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Displaying 801 - 825 of 3836

Evacuation of People with Disabilities on Stairs

September 18, 2012
Author(s)
Erica D. Kuligowski, Bryan Hoskins, Richard D. Peacock, Emily A. Wiess
The time that it takes a population to reach safety when descending a stairwell during building evacuations is typically described by measureable engineering variables. These engineering variables include stairwell geometry, speed, density, and pre

More Thoughts on Defaults

September 18, 2012
Author(s)
Steve M. Gwynne, Erica D. Kuligowski, Michael Spearpoint
In this paper, the use of default values in egress models is explored and specific values are proposed to combat issues of model misuse. The authors suggest that defaults should represent the most credibly conservative estimates available for core egress

Annex 47 Extended Project Summary

September 17, 2012
Author(s)
Natascha S. Milesi-Ferretti, Daniel Choiniere
In 2006, researchers from 22 organizations in ten countries began a joint effort to enable the cost-effective commissioning of existing and future buildings to improve the buildings’ operating performance. The commissioning techniques developed through

Annex 47 Report 2: Commissioning Tools for Existing and Low Energy Buildings

September 17, 2012
Author(s)
Christian Neumann , Henk Pietsman, Harunori Yoshida , Hideki Yuzawa, Takeshi Watanabe, Katsuhiro Kamitani, Hiroshige Kikuchi , Dirk Jacob, Oliver Baumann, Daniel Choiniere, Natascha S. Milesi-Ferretti
This report summarizes part of the work of IEA-ECBCS Annex 47 Cost-Effective Commissioning of Existing and Low Energy Buildings. It is based on the research findings from the participating countries. The publication is an official Annex report. Report 1,

Commissioning Cost-Benefit and Persistence of Savings: A Report on Cost-Effective Commissioning of Existing and Low Energy Buildings

September 17, 2012
Author(s)
Hannah Friedman, Marti Frank, David Claridge, Kristin Heinemeier, Kim Crossman, Eliot Crowe, Cory Toole, Natascha S. Milesi-Ferretti, Daniel Choniere
Commissioning of new and existing buildings has been shown to reduce energy usage and can also produce non-energy related benefits such as improved occupant comfort. When compared with other initiatives such as installation of high efficiency equipment or

Assessment of Factors Affecting Fire Performance of Mattresses: A Review

September 3, 2012
Author(s)
Rick D. Davis, Shonali Nazare, Kathryn M. Butler
An in-depth analysis of U.S. residential fire statistics shows that although the total number of fires and deaths due to mattress fires has dropped as a result of several regulatory approaches, the mattress/bedding fires continue to account for one of the

Overview of the Structural Design of World Trade Center 1, 2, and 7

September 1, 2012
Author(s)
Therese P. McAllister, Fahim Sadek, John L. Gross, Jason D. Averill, Richard G. Gann
This paper summarizes the primary structural systems which comprised World Trade Center 1, World Trade Center 2, and World Trade Center 7. The buildings were destroyed in the terrorist attacks of September 11, 2001. This paper describes the four major

Characterization of Surface Accumulation and Release of Nanosilica During Irradiation of Polymer Nanocomposites with Ultraviolet Light

August 12, 2012
Author(s)
Tinh Nguyen, Bastien T. Pellegrin, Coralie Bernard, Savelas A. Rabb, Paul E. Stutzman, Justin M. Gorham, Xiaohong Gu, Lee L. Yu, Joannie W. Chin
Nanofillers are increasingly used for enhancing multiple properties of polymeric materials in many applications. However, polymers are susceptible to photodegradation by solar ultraviolet (UV) radiation Therefore, nanofillers in a polymer nanocomposite

Structural Analysis of Impact Damage to World Trade Center Buildings 1, 2, and 7

August 12, 2012
Author(s)
Therese P. McAllister, Fahim Sadek, John L. Gross, Steven W. Kirkpatrick, Robert S. MacNeill, R. Bocchieri, Mehdi S. Zarghamee, Omer O. Erbay, Andrew T. Sarawit
The National Institute of Standards and Technology (NIST) conducted an extensive investigation of the collapse of World Trade Center towers (WTC 1 and WTC 2) and the WTC 7 building. This paper describes the reconstruction of impact damage to each of the

A Literature Review of the Effects of Fire Smoke on Electrical Equipment

July 31, 2012
Author(s)
Richard D. Peacock, Thomas G. Cleary, Paul A. Reneke, Daniel Murphy
A review is presented of the state of the art of smoke production measurement, prediction of smoke impact as part of computer-based fire modeling, and measurement and prediction of the impact of smoke through deposition of soot on and corrosion of

Firebrand Generation Data Obtained from a Full Scale Structure Burn

July 27, 2012
Author(s)
Sayaka S. Suzuki, Samuel Manzello, Matthew Lage, George Laing
A full scale, proof-of-concept experiment was conducted to investigate firebrand production from a burning structure. In this experiment, NIST researchers were invited to set up instrumentation during a structure burn down. As the structure burned

VOC emissions from a LIFE reference: small chamber tests and factorial studies

June 28, 2012
Author(s)
Wenjuan Wei, Sylvester M. Greer, Cynthia H. Reed, Andrew K. Persily, Yinping Zhang
A liquid-inner tube diffusion-film-emission (LIFE) reference was developed to quickly evaluate the performance of a chamber system for furniture/building material VOC emission tests. The reference has a constant emission rate determined by an analytical

Certification of SRM 2492: Bingham Paste Mixture for Rheological Measurements

June 7, 2012
Author(s)
Chiara F. Ferraris, Paul E. Stutzman, William F. Guthrie
Rheological measurements are often performed using a rotational rheometer. In this type of rheometer, the tested fluid is sheared between two surfaces, one of which is rotating [1]. Usually, the angular velocity is imposed and the response of the material
Displaying 801 - 825 of 3836