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Displaying 1876 - 1900 of 74084

RF Josephson Arbitrary Waveform Synthesizer with Integrated Superconducting Diplexers

August 24, 2022
Author(s)
Akim Babenko, Nathan Flowers-Jacobs, GREGOR LASSER, Justus Brevik, Anna Fox, Paul Dresselhaus, Zoya Popovic, Samuel P. Benz
We present the design, fabrication and characterization of a broadband RF Josephson Arbitrary Waveform Synthesizer (RF-JAWS) with a series array of 4500 Josephson junctions (JJs) and integrated low-pass/high-pass five-pole superconducting diplexers. The

a-Synuclein Interaction with Lipid Bilayer Discs

August 23, 2022
Author(s)
Marija Dubackic, Yun Liu, Elizabeth Kelley, Crispin Hetherington, Michael Haertlein, Juliette Devos, Sara Linse, Emma Sparr, Ulf Olsson
α-Synuclein (aSyn) is a 140 residue long protein that is present in presynaptic termini of nerve cells. The protein is also pathologically associated with Parkinson's disease, where it has been found to self-assemble into long amyloid fibrils forming

Megahertz-rate Ultrafast X-ray Scattering and Holographic Imaging at the European XFEL

August 23, 2022
Author(s)
Thomas J. Silva, Hans Nembach, Mark Keller, Justin Shaw, Nanna Hagstrom, michael schneider, Nico Kerber, Alexander Yaroslavtsev, Erick Parra, Eric Fullerton, Oleg Shpyrko, Christian Gutt, Hermann Durr, Ezio Iacocca, Roopali Kukreja, stefano Bonetti, Emmanuelle Jal
The advent of X-ray free-electron lasers (XFELs) has revolutionized fundamental science, from atomic to condensed matter physics, from chemistry to biology, giving researchers access to X-rays with unprecedented brightness, coherence, and pulse duration

Phase transformation dynamics guided alloy design for additive manufacturing

August 23, 2022
Author(s)
Qilin Guo, Minglei Qu, Chihpin Chuang, Lianghua Xiong, Ali Nabaa, Zachary Young, Yang Ren, Peter Kenesei, Fan Zhang, Lianyi Chen
Fusion-based additive manufacturing technologies enable the fabrication of geometrically and compositionally complex parts unachievable by conventional manufacturing methods. However, the non-uniform and far-from-equilibrium heating/cooling conditions pose

Plastic Anisotropy Evolution of SS316L and Modeling for Cruciform Specimen

August 20, 2022
Author(s)
Dilip K. Banerjee, Elizabeth Mamros, Sarah Mayer, Mark Iadicola, Brad Kinsey, Jinjin Ha
In this paper, the evolution of the plastic anisotropy of stainless steel 316L samples is investigated under proportional loading paths using a customized cruciform specimen. The determination of a novel cruciform specimen by a design of experiments

Evaluation of Methods for Determining the Yoshida-Uemori Combined Isotropic/Kinematic Hardening Model Parameters from Tension-Compression Tests of Advanced Lightweighting Materials

August 19, 2022
Author(s)
Dilip K. Banerjee, William E. Luecke, Mark Iadicola, Evan Rust
The performance of two methods, termed Manual and Optimization, for determining the values of the constitutive-model parameters for Yoshida-Uemori (Y U) isotropic-kinematic hardening model was evaluated. The Y U parameters were determined for two 6000

A Study of Error Floor Behavior in QC-MDPC Codes

August 17, 2022
Author(s)
Sarah Arpin, Tyler Billingsley, Daniel Hast, Jun Bo Lao, Ray Perlner, Angela Robinson
We present experimental findings on the decoding failure rate (DFR) of BIKE, a third-round candidate in the NIST Post-Quantum Standardization process, at the 20-bit security level. We select parameters according to BIKE design principles and conduct a

Bootstrapped Dimensional Crossover of a Spin Density Wave

August 17, 2022
Author(s)
Anjana Samarakoon, J. Strempfer, Junjie Zhang, Feng Ye, Yiming Qiu, J.-W. Kim, H. Zheng, S. Rosenkranz, M. Norman, J. Mitchell, D. Phelan
Quantum materials display rich and myriad types of magnetic, electronic, and structural ordering, often with these ordering modes either competing with one another or 'intertwining,' that is, reinforcing one another. Low dimensional quantum materials

Connecting entropy scaling and density scaling

August 17, 2022
Author(s)
Ian Bell, Robin Fingerhut, Jadran Vrabec, Lorenzo Costigliola
It is shown that the residual entropy (entropy minus that of the ideal gas at the same temperature and density) is mostly synonymous with the independent variable of density scaling, identifying a direct link between these two approaches. The residual

Diffuse Visual Transmission Density

August 17, 2022
Author(s)
Clarence Zarobila, Robert E. Vest, Maria E. Nadal
This document, SP250-99 (2022), NIST Measurement Services: Diffuse Visual Transmission Density, describes the instrument used to measure diffuse visual transmission density of both x-ray and photographic film step tablets. These step tablets replace former

Finding Kinship in the Women in Radio Science (WIRS) Chapter

August 17, 2022
Author(s)
Reyhan Baktur, zoya popovic, Jeanne Quimby, Emily Porter
This paper introduces the Women in Radio Science, the newest Chapter of the US National Committee of the International Union of Radio Science. The unique challenges of minority groups in radio science community are discussed. Value and impact of

Recommendation for Key Derivation Using Pseudorandom Functions

August 17, 2022
Author(s)
Lily Chen
This Recommendation specifies techniques for the derivation of additional keying material from a secret key—either established through a key-establishment scheme or shared through some other manner—using pseudorandom functions: HMAC, CMAC, and KMAC.

Relative effects of polymer composition and sample preparation on glass dynamics

August 17, 2022
Author(s)
Christopher Soles, Amanda L. Forster, Katherine Evans, Madhusudan (Madhu) Tyagi, Robert M. Elder, Timothy Sirk, Joseph Dennis, Kanae Ito, Osama Yamamuro, Hiroshi Akiba
Modern design of common adhesives, composites and polymeric parts makes use of polymer glasses that are stiff enough to maintain their shape under a high stress while still maintaining a ductile behavior after the yield point. Typically, material

The Single Residue K12 Governs the Exceptional Voltage Sensitivity of Mitochondrial Voltage-Dependent Anion Channel Gating

August 17, 2022
Author(s)
Van Ngo, Maria Queralt-Martin, Farha Khan, Lucie Bergdoll, Jeff Abramson, Sergey M. Bezrukov, Tatiana Rostovtseva, David Hoogerheide, Sergei Noskov
The voltage-dependent anion channel (VDAC) is a β-barrel channel of the mitochondrial outer membrane (MOM) that passively transports ions, metabolites, polypeptides, and single-stranded DNA. VDAC responds to a transmembrane potential by transitioning to a
Displaying 1876 - 1900 of 74084