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Displaying 5426 - 5450 of 74364

Bridging Analog LMR to LTE MCPTT Communications

December 18, 2020
Author(s)
Christopher J. Walton, Chic J. O'Dell
This paper explores a low-cost method to bridge analog public safety Land mobile radio (LMR) systems into a standards based Long Term Evolution (LTE) MCPTT system. Design goals included robustness, cost, and the creation of a system that closely conforms

Josephson Microwave Sources Applied to Quantum Information Systems

December 18, 2020
Author(s)
Adam J. Sirois, Manuel C. Castellanos Beltran, Anna E. Fox, Samuel P. Benz, Peter F. Hopkins
Quantum computers with thousands or millions of qubits will require a scalable solution for qubit control and readout electronics. Colocating these electronics at millikelvin temperatures has been proposed and demonstrated, but there exist significant

NIST Scientific Foundation Reviews

December 18, 2020
Author(s)
John M. Butler, Hariharan K. Iyer, Richard A. Press, Melissa Taylor, Peter Vallone, Sheila Willis
The National Institute of Standards and Technology (NIST) is a scientific research agency that works to advance measurement science, standards, and technology and that has been working to strengthen forensic science methods for almost a century. In recent

An Integrated Set of XML Tools – User Guide

December 16, 2020
Author(s)
Thomas R. Kramer, Zeid Kootbally, Craig Schlenoff
This user guide describes an integrated set of C++ software tools for manipulating XML (eXtensible Markup Language) schemas and XML instance files. The tools are: - xmlSchemaParser - parses and reformats XML schema files, prints type derivation hierarchies

Heat Transfer Analysis Study for the Design of the New Polychromatic Beam Neutron Reflectometer CANDOR (Chromatic Analysis Neutron Diffractometer Or Reflectometer)

December 16, 2020
Author(s)
Lior Uzan, Juscelino Leao, Christoph W. Brocker, Daniel A. Mattes, Tanya J. Dax
A newly developed polychromatic beam neutron reflectometer CANDOR (Chromatic Analysis Neutron Diffractometer Or Reflectometer) on NG-1 at the NIST Center for Neutron research (NCNR) utilizes a wavelength-sensitive neutron detector consisting of 324

Measuring Manufacturing’s Significance in the USA

December 16, 2020
Author(s)
Katherine C. Morris, Douglas S. Thomas
Economic value added is a primary metric for measuring manufacturing activity; however, this metric and others exclude approximately half of the economic activity necessary for producing manufactured goods. With the recent disruption in the supply of goods

Merging Geospatial echnologies with cross reality in the context of smart manufacturing systems

December 16, 2020
Author(s)
Raffaele de Amicis, William Z. Bernstein, Johannes Scholz, Rafael Radkowski, Bruno Simoes, Joshua Lieberman, Eric Prather
It is widely acknowledged that geospatial information has immense applicability across a vast spectrum of human endeavors. Examples include oil and gas exploration, energy management, smart city engineering, weather forecasting, tracking, aviation

Observation of Anti-Damping Spin-Orbit Torques Generated by In-Plane and Out-of-Plane Spin Polarizations in MnPd 3

December 16, 2020
Author(s)
Mahendra DC, Ding-Fu Shao, Vincent D.-H. Hou, Patrick Quarterman, Ali Habiboglu, Brooks Venuti, Masashi Miura, Brian Kirby, Arturas Vailionis, Chong Bi, Xiang Li, Fen Xue, Yen-Lin Huang, Yong Deng, Shy-Jay Lin, Wilman Tsai, Serena Eley, Weigang Wang, Julie A. Borchers, Evgeny Y. Tsymbal, Shan X. Wang
High spin-orbit torques (SOTs) generated by topological materials and heavy metals interfaced with a ferromagnetic layer show promise for next generation magnetic memory and logic devices. SOTs generated from the in-plane spin polarization along y-axis

Realizing Environmentally-Conscious Manufacturing in the Post-COVID-19 Era

December 16, 2020
Author(s)
Nancy Diaz-Elsayed, Julius Schoop, KC Morris
The unique and unprecedented challenges of the COVID-19 pandemic have resulted in significant disruptions to diverse manufacturing supply chains across the globe. The negative economic impacts of these unexpected and rapid changes in demand and available

Simulation of Copper Electrodeposition in Millimeter Size Through-Silicon Vias

December 16, 2020
Author(s)
Trevor Braun, Daniel Josell, Thomas P. Moffat
Computational predictions of copper deposition in millimeter size through-silicon vias (mm-TSV) are presented based on localized breakdown of a co-adsorbed polyether-chloride suppressor layer. The model builds upon previous work on localized Cu deposition

Assessing Human Exposure to Chemicals in Materials, Products and Articles: A Modular Mechanistic Framework

December 15, 2020
Author(s)
Clara M. Eichler, Ying Xu, Jianping Cao, Charles J. Weschler, Tunga Salthammer, Glenn C. Morrison, Yinping Zhang, Corinne Mandin, Wenjuan Wei, Patrice Blondeau, Dustin Poppendieck, Elaine A. Cohen Hubal, Xiaoyu Liu, Christiaan Delmaar, Antti J. Koivisto, Oliver Jolliet, Hyeong-Moo Shin, Miriam L. Diamond, Chenyang Bi, John C. Little
This paper describes a modular mechanistic framework for predicting chemical emission from indoor sources, partitioning among indoor compartments and exposure to humans present in the indoor environment focusing on semi-volatile organic compounds (SVOCs)

Distributing Time and Frequency Information

December 15, 2020
Author(s)
Judah Levine
This chapter discusses the statistics that are used to characterize the performance of clocks, oscillators, and the networks that are used to calibrate and synchronize and calibrate clocks and oscillators by means of data received from global navigation
Displaying 5426 - 5450 of 74364