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Displaying 476 - 500 of 73927

Radiative Decay Rate and Branching Fractions of MgF

September 8, 2023
Author(s)
Eric Norrgard, Catherine Cooksey, Stephen Eckel, Nickolas Pilgram, Kayla Rodriguez, Howard W. Yoon, Yuly Andrea Chamorro Mena, Lukas Pasteka, Anastasia Borschevsky
Here we report measured and calculated values of radiative decay rates and vibrational branching fractions for the A$^2\Pi$ state of MgF. The decay rate measurements use time-correlated single photon counting with roughly 1\,\% total uncertainty. Branching

Simulations of a frequency-chirped magneto-optical trap of MgF

September 8, 2023
Author(s)
Kayla Rodriguez, Nickolas Pilgram, Daniel Barker, Stephen Eckel, Eric Norrgard
We simulate the capture process of MgF molecules into a frequency-chirped molecular MOT. Our calculations show that by chirping the frequency, the MOT capture velocity is increased by about of factor of 4 to 80m/s, allowing for direct loading from a two

Single-photon Sources and Detectors Dictionary

September 7, 2023
Author(s)
Joshua Bienfang, Thomas Gerrits, Paulina Kuo, Alan Migdall, Sergey Polyakov, Oliver T. Slattery
The intention of this dictionary is to define relevant terms and metrics used in the characterization of single-photon detectors and sources with the goal to promote better understanding and communication of those metrics across the single-photon

Electrostatic modulation of thermoelectric transport properties of 2H-MoTe2

September 6, 2023
Author(s)
Tianhui Zhu, Sree Sourav Das, Safoura Nayebsadeghi, Fajana Tonni, Sergiy Krylyuk, Costel Constantin, Keivan Esfarjani, Albert Davydov, Mona Zebarjadi
Two-dimensional layered transition metal dichalcogenides are potential thermoelectric candidates with application in on-chip integrated nanoscale cooling and power generation. Here, we report a comprehensive experimental and theoretical study on the in

Quantifying Pairwise Similarity for Complex Polymers

September 6, 2023
Author(s)
Jiale Shi, Nathan Rebello, Dylan Walsh, Michael Deagen, Bruno Salomao Leao, Debra Audus, Bradley Olsen
Defining the similarity between chemical entities is an essential task in polymer informatics, enabling ranking, clustering, and classification. Despite its importance, pairwise chemical similarity for polymers remains an open problem. Here, a similarity

Understanding Stablecoin Technology and Related Security Considerations

September 5, 2023
Author(s)
Peter Mell, Dylan Yaga
Stablecoins are cryptocurrencies whose price is pegged to that of another asset (typically one with low price volatility). The market for stablecoins has grown tremendously – up to almost $200 billion USD in 2022. These coins are being used extensively in

Atom Probe Tomography Using an Extreme Ultraviolet Trigger Pulse

September 1, 2023
Author(s)
Benjamin Caplins, Ann Chiaramonti Debay, Jacob Garcia, Norman A. Sanford, Luis Miaja Avila
Atom probe tomography (APT) is a powerful materials characterization technique capable of measuring the isotopically resolved three-dimensional (3D) structure of nanoscale specimens with atomic resolution. Modern APT instrumentation most often uses an

Federal perspective on critical research issues in nanoEHS

August 31, 2023
Author(s)
Janet Carter, Sri Nadadur, Rhema Bjorkland, William Boyes, Chuck Geraci, Vincent A. Hackley, John Howard, Alan Kennedy, Igor Linkov, Joanna Matheson, Holly Mortensen, Custudio Muinga, Elijah Petersen, Nora Savage, Stacey Standridge, Trey Thomas, Benjamin Trump
This article discusses critical issues and opportunities going forward in nanotechnology environmental, health, and safety (nanoEHS) research from the perspective of Federal Government agency participants in the U.S. National Nanotechnology Initiative (NNI

Safeguarding International Science: Research Security Framework

August 31, 2023
Author(s)
Gregory F. Strouse, Claire M. Saundry, Timothy Wood, Philip Bennett, Mary Bedner
The U.S. science and research ecosystem retains its leadership by actively engaging with the global community through the conduct of mutually beneficial collaborative research and the welcoming of international scientists. Coupled with that, the national

A multipathway phosphopeptide standard for rapid phosphoproteomics assay development

August 30, 2023
Author(s)
Brian Searle, Allis Chien, Antonius Koller, David Hawke, Anthony Herren, Jenny Kim, Kimberly Lee, Ryan Leib, Alissa Nelson, Jian Min Ren, Paul Stemmer, Yiying Zhu, Ben Neely, Bhavin Patel
Recent advances in methodology have made phosphopeptide analysis a tractable problem for many proteomics researchers. There are now a wide variety of robust and accessible enrichment strategies to generate phosphoproteomes while free or inexpensive

Determining Site-Specific Glycan Profiles of Recombinant SARS-CoV-2 Spike Proteins from Multiple Sources

August 30, 2023
Author(s)
Meghan Burke Harris, Yi Liu, Concepcion Remoroza, Yuri Mirokhin, Sergey Sheetlin, Dmitrii V. Tchekhovskoi, Guanghui Wang, Xiaoyu (Sara) Yang, Stephen E. Stein
Glycopeptide Abundance Distribution Spectra (GADS) were recently introduced as a means of representing, storing and comparing glycan profiles of intact glycopeptides. Here, using that representation, an extensive analysis is made of multiple commercial

Wireless Channel Characterization for UWB Communication in Capsule Endoscopy

August 30, 2023
Author(s)
Katjana Ladic, Kamran Sayrafian, Dina Simunic, Kamya Yazdandoost
Since its invention in the early 1990s the technology behind capsule endoscopy has been making rapid progress. The emergence of high-resolution miniature video cameras along with other microsensor technology have increased the data rate and power

Dynamic Regret of Randomized Online Service Caching in Edge Computing

August 29, 2023
Author(s)
Siqi Fan, I-Hong Hou, Van Sy Mai
This paper studies an online service caching problem, where an edge server, equipped with a prediction window of future service request arrivals, needs to decide which services to host locally subject to limited storage capacity. The edge server aims to
Displaying 476 - 500 of 73927