Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications

Search Title, Abstract, Conference, Citation, Keyword or Author

Title

Author

NIST Pub Series

NIST Topic Areas

Report Number

Publication Date

Max Publication Date

NIST Authors in Bold

Displaying 2801 - 2825 of 3873

Large Scale Simulations of Single and Multi-Component Flow in Porous Media

July 1, 1999

Author(s)

Nicos Martys, John G. Hagedorn, D S. Goujon, J E. Devaney

We examine the utility of the lattice Boltzmann method for modeling fluid flow in large microstructures. First, results of permeability calculations are compared to predicted values for several idealized geometries. Large scale simulations of fluid flow

Lattice Boltzmann Simulations of Single and Multi-Component Flow in Porous Media

July 1, 1999

Author(s)

Nicos Martys, John G. Hagedorn, J E. Devaney

We examine the utility of the lattice Boltzmann method for modeling fluid flow in porous media. First the lattice Boltzmann method is validated for the case of single component flow in several idealized flow geometries. Large scale simulations of fluid

Measurement of the Rheological Properties of Cement Paste: A New Approach

July 1, 1999

Author(s)

Chiara F. Ferraris

This paper presents a new approach for predicting the rheological properties of concrete from rheological measurements on cement paste and from concrete composition. This approach requires measurement of the cement paste rheology under the same conditions

On-Line Monitoring and Fault Detection of Control System Performance

July 1, 1999

Author(s)

J E. Seem, J House, R H. Monroe

Modern energy management and control systems have alarm and trend features that allow building operators to monitor and troubleshoot building systems. The alarm feature can provide nearly immediate feedback when, for instance, a sensor value is ourside

Report from the 2nd Workshop on: Characterization and Modeling of the Interface/Interphase of Polymeric Materials and Systems December 7 and 8, 1998

July 1, 1999

Author(s)

Tinh Nguyen, Charles C. Han, Richard R. Cavanagh, R Ryntz

The interface/interphase region plays a fundamental role in a wide range of polymeric materials and systems such as polymer blends and alloys, nanocomposites, particle-filled systems, paints on plastics and metals, electronic packagings, and fiber

Survey of Fire Detection Technologies and System Evaluation/Certification Methodologies and Their Suitablity for Aircraft Cargo Compartments (NISTIR 6356)

July 1, 1999

Author(s)

Thomas G. Cleary, William L. Grosshandler

As part of the National Aeronautics and Space Administration (NASA) initiated program on global civil aviation, NIST is assisting the Federal Aviation Administration in its research to improve fire detection in aircraft cargo compartments. Improved fire

Development of a Hazard-Based Method for Evaluating the Fire Safety of Passenger Trains

June 29, 1999

Author(s)

Richard W. Bukowski, Richard D. Peacock, Paul A. Reneke, Jason D. Averill, S. H. Markos

The fire safety of U.S. passenger rail trains currently is addressed through small-scale flammability and smoke emission tests and performance criteria promulgated by the Federal Railroad Administration (FRA). The FRA approach relies heavily on test

Evaluating Multi-Sensor Fire Detectors in the Fire Emulator/Detector Evaluator

June 29, 1999

Author(s)

Thomas G. Cleary, Michael D. Anderson, Jason D. Averill, William L. Grosshandler

NIST has developed the Fire Emulator/Detector Evaluator (FE/DE) for the purpose of testing detectors in a controlled environment. The FE/DE is a flow tunnel where fire or nuisance source characteristics can be controlled so that a detector placed in the FE

On the Design of an Apparatus for Screening Liquid Fire Suppressants

June 29, 1999

Author(s)

Jiann C. Yang, Michelle K. Donnelly, N C. Prive, William L. Grosshandler

This paper discusses the design and use of an apparatus for evaluating the effectiveness of liquid fire suppression agents as possible replacements for halon 1301. The apparatus consists of a porous cylindrical burner located in the test section of a

Comparison of Wind Loading Estimates Based on Extreme Speeds and Squares of Extreme Speeds

June 1, 1999

Author(s)

Emil Simiu, A N. Heckert, James J. Filliben

The hypothesis that better estimates of wind force extremes are obtained by analyzing time series of squares of wind speeds, rather than time series of wind speeds, has been considered in the engineering literature. We present results of Monte Carlo

Defining Flashover for Fire Hazard Calculations

June 1, 1999

Author(s)

Richard D. Peacock, Paul A. Reneke, Richard W. Bukowski, Vyto Babrauskas

As the use of performance-based methods for evaluating the fire behavior of materials and systems becomes more widespread, objective criteria to judge fire behavior become more important. This paper reviews techniques for predicting the most common of

Energy Impacts of Infiltration and Ventilation in U.S. Office Buildings Using Multizone Airflow Simulation

June 1, 1999

Author(s)

Andrew K. Persily, Steven J. Emmerich

With exception of a few analyses of the impacts of ANSI/ASHRAE Standard 62-1989 and energy use in specific buildings, the energy used in commercial buildings due to infiltration and ventilation flows has received little attention. However, as improvements

Estimating the 95th Percentile of the Paste-Void Spacing Distribution in Hardened Cement Paste Containing Air Entrainment

June 1, 1999

Author(s)

Kenneth A. Snyder

The spacing equations of Powers, Philleo, and Pleau and Pigeon are used to estimate the uniform thickness of paste surrounding entrained air voids that is required to encompass 95 % of the air-paste system. Spacing equation accuracy is determined by

Mean-Field-Scaling in Lattice Boltzmann Fluid Mixtures

June 1, 1999

Author(s)

Nicos Martys, Jack F. Douglas

Basic equilibrium properties of Lattice Boltzmann (LB) fluid mixtures (coexistence curve, surface tension, and interfacial profile) are calculated to characterize the critical phenomena occurring in these model liquids and to establish a reduced variable

New Flame Retardants Consortium: Flame Retardant Mechanism of Silica. Final Report (NISTIR 6357)

June 1, 1999

Author(s)

Jeffrey W. Gilman, Takashi Kashiwagi, Marc R. Nyden, Richard H. Harris Jr.

The results of a two year research project carried out with the "New Flame Retardants Consortium" are reported. This investigation into the flame retardant mechanism of silica gel and other forms of silica has determined that the silica FR mechanism is

Performance of Tape-Bonded Seams of EPDM Membranes: Resistance to Peel-Creep

June 1, 1999

Author(s)

Walter J. Rossiter Jr, M Vangel, K M. Kraft

This paper provides a summary of the major results of an industry-government consortium study on the creep resistance of tape-bonded seams of EPDM roof membranes. The study was undertaken to compare the creep-rupture performance of tape-bonded and liquid

The Optimal Pricing of Publicly Supplied Private Goods: A Case Study of NIST Standard Reference Materials

June 1, 1999

Author(s)

S Fuller, J J. Cordes

This study provides a framework for determining optimal prices and production plans for a welfare-maximizing public enterprise that producesmultiple goods, faces a budget constraint, and is obligated to meet all demand. Public enterprises often operate

Determination of Water Spray Drop Size and Speed From a Standard Orifice, Pendent Spray Sprinkler. Report of Test.

May 27, 1999

Author(s)

Anthony D. Putorti Jr., T D. Belsinger, W H. Twilley

In order to characterize the water spray from a standard orifice,pendent spray sprinkler, measurements were made using an optical array probe droplet analyzer. the water droplet sizes and speeds from the sprinkler were measured at various locations in the

Cyanate Ester Clay Nanocomposites: Synthesis and Flammability Studies

May 23, 1999

Author(s)

Jeffrey W. Gilman, Richard H. Harris Jr., Douglas Hunter

New goals outlined by the U. S. Federal Aviation Administration (FAA) Advanced Fire-Safe Aircraft Materials Research Program enumerate an order-of-magnitude improvement in aircraft cabin-material fire safety. In the pursuit of improved approaches to the

Bursting Bubbles From Combustion of Thermoplastic Materials in Microgravity

May 18, 1999

Author(s)

Kathryn M. Butler

Many thermoplastic materials in common use for a wide range of applications, including spacecraft, develop bubbles internally as they bum due to chemical reactions taking place within the bulk. These bubbles grow and migrate until they burst at the surface

Construction Metrology Beyond Earth: A White Paper

May 6, 1999

Author(s)

D T. Latimer

Construction metrology standardization research currently focuses on terrestial applications. For space based applications, there is the potential for great monetary and effort savings through the creation of open industry standards. Current technology for

A Study of a Water-To-Water Heat Pump Using Hydrocarbon and Hydrofluorocarbon Zeotropic Mixtures

May 1, 1999

Author(s)

William V. Payne, Piotr A. Domanski, J Muller

This investigation compared the performance of R22 to the performance of propane (R290) and zeotropic mixtures of HFC's and hydrocarbons in a water-to-water heat pump. Baseline testing began with R22 and proceeded to R290, R32/290, R32/152a, and R290/600a

Combustion of a Polymer (PMMA) Sphere in Microgravity (NISTIR 6331)

May 1, 1999

Author(s)

Jiann C. Yang, Anthony P. Hamins, Michelle K. Donnelly

A series of low gravity experiments were conducted to investigate the combustion of supported thermoplastic polymer spheres under varying ambient conditions. The three types of thermoplastic investigated were polymethylmethacrylate (PMMA), polypropylene

Evolution of Refrigerant Application

May 1, 1999

Author(s)

Piotr A. Domanski

The paper reviews the development of chlorofluorocarbon refrigerants, the implemented replacements of ozone-depleting fluids, other considered alternatives, and the prospect for next-generation refrigerants in response to climate change concerns

Experimental Plan for Testing the Mechanical Properties of High-Strength Concrete at Elevated Temperatures (NISTIR 6210)

May 1, 1999

Author(s)

Long T. Phan, Richard D. Peacock

This report outlines an experimental plan designed to quantify the effect of elevated temperature on the mechanical properties of high-strength concrete. The experimental program will examine the influences of the following factors: (1) different steady

Was this page helpful?

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
-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
-Sensors
-Superconducting electronics
Energy
-Alternative energy
-Conventional energy
-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
--Network security and robustness
--Network test and measurement
--Next generation networks
--Protocol design and standardization
--Software defined and virtual networks
-Software research
--Software testing
-Usability and human factors
--Accessibility
-Video analytics
-Virtual / augmented reality
-Visualization research
-Voting systems
Infrastructure
Manufacturing
-Additive manufacturing
-Factory communications
-Factory operations planning and control
-Interoperability in manufacturing
-Machining
-Manufacturing economics
-Manufacturing quality assurance
-Manufacturing systems design and analysis
-Monitoring, diagnostics and prognostics
-Process improvement
-Process measurement and control
-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
-Systems integration
-Technology commercialization
Materials
-Ceramics
-Composites
-Concrete / cement
-Materials characterization
--Composition and structure
--Mechanical properties
--Thermal properties
-Metals
-Modeling and computational material science
-Polymers
-Superconductors
Mathematics and statistics
-Experiment design
-Image and signal processing
-Modeling and simulation research
-Numerical methods and software
-Statistical analysis
-Uncertainty quantification
Metrology
-Amount of substance
-Dimensional metrology
-Electrical / electromagnetic metrology
-Flow metrology and rheology
-Force metrology
-Humidity metrology
-Ionizing radiation metrology
-Mass metrology
-Metric
-Optical / photometry / laser metrology
-Pressure and vacuum metrology
-Thermometry metrology
-Time and frequency metrology
-Weights and measures
Nanotechnology
-Nanobiotechnology
-Nanochemistry
-Nanoelectronics
-Nanofabrication / manufacturing
--Lithography
--Self-assembly
-Nanofluidics
-Nanomagnetics
-Nanomaterials
-Nanomechanics
-Nanometrology
-Nanophotonics
-Nanophysics
-Nanoplasmonics
Neutron research
Performance excellence
-Assessment tools and services
-Baldrige award
-Baldrige examiners
-Baldrige Framework and Criteria
-Best practices
-Leadership development
Physics
-Atomic / molecular / quantum
-Biological physics
-Condensed matter
-Electron physics
-Magnetics
-Nuclear physics
-Optical physics and communications
-Quantum information science
-Radiation
-Spectroscopy
-Thermodynamics
-Time and frequency
Public safety
-Chemical / Biological / Radiological / Nuclear / Explosives (CBRNE)
-First responder preparedness
-Law enforcement
-Public safety communications research
-Response robots
Resilience
-Community resilience
--Recovery
--Resilience metrics
-Disaster and failure studies
-Earthquake risk reduction
-Resilience economics
-Resilient materials
-Windstorm impact reduction
Standards
-Accreditation
-Calibration services
-Conformity assessment
-Documentary standards
-Frameworks
-Quality assurance
-Reference data
-Reference instruments
-Reference materials
-Standards education
Technology transfer
Transportation
-Aerospace
-Automotive