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Displaying 8026 - 8050 of 9859

Simulations of Microstructural Evolution: Anisotropic Growth and Coarsening

February 19, 2017
Author(s)
A R. Roosen, W Carter
Two-dimensional calculations of anisotropic growth and coarsening are illustrated. This model is intended to simulate the development of microstructure in materials like Silicon Nitride. The model is comprised of an ensemble of polygonal particles with

Wind Effects on Flame Spread and Ember Spotting Near a Structure

February 6, 2017
Author(s)
Kathryn M. Butler, Erik L. Johnsson, Marco G. Fernandez, Mariusz Zarzecki, Glenn P. Forney, Eric Auth
In wildland-urban interface (WUI) fires, combustible materials pose a potential threat to contiguous or nearby structures. Flame spread and firebrand spotting have been studied in a series of field experiments involving fences and mulch beds under a

Optimized Air-to-Refrigerant Heat Exchanger With Low-GWP Refrigerants

August 20, 2016
Author(s)
Piotr A. Domanski, Hong Hyun Cho
This paper presents an analytical evaluation of the performance of low-GWP refrigerants in a finned-tube evaporator used for residential cooling applications. The study employed an evolutionary-computation optimization module to examine the effect of a

XAFS Data Interchange: A single spectrum XAFS data file format

June 9, 2016
Author(s)
Bruce D. Ravel, M. Newville
We propose a standard data format for the interchange of XAFS data. The XAFS Data Interchange (XDI) standard is meant to encapsulate a single spectrum of XAFS along with relevant metadata. XDI is a text-based format with a simple syntax which clearly

Navigation Performance Evaluation for Automated Guided Vehicles

May 12, 2015
Author(s)
Roger V. Bostelman, Tsai Hong Hong, Geraldine S. Cheok
Automatic guided vehicles (AGVs), an industrial form of mobile robot, typically navigate using a central computer commanding AGV movement on predefined paths. Although, how well they follow these paths is less defined in research articles and their

SHREC'15: Range Scans based 3D Shape Retrieval

May 3, 2015
Author(s)
Afzal A. Godil
The objective of the SHREC'15 Range Scans based 3D Shape Retrieval track is to evaluate algorithms that match range scans of real objects to complete 3D mesh models in a target dataset. The task is to retrieve a rank list of complete 3D models that are of

A Semantic Framework for Modeling and Simulation of Cyber-physical Systems

December 30, 2014
Author(s)
Parastoo Delgoshaei, Mark Austin, Amanda Pertzborn
This paper describes a new semantic platform infrastructure for model-based systems engineering, requirements traceability, and system simulation and assessment of cyberphysical systems (CPSs). When fully developed this environment will support the

Performance evaluation of fingerprint open-set identification algorithms

September 22, 2014
Author(s)
Elham Tabassi, Craig I. Watson, Gregory P. Fiumara
We report performance of one-to-many fingerprint identification algorithms using one, two, four, eight or ten fingers for recognition. Performance is quantified in terms of recognition accuracy (false positive and false negative identification rate)

An Optimization Approach for Semantic-based XML Schema Matching

May 16, 2013
Author(s)
Jaewook Kim, Yun Peng, Nenad Ivezic, Jun H. Shin
We propose a novel solution for semantic-based XML schema matching, taking a mathematical programming approach. This method identifies the globally optimal solution for the problem of matching leaf nodes between two XML schema trees by reducing the tree-to

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

CMSD: A Model Supporting Manufacturing and Simulation Application Integration

September 20, 2010
Author(s)
Frank H. Riddick, Yung-Tsun T. Lee
Standard representations for key manufacturing entities could help reduce the costs associated with simulation model construction and data exchange between simulation and other software applications. This change would make the use of simulation technology

Optical Properties of Rod-like Metallic Nanostructures: Insight from Theory and Experiment

September 3, 2009
Author(s)
Jinsong Duan, Kyoungweon Park, Robert I. MacCuspie, Richard A. Vaia, Ruth Pachter
In this work, we combined synthesis of metal Au and Au-Ag core-shell NRs, of high-purity and for a broad range of NR aspect ratios, with theoretical prediction, in order to gain an understanding of the optical response. Self-assembled NRs were also

Standardization of Auxiliary Equipment for Next Generation CNC Machining

October 17, 2008
Author(s)
David Odendahl, Sid Venkatesh, John L. Michaloski, Frederick M. Proctor
This paper presents the recent work of the Open Modular Architecture Control (OMAC) Machine Tool Working Group to support STEP-NC, which is a new standard for the exchange of comprehensive Computer Numerical Control (CNC) manufacturing data. Because of the

Assessment of Access Control Systems

September 29, 2006
Author(s)
Chung Tong Hu, David F. Ferraiolo, David R. Kuhn
Access control is perhaps the most basic aspect of computer security. Nearly all applications that deal with financial, privacy, safety, or defense include some form of access control. In many systems access control takes the form of a simple password
Displaying 8026 - 8050 of 9859
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