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Search Publications

NIST Authors in Bold

Displaying 12601 - 12625 of 13226

System-Level Thermal-Hydraulics Analysis of the Proposed NIST Neutron Source Design

August 24, 2024
Author(s)
Anil Gurgen, Abdullah Weiss
… The National Institute of Standards and Technology (NIST) is considering replacing its existing … test reactor, the NIST Neutron Source (NNS), is currently in the conceptualization phase. The current design of the NNS … provide the thermal and hydraulic behavior of the coolant in the system and throughout the core. The goal is to …

Bugs Framework (BF): Formalizing Cybersecurity Weaknesses and Vulnerabilities

July 30, 2024
Author(s)
Irena Bojanova
… the Bugs Framework (BF). Further details will be available in NIST SP xxx-xxxA-I at … researchers, software and hardware developers, information technology (IT) managers, and IT executives. To our knowledge, the ideas, approach, and methodologies in which the BF formal language, models, tools, and datasets …

Soft Matter Roadmap

December 12, 2023
Author(s)
Jean-Louis Barrat, Emanuela Del Gado, Stefan Egelhaaf, Xiaoming Mao, Marjolein Dijkstra, David Pine, Sanat Kumar, Kyle Bishop, Oleg Gang, Allie Obermeyer, Christine Papadakis, Constantinos Tsitsilianis, Ivan Smalyukh, Aurelie Hourlier-Fargette, Sebastien Andrieux, Wiebke Drenckhan, Norman J. Wagner, Ryan Murphy, Eric Weeks, Yilong Han, Luca Cipelletti, Laurence Ramos, Wilson Poon, James Richards, Itai Cohen, Eric Furst, Alshakim Nelson, Stephen Craig, Rajesh Ganapathy, Ajay Sood, Francesco Sciortino, Muhittin Mungan, Srikanth Sastry, Colin Scheibner, Michel Fruchart, Vincenzo Vitelli, S. Ridout, M. Stern, I. Tah, G. Zhang, Andrea Liu, Chinedum Osuji, Yuan Xu, Heather Shewan, Jason Stokes, Matthias Merkel, Pierre Ronceray, Jean-Francois Rupprecht, Olga Matsarskaia, Frank Schreiber, Felix Rossen-Runge, Marie-Eve Aubin-Tam, G. Koenderink, Rosa Espinosa-Marzal, Joaquin Yus, Jiheon Kwon
… liquid crystals, foams. The importance of soft materials in everyday commodity products, as well as in technological applications, is enormous, and controlling … perturbations, gives rise to an almost unlimited variety in physical properties. Together with the relative ease to …

Generation of Firebrands from the Burning of Full-Scale Vegetation in the Absence of Ambient Wind

October 22, 2023
Author(s)
Isaac Leventon, Mahdi Tlemsani, Mohammadhadi Hajilou, Xiaoyu Ju, Michael Gollner
… were conducted at the University of Maryland (UMD) in collaboration with the National Institute of Standards and Technology (NIST) to measure variations in burning behavior and firebrand yield (i.e., mass of … of Firebrands from the Burning of Full-Scale Vegetation in the Absence of Ambient Wind …

Cryogenic reconfigurable logic with superconducting heater cryotron: Enhancing area efficiency and enabling camouflaged processors

October 10, 2023
Author(s)
Shamiul Alam, Dana Rampini, Bakhrom Oripov, Adam McCaughan, Ahmedullah Aziz
… among the most promising alternatives to conventional CMOS technology, thanks to the ultra-fast speed and ultra-high … flux trapping leading to limited scalability, difficulty in driving high impedances, and so on. Three-terminal … (⁠ > 100 kΩ⁠) and are free from any flux trapping issue. In this work, we develop a reconfigurable logic circuit using …

Use of non-targeted and suspect screening analysis to detect sources of human exposure to environmental contaminants

June 28, 2023
Author(s)
Katherine Manz, Anna Feerick, Joseph Braun, Yong-Lai Feng, Amber Hall, Jeremy Koelmel, Carlos A. Manzano, Seth Newton, Kurt Pennell, Benjamin Place, Krystal Godri Pollitt, Carsten Prasse, Joshua Young
… to detect and identify unknown or suspected compounds in environmental media and human biospecimen. As such, we … a review to examine the use of different NTA/SSA methods in exposure media and human samples, the results of these … used GC-HRMS (32%). Finally, we identify knowledge and technology gaps to fully address potential contaminant …

Procedure Overhaul at the NIST Center for Neutron Research

June 19, 2023
Author(s)
Brandy Frie, David Griffin, James R. Whipple
… The National Institute of Standards and Technology (NIST) Center for Neutron Research operates a 20 … element was unlatched, causing an accident that resulted in a multi-year cease in operations of the reactor. One of the root causes of the …

U.S. population data for 94 identity informative SNP loci

May 15, 2023
Author(s)
Kevin Kiesler, Lisa Borsuk, Becky Steffen, Peter Vallone, Katherine Gettings
… The U.S. National Institute of Standards and Technology analyzed a set of 1036 samples representing four … primer mix B (DPMB) on the MiSeq FGx Sequencing System. In addition to the previously reported STR markers, DPMB … n = 56), and phenotype prediction (piSNPs, n = 22). In this report, resulting sequencing coverage information was …

Thermal environment impact on HfOx RRAM operation: A nanoscale thermometry and modeling study

May 8, 2023
Author(s)
Matthew West, Georges Pavlidis, Robert Montgomery, Fabia Farlin Athena, Muhammad Jamil, Andrea Centrone, Samuel Graham, Eric Vogel
… large datasets increases, there is a growing need for new in-memory computing technologies that avoid the von Neumann … however, suffer from poor linearity and from asymmetry in their analog resistance change. Various reports have found that the temperature in RRAM devices can increase locally by more than 1000 K …

Noncryogenic Air Separation using Aluminum Formate Al(HCOO) 3 (ALF)

May 3, 2023
Author(s)
Dinesh Mullangi, Hayden Evans, Taner N. Yildirim, Yuxiang Wang, Zeyu Deng, Zhaoqiang Zhang, Thuc Mai, Fengxia Wei, John Wang, Angela R. Hight Walker, Craig Brown, Dan Zhao, Pieremanuele Canepa, Anthony K. Cheetham
… gas streams is a process that is significant in both industrial and medical fields. However, the prominent … and excellent time-dependent O 2 /N 2 selectivity in the range of 50 – 125 near dry ice/solvent (≈ 190 K) … ALF at ≈ 190 K and ≈ 0.21 bar (the partial pressure of O 2 in air) is ≈ 1.7 mmol/g, and at ice/salt temperatures (≈ 250 …

Polyethyleneimine/polyethylene glycol-conjugated gold nanoparticles as nanoscale positive/negative controls in nanotoxicology: Testing in frog embryo teratogenesis assay-Xenopus and mammalian tissue culture system

March 15, 2023
Author(s)
Vytas Reipa, Alessandro Tona, Feng Yi, Bryant C. Nelson, David A. LaVan, Vincent A. Hackley, Tae Joon Cho
… of using positively charged gold nanoparticles (AuNPs) in nanomedicine, no systematic studies have been reported on … until a group at the National Institute of Standards and Technology recently succeeded in producing remarkably stable polyethyleneimine (PEI)-coated …

Highly-twisted states of light from a high quality factor photonic crystal ring

February 27, 2023
Author(s)
Xiyuan Lu, Mingkang Wang, Feng Zhou, Mikkel Heuck, Wenqi Zhu, Vladimir Aksyuk, Dirk Englund, Kartik Srinivasan
… (OAM) has been extensively studied for applications in quantum and classical communications, microscopy, and … been lacking. This is crucial given the importance of $Q$ in enhancing light-matter interactions, such as single … are often desirable, the limits on what is achievable in a microresonator configuration are not well understood. …

Development of an Improved Standard Reference Material for Folate Vitamers in Human Serum

December 12, 2022
Author(s)
Johanna Camara, Jeanita Pritchett, Yasmine Daniels, Mary Bedner, Michael Nelson, Mark Lowenthal, Zia Fazili, Christine Pfeiffer, Karen W. Phinney, Katherine E. Sharpless, Lane C. Sander, Katrice Lippa, James H. Yen, Adam Kuszak, Stephen Wise
… The US National Institute of Standards and Technology (NIST) developed a Standard Reference Material® (SRM®) 3949 Folate Vitamers in Frozen Human Serum to replace SRM 1955 Homocysteine and Folate in Human Serum. The presence of increased endogenous levels … Improved Standard Reference Material for Folate Vitamers in Human Serum …

Chemically Induced Magnetic Dead Shells in Superparamagnetic Ni Nanoparticles Deduced from Polarized Small-Angle Neutron Scattering

July 17, 2022
Author(s)
Bhaskar Das, Joseph Batley, Kathryn L. Krycka, Julie A. Borchers, Patrick Quarterman, Caroline Korostynski, My Nguyen, Ishita Kamboj, Eray Aydil, Chris Leighton
… Advances in synthesis and characterization of colloidal magnetic nanoparticles (NPs) have yielded great gains in the understanding of their complex magnetic behavior, with … derived from the trioctylphosphine commonly used in hot-injection NP syntheses. The phosphide shell thickness …

In-situ studies of the swelling by electrolyte in the electrochemical doping of an ethylene glycol substituted polythiophene

June 13, 2022
Author(s)
Lee J. Richter, Lucas Flagg, Lauren Asselta, Nicholas D'Antona, Natalie Stingelin, Tommaso Nicolini, Jonathan Onorato, Christine Luscombe, Ruipeng Li
… computing platforms. However, study of these materials in their operating state, which convolves both passive and … extremely difficult, inhibiting rational materials design. In this report, we present a novel approach to the in-situ study, via grazing-incidence X-Ray scattering, of the …

Multi-User MIMO Enabled Virtual Reality in IEEE 802.11ay WLAN

May 16, 2022
Author(s)
Jiayi Zhang, Steve Blandino, Neeraj Varshney, Jian Wang, Camillo Gentile, Nada T. Golmie
… Virtual reality (VR) coupled with 360° video has been used in a variety of areas, including gaming, remote learning, and … applications are based today is mostly low resolution and, in order to improve the user experience, bandwidth … (SM) at millimeter wave (mmWave) is an enabling technology introduced in IEEE 802.11ay to support high …

Evaluate Peak Usage Reduction of a Multi-round Real-time Pricing Model Using Co-simulation

May 9, 2022
Author(s)
Chenli Wang, Thomas Roth, Cuong Nguyen
… assess the peak-shaving impact of a dynamic pricing scheme in a Transactive Energy (TE) grid.This work devised a … based on HVAC setpoint and environment conditions. In addition, a utility simulator was also devised to publish … developed from the National Institute of Standards and Technology (NIST). The energy profiles and cost for utility …

Entanglement Thresholds of Doubly Parametric Quantum Transducers

April 29, 2022
Author(s)
Curtis Rau, Akira Kyle, Alexander T. Kwiatkowski, Ezad Shojaee, John Teufel, Konrad Lehnert, Tasshi Dennis
… the critical link between quantum information encoded in highly disparate frequencies such as in the optical and microwave domains. This technology would enable long-distance networking of …

Controlling Magnetic Configuration in Soft-Hard Bilayers Probed by Polarized Neutron Reflectometry

January 13, 2022
Author(s)
Nan Tang, Jung-Wei Liao, Kai Liu, Siu-Tat Chui, Timothy Ziman, Alexander Grutter
… Hard/soft magnetic bilayer thin films have been widely used in data storage technologies and permanent magnet … and response to temperatures and magnetic fields in these composite systems are considered to be highly … provides an effective method to design the magnetism in composite magnets. Here, we use polarized neutron …

Incandescent lamp-based facility for measuring the long-term radiometric stability of spectrographs

December 10, 2021
Author(s)
Ping-Shine Shaw, John T. Woodward IV, B. Carol Johnson, Steven Brown, Howard W. Yoon
… the stability of a spectrograph is a primary factor in the overall measurement uncertainty and therefore is the … standard lamps of the National Institute of Standards and Technology (NIST) as light sources. To ensure highest … than 0.02%. The spectrographs tested show good stability in general ranging from 0.02% to 0.1% with no discernable …

Development of NbN THz HEB Mixer Devices and Films

October 12, 2021
Author(s)
Eyal Gerecht, V. A. Bhupathiraju, John Nicholson, Dazhen Gu, Yan Zhuang, Fernando R. Morales, Xin Zhao, Ric Zannoni, Sigfrid Yngvesson
… PHEB research groups across the world have been produced in Moscow(MSPU). We have developed a process for fabricating … thin NbN films at the National Institute of Standards and Technology (NIST) in Boulder, CO. A two-fold approach has been taken. The first …

Standard Reference Photometer for the Assay of Ozone in Calibration Atmospheres

October 12, 2021
Author(s)
R J. Paur, A M. Bass, James E. Norris, T J. Buckley
… instrument for the assay of ozone from 0 ppbv to 1000 ppbv in calibration atmospheres as been designed, constructed, and … for an instrument with a standard uncertainty of 2 ppbv in the range of 1 ppbv to 100 ppbv and + 2 % in the range of … are maintained at the National Institute of Standards and Technology (NIST), one serving as NIST's principal ozone …
Displaying 12601 - 12625 of 13226
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