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Displaying 2176 - 2200 of 2958

Initial Graphics Exchange Specification Volume 2: Application Protocols

May 12, 2003
Author(s)
Curtis H. Parks
This document brings together the fundamental contents of application protocols (AP) developed by the Initial Graphics Exchange Specification (IGES) Organization and approved as American National Standards (ANS) by the IGES Product Data Exchange using STEP

Block Copolymer Thin Films: Physics and Applications

February 15, 2001
Author(s)
Michael J. Fasolka, A M. Mayes
A two-part review of research concerning block copolymer thin films is presented. The first section summarizes experimental and theoretical studies of the fundamental physics of these systems, concentrating upon the forces that govern film morphology. The

Neutron Reflectivity Study of Diblock Formation During Reactive Blending Processes

August 1, 2000
Author(s)
Makoto Hayashi, H Grull, A R. Esker, M J. Weber, Li Piin Sung, Sushil K. Satija, Charles C. Han, TT Hashimoto
In a series of neutron reflectivity experiments, we studied the fundamental process of diblock formation during reactive blending processes of an immiscible blend comprised of normal polysulfone (hPSU) containing 30 % reactive endgroup-modified deuterated

Evaluation of High-Voltage Impulse Waveforms Using Model-Based Deconvolution

June 1, 1998
Author(s)
Gerald FitzPatrick, Eric D. Simmon, J. Lagnese
Accurate measurement of high voltage (hv) impulse waveforms is of critical importance in the testing of hv apparatus and for fundamental insulation studies. Quantifying the measurement system errors can be performed by following procedures recommended by

NIST Measurement Services: Radiance Temperature Calibrations

January 1, 1998
Author(s)
Charles E. Gibson, Benjamin K. Tsai, Albert C. Parr
This document describes the realization and dissemination of the International Temperature Scale of 1990 (ITS-90) above 700 [degrees] C at the National Institute of Standards and Technology (NIST). By using the fundamental principles of blackbody physics

Low-GWP Non-Flammable Alternative Refrigerant Blends for HFC-134a: Final Report

January 27, 2023
Author(s)
Piotr A. Domanski, Mark O. McLinden, Valeri I. Babushok, Ian Bell, Tara Fortin, Michael Hegetschweiler, Marcia L. Huber, Mark A. Kedzierski, Dennis Kim, Lingnan Lin, Gregory T. Linteris, Stephanie L. Outcalt, Vance (Wm.) Payne, Richard A. Perkins, Aaron Rowane, Harrison M. Skye
This project addresses the objectives of the Statement of Need number WPSON-17-20 "No/Low Global Warming Potential Alternatives to Ozone Depleting Refrigerants." Its goal was to identify low global-warming-potential (GWP), non-flammable refrigerants to

Unraveling spin entanglement using quantum gates with scanning tunneling microscopy-driven electron spin resonance

October 31, 2025
Author(s)
Eric Switzer, Jose Reina Galvez, Geza Giedke, Talat Rahman, Christoph Wolf, Deung-Jang Choi, Nicolas Lorente
Quantum entanglement is a fundamental resource for quantum information processing, and its controlled generation and detection remain key challenges in scalable quantum architectures. Here, we demonstrate the deterministic generation of entangled spin

Most stringent bound on electron neutrino mass obtained with a scalable low temperature microcalorimeter array

September 29, 2025
Author(s)
Bradley Alpert, Daniel Becker, Douglas Bennett, Joseph Fowler, Johnathon Gard, John Mates, Carl Reintsema, Daniel Schmidt, Daniel Swetz, Joel Ullom, Leila Vale, M. Balata, S. Nisii, A. Bevilacqua, M. De Gerone, G. Gallucci, L. Parodi, F. Siccardi, A. Borghesi, P. Campana, R. Carobene, M. Faverzani, A. Giachero, M. Gobbo, D. Labrbca, R. Morette, A. Nuciotti, L. Origo, S. Ragazzi, G. Ceruti, E. Ferri, G. Pessina, E. Celasco, F. Gatti, R. Dressler, E. Maugeri, D. Schumann, U Koster, M. Lusignoli, P. Manfrinetti, F Ahrens, E Bogini, M. Borghesi, P. Campana, R. Carbene, L. Ferrari Barusso, E. Ferri, G. Gallucci
The determination of the absolute neutrino mass scale remains a fundamental open question in particle physics, with profound implications for both the standard model and cosmology. Direct kinematic measurements, independent of model-dependent assumptions,

Materials discovery in combinatorial and high-throughput synthesis and processing: A new Frontier for SPM

August 27, 2025
Author(s)
Boris Slautin, Yungtao Liu, Kamyar Barakati, Yu Liu, Reece Emery, Seungbum Hong, Astita Dubey, Vladimir Shvartsman, Doru Lupascu, Sheryl Sanchez, Mahshid Ahmadi, Yunseok Kim, Evgheni Strelcov, Keith Brown, Philip Rack, Sergei Kalinin
For over three decades, scanning probe microscopy (SPM) has been a key method for exploring material structures and functionalities at nanometer and often atomic scales in ambient, liquid, and vacuum environments. Historically, SPM applications have

Size-exclusion chromatography with multi-angle static light scattering

June 26, 2025
Author(s)
Andre Striegel, Amandaa Brewer, Claudia Zielke
Size-exclusion chromatography coupled with multi-angle static light scattering (SEC/MALS) is a combined separation and detection technique that is principally used for determining the molar mass of natural and synthetic macromolecules and colloidal

Towards Precision Spectroscopy of Antiprotonic Atoms for Probing Strong-field QED

January 15, 2025
Author(s)
Goncalo Baptista, Shikha Rathi, Michael Roosa, Quentin Senetaire, Jonas Sommerfeldt, Toshiyuki Azuma, Daniel Becker, Francois Butin, Ofir Eizenberg, Joseph Fowler, Hiroyuki Fujioka, Davide Gamba, Nabil Garroum, Mauro Guerra, Tadashi Hashimoto, Takashi Higuchi, Paul Indelicato, Jorge Machado, Kelsey Morgan, Francois Nez, Jason Nobles, Ben Ohayon, Shinji Okada, Daniel Schmidt, Daniel Swetz, Joel Ullom, Pauline Yzombard, Marco Zito, Nancy Paul
PAX (antiProtonic Atom X-ray spectroscopy) is a new experiment with the aim to test strong-field quantum electrodynamics (QED) effects by performing high-precision x-ray spectroscopy of antiprotonic atoms. By utilizing advanced microcalorimeter detection

Insights into transient photovoltage lifetimes via dark J-V analysis in perovskite solar cells

September 23, 2024
Author(s)
Ganga Neupane, John Roller, Susanna Thon, Sheng Fu, Zhaoning Song, Yanfa Yan, Behrang Hamadani
Transient photovoltage (TPV) decay measurements have commonly been used to estimate the charge carrier lifetimes in solar cell devices. However, it has recently been demonstrated that an intrinsic material property such as the effective bulk carrier

Neutron Vibrational Spectroscopic Study of the 1:1 Acetylene:Ammonia Cocrystal Relevant to Titan, Saturn's Moon

July 5, 2024
Author(s)
Morgan Kramer, Trump Benjamin, Luke Daemen, Rafael Balderas-Xicohtencatl, Yongqiang Cheng, Anibal J. Ramirez-Cuesta, Craig Brown, Tomce Runcevski
The surface of Titan, Saturn's icy moon, is believed to be comprised of various molecular minerals with a great diversity in structure and composition. Under the surface conditions, 93 K and 1.45 atm, most small molecules solidify and form minerals

Temperature Dependence of Kinetic Friction: A Handle for Plastics Sorting?

February 26, 2024
Author(s)
Chad R. Snyder, Kalman Migler
Sortation is a crucial step in mechanical recycling of post-consumer plastics (PCR) whereby properties such as density or spectral signature are used to separate plastics. However it is difficult to sort polyolefin flakes at high throughput by these

Quantification of mRNA in Lipid Nanoparticles Using Mass Spectrometry

December 26, 2023
Author(s)
Mark Lowenthal, Abigail Antonishek, Karen Phinney
Lipid nanoparticle-encapsulated messenger RNA (LNP-mRNA) holds great promise as a novel modality for treating a broad range of diseases. The ability to quantify mRNA accurately in therapeutic products helps to ensure consistency and safety. Here we

Solvent Transport Model for Polyamide Nanofilm Membranes Based on Accurate Hansen Solubility Parameters

February 21, 2023
Author(s)
Min Gyu Shin, Wansuk Choi, June Huh, William Mulhearn, Jung Sun Hwang, Christopher Stafford, Jeong F Kim, Jung Hyun Lee
Polyamide (PA) nanofilm membranes for solvent filtration are widely used in various industries. However, reliable models that can describe solvent transport in PA membranes have yet to be developed owing to measurement challenges associated with the highly
Displaying 2176 - 2200 of 2958
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