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Displaying 751 - 775 of 74030

Impact of fin aspect ratio on enhancement of external quantum efficiency in single AlGaN fin light-emitting diodes pixels

June 26, 2023
Author(s)
Babak Nikoobakht, Yuqin Zong, Okan Koksal, Amit Agrawal, Christopher B. Montgomery, Jacob Leach, Michael Shur
Previously, we showed within a sub-micron fin shape heterojunction, as current density increases, the non-radiative Auger recombination saturates mediated by the extension of the depletion region into the fin, resulting in a droop-free behavior. In this

Predicting ABM Results with Covering Arrays and Random Forests

June 26, 2023
Author(s)
Megan Olsen, M S Raunak, D. Richard Kuhn
Simulation is a useful and effective way to analyze and study complex, real-world systems. It allows researchers, practitioners, and de- cision makers to make sense of the inner working of a system that involves many factors often resulting in some sort of

Sodium Carbazolide and Derivatives as Solid-State Electrolytes for Sodium-Ion Batteries

June 26, 2023
Author(s)
Yang Yu, Jintao Wang, Zhaoxian Qin, Yingtong Lv, Qijun Pei, Khai C. Tan, Tengfei Zhang, Anan Wu, Hui Wu, Andrew S. Lipton, Ping Chen
Replacing widely used organic liquid electrolytes with solid-state electrolytes (SSEs) could effectively solve the safety issues in sodium-ion batteries. Efforts on seeking novel solid-state electrolytes have been continued for decades. However, issues

Single Flux Quantum-Based Digital Control of Superconducting Qubits in a Multi-Chip Module

June 24, 2023
Author(s)
Chuanhong Liu, Robert McDermott, Britton Plourde, Andrew Ballard, Jonathan DuBois, Pete Hopkins, David Olaya, John Biesecker, Samuel P. Benz, Dan Schmidt, Joel Ullom
The single flux quantum (SFQ) digital superconducting logic family has been proposed as a practical approach for controlling next-generation superconducting qubit arrays with more favorable scaling properties compared to conventional microwave-based

Infinite-randomness criticality in monitored quantum dynamics with static disorder

June 23, 2023
Author(s)
Aidan Zabalo, Justin Wilson, Michael Gullans, Romain Vasseur, Sarang Goplakrishnan, David Huse, Jed Pixley
We consider a model of monitored quantum dynamics with quenched spatial randomness: specifically, random quantum circuits with spatially varying measurement rates. These circuits undergo a measurement-induced phase transition (MIPT) in their entanglement

Oxidation caused by water outgassed from the thermal blanket on the SDO spacecraft

June 23, 2023
Author(s)
Robert F. Berg, Charles S. Tarrio, FRANCIS EPARVIER, ANDREW JONES
The Solar Dynamics Observatory (SDO) is a sun-observing spacecraft that includes two spectrometers that use aluminum membranes to filter solar radiation. The transmission of those filters degraded by a factor of 5 during the first five years after launch

Weak-Measurement-Induced Heating in Bose-Einstein Condensates

June 23, 2023
Author(s)
Emine Altuntas, Ian Spielman
Ultracold atoms are an ideal platform for understanding system-reservoir dynamics of many-body systems. Here, we study quantum back-action in atomic Bose-Einstein condensates, weakly interacting with a far-from resonant, i.e., dispersively interacting

Low-field MRI: A report on the 2022 ISMRM workshop

June 22, 2023
Author(s)
Adrienne Campbell-Washburn, Katy Keenan, Peng Hu, John Mugler, Krishna Nayak, Andrew Webb, Johnes Obungoloch, Kevin Sheth, Jurgen Hennig, Matthew Rosen, Najat Salameh, Daniel Sodickson, Joel Stein, Jose Marques, Orlando Simonetti

Current challenges and recent advances on the path towards continuous biomanufacturing

June 21, 2023
Author(s)
Boonserm Kulvatunyou, Milos Drobnjakovic, Nenad Ivezic, Vijay Srinivasan, Roger Hart
Continuous biopharmaceutical manufacturing is currently a field of intense research due to its potential to make the entire production process more optimal for the modern, ever-evolving biopharmaceutical market. Compared to traditional batch manufacturing

Interpretation and Report Writing in Forensic Comparisons of Paint Evidence: An Inter-laboratory Exercise

June 21, 2023
Author(s)
Donna J. Sirk, Andria Mehltretter, Meghan Prusinowski, Hal Arkes, David Flohr, Cedric Neumann, Scott Ryland, Tatiana Trejos
This interlaboratory study evaluated a guide for interpreting and reporting trace evidence examinations. The online survey aimed to assess the examiners' interpretation of casework scenarios designed by a subject matter expert panel (SMEP), specifically

Quantum-limited optical time transfer for future geosynchronous links

June 21, 2023
Author(s)
Emily Caldwell, Jean-Daniel Deschenes, Jennifer Ellis, William C. Swann, Benjamin Stuhl, Hugo Bergeron, Nathan R. Newbury, Laura Sinclair
The combination of optical time transfer and optical clocks opens up the possibility of large-scale free-space networks that connect both ground-based optical clocks and future space-based optical clocks. Such networks promise better tests of general

2022 NIST Summary of U.S. Legal Metrology Activities

June 20, 2023
Author(s)
Lisa Warfield, Tina G. Butcher, Richard A. Harshman, Jan Konijnenburg, Gloria Diane Lee, David Sefcik, Juana Williams, Katrice Lippa
The NIST Office of Weights and Measures (OWM) presents its first report 2022 NIST Annual Summary of U.S. Legal Metrology Activities report. This report includes a summary of changes made to NIST Handbook 44 (2021) Specifications, Tolerances and Other

Procedure Overhaul at the NIST Center for Neutron Research

June 19, 2023
Author(s)
Brandy Frie, David Griffin, James R. Whipple
The National Institute of Standards and Technology (NIST) Center for Neutron Research operates a 20 MW research reactor whose primary purpose is to produce cold neutrons for material sciences experiments. On February 3rd, 2021, a fuel element was unlatched
Displaying 751 - 775 of 74030