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Displaying 26 - 50 of 74128

Low-frequency cryocoolers are compressed inefficiently

March 10, 2026
Author(s)
Ryan Snodgrass, Vincent Kotsubo, Jens Hoehne, Joel Ullom
Millikelvin refrigerators are enabling tools for many fields of modern science, including quantum information processing. They are typically precooled to 4 K by low-frequency pulse-tube refrigerators, which perform a thermodynamic cycle based on

Understanding the Risk of Lithium-Ion Battery Fires - multi-source data analysis

March 10, 2026
Author(s)
Stanley Gilbert, Hongqiang Fang, David Butry, Wai Cheong Tam, Michelle Donnelly, Juan Fung
Lithium ion battery (LIB) fires are a growing problem that extends across the supply chain, including mining, production, warehousing, shipping, and waste disposal, as well as the consumer side. But data on such fires is fragmented and mostly incomplete

Challenges to the monitoring of deployed AI systems: Center for AI Standards and Innovation

March 6, 2026
Author(s)
Anita Rao, Andrew Keller, Neha Kalra, Ryan Steed, Kweku Kwegyir-Aggrey, Kevin Klyman, Diane Staheli, Amanda Bergman
As artificial intelligence (AI) systems are increasingly integrated into commercial and government applications, there is a growing need to monitor these systems in real-world settings. Although pre-deployment evaluations are valuable for assessing AI

Efficiently gate-tunable ferromagnetism in ferromagnetic semiconductor-Dirac semimetal p-n heterojunctions

March 6, 2026
Author(s)
Emma Steinebronn, Saurav Islam, Abhinava Chatterjee, Bimal Neupane, Alexander Grutter, Christopher Jensen, Julie Borchers, Timothy Charlton, Wilson J. Yanez-Parreno, Juan Chamorro, Tanya Berry, Supriya Ghosh, K. A. Nivedith, K. A. Mkhoyan, Tyrel McQueen, Yuanxi Wang, Chaoxing Liu, Nitin Samarth
We use molecular beam epitaxy to develop a gate tunable p-n heterojunction that interfaces a canonical Dirac semimetal, Cd3As2, and a ferromagnetic semiconductor, In1−xMnxAs, with perpendicular magnetic anisotropy. Measurements of the anomalous Hall effect

Spin excitation continuum from degenerate states in the mixed ferro-antiferromagnetic exchange system CeMgAl11O19

March 6, 2026
Author(s)
Bin Gao, Tong Chen, Chunxaio Liu, Mason Klemm, Shu Zhang, Zhen Ma, Xianghan Xu, CHOONGJAE WON, Gregory McCandless, Karthik Rao, Naoki Murai, Seiko Ohira-Kawamura, Stephen Moxim, Jason Ryan, Xiaozhou Huang, Xiaoping Wang, Manh Duc Le, Emilia Morosan, Julia Chan, Sang-Wook Cheong, Oleg Tchernyshyov, Leon Balents, Pengcheng Dai
In magnetically ordered insulators, elementary quasiparticles manifest as spin waves - collective motions of localized magnetic moments that propagate through the lattice - observed via inelastic neutron scattering. In effective spin- 1/2 systems where

Advancing evanescent light scattering microscopy for single-particle characterization of gene delivery nanoparticles

March 4, 2026
Author(s)
Jagat Budhathoki, Gregory Cooksey, Matthew DiSalvo, Thomas Germer, Peter Bajcsy, Edward Kwee, Aaron Goldfain, Alexander Peterson
Precise and reproducible single-nanoparticle characterization is essential for advancing gene therapy, where viral vectors encapsulating therapeutic genes must be evaluated under formulation-relevant conditions. We present a label-free optical platform

Computational Materials for Qualification and Certification (CM4QC) Strategy Document: Maturation of Computational Materials Methods for Aviation-Focused Qualification and Certification of Metal Additive Manufacturing (as an Example of Process-Intensive M

March 4, 2026
Author(s)
Edward Glaessgen, Michael Gorelik, Lyle Levine, Corbett Battaile, Michael Kane, Nam Phan, Alexander Plotkowski, Edwin Schwalbach, Derrick Lamm, Narendran Raghavan, Nate Ashmore, Richard Barto, James Dobbs, Matthew Lynch, Markus Heinimann, Peter Kantzos, Alonso Peralta-Duran, Carl Popelar, Prabhjot Singh, Suresh Sundarraj, Paul Toivonen, Vasisht Venkatesh, Bret Vogel, Deborah Whitis, Harry Millwater, Anthony Rollett, Sankaran Mahadevan, Caglar Oskay, Todd Palmer, Gregory Wagner

QDFlow: A Python package for physics simulations of quantum dot devices

March 3, 2026
Author(s)
Donovan Buterakos, Sandesh Kalantre, Joshua Ziegler, Jacob Taylor, Justyna Zwolak
Recent advances in machine learning (ML) have accelerated progress in calibrating and operating quantum dot (QD) devices. However, most ML approaches rely on access to large, representative datasets designed to capture the full spectrum of data quality

Final report: Ecotoxicity of PFAS-Free Fire Fighting Foams: Fish and Aquatic Invertebrate Species ER20-1518

February 27, 2026
Author(s)
Edward Wirth, Marie DeLorenzo, Peter Key, Katy Chung, David Moore, Guilherme Lotufo, John Kucklick, Katherine Peter, Jessica Reiner
The Department of Defense (DoD) is actively engaging in research to identify fluorine free foams (F3) that do not contain per- and poly-fluorinated alkyl substances (PFAS) as replacements for traditional Aqueous Film Forming Foams (AFFF) products that

U.S. Election Expert Perspectives on End-to-End Verifiable Voting Systems

February 27, 2026
Author(s)
Julie Haney, Shanee Dawkins, Sandra Prettyman, Mary Theofanos, Kristen Greene, Kristin Koskey, Jody Jacobs
By using cryptographic techniques, end-to-end verifiable (E2EV) voting systems have been proposed as a way to increase voter trust and confidence in elections by providing the public with direct evidence of the integrity of election systems and outcomes

Certification of Standard Reference Material(R)s 3672a & 3673a: Organic Contaminants in Smokers' Urine (Frozen) & Organic Contaminants in Non-Smokers' Urine (Frozen)

February 25, 2026
Author(s)
Ashley Russell, Ben Blount, Julianne Botelho, Christina Brosius, Carolyn Burdette, Antonia Calafat, Johanna Camara, Jun Feng, Nathanael Heckert, Jennifer Hoguet, Kevin Huncik, Maria Morel Espinosa, Maria Ospina, Jared Ragland, Christopher Reese, Michael Rybak, Tiffany Seyler, Liza Valentin-Blasini, Lanqing Wang, Elena Wood, Baoyun Xia
Standard Reference Material (SRM) 3672a Organic Contaminants in Smokers' Urine (Frozen) and SRM 3673a Organic Contaminants in Non-Smokers' Urine (Frozen) are intended for use in evaluating analytical methods for the determination of selected naturally

Demonstration, validation, and application of hyperspectral microscopy for the collection of cyanobacterial spectral signatures

February 24, 2026
Author(s)
Natalie C. Hall, Adam Mumford, Aaron Goldfain, David Allen, Terry slonecker, Alisa Shtabnoy
Cyanobacterial and other algal blooms are an environmental concern in waterbodies worldwide. While these blooms are a nuisance for recreational activities, they can also be harmful to human and wildlife health when the algae produce and release toxins
Displaying 26 - 50 of 74128
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