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NIST Authors in Bold

Displaying 4251 - 4275 of 143714

Effect of network connectivity on behavior of synthetic Broborg Hillfort glasses

September 2, 2022

Author(s)

Jose Marcial, Maria Cicconi, Carolyn Pearce, Jaroslav Klouzek, James Neeway, Richard Pokorny, Miroslava Vernerova, John McCloy, Emily Nienhuis, Rolf Sjoblom, Jamie Weaver, Russell Hand, Pavel Hrma, Albert Kruger

There is wide industrial interest in developing robust models of long-term (>100years) glass durability. Archeological glass analogs, glasses of similar composition, and alteration conditions to those being tested for durability can be used to evaluate and

Energy Dispersive X-ray Spectrum Simulation with NIST DTSA-II: Comparing Simulated and Measured Electron-Excited Spectra

September 2, 2022

Author(s)

Dale E. Newbury, Nicholas Ritchie

Electron-excited X-ray microanalysis with energy-dispersive spectrometry (EDS) proceeds through the application of the software that extracts characteristic X-ray intensities and performs corrections for the physics of electron and X-ray interactions with

High-speed, 3D volumetric displacement and strain mapping in soft materials using Light Field Microscopy

September 2, 2022

Author(s)

Selda Buyukozturk, Alexander Landauer, Jing Zhang, Luke Summey, Angel Chukwu, Christian Franck

Background: High strain-rate deformations of soft materials have several applications which presents an experimental need to measure at-rate 3D volumetric spatial information. While 2D- and 3D-digital image correlation, digital volume correlation, and

Network analysis approach to Likert-style surveys

September 2, 2022

Author(s)

Robert Dalka, Diana Sachmpazidi, Charles Henderson, Justyna Zwolak

Likert-style surveys are a widely used research instrument to assess respondents' preferences, beliefs, or experiences. In this paper, we propose and demonstrate how network analysis (NA) can be employed to model and evaluate the interconnectedness of

Validation of and Optimization with a Vapor Compression Cycle Model Accounting for Refrigerant Thermodynamic and Transport Properties

September 2, 2022

Author(s)

Harrison M. Skye, Piotr A. Domanski, Riccardo Brignoli, SANGHUN LEE, Heunghee Bae

CYCLE_D-HX is a semi-theoretical model that simulates the performance of a vapor-compression cycle with forced-convection heat exchangers for specified temperature profiles of the heat source and heat sink. In this study, we validated CYCLE_D-HX using

Algorithms and databases: unlocking non-targeted screening of small molecules with ambient ionization mass spectrometry

September 1, 2022

Author(s)

Edward Sisco

Nearly all sectors of analytical chemistry are finding applications for ambient ionization mass spectrometry (AI-MS) due to its ease of use, speed of analysis and sensitivity. While emphasis has been placed on developing new hardware to help analyze unique

Comparative Structural Rigidity Analysis of the NBSR DDE and the NBSR LEU Fuel Element

September 1, 2022

Author(s)

Sameer Jape, Cezary Bojanowski, Guanyi Wang, David Jaluvka, Dagistan Sahin, Walid Mohamed, Erik Wilson

National Bureau of Standards Reactor LEU Fuel Element Flow Test Conceptual Design

September 1, 2022

Author(s)

Cezary Bojanowski, Guanyi Wang, Aaron Weiss, Ronald Kmak, Andrew Hebden, Michael Legatt, Trevor Howard, Wade Marcum, Walid Mohamed, Dagistan Sahin, David Jaluvka, Erik Wilson

Overcoming Technological Barriers in Microfluidics: Leakage Testing

September 1, 2022

Author(s)

Vania Silverio, Suvajyoti Guha, Armelle Keiser, Rucha Natu, Darwin Reyes-Hernandez, Henne van Heeren, Nicolas Verplanck, Luke Herbertson

The miniaturization of laboratory procedures for Lab-on-Chip (LoC) devices and translation to various platforms such as single cell analysis or Organ-on-Chip (OoC) systems are revolutionizing the life sciences and biomedical fields. As a result

The Role of Carbon Dioxide in Ventilation and IAQ Evaluation

September 1, 2022

Author(s)

Andrew K. Persily

Thermal and gas mixture composition measurements preceding backdrafts in a 2/5th scale compartment

September 1, 2022

Author(s)

Ryan Falkenstein-Smith, Thomas Cleary

This report documents real-time and time-averaged temperature, global and local equivalence ratios, and oxygen, carbon dioxide, and carbon monoxide concentration measurements made at various positions in an isolated 2/5th scale compartment prior to a

Visualizing Localized, Radiative Defects in GaAs Solar Cells

September 1, 2022

Author(s)

Behrang Hamadani, Margaret Stevens, Brianna Conrad, Matthew Lumb, Kenneth Schmieder

We have used a calibrated, wide-field hyperspectral imaging instrument to obtain absolute spectrally and spatially resolved photoluminescence images in high growth-rate, rear-junction GaAs solar cells from 300 K to 77 K. At the site of some localized

ALD deposited amorphous alumina coatings can slow glass alteration

August 31, 2022

Author(s)

Miriam Hiebert, Jamie Weaver, Thomas Lam, Nicole Little, Ethan Hyde, Edward Vicenzi, Ray A. Phaneuf

Atomic layer deposited (ALD) amorphous aluminum oxide and titanium oxide coatings have been investigated for use in reducing the rate of silicate glass alteration. Mass spectrometric analysis of leachate from elevated temperature aqueous immersion

Finding the Signal from the Smoke: A Real-Time, Unattended Fire Prevention System Using 3D Convolutional Neural Networks

August 31, 2022

Author(s)

Michael Ngai, Eugene Yujun Fu, Wai Cheong Tam, Grace Ngai, Amber Yang

Cooking fires are dangerous. Every year, they are responsible for taking away more than 500 lives in the U.S. alone. Existing approaches using sensors usually require expensive retrofitting and are not feasible in real-life situations. This research

Guest Editorial Sensing Psychological Parameters and AI-enabled Emotion Care for Human Wellness

August 31, 2022

Author(s)

Min Chen, Hamid Gharavi, LIN WANG, VICTOR.C.M LEUNG, Zhongchun Liu, Iztok Humar

Case studies on AI-aided emotion care and mental disorder patient monitoring can contribute to providing knowledge and research direction for scholars. Well-studied and persuasive case studies help professionals and the public to fully accept changes and

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