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Journals

Sequence-based U.S. population data for 7 X STR loci

April 26, 2021

Author(s)

Lisa Borsuk, Carolyn R. Steffen, Kevin M. Kiesler, Peter Vallone, Katherine Gettings

The National Institute of Standards and Technology (NIST) U.S. population sample set of unrelated individuals was used to determine allele and haplotype...

A Rod-Packing Hydrogen-Bonded Organic Framework with Suitable Pore Confinement for Benchmark Ethane/Ethylene Separation

April 26, 2021

Author(s)

Xu Zhang, Jia-Xin Wang, Libo Li, Jiyan Pei, Rajamani Krishna, Hui Wu, Wei Zhou, Guodong Qian, Bin Li, Banglin Chen

The discovery of new materials for separating ethane (C 2H 6) from ethylene (C 2H 4) by adsorption is a critical enterprise in the chemical industry. It still...

Absolute 13C/12C isotope amount ratio for Vienna PeeDee Belemnite from infrared absorption spectroscopy

April 26, 2021

Author(s)

Adam Fleisher, Hongming Yi, Abneesh Srivastava, Oleg Polyansky, Nikolai Zobov, Joseph T. Hodges

Neutron Scattering Study of Magnetic Anisotropy in the Tetragonal Antiferromagnet Bi₂CuO₄

April 26, 2021

Author(s)

Bo Yuan, Nicholas Butch, Guangyong Xu, Barry Winn, J. P. Clancy, Young-June Kim

We report neutron scattering study of low energy magnetic excitations in S =1/2 quantum magnet Bi 2CuO 4 with a tetragonal lattice structure. Our observation of...

Maintenance Costs and Advanced Maintenance Techniques in Manufacturing Machinery: Survey and Analysis

April 25, 2021

Author(s)

Douglas Thomas, Brian Weiss

The costs/benefits associated with investing in advanced maintenance techniques is not well understood. Using data collected from manufacturers, we estimate the...

Review of Seismic Risk Mitigation Policies in Earthquake-Prone Countries: Lessons for Earthquake Resilience in the United States

April 25, 2021

Author(s)

Yating Zhang, Juan Fung, Katherine Johnson, Siamak Sattar

This article reviews the current state of practice in seismic risk mitigation, focusing on policies in ten of the most earthquake-prone countries around the...

Reduction of Flicker Phase Noise in High-Speed Photodetectors under Ultrashort Pulse Illumination

April 23, 2021

Author(s)

Dahyeon Lee, Takuma Nakamura, Jizhao Zang, Joe C. Campbell, Scott Diddams, Franklyn Quinlan

High-fidelity photodetection enables the transfer of the low noise inherent to optical oscillators to the microwave domain. However, when photodetecting optical...

Outgassing rate comparison of seven geometrically similar vacuum chambers of different materials and heat treatments

April 23, 2021

Author(s)

James A. Fedchak, Julia Scherschligt, Sefer Avdiaj, Daniel Barker, Stephen Eckel, Ben Bowers, Scott O'Connell, Perry Henderson

We have measured the water and hydrogen outgassing rates of seven vacuum chambers of identical geometry but constructed of different materials and heat...

Discovering Critical KPI Factors from Natural Language in Maintenance Work Orders

April 22, 2021

Author(s)

Michael Sharp, Michael Brundage, Rachael Sexton, Fnu Madhusudanan Navinchandran

Optimizing maintenance practices is a continuous process that must take into account the evolving state of the equipment, resources, workers, and more. To help...

First-Principles Diffusivity Ratios for Atmospheric Isotope Fractionation on Mars and Titan

April 22, 2021

Author(s)

Robert Hellmann, Allan H. Harvey

Recent work used the kinetic theory of molecular gases, along with state-of-the-art intermolecular potentials, to calculate the diffusivity ratios necessary for...

Blackbody Radiation Noise Broadening of Quantum Systems

April 22, 2021

Author(s)

Eric B. Norrgard, Stephen Eckel, Christopher L. Holloway, Eric L. Shirley

Precision measurements of quantum systems often seek to probe or must account for the interaction with blackbody radiation. Over the past several decades, much...

Quantum Blackbody Thermometry

April 22, 2021

Author(s)

Eric B. Norrgard, Stephen Eckel, Christopher L. Holloway, Eric L. Shirley

Blackbody radiation (BBR) sources are calculable radiation sources that are frequently used in radiometry, temperature dissemination, and remote sensing...

Automated Piston Gauge Calibration System.

April 22, 2021

Author(s)

Julia Scherschligt, Yuanchao Yang, Katie M. Schlatter, Robert G. Driver, Christina D. Cross, John S. Quintavalle

Piston gauges or pressure balances are important primary standards for the realization of the SI unit of pressure, the Pascal. The National Institute of...

Superconductivity in Co-Layered LaCoSi

April 22, 2021

Author(s)

Zhengwen He, Rongjin Huang, Kaiyao Zhou, Ye Liu, Shibin Guo, Yuzhu Song, Zhongnan Guo, Shuxian Hu, Lunhua He, Qingzhen Huang, Laifeng Li, Jingyan Zhang, Shouguo Wang, Jiangang Guo, Xianran Xing, Jun Chen

Predicting anomalous quantum confinement effect in van der Waals materials

April 21, 2021

Author(s)

Francesca Tavazza, Kamal Choudhary

Materials with van der Waals bonding are known to exhibit a quantum confinement effect, in which the electronic band gap of the three-dimensional realization of...

Blow-Down Calibration of a Large Ultrasonic Flow Meter

April 21, 2021

Author(s)

Aaron Johnson, Eric Harman, Joey Boyd

Oil and gas production industries use large (diameter > 0.8 m) ultrasonic flow meters (USMs) to measure exhaust gas from flare stacks, emissions from...

Neutron Imaging of Laser Melted SS316 Test Objects with Spatially Resolved Small Angle Neutron Scattering

April 21, 2021

Author(s)

Daniel S. Hussey, Adam J. Brooks, Caroline G. Lowery, Gerald L. Knapp, Bridget E. Cadigan, Shengmin Guo, Leslie G. Butler

A novel neutron far field interferometer is explored for sub-micron porosity detection in laser sintered SS316 test objects. The results shown are images and...

Design of Neutron Microscopes Equipped with Wolter-Mirror Condenser and Objective Optics for High-Fidelity Imaging and Beam Transport

April 21, 2021

Author(s)

Daniel S. Hussey, B. Khaykovich

We present and compare designs of three types of neutron microscopes for high-resolution neutron imaging. Like optical microscopes, our neutron microscopes have...

Heat transport capability and fluid flow neutron radiography of three-dimensional oscillating heat pipes

April 21, 2021

Author(s)

Daniel S. Hussey, David L. Jacobson, R. A. Winholtz, Hongbin Ma, Corey Borgmeyer, Corey Wilson

An experimental investigation into the parameters affecting heat transport in two three-dimensional oscillating heat pipes (OHP) was implemented. A three...

Thermal And Visual Observation Of Water And Acetone Oscillating Heat Pipes

April 21, 2021

Author(s)

Daniel S. Hussey, David L. Jacobson, Hongbin Ma, R. A. Winholtz, Corey Wilson, Corey Borgmeyer

Identical oscillating heat pipes (OHP) charged separately with water and acetone were observed thermally and visually at varying condenser temperatures and heat...

High resolution neutron radiography analysis of proton exchange membrane fuel cells

April 21, 2021

Author(s)

Daniel S. Hussey, David L. Jacobson

Neutron radiography enables direct visualization and quantification of many water transport phenomena in proton exchange membrane fuel cells (PEMFCs). The...

Water Distribution Variation in Partially Saturated Granular Materials Using Neutron Imaging

April 21, 2021

Author(s)

Daniel S. Hussey, Felix Kim, Dayakar Penumadu

The use of neutron imaging is demonstrated for visualizing and quantifying water content in partially saturated granular porous media. Due to the unique...

Average Soil Water Retention Curves Measured by Neutron Radiography

April 21, 2021

Author(s)

Daniel S. Hussey, David L. Jacobson, Chu-lin Cheng, Misun Kang, Juske Horita, sophie voisin, Hassina Bilheux, Warren Jeffery, Edward Perfect

Water retention curves are essential for understanding the hydrologic behavior of partially- saturated porous media and modeling flow transport processes within...

Accurate measurement of the through-plane water content of proton-exchange membranes using neutron radiography

April 21, 2021

Author(s)

Daniel S. Hussey, David L. Jacobson, Dusan Spernjak, Adam Weber, Rangachary Mukundan, Joseph Fairweather, Eric Brosha, John Davey, Jacob Spendelow, Rodney Borup

The water sorption of proton-exchange membranes (PEMs) was measured in situ using high-resolution neutron imaging in small-scale fuel-cell test sections. A...

Effects of Cathode Corrosion on Through-Plane Water Transport in Proton Exchange Membrane Fuel Cells

April 21, 2021

Author(s)

Daniel S. Hussey, Joseph Fairweather, Dusan Spernjak, Adam Weber, David Harvey, Silvia Wessell, David L. Jacobson, Kateryna Artyushkova, Rangachary Mukundan, Rodney Borup

The corrosion of carbon in the electrode supports of proton-exchange-membrane fuel cells leads to electrode collapse, reduced active catalyst area, and...

Far-field interference of a neutron white beam and the applications to noninvasive phase-contrast imaging

April 21, 2021

Author(s)

Michael G. Huber, Daniel S. Hussey, Muhammad D. Arif, David L. Jacobson, Jacob LaManna, Wakana Ueno, Han Wen, Dmitry Pushin, Dusan Sarenac, David Cory, Houxun Miao, Takenao Shinohara, Joseph Parker

The phenomenon of interference plays a crucial role in the field of precision measurement science. Waveparticle duality has expanded the well-known interference...

High spatial resolution neutron detector based on event reconstruction of neutron capture in gadolinium oxysulfide scintillators

April 21, 2021

Author(s)

Daniel S. Hussey, Jacob LaManna, Eli Baltic, David L. Jacobson

We report on efforts to improve the achievable spatial resolution in neutron imaging by centroiding the scintillation light from gadolinium oxysulfide...

Demonstration of focusing Wolter mirrors for neutron phase and magnetic imaging

April 21, 2021

Author(s)

Daniel S. Hussey, Han Wen, Huarui Wu, Thomas R. Gentile, Wangchun Chen, David L. Jacobson, Jacob LaManna, B. Khaykovich

Image-forming focusing mirrors were employed to demonstrate two different modalities of neutron imaging, phase imaging with a far-field interferometer, and...

Three Phase-Grating Moire Neutron Interferometer for Large InterferometerArea Applications

April 21, 2021

Author(s)

Michael G. Huber, D. Sarenac, D. A. Pushin, Houxun Miao, Daniel S. Hussey, D G. Cory, Muhammad D. Arif, David L. Jacobson, Jacob LaManna, Ben Heacock

We demonstrate a three phase-grating neutron interferometer as a robust candidate for large area interferometry applications and characterization of materials...

Feasibility evaluation of a neutron grating interferometer with an analyzer grating based on a structured scintillator

April 21, 2021

Author(s)

Daniel S. Hussey, Youngju Kim, Jongyul Kim, Seung W. Lee

We introduce an analyzer grating based on a structured scintillator fabricated by a gadolinium oxysulfide powder filling method for a symmetric Talbot-Lau...

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