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Journals

Finite element modeling of structural steel component failure at elevated temperatures

March 12, 2016

Author(s)

Mina S. Seif, Joseph A. Main, Jonathan M. Weigand, Therese P. McAllister, William E. Luecke

A key issue in evaluating the response of structural systems to fire effects is the representation of material behavior at elevated temperatures. In addition to...

Automation of Antimicrobial Activity Screening

March 12, 2016

Author(s)

Samuel P. Forry, Meggan C. Madonna, Daneli Lopez-Perez, Nancy J. Lin, Madeleine D. Pasco

ABSTRACT: Manual and automated methods were compared for routine screening of compounds for antimicrobial activity. Automation generally accelerated assays and...

Centroid and Orientation Precision of Localization Microscopy

March 11, 2016

Author(s)

Craig D. McGray, Craig R. Copeland, Samuel M. Stavis, Jon C. Geist

The concept of localization precision, which is essential to localization microscopy, is formally extended from optical point sources to microscopic rigid...

Oscillator PM-noise reduction from correlated AM-noise

March 11, 2016

Author(s)

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

We demonstrate a novel technique for reducing the phase modulation (PM) noise of an oscillator in steady state as well as under vibration. It utilizes...

Neutron Limit on the Strongly-Coupled Chameleon Field

March 11, 2016

Author(s)

Michael G. Huber, Muhammad D. Arif, David G. Cory, R. Haun, B. Heacock, Joachim Nsofini, Dimitry A. Pushin, P Saggu, C.B Shahi, William M. Snow, A.R. Young

The physical origin of the dark energy which causes the accelerated expansion rate of the universe is one of the major open questions of cosmology. One set of...

Comparison of UV-Induced Inactivation and RNA Damage in MS2 Phage across the Germicidal UV Spectrum

March 11, 2016

Author(s)

Sara E. Beck, Roberto A. Rodriguez, Karl G. Linden, Thomas M. Hargy, Thomas C. Larason, Michael A. Hawkins

Polychromatic UV irradiation is a common method of pathogen inactivation in the water treatment industry. To improve its disinfection efficacy, more information...

Mobility overestimation due to gated contacts in organic field-effect transistors

March 10, 2016

Author(s)

Emily G. Bittle, David J. Gundlach, Oana Jurchescu, James I. Basham, Thomas Jackson

Parameters used to describe the electrical properties of organic field-effect transistors, such as mobility and threshold voltage, are commonly extracted from...

Optical Tracking of Nanoscale Particles in Microscale Environments

March 10, 2016

Author(s)

Pramod Mathai, James A. Liddle, Samuel M. Stavis

The trajectories of nanoscale particles through microscale environments record useful information about both the particles and the environments. Optical...

Field Effects of Current Crowding at Metal-MoS2 Contacts

March 10, 2016

Author(s)

Hui H. Yuan, Guangjun Cheng, Sheng Yu, Angela R. Hight Walker, Curt A. Richter, Qiliang Li

Gate assisted contact-end Kelvin test structures and gate assisted 4-probe structures have been designed and fabricated to measure the field effects of current...

Process Optimization for Lattice-Selective Wet Etching of Crystalline Silicon Structures

March 9, 2016

Author(s)

Ronald G. Dixson, William F. Guthrie, Richard A. Allen, Ndubuisi G. Orji, Michael W. Cresswell, Christine E. Murabito

Lattice-selective etching of silicon is used in a number of applications, but it is particularly valuable in those for which the lattice-defined sidewall angle...

Application of the double paddle oscillator for quantifying environmental, surface mass variation

March 9, 2016

Author(s)

Joshua M. Pomeroy, Haoyan Wei

Sub-monolayer sensitivity to controlled gas adsorption and desorption is demonstrated using a double paddle oscillator (DPO) installed within an ultra-high...

Topochemical Nitridation with Anion Vacancy-Assisted N^3-/O^2- Exchange

March 9, 2016

Author(s)

Riho Mikita, Tomoko Aharen, Takafumi Yamamoto, Fumitaka Takeiri, Tang Ya, Wataru Yoshimune, Koji Fujita, Suguru Yoshida, Katsuhisa Tanaka, Dmitry Batuk, Artem M. Abakumov, Craig Brown, Yoji Kobayashi, Hiroshi Kageyama

We present how the introduction of anion vacancies in oxyhydrides enables a route to access new oxynitrides, by conducting ammonolysis of perovskite oxyhydride...

Development of NIST Standard Reference Material® 2373: Genomic DNA Standards for HER2 Measurements

March 9, 2016

Author(s)

Hua-Jun He, Jamie L. Almeida, Steven Lund, Carolyn R. Steffen, Steven J. Choquette, Kenneth D. Cole

NIST Standard Reference Material (SRM®) 2373 was developed to improve the measurements of the HER2 gene amplification in DNA samples. SRM® 2373 consists of...

Adhesive contact between a rigid spherical indenter and an elastic multi-layer coated substrate

March 8, 2016

Author(s)

Gheorghe Stan, George Adams

In this work the frictionless, adhesive contact between a rigid spherical indenter and an elastic multi-layer coated half-space was investigated by means of an...

Phase Behavior of Poly(3-hexylthiophene-2,5-diyl)

March 8, 2016

Author(s)

Chad R. Snyder, Enrique Gomez

The phase behavior of many conjugated polymers is rich but not yet fully explored. Stiff chain conformations and planar ring-like structures can promote both...

Testing the Digital Thread in Support of Model-Based Manufacturing and Inspection

March 8, 2016

Author(s)

Thomas D. Hedberg, Joshua Lubell, Lyle Fischer, Larry Maggiano, Allison Barnard Feeney

A number of manufacturing companies have reported anecdotal evidence describing the benefits of Model-Based Enterprise (MBE). Based on this evidence, the entire...

Sorption of 14C-labeled multiwall carbon nanotubes by humic acid and polymers: Roles of sorbent properties

March 8, 2016

Author(s)

Qing Zhao, Elijah Petersen, Xilong Wang, Xiaoying Guo, Shu Tao, Baoshan Xing

Developing methods to measure interactions of carbon nanotubes (CNTs) with soils and sediments and understanding the relative strength of each sorbent property...

Linear Time Vertex Partitioning on Massive Graphs

March 7, 2016

Author(s)

Peter M. Mell, Richard Harang, Assane Gueye

The problem of optimally removing a set of vertices from a graph to minimize the size of the largest resultant component is known to be NP-complete. Prior work...

Data Infrastructure for High Throughput Materials Discovery

March 7, 2016

Author(s)

Erik A. Pfeif, Kenneth G. Kroenlein

Increases in computational capability enabled sophisticated materials design to evolve from trial-and-error approaches towards more informed methodologies that...

Comparison of Tritiated-Water Standards by Liquid Scintillation for Calibration of a New Standard Reference Material

March 5, 2016

Author(s)

Ronald Colle, Lizbeth Laureano-Perez, Denis E. Bergeron

A new National Institute of Standards and Technology (NIST) tritiated-water (3H-labeled oxidane) standard was prepared and calibrated. It is the 17th in a...

Dynamics of Pyramidal SiH₃u-^ Ions in ASiH₃ (A = K and Rb) Investigated with Quasielastic Neutron Scattering

March 4, 2016

Author(s)

Carin Osterberg, Henrik Fahlquist, Ulrich Haussermann, Craig Brown, Terrence J. Udovic, Maths Karlsson

The two alkali silanides ASiH 3 (A = K and Rb) were investigated by means of quasielastic neutron scattering, both below and above the order-disorder phase...

Methane Adsorption in Model Mesoporous Material, SBA-15, Studied by Small-Angle Neutron Scattering

March 3, 2016

Author(s)

Wei-Shan NMN Chiang, Emiliano Fratini, Piero Baglioni, Daniel Georgi, Jin-hong Chen, Yun Liu

The understanding of methane adsorption is important for may industrial applications, especially for the shale gas production, where it is critical to...

Complex Hydrides as Room-Temperature Solid Electrolytes for Rechargeable Batteries

March 3, 2016

Author(s)

Petra E. de Jongh, Didier Blanchard, Motoaki Matsuo, Terrence J. Udovic, Shin-Ichi Orimo

Mechanism of Spontaneous Blebbing Motion of Oil-Water Interface: Elastic Stress Generated by a Lamellar-Lamellar Transition

March 3, 2016

Author(s)

Yutaka Sumino, Norifumi L. Yamada, Michihiro Nagao, Takuya Honda, Hiroyuki Kitahata, Yuri B. Melnichenko, Hideki Seto

A mimic of biological blebbing motions constructed by a purely chemical system has been studied to understand nanometer scale structure and their roles in the...

Spontaneous growth of GaN nanowire nuclei on N- and Al-polar AlN: A piezoresponse force microscopy study of crystallographic polarity

March 2, 2016

Author(s)

Matthew D. Brubaker, Alexana Roshko, Paul T. Blanchard, Todd E. Harvey, Norman A. Sanford, Kristine A. Bertness

The polarity of gallium nitride (GaN) nanowire nuclei grown on AlN layers was studied by piezoresponse force microscopy (PFM). N- or Al-polar AlN layers were...

Clinical Implications of Technical Performance in Medical Genome Sequencing

March 2, 2016

Author(s)

Justin M. Zook, James Priest, Rachel Goldfeder, Megan Grove, Daryl Waggott, Matthew Wheeler, Euan Ashley, Marc L. Salit

As next-generation sequencing is becoming routinely applied to clinical care, the predictive characteristics and limitations of whole exome and whole genome...

Identification and Quantification of Seven Fused Aromatic Rings C26H14 Peri-Condensed Benzenoid Polycyclic Aromatic Hydrocarbons in a Complex Mixture of Polycyclic Aromatic Hydrocarbons from Coal Tar

March 2, 2016

Author(s)

Jorge O. Ona Ruales, Ruiz-Morales Yosadara, Stephen A. Wise

A methodology for the characterization of groups of PAHs using a combination of Normal Phase Liquid Chromatography with Ultraviolet-Visible Spectroscopy (NPLC...

3D Segmentation of Stem Cells from Thousands of Confocal Microscopy Images

March 1, 2016

Author(s)

Peter Bajcsy, Mylene H. Simon, Stephen J. Florczyk, Carl G. Simon Jr., Derek Juba, Mary C. Brady

We address the problem of estimating 3D segmentation performance when segmentation is applied to thousands of confocal microscopy images (z-stacks) of cells...

Recommended Protocols for Round Robin Studies in Additive Manufacturing

March 1, 2016

Author(s)

Shawn P. Moylan, Christopher U. Brown, John A. Slotwinski

One way to improve confidence and encourage proliferation of additive manufacturing (AM) technologies and parts is by generating more high quality performance...

The chemical, mechanical, and physical properties of 3-D printed materials composed of TiO2-ABS nanocomposites

March 1, 2016

Author(s)

Zeeshan Ahmed, Matthew Skorski, Jake Esenther, Abigail E. Miller, Hartings Mathew

3-D printing has captured the imagination of many and has enabled a culture of makers. The ability of this process to generate intricate structures from...

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