An official website of the United States government
Here’s how you know
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.
Jeffrey W. Gilman, P H. Maupin, Richard H. Harris Jr., S Bellayer, Anthony J. Bur, S C. Roth, M Murariu, A B. Morgan, J R. Harris
A quiet revolution is occurring in the field of polymer science the high throughput (HT) or combinatorial revolution. It is, in a general sense, a change in the...
To control the Newton-Raphson solution of a nonlinear algebraic system, a descent method forces each step to reduce some norm of the residual errors. This...
This paper develops and compares a new method for calculating the local mean radiant temperature to experimental data and the classical method described by...
This document specifies the ISO 10303 application protocol (AP) Edition 2 for the exchange of spatial configuration information of process plants, plant systems...
These four chapters are part of a larger book on radiant heating and cooling. The goal of these chapters is to explain thermal comfort, how it is modeled, and...
Continuous monitors were employed for one year in an occupied townhouse to measure ultrafine, fine and coarse particles, air change rates, wind speed and...
Traditional air-handling unit (AHU) control systems link the position of the exhaust air damper, recirculation air damper, and outdoor air damper. Laboratory...
This paper proposes a measure of the deviation between a nonlinear equation and its affine model, and demonstrates applications to nonlinear systems. The...
A recent U.S. Census survey indicates that the two Illinois manufacturing extension centers, affiliated with the national Manufacturing Extension Partnership...
We have carried out first-principles calculation of Tc and other relevant parameters of the new 40 K superconductor MgB2. Our results are in excellent agreement...
This paper presents a method that uses Boolean logic to model complex logical constraints in a zero-one integer programming optimization. The article examines...
This paper presents a critical analysis of the economic impacts of past, ongoing, and planned collaborative research for developing and deploying cybernetic...
Grain is an essential source of the world's human and animal food supply. The production value of major grains in the United States is approximately $3.3...
This article describes efforts within NIST's Building and Fire Research Laboratory to develop baseline measures for the National Construction Goals. The...
Industrial engineers and construction specifiers are increasingly concerned about the implications of their material design and product selection decisions...
This paper presents a simplified, planar analysis of World Trade Center Tower 1 (WTC1), starting from a computer simulation of the fire using computational...
The applicability of a Nernst-Planck equation to characterizing diffusive transport in concentrated electrolytes typically found in cementitious systems is...
We present an estimate of the aerodynamic damping that affects the along-wind response of an isolated tall building in suburban terrain. The evaluation uses...
This paper presents an analytical assessment of the robustness of concrete deck-steel beam composite floor systems with shear connectors under the assumption...
The paper presents a brief overview of the National of Institute of Standards and Technology's (NIST) efforts towards standardizing methods for the performance...
Field inspection (including sampling) and laboratory testing of concrete and concrete-making materials are key activities ensuring that constructed facilities...
It has long been observed that porous materials undergoing a change in specific surface energy also undergo a volumetric strain in the direction to minimize the...
Alan M. Lytle, Sandor S. Szabo, Geraldine S. Cheok, Kamel S. Saidi, Richard J. Norcross
The NIST Construction Metrology and Automation Group (CMAG), in cooperation with the NIST Intelligent Systems Division (ISD), is developing performance metrics...
The authors thoughtful note is a welcome contribution to the ongoing debate on extreme wind estimation. We hope that the following comments on the note will be...
The Building and Fire Research Laboratory of the National Institute of Standards and Technology, in cooperation with the Fully Integrated and Automated...
Alan M. Lytle, Kamel S. Saidi, William C. Stone, Nicholas A. Scott
The NIST Construction Metrology and Automation Group, in cooperation with the NIST Intelligent Systems Division, is researching robotic structural steel...
Xiaohong Gu, Tinh Nguyen, Michael J. Fasolka, Mark R. VanLandingham, Jonathan W. Martin
Atomic force microscopy (AFM) has played an increasingly important role in characterizing surface morphology and surface properties of materials. However, the...
complishments and current standards development activities of the American Society for Testing and Materials (ASTM) Subcommittee E06.23, Lead Hazards Associated...