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Displaying 45651 - 45675 of 74024

The Application of High-Speed CNC Machining to Prototype Production

June 1, 2001
Author(s)
Tony L. Schmitz, Matthew A. Davies, Brian S. Dutterer, J C. Ziegert
To reduce delays in the design and manufacture of a new part, rapid prototyping is often employed to minimize lead times. In this paper, the application of high-speed machining to the production of monolithic, metallic, functional prototypes is discussed

The IMS MISSION Architecture for Distributed Manufacturing Simulation

June 1, 2001
Author(s)
Charles R. McLean, Frank H. Riddick
This paper presents an overview of a neutral reference architecture for integrating distributed manufacturing simulation systems with each other, with other manufacturing software applications, and with manufacturing data repositories. Other manufacturing

The NIST Industrial Thermometer Calibration Laboratory

June 1, 2001
Author(s)
C D. Vaughn, Gregory F. Strouse
The NIST Industrial Thermometer Calibration (ITC) Laboratory provides calibrations of industrial thermometers over the range from 196 C to 550 C. The different types of thermometers include liquid-in-glass (LiG), thermistors, thermocouples (

The Role of Simulation in Strategic Manufacturing

June 1, 2001
Author(s)
Swee K. Leong, Charles R. McLean
Simulation technology holds tremendous promise for reducing costs, improving quality, and shortening the time-to-market for manufactured goods. Unfortunately, this technology still remains largely underutilized by industry today. This paper suggests

Thermodynamic Regulation of Actin Polymerization

June 1, 2001
Author(s)
P S. Niranjan, J G. Forbes, S C. Greer, J Dudowicz, Karl Freed, Jack F. Douglas
A Flory-Huggins-type lattice model of actin polymerization under equilibrium conditions is employed to analyze new spectroscopic measurements for the extent of actin polymerization diameter} as a function of temperature T, salt concentration [KC1], and the

Towards Multiscale Simulations of Filled and Nanofilled Polymers

June 1, 2001
Author(s)
S C. Glotzer, Francis W. Starr
We perform simulations of filled and nanofilled polymers using a combination of molecular and mesoscale simulation techniques. Molecular dynamics simulations provide insight into the effect of a nanoscopic filler on the structure, dynamics, and glass

Transient Application, Recirculating Pool Fire, Agent Effectiveness Screen. Final Report.

June 1, 2001
Author(s)
William L. Grosshandler, Anthony P. Hamins, Jiann C. Yang, Kevin B. McGrattan, Cary Presser
A three-year research effort has been conducted as part of the Next Generation Program (NGP) to develop a laboratory screening device suitable for predicting the behavior of halon alternatives in full-scale fire suppression experiments. Most of the work

Uncertainty of the NIST Low Frost-Point Humidity Generator

June 1, 2001
Author(s)
Gregory E. Scace, Joseph T. Hodges
The NIST Low Frost-point Humidity Generator (LFPG) produces water vapor gas mixtures with mole fractions from approximately 5 nmol/mol to 4 mmol/mol for research, calibration of transfer standards, and testing and development of new humidity

Using Ab Initio Calculations in the CALPHAD Environment

June 1, 2001
Author(s)
Benjamin P. Burton, N Dupin, S Fries, G Grimvall, A F. Guillermet, P Miodownik, W A. Oates, V Vinograd
Previous Ringberg working groups have discussed possible applications of first principles (FP) calculations to CALPHAD modeling, and have considered the problems from neglect of short range order (SRO) in CALPHAD Gibbs energy models [1]. Particular

Validation of Scanning Probe Moire Technique With the CTE of Gold

June 1, 2001
Author(s)
Elizabeth S. Drexler, T A. Winningham
Low expansion materials used in electronic devices require a tool that has a commensurate resolution for measuring deformation, such as the atomic force or scanning probe microscope (SPM). The SPM was evaluated for this purpose by conducting experiments

X-Ray Metrology by Diffraction and Reflectivity

June 1, 2001
Author(s)
D K. Bowen, R Deslattes
X-ray methods can provide measurements that, for certain parameters of great technological importance, are the most accurate and sensitive available. Their importance is likely to grow as layer thicknesses shrink, and as novel materials such as porous

Hysteresis in transport critical-current measurements of oxide superconductors

May 31, 2001
Author(s)
Loren F. Goodrich, Theodore C. Stauffer
We investigated magnetic hysteresis in transport critical-current (I c) measurement of Ag-matrix (B i,Pb) 2Sr 2Ca 2Cu 3O^10-x^ *Bi-2223) and AgMg-matrix Bi 2Sr 2CaCu 2O 8+X (Bi-2212) tapes. The effect of magnetic hysteresis on the measured critical current

Electronic Interconnection Standards for E-Commerce

May 28, 2001
Author(s)
Michael McLay
The IPC Data Transfer Solutions (DTS) committee has created the Electronic Interconnection Standards for E-Commerce (the IPC-2500 series) to support the industry need for standard communication protocols within an enterprise as well as between trading
Displaying 45651 - 45675 of 74024
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