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 45901 - 45925 of 74337

Flow Visualization of Polymer Processing Additive Effects

June 1, 2001
Author(s)
Kalman D. Migler, C Lavallee, M P. Dillon, S S. Woods, C L. Gettinger
Flow visualization was used to understand how polymer-processing additives (PPA) eliminate sharkskin in linear low-density polyethylene (LLDPE). A sapphire capillary die was used to image the coating of the PPA onto the die wall. Depth resolved optical

Generalization of a Two-Dimensional Micromagnetic Model to Nonuniform Thickness

June 1, 2001
Author(s)
Donald G. Porter, Michael J. Donahue
A two-dimensional micromagnetic model is extended to support simulation of films with non-uniform thickness. Zeeman and crystalline anisotropy energies are scaled by the local thickness, and exchange interaction between neighbor elements is scaled by the

Hard X-Ray Spectrometers for the National Ignition Facility

June 1, 2001
Author(s)
J Seely, C Back, R Deslattes, Lawrence T. Hudson, G Holland, P Bell, M Miller
A National Ignition Facility (NIF) core diagnostic instrument has been designed and will be fabricated to record x-ray spectra in the 1.1-20.1 keV energy range. The High-Energy Electronic X-Ray (HENEX) instrument has four reflection crystals with

High Performance Transition-Edge-Sensor Based Detectors

June 1, 2001
Author(s)
Gene C. Hilton, Steven Deiker, Kent D. Irwin, Sae Woo Nam, John M. Martinis, David A. Wollman
High performance detectors utilizing transition-edge sensors (TES) have been demonstrated for photon energies ranging from the infrared to the x-ray. In the soft x-ray band we have demonstrated the highest energy resolution yet achieved for any energy

High Temperature Lead-free Solder for Microelectronics

June 1, 2001
Author(s)
Frank W. Gayle, G Becka, J Badgett, G Whitten, TG Y. Pan, A Grusd, B B. Bauer, R Lathrop, J Slattery, I Anderson, J Foley, D Napp, J D. Mather, C Olson
This paper reports the result of a four-year industrial consortium effort to develop Pb-free solders for high temperature applications (up to 160 degrees c). Work included preliminary evaluation of 32 Sn-based alloys, a screening of the thermomechanical

History of the Symposium on Thermophysical Properties

June 1, 2001
Author(s)
William M. Haynes, Jan V. Sengers, R. T. Jacobsen, Daniel G. Friend
The Symposium on Thermophysical Properties represents a series of conferences that started in 1959 at Purdue University, which at the that time was the home of the Thermophysical Properties Research Center (TPRC), founded by Professor Yeram S. Touloukian

Industrial Autonomous Vehicle Project Report

June 1, 2001
Author(s)
Roger V. Bostelman, Maris Juberts, Sandor S. Szabo, Robert Bunch, John Evans
This report documents a National Institute of Standards and Technology (NIST) Intelligent Systems Division (ISD) effort to determine the status of Automatic Guided Vehicles (AGV's) in the United States with the goals of: 1) providing information to

Investigation of the Non-Uniqueness of the ITS-90 in the Range 660 C to 962 C

June 1, 2001
Author(s)
G T. Furukawa, Gregory F. Strouse
Preliminary results are reported on the non-uniqueness of the ITS-90 using high temperature SPRTs (HTSPRTs) in the range 660 C to 962 C. To achieve temperature stability and uniformity of the test HTSPRTs, the method employs the thermal isolation of the

LADAR Sensing Applications for Construction

June 1, 2001
Author(s)
Geraldine S. Cheok, William C. Stone
One potential breakthrough technology that stands to revolutionize construction surveying and status monitoring is known as laser range imaging. The device used to obtain the field data is known as a LADAR (Laser Distance and Ranging). With LADAR it is

Microhotplate Platforms for Chemical Sensor Research

June 1, 2001
Author(s)
Stephen Semancik, Richard E. Cavicchi, M C. Wheeler, J E. Tiffany, G Poirier, R M. Walton, John S. Suehle, B. Panchapakesan, D. E. DeVoe
This paper describes the development and use of microdevices and microarrays in chemical sensor research. The surface-micromachined microhotplate structure common within the various platforms included here was originally designed for fabricating
Displaying 45901 - 45925 of 74337
Was this page helpful?