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Displaying 32976 - 33000 of 74151

A Low Cost Digital Vibration Meter

April 1, 2007
Author(s)
William V. Payne, Jon Geist
This report describes the development of a low cost vibration amplitude sensor. The processes used to develop this sensor involve the use of Micro-Electronic and Mechanical Systems (MEMS) manufacturing techniques. The major mechanical element of the

A Novel Approach to Measuring Structural Similarity Between XML Documents

April 1, 2007
Author(s)
Boonserm Kulvatunyou, B Jeong, Dongjin Lee, Hyunbo Cho
Measuring structural similarity between XML documents has become a key component in various applications, including XML mining, schema matching, and web service discovery, among others. This paper presents a novel structural similarity measure

A Probabilistic Framework for Semantic Similarity and Ontology Mapping

April 1, 2007
Author(s)
Boonserm Kulvatunyou, Nenad Ivezic, Albert W. Jones, Yun Peng, Zhongli Ding, Rong Pan, Yang Yu, Hyunbo Cho
We propose a probabilistic framework to address uncertainty in ontology-based semantic integration and interopera-tion. This framework consists of three main components: 1) BayesOWL that translates an OWL ontology to a Bayes-ian network, 2) SLBN

An Ontology for the e-Kanban Business Process

April 1, 2007
Author(s)
Edward J. Barkmeyer Jr., Boonserm Kulvatunyou
Large automotive manufacturers, including automakers and the manufacturers of principal automotive subsystems, make their products in large volumes. This means that the demands on their suppliers are fairly predictable over a long term, but subject to

Cosmic Coincidences: Investigations for Neutron Background Suppression

April 1, 2007
Author(s)
Craig Heimbach
Two experimental investigations were made in order to reduce background counts in neutron detectors. Each investigation relied upon the fact that neutron background is largely due to cosmic ray interactions with the air and ground. The first attempt was to

Dissipation Factors of Fused-Silica Capacitors in the Audio Frequency Range

April 1, 2007
Author(s)
Yicheng Wang, Andrew D. Koffman, Gerald FitzPatrick
We describe dissipation factor measurements of 10 pF fused-silica capacitance standards from 50 Hz to 20 kHz, using a toroidal cross capacitor and a 10 pF nitrogen-filled capacitor as the references. The relative combined standard uncertainties are 0.56x10

High Amplitude AC Tests of 300-nm Damascene Interconnect Structures

April 1, 2007
Author(s)
David T. Read, Roy H. Geiss, Glenn Alers
The AC fatigue test technique, which uses cyclic joule heating to apply thermal cycles to thin-film structures, was applied to copper lines and vias in damascene dielectric structures on silicon substrates. Specimen chips with two different types of

Industry Case Studies in the Use of Immersive Virtual Assembly

April 1, 2007
Author(s)
Sankar Jayaram, Uma Jayaram, Young J. Kim, Charles Dechenne, Kevin W. Lyons, Craig Palmer, Tatsuki Mitsui
In this paper we report on two engineering case studies that have been conducted as part of a Virtual Assembly Technology Consortium. The objectives of the case studies were to determine if immersive virtual assembly capabilities allow industry assembly

Multiwall carbon nanotube absorber on a thin-film pyroelectric detector

April 1, 2007
Author(s)
John H. Lehman, Katie Hurst, Anne Dillon, A. M. Radojevic, R M. Osgood
Multiwall carbon nanotubes (MWNTs) were applied in a bulk layer to a pyroelectric film to increase the detector sensitivity nearly fourfold without a substantial penalty to the low-frequency response (4 to 100 Hz). In addition, the spectral sensitivity

Neutron Collimation With Microchannel Plates: Calibration of Existing Technology and Near

April 1, 2007
Author(s)
A S. Tremsin, Daniel S. Hussey, David L. Jacobson, Muhammad D. Arif, Robert Gregory Downing, W B. Feller, David F. Mildner
A new type of high performance and compact neutron collimator can be manufactured from Gd- or B-doped microchannel plates (MCPs). Structures only a few mm thick have very narrow rocking curves and high out-of-angle rejection ratios, as observed previously
Displaying 32976 - 33000 of 74151
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