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Displaying 46176 - 46200 of 73994

Technical Activities 2000 - Chemical Science and Technology Laboratory

February 1, 2001
Author(s)
Hratch G. Semerjian, W Koch
This report summarizes the research and services provided by the Chemical Science and Technology Laboratory of the National Institute of Standards and Technology for Fiscal Year 2000. The report includes: a general overview of the laboratory's activities

Texture Plus

February 1, 2001
Author(s)
Mark D. Vaudin
TexturePlus is a Win '95 or later software package that analyzes crystallographic texture in bulk and thin film specimens. The software analyzes data obtained on a powder x-ray diffractometer. The required data include an x-ray theta-2theta scan of a Bragg

The Ground and First Excited Torsional States of Acetic Acid

February 1, 2001
Author(s)
Vadim V. Ilyushin, E A. Alekseev, S K. Dyubko, S V. Podnos, I Kleiner, L Margules, G Wlodarczak, J Demaison, J Cosleou, B Mate, E N. Karyakin, G Y. Golubiatnikow, Gerald T. Fraser, R D. Suenram, Jon T. Hougen
A global fit of microwave and millimeter wave rotational transitions in the ground and first excited torsional states (vt = 0 and 1) of acetic acid (CH3COOH) is reported, which combines older measurements from the literature with new measurements from

The Influence of Mineral Admixtures on the Rheology of Cement Paste and Concrete

February 1, 2001
Author(s)
Chiara F. Ferraris, K H. Obla, R Hill
Rheological tests on cement paste were used to successfully select the type and dosage of mineral admixtures that improved concrete workability. Among the six different mineral admixtures tested, the ultra fine fly ash (UFFA), was determined to give the

Transition Probabilities and Atomic Lifetimes

February 1, 2001
Author(s)
Wolfgang L. Wiese
The Data Center on Atomic Transition Probabilities at the U.S. National Institute of Standards and Technology (NIST), formerly the National Bureau of Standards (NBS), has critically evaluated and compiled atomic transition probability data since 1962 and

Two Dimensional Phase Diagram of Decanethiol on Au(111)

February 1, 2001
Author(s)
G Poirier, W P. Fitts, J M. White
sed on variable temperature ultrahigh vacuum scanning tunneling microscopy data, we propose a two dimensional phase diagram of monolayerdecanethiol on Au(111). Four triple point temperatures were determined: T1 at 27 C, T2 at 33 C, T3 at 35 C, and T4 at 56

When Worlds Collide - Interactions Between the Virtual and the Real

February 1, 2001
Author(s)
Sanford P. Ressler, Brian Antonishek, Quandou (. Wang, Afzal A. Godil, Keith A. Stouffer
This paper explores issues surrounding interaction with virtual (computer generated) objects which are interfaced to real world devices. In addition a virtual room corresponding to a real physical room has been created to allow collaborative meetings with

XML Representation of EXPRESS Models and Data

February 1, 2001
Author(s)
Joshua Lubell, Edward J. Barkmeyer Jr.
EXPRESS is a modeling language for use in engineering data exchange standards that combines the entity-attribute-relationship and object modeling paradigms. This paper discusses some issues we encountered when attempting to represent EXPRESS models and

A Visualization Approach to Dealing with Log Data

January 29, 2001
Author(s)
Emile L. Morse, Michelle P. Steves
The CollabLogger is a visual tool that supports usability analyses of human-computer interaction in a team environment. Participants in our computer-mediated activity were engaged in a small-scale manufacturing testbed project. Interactions of the group

Energy Dispersive X-ray Analysis using a Microcalorimeter Detector

January 29, 2001
Author(s)
W. Harris, L. Le Tarte, H. Bakhru, W. Gibson, D. Wu, Robert E. Geer, David A. Wollman
Energy dispersive X-ray analysis (EDX) is widely used within the semiconductor community for chemical analysis and identification of features observed in scanning electron microscopy images. While this technique provides valuable information for defect

Abstracts for the MSEL Assessment Panel, March 2001

January 26, 2001
Author(s)
Leslie E. Smith, Alamgir Karim, Leonid A. Bendersky, C Lu, J J. Scott, Ichiro Takeuchi, Kathleen M. Flynn, Vinod K. Tewary, Davor Balzar, G A. Alers, Stephen E. Russek, Charles C. Han, Haonan Wang, William E. Wallace, Daniel A. Fischer, K Efimenko, Wen-Li Wu, Jan Genzer, Joseph C. Woicik, Thomas H. Gnaeupel-Herold, Henry J. Prask, Charles F. Majkrzak, Norman F. Berk, John G. Barker, Charles J. Glinka, Eric K. Lin, Ward L. Johnson, Paul R. Heyliger, David T. Read, R R. Keller, J Blendell, Grady S. White, Lin-Sien H. Lum, Eric J. Cockayne, Igor Levin, C E. Johnson, Maureen E. Williams, Gery R. Stafford, William J. Boettinger, Kil-Won Moon, Daniel Josell, Daniel Wheeler, Thomas P. Moffat, W H. Huber, Lee J. Richter, Clayton S. Yang, Robert D. Shull, R A. Fry, Robert D. McMichael, William F. Egelhoff Jr., Ursula R. Kattner, James A. Warren, Jonathan E. Guyer, Steven P. Mates, Stephen D. Ridder, Frank S. Biancaniello, D Basak, Jon C. Geist, Kalman D. Migler
Abstracts relating to research and development in the NIST Materials Science and Engineering Laboratory (MSEL) are presented for a poster session to be presented to the 2001 MSEL Assessment Panel.

The FLUD format: Logging Usability Data from Web-based Applications

January 24, 2001
Author(s)
John V. Cugini
This paper presents a proposed format for representing the behavior of users as they interact with a Web-based application. The captured log data can be valuable for analyzing and improving the usability of such applications. The background and motivation

Recent Advances in Flame Retardant Polymer Nanocomposites

January 22, 2001
Author(s)
Jeffrey W. Gilman, Takashi Kashiwagi, A B. Morgan, Richard H. Harris Jr., L D. Brassell, W H. Awad, Rick D. Davis, L Chyall, T E. Sutto, Paul C. Trulove, H DeLong
A new approach to address the ever increasing demand for higher performance flame retarded products has recently focused on use of mica-type clays nano-dispersed in commodity polymers. These "nanocomposites" exhibit the unusual combination of reduced

Coercivity in Exchange-Bias Bilayers

January 18, 2001
Author(s)
Mark D. Stiles, Robert D. McMichael
Simulations of magnetic reversal in polycrystalline exchange-bias bilayers exhibit two contributions to the enhanced coercivity found in exchange-bias systems, one due to inhomogeneous reversal and and the other to irreversible transitions in the
Displaying 46176 - 46200 of 73994
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