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Displaying 1026 - 1050 of 2183

TOWARDS INDUSTRIAL IMPLEMENTATION OF EMERGING SEMANTIC TECHNOLOGIES

August 31, 2011
Author(s)
Paul W. Witherell
In this paper, we identify five main obstacles in the development of an industry-ready application of semantic knowledge management systems and discuss how each of these challenges can be addressed. These obstacles include the ease of new knowledge

A Prototype IEEE 1451.4 Smart Transducer Interface for Sensors and Actuators

August 19, 2011
Author(s)
Yuyin Song, David M. Westbrook, Kang B. Lee
Analog transducers (sensors or actuators) are widely used in industry. The Institute of Electrical and Electronics Engineers (IEEE) 1451.4 standard defines a mixed-mode communication protocol and the Transducer Electronic Data Sheet (TEDS) formats for

GaN Nanowires Grown by Molecular Beam Epitaxy

August 1, 2011
Author(s)
Kristine A. Bertness, Norman A. Sanford, Albert Davydov
The unique properties of GaN nanowires grown by molecular beam epitaxy are reviewed. These properties include the absence of residual strain, exclusion of most extended defects, long photoluminescence lifetime, low surface recombination velocity,and high

Large-Area Overhead Manipulator for Access of Fields

July 22, 2011
Author(s)
Jeffrey W. White, Roger V. Bostelman
Multi-axis, cable-driven manipulators have evolved over many years providing large area suspended platform access, programmability, relatively rigid and flexibly- positioned platform control and full six degree of freedom (DOF) manipulation of sensors and

Decision Support for Sustainable Manufacturing using Decision Guidance Query Language

July 19, 2011
Author(s)
Guodong Shao, Deogratias Kibira, Alexander Brodsky , Nathan Egge
Sustainability has become a very significant research topic as it impacts many different manufacturing industries. Therefore, the technologies for monitoring, analyzing, evaluating, and optimizing the sustainability performance indicators for manufacturing

Model Based Enterprise for Manufacturing

July 1, 2011
Author(s)
Simon P. Frechette
A Model-Based Enterprise (MBE) is an organization that applies modeling and simulation technologies to integrate and manage its technical and business processes related to production and product lifecycle support. By using product and process models to

A Roadmap for STEP-NC Enabled Interoperable Manufacturing

June 17, 2011
Author(s)
Fiona Zhao, Frederick M. Proctor, Martin Hardwick, Sid Venkatesh, David Odendahl, Xun Xu
STEP-NC is the result of a ten-year international effort to replace the RS274D (ISO 6983) G and M code standard with a modern associative language. The new standard connects CAD design data to CAM process data so that smart applications can understand both

Tool Temperatures in Orthogonal Cutting of Alloyed Titanium

June 17, 2011
Author(s)
Robert W. Ivester
This paper presents infrared-based measurements and analysis of cutting tool temperatures for orthogonal machining of alloyed titanium. High-speed infrared video provided the basis for measurement of cutting tool temperature distribution as reported here

PDH-locked, frequency-stabilized cavity ring-down spectrometer

June 16, 2011
Author(s)
Joseph T. Hodges, A. Cygan, Piotr Maslowski, Katarzyna E. Bielska, S. Wojtewicz, J. Domyslawska, Hisashi Abe, R.S. Trawinski, R. Ciurylo
We describe a high sensitivity and high spectral resolution laser absorption spectrometer based upon the frequency-stabilized cavity ring-down spectroscopy (FS-CRDS) technique. We used the Pound-Drever-Hall (PDH) method to lock the probe laser to the high

Guide to Industrial Control Systems (ICS) Security - Supervisory Control and Data Acquisition (SCADA) systems, Distributed Control Systems (DCS), and other control system configurations such as Programmable Logic Controllers (PLC)

June 7, 2011
Author(s)
Keith A. Stouffer, Joseph A. Falco, Karen A. Scarfone
NIST Special Publication (SP) 800-82, Guide to Industrial Control Systems (ICS) Security, provides guidance on how to secure Industrial Control Systems (ICS), including Supervisory Control and Data Acquisition (SCADA) systems, Distributed Control Systems

Traceable Calibration of a Critical Dimension Atomic Force Microscope

June 6, 2011
Author(s)
Ronald G. Dixson, Ndubuisi G. Orji, Craig D. McGray, Jon C. Geist
The National Institute of Standards and Technology (NIST) has a multifaceted program in atomic force microscope (AFM) dimensional metrology. One component of this effort is a custom in-house metrology AFM, called the calibrated AFM (C-AFM). The NIST C-AFM

Scanning the Issue Smart Grid: The Electric Energy System of the Future

June 1, 2011
Author(s)
Hamid Gharavi
This is an editorial article for a special issue on smart grid. The main objective is to report on some, if not all, of smart grid future technical challenges. While acknowledging its limited coverage, this issue offers a wide range of interesting

Ontological Behavior Modeling

May 20, 2011
Author(s)
Conrad E. Bock, James Odell
This article gives an example of improving the effectiveness of behavior modeling languages using ontological techniques. The techniques are applied to behaviors in the Unified Modeling Language (UML), using the logical meanings for classification
Displaying 1026 - 1050 of 2183
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