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Search Publications

NIST Authors in Bold

Displaying 8626 - 8650 of 73697

A Novel Low Loss and Lightweight Magnetic Material for Electrical Machinery

February 10, 2020
Author(s)
Michael J. Donahue, Farzad Ahmadi, Yilmaz Sozer, Igor Tsukerman
A new low loss and light weight core material, with applications in electrical machinery, is made of highly packed and insulated magnetic microwires (MWs). These MWs are aligned in such a way as to guide the flux in rotor/stator, with the ultimate goal of

Assessing the Predictive Capability for Real-Scale Residential Upholstered Furniture Mock-Up Fires using Cone Calorimeter Measurements. Part 1: Real-Scale Experiments

February 10, 2020
Author(s)
William M. Pitts, Martin Werrel, Marco G. Fernandez, Mary A. Long, Evan A. Eisenberg, James J. Filliben, Cory D. Runyon
This is the first of three reports describing a study designed to assess the feasibility of utilizing small-scale measurements in a cone calorimeter as inputs for predicting the burning behavior of real-scale residential upholstered furniture (RUF). Here

Metal adsorbate interactions and the convergence of density functional calculations

February 10, 2020
Author(s)
Christoph Rohmann, Maicol A. Ochoa, Michael P. Zwolak
The adsorption of metal atoms on nanostructures, such as graphene and nanotubes, plays an important role in catalysis, electronic doping, and tuning material properties. Quantum chemical calculations permit the investigation of this process to discover

Microwave Modeling and Characterization of Superconductive Circuits for Quantum Voltage Standard Applications at 4 Kelvin

February 10, 2020
Author(s)
Alirio De Jesus Soares Boaventura, Dylan F. Williams, Richard A. Chamberlin, Jerome G. Cheron, Anna E. Fox, Paul D. Dresselhaus, Peter F. Hopkins, Ian W. Haygood, Samuel P. Benz
We developed a cryogenic multiline thru-reflect-line (TRL) calibration kit for microwave characterizing of superconductive circuits used in the Josephson arbitrary waveform synthesizer of the national institute of standards and technology (NIST). We also

Modeling and Improving Named Data Networking over IEEE 802.15.4

February 10, 2020
Author(s)
Amar Abane, Paul Muhlethaler, Samia Bouzefrane, Abdella Battou
Enabling NDN in real-world IoT deployments becomes essential to benefit from ICN/NDN features in current IoT systems. To design realistic NDN-based communication solutions for IoT, revisiting mainstream technologies such as low-power wireless standards may

Compressive deformation analysis of large area pellet-fed material extrusion 3D printed parts in relation to in situ thermal imaging*

February 8, 2020
Author(s)
Eduardo M. Trejo, Xavier Jimenez, Kazi M. Billah, Jonathan Seppala, Ryan Wicker, David Esplain
In large area pellet extrusion additive manufacturing, the temperature of the substrate just before the deposition of a new subsequent layer affects the overall structure of the part. Warping and cracking occur if the substrate temperature is below a

Dynamic Arrest of Adhesive Hard Rod Dispersions

February 7, 2020
Author(s)
Ryan P Murphy, Harold Wickes Hatch, Nathan NMN Mahynski, Vincent K. Shen, Norman J. Wagner
Dynamic arrest transitions of model, thermoreversible dispersions of adhesive hard rods are measured as a function of absolute temperature Τ = 15 -40 °C, aspect ration L/D{approximately equal}3-7, and volume fraction φ0.1-0.5. The critical gel temperature

Workshop on Applied Category Theory: Bridging Theory and Practice

February 7, 2020
Author(s)
Spencer J. Breiner, Blake S. Pollard, Eswaran Subrahmanian
This report presents the summary of a workshop held at NIST on March 15-16, 2018 on the topic of applied category theory (ACT). The meeting had two main goals: (i) mapping the current ACT landscape and (ii) developing a roadmap for transitioning the field

Low-temperature time-resolved phosphorescence excitation emission matrices for the analysis of phenanthro-thiophenes in chromatographic fractions of complex environmental extracts

February 6, 2020
Author(s)
Sadia Arif, Maha Al-Tameemi, Walter Brent Wilson, Stephen Wise, Fernando Barbosa Jr., Andres Campiglia
Polycyclic aromatic sulfur heterocycles (PASHs) are sulfur analogues of polycyclic aromatic hydrocarbons (PAHs) widely found in environmental samples exposed to oil contamination. Despite their potential carcinogenic and mutagenic properties, only few

Collapse Risk of Steel Special Moment Frames per FEMA P695

February 5, 2020
Author(s)
Matthew S. Speicher, Jazalyn D. Dukes, Kevin K. Wong
The American Society of Civil Engineers (ASCE) performance-based seismic design standard, ASCE 41, contains methodologies used by practicing engineers to assess existing buildings and to design new buildings. In 2015, the National Institute of Standards

Insights into the Water Transport Mechanism in Polymeric Membranes from Neutron Scattering

February 5, 2020
Author(s)
Edwin P. Chan, Bradley R. Frieberg, Jacob Daniel Tarver, Madhusudan Tyagi, WenXu Zhnag, Bryan Coughlin, Christopher M. Stafford, Abhishek Roy, Steve Rosenberg, Christopher L. Soles
Polymeric membranes are ubiquitous in a number of transport ap- plications including gas separation, water desalination, solid state batteries and fuel cells. The permeability and selectivity of these membranes are intimately linked to the structure and

Measurements of Melt Pool Geometry and Cooling Rates of Individual Laser Traces on IN625 Bare Plates

February 5, 2020
Author(s)
Brandon M. Lane, Jarred C. Heigel, Richard E. Ricker, Ivan Zhirnov, Vladimir Khromchenko, Jordan S. Weaver, Thien Q. Phan, Mark R. Stoudt, Sergey Mekhontsev, Lyle E. Levine
The complex physical nature of the laser powder bed fusion (LPBF) process warrants use of multiphysics computational simulations to predict or design optimal operating parameters or resultant part qualities such as microstructure or defect concentration

Case Studies in Cyber Supply Chain Risk Management: Anonymous Consumer Goods Company

February 4, 2020
Author(s)
Jon M. Boyens, Celia Paulsen, Nadya Bartol, Kris Winkler, James Gimbi
The Case Studies in Cyber Supply Chain Risk Management series engaged with several companies that are leaders in managing cyber supply chain risk. These case studies build on the Best Practices in Cyber Supply Chain Risk Management case studies originally

Case Studies in Cyber Supply Chain Risk Management: Anonymous Renewable Energy Company

February 4, 2020
Author(s)
Jon M. Boyens, Celia Paulsen, Nadya Bartol, Kris Winkler, James Gimbi
The Case Studies in Cyber Supply Chain Risk Management series engaged with several companies that are leaders in managing cyber supply chain risk. These case studies build on the Best Practices in Cyber Supply Chain Risk Management case studies originally

Case Studies in Cyber Supply Chain Risk Management: Mayo Clinic

February 4, 2020
Author(s)
Jon M. Boyens, Celia Paulsen, Nadya Bartol, Kris Winkler, James Gimbi
The Case Studies in Cyber Supply Chain Risk Management series engaged with several companies that are leaders in managing cyber supply chain risk. These case studies build on the Best Practices in Cyber Supply Chain Risk Management case studies originally

Case Studies in Cyber Supply Chain Risk Management: Palo Alto Networks, Inc.

February 4, 2020
Author(s)
Jon M. Boyens, Celia Paulsen, Nadya Bartol, Kris Winkler, James Gimbi
The Case Studies in Cyber Supply Chain Risk Management series engaged with several companies that are leaders in managing cyber supply chain risk. These case studies build on the Best Practices in Cyber Supply Chain Risk Management case studies originally

Case Studies in Cyber Supply Chain Risk Management: Seagate Technology

February 4, 2020
Author(s)
Jon M. Boyens, Celia Paulsen, Nadya Bartol, Kris Winkler, James Gimbi
The Case Studies in Cyber Supply Chain Risk Management series engaged with several companies that are leaders in managing cyber supply chain risk. These case studies build on the Best Practices in Cyber Supply Chain Risk Management case studies originally
Displaying 8626 - 8650 of 73697
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