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Buildings & Construction

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Displaying 601 - 625 of 7680

New Fire Retardant Nanocomposites

February 19, 2017
Author(s)
Takashi Kashiwagi
This is a chapter of a proposed book. This chapter reviews the progress of flammability of new type of polymer nanocomposites based on nanosilica particles, polyhedral oligometric silsequixanes (POSS), graphite, and carbon nanotubes. Three different types

NIST Calibration Facility for Sizing Spheres Suspended in Liquids

February 19, 2017
Author(s)
Michelle K. Donnelly, George Mulholland, Michael R. Winchester
A calibration facility has been developed to measure the peak diameter of particles suspended in liquid using differential mobility analysis (DMA). A description of the facility and the features that contribute to measurements with low uncertainties is

NIST Research in Autonomous Construction

February 19, 2017
Author(s)
Alan M. Lytle, Kamel S. Saidi
The National Institute of Standards and Technology Construction Metrology and Automation Group is conducting ongoing research to provide standards, methodologies, and performance metrics that will assist the development of advanced systems to automate

NIST Research in Crane AutomationA 2007 Overview

February 19, 2017
Author(s)
Kamel S. Saidi, Alan M. Lytle
The National Institute of Standards and Technology (NIST) has been conducting research in crane automation since the mid 1980 s. A robotic crane (RoboCrane) based on an inverted, cable actuated Stewart-Gough platform principle was invented at NIST at that

NIST: A Century in the Business of Fire Safety

February 19, 2017
Author(s)
Richard Gann
This year, the National Institute of Standards and Technology (NIST), formerly the National Bureau of Standards (NBS), turned 100 years old. During that century, NBS/NIST measurement technology has done much to enable the business of fire safety. Today

North American Standards and Specifications for Portland Cement

February 19, 2017
Author(s)
J H. Pielert, G J. Frohnsdorff
The earliest work in the United States on the development of portland cement standards was conducted by the American Society of Civil Engineers in the late 1800s. ASTM and the Federal government joined the effort in the early 1900s and ASTM C9 American

Numerical Modeling of Fire Spread Through Individual Trees and Shrubs

February 19, 2017
Author(s)
William E. Mell, Samuel Manzello, Alexander Maranghides
Fire spread through suspended vegetation, such as tree crowns, is a basic component of wildland fires. Most models of fire spread do not resolve the burning of individual trees. Instead, fire spread through a forest canopy, representing a collection tree
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