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Search Publications

NIST Authors in Bold

Displaying 40551 - 40575 of 73963

Overview of NIST Metrology Development for the Semiconductor Industry

September 23, 2003
Author(s)
Stephen Knight
The National Institute of Standards and Technology metrology development for the semiconductor industry and its supporting infrastructure is a broad set of programs directed at many of the critical metrology needs. This paper will give examples of specific

Smart Machining Research at the National Institute of Standards and Technology

September 23, 2003
Author(s)
Kevin K. Jurrens, Johannes A. Soons, Robert W. Ivester
This paper presents an overview of collaborative research activities conducted by staff of the Manufacturing Engineering Laboratory at the National Institute of Standards and Technology to address the enabling metrology and standards infrastructure needed

A Phase Locked Frequency Comb from an All-Fibre Supercontinuum Source

September 22, 2003
Author(s)
Brian Washburn, Jeffrey W. Nicholson, Scott Diddams, M. Yan, C. G. Jorgensen, Nathan R. Newbury
A phase-locked, frequency comb in the near-infrared is presented. Self-referencing detection and stabilization of the carrier-envelope-offset frequency is demonstrated in an all-fibre supercontinuum source, based on an amplified, modelocked erbium-fibre

Basic Mass Metrology (Spanish Language)

September 22, 2003
Author(s)
Georgia L. Harris
Basic Mass Metrology CD-ROM training course (Spanish language). Course is designed to run after the CD is inserted in a Windows-based computer.

Phase Transitions Within the Isolated Polymer Molecule: Coupling of the Polymer Threading a Membrane Transition to the Helix-Random Coil, the Collapse, the Adsorption, and the Equilibrium Polymerization Transitions

September 22, 2003
Author(s)
Edmund A. DiMarzio, John J. Kasianowicz
The polymer threading a membrane transition (PTM), which is a first-order thermodynamic phase transition for an isolated linear polymer in the limit of infinite molecular weight, is coupled to the other 4 phase transitions of the isolated polymer molecule

Structure and Magnetic Properties of Electrodeposition Co on n-GaAs (001)

September 19, 2003
Author(s)
A X. Ford, John E. Bonevich, Robert D. McMichael, Mark D. Vaudin, Thomas P. Moffat
Co thin films have been electrodeposited on n-type (001) GaAs. The structure and texture of the films were investigated using x-ray diffraction (XRD) and transmission electron microscopy (TEM) while the magnetic properties were examined using a vibrating

Reliability-Based Method for Service Life Prediction of Materials

September 17, 2003
Author(s)
Christopher C. White, Jonathan W. Martin, S F. Weber, L Shultz
Standard test methods, such as ASTM C719, evaluate sealant performance though threshold test measurements. This method and its derivatives do not offer reliable predictions of in-service performance. This presentation will detail efforts to move away from

Scale Model Flames for Determining the Heat Release Rate from Burning Polymers

September 17, 2003
Author(s)
Gregory T. Linteris, I P. Rafferty
The utility of flame size for the assessment of the heat release rate of burning polymers has been studied. Six polymers were tested in the NIST cone calorimeter to determine their heat release rate, and their flame height, area, and volume. A reduced

Suppression of Cup-Burner Flames

September 17, 2003
Author(s)
F Takahashi, Gregory T. Linteris, V Katta
The unsteady suppression process of a laminar methane-air co-flow diffusion flame formed on a cup burner has been studied experimentally and numerically in normal earth gravity. The computation uses a time-dependent direct numerical simulation with

Some Issues Relating to Performance Evaluation of LADARs

September 16, 2003
Author(s)
Geraldine S. Cheok, William C. Stone, Christoph J. Witzgall
The use and scope of LADAR applications continues to expand as the technology matures. This growth is reflected in NIST's experience with research into the applications of LADARs for construction, manufacturing, and autonomous vehicle navigation. However

Terrain Characterization from Ground-Based LADAR

September 16, 2003
Author(s)
Christoph J. Witzgall, Geraldine Cheok, David E. Gilsinn
Test runs of Army Research Laboratory s (ARL) autonomous vehicle (Experimental Unmanned Vehicle, XUV) were followed by the acquisition of high resolution scans of selected regions of the test course. These scans were used to i) determine terrain features

Kinetic Isotope Effects in the Active Site of B-Subtilis Chorismate Mutase

September 15, 2003
Author(s)
S. E. Worthington, A. E. Roitberg, Morris Krauss
Kinetic Isotope Effects are determined for the enzyme-catalyzed Claisen rearrangement of chorismate to prephenate using computational methods. The reported kinetic isotope effects compare reasonably well with the few available experimental values. The

The Refprop Database for the Thermophysical Properties of Refrigerants

September 14, 2003
Author(s)
Mark O. McLinden, Eric W. Lemmon, Marcia L. Huber
Property databases are widely used for the design and analysis of refrigeration systems. Version 7 of the NIST REFPROP Reference Fluid Thermodynamic and Transport Properties) database is described. Compared with previous versions, the database includes

Interdiffision in Polystyrene and End-Functional Polystyrene Thin Films Near a Solid Surface

September 10, 2003
Author(s)
Chengqing C. Wang, Vivek M. Prabhu, Christopher L. Soles, B D. Vogt, Wen-Li Wu, Eric K. Lin, Sushil K. Satija
Polymer interdiffusion near the polymer/solid interface is studied using neutron reflectometry. Bilayers of hydrogenated polystyrene (hPS) and deuterated polystyrene (dPS) or hydrogenated dicarboxy terminated polystyrene (hPS(COOH)2) and dPS are prepared

High-Frequency Characteristics of Metal/Native-Oxide Multilayers

September 5, 2003
Author(s)
Geoffrey S. Beach, Thomas J. Silva, F. T. Parker, A. E. Berkowitz
The high-frequency magnetization dynamics of magnetically soft Co χFe 100-χ metal/native-oxide multilayers were studied as a function of alloy composition (10 less than or equal to} χ less than or equal to} 50) using a time-domain inductive technique. The

Large-Scale Modeling of Fire Suppression with Water Sprays

September 2, 2003
Author(s)
Kevin B. McGrattan
The mechanisms underlying fire suppression by water can bedivided into gas and solid phase phenomena. Numerical models ofthese phenomena are dependent on the level of detail given to thecombustion and the fuel pyrolysis processes.Presently, models of gas

Unwanted Accelerated Burning After Suppressant Delivery

September 2, 2003
Author(s)
Anthony P. Hamins, Kevin B. McGrattan, Glenn P. Forney
In a number of real-scale fire tests, accelerated or enhanced unwanted burning has been observed immediately following the delivery of a fire suppressant. The conditions under which this phenomena occurs, its potential for harm, and its effect on the

3-Dimensional Lineshape Metrology Using Small Angle X-ray Scattering

September 1, 2003
Author(s)
Ronald L. Jones, T J. Hu, Eric K. Lin, Wen-Li Wu, D M. Casa, G G. Barclay
The need for sub-nanometer precision metrology of dense patterns for future technology nodes challenges current methods based on light scatterometry, scanning electron microscopy (SEM), and atomic force microscopy (AFM). We provide results of initial tests
Displaying 40551 - 40575 of 73963
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