U.S. flag

An official website of the United States government

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

NIST Authors in Bold

Displaying 5151 - 5175 of 13218

Kinetic Minimum-Power Routing and Clustering in Mobile Ad-Hoc Networks

September 1, 2002
Author(s)
Camillo Gentile, R E. Van Dyck, J Haerri
… necessary to maintain the minimum-power multi-hop routes in a mobile ad-hoc network, assuming a piece-wise linear model for the motion of the nodes. In this paper we extend the routing algorithm to include … distance between nodes. The proposed algorithm converges in a finite number of iterations to both stable routes and …

E-Glass/DGEBA/m-PDA Model Composites: Time Dependent Failure in a Brittle Multi-Fiber Composite

June 1, 2002
Author(s)
Gale A. Holmes, Walter G. McDonough
… shown to be dependent on the matrix. For example, Bader in 1968 noted that composites with brittle matrices and … relatively weak fiber-matrix interfacial bonding failed in a brush-like manner, while composites with comparatively … no longitudinal splitting. Although the tensile strength in a unidirectional composite is mainly influenced by the …

An Assessment Standard for the Evaluation of Display Measurement Capabilities

November 1, 2000
Author(s)
John M. Libert, Paul A. Boynton, Edward F. Kelley, Steven W. Brown, Yoshi Ohno
… is being developed by NIST to assist the display industry in standardizing measurement methods used to quantify the … and colorimetric measurement problems commonly encountered in measuring electronic displays. NIST investigators will … emerge from the data will be used to assist laboratories in correcting deficiencies or in identifying metrology …

Report on the DHS/NIST Workshop on Standards for an Enduring Capability in Wastewater Surveillance for Public Health (SWWS Workshop)

August 16, 2022
Author(s)
Nancy Lin, Stephanie Servetas, Scott Jackson, Katrice Lippa, Kirsten Parratt, Philip Mattson, Clare Beahn, Mia Mattioli, Sally Gutierrez, Michael Focazio, Ted Smith, Paul Storella, Sarah Wright
… biological and chemical contaminants on a community level in support of public health and safety decisions. Wastewater … co-sponsored by the National Institute of Standards and Technology and the Department of Homeland Security, aimed to … including government, public health, testing and manufacturing, academia, and non-profits. The presentations, …

Sizing up the Next Generation of Nanomedicines

December 11, 2019
Author(s)
Jeffrey D. Clogston, Vincent A. Hackley, Adriele Prina-Mello, Sanyogitta Puri, Silvia Sonzini, Patrick Lim Soo
… sixty nanoparticle (NP) formulations have been approved in the US and EU while many others are in clinical or preclinical development, indicating a … with regulatory guidelines and to support research and manufacturing quality control. …

Chemistry from 3D-printed objects

April 26, 2019
Author(s)
Matthew R. Hartings, Zeeshan Ahmed
… 3D printing technology has started to take hold as an enabling tool for … from the marriage of computer-aided design and additive manufacturing, 3D printing was originally intended to … have begun to take advantage of these capabilities in their own research. Certainly, the most prominent examples …

Identification of harmful and potentially harmful contaminants in tobacco smoke produced from low- and high-nicotine cigarette tobacco fillers

January 1, 2018
Author(s)
Walter B. Wilson, Lane C. Sander
… harmful and potentially harmful constituents (HPHCs) found in their tobacco products and tobacco smoke. Studies have … tar, nitrosamines, and polycyclic aromatic hydrocarbons. In 2012, the Food and Drug Administration (FDA) included in … Control Act, the National Institute of Standards and Technology has recently collaborated with the Center for …

SCIENCE-BASED METRICS FOR PRODUCT SUSTAINABILITY ASSESSMENT

September 30, 2012
Author(s)
Barbara C. Lippiatt
… compelling metrics, tools, and data supporting investments in sustainable products. Today’s marketplace is fraught with … upon which claims are based are not necessarily “green” in a science-based, life-cycle assessment (LCA) sense and (2) … widely available. The National Institute of Standards and Technology (NIST) is addressing these needs by developing …

A Combinatorial Study of Thin Film Process Variables Using Microhotplates

February 17, 2010
Author(s)
David L. Lahr, Joshua L. Hertz, Stephen Semancik
… a method of using an array of MEMS-based microhotplates in the high throughput optimization of a chemical vapor … element of the array, both during and after deposition. In the experiment described, SnO2 films were deposited on the … to the growth rate during chemical vapor deposition, the technology described is generally applicable for …

First Responder Thermal Imaging Cameras: Development of Performance Metrics and Test Methods

April 3, 2006
Author(s)
Francine K. Amon, Anthony P. Hamins
… becoming integral equipment for first responders for use in structure fires and other emergencies. Currently there are … (BFRL) at the National Institute of Standards and Technology (NIST) is developing performance evaluation … with test methods that accommodate the special conditions in which first responders use these instruments. First …

Ceramics Lubrication

July 1, 2003
Author(s)
Stephen M. Hsu, Richard S. Gates, D E. Deckman
… relatively hard and large as contrasted with wear debris in the metal systems. This eventually introduces large third bodies in the contact. The presence of third bodies intensifies the … Advances in Science and Technology …

Fire Suppression Efficiency Screening Method

December 3, 1997
Author(s)
Jiann C. Yang, Michelle K. Donnelly, William L. Grosshandler
… are designed for screening agents that can be delivered in the form of vapor. The search for alternatives to halons … classes of condensed-phase compounds that may be delivered in the form of droplets or aerosols. The objective of this … Partners in Environmental Technology …

1/N Feynman Machines as a Path to Ultraminiaturization

September 1, 1995
Author(s)
E C. Teague
… ever-smaller three-dimensional machines is considered in the nature of a thought experiment. A large array of … Micromachining Technology II … Proceedings of SPIE, Microlithography and Metrology in Micromachining, Michael T. Postek, Editor …

Simulation of temperature, stress and microstructure fields during laser deposition of Ti-6Al-4V

September 25, 2018
Author(s)
Supriyo Ghosh, Kevin S. McReynolds, Jonathan E. Guyer, Dilip K. Banerjee
… the solidification temperature and velocity fields in the melt pool and analyze the stress field and thermal distortions in the solidified part during the laser powder bed fusion … below the solidus temperature within the β columns results in α phase. The finite element simulated stress and strain …

Extending and Evaluating the Model-based Product Definition

December 22, 2017
Author(s)
Nathan W. Hartman, Jesse Zahner, Thomas D. Hedberg Jr., Allison Barnard Feeney
… Industrial practice is in a state of transition, away from the use of drawings … enterprise (MBE). Such an enterprise will find itself in a transitional state as well, moving away from paper-based … employ a model as a replacement for a technical drawing in specific workflows in the product lifecycle. Over the …

Survey and New Directions for Physics-Based Attack Detection in Control Systems

November 21, 2016
Author(s)
David Urbina, Jairo Giraldo, Alvaro Cardenas, Junia Valente, Mustafa Faisal, Niles O. Tippenhauer, Justin Ruths, Rick Candell, Heinrik Sandberg
… systems to detect attacks is a growing area of research. In its basic form a security monitor creates time-series … for an industrial control system and identifies anomalies in these measurements in order to identify potentially false control commands or … cybersecurity, smart grid, manufacturing, industrial control systems …

Applying Case-Based Reasoning to Mechanical Bearing Design

September 1, 2000
Author(s)
Xiaoli Qin, William Regli
… problem-solving experiences can be reused and learned from in solving new problems. This paper presents an overview of a CBR design system to assist human engineers in performing mechanical bearing design. It retrieves … case adaptability. Currently, our system has been tested in the rolling bearing domain. …

Thermal Error Modeling of Machine Tools Using Neural Networks

September 18, 1997
Author(s)
Alice V. Ling
… networks. Thermal displacement errors are not static in nature, i.e., the machine tool stores thermal effects … models by attempting to capture thermal memory effects in a model, various types of dynamic and static models were … Machine tool design, Manufacturing Equipment, Neural Network …
Displaying 5151 - 5175 of 13218
Was this page helpful?