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Displaying 4976 - 5000 of 73741

Spin and Charge Interconversion in Dirac-Semimetal Thin Films

November 16, 2021
Author(s)
Wilson Yanez, Yongxi Ou, Run Xiao, Jahyun Koo, Jacob T. Held, Supriya Ghosh, Jeffrey Rable, Timothy Pillsbury, Enrique Gonzalez Delgado, Kezhou Yang, Juan Chamorro, Alexander Grutter, Patrick Quarterman, Anthony Richardella, Abhronil Sengupta, Tyrel M. McQueen, Julie Borchers, K. A. Mkhoyan, Binghai Yan, Nitin Samarth
We report spin-to-charge and charge-to-spin conversion at room temperature in heterostructure devices that interface an archetypal Dirac semimetal, Cd 3As 2, with a metallic ferromagnet,Ni 0.80Fe 0.20 (permalloy). The spin-charge interconversion is

Blood vessel-on-a-chip examines biomechanics of microvasculature

November 15, 2021
Author(s)
Paul Salipante, Steven D. Hudson, Styliani Alimperti
We use a three-dimensional (3D) microvascular platform to measure the elasticity and membrane permeability of the endothelial cell layer. The microfluidic platform is connected with a pneumatic pressure controller to apply hydrostatic pressure. The

Cross-property deep transfer learning framework for enhanced predictive analytics on small materials data

November 15, 2021
Author(s)
Vishu Gupta, Kamal Choudhary, Francesca Tavazza, Carelyn E. Campbell, Wei-Keng Liao, Alok Choudhary, Ankit Agrawal
Artificial Intelligence (AI) and Machine Learning (ML) has been increasingly used in materials science to build property prediction models and accelerate materials discovery. The availability of large materials databases for some properties like formation

Evaluation of a Modified Void Descriptor Function to Uniquely Characterize Pore Networks and Predict Fracture Location in Additively Manufactured Metals

November 15, 2021
Author(s)
Dillon Watring, Jake Benzing, Orion Kafka, Li-Anne Liew, Newell Moser, John Erickson, Nik Hrabe, Ashley Spear
Variations in additive manufacturing (AM) processing parameters can lead to variations in porosity, making it challenging to predict pore- or void-sensitive mechanical response in AM metals. A recently developed pore metric, the void descriptor function

Iridate Li 8 IrO 6 : An Antiferromagnetic Insulator

November 15, 2021
Author(s)
Callista M. Skaggs, Peter E. Siegfried, Chang-Jong Kang, Craig Brown, Fu Chen, Lu Ma, Steven N. Ehrlich, Yan Xin, Mark Croft, Wenqian Xu, Saul H. Lapidus, Nirmal J. Ghimire, Xiaoyan Tan
A poltcrystalline iridate, Li 8IrO 6, material was prepared via heating Li 2O and IrO 2 starting materials in a sealed quartz tube at 650 °C for 48 hours. The structure was determined from Rietveld refinement of room temperature powder neutron diffraction

An Interlaboratory Study to Evaluate the Forensic Analysis and Interpretation of Glass Evidence

November 14, 2021
Author(s)
Katelyn Lambert, Shirly Montero, Anuradha Akmeemana, Ruthmara Corzo, Gwyneth Gordon, Emily Haase, Ping Jiang, Oriana Ovide, Katrin Prasch, Kahlee Redman, Thomas Scholz, Tatiana Trejos, Jodi Webb, Peter Weis, Wim Wiardia, Sharon Wilczek, Huifang Xie, Peter Zoon, Jose Almirall
The results of an interlaboratory exercise involving ten (10) operational and research laboratories employing laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) and using a standard test method (ASTM E2927-16e1) for the forensic

Security for IEEE P1451.0-Based IoT Sensor Networks

November 13, 2021
Author(s)
Eugene Song, Kang B. Lee, Ke Zhou, Jun Wu
The challenges of the Internet of Things (IoT) sensor networks include connectivity, interoperability, security, and privacy. The Institute of Electrical and Electronics Engineers (IEEE) P1451.0 standard is being revised based on these challenges and

Sub-kelvin thermometer for on-chip measurements of microwave devices utilizing two-level systems in superconducting microresonators

November 13, 2021
Author(s)
Jordan Wheeler, Michael Vissers, Maxime Malnou, Johannes Hubmayr, Joel Ullom, Jiansong Gao
The design, implementation, and sensitivity of a new microwave multiplexable superconducting resonator thermometer based on two-level-systems are presented. The thermometer operates from 1 K to 50 mK and has the potential to measure down to 5 mK. The

Time Synchronization of IEEE P1451.0 and P1451.1.6 Standard-based Sensor Networks

November 13, 2021
Author(s)
Hiroaki Nishi, Eugene Song, Yuichi Nakamura, Kang B. Lee, Yucheng Liu, Kim Fung Tsang
This paper introduces the proposed time synchronization approaches to the Institute of Electrical and Electronics Engineers (IEEE) P1451.0 standard-based sensor networks for Internet of Things (IoT) applications. A time synchronization architecture of IEEE

Atom probe tomography for isotopic analysis: development of the 34S/32S system in sulfides

November 12, 2021
Author(s)
Phillip Gopon, James Douglas, Frederick Meisenkothen, Jaspreet Singh, Andrew London, Michael Moody
Using a combination of simulated data and pyrite isotopic reference materials, we have refined a methodology to obtain quantitative δ34S measurements from atom probe tomography (APT) datasets. This study builds on previous attempts to characterize relative

Identifying and Estimating Cybersecurity Risk for Enterprise Risk Management

November 12, 2021
Author(s)
Kevin Stine, Stephen Quinn, Nahla Ivy, Matthew Barrett, Greg Witte, Larry Feldman, Robert Gardner
This document supplements NIST Interagency or Internal Report 8286, Integrating Cybersecurity and Enterprise Risk Management (ERM), by providing additional detail regarding risk guidance, identification, and analysis. This report offers examples and

A Generic Flashover Prediction Model for Residential Buildings Using Graph Neural Network

November 11, 2021
Author(s)
Wai Cheong Tam, Eugene Yujun Fu, Paul A. Reneke, Richard D. Peacock, Thomas Cleary
A generic graph neural network-based model is developed to predict the potential occurrence of flashover for different building structures. The proposed model transforms multivariate temperature data into graph-structure data. Utilizing graph convolution

Bilateral comparison of the activity concentration for a standardized 137Cs solution between the National Institute of Standards Technology (NIST) and the National Institute of Nuclear Research (ININ)

November 10, 2021
Author(s)
Leticia Pibida, Willie Regits, Olga Garcia Diaz, Lucia Martinez Ayala, Hector Mendoza Nava
This paper summarized the results of the activity concentration of a 137Cs solution performed as a bilateral comparison between the National Institute of Standards and Technology (NIST) in the United States of America and the National Institute of Nuclear

Characteristics of Nuclear Power Plant Fires Involving Electrical Enclosures

November 10, 2021
Author(s)
Isaac Leventon, Kenneth Hamburger, Kevin B. McGrattan, Rick D. Davis
PRIMARY AUDIENCE Fire protection and fire probabilistic risk assessment engineers conducting or reviewing fire modeling that supports fire probabilistic risk assessments related to characteristics (e.g., ignition, fire growth, and peak heat release rate)

Theoretical Bounds on Data Requirements for the Ray-Based Classification

November 10, 2021
Author(s)
Brian Weber, Sandesh Kalantre, Thomas McJunkin, Jacob Taylor, Justyna Zwolak
The problem of classifying high-dimensional shapes in real-world data grows in complexity as the dimension of the space increases. For the case of identifying convex shapes of different geometries, a new classification framework has recently been proposed

Assessment of Serum Total 25-Hydroxyvitamin D Assays for Vitamin D External Quality Assessment Scheme (DEQAS) Materials Distributed at Ambient and Frozen Conditions

November 9, 2021
Author(s)
Johanna Camara, Christopher T. Sempos, Emma L. Williams, Graham D. Carter, Julia C. Jones, Carolyn Burdette, Grace Hahm, Federica Nalin, David L. Duewer, Adam J. Kuszak, J. M. Betz, Andrew Hoofnagle, Pierre Lukas, E. Cavalier, Ramon Durazo-Arvizu, P. M. Crump, Christian Popp, Christian Beckert, Glen Van Slooten, Patrick Gradon, Joelle Morgand, Sarah Paul, Bruno Emanuelli, Angelo Maggio, Fiona Ivison, Ralf Fischer, Jody M. van den Ouweland, Chung S. Ho, Emmett W. Law, Jean-Nicolas Simard, Renaud Gonthier, Brett Holmquist, Manisha S. Patwardhan, Marcelo C. Batista, Heather Pham, Sarah Meadows, Eugene Jansen, Dilshad A. Khan, Kimberly Robyak, Mark Kilbane, Neil Parker, Vincent Chen, Robert Fitzgerald, Sohail Mushtaq, Michael W. Clarke, Norma Breen, Christine Simpson, Stephen A. Wise
The Vitamin D External Quality Assessment Scheme (DEQAS) distributes human serum samples four times per year to over 1000 participants worldwide for the determination of total serum 25-hydroxyvitamin D [25(OH)D)]. These samples are stored at −40 °C prior
Displaying 4976 - 5000 of 73741
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