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Search Publications

NIST Authors in Bold

Displaying 5651 - 5675 of 74129

Scaling Relationships for the Elastic Moduli and Viscosity of Mixed Lipid Membranes

September 21, 2020
Author(s)
Elizabeth Kelley, Paul Butler, Rana Ashkar, Robert Bradbury, Michihiro Nagao
The elastic and viscous properties of biological membranes play a vital role in controlling cell functions that require local reorganization of the membrane components as well as dramatic shape changes such as endocytosis, vesicular trafficking, and cell

Time-Resolving Quantum Measurement Enables Energy-Efficient, Large-Alphabet Communication

September 21, 2020
Author(s)
Ivan Burenkov, Jabir Marakkarakath Vadakkepurayil, Abdella Battou, Sergey Polyakov
Information exchange requires a measurement of physical states. Because quantum measurements enable accuracy beyond the classical shot-noise limit, they are successfully used to develop measurement tools and applications. In particular, quantum-measurement

Vulnerability trends in web servers and browsers

September 21, 2020
Author(s)
M S Raunak, D. Richard Kuhn, Richard Kogut, Raghu N. Kacker
In previous work we have looked at trends in vulnerabilities due to ordinary programming errors [2, 3]. This analysis focuses on two of the most widely used types of software in today's internet, web browsers and web servers. In addition to reports of

Probing Pluripotency Gene Regulatory Networks with Live Cell Imaging

September 20, 2020
Author(s)
Anne Plant, Michael Halter, Jeffrey R. Stinson
Live cell imaging uniquely enables the measurement of dynamic events in single cells, but it has not been used often in the study of gene regulatory networks. Network components can be examined in relation to one another by quantitative live cell imaging

Reliable, High-Performance Wireless Systems for Factory Automation

September 17, 2020
Author(s)
Kang B. Lee, Rick Candell, Hans-Peter Bernhard, Dave Cavalcanti, Zhibo Pang, Inaki Val
Wireless has emerged as an enabling technology to improve operational flexibility and efficiency for factory automation. The latest wireless technology, standardization activities, and research issues were explored and discussed through the examination of

Broadband Microwave Signal Dissipation in Nanostructured Copper Oxide at Air/Film Interface

September 17, 2020
Author(s)
Yaw S. Obeng, Papa K. Amoah, Christopher E. Sunday, Jesus Perez, Uros Cvelbar, Martin Kosicek
Contactless broadband microwave spectroscopic technique (a.k.a., broadband dielectric spectroscopy (BDS)) enables the accurate operando analysis of the electrical and magnetic properties applying without compromising the kinetic conditions of the

Enhanced transport of spin-orbit coupled Bose gases in disordered potentials

September 17, 2020
Author(s)
Yuchen Yue, Ian Spielman, Carlos S? de Melo
Anderson localization is single particle localization phenomena in disordered media that is accompanied by an absence of diffusion. Spin-orbit coupling (SOC) describes an interaction between a particle's spin and its momentum that directly affects its

Internet of Things (IoT) Component Capability Model for Research Testbed

September 17, 2020
Author(s)
Eric D. Simmon
Internet of Things (IoT) is the product of the worlds of information technology (IT) and operational technology (OT)converging. IoT combines the ability to observe the physical world with distributed computing systems that can combine and analyze the

Towards Usable Updates for Smart Home Devices

September 17, 2020
Author(s)
Julie M. Haney, Susanne M. Furman
Smart home device updates are important tools for users to remediate security vulnerabilities and protect devices from future attacks. However, no prior research has been conducted to understand smart home users' perceptions of and experiences with updates

Cryptanalysis of LEDAcrypt

September 16, 2020
Author(s)
Daniel C. Apon, Ray A. Perlner, Angela Y. Robinson, Paulo Santini
We report on the concrete cryptanalysis of LEDAcrypt, a 2nd Round candidate in NIST's Post- Quantum Cryptography standardization process and one of 17 encryption schemes that remain as candidates for near-term standardization. LEDAcrypt consists of a

Expanding NIST’s Calibration of Fluorescent Microspheres for Flow Cytometry to More Fluorescence Channels and Smaller Particles

September 16, 2020
Author(s)
Paul C. DeRose, Linhua Tian, Elzafir B. Elsheikh, Aaron A. Urbas, Yu-Zhong Zhang, Lili Wang
NIST, NIH and other industry stakeholders have been working together to enable fluorescence intensities of flow cytometer calibration beads to be assigned quantitative “ERF” values with high accuracy and precision. The ultimate goal of this effort is to

Microwaves and Microscopy (Guest Editorial)

September 16, 2020
Author(s)
Thomas M. Wallis, Marco Farina
Welcome to this special issue of IEEE Microwave Magazine, which is focused on the topic of “Microwaves and Microscopy.” As that title implies, this topic lies at the intersection of two technical disciplines, namely microwave engineering and measurements

NIST Interactions: Fiscal Year 2015 through Fiscal Year 2018

September 16, 2020
Author(s)
Nicole K. Gingrich, Isaac Patterson, Jimmy Nazario-Negron, Michael J. Hall
This study analyzes data from fiscal years 2015 through 2018 of eighteen interaction types in which NIST participates annually. To describe the volume of direct relationships NIST has with the U.S. economy, it calculates the average number of interactions

NIST/NIH Vitamin D Metabolites Quality Assurance Program (VitDQAP): Final Report

September 16, 2020
Author(s)
Katrice A. Lippa, Mary Bedner, Susan Tai, Carolyn Q. Burdette
The National Institute of Standards and Technology (NIST) established a Vitamin D Metabolites Quality Assurance Program (VitDQAP) in collaboration with the National Institutes of Health Office of Dietary Supplements (NIH-ODS) in 2009. The VitDQAP at NIST

Characterization of 3-Dimensional Printing and Casting Materials for use in Computed Tomography and X-ray Imaging Phantoms

September 15, 2020
Author(s)
Bryan E. Yunker, Andrew Holmgren, Karl Stupic, J. L. Wagner, S Huddle, R Shandas, R. F. Weir, Katy Keenan, Edward Garboczi, Stephen E. Russek
Imaging phantoms are used to calibrate and validate the performance of medical computed tomography (CT) systems. Many new materials developed for three-dimensional (3D) printing processes may be useful in the direct printing or casting of biomimetic and

Characterization of 3-Dimensional Printing and Casting Materials for use in Magnetic Resonance Imaging Phantoms at 3 T

September 15, 2020
Author(s)
Bryan E. Yunker, Karl Stupic, J. L. Wagner, S Huddle, R Shandas, R. F. Weir, Stephen E. Russek, Katy Keenan
Imaging phantoms are used to calibrate and validate the performance of magnetic resonance imaging (MRI) systems. Many new materials have been developed for additive manufacturing (three-dimensional [3D] printing) processes that may be useful in the direct

Correlating Inter-Particle Forces and Particle Shape to Shear-Induced Aggregation/Fragmentation and Rheology for Dilute Anisotropic Particle Suspensions: A Complementary Study via Capillary Rheometry and in situ small and Ultra-Small Angle X-ray Scatterin

September 15, 2020
Author(s)
Anthony J. Krzysko, Elias Nakouzi, Xin Zhang, Trent R. Graham, Kevin M. Rosso, Gregory K. Schenter, Jan Ilavsky, Ivan Kuzmenko, Matthew G. Frith, Cornelius F. Ivory, Sue B. Clark, Javen S. Weston, Kathleen Weigandt, James J. De Yoreo, Jaehun Chun, Lawrence M. Anovitz
Predicting the stability of suspensions composed of anisotropic particles is difficult due to the complexity and interplay of hydrodynamic and colloidal forces. For example, it is not well understood how non-spherical particle shapes affect suspension

Electron and x-ray focused beam-induced cross-linking in liquids: Toward rapid continuous 3D nanoprinting and interfacing using soft materials

September 15, 2020
Author(s)
Tanya Gupta, Evgheni Strelcov, Glenn Holland, Joshua D. Schumacher, Yang Yang, Mandy Esch, Vladimir Aksyuk, Patrick Zeller, Matteo Amati, Luca Gregoratti, Andrei Kolmakov
Additive fabrication of biocompatible 3D structures out of liquid hydrogel solutions has become pivotal technology for tissue engineering, soft robotics, biosensing, drug delivery etc. Electron and X-ray lithography are well suited to pattern nanoscopic

Evaluating the Operational Impact of Contactless Fingerprint Imagery on Matcher Performance

September 15, 2020
Author(s)
Shahram Orandi, John M. Libert, Bruce Bandini, Kenneth Ko, John D. Grantham, Craig I. Watson
This study set out to examine the operational impact of introducing contactless fingerprint imagery to a modern fingerprint matching system that was designed for touch-collected images in either a standard Ten-Print operational matching pathway or a Mobile
Displaying 5651 - 5675 of 74129