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Search Publications

NIST Authors in Bold

Displaying 4451 - 4475 of 74220

Freezing of a Disorder Induced Spin Liquid with Strong Quantum Fluctuations

June 29, 2021
Author(s)
Xiao Hu, Daniel M. Pajerowski, Depei Zhang, Andrey Podlesnyak, Yiming Qiu, Qing Huang, Haidong Zhou, Israel Klich, Alexander I. Kolesnikov, M. B. Stone, Seung-Hun Lee
Sr 2CuTe 0.5W 0.5O 6 is a square-lattice magnet with super-exchange between S = 1/2 Cu 2+ spins mediated by randomly distributed Te and W ions. Here, using sub-K temperature and 20 µeV energy resolution neutron scattering experiments we show that this

Prospects of a Pb$^2+}$ ion clock

June 29, 2021
Author(s)
Kyle Beloy
We propose a high-performance atomic clock based on the 1.81 PHz transition between the ground and first-excited state of doubly ionized lead. Utilizing an even isotope of lead, both clock states have $I=J=F=0$, where $I$, $J$, and $F$ are the conventional

Super-Ancillary Equations for Cubic Equations of State

June 29, 2021
Author(s)
Ian Bell, Ulrich K. Deiters
Calculation of thermodynamic phase equilibrium is error-prone and can fail both near the critical point and at very low temperatures because of the limited precision available in double precision arithmetic. Most importantly, these calculations frequently

Towards Deep Q-Network Based Resource Allocation in Industrial Internet of Things

June 29, 2021
Author(s)
Fan Liang, Wei Yu, Xing Liu, David W. Griffith, Nada T. Golmie
With the increasing adoption of Industrial Internet of Things (IIoT) devices, infrastructures, and supporting applications, it is critical to design schemes to effectively allocate resources (e.g., networking, computing, and energy) in IIoT systems

Cryogenic single-port calibration for superconducting microwave resonator measurements

June 28, 2021
Author(s)
Haozhi Wang, Suren Singh, Corey Rae McRae, Joseph C. Bardin, S.-X. Lin, A. R. Castelli, Y. J. Rosen, David P. Pappas, J. Y. Mutus
Superconducting circuit testing and materials loss characterization requires robust and reliable methods for the extraction of internal and coupling quality factors of microwave resonators. A common method, imposed by limitations on the device design or

Hyperspectral study of the coupling between trions in WSe2 monolayers to a circular Bragg grating cavity

June 25, 2021
Author(s)
Marcelo I. Davanco, Oliver Iff, Simon Betzold, Magdalena Moczala-Dusanowska, Matthias Wurdack, Monika Emmerling, Sven Hofling, Christian Schneider
Circular Bragg gratings compose a very appealing photonic platform and nanophotonic interfacefor the controlled light-matter coupling of emitters in nanomaterials. Here, we discuss the integration ofexfoliated monolayers of WSe2with GaInP Bragg gratings

Quantifying Variability in Microscopy Image Analyses for COVID-19 Drug Discovery

June 25, 2021
Author(s)
Peter Bajcsy, Mylene Simon, Sunny Yu, Nick Schaub, Jayapriya Nagarajan, Sudharsan Prativadi, Mohamed Ouladi, Nathan Hotaling
Microscopy image-based measurement variability in high-throughput imaging experiments for biological drug discoveries, such as COVID-19 therapies was addressed in this study. Variability of measurements came from (1) computational approaches (methods), (2)

Quantum harmonic oscillator spectrum analyzers

June 25, 2021
Author(s)
Jonas Keller, Panyu Hou, Katherine C. McCormick, Daniel Cole, Stephen Erickson, Jenny Wu, Andrew C. Wilson, Dietrich Leibfried
Characterization and suppression of noise are essential for the control of harmonic oscillators in the quantum regime. We measure the noise spectrum of a quantum harmonic oscillator from low frequency to near the oscillator resonance by sensing its

Thermal Conductivity of Liquids

June 25, 2021
Author(s)
Marcia L. Huber
This is an update to the chapter on liquid thermal conductivity in the CRC Handbook of Chemistry and Physics, 102nd Ed.

A Decade of Reoccurring Software Weaknesses

June 24, 2021
Author(s)
Assane Gueye, Carlos Galhardo, Irena Bojanova, Peter Mell
The Common Weakness Enumeration (CWE) community publishes an aggregate metric to calculate the 'Most Dangerous Software Errors.' However, the used equation highly biases frequency and almost ignores exploitability and impact. We provide a metric to

Accurate localization microscopy by intrinsic aberration calibration

June 24, 2021
Author(s)
Craig Copeland, Craig McGray, Robert Ilic, Jon Geist, Samuel Stavis
A standard paradigm of localization microscopy involves extension from two to three dimensions by engineering information into emitter images, and approximation of errors resulting from the field dependence of optical aberrations. We invert this standard

Broadband, High-Frequency Permittivity Characterization for Epitaxial Ba1-xSrxTiO3 Composition-Spread Thin Films

June 24, 2021
Author(s)
Eric J. Marksz, Aaron Hagerstrom, Jasper A. Drisko, James Booth, Nate Orloff, Xiaohang Zhang, Naila Al Hasan, Justin Pearson, Ichiro Takeuchi
Next-generation millimeter-wave (> 30 GHz) telecommunications electronics must be compact, energy efficient, and have good thermal management. Tunable materials may play a role in meeting these requirements for millimeter-wave front-ends, but there are few

DeepNetQoE: Self-adaptive QoE Optimization Framework of Deep Networks

June 24, 2021
Author(s)
Hamid Gharavi
Future advances in deep learning and its impact on the development of artificial intelligence (AI) in all fields depends heavily on data size and computational power. Sacrificing massive computing resources in exchange for better precision rates of the

DNA glycosylase deficiency leads to decreased severity of lupus in the Polb-Y265C mouse model

June 24, 2021
Author(s)
Sesha Paluri, Matthew Burak, Alireza Senenjani, Kelly Carufe, Kaylin Clairmont, Isabel Alvarado-Cruz, Rithy Meas, Michael Kashgarian, Caroline Zeiss, Stephen Maher, Alfred Bothwell, Erdem Coskun, Melis Kant, Pawel Jaruga, Miral M. Dizdar, R S. Lloyd, Joann B. Sweasy
The Polb gene encodes DNA polymerase beta (Pol β), a DNA polymerase that functions in base excision repair (BER) and microhomology-mediated end-joining. The Pol β-Y265C protein exhibits low catalytic activity and fidelity, and is also deficient in

A Prototype of a Standard Spreadability Tester for Additive Manufacturing

June 23, 2021
Author(s)
Justin G. Whiting, Vipin Tondare, Shawn P. Moylan, Alkan Donmez
We describe a simple device called Standard Spreadability Tester (SST). The idea behind the SST is that instead of trying to predict how a powder will spread using the powder's intrinsic properties (e.g., PSD, morphology, surface, and chemical makeup) or

Atomic Dynamics of Metallic Glass Melts La 50 Ni 15 Al 35 and Ce 70 Cu 19 Al 11 Studied by Quasielastic Neutron Scattering

June 23, 2021
Author(s)
Peng Luo, Abhishek Jaiswal, Yanqin Zhai, Zhikun Cai, Nathan P. Walter, Long Zhou, Dawei Ding, Ming Liu, Rebecca Mills, Andrey Podlesnyak, Georg Ehlers, Antonio Faraone, Haiyang Bai, Weihua Wang, Y. Z.
By employing quasi-elastic neutron scattering, we studied the atomic-scale relaxation dynamics and transport mechanism of La 50Ni 15Al 35 and Ce 69Cu 20Al 10Nb 1 Studied by Quasi-Elastic Neutron Scattering metallic glass melts in the temperature range of

Implementation and Evaluation of a WLAN IEEE 802.11ay Model in Network Simulator ns-3

June 23, 2021
Author(s)
Hany Assasa, Nina Grosheva, Tanguy Ropitault, Steve Blandino, Nada T. Golmie, Joerg Widmer
The IEEE Task Group ay (TGay) has recently defined new physical and medium access control specifications to design the next generation wireless standard in the 60 GHz band, the so-called IEEE 802.11ay. Build upon its 802.11ad predecessor, IEEE 802.11ay

NetSimulyzer: a 3D Network Simulation Analyzer for ns-3

June 23, 2021
Author(s)
Evan Black, Samantha Gamboa Quintiliani, Richard A. Rouil
The increased complexity of network protocols and scenarios simulated using ns-3 is making the verification of simulation correctness and the analysis of simulation outputs a challenging task. In this paper, we present a new and flexible visualization tool
Displaying 4451 - 4475 of 74220