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Displaying 30626 - 30650 of 73697

Roughness-Induced Superhydrophobicity: A Way to Design Non-Adhesive Surfaces

July 4, 2008

Author(s)

Michael Nosonovsky, Bharat Bhushan

Non-adhesive and water-repellent surfaces are required for many tribological applications. Roughness-induced superhydrophobicty has been suggested as a way to reduce adhesion and stiction. In this paper, the theory of roughness-induced superhydrophobicity

Topography Measurements for Determining the Decay Factors in Surface Replication

July 4, 2008

Author(s)

Jun-Feng Song, P Rubert, Xiaoyu A. Zheng, Theodore V. Vorburger

The electro-forming technique is used at National Institute of Standards and Technology (NIST) for the production of standard reference material (SRM) 2461 standard casings to support nationwide ballistics measurement traceability and measurement quality

A Computational Model of an Outward Leak from a Closed-Ciucuit Breathing Device

July 3, 2008

Author(s)

Kathryn M. Butler

Closed-circuit breathing devices recycle exhaled air after scrubbing carbon dioxide and adding make-up oxygen from a tank of pure oxygen. This equipment provides up to four hours of use before oxygen cylinders and CO2-absorbent canisters need to be swapped

Near-field Scanning Measurements: Theory and practice

July 3, 2008

Author(s)

Michael H. Francis, Ronald C. Wittmann

This chapter summarizes theoretical and practical aspects of near-field scanning methods. These methods allow complete characterization of the transmitting or receiving properties using measurements made in close proximity to an antenna.

Composition-Explicit Distillation Curves of Commercial Biodiesel Fuels: Comparison of Petroleum-Derived Fuel with B20 and B100

July 2, 2008

Author(s)

Beverly L. Smith, Lisa S. Ott, Thomas J. Bruno

We have recently introduced several important improvements in the measurement of distillation curves for complex fluids. The modifications provide for (1) a composition explicit data channel for each distillate fraction (for both qualitative and

Computer-Based Monitoring for Decision Support Systems and Disaster Preparedness in Buildings

July 2, 2008

Author(s)

Alan B. Vinh

The operation of modern buildings can support a vast amount of static and real-time data. Static information such as building schematics is vital for security and rescue purposes. There is a need for building managers and for first responders to be

Dependence of the Intrinsic Spin Transfer Switching Current Density on the Size of Elliptical Spin Valves

July 2, 2008

Author(s)

Ranko R. Heindl, Stephen E. Russek, Thomas J. Silva, William H. Rippard, Jordan A. Katine

We studied current induced magnetization reversal in elliptical spin valves with CoFeB free layers. The data obtained from high-speed pulsed switching experiments, where the pulse widths were varied from 0.1 to 5 ns, showed differences in the intrinsic

Economical Mixtures to Reduce Both Thermal and Autogenous Shrinkage Contributions to Early-Age Cracking

July 2, 2008

Author(s)

Dale P. Bentz, Max A. Peltz

Early-age cracking continues to be a significant problem for new concrete construction. Two of the major contributors to such cracking are the heat released by cement hydration during the first few days of curing and the autogenous shrinkage that often

Nanowire-based superconducting single-photon detectors for infrared single-photon source characterization

July 2, 2008

Author(s)

Martin J. Stevens, Burm Baek, Richard P. Mirin, Sae Woo Nam, Robert Hadfield

Single-photon sources and detectors enable a wide range of applications, from quantum information technologies to fundamental tests of quantum optics. Semiconductor quantum dots (QDs) have emerged as promising single-photon sources, and recent work has

Thermal Decomposition Kinetics of the Aviation Turbine Fuel Jet-A

July 2, 2008

Author(s)

Jason A. Widegren, Thomas J. Bruno

As part of a larger-scale thermophysical and transport property measurement project, the global decomposition kinetics of the aviation turbine fuel Jet-A was investigated. Decomposition reactions were performed at 375, 400, 425, and 450 °C in stainless

A Determination of Hydration Mechanisms for Tricalcium Silicate Using a Kinetic Cellular Automaton Model

July 1, 2008

Author(s)

Jeffrey W. Bullard

A Profile for IPv6 in the U.S. Government - Version 1.0

July 1, 2008

Author(s)

Douglas C. Montgomery, J. S. Nightingale, Sheila E. Frankel, Mark E. Carson

This publication seeks to assist Federal agencies in formulating plans for the acquisition of IPv6 technologies. To achieve this, we define a standards profile for IPv6 in the USG that is intended to be applicable to all future uses of IPv6 in non-

Advanced Power Conditioning System Technologies for High-Megawatt Fuel Cell Power Plants

July 1, 2008

Author(s)

Allen R. Hefner Jr.

High-megawatt Power Conditioning Systems (PCSs) are required to convert the low-voltage produced by fuel cell modules in central station scale plants to the very much higher voltage levels required for delivery to the grid. As part of a NIST/DOE

An international comparability study to determine the sources of uncertainty associated with a non-competitive sandwich fluorescent ELISA

July 1, 2008

Author(s)

James E. Noble, Lili Wang, Eleonora Cerasoli, Alex E. Knight, Robert A. Porter, Elaine Gray, Chris Howe, Elisabeth Hannes, Philippe Corbisier, Jing Wang, Liqing Wu, Ilaria Altieri, Marina Patriarca, Angelika Hoffman, Ute Resch-Genger, Bernd Ebert, Jan Voigt, Yasushi Shigeri, Maxim S. Vonsky, L A. Konopelko, Adolfas K. Gaigalas, Bailey J. Marc

Bilateral optical power meter comparison between NIST and CENAM

July 1, 2008

Author(s)

Igor Vayshenker, J. Bermudez, J. Molina, Z. Ruiz, David J. Livigni, Xiaoyu X. Li, John H. Lehman

We describe the results of a comparison of reference standards between the National Institute of Standards and Technology (NIST-USA) and Centro Nacional De Metrologia (CENAM-Mexico). Open beam (free field) and optical-fiber-based measurements at

Certification of Standard Reference Materials for Bitter Orange

July 1, 2008

Author(s)

Lane C. Sander, K. Putzbach, Bryant C. Nelson, Catherine A. Rimmer, Mary Bedner, Jeanice M. Brown Thomas, Barbara J. Porter, Laura J. Wood, Michele M. Schantz, Karen E. Murphy, Katherine E. Sharpless, Stephen A. Wise, James H. Yen, P. H. Siitonen, R. I. Evans, A. NguyenPho, M. C. Roman, J. M. Betz

Color Quality and Spectra

July 1, 2008

Author(s)

Yoshihiro Ohno, Wendy L. Davis

Color quality, including white light chromaticity and color rendering performance, as well as luminous efficacy of radiation, for illumination sources are introduced. Spectral design considerations for white LED and solid-state lighting products to achieve

Comparison Between Theoretical CFV Flow Models and NIST s Primary Flow Data in the Laminar, Turbulent, and Transition Flow Regimes

July 1, 2008

Author(s)

Aaron N. Johnson, John D. Wright

Recent improvements in dimensional measurements of complex geometries have made it possible to accurately characterize the shape and throat size of commercially available small throat diameter critical flow venturis (CFVs). These improvements allow long

Comparison of the NIST and NRC Josephson Voltage Standards (SIM.EM.BIPM-K10.b)

July 1, 2008

Author(s)

Yi-hua Tang, Barry Wood

A comparison between the National Institute of Standards and Technology (NIST) and the National Research Council (NRC) Josephson Voltage Standards (JVS) was carried out at NRC from August 13 to August 17, 2007. The comparison was made at the 10 V level. It

Development of a Field Test Method to Evaluate Gaseous Air Cleaner Performance in a Multizone Building

July 1, 2008

Author(s)

Cynthia H. Reed, Steven J. Nabinger, Andrew K. Persily

The performance of gaseous air cleaners for commercial and residential buildings has typically been evaluated using test protocols developed for a controlled laboratory chamber or a test duct. It is currently unknown how laboratory measurements relate to

Error and Transient Analysis of Stepwise-Approximated Sinewaves Generated by Programmable Josephson Voltage Standards

July 1, 2008

Author(s)

Charles J. Burroughs, Alain Rufenacht, Samuel Benz, Paul Dresselhaus, Bryan C. Waltrip, Thomas L. Nelson

We are developing a quantum-based 60 Hz power standard that exploits the precision sinusoidal reference voltages synthesized by programmable Josephson voltage standards (PJVS). PJVS technology was chosen for this application because we need to generate

Evaluating Positive Pressure Ventilation In Large Structures: School Pressure and Fire Experiments

July 1, 2008

Author(s)

Stephen Kerber

A series of experiments was run in a masonry educational building examining the ability of PPV fans to limit smoke spread or to remove smoke from desired areas. Preliminary experiments examined the pressure increase created by portable fans and mounted

Evaluating Positive Pressure Ventilation In Large Structures: School Pressure and Fire Experiments (NIST TN 1498)

July 1, 2008

Author(s)

Stephen Kerber, Daniel M. Madrzykowski

A series of experiments was run in a masonry educational building examining the ability of fire service Positive Pressure Ventilation (PPV) fans to limit smoke spread or to remove smoke from areas where potential occupants may be located. The PPV fans are

Frequency and duration of communication system outages resulting from polarization mode dispersion

July 1, 2008

Author(s)

D. Yevick, M. Reimer, H. Yaffe, Paul Leo, D Peterson, S.C. T. Wang, Kent B. Rochford

In this paper, we employ measurements of transponder tolerance to both differential group delay (DGD) and second-order polarization mode dispersion (SOPMD) and of the temporal evolution of DGD and SOPMD in installed transmission systems to predict the

Guide for Assessing the Security Controls in Federal Information Systems: Building Effective Security Assessment Plans

July 1, 2008

Author(s)

Ronald S. Ross, L A. Johnson, Stuart W. Katzke, Patricia R. Toth, G. Stoneburner, G Rogers

[Superseded by NIST SP 800-53A, Rev. 1 (June 2010): http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906065] The purpose of NIST Special Publication 800-53A is to provide guidelines for building effective security assessment plans and

Advanced communications
-Open Radio Access Network (Open-RAN)
-Quantum communications
-Spectrum sharing
-Wireless (RF)
Artificial intelligence
-AI measurement and evaluation
-Autonomous systems
--Automated vehicles
--Autonomous laboratories
-Applied AI
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-Hardware for AI
-Machine learning
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Bioscience
-Bioeconomy
--Biological data
-Bioimaging
-Bioinformatics
-Biomanufacturing
-Biomaterials
-Biometrology
-Biosecurity
--Biosurveillance
--Genomic cybersecurity
--Nucleic acid sequence screening
-Cell measurements
-Engineering / synthetic biology
--Biofabrication
--Cell-free systems
--Genome engineering
--Protein engineering
-Gene delivery systems
-Genome editing
-Genomics
-Glycomics
-Metabolomics
-Microbial measurements
-Proteomics
Buildings and Construction
-Building codes and standards
-Building control systems
-Building damage and repair
-Building economics
-Building materials
-Energy efficiency
-Heating, ventilation and air conditioning equipment
-Indoor air quality
-Structural engineering
-Thermal comfort
Chemistry
-Analytical chemistry
-Chemical engineering and processing
-Chemical thermodynamics and chemical properties
-Molecular characterization
-Theoretical chemistry and modeling
-Thermochemical properties
Electronics
-Electromagnetics
-Flexible electronics
-Magnetoelectronics
-Optoelectronics
-Organic electronics
-Semiconductors
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Energy
-Alternative energy
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-Electric power / smart grid
-Fuels
Environment
-Air / water / soil quality
-Climate Measurements
-Environmental health
-Greenhouse gas measurements
-Marine science
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Fire
-Fire detection
-Fire dynamics and science
-Fire fighting
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-Materials flammability
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-Wildland urban interface fire
Forensic Science
-Digital evidence
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-Firearms and toolmarks
-Forensic biometrics
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Health
-Biopharmaceuticals
-Cell and gene therapy
-Clinical diagnostics
--Cancer
--Medical imaging
-Food and nutrition
-Human microbiome
-Precision medicine
-Regenerative medicine and advanced therapy
--Flow cytometry
Information technology
-Biometrics
-Cloud computing and virtualization
-Complex systems
-Computational science
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--Smart cities
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--Cryptography
--Cybersecurity education and workforce development
--Cybersecurity measurement
--Identity and access management
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--Securing emerging technologies
--Trustworthy networks
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-Data and informatics
--Human language technology
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--Mobile and wireless networking
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Infrastructure
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Materials
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Mathematics and statistics
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Metrology
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Nanotechnology
-Nanobiotechnology
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Neutron research
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Physics
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Public safety
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