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NIST Authors in Bold

Displaying 801 - 825 of 73927

BUILDING A DIGITAL TWIN OF AN AUTOMATED ROBOT WORKCELL

May 26, 2023
Author(s)
Deogratias Kibira, Guodong Shao, Rishabh Venketesh
Building a digital twin of a manufacturing system can positively impact its performance with respect to productivity, energy consumption, product quality, and cost. However, leveraging available methods and tools to build a digital twin has been a

Pore Formation Driven by Particle Impact in Laser, Powder-blown Directed Energy Deposition

May 26, 2023
Author(s)
Edward Garboczi, Newell Moser, Samantha Webster, Kornel Ehmann, Jian Cao, Kamel Fezzaa, Tao Sun
Material manufactured by laser, powder-blown directed energy deposition often contains residual pores, which can be detrimental to the strength and fatigue life of a part. We uncover a new kind of pore formation that is driven by powder particle impact

Quantifying Reactor Power Noise - A Case Study on NIST Research Reactor

May 26, 2023
Author(s)
Anil Gurgen, Dagistan Sahin, James R. Whipple
Water cooled reactors experience reactivity changes when voids are present in the coolant. The fraction of coolant in the core diminutions in the event of boiling, and the reactivity feedback can either be positive due to reducing neutron absorption in the

Reference Isotherms for Water Vapor Sorption on Nanoporous Carbon: Results of an Interlaboratory Study

May 26, 2023
Author(s)
Huong Giang Nguyen, Blaza Toman, Roger D. van Zee, Carsten Prinz, Matthias Thommes, Riaz Ahmad, David Kiska, Jamie Salinger, Ian Walton, Krista Walton, Darren Broom, Mike Benham, Humera Ansari, Ronny Pini, Camille Petit, Jurgen Adolphs, Andreas Schreiber, Toshihiro Shigeoka, Yuko Konishi, Kazuyuki Nakai, Matthias Henninger, Thomas Petrzik, Can Kececi, Vladimir Martis, Thomas Pasche, Enzo Mangano, Stefano Brandani

Methods and lessons for business resilience and recovery surveys

May 25, 2023
Author(s)
Maria Watson, Charlotte Brown, John Handmer, Cynthia Kroll, Anne Wein, Jennifer Helgeson, Adam Rose, Noah Dormady, Juri Kim
Surveys are important tools in business resilience and recovery research because of their ability to capture disaggregated economic information; however, they can be difficult and costly due to business operational dynamics and the larger challenges of

Nonlinear Sideband Cooling to a Cat State of Motion

May 25, 2023
Author(s)
Bradley Hauer, Joshua Combes, John Teufel
The ability to prepare a macroscopic mechanical resonator into a quantum superposition state is an outstanding goal of cavity optomechanics. Here, we propose a technique to generate cat states of motion using the intrinsic nonlinearity of a dispersive

Radiation Monitoring System Upgrade for the NBSR

May 25, 2023
Author(s)
James R. Whipple, Dagistan Sahin, Yehonatan Zino
The Radiation Monitoring System (RMS) at the NIST Center for Neutron Research (NCNR) Reactor (National Bureau of Standards Reactor – NBSR) has demonstrated reliability issues due to outdated hardware and lack of vendor support. The existing radiation

The design and performance of an electronic torque standard directly traceable to the revised SI

May 25, 2023
Author(s)
Zane Comden, John-Edward Draganov, Stephan Schlamminger, Frank Seifert, Charles Waduwarage Perera, David B. Newell, Leon Chao
The United States National Institute of Standards and Technology (NIST) has been developing a new device for primary standard realization of torque utilizing established trace- ability to the quantum-electrical International System of Units (SI) standards

Automated extraction of capacitive coupling for quantum dot systems

May 24, 2023
Author(s)
Joshua Ziegler, Florian Luthi, Mick Ramsey, Felix Borjans, Guoji Zheng, Justyna Zwolak
Gate-defined quantum dots (QDs) have appealing attributes as a quantum computing platform. However, near-term devices possess a range of possible imperfections that need to be accounted for during the tuning and operation of QD devices. One such problem is

Predicting broadband resonator-waveguide coupling for microresonator frequency combs through fully connected and recurrent neural networks with and without attention mechanism

May 24, 2023
Author(s)
Ergun Simsek, Masoud Soroush, Gregory Moille, Kartik Srinivasan, Curtis Menyuk
Broadband microresonator frequency combs are being intensely pursued for deployable technologies like optical atomic clocks. Spectral features, such as the dispersion in their coupling to an access waveguide, are critical for engineering these devices for

Recommendations for Federal Vulnerability Disclosure Guidelines

May 24, 2023
Author(s)
Kim B. Schaffer, Peter Mell, Hung Trinh, Isabel Van Wyk
Receiving reports on suspected security vulnerabilities in information systems is one of the best ways for developers and services to become aware of issues. Formalizing actions to accept, assess, and manage vulnerability disclosure reports can help reduce

Determining Steel Weld Qualification and Performance for Hydrogen Pipelines: Phase I Report

May 23, 2023
Author(s)
Matthew Connolly, May Ling Martin, Zack Buck, Newell Moser, Enrico Lucon, Damian Lauria, Peter Bradley, Andrew Slifka, Robert Amaro
This report details the results of Phase I of the DOT/PHMSA sponsored work on "Determining Steel Weld Qualification and Performance for Hydrogen Pipelines". In this work, the goals of Phase I were 1) to perform a literature review of steel weld
Displaying 801 - 825 of 73927