U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications

NIST Authors in Bold

Displaying 551 - 575 of 143816

Wound Causing Agents in the Illicit Drug Supply: Evidence from a Statewide Drug Checking Program

December 5, 2024
Author(s)
Emily Martin, Kristin Schneider, Edward Sisco, Meghan Appley, Margaret Rybak, Rae Elkasabany, Susan Sherman
Objectives To examine the prevalence of wound causing agents (xylazine, levamisole, medetomidine) in Maryland's illicit drug supply and co-occurrence with other substances. Methods Using data from Maryland's statewide drug checking program, Rapid Analysis

An Adaptive Metal-Organic Framework Discriminates Xylene Isomers by Shape-Responsive Deformation

December 4, 2024
Author(s)
Jiaqi Li, Bin Sheng, Rundao Chen, Hui Wu, Wei Zhou, Fang Zheng, Baojian Liu, Qiwei Yang, Zhiguo Zhang, Yiwen Yang, Qilong Ren, Zongbi Bao
The separation of xylene isomers, especially para-xylene, is a crucial but challenging process in the chemical industry due to their similar molecular dimensions. Here, a flexible metal–organic framework, Ni(ina)2, (ina = isonicotinic acid) is employed to

Atomistic Origins of Conductance Switching in an e-Cu0.9V2O5 Neuromorphic Single Crystal Oscillator

December 4, 2024
Author(s)
Cherno Jaye, Conan Weiland, Daniel Fischer, John Ponis, Nicholas Jerla, George Agbeworvi, Saul Perez-Beltran, Nitin Kumar, Kenna Ashen, Jialu Li, Edrick Wang, Michelle A. Smeaton, Fatme Jardali, Sarbajeet Chakraborty, Patrick J. Shamberger, Katherine L. Jungjohann, Lu Ma, Jinghua Guo, G Sambandamurthy, Xiaofeng Qian, Sarbajit Banerjee
: Building artificial neurons and synapses is key to achieving the promise of energy efficiency and acceleration envisioned for brain-inspired information processing. Emulating the spiking behavior of biological neurons in physical materials requires

Results of the 2023 Rapid DNA Multi-Laboratory Study - I-Chip

December 4, 2024
Author(s)
Erica Romsos, Lilliana Moreno, Douglas Hares
Identical sensitivity and mixture sample sets were provided to six external laboratories to evaluate the recent enhancements to the Rapid DNA technology for crime scene-type samples. Data were returned to the Federal Bureau of Investigation and the

Two tests of variance homogeneity for clustered data where group size is informative

December 3, 2024
Author(s)
Mary Gregg, Adam Creuziger, Somnath Datta, Douglas Lorenz
To evaluate variance homogeneity among groups for clustered data, Iachine et al. (Robust tests for the equality of variances for clustered data. J Stat Comput Simul 2010;80(4):365–377) introduced an extension of the well-known Levene test. However, this

Detecting Features of Antibody Structure Through Their Mediator-accessible Redox Activities

December 2, 2024
Author(s)
Dana Motabar, Eunkyoung Kim, Jinyang Li, Zhiling Zhao, Catherine Mouchahoir, David Travis Gallagher, John E. Schiel, Mamatha Garige, Carole Sourbier, Gregory F. Payne, William Bentley
Protein function relies on sequence, folding and post-translational modification and molecular measurements are commonly used to reveal these structural features. Here, we report an alternative approach that represents these molecular features as readily

Noiseless Loss Suppression for Entanglement Distribution

December 2, 2024
Author(s)
Cory Nunn, Daniel Jones, Todd Pittman, Brian Kirby
Recent work by Mičuda et al. [Phys. Rev. Lett 109, 180503 (2012)] suggests that pairing noiseless amplification with noiseless attenuation can conditionally suppress loss terms in the direct transmission of quantum states. Here we extend this work to

Optical Characterization of Parasitic Motion in a Long-Stroke Shaker

December 2, 2024
Author(s)
Jared Strait, Richard A. Allen
We present an optical scheme to simultaneously characterize the cross-axis and rotational parasitic motions of a long-stroke shaker. By leveraging the geometric properties of a corner cube retroreflector mounted on the shaker load table, we independently

AutoRefl: Active Learning in Neutron Reflectometry for Fast Data Acquisition

December 1, 2024
Author(s)
David Hoogerheide, Frank N. Heinrich
Neutron reflectometry (NR) is a powerful technique for interrogating the structure of thin films at interfaces. Because NR measurements are slow and instrument availability is limited, measurement efficiency is paramount. One approach to improving

Heterogeneously integrated AlGaAs/GaAs photodiodes on tantala waveguides

December 1, 2024
Author(s)
Masoud Jafari, Tasneem Fatema, David Carlson, Scott Papp, Andreas Beling
We demonstrate the first heterogeneously integrated high-speed waveguide photodiode (PD) on tantalum pentoxide (Ta2O5, or tantala) for visible light detection. The PDs have 100 pA dark current, more than 56% quantum efficiency (QE) between 635 nm and 780

VOC Emission Rates from an Indoor Surface Using a Flux Chamber and PTR-MS

December 1, 2024
Author(s)
Han Huynh, Jenna Ditto, Michael Link, Dustin Poppendieck, Delphine Farmer, Marina Vance, Jonathan Abbatt
Arising from the Chemical Assessment of Surfaces and Air (CASA) 2022 study at the NIST Net-Zero Energy Residential Test Facility (NZERTF), this paper presents the first evaluation of indoor surface emissions to a house measured with a surface flux chamber

TRC/NIST PUBLIC DATA DOMAIN

November 29, 2024
Author(s)
Vladimir Diky
A conference presentation describing the TRC/NIST public data domain.
Displaying 551 - 575 of 143816
Was this page helpful?