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Displaying 28276 - 28300 of 143796

Promoting Model-Based Definition to Establish a Common Information Model

June 28, 2016
Author(s)
Shawn P. Ruemler, Kyle E. Zimmerman, Nathan W. Hartman, Thomas D. Hedberg Jr., Allison Barnard Feeney
The manufacturing industry is evolving and starting to use 3D models as the central knowledge artifact for product data and product definition, or what is known as Model-based Definition (MBD). The Model-based Enterprise (MBE) uses MBD as a way to

Reusing Metamodels and Notation with Diagram Definition

June 28, 2016
Author(s)
Conrad E. Bock, Maged Elaasar
It is increasingly common for language specifications to separate visual forms (concrete syntax) from underlying concepts (abstract syntax), enabling languages to define multiple visual forms for the same underlying concepts, and for the same visual form

Spin wave localization in tangentially magnetized films

June 28, 2016
Author(s)
Elena V. Tartakovskaya, Martha Pardavi-Horvath, Robert McMichael
We present an analytical description of localized spin wave modes that form in a parabolic field minimum in a thin ferromagnetic film. Mode profiles proportional to Hermite functions are eigen-functions of the applied field and exchange parts of the

Transient thermometry and high-resolution analysis of filamentary resistive switches

June 28, 2016
Author(s)
Jonghan Kwon, Chao-Yang Chen, Abhishek Sharma, Andrea Fantini, Malgorzata Jurczak, James A. Bain, Yoosuf Picard, Marek Skowronski, Andrew Herzing
We present data on the filament size and temperature distribution in Hf0.82Al0.18Ox-based Resistive Random Access Memory (RRAM) devices obtained by transient thermometry and high- resolution transmission electron microscopy (HRTEM). The thermometry shows

Automating Asset Knowledge with MTConnect

June 27, 2016
Author(s)
John L. Michaloski, Frederick M. Proctor, Sid Venkatesh, Sidney Ly, Martin Manning
In order to maximize assets, manufacturers should use real-time knowledge garnered from ongoing and continuous collection and evaluation of factory-floor machine status data. In discrete parts manufacturing, factory machine monitoring has been difficult

Demystifiying the Internet of Things

June 27, 2016
Author(s)
Jeffrey M. Voas
This short column introduces the need for a foundational science to the Internet of Things (IoT). It introduces the notion of primitives and elements, and their relationship to trustworthiness.

Metamorphic Testing for Cybersecurity

June 27, 2016
Author(s)
Tsong Yueh Chen, Fei-Ching Kuo, Wenjuan Ma, Willy Susilo, Dave Towey, Jeff Voas, Zhi Q. Zhou
Testing is a major approach for the detection of software defects, including security vulnerabilities. This article introduces metamorphic testing (MT), a relatively new testing method, and discusses how the new perspective of MT can help to conduct

Powder Bed Layer Geometry

June 27, 2016
Author(s)
Michael L. McGlauflin, Shawn P. Moylan
This paper investigates the measurement of machine performance errors associated with the powder bed geometry of a commercially available laser additive manufacturing (AM) machine. The methodology is based on existing ISO/ANSI standards as employed in

Residual Stresses in Flow Drill Screwdriving of Aluminium Alloy Sheets

June 27, 2016
Author(s)
Justin L. Milner, Thomas H. Gnaeupel-Herold, Jamie D. Skovron
With an increase in fuel economy standards and the need for reducing emissions set for the automotive sector, has increased the demand for lightweight vehicles. It is well known that the single heaviest component of a passenger vehicle is the body

Surrogate Gas Prediction Model as a Proxy for {D}14C-Based Measurements of Fossil Fuel-CO2

June 27, 2016
Author(s)
Kevin J. Coakley, Benjamin Miller, Stephen A. Montzka, Colm Sweeney, Ben Miller, John B. Miller
In contrast to CO2 produced in the atmosphere by all other sources, CO2 produced by the combustion of fossil fuels is devoid of 14C. Thus, the measured 14C: 12C isotopic ratio of atmospheric CO2 (and its associated derived {Δ}14C value) is an ideal tracer
Displaying 28276 - 28300 of 143796
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