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Displaying 7201 - 7225 of 73726

Magnetic Order and Competition with Superconductivity in (Ho-Er)Ni 2 B 2 C

November 20, 2020
Author(s)
Suleyman Gundogdu, J. P. Clancy, Guangyong Xu, Yang Zhao, Paul A. Dube, Tufan C. Karalar, Beong K. Cho, Jeffrey W. Lynn, M. Ramazanoglu
The rare earth magnetic order in pure and doped Er (1−x)Ho xNi 2B^2^C (x = 0, 0.25, 0.50, 0.75, 1) single crystal samples was investigated using magnetization and neutron diffraction measurements. Superconducting quaternary borocarbides, RNi 2B 2C where R

An Initial Look at Federal Offices of Research and Technology Applications

November 19, 2020
Author(s)
Nicole K. Gingrich, Michael J. Hall, Isaac Patterson
In Science—the Endless Frontier, Vannevar Bush wrote that reaping the potential benefits of science conducted at federal laboratories requires the discoveries made in the labs be transferred to society. In federal laboratories, Offices of Research and

Experimental demonstration of the near-quantum optimal receiver

November 19, 2020
Author(s)
Jabir Marakkarakath Vadakkepurayil, Ivan Burenkov, FNU Nur Fajar Rizqi Annafianto, Abdella Battou, Sergey Polyakov
We implement the cyclic quantum receiver based on the theoretical proposal of Roy Bondurant and demonstrate experimentally below the shot-noise limit (SNL) discrimination of quadrature phase-shift keying signals (PSK). We also experimentally test the

GAA-GAA Coexistence in the CBRS Band: Performance Evaluation of Approach 3

November 19, 2020
Author(s)
Anirudha Sahoo, Weichao Gao
The General Authorized Access (GAA) users operate at the lowest priority in the Citizens Broadband Radio Service (CBRS) band. So they must not cause harmful interference to the higher priority users. In addition, the GAA users must cooperate with each

INFORMATION MODEL FOR A-UGV PERFORMANCE MEASUREMENT STANDARD

November 19, 2020
Author(s)
Soocheol Yoon, Roger V. Bostelman
Automatic through autonomous - Unmanned Ground Vehicles (A-UGVs) have the potential to be applied over a wide range of manufacturing systems under industry 4.0 paradigm. In order to use A-UGVs efficiently in a manufacturing system, it is necessary to

Isotope shift spectroscopy of the 1S0 to 3P1 and 1S0 to 3P0 transitions in strontium

November 19, 2020
Author(s)
Gretchen K. Campbell, Hirokazu Miyake, Neal Pisenti, Peter Elgee, Ananya Sitaram
Isotope shift spectroscopy with narrow optical transitions provides a benchmark for atomic struc- ture calculations, and has also been proposed as a way to constrain theories predicting physics beyond the Standard model. Here, we have measured frequency

Calibration Procedures for Orthogonal Superposition Rheology

November 18, 2020
Author(s)
Ran Tao, Aaron M. Forster
Orthogonal superposition (OSP) rheology is an advanced rheological technique that involves superimposing a small-amplitude oscillatory shear deformation orthogonal to a primary shear flow. This technique allows the measurement of structural dynamics of

DIGITAL TWIN FOR SMART MANUFACTURING: THE PRACTITIONER'S PERSPECTIVE

November 18, 2020
Author(s)
Maja Barring, Guodong Shao, Bjorn Johansson
The manufacturing sector is experiencing a technological paradigm shift, where new digital technologies can help digitalize product design, production systems, and manufacturing processes and generate more data. One of the essential technology concepts for

EFFECTS OF PRE-STRAIN ON THE NON-LINEAR VISCOELASTIC PROPERTIES OF A MODEL SEALANT

November 18, 2020
Author(s)
Christopher C. White, Donald L. Hunston, Kar tean Tan
The non-linear viscoelastic properties of a model sealant were measured using stress relaxation tests conducted at different strain levels, x. Some specimens were measured with no previous strain history while others were given a preconditioning that

Estimating the Impact of 16 CFR Part 1633 on Bed Fire Outcomes

November 18, 2020
Author(s)
Stanley W. Gilbert, David Butry, Rick D. Davis, Richard Gann
Effective July 1, 2007, the U.S. Consumer Product Safety Commission promulgated a standard to severely reduce the heat release rate and the early heat output from mattresses and foundations when ignited by a flaming ignition source. This study estimates

The Roles of Standard Cigarettes in Assuring the Ignition Resistance of Soft Furnishings

November 18, 2020
Author(s)
Richard G. Gann, Ickchan Kim, Steven P. Lund, William F. Guthrie, Rick D. Davis
Regulations for cigarette ignition resistance (CIR) of soft furnishings (beds and upholstered furniture) and less fire-prone cigarettes have contributed substantially to the decrease in losses from cigarette-initiated fires over time. Two Standard

Research Report: User Perceptions of Smart Home Privacy and Security

November 17, 2020
Author(s)
Julie M. Haney, Susanne M. Furman, Yasemin Acar
Smart home technologies may expose adopters to increased risk to network security, information privacy, and physical safety. However, users may lack understanding of the privacy and security implications, while devices fail to provide transparency and

Neutron Polarimetry Using a Polarized 3He Cell for the aCORN Experiment

November 16, 2020
Author(s)
Benjamin C. Schafer, W A. Byron, Wangchun Chen, B Collett, Maynard S. Dewey, Thomas R. Gentile, Md. T. Hassan, Gordon L. Jones, Alexander Komives, Fred E. Wietfeldt
The neutron polarization of the NG-C beamline at the NIST Center for Neutron Research was measured as part of the aCORN neutron beta decay experiment. Neutron transmission through a polarized 3He spin filter cell was recorded while adiabatic fast passage (

Observations on COMET

November 16, 2020
Author(s)
Daniel J. Bernstein, Henri Gilbert, Meltem Sonmez Turan
This note provides two observations on COMET, a second round candidate of the NIST lightweight cryptography standardization process. The first observation uses a long message to detect the use of weak keys, whereas the second observation focuses on the

Workforce Framework for Cybersecurity (NICE Framework)

November 16, 2020
Author(s)
Rodney Petersen, Danielle Santos, Karen Wetzel, Matthew Smith, Greg Witte
This publication from the National Initiative for Cybersecurity Education (NICE) describes the Workforce Framework for Cybersecurity (NICE Framework), a fundamental reference for describing and sharing information about cybersecurity work. It expresses

Quit Blaming ASHRAE Standard 62.1 for 1000 ppm CO2

November 15, 2020
Author(s)
Andrew K. Persily
Indoor concentrations of carbon dioxide (CO2) have been widely promoted as metrics of indoor air quality (IAQ) and ventilation, in many cases without a sound understanding or explanation of what they are intended to characterize or adequate discussion of
Displaying 7201 - 7225 of 73726
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