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Displaying 1926 - 1950 of 3873

Two-Sided Ignition of a Thin PMMA Sheet in Microgravity.

July 25, 2004

Author(s)

Y N. Nakamura, Takashi Kashiwagi, S L. Olson, K K. Nishizawa, O -. Fujita, K Ito

Fire Performance of Partition Assemblies

July 7, 2004

Author(s)

Samuel L. Manzello, Richard G. Gann, S R. Kukuck, Kuldeep R. Prasad, Walter W. Jones

For nearly a century, the cornerstone of fire safety in buildings has been the ability to confine a fire for a time sufficient for people to reach safety and for successful fire suppression activity. To effect this, the partitions in a building (walls

On the Use of Bench-scale Smoke Toxicity Data in Fire Hazard and Risk Assessment

July 7, 2004

Author(s)

Richard G. Gann

This paper outlines a need for accurate determination of the incapacitating potency of effluent from burning commercial products for use in fire risk and hazard analysis. Most such data will be derived from gas yield measurements in bench-scale apparatus

Advanced Techniques for Nanocharacterization of Polymeric Coating Surfaces

July 1, 2004

Author(s)

Xiaohong Gu, Tinh Nguyen, Li Piin Sung, Mark R. VanLandingham, Y C. Jean, Jonathan W. Martin

The applications of AFM and nanoindentation on study of surface property of polymeric coatings have been demonstrated. The surface microstructure of several coatings was characterized using tapping mode AFM, and the morphological change of coatings during

Cook County Administration Building Fire, 69 West Washington, Chicago, Illinois, October 17, 2003: Heat Release Rate Experiments and FDS Simulations

July 1, 2004

Author(s)

Daniel M. Madrzykowski, William D. Walton

On October 17, 2003, in the Cook County Administration Building, 69 West Washington, Chicago, Illinois, a fire resulted in six fatalities and several injuries. In response to a request from the Governor of Illinois, the National Institute of Standards and

Impacts of Design/Information Technology on Project Outcomes

July 1, 2004

Author(s)

Stephen R. Thomas, S H. Lee, J D. Spencer, R L. Tucker, Robert E. Chapman

This paper describes a collaborative effort by industry, government, and academia to evaluate the use of design/information technology (D/IT) and to relate the degree of use to project performance. A detailed statistical analysis of 297 projects in the

Issues Relating to the Mechanical Property Characterization of Sealant

July 1, 2004

Author(s)

Christopher C. White, Donald L. Hunston

fective characterization of the mechanical properties of sealant requires knowledge of the non-linear complex viscoelastic properties. Additionally, all cured sealants, typically elastomeric materials, exhibit the Mullins effect, which also must be

Triangular Meshing and Volume Determination

July 1, 2004

Author(s)

Christoph J. Witzgall, Geraldine Cheok

Parametric studies are reported for investigating the feasibility and accuracy of calculating volumes from LADAR scans of artifacts. The TIN (=Triangulated Irregular Network) technique was employed to construct surfaces on which the volume calculation was

June 2004 Progress Report on the Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST SP 1000-5)

June 30, 2004

Author(s)

Sivaraj Shyam-Sunder, C Sawyer

Provides details of the technical progress made since the May 2003 progress report on the World Trade Center (WTC) Investigation. The report includes a comprehensive summary of interim findings and accomplishments for each of the independent investigation

Modeling the Performance of a Naturally Ventilated Commercial Building With a Multizone Coupled Thermal/Airflow Simulation Tool.

June 26, 2004

Author(s)

James W. Axley, Steven Emmerich, George Walton

Naural ventilation systems have long been employed in European residences to control indoor air quality and provide thermal comfort. European building designers have turned to natural ventilation to control air quality and cool commercial and institutional

Environmentally Acceptable Flame Extinguishants

June 23, 2004

Author(s)

J D. Mather, R E. Tapscott

Experimental and Numerical Evaluation of Metallic Compounds for Suppressing Cup-Burner Flames

June 1, 2004

Author(s)

Gregory T. Linteris, V Katta, F Takahashi

The first tests of super-effective flame inhibitors blended with CO2 have been performed in methane-air co-flow diffusion flames. Although the organometallic agents used are typically one or two orders of magnitude more effective inhibitors than CF3Br when

Impact of Sprinklers on the Fire Hazard in Dormitories: Day Room Fire Experiments (NIST IR 7120)

June 1, 2004

Author(s)

Daniel M. Madrzykowski, D W. Stroup, William D. Walton

The National Institute of Standards and Technology (NIST) conducted two series of full-scale fire experiments in abandoned dormitory buildings. The objective of the study is to compare the levels of hazard created by room fires in a dormitory building with

Software for Optimizing Protection of Constructed Facilities

June 1, 2004

Author(s)

Amy S. Rushing, C J. Leng, Robert E. Chapman, Harold E. Marshall

Owners and managers of constructed facilities need help in optimizing protection against low-probability, extreme events, such as natural hazards and terrorist acts. Economic theory helps decision makers choose among engineering alternatives, management

Breakup of a Fluid Thread in a Confined Geometry: Droplet-Plug Transition Perturbation Sensitivity and Kinetic Stabilization with Confinement

May 26, 2004

Author(s)

John G. Hagedorn, Nicos Martys, Jack F. Douglas

The breakup of a fluid thread surrounded by another Newtonian fluid in a coaxial tube in the absence of imposed flow is investigated using the Lattice Boltzmann (LB) model. We observe a confinement-induced transition between spherical droplets to plugs in

Commissioning on HVAC Systems for Improved Energy Performance: IEA Annex 40 Update

May 18, 2004

Author(s)

Natascha S. Milesi-Ferretti

The Energy Conservation in Building and Community Systems program of the International Energy Agency has set up Annex 40, a research working group on Commissioning of Building HVAC Systems for Improved Energy Performance. The objective of Annex 40 is to

Modeling Study of the Behavior of Liquid Fire Suppression Agents in a Simulated Engine Nacelle

May 6, 2004

Author(s)

J W. Fleming, Jiann C. Yang

This paper reports a modeling study to determine the fire suppression potential for compounds based on their evaporation and transport behavior in a simulated engine nacelle. There is a high likelihood that low boiling point liquids will be required to

Performance Analysis of Next-Generation LADAR for Manufacturing, Construction, and Mobility

May 6, 2004

Author(s)

William C. Stone, Maris Juberts, Nicholas Dagalakis, Jack A. Stone Jr., Jason J. Gorman

The NIST Construction Metrology and Automation Group (CMAG), in cooperation with the NIST Intelligent Systems Division (ISD), is developing performance metrics and researching issues related to the design and development of a Next-Generation LADAR (laser

MEMS Sensors for HVAC&R

May 1, 2004

Author(s)

David A. Yashar, Piotr A. Domanski

MicroElectronic Mechanical Systems (MEMS) have revolutionized the market for sensors by providing small, fast-responding measurement devices at very low cost. These measurement devices have been widely accepted in many areas of engineering and have vastly

Predicting the Performance of Gaseous Air Cleaners Measurements and Model Simulations From a Residential-Scale Pilot Study

May 1, 2004

Author(s)

Cynthia H. Reed, Steven J. Nabinger, Steven Emmerich

As part of an ongoing effort to evaluate the predictive capability of indoor air quality (IAQ) simulation tools, the National Institute of Standards and Technology (NIST) is evaluating the ability of the multi-zone IAQ model CONTAM to predict the

Simulation of the Dynamics of a Fire in the Basement of a Hardware Store- New York, June 17, 2001

May 1, 2004

Author(s)

Nelson P. Bryner, Stephen Kerber

A computer based fire model, Fire Dynamic Simulator was used to reconstruction a portion of a fire that occurred in the basement of a hardware store. A FDS model scenario was deveoped that represented the building geometry, material thermal properties, and

The Rheology of Cementitious Materials: Chemistry, Colloids and Rocks

May 1, 2004

Author(s)

Robert J. Flatt, Nicos Martys

Knowledge of colloidal science has proven essential in the development of a new generation of dispersants for concrete. These polymer molecules induce steric repulsion between cement particles, reducing agglomeration and allow high workability to be

Thermal and Flammability Properties of Polypropylene/Carbon Nanotube Nanocomposites

May 1, 2004

Author(s)

Takashi Kashiwagi, E A. Grulke, J N. Hilding, Richard H. Harris Jr., John R. Shields, Kathryn M. Butler, K M. Groth, S B. Kharchenko, Jack F. Douglas

The thermal and flammability properties of polypropylene/multi-walled carbon nanotube, (PP/MWNT) nanocomposites were measured with the MWNT content varied from 0.5 % to 4 % by mass. Dispersion of MWNTs in these nanocomposites was characterized by SEM and

NIST-SFPE Workshop for Development of a National R&D Roadmap for Structural Fire Safety Design and Retrofit of Structures: Proceedings

April 20, 2004

Author(s)

K H. Almand, Long Phan, Therese P. McAllister, M A. Starnes, John L. Gross

This report describes the results of the workshop sponsored by the National Institute of Standards and Technology's Building and Fire Research Laboratory that was held on October 2-3, 2003 in Baltimore, MD. The workshop was planned to assist with the

Design of Occupant Egress Systems for Tall Buildings

April 19, 2004

Author(s)

Erica D. Kuligowski, Richard W. Bukowski

This paper presents an overview of current work and a discussion of the features of protected elevator systems that can provide safe and reliable operation both for fire service access and for occupant egress during fires. These features include water

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