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.
Robert Allen, Srinivas Nidamarthi, S P. Regalla, Ram D. Sriram
We report on our experience using an Internet-based collaborative environment to enhance the design and manufacturing process of a custom-designed artifact...
John M. Libert, Charles D. Fenimore, Peter Roitman
The investigation examines two methodologies by which to control the impairment level of digital video test materials. Such continuous fine-tuning of video...
Margaret C. Kline, Janette W. Redman, David L. Duewer, D J. Reeder
The National Institute of Standards and Technology (NIST) has provided a number of educational interlaboratory exercises to the forensic community. The recent...
This paper proposes a standardized representation of function for use by the research community, industry, and eventually commercial software vendors. This...
Automation for product development and manufacturing is changing to take advantage of the recent expansion of the Internet and the computing technologies...
This paper presents a mapping of a standardized representation of a function, consisting of schemata for functions and associated flows. Along with taxonomies...
This paper presents an approach to support computer-aided conceptual design of mechatronic assemblies in a collaborative, multi-user environment. We describe a...
Shaw C. Feng, Gordon A. Shaw, Walter W. Nederbragt, Serge Kaing, Ram D. Sriram
This paper describes recent developments in the Design and Process Planning Integration (DPPI) project at the National Institute of Standards and Technology...
David Flater, Edward J. Barkmeyer Jr., Evan K. Wallace
In a distributed, object-oriented, hierarchical shop control system, there are many ways of organizing the interactions between supervisory controllers and...
In this paper, we present the results of spectroscopic ellipsometry (SE) studies of Ta 20 5 films on Si. Based on these results, we have experimentally...
We have developed a frequency-domain phase shift system for measuring the zero-dispersion wavelength of multimode optical fibers under overfilled launching...
Kristine A. Bertness, S. P. Hays, Robert K. Hickernell
We have modifed a normal-incidence optical reflectance spectroscopy system to allow rapid switching between the measurement of sample reflectance and sample...
The development of dense wavelength division multiplexed systems at wavelengths between 1300 and 1600 nm has created a demand for wavelength references...
As part of an effort to characterize the uncertainties associated with temperature measurements in fire environments, models of bare bead, single-shielded...
A new method has been developed to calibrate tristimulus colorimeters for high accuracy color measurements. Instead of traditional lamp standards, modern, high...
This was an extended abstract prepared for inclusion in the Microscopy & Microanalysis '99 Proceedings. It is a summary of Observation of Antiparallel Magnetic...
Based on concerns about indoor air quality and trends towards tighter envelope construction, there has been increasing interest in mechanical ventilation of...
There is increasing interest worldwide in the use of performance standards for removing barriers to the acceptance of housing innovation.The use of performance...
The degree of self-desiccation in field concrete depends on the availability of external water to replace that consumed due to the chemical shrinkage that...
Dale P. Bentz, Paul E. Stutzman, C Haecker, S Remond
Scanning electron microscopy and X-ray imaging techniques have been developed for imaging the complex microstructure of cement-based materials such as cement...
A critical step in selecting the most appropriate repair strategy for a distressed concrete structure is to determine the corrosion status of reinforcing bars...
The following brief essay attempts to summarize some of my remarks at the closing session of X- 99. The three sections below include a well-deserved...