Journals

Microfluidic-Enabled of Liposomes Elucidate Size-Dependent Transdermal Transport

March 21, 2014

Author(s)

Wyatt N. Vreeland, Renee R. Hood, Eric Kendall, Don L. DeVoe, Julia Finkel, Mariana Junqueira, Zenaide Quezado

Microfluidic synthesis of small and nearly-monodisperse liposomes is used to investigate the size-dependent passive transdermal transport of nanoscale lipid...

EPR AND OSL EMERGENCY DOSIMETRY WITH TEETH: A DIRECT COMPARISON OF TWO TECHNIQUES

March 20, 2014

Author(s)

Marc F. Desrosiers, S Sholom

The OSL dosimetry technique with teeth has been validated against the EPR dosimetry technique through a measurement comparison performed on the same teeth. The...

Zero-field spin-transfer oscillators combining in-plane and out-of-plane magnetized layers

March 20, 2014

Author(s)

William H. Rippard, Stephen E. Russek, Matthew R. Pufall

Excited magnetization dynamics in a spin-valve device consisting of an in-plane polarizer and an out-of-plane free layer were studied numerically. In the case...

Dual-polarization-sensitive kinetic inductance detectors for balloon-borne, sub-millimeter polarimetry

March 20, 2014

Author(s)

James A. Beall, Dan Becker, Justus Brevik, Hsiao-Mei Cho, Gene C. Hilton, Kent D. Irwin, Dale Li, David P. Pappas, Jeffrey L. Van Lanen, Johannes Hubmayr

We are developing arrays of kinetic inductance detectors for sub-millimeter polarimetry that will be deployed on the BLAST balloon-borne instrument. The array...

Bootstrap Variability Studies in ROC Analysis on Large Datasets

March 19, 2014

Author(s)

Jin Chu Wu, Alvin F. Martin, Raghu N. Kacker

The nonparametric two-sample bootstrap is employed to compute uncertainties of measures in receiver operating characteristic (ROC) analysis on large datasets in...

Comparison of independently calculated ab-initio normal-mode displacements for the three C-H stretching vibrations of methanol along the internal rotation path

March 19, 2014

Author(s)

Li-Hong Xu, Ronald M. Lees, Jon T. Hougen, Joel M. Bowman, Xinchuan Huang, Stuart Carter

Comparison of graphical displays of normal-mode coefficients from recent quantum chemical projected-frequency calculations with analogous displays constructed...

Application of Falling-Needle Rheometry to Highly Concentrated DNA Solutions.

March 18, 2014

Author(s)

Jessica L. Burger, Hideki Yamamoto, Takamasa Suzuki, Arno D. Laesecke

High concentration DNA solutions are common both in vitro and in vivo, and understanding the rheological properties is a critical area of bioscience. Our...

Phase Equilibria and Crystal Chemistry of the CaO-¿Nd2O3-CoOz System at 885 °C in Air

March 18, 2014

Author(s)

Winnie K. Wong-Ng, William Laws, Kevin R. Talley, Qingzhen Huang, Jun Yan, Joshua B. Martin, James A. Kaduk

The phase diagram of the CaO-¿Nd2O3-CoOz system at 885 °C in air has been determined. The system consists of two calcium cobaltate compounds that have promising...

Effect of High-(KAPPA) Dielectric Passivation on Electrical Transport and Low-Frequency Noise in Single-Layer MoS_(2) Devices

March 18, 2014

Author(s)

Deepak K. Sharma, Matin Amani, Abhishek Motayed, Pankaj B. Shah, A. Glen Birdwell , Sina Najmaei, Pulickel M. Ajayan, Jun Lou, Madan Dubey, Qiliang Li, Albert Davydov

We have studied temperature-dependent (300K to 77K) electrical characteristics and low-frequency noise (LFN) in chemical vapor deposited (CVD) single layer...

Performance of Coriolis Meters in Transient Gas Flows

March 17, 2014

Author(s)

Jodie G. Pope, John D. Wright

NIST evaluated the instantaneous and totalized flow measured by two commercial coriolis meters under transient flow, pressure, and temperature conditions using...

Highly reproducible and reliable metal/graphene contact by UV-Ozone treatment

March 17, 2014

Author(s)

Wei Li, Christina A. Hacker, Guangjun Cheng, Angela R. Hight Walker, Curt A. Richter, David J. Gundlach, Yiran Liang, boyuan Tian, Xuelei Liang, Lianmao Peng

Resist residue from the device fabrication process is a significant source of contamination at the metal/graphene contact interface. Ultraviolet Ozone (UVO)...

A nonlinear model for gusset plate connections

March 15, 2014

Author(s)

Dat Duthinh, Chiara Crosti

The investigation of the 2007 collapse of the I-35 W Bridge in Minnesota, United States, used very detailed nonlinear finite-element (FE) analysis, which is too...

High Pressure Release and Dispersion of Hydrogen in a Partially Enclosed Compartment : Effect of Natural and Forced Ventilation

March 14, 2014

Author(s)

Kuldeep R. Prasad

The study of compressed hydrogen releases from high-pressure storage systems has practical application for hydrogen and fuel cell technologies. Such releases...

A Call for Artificial Intelligence Tools to Support Manufacturing Innovation

March 14, 2014

Author(s)

Vijay Srinivasan

We are in the midst of a renewed interest in manufacturing. Developed economies in the West are increasingly concerned about the decline in manufacturing in...

Operation of an optically coherent frequency comb outside the metrology lab

March 13, 2014

Author(s)

Laura C. Sinclair, Ian R. Coddington, William C. Swann, Archita Hati, Kana Iwakuni, Nathan R. Newbury

Frequency combs can support cutting-edge measurements in areas that include optical clocks and oscillators, high-accuracy frequency and time transfer, precision...

Highly Stable Positively Charged Dendron-Encapsulated Gold Nanoparticles

March 13, 2014

Author(s)

Tae Joon Cho, Robert I. MacCuspie, Julien C. Gigault, Justin M. Gorham, John T. Elliott, Vincent A. Hackley

We report the development of a novel cationic dendron (TAG1-PCD) and a positively charged gold nanoparticle-dendron conjugate (PCD-AuNP). TAG1-PCD was designed...

Deswelling of Ultrathin Molecular Layer-by-Layer Polyamide Water Desalination Membranes

March 13, 2014

Author(s)

Edwin P. Chan

The selective layer of pressure-induced water desalination membranes is an ultrathin and highly crosslinked aromatic polyamide (PA) film that separates salt...

Characterization of the Effects of Cetane Number Improvers on Diesel Fuel Volatility by Use of the Advanced Distillation Curve Method

March 13, 2014

Author(s)

Jessica L. Burger, Raina V. Gough, Tara Lovestead, Thomas J. Bruno

Cetane number (CN) is a measure of the ignition quality of a fuel for compression ignition engines according to the self-ignition delay and serves a function...

Optical amplification and pulse interleaving for low noise photonics microwave generation

March 12, 2014

Author(s)

Franklyn J. Quinlan, Frederick N. Baynes, Tara M. Fortier, Qiugui Zhou, Allen Cross, Joe Campbelll, Scott A. Diddams

We investigate the impact of pulse interleaving and optical amplification on the spectral purity of microwave signals generated by photodetecting the pulsed...

Frequency, amplitude, and phase measurement in contact resonance atomic force microscopies

March 12, 2014

Author(s)

Gheorghe Stan, Santiago D. Solares Rivera

We analysed the resonance frequency, amplitude, and phase response of the first two eigenmodes of two contact-resonance atomic force microscopy (CR-AFM)...

Twin Plane Re-entrant Mechanism for Catalytic Nanowire Growth

March 12, 2014

Author(s)

Andrew D. Gamalski, Peter W. Voorhees, Renu Sharma, Caterina Ducati, Stephan Hofmann

We observe a twin plane re-entrant based growth mechanism for Au catalyzed Ge nanowire growth using video-rate lattice-resolved environmental transmission...

Determining the solution conformational entropy of oligosaccharides by size-exclusion chromatography with on-line viscometry detection

March 12, 2014

Author(s)

Mallory J. Morris, Andre Striegel

Introduced here is a method for determining the solution conformational entropy of oligosaccharides (-S) that relies on the on-line coupling of size-exclusion...

The Art in Science of microTAS: the 2013 edition!

March 11, 2014

Author(s)

Darwin R. Reyes-Hernandez, Albert Folch, Harp Minhas, Michael Gaitan

Magnetic Structure of the Conductive Triangular-Lattice Antiferromagnet PdCrO₂

March 11, 2014

Author(s)

Hiroshi Takatsu, Gwilherm Nenert, Hiroaki Kadowaki, Hideki Yoshizawa, Mechthild Enderle, Shingo Yonezawa, Yoshiteru Maeno, Jungeun Kim, Naruki Tsuji, Masaki Takata, Yang Zhao, Mark Green, Collin Broholm

We performed neutron single crystal and synchrotron X-ray powder diffraction experiments in order to investigate the magnetic and crystal structures of the...

Observational Results of a Multi-Telescope Campaign to Detect Interstellar Urea [(NH2)2CO]

March 10, 2014

Author(s)

Francis J. Lovas, Anthony J. Remijan, Lewis E. Snyder, Brett A. McGuire, Hsin-Lun Kuo, Leslie W. Looney, Douglas N. Friedel, G. Y. Golbiatnikov, Vadim V. Ilyushin, E A. Alekseev, S F. Dyubko, Benjamin J. McCall, Jan M. Hollis

In this paper, we present observational evidence for gas phase urea observed towards the Sgr B2(N-LMH) region. We show data covering urea transitions from 100...

Estimates of photoluminescence efficiencies in GaN nanowires at high injection levels from steady- state photoluminescence measurements

March 10, 2014

Author(s)

John B. Schlager, Matthew D. Brubaker, Kristine A. Bertness, Norman A. Sanford

Photoluminescence (PL) efficiencies were estimated for individual silicon-doped GaN nanowires grown by plasma assisted molecular beam epitaxy (PAMBE). Steady...

Visualizing Nanoparticle Dissolution by Imaging Mass Spectrometry

March 10, 2014

Author(s)

Christopher W. Szakal, Melissa S. Ugelow, Justin M. Gorham, Andrew R. Konicek, Richard D. Holbrook

We demonstrate the ability to visualize nanoparticle dissolution while simultaneously providing chemical signatures that differentiate between citrate-capped...

A Novel Mechanism for Regulating the Activity of Proliferating Cell Nuclear Antigen by a Small Protein

March 10, 2014

Author(s)

Zvi Kelman, Richard Y. Huang, Zhuo Li, Jerard Hurwitz, Santangelo J. Thomas, Travis H. Hileman, Yopp C. Daniel, Jeffrey W. Hudgens

Chromosomal DNA replication requires the regulated activity of large number of proteins and complexes. Proliferating cell nuclear antigen (PCNA) protein forms a...

Assessing Chemical Heterogeneity at the Nanoscale in Mixed-Ligand Metal-Organic Frameworks with the PTIR Technique

March 10, 2014

Author(s)

Aaron M. Katzenmeyer, Jerome Canivet, Glenn Holland, David Farrusseng, Andrea Centrone

Metal-organic frameworks (MOFs), are crystalline, micro to mesoporous functional materials consisting of inorganic clusters interconnected by organic linkers...

Spin dephasing as a probe of mode temperature, motional state distributions, and heating rates in a two-dimensional ion crystal

March 9, 2014

Author(s)

Brian C. Sawyer, Joseph W. Britton, John J. Bollinger

We employ spin-dependent optical dipole forces to characterize the transverse center-of-mass (COM) motional mode of a two-dimensional trapped ion crystal of...