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Search Publications

NIST Authors in Bold

Displaying 12026 - 12050 of 13225

A NIST-Hosted Virtual Workshop on Measuring SARS-CoV-2 in Wastewater and Fecal Material: A Call for Standards

September 28, 2020
Author(s)
Sandra M. Da Silva, Paulina K. Piotrowski, Christina M. Jones, Stephanie L. Servetas, Nancy J. Lin, Katrice A. Lippa, Scott A. Jackson
… The National Institute of Standards and Technology (NIST) has leveraged its expertise in chemical and biological metrology and standards … challenges associated with the measurement of SARS-CoV-2 in human stool and wastewater. The workshop was comprised of … A NIST-Hosted Virtual Workshop on Measuring SARS-CoV-2 in Wastewater and Fecal Material: A Call for Standards …

Estimating Likelihood Ratio (LR) for Firearm Evidence Identifications in Forensic Science

September 15, 2020
Author(s)
Jun-Feng Song, Zhe Chen, Theodore V. Vorburger, Johannes A. Soons
… researchers of the National Institute of Standards and Technology (NIST) recently developed a Congruent Matching … CMC method, a likelihood ratio (LR) procedure is proposed in this paper aiming to provide a scientific basis for … Likelihood Ratio (LR) for Firearm Evidence Identifications in Forensic Science …

NIST NeXT: a system for truly simultaneous neutron and X-ray tomography

September 14, 2020
Author(s)
Jacob LaManna, Daniel S. Hussey, Victoria H. DiStefano, Eli Baltic, David L. Jacobson
… fluids, such as water or oil, from solid and gas phases in three-phase systems whereas X-rays excel at identifying … the two methods, the National Institute of Standards and Technology (NIST) has developed the Neutron and X-ray … user facility program. Significant efforts have resulted in distributable software packages to facilitate image …

Zero Trust Architecture

August 10, 2020
Author(s)
Scott W. Rose, Oliver Borchert, Stuart Mitchell, Sean Connelly
… trust could improve an enterprise's overall information technology security posture. …

The UCEF Approach to Tool Integration for HLA Co-Simulations

July 15, 2020
Author(s)
Thomas P. Roth, Christopher W. Lemieux, Martin J. Burns
… systems that require expertise from multiple domains in their design, implementation, and validation. One … as the High Level Architecture (HLA) have been developed in part to simplify the co-simulation development process. … or simulator. The U.S. National Institute of Standards and Technology (NIST) has released a software platform called the …

Manipulation of Coupling and Magnon Transport in Magnetic Metal-Insulator Hybrid Structures

June 15, 2020
Author(s)
Yabin Fan, Patrick Quarterman, Joseph Finley, Jiahao Han, Pengxiang Zhang, Justin T. Hou, Mark D. Stiles, Alexander Grutter, Luqiao Liu
… control of magnon current and the compatibility with Si technology, the Pt/YIG/Py hybrid structure could potentially find applications in magnon-based logic and memory devices. … Manipulation of Coupling and Magnon Transport in Magnetic Metal-Insulator Hybrid Structures …

An Effective and Efficient Dynamic eMBMS Multicast Grouping Scheduling Algorithm in MBSFNs for Public Safety Scenarios

June 5, 2020
Author(s)
Siyuan Feng, Chunmei Liu, Chen Shen, HYEONG-AH Choi, Richard A. Rouil
… eMBMS (evolved Multimedia Broadcast Multicast Service) technology employed in MBSFNs (Multicast Broadcast Single Frequency Networks) has … limitations, more fine-tuned scheduling approach is needed in order to fully utilize the strengths of eMBMS multicast. … Dynamic eMBMS Multicast Grouping Scheduling Algorithm in MBSFNs for Public Safety Scenarios …

The Statistics of Computer Clocks and the Design of Synchronization Algorithms

February 25, 2020
Author(s)
Judah Levine
… In this study, I used standard statistical tools (such as the … the two-sample Allan variance) to characterize the clocks in computers, and I show how the results of this study are … operated by the National Institute of Standards and Technology (NIST), and I illustrate the performance of the …

Analysis of potential energy savings from air sealing retrofits of commercial buildings

October 17, 2019
Author(s)
Steven Emmerich, Lisa Ng
… The National Institute of Standards and Technology (NIST) has previously demonstrated that, despite … envelopes are not particularly airtight, resulting in significant energy costs. It has also been demonstrated … through the installation of an effective air barrier in new commercial buildings. That work contributed to the …

Using Structural Phase Transitions to Enhance the Coercivity of Ferromagnetic Films

October 17, 2019
Author(s)
Ryan F Need, Josh Lauzier, Logan Sutton, Brian J Kirby, Jose de la Venta
… Storing information in magnetic recording technologies requires careful … we describe a mechanism for creating dramatic changes in the coercivity of ferromagnetic films over small … with large volume change. The method is demonstrated in Ni/FeRh bilayers where the Ni layer was deposited by 300 K …

Identification and Plasma Diagnostics Study of Extreme Ultraviolet Transitions in Highly Charged Yttrium

September 18, 2019
Author(s)
Roshani Silwal, Endre Takacs, Joan M. Dreiling, John D. Gillaspy, Yuri Ralchenko
… ions of highly charged yttrium Y26+ - Y36+ were observed in the electron beam ion trap of the National Institute of Standards and Technology using a flat-field grazing-incidence spectrometer in the wavelength range of 4 nm to 20 nm. The electron beam … Diagnostics Study of Extreme Ultraviolet Transitions in Highly Charged Yttrium …

Monte Carlo Sampling Bias in the Microwave Uncertainty Framework

June 27, 2019
Author(s)
Michael R. Frey, Benjamin Jamroz, Amanda Koepke, Jake Rezac, Dylan Williams
… Division of the U.S. National Institute of Standards and Technology. The general purpose of the MUF is to provide … on a Monte Carlo (MC) basis. Combine is a key module in the MUF, responsible for merging data, raw or transformed, to accurately reflect the variability in the data and in its central tendency. In this work the …

Single-Molecule 3D Imaging of "Hole-Hole" IgG1 Homodimers by Individual-Particle Electron Tomography

June 20, 2019
Author(s)
Dongsheng Lei, Jianfang Liu, Hongbin Liu, Thomas Cleveland, John Marino, Ming Lei, Gang Ren
… bispecific antibody using the knob- into-hole heterodimer technology. A total of sixty-four IPET 3D density maps at 15 … individual molecules, revealing 64 unique conformations. In addition to the known Y-shaped conformation, we also … details of the interaction between two heavy chains in the Fc domain. The IPET approach, as an orthogonal …

Flood Performance and Dislocation Assessment for Lumberton Homes after Hurricane Matthew

May 26, 2019
Author(s)
Derya Deniz, Elaina Sutley, John W. van de Lindt, Walter G. Peacock, Nathanael Rosenheim, Donghwan Gu, Judith Mitrani-Reiser, Maria Dillard, Maria Koliou, Sara Hamideh
… In order to better understand community resilience following … Planning and the National Institute of Standards and Technology (NIST) jointly conducted a series of longitudinal field studies in the U.S. city of Lumberton, North Carolina following major … Conference on Applications of Statistics and Probability in Civil Engineering (ICASP13) …

Case Study - Exploring Children's Password Knowledge and Practices

February 23, 2019
Author(s)
Yee-Yin Choong, Mary Theofanos, Karen Renaud, Suzanne Prior
… Children use technology from a very young age, and often have to … we designed and administered a survey to school children in the United States (US), so as to gain insights into their … effort). The findings highlight age-related differences in children's password understanding and practices. We also …

Progress Towards Standards for Quantitative MRI (qMRI) and Outstanding Needs

January 24, 2019
Author(s)
Kathryn E. Keenan, Joshua R. Biller, Michael A. Boss, Adele P. Peskin, Karl F. Stupic, Stephen E. Russek, Jana Delfino, Mark Does, Jeffrey L. Evelhoch, Mark Griswold, Jeffrey Gunter, R Scott Hinks, Stuart Hoffman, Geena Kim, Riccardo Lattanzi, Xiaojuan Li, Luca Marinelli, Pratik Mukherjee, Robert J. Nordstrom, Elena Perez, Berkman Sahiner, Natalie J. Serkova, Amita Shukla-Dave, Michael Steckner, Lisa J. Wilmes, Holden Wu, Huiming Zhang, Edward F. Jackson, Daniel Sullivan
… The National Institute of Standards and Technology (NIST) MRI Standards project held a one-day workshop on August 4, 2017 on campus in Boulder, CO. The goal of the workshop was to evaluate the advances in quantitative MRI (qMRI) since the last NIST workshop in …

Millimeter-Wave Channel Measurement and Modeling: A NIST Perspective

December 7, 2018
Author(s)
Camillo A. Gentile, Peter B. Papazian, Nada T. Golmie, Catherine A. Remley, Peter G. Vouras, Jelena Senic, Jian Wang, Jack Chuang, Ruoyu Sun
… The exponential increase in wireless data transmission from smartphones has led to the … model properties. The National Institute of Standards and Technology (NIST) is on the forefront of defining the change. In this paper, we provide an overview of mmWave channel …

Breaking the energy-symmetry-based propagation growth blockade in magneto-optical rotation

December 6, 2018
Author(s)
Chengjie Zhu, Feng Zhou, Eric Y. Zhu, Edward W. Hagley, Lu Deng
… polarization rotation effect has prolific applications in various research areas spanning the scientific spectrum including space and interstellar research, nano- technology and material science, biomedical imaging, and sub-atomic particle research. In nonlinear magneto-optical rotation (NMOR), the intensity …

Low-Temperature Detectors for CMB Imaging Arrays

August 3, 2018
Author(s)
Johannes Hubmayr, Jason E. Austermann, James A. Beall, Daniel T. Becker, Bradley J. Dober, Shannon M. Duff, Jiansong Gao, Gene C. Hilton, Christopher M. McKenney, Joel N. Ullom, Jeffrey L. Van Lanen, Michael R. Vissers
… We review advances in low-temperature detector (LTD) arrays for cosmic microwave … frequency-independent angular responses. Although existing technology lacks all of this capability, today's CMB imaging … formation, polarization diplexing, passband definition in multiple frequency channels, and bolometric sensing. …

Phase Field Benchmark Problems for Dendritic Growth and Linear Elasticity

June 15, 2018
Author(s)
Andrea Jokisaari, P W. Voorhees, Jonathan E. Guyer, James A. Warren, O. G. Heinonen
… (CHiMaD) and the National Insti- tute of Standards and Technology (NIST) along with input from other members in the phase field community. As the integrated computational … benchmark problem for solidification and dendritic growth in a single- component system, and one problem for linear …

Single self-assembled InAs/GaAs quantum dots in photonic nanostructures: the role of nanofabrication

June 13, 2018
Author(s)
Jin Liu, Kumarasiri Konthasinghe, Marcelo I. Davanco, John Lawall, Vikas Anant, Varun Verma, Richard Mirin, Jin Dong Song, Ben Ma, Ze Sheng Chen, Hai Qiao Ni, Zhi Chuan Niu, Kartik Srinivasan
… InAs/GaAs quantum dots are a promising solid-state quantum technology, with vacuum Rabi splitting, single-photon-level … single-photon generation having been demonstrated. In such applications, nanofabrication is used to create structures in which the quantum dot preferentially interacts with …
Displaying 12026 - 12050 of 13225
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