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Displaying 42651 - 42675 of 73829

Application of Self-Assembled Technology to Probe Fiber Matrix-Adhesion

October 1, 2002
Author(s)
E Feresenbet, D T. Raghavan, Gale A. Holmes
Adhesion at the fiber-matrix interface of composite is often related to a combination of factors such as mechanical interlocking, physico-chemical interactions, and chemical bonding of the fiber-matrix interphase region. We demonstrate the use of (self

Applications Panel: Agents Applied to Autonomous Vehicles

October 1, 2002
Author(s)
Craig I. Schlenoff
In order to make an unmanned vehicle drive truly autonomously, many different software components are needed. Each of these components is tasked with providing a particular function that is necessary to accomplish the ultimate goal of autonomous driving

Atomic Force Microscopy of Semiconductor Line Edge Roughness

October 1, 2002
Author(s)
N G. Orji, Jayaraman Raja, Theodore V. Vorburger
Over the last two decades the width of patterned lines on semiconductor devices has continuously decreased. Based on technology trends predicted by the International Technology Roadmap for Semiconductors (ITRS), the linewidth of isolated gate lines on

BACnet Today- Significant new features and future enhancements

October 1, 2002
Author(s)
Steven T. Bushby, H M. Newman
The BACnet communication protocol standard is maintained by a standing committee of the American Society of Heating, Refrigerating, and air-conditioning Engineers under continuous maintenance procedures. Since its original publication in 1995 there have

Carbonyl Sulfide: A Review of its Chemistry and Properties

October 1, 2002
Author(s)
P D. Svoronos, Thomas J. Bruno
A number of years have elapsed since the last comprehensive review of the chemical properties of carbonyl sulfide (COS), with specific attention to the tendency of this fluid to undergo hydrolysis. Since that time, some important issues have arisen

Certification of Standard Reference Material 1473b, Low Density Polyethylene Resin

October 1, 2002
Author(s)
J R. Maurey, Carl R. Schultesiz, William R. Blair, Kathleen M. Flynn
The melt flow rate of Standard Reference Material (SRM) 1473b, a polyethylene resin, was determined to be 1.13 g/10 min at 190 degrees C under a load of 2.16 kg using the ASTM Method D 1238-00. The average results from 48 determinations on samples with a

Chapter 13: Economic Analysis and Green Buildings

October 1, 2002
Author(s)
S Fuller
Building economics, value engineering, and cost engineering are the three main fields that explicitly include an economic evaluation in building-related project analyses. The common theme that ties the three disciplines together is that each is concerned

Confirmation of Interstellar Acetone

October 1, 2002
Author(s)
Lewis E. Snyder, Francis J. Lovas, David Mehringer, Nina Yanti Miao, Y J. Kuan, J M. Hollis
We present new observations of interstellar acetone [(CH3)(2) CO] from both the NRAO 12 m and the BIMA array. We report NRAO 12 m detections of 13 new acetone emission features that can be assigned to 20 acetone transitions. These assignments are based on

Cost Effective Use of Formal Methods in Verification and Validation Foundations

October 1, 2002
Author(s)
D. Richard Kuhn, Ramaswamy Chandramouli, R W. Butler
Formal methods offer the promise of significant improvements in verification and validation, and may be the only approach capable of demonstrating the absence of undesirable system behavior. But it is widely recognized that these methods are expensive, and

Cost Effective Uses of Formal Methods in Verification and Validation

October 1, 2002
Author(s)
D. Richard Kuhn, Ramaswamy Chandramouli
Formal methods offer the promise of significant improvements in verification and validation, and may be the only approach capable of demonstrating the absence of undesirable system behavior. But it is widely recognized that these methods are expensive, and

Dynamic Analysis of Sliding Contacts at Head-Disk Interface

October 1, 2002
Author(s)
Tze J. Chuang, Stephen M. Hsu
As magnetic data storage technology moves towards higher areal data density with higher rotational speeds and lower flying heights, the propensity of severe sliding contacts at the head-disk interface is bound to increase. The tribological performance of

Elastic Properties of Hardness Coatings Using Surface Acoustic Wave Spectroscopy

October 1, 2002
Author(s)
Donna C. Hurley, A J. Richards, Vinod K. Tewary, A Bendavid, P J. Martin
Surface acoustic wave (SAW) spectroscopy is a nondestructive way to determine the properties of thin films. Plane-wave SAWs are generated by a line-focused, pulsed laser and detected by a Michelson interferometer. Phase velocity dispersion relations over

Electromagnetic Coupling on an Atomic Scale

October 1, 2002
Author(s)
Javier Aizpurua, G Hoffman, S P. Apell, R Berndt
Light emission from a scanning tunneling microscope is used to investigatethe electromagnetic coupling (EMC) of a metal tip and a metal sample.Subatomic scale modifications of the tip-sample region cause spectralshifts of the fluorescence as demonstrated

Embedded Real-Time Linux For Cable Robot Control

October 1, 2002
Author(s)
Frederick M. Proctor, William P. Shackleford
Linux is a version of the Unix operating system distributed according to the open source model. Programmers are free to adapt the source code for their purposes, but are required to make their modifications or enhancements available as open source software

Finite Element and Plate Theory Methods for Modeling Acoustic Emission Waveforms

October 1, 2002
Author(s)
W H. Prosser, Marvin A. Hamstad, John M. Gary, Agnes O'Gallagher
A comparison was made between two approaches to predict acoustic emission waveforms in thin plates. A normal mode solution method for Mindlin plate theory was used to predict the flexural plate mode response to a point source, step-function load, applied

High Resolution Spectroscopic Studies of 1-(1-Naphthyl)ethylamine in S 0 and S 1 : Exploring the Dependence of Circular Dichroism on Conformational Structure

October 1, 2002
Author(s)
David F. Plusquellic, R J. Lavrich, T Petralli-Mallow, S Davis, T M. Korter, R D. Suenram
Rotationally-resolved spectra of gas-phase samples of 1-(1-naphthyl) -ethylarnine (NEA) and amine deuterated forms have been obtained in the microwave and ultraviolet regions, with the isotopomers initially prepared in their zero-pointvibrational levels by
Displaying 42651 - 42675 of 73829
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