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NIST Authors in Bold

Displaying 4476 - 4500 of 74345

Quantifying Mechanical Abrasion of MWCNT Nanocomposites used in 3D Printing: Influence of CNT content on abrasion products and rate of microplastic production

July 15, 2021
Author(s)
Nathan Bossa, Sipe M. Joana, Alan Kennedy, Treye Thomas, Christine O. Hendren, Mark R. Wiesner, Keana Scott, William Berger
Manufactured nanomaterials (MNMs) are incorporated as "nanofillers" into consumer products to enhance properties of interest. Multiwalled carbon nanotubes (MWCNTs) are known for their unique properties and have many applications in polymers. However, the

Supersonic Impact Response of Polymer Thin Films via Large-Scale Atomistic Simulations

July 15, 2021
Author(s)
Andrew L. Bowman, Edwin P. Chan, William B. Lawrimore, John K. Newman
Recent nanoscale ballistic testing studies have shown the applicability of nanomaterials for ballistic protection but have raised new questions regarding the nanoscale structure-property relationships that contribute to the enhanced ballistic response of

Aerial LTE Demonstration Report

July 14, 2021
Author(s)
Maxwell Maurice, Sam Ray
In this paper, we investigate a Long Term Evolution (LTE) network mounted on an airborne small unmanned aircraft system (sUAS) to provide broadband connectivity to smartphone devices on the ground. The use case is a public safety scenario where users

Density Functional Theory Study of the Structure of the Pillared Hofmann compound Ni(3-Methy-4,4'-bipyridine)[Ni(CN)4] (Ni-BpyMe or PICNIC 21)

July 14, 2021
Author(s)
Eric J. Cockayne, Winnie Wong-Ng, Yu-Sheng Chen, Jeffrey T. Culp, Andrew J. Allen
We use dispersion-corrected density functional theory (DFT) to investigate the structure of the pillared Hofmann compound Ni(3-Methy-4,4'-bipyridine)[Ni(CN)4] (NiBpyMe for short, or PICNIC 21). We model the disorder found in experimental X-ray structure

NIST Fingerprint Image Quality 2

July 13, 2021
Author(s)
Elham Tabassi, Martin Olsen, Oliver Bausinger, Christoph Busch, Andrew Figlarz, Gregory Fiumara, Olaf Henniger, Johannes Merkle, Timo Ruhland, Christopher Schiel, Michael Schwaiger
NIST Fingerprint Image Quality (NFIQ 2) is open source software that links image quality of optical and ink 500 pixel per inch fingerprints to operational recognition performance. This allows quality values to be tightly defined and then numerically

Performance and Failure Mechanism of Fire Barriers in Full-Scale Chair Mock-ups

July 13, 2021
Author(s)
Andre Thompson, Ickchan Kim, Anthony Hamins, Matthew Bundy, Mauro Zammarano
The effectiveness and the failure mechanism of fire barriers in residential upholstered furniture were investigated by full-scale flaming tests on upholstered chair mock-ups. Six commercial fire barriers were tested in this study. Fire barriers were

The role of orientation in the MEL response of OLEDs

July 13, 2021
Author(s)
Sebastian Engmann, Emily Bittle, Lee J. Richter, Rawad Hallani, John Anthony, David J. Gundlach
Magneto electroluminescence (MEL) is emerging as a powerful tool for the study of spin dynamics in emitting devices. The shape of the MEL response is typically used to draw qualitative inference on the dominant process (singlet fission or triplet fusion)

NIST 2021 Speaker Recognition Evaluation Plan

July 12, 2021
Author(s)
Omid Sadjadi, Craig Greenberg, Elliot Singer, Lisa Mason, Douglas Reynolds
The 2021 Speaker Recognition Evaluation (SRE21) is the next in an ongoing series of speaker recognition evaluations conducted by the US National Institute of Standards and Technology (NIST) since 1996. The objectives of the evaluation series are (1) to

Polymorphism of Calcium Decahydrido-closo-decaborate and Characterization of Its Hydrates

July 12, 2021
Author(s)
Mathias Jorgensen, Wei Zhou, Hui Wu, Terrence J. Udovic, Mark Paskevicius, Radovan Cerny, Torben R. Jensen
Metal closo-borates and their derivatives have shown promise in several fields of application from cancer therapy to solid-state electrolytes partly owing to their stability in aqueous solutions and high thermal stability. We report the synthesis and

Advancing the Accuracy of Computational Models for Double-sided Incremental Forming

July 11, 2021
Author(s)
Newell Moser, Dohyun Leem, Liao Shuheng, Kornel Ehmann, Jian Cao
Double-Sided Incremental Forming (DSIF) is a rapid-prototyping manufacturing process for metal forming that, for low-volume production, is competitively energy-efficient. However, controlling the DSIF process in terms of accuracy and formability is an

On the Quality of the TREC_COVID IR Test Collections

July 11, 2021
Author(s)
Ellen M. Voorhees, Kirk Roberts
Shared text collections continue to be vital infrastructure for IR research. The COVID-19 pandemic offered an opportunity to create a test collection that captured the rapidly changing information space during a pandemic, and the TREC-COVID effort was

Reference standards for accurate validation and optimization of assays that determine integrated Lentiviral vector copy number in transduced cells

July 11, 2021
Author(s)
Barbara S. Paugh, Lajos Baranyi, Andre Roy, Hua-Jun He, Lindsay Harris, Kenneth D. Cole, Caroline Raimund, Patricia S. Langan, Moria Artlip, Srikanta Jana, Rimas J. Orentas, Sheng Lin-Gibson, Winfried Krueger, Boro Dropuli?
Lentiviral vectors (LV) have emerged as a robust technology for therapeutic gene delivery into human cells as advanced medicinal products. As these products are increasingly commercialized, there are concomitant demands for their characterization to ensure

TREC Deep Learning Track: Reusable Test Collections in the Large Data Regime

July 11, 2021
Author(s)
Ellen M. Voorhees, Ian Soboroff, Nick Craswell, Bhaskar Mitra, Emine Yilmaz, Daniel Campos
The TREC Deep Learning (DL) Track studies ad hoc search in the large data regime, meaning that a large set of human-labeled training data is available. Results so far indicate that the best models with large data are likely deep neural networks. This paper

Agility Metrics in the ARIAC Competition

July 10, 2021
Author(s)
Anthony Downs, Zeid Kootbally, Craig I. Schlenoff
A thriving manufacturing sector is the essential heart of a vibrant and balanced economy in the United States(U.S.). Small and medium manufacturers (SMMs) constitute an important sector in the U.S. manufacturing but they are currently facing an increasing

Using fine sand shape metrics determined from X-ray microcomputed tomography to illustrate the influence of particle shape on the properties of dispersed mortars

July 10, 2021
Author(s)
Edward Garboczi, Jeffrey W. Bullard, Olafur Wallevik, Pierre Estephane
This study follows a first paper written on some three-dimensional geometrical quantities of a selection of sand particles from the United Arab Emirates (UAE), determined using a combination of X-ray microcomputed tomography (µCT) and spherical harmonic

Acoustic measurement of the triple point of neon TNe and thermodynamic calibration of a transfer standard for accurate cryogenic thermometry

July 9, 2021
Author(s)
Changzhao Pan, Fernando Sparasci, Haiyang Zhang, Pascal Gambette, Mark Plimmer, Dario Imbraguglio, Roberto M. Gavioso, Michael R. Moldover, Bo Gao, Laurent Pitre
We used absolute primary acoustic gas thermometry (AGT) to calibrate a Pt-Co resistance thermometer on the thermodynamic temperature scale by measuring the speed of sound in helium at a temperature T* chosen to be near the temperature of the triple point

Framework da Forca de Trabalho para Seguranca Cibernetica (NICE Framework)

July 9, 2021
Author(s)
Rodney Petersen, Danielle Santos, Karen A. Wetzel, Matthew C. Smith, Greg Witte
A presente publicação da Iniciativa Nacional para Educação em Segurança Cibernética (NICE) descreve o Framework da Força de Trabalho para Segurança Cibernética (NICE Framework), uma importante referência para descrever e compartilhar informações sobre o
Displaying 4476 - 4500 of 74345