over Ethanol and Water

May 28, 2012

Author(s)

Qian Huang, Jianfeng Cai, Hui Wu, Yabing He, Banglin Chen, Guodong Qian

A microporous metal-organic framework MOF 1 [Zn(L) 2(methanol) 2](H 2L = (1 R, 3S)-1,2,2-trimethyl-3-(pyridin-4-ylcarbamoyl)cyclopentanecarbocylic acid)

Spectroscopy and Thermometry of Drumhead Modes in a Mesoscopic Trapped-Ion Crystal Using Entanglement

May 25, 2012

Author(s)

Brian C. Sawyer, Joseph W. Britton, Adam Keith, C.-C Joseph Wang, James K. Freericks, Hermann Uys, Michael Biercuk, John J. Bollinger

We demonstrate a method of sensitive detection and thermometry of individual modes in cold ( sim1 mK), planar one-component ion plasmas. Exploiting precise

Reconstructing the past from imprecise knowledge of the present: Some examples of non uniqueness in solving parabolic equations backward in time.

May 24, 2012

Author(s)

Alfred S. Carasso

Identifying sources of ground water pollution, and deblurring astronomical galaxy images, are two important applications generating growing interest in the

Biomimetic Supported Lipid Bilayers with High Cholesterol Content Formed by α-helical Peptide-induced Vesicle Fusion

May 24, 2012

Author(s)

Gregory J. Hardy, Rahul Nayak, S. Munir Alam, Joseph G. Shapter, Frank N. Heinrich, Stefan Zauscher

In this study, we present a technique to create a complex, high cholesterol-containing SLB using α-helical (AH) peptide-induced vesicle fusion. Vesicles

Application of the Advanced Distillation Curve Method to the Variability of Jet Fuels

May 24, 2012

Author(s)

Jessica L. Burger, Thomas J. Bruno

In this paper, we report the application of the advanced distillation-curve approach to the gas turbine fuels Jet-A, JP-8, and JP-5, in order to obtain

Perfluoroalkyl Contaminants in Plasma of Five Sea Turtle Species: Comparisons in Concentration and Potential Health Risks

May 23, 2012

Author(s)

Jennifer M. Lynch, Lily Ngai, Joanne Braun-McNeill, Larry Wood, Kelly Stewart, Steven O'Connell, John R. Kucklick

We compared the plasma concentration of 13 perfluorinated contaminants (PFCs) in five sea turtle species. Perfluorooctane sulfonate (PFOS) was predominant in

Real-time measurements of plasma photoresist modifications: The role of plasma vacuum ultraviolet radiation and ions

May 23, 2012

Author(s)

Weilnboeck Florian, Nirav Kumar, Gottlieb Oehrlein, Ting-Ying Chung, D Graves, Mingqi Li, Eric A. Hudson, Eric C. Benck

Plasma-induced roughness development of photoresist (PR) can be due to synergistic interactions of surface modifications introduced by ions, bulk material

LDPC for QKD Reconcilation

May 22, 2012

Author(s)

Alan Mink, Anastase Nakassis

We present the Low Density Parity Check (LDPC) forward error correction algorithm adapted for the Quantum Key Distribution (QKD) protocol in a form readily

Modeling the Peak Cutting Temperature During High-Speed Machining of AISI 1045 Steel

May 22, 2012

Author(s)

Timothy J. Burns, Steven P. Mates, Richard L. Rhorer, Eric P. Whitenton, Debasis Basak

This paper presents new experimental data on AISI 1045 steel from the NIST pulse-heated Kolsky Bar Laboratory. The material is shown to exhibit a stiffer

Water is a Poor Solvent for Densely Grafted Poly(ethylene oxide) Chains: A Conclusion Drawn from a Self-Consistent Field Theory-Based Analysis of Neutron Reflectivity and Surface Pressure-Area Isotherm Data

May 22, 2012

Author(s)

Hoyoung Lee, Dae Hwan Kim, Kevin N. Witte, Kimberly Ohn, Je Choi, Bulent Akgun, Sushil K. Satija, You-Yeon Won

By using a combined experimental and theoretical approach, a model poly(ethylene oxide) (PEO) brush system, prepared by spreading a poly(ethylene oxide)-poly(n

Time-Resolved Vibrational Spectroscopy of [FeFe-Hydrogenase Model Compounds

May 21, 2012

Author(s)

Edwin J. Heilweil, Christopher J. Stromberg

Fe2(μ-S2C3H6)(CO)6 is a model compound found to mimic the active site structure of the [FeFe]-hydrogenases. To observe the time-dependent behavior of this

Frequency characterization of a swept and fixed-wavelength external-cavity quantum cascade laser by use of a frequency comb

May 21, 2012

Author(s)

Kevin O. Knabe, Paul A. Williams, Fabrizio R. Giorgetta, Chris Armacost, Michael Radunsky, Nathan R. Newbury

The instantaneous optical frequency of an external-cavity quantum cascade laser (QCL) is characterized by comparison to a near-infrared frequency comb

Effect of Diamond Nanolubricant on R134a Pool Boiling Heat Transfer

May 21, 2012

Author(s)

Mark A. Kedzierski

This paper quantifies the influence of diamond nanoparticles on the boiling performance of R134a/polyolester mixtures on a roughened, horizontal, flat surface

Methodological study on toxicity of fullerene (C60) in sediment-dwelling invertebrate Chironomus riparius larvae

May 19, 2012

Author(s)

Greta Waissi-Leinonen, Elijah Petersen, Kukka Tervonen, Jarkko Akkanen, Matti Lepp¿nen, Jussi Kukkonen

Fullerenes (C60) are one of the most common nanoparticles and are already in use for commercial applications which lead inevitably to their release into

Wave numbers and pressure-induced shifts of Ar I atomic lines measured by Fourier transform spectroscopy

May 18, 2012

Author(s)

D. Veza, Craig J. Sansonetti, Marc L. Salit, John C. Travis

Wave numbers and pressure-induced shifts of 19 argon emission lines were measured with high accuracy using a UV/visible Fourier transform spectrometer (FTS)

Micromagnetic investigation of periodic cross-tie/vortex wall geometry

May 18, 2012

Author(s)

Michael J. Donahue

A systematic series of micromagnetic simulations on periodic cross-tie/vortex wall structures in an ideal soft film at various width, thickness, and period

Engineering and Analysis of Surface Interactions in a Microfluidic Herringbone Micromixer

May 18, 2012

Author(s)

Thomas P. Forbes, Jason G. Kralj

We developed a computational model and theoretical framework to investigate the geometrical optimization of particle-surface interactions in a herringbone

Developing digital tissue phantoms for hyperspectral imaging of ischemic wounds

May 18, 2012

Author(s)

David W. Allen, Jeeseong Hwang, Maritoni A. Litorja, Joseph P. Rice

Biomedical optical imaging has the potential to achieve high spatial resolution and high functional sensitivity for non-invasive assessment of ischemic wounds

Isomorphism Classes of Edwards Curves over Finite Fields

May 18, 2012

Author(s)

Reza Farashahi, Dustin Moody, Hongfeng Wu

Edwards curves are a new model for elliptic curves, which have attracted notice in cryptography. We give exact formulas for the number of F_q-isomorphism

Chemical Pressure Effects on Pyrochlore Spin Ice

May 18, 2012

Author(s)

H. D. Zhou, J. G. Cheng, A. M. Hallas, C. R. Wiebe, G. Li, L. Balicas, J. S. Zhou, J. B. Goodenough, Jason S. Gardner, E. S. Choi

Ho 2Ge 2O 7 with the cubic pyrochlore structure was prepared by a high temperature high pressure technique. Detailed DC susceptibility, AC susceptibilty, and

Effects of Substrate Composition and Roughness on Mechanical Properties and Conformality of Parylene C Coatings

May 17, 2012

Author(s)

Adrian E. Verwolf, Grady S. White, Chris M. Poling

Roughness and nanomechanical properties of poly(chloro-para-xylylene) coatings are shown to be affected by both chemical composition and surface roughness of

CfA4: 93 Type Ia Supernova Light Curves from the CfA

May 17, 2012

Author(s)

Malcolm Hicken, Peter Challis, Robert Kirshner, Claire E. Cramer, Armin Rest, W. M. Wood-Vasey, Gaspar Bakos, Perry Berlind, Warren R. Brown, Nelson Caldwell, Michael Calkins, Maria Contreras, Gil Esquerdo, Mark Everett, Emilio Falco, Ted Groner, Matthew J. Holman, Robert Hutchison, Michael Pahre, Wayne Peters, Benjamin Ripman, Timothy Spahr, Andrew Szentgyorgyi, Manuel A. Torres, Amali Vaz

We present multi-band photometry of 93 type-Ia supernovae (SN Ia). Data was acquired with the Keplercam instrument between 2006 and 2011 at the F. L. Whipple

Pronounced micro-segregation in a sorbitol water mixture observed through variable temperature neutron scattering

May 16, 2012

Author(s)

Shin G. Chou, Sheila Khodadadi, Joseph E. Curtis, Susan Krueger, Evgenyi Shalaev, Alan Soper, Andy Fitch, T Narayanan, Michael Szutucki, Marcus T. Cicerone

In this study, we use small and wide angle X-ray and neutron scattering measurements, to study the structure of concentrated sorbitol solutions and glasses at

Extraction of Illumination Efficiency by Solely Radiometric Measurements for Improved Brightness-Temperature Characterization of Microwave Blackbody Target

May 16, 2012

Author(s)

Dazhen Gu, Derek A. Houtz, James P. Randa, Dave K. Walker

We report our recent progress towards the deveopment of microwave brightness-temperature (BT) standards. As one of the crucial parameters, the antenna beam

Probing the Nature of Ibuprofen Confined in Mesoporous Media by Neutron Vibrational Spectroscopy and First-Principles Calculations

May 15, 2012

Author(s)

Ken K. Qian

Purpose: In this paper, the nature of ibuprofen incorporated into both mesoporous silicon dioxide and magnesium aluminometasilicate by sublimation and

Indoor Air Quality in Sustainable, Energy Efficient Buildings

May 15, 2012

Author(s)

Andrew K. Persily, Steven J. Emmerich

Building designers, contractors, owners and managers have long been challenged with providing quality indoor environments at a reasonable energy cost. Current

LTB4 IS A SIGNAL RELAY MOLECULE DURING NEUTROPHIL CHEMOTAXIS

May 15, 2012

Author(s)

Philippe V. Afonso, Mirkka Janka-Junttila, Young Jong Lee, Colin P. McCann, Charlotte M. Oliver, Khaled A. Aamer, Wolfgang Losert, Marcus T. Cicerone, Carol A. Parent

Neutrophil recruitment to inflammation sites purportedly depends on sequential waves of chemoattractants. Current models propose that LTB4, a secondary

Optimization of Imaging Polymer Based Scaffolds Using X-Ray Microcomputed Tomography

May 15, 2012

Author(s)

David E. Morris, Melissa L. Mather, Carl Simon Jr., John A. Crowe

The performance of polymer based scaffolds used in regenerative medicine is linked to their structural properties and as such strategies for structural

Frequency-selective contrast on variably doped p-type silicon with a scanning microwave microscope

May 14, 2012

Author(s)

Atif A. Imtiaz, Thomas M. Wallis, SangHyun S. Lim, H. Tanbakuchi, H-P Huber, A. Hornung, P. Hinterdorfer, J. Smoliner, F. Kienberger, Pavel Kabos

We report frequency dependent contrast in d(S11)/dV measurements of a variably doped p-type silicon sample in the frequency range from 2GHz to 18GHz. The