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Displaying 426 - 450 of 74116

Non-resonant Two-photon X-ray Absorption in Cu

July 10, 2025
Author(s)
Joshua Kas, John Rehr, Joachim Stohr, John Vinson
We present a real-space Green's function theory and calculations of two-photon x-ray absorption (TPA). Our focus is on nonresonant K-shell TPA in metallic Cu, which has been observed experimentally at intense x-ray free electron laser (XFEL) sources. The

Reference Correlation of the Viscosity of Argon

July 10, 2025
Author(s)
Sofia Sotiriadou, Konstantinos Antoniadis, Marc Assael, Marcia Huber
This paper presents a new wide-ranging reference correlation for the viscosity of argon, incorporating recent ab initio dilute gas calculations and critically evaluated experimental data. The correlation is designed to be used with a high-accuracy

All-Optical Quenching of Integrated Frequency Comb Noise

July 9, 2025
Author(s)
Gregory Moille, Pradyoth Shandilya, Jordan Stone, Curtis Menyuk, Kartik Srinivasan
Integrated frequency combs promise transformation of lab-based metrology into disruptive real-world applications, particularly with octave-spanning microcombs enabling self-referenced optical synthesis and clock implementations. However, the integrated

INTERNATIONAL ROADMAP FOR DEVICES AND SYSTEMS TM 2024 METROLOGY

July 9, 2025
Author(s)
Yaw Obeng, Elisabeth Mansfield, Albert Davydov, Bryan Barnes, Andras Vladar
The Metrology Chapter identifies emerging measurement challenges from devices, systems, and integration of new materials in the semiconductor industry and describes research and development pathways for meeting them. This includes but not limited to

NIST SP 1181 - Unit Pricing Guide - A Best Practice Approach to Unit Pricing (2025 Ed.)

July 9, 2025
Author(s)
John McGuire, David Sefcik, Katrice Lippa, Scott Dolan, Isabel Baucom
This guide was developed to provide retailers with information about the best practice requirements for the unit pricing of commodities. The guide consists of best practice approaches that will improve the accuracy and usability of unit pricing information

Quasi-Deterministic Channel Propagation Model for Human Sensing: Gesture Recognition Use Case

July 9, 2025
Author(s)
Jack Chuang, Raied Caromi, Jelena Senic, Samuel Berweger, Neeraj Varshney, Jian Wang, Anuraag Bodi, Camillo Gentile, Nada Golmie
We describe a quasi-determinstic channel propagation model for human gesture recognition reduced from real-time measurements with our context aware channel sounder, considering four human subjects and 20 distinct body motions, for a total of 120,000

Solvent Exclusion Effect on Infrared Absorption Spectroscopy

July 9, 2025
Author(s)
Young Lee, Charles Camp, Bonghwan Chon, Seong-Min Kim, Sang Hak Lee
Absorption spectroscopy of a solution containing an analyte solute typically uses the transmission through a solvent as a reference based on the assumption that the solvent does not absorb light. However, when a solvent absorbs light, the resulting

Machine Learning for MPC Extraction and False Detection

July 8, 2025
Author(s)
Howard Dai, Jack Chuang, Jian Wang, Samuel Berweger, David Griffith
Multipath component (MPC) extraction is critical for channel modeling and joint communications and sensing (JCAS). Super-resolution algorithm known as CLEAN-Space-Alternating Generalized Expectation (CLEAN-SAGE) is widely used for MPC extraction. Because

Poly-Arginine Tails and Helical Segments of Natural Antimicrobial Peptides Display Concerted Action at Membranes for Enhanced Antimicrobial Effects

July 8, 2025
Author(s)
Navleen Kaur, Kinjal Mondal, Megan Mitchell, Sarala N. Padi, Jeffery B. Klauda, Antonio Cardone, Frank N. Heinrich, Christina Harris, David Giles, Mary Rooney, Erik Watkins, Myriam Cotten, David Hoogerheide, Mihaela Mihailescu
Sequence motifs or patterns found in natural antimicrobial peptides (AMPs) have a great impact on their microbicidal activities. Here, through database inquiries and biological assays, we explore the enhanced antibacterial function associated with poly

Community Resilience Economic Decision Guide and Tool: Research Overview 2025

July 7, 2025
Author(s)
Christina Gore, Jennifer Helgeson
Community resilience planning often requires quantifying and understanding the trade-offs that communities make between the benefits and costs of different potential resilience actions. The Economic Decision Guide (EDG) walks communities through the steps

Personalized Medicine: A Quality by Design Approach to Printable Tablet Production

July 7, 2025
Author(s)
Thomas Forbes, Olivia Agolini, Zainab Altamimi, Jeffrey Lawrence
The versatility afforded by emerging additive manufacturing technologies (e.g., 3D printing and precision drop-on-demand deposition) has enabled the rapid and agile production of personalized medicine. The on-demand customization capabilities of these

Primary activity measurement of an Am-241 solution using microgram inkjet gravimetry and decay energy spectrometry

July 7, 2025
Author(s)
Ryan Fitzgerald, Bradley Alpert, Denis Bergeron, Max Carlson, Richard Essex, Kelsey Morgan, Shinichiro N. Muramoto, Svetlana Nour, Galen O'Neil, Daniel Schmidt, Gordon Shaw, Daniel Swetz, R Verkouteren
We demonstrate a method for radionuclide assay that is spectroscopic with 100 % counting efficiency for alpha decay. Advancing both cryogenic decay energy spectrometry (DES) and drop-on-demand inkjet metrology, a solution of Am-241 was assayed for massic

Multi-laboratory measurements of 12CH4 2n3 band line parameters. Part I: Line intensities with relative combined standard uncertainties at the permille level

July 5, 2025
Author(s)
Zachary Reed, Manfred Birk, Yan Tan, Christina Cecelski, Georg Wagner, Shui-Ming Hu, David Long, Rui-Heng Yin, Joseph Hodges
We present accurate transition intensities for the R0 to R10 manifolds of 12CH4 in the 2ν3 tetradecad region determined independently by two separate laboratories through cavity ring-down spectroscopy and Fourier Transform spectroscopy measurements. Each

A Standards-Guided Approach for Formalizing Product Circularity Assessment Metrics

July 3, 2025
Author(s)
Junwon Ko, Sandwana Sneethan, Gisele Bortolaz Guedes, Fazleena Badurdeen, I.S. Jawahir, Buddhika Hapuwatte, Katherine Morris
The industrial transition towards a more sustainable Circular Economy (CE) emphasizes the need for products that align with CE principles and robust methods for assessing their circularity performance. However, ambiguities between metrics vs. indicators

Event Report for "MLXN25: Machine Learning for X-ray and Neutron Scattering"

July 3, 2025
Author(s)
Peter Beaucage, Tanny Andrea Chavez Esparza, Alexander Hexemer, Tyler Martin, Peter Muller-Buschbaum, Stephan Roth, Xiaoping Wang
The MLXN25 virtual event was held on April 15, 2025, as a continuous 24-hour global event, uniting over 300 registered participants from 18 countries and 20 user facilities to discuss how machine learning (ML) is transforming X-ray and neutron science

Human Use Conditions in Fatigue of Intravenous Leads Used in Cardiac Implanted Electronic Devices

July 3, 2025
Author(s)
Timothy Quinn, Charles Swerdlow, Lucas Koepke, James Dawson, Nicki Mara, Jason Santelli, Diane Muff, Jordan Savela, Alex Felber, Michael Friedrich, Jens Rump, Torsten Luther, Jake Benzing, Michael Peterson, Mohit Chawla, Stanislav Weiner, Byron Colley III, Jonathan Piccini
Background: Transvenous lead conductors are subject to fatigue fracture from repetitive bending stresses, which are proportional to alternating curvature. Knowledge of the stresses on implanted leads (fatigue environment) is a prerequisite for developing a

Implementation of a 1 GO star-mesh graphene quantum Hall array resistance standard network for high resistance calibration

July 3, 2025
Author(s)
Dean Jarrett, Albert Rigosi, Yanfei Yang, Alireza Panna, David Newell, Ngoc Thanh Mai Tran, Wei-Chen Lin, Marta Musso, Cheng-Hsueh Yang, Chi-Te Liang, Massimo Ortolano, Randolph Elmquist
A 1 GΩ star-mesh quantized Hall array resistance standard (QHARS) made of thirty-seven quantum Hall effect (QHE) elements was fabricated and tested. The 1 GΩ QHARS has three orders of magnitude fewer QHE elements than a largely series 1 GΩ QHARS, which
Displaying 426 - 450 of 74116
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