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Displaying 10851 - 10875 of 74178

Chapter 2 : Failure Modes, Likelihood, and Consequences

January 20, 2018
Author(s)
Kuldeep R. Prasad
The general purpose of underground gas storage (UGS) is to meet varying demand for natural gas (methane, CH4) over daily to seasonal time scales in the face of constant rate gas production and limited pipeline transport capacity. In California, UGS is used

Methods for Quantitative Infrared Directional-Hemispherical and Diffuse Reflectance Measurements Using a Fourier Transform Spectrometer and a Commercial Integrating Sphere

January 20, 2018
Author(s)
Leonard M. Hanssen, Thomas A. Blake, TImothy J. Johnson, Russell G. Tonkyn, Brenda M. Forland, Tanya L. Myers, Carolyn S. Brauer, Yin-Fong Su, Bruce E. Bernacki
Infrared integrating sphere measurements of solid samples are important in providing reference data for contact, standoff and remote sensing applications. At the Pacific Northwest National Laboratory (PNNL) we have developed protocols to measure both the

Thermodynamic Analysis of Classical and Quantum Search Algorithms

January 19, 2018
Author(s)
Ray A. Perlner, Yi-Kai Liu
We analyze the performance of classical and quantum search algorithms from a thermodynamic perspective, focusing on resources such as time, energy, and memory size. We consider two examples that are relevant to post-quantum cryptography: Grover's search

A NIST Testbed Approach to Verifying mmWave Wireless Communication Signals

January 18, 2018
Author(s)
Catherine A. Remley, Dylan F. Williams, Robert D. Horansky
This presentation discusses NIST methods for providing traceable modulated signals at microwave and millimeter-wave frequencies in both conducted and free-field environments. It was presented at the 3rd NSF mmWave Research Coordination Network Workshop in

Recommendations for assessing commutability part 1: general experimental design

January 18, 2018
Author(s)
Johanna Camara, W. Greg Miller, Schimmel Heinz, Neil Greenberg, Chris Burns, Vincent Delatour, Mauro Panteghini, Hubert W. Vesper, Robert Rej, Ferruccio Ceriotti, Gerhard Schumann, Jeffrey R. Budd, Weykamp Cas, Goran Nilsson, Finlay MacKenzie, Thomas Keller
Commutability is a property of a reference material that relates to the closeness of agreement between results for a reference material and results for clinical samples when measured by two or more measurement procedures. Commutability of reference

Recommendations for assessing commutability part 2: based on the difference in bias between a reference material and clinical samples

January 18, 2018
Author(s)
Johanna Camara, Goran Nilsson, Jeffrey R. Budd, Neil Greenberg, Vincent Delatour, Gerhard Schumann, Robert Rej, Mauro Panteghini, Ferruccio Ceriotti, Schimmel Heinz, Weykamp Cas, Thomas Keller, Chris Burns, Finlay MacKenzie, W. Greg Miller
A process is described to assess the commutability of a reference material intended for use as a calibrator, trueness control or external quality assessment sample based on the difference in bias between a reference material and clinical samples measured

Recommendations for assessing commutability part 3: based on the calibration effectiveness of a reference material

January 18, 2018
Author(s)
Johanna Camara, Weykamp Cas, Goran Nilsson, Robert Rej, Finlay MacKenzie, Ferruccio Ceriotti, Neil Greenberg, Schimmel Heinz, Gerhard Schumann, Thomas Keller, Vincent Delatour, Mauro Panteghini, Chris Burns, W. Greg Miller
A process is described to assess the commutability of a reference material intended for use as a calibrator based on its ability to fulfill its intended use in a calibration traceability scheme to produce equivalent clinical sample results among different

Counting Caenorhabditis elegans: Protocol Optimization and Applications for Population Growth and Toxicity Studies in Liquid Medium

January 17, 2018
Author(s)
Steven Lund, Sanem Hosbas Coskun, Monique Johnson, Christopher Sims, Elijah Petersen, John T. Elliott, Bryant C. Nelson, Leona D. Scanlan, Shannon K. Hanna, Karina Brignoni, Patricia Lapasett
The nematode Caenorhabditis elegans is used extensively in molecular, toxicological and genetics research. However, standardized methods for counting nematodes in liquid culture do not exist despite the wide use of nematodes and need for accurate

Measured Emission Spectra of Selected AWS-3 LTE Transmitters

January 16, 2018
Author(s)
Michael R. Frey, Geoffrey Sanders, Jolene Splett, John M. Ladbury, Frank Sanders, Azizollah Kord, Ryan T. Jacobs
Version three of Advanced Wireless Services (AWS-3) radio systems will soon use spectrum that is adjacent to bands currently used by airborne telemetry links at U.S. government test and training ranges (TTRs). It is possible that out-of-band (OoB) and

Synthetic clock transitions via continuous dynamical decoupling

January 16, 2018
Author(s)
Ian B. Spielman, Nathan Lundblad, Ana Valdes-Curiel, Dimitrius Trypogeorgos
Decoherence of quantum systems due to uncontrolled fluctuations of the environment presents fundamental obstacles in quantum science. `Clock' transitions which are insensitive to such fluctuations are used to improve coherence, however, they are not

Universal CPS Environment for Federation (UCEF)

January 16, 2018
Author(s)
Martin J. Burns, Thomas P. Roth, Edward R. Griffor, Paul A. Boynton, Janos Sztipanovits, Himanshu Neema
NIST, in collaboration with Vanderbilt University, has assembled an open-source tool set for designing and implementing federated, collaborative and interactive experiments with cyber- physical systems (CPS). These capabilities are used in our research on

Unraveling the Complex Hydration Behavior of Ionomers Under Thin Film Confinement

January 16, 2018
Author(s)
Shudipto K. Dishari, Christopher A. Rumble, Mark Maroncelli, Joseph Dura, Michael A. Hickner
Ionomers in thin films behave differently from bulk membranes and their behavior is not well understood. Here, thin films (25-250 nm) of sulfonated Radel (S-Radel) were investigated to understand thickness and hydration effects on the density and

Analysis and Control of RRAM Overshoot Current

January 15, 2018
Author(s)
Pragya R. Shrestha, David M. Nminibapiel, Jason P. Campbell, Jason T. Ryan, Dmitry Veksler, Helmut Baumgart, Kin P. Cheung
To combat the large variability problem in RRAM,current compliance elements are commonly used to limit the inrush current during the forming operation. Regardless of the compliance implementation (1R-1R or 1T-1R), some degree of current overshoot is

Domain Name System-Based Electronic Mail Security

January 15, 2018
Author(s)
Scott W. Rose, Karen M. Waltermire, Santos Jha, Chinedum Irrechukwu, William C. Barker
This document describes a security platform for trustworthy email exchanges across organizational boundaries. The project includes reliable authentication of mail servers, digital signature and encryption of email, and binding cryptographic key

Ferroelectricity in Polar Polymer-based FETs: A Hysteresis Analysis

January 15, 2018
Author(s)
Vasileia Georgiou, Dmitry Veksler, Jason Campbell, Jason Ryan, Pragya Shrestha, D. E. Ioannou, Kin P. Cheung
There is an increasing number of reports on polar polymer-based Ferroelectric Field Effect Transistors (FeFETs), where the hysteresis of the drain current - gate voltage (Id-Vg) curve is investigated as the result of the ferroelectric polarization effect

How to extract distributed circuit parameters from the scattering parameters of a transmission line

January 15, 2018
Author(s)
Nathan D. Orloff, Jasper A. Drisko, Angela C. Stelson, Charles A. Little, James C. Booth, Jordi Mateu, Christian J. Long
Distributed circuit parameters parameterize the transmission and reflection off a given transmission line in terms of a distributed resistance, inductance, capacitance, and conductance, which are per unit length frequency dependent quantities. While there

Hybrid Datafication of Maintenance Logs from AI-Assisted Human Tags

January 15, 2018
Author(s)
Thurston B. Sexton, Michael P. Brundage, Michael L. Hoffman, Katherine C. Morris
One of the main challenges of applying AI to some datasets derives from the datasets themselves being unstructured, unclear, and ambiguous. Furthermore, the insights that are to be gained reflect the quality of the data itself; if the data is skewed, so

Manufacturing and Contract Service Networks: Composition, Optimization and Tradeoff Analysis based on a Reusable Repository of Performance Models

January 15, 2018
Author(s)
Alexander Brodsky, Mohan Krishnamoorthy, Mohomad O. Nachawati, William Z. Bernstein, Daniel A. Menasce
In this paper we report on the development of a software framework and system for composition, optimization and trade-off analysis of manufacturing and contract service networks based on a reusable repository of performance models. Performance models

Qualitative Multidimensional Calibration Comparison

January 15, 2018
Author(s)
Aric W. Sanders, Ronald A. Ginley, Christian J. Long, Jasper A. Drisko, Nathan D. Orloff, Richard A. Chamberlin
We present a technique for the visual comparison of any two vector network analyzer calibrations. This method visualizes the comparative action of the calibrations for multiple complex scattering parameters relative to the calibrated measurement plane

G-band Reflectivity Results of Conical Blackbody for Radiometer Calibration

January 14, 2018
Author(s)
Derek A. Houtz, Dazhen Gu
Two hollow conical cavities have been developed and built for the National Institute of Standards and Technology (NIST) for use as radiometric brightness temperature sources, or blackbodies. According to Kirchoff's reciprocity relation, a good absorber is
Displaying 10851 - 10875 of 74178