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Displaying 49801 - 49825 of 73969

A Usability Case Study Using TREC and ZPRISE

September 1, 1999

Author(s)

L L. Downey, D M. Tice

This paper examines the challenges involved in conducting and informal usability case study based on the induction of a new information retrieval system to experienced users. We present a summary of activities performed during two iterations of usability

Ab Initio Elastic Properties of Diamond-Like Materials: Electronic Factors That Determine a High Bulk Modulus

September 1, 1999

Author(s)

D G. Clerc

The elastic properties of cubic monocrystal diamond.

Accurate Estimates of Infinite-Dilution Chemical Potentials of Small Hydrocarbons in Water via Molecular Dynamics Simulation

September 1, 1999

Author(s)

J T. Slusher

The infinite dilution chemical potentials of methane, ethane, propane, benzene in water are precisely estimated using the single charging integral method [Chialvo, J. Chem. Phys. 1990, 92, 673; Chialvo, J. Phys. Chem. 1991, 95, 6683] in conjunction with

Advanced Technology Program's Approach to Technology Diffusion. Paper Presented at the NATO Science for Peace Programme Advanced Research Workshop Industry as a Stimulator of Technology Transfer

September 1, 1999

Author(s)

R T. Ruegg

This paper examines the approach to technology diffusion of a public-private partnership program in the United States, the Advanced Technology Program (ATP), that puts industry in the lead and emphasizes spillover effects for national economic benefit. The

Analysis of Environmentally Induced DNA Damage by Capillary Electrophoresis

September 1, 1999

Author(s)

Z E. Nackerdien, B Siles, S Nivens, Donald H. Atha

Chemical pollutants, ionizing radiation, the products of aerobic metabolism and UV light are important metabolic and environmental factors contributing to DNA damage. Ionizing radiation, in paticular, induces damage in the form of single strand breaks

Atomic Weights and Isotopic Compositions

September 1, 1999

Author(s)

J S. Coursey, Robert A. Dragoset, D J. Schwab

The atomic weights are available for elements 1 through 111, and isotopic compositions or abundances are given when appropriate. The atomic weights data were published by T. B. Coplen in Atomic Weights of the Elements 1995, J. Phys. Chem. Ref. Data, 26 (5)

Basis for Using Fire Modeling With 1-D Thermal Analyses of Barriers/Partitions to Simulate 2-D and 3-D Barrier/Partition Structural Performance in Real Fires.

September 1, 1999

Author(s)

Leonard Y. Cooper, J M. Franssen

Computer fire models for simulating compartment fire environments typically require a mathematical formulation that couples the thermal response of the gases that fill the compartment and the thermal response of compartment barriers and partitions. The

Bibliography of the NIST Optoelectronics Division

September 1, 1999

Author(s)

Amy Smith, Gordon W. Day

The National Institute of Standards and Technology's (NIST's) Optoelectronics Division was established in 1994 to provide the optoelectronics industry with measurement technology, standards, and traceability to those standards. Optoelectronics research at

Book Review of Statistical Inference Based on the Likelihood by Adelchi Azzalini

September 1, 1999

Author(s)

Stefan D. Leigh

Book review of Statistical Inference Based on the Likelihood, by Adelchi Azzalini (London: Chapman & Hall, 1996, x+341, currently distributed by CRC Press.

Chemical Science Technology Laboratory at a Glance

September 1, 1999

Author(s)

Hratch G. Semerjian, Ellyn S. Beary, W Koch

Selected NIST Chemical Science and Technology Laboratory (CSTL) activities and highlights.

Classification Techniques for Fault Detection and Diagnosis of an Air-Handling Unit

September 1, 1999

Author(s)

J House, Won Y. Lee, Dong R. Shin

The objective of this study is to demonstrate the application of several classification techniques to the problem of detecting and diagnosing faults in data generated by a variable-air-volume air-handling unit simulation model, and to describe the

Conceptual Design for Assembly

September 1, 1999

Author(s)

V Lombeyda, William Regli

This paper presents an approach to support computer-aided conceptual design of mechatronic assemblies in a collaborative, multi-user environment. We describe a system, Conceptual Understanding and Prototyping (CUP), that allows a team of design engineers

Critical Locus of Aqueous Solutions of Sodium Chloride

September 1, 1999

Author(s)

A A. Povodyrev, M A. Anisimov, J V. Sengers, W L. Marshall, Jan V. Sengers

Critical Region Vapor-Liquid Equilibrium Model of Ammonia-Water

September 1, 1999

Author(s)

James C. Rainwater, R Tillner-Roth

Two distinct thermodynamic models, the modified Leung-Griffths (MLG) model and a multiparameter equation of state explicit in Helmholtz energy, are used to correlate high-pressure vapor-liquid equilibrium (VLE) of ammonia-water. In view of the absence of

Cumulative Seismic Damage of Circular Bridge Columns: Variable Amplitude Tests

September 1, 1999

Author(s)

A El-Bahy, S K. Kunnath, William C. Stone, A W. Taylor

The findings from an experimental study to investigate cumulative seismic damage in reinforced concrete circular bridge piers is presented. Twelve identical quarter-scale bridge columns, designed in accordance with current AASHTO specifications, were

Digital Library Support for Engineering Design and Manufacturing

September 1, 1999

Author(s)

William Regli

This paper describes our initial efforts to deploy a digital library to support engineering design and manufacturing. This experimental testbed, The Engineeting Design Repository, is an effort to collect and archive public domain engineering data for use

Discussion of Design Gust Wind Speeds in the United States by Jon A. Peterka and Sobhan Shahid, Journal of Structural Engineering Vol. 124, No. 2, February 1998, pp. 207-214

September 1, 1999

Author(s)

Emil Simiu, James J. Filliben

The discussion presents a critique of estimates of 50-year gust speeds proposed in the paper.

Effect of AIN Encapsulate in High-Temperature Annealing on Ion-Implanted SiC as Characterized by SIMS

September 1, 1999

Author(s)

P Chi, E Handy, M V. Rao

Silicon carbide has been intensively studied due to its chemical and thermal stability and its wide band-gap characteristics that make this material attractive for high power, high speed, and high temperature device applications. At one time the doping of

Effect of In Vitro Acidification on Plaque Fluid Composition With and Without a NaF or a Controlled-Release Fluoride Rinse

September 1, 1999

Author(s)

Gerald L. Vogel, Z Zhang, Laurence C. Chow, Clifton M. Carey, Gary E. Schumacher, D Banting

Plaque fluid ion concentration changes, especially fluoride, in response to the pH decrease associated with a cariogenic episode are important components of the caries process. A controlled-release (CR) fluoride rinse, based on the controlled release of

Elastic Constants and Internal Friction of an SiC-Fiber-Reinforced Ti-Alloy-Matrix Crossply Composite: Measurement and Theory

September 1, 1999

Author(s)

H Ogi, K Takashima, H M. Ledbetter, Martin Dunn, G Shimoike, M Hirao, P Bowen

The complete elastic-constant tensor C ij and the corresponding internal friction Q y-1 for a cross-ply composite are measured.

Elastic Properties of a Tungsten-Silver Composite by Reconstruction and Computation

September 1, 1999

Author(s)

A P. Roberts, Edward Garboczi

A three-dimensional model of a tungsten-silver composite is statistically constructed from an experimental two-dimensional image. The effective Young's modulus (E) of the model is computed in the temperature range 25-1060 C using a finite element method

Elemental Data Index

September 1, 1999

Author(s)

M A. Zucker, Robert A. Dragoset, A R. Kishore

The Elemental Data Index provides access to the holdings of NIST Physics Laboratory online data organized by element. It is intended to simplify the process of retrieving online scientific data for a specific element. Data accessible through this index

Enhancing Collaboration using an Internet Integrated Workbench

September 1, 1999

Author(s)

Robert Allen, Srinivas Nidamarthi, S P. Regalla, Ram D. Sriram

We report on our experience using an Internet-based collaborative environment to enhance the design and manufacturing process of a custom-designed artifact transport system (ATS). Specifically, we focus on overcoming the hurdles associated with exchanging

Evaluated Chemical Kinetics Data for Reactions of N(2D), N2)), and N2(3u+) in the Gas Phase

September 1, 1999

Author(s)

J T. Herron

Chemical kinetics data for the gas phase reactions of the first two electronically excited states of atomic nitrogen, N(2D) and N(2P) and of the first excited state of molecular nitrogen, N2(*3*u+) are compiled and evaluated. The experimental data for 127

Evaluation of a Test Protocol for Explosives Trace Detectors Using a Representative Commercial Analyzer

September 1, 1999

Author(s)

G A. Eiceman, C Boyett, J E. Parmeter, Alim A. Fatah, Kathleen M. Higgins

A test protocol for evaluating trace detection has been developed and evaluated using a representative commercial analyzer. The test protocol was included as part of the NIJ GUIDE 100-99,

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
-Fundamental AI
-Hardware for AI
-Machine learning
-Trustworthy and responsible AI
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
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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
-Sensors
-Superconducting electronics
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
-Sustainability
Fire
-Fire detection
-Fire dynamics and science
-Fire fighting
-Fire modeling
-Fire risk reduction
-Materials flammability
-Structural fire resistance
-Wildland urban interface fire
Forensic Science
-Digital evidence
-Drugs and toxicology
-Firearms and toolmarks
-Forensic biometrics
-Forensic genetics
-Trace evidence
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
-Conformance testing
-Cyber-physical systems
--Smart cities
-Cybersecurity and privacy
--Cryptography
--Cybersecurity education and workforce development
--Cybersecurity measurement
--Identity and access management
--Privacy engineering
--Risk management
--Securing emerging technologies
--Trustworthy networks
--Trustworthy platforms
-Data and informatics
--Human language technology
--Information retrieval
--Natural language processing
-Digital twins
-Federal information processing standards (FIPS)
-Health IT
-Internet of Things (IoT)
-Interoperability testing
-Location based services
-Mobile
-Networking
--Mobile and wireless networking
--Network management and monitoring
--Network modeling and analysis
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--Network test and measurement
--Next generation networks
--Protocol design and standardization
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-Software research
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-Video analytics
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Infrastructure
Manufacturing
-Additive manufacturing
-Factory communications
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-Interoperability in manufacturing
-Machining
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-Manufacturing systems design and analysis
-Monitoring, diagnostics and prognostics
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-Product data
-Robotics
--Agility and adaptability
--Collaborative robots
--Dexterous grasping
--Manipulation
--Mobility and industrial autonomous vehicles
--Navigation / actuation / control
--Sensing and perception
-Supply chain
-Sustainable manufacturing
-Systems engineering
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Materials
-Ceramics
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-Concrete / cement
-Materials characterization
--Composition and structure
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Mathematics and statistics
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Metrology
-Amount of substance
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-Time and frequency metrology
-Weights and measures
Nanotechnology
-Nanobiotechnology
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--Lithography
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Neutron research
Performance excellence
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Physics
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Public safety
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-Response robots
Resilience
-Community resilience
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Standards
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Transportation
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