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Search Publications

NIST Authors in Bold

Displaying 1076 - 1100 of 73898

Versatile quantum-enabled telecom receiver

March 2, 2023
Author(s)
FNU Nur Fajar Rizqi Annafianto, Jabir Marakkarakath Vadakkepurayil, Ivan Burenkov, Abdella Battou, Sergey Polyakov
We experimentally demonstrate a quantum-measurement-based receiver for a range of modulation schemes and alphabet lengths in a telecom C-band. We attain symbol error rates below the shot noise limit for all the studied modulation schemes and the alphabet

Analysis of E3 Transitions in Ag-like High-Z Ions Observed with the NIST EBIT

March 1, 2023
Author(s)
Yuri Ralchenko, David La Mantia, Aung S. Naing, Paul Szypryt, Joseph N. Tan, Endre Takacs, Dipti Dipti, Yang Yang, Adam Hosier, Hunter Staiger
We report measurements and identification of the E3 4f$_7/2,5/2}$-5s$_1⁄2$ transitions and E1 allowed transitions in Ag-like W (Z=74), Re (Z=75), and Ir (Z=77). The spectra were recorded at the NIST EBIT using a grazing-incidence EUV spectrometer. The

AtomVision: A machine vision library for atomistic images

March 1, 2023
Author(s)
Brian DeCost, Ramya Gurunathan, Adam Biacchi, Kamal Choudhary
Computer vision techniques have immense potential for materials design applications. In this work, we introduce an integrated and general-purpose AtomVision library that can be used to generate and curate microscopy image (such as scanning tunneling

Backbone NMR assignment of the yeast produced Fab fragment of the NISTmAb reference antibody

March 1, 2023
Author(s)
Tsega Solomon, Kinlin Chao, Genevieve Gingras, Yves Aubin, William Brad O'Dell, John Marino, Robert Brinson
The monoclonal antibody (mAb) protein class has become a primary therapeutic platform for the production of new life saving drug products. MAbs are comprised of two domains: the antigen-binding fragment (Fab) and crystallizable fragment (Fc). Despite the

Certification of Standard Reference Material(R) 917d D Glucose (Dextrose)

March 1, 2023
Author(s)
Michael Nelson, Brian Lang, Blaza Toman, Jerome Mulloor
Standard Reference Material (SRM) 917d D Glucose (Dextrose) is certified as a chemical substance of known high purity. It is intended for use in calibrating measuring systems for glucose determinations employed in clinical analysis. A unit of SRM 917d

Fire Resistance of Structural Members and Assemblies

March 1, 2023
Author(s)
Matthew Hoehler
The selection of building materials and the design of the details of construction always play an important role in overall building fire safety. Two important fire safety considerations regarding the building structure are to minimize the likelihood of

Measuring the Frequency Accuracy and Stability of WWV and WWVH

March 1, 2023
Author(s)
Michael A. Lombardi
Radio station WWV, famous for the "at the tone ...." announcements broadcast at the top of each minute, is known to shortwave listeners and radio amateurs worldwide as a trusted source of accurate time. However, you might not know that the original purpose

Micelle formation and phase separation of poloxamer 188 and preservative molecules in aqueous solutions studied by small angle X-ray scattering

March 1, 2023
Author(s)
Rachel Ford, Peter H. Gilbert, Richard Gillilan, Qingqiu Huang, Roisin Donnelly, Ken Qian, David Allen, Norman Wagner, Yun Liu
Multi-injection pharmaceutical products such as insulin must be formulated to prevent aggregation and microbial contamination. Small-molecule preservatives and nonionic surfactants such as poloxamer 188 (P188) are thus often employed in protein drug

Solidification modes during additive manufacturing of steel revealed by high-speed X-ray diffraction

March 1, 2023
Author(s)
Hans-Henrik Konig, Niklas Hollander Pettersson, A Durga, Steven Van Petegem, Daniel Grolimund, Qilin Guo, Chihpin Chuang, lianyi Chen, Christos Oikonomou, Fan Zhang, Greta Lindwall
Solidification during fusion-based additive manufacturing (AM) is characterized by high solidification velocities and high thermal gradients, two factors that control the solidification mode of AM metals and alloys. Using two synchrotron-based, in situ

Thermal Polymorphism in CsCB11H12

March 1, 2023
Author(s)
Radovan Cerny, Matteo Brighi, Hui Wu, Wei Zhou, Mirjana Dimitrievska, Fabrizio Murgia, Valerio Gulino, Petra de Jongh, Benjamin Trump, Terrence J. Udovic
Thermal polymorphism in the alkali-metal salts incorporating the icosohedral monocarba-hydridoborate anion, CB11H12, results in intriguing dynamical properties leading to superionic conductivity for the lightest alkali-metal analogues, LiCB11H12 and

Empirical Validation of Automated Vulnerability Curation and Characterization

February 28, 2023
Author(s)
Ahmet Okutan, Peter Mell, Medhi Mirakhorli, Igor Khokhlov, Joanna Santos, Danielle Gonzalez, Steven Simmons
Prior research has shown that public vulnerability systems such as US National Vulnerability Database (NVD) rely on a manual, time-consuming, and error-prone process which has led to inconsistencies and delays in releasing final vulnerability results. This

Inhibition of human APE1 and MTH1 DNA repair proteins by dextran-coated g-Fe2O3 ultrasmall superparamagnetic iron oxide nanoparticles

February 28, 2023
Author(s)
Erdem Coskun, Pawel Jaruga, Miral M. Dizdar, Bryant C. Nelson, Neenu Singh, Leona Scanlan, Shareen Doak
Aim: To quantitatively evaluate the inhibition of human DNA repair proteins APE1 and MTH1 by dextran-coated γ-Fe2O3 ultrasmall superparamagnetic iron oxide nanoparticles (dUSPIONs). Materials & methods: Liquid chromatography–tandem mass spectrometry with

Distinct Contact Scaling Effects in MoS2 Transistors Revealed with Asymmetrical Contact Measurements

February 27, 2023
Author(s)
Zhihui Cheng, Curt A. Richter, Hattan Abuzaid, Jonathan Backman, Mathieu Luisier, Huairuo Zhang, Albert Davydov, Guoqing Li, Yifei Yu, Linyou Cao, Aaron Franklin
Two-dimensional (2D) materials have great potential for use in future electronics due to their atomic thin nature which withstands short channel effects and thus enables better scalability. Since improved scalability is the core advantage, both the channel

Extreme Bottom-up Gold Filling of High Aspect Ratio Features

February 27, 2023
Author(s)
Daniel Josell, Thomas P. Moffat
Where copper interconnects fabricated using superconformal electrodeposition processes have enabled dramatic advances in microelectronics over the last quarter century, gold filled gratings fabricated using superconformal 〖Bi〗^(3+)-mediated bottom-up

Self-dual quasiperiodic percolation

February 27, 2023
Author(s)
Grace Sommers, Michael Gullans, David Huse
How does the percolation transition behave in the absence of quenched randomness? To address this question, we study a nonrandom self-dual quasiperiodic model of square-lattice bond percolation. Through a numerical study of cluster sizes and wrapping

Reaction-Induced Phase Separation (RIPS) in Amine-Cured Epoxy/Epoxy Thermosets.2. Visualization of Heterogeneity using Fluorescence Lifetime Imaging Microscopy (FLIM)

February 25, 2023
Author(s)
Jeremiah Woodcock, Stephan J. Stranick, Anthony Kotula, Gale A. Holmes
The strategic integration of a rhodamine-spirolactam (RS) mechanophore into a transparent bis-epoxide/bis-epoxide/amine and corresponding bis-epoxide/amine networks has revealed, for the first time using fluorescence lifetime imaging microscopy (FLIM)

Nb/a-Si/Nb-junction Josephson-based arbitrary waveform synthesizers for quantum information

February 24, 2023
Author(s)
David Olaya, John Biesecker, Manuel Castellanos Beltran, Adam Sirois, Paul Dresselhaus, Samuel P. Benz, Pete Hopkins, Logan Howe
We demonstrate Josephson arbitrary waveform synthesizers (JAWS) with increased operating temperature range for temperatures below 4 K. These JAWS synthesizers were fabricated with externally-shunted Nb/a-Si/Nb junctions whose critical current exhibits
Displaying 1076 - 1100 of 73898