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Displaying 22951 - 22975 of 73741

Verification and Validation Process of a Fire Model

June 18, 2012
Author(s)
Kevin B. McGrattan, Simo A. Hostikka
Fire simulation tools are used frequently in the fire safety assessment of nuclear and other industrial installations. They are also used in the context of probabilistic fire risk assessment as deterministic models providing the relation between the random

A New Convexity Measurement for 3D Meshes

June 16, 2012
Author(s)
Afzal A. Godil, Zhouhui Lian
This paper presents a novel convexity measurement for 3D meshes. The new convexity measure is calculated by minimizing the ratio of the summed area of valid regions in a mesh’s six views, which are projected on faces of the bounding box whose edges are

A COMPUTER AIDED SYSTEM FOR SUSTAINABILITY ANALYSIS FOR DIE-CASTING PROCESS

June 15, 2012
Author(s)
Jatinder Madan, Mahesh Mani, Princepal Singh, Amrik Singh
Currently available sustainability analysis systems for the die-casting process primarily depend on the material properties and do not account for process information. As a result they are unable to assess or compare the sustainability of parts made using

Generation of a 6602100 nm laser frequency comb based on an erbium fiber laser

June 15, 2012
Author(s)
Gabriel G. Ycas, Steve Osterman, Scott A. Diddams
We present a laser frequency comb based upon a 250 MHz mode-locked erbium fiber-laser that spans more than 300 terahertz of bandwidth, from 660 nm to 2000 nm. Broad bandwidth is achieved by making use of Er:fiber and Yb:fiber amplifiers and supercontinuum

Reverberation Chamber Measurement Correlation

June 15, 2012
Author(s)
Ryan J. Pirkl, Catherine A. Remley, Christian S. Lotback Patane
This contribution evaluates the utility of several different metrics for studying reverberation chamber measurement correlation. Metrics considered are the autocovariance, the correlation matrix, and two metrics based upon the entropy of the data

Grand Challenges of Measurement Science with Big Data

June 14, 2012
Author(s)
Peter Bajcsy
This presentation discusses Grand Challenges of Measurement Science with Big Data. It illustrates the difference between Measurement Science with Little Data and Big Data in the domain of cell biology and microscopy image observations.

Magnetic Phase Diagram of Magnetoelectric LiMnPO 4

June 14, 2012
Author(s)
Rasmus Toft-Petersen, Niels H. Andersen, Haifeng Li, Jiying Li, Wei Tian, Sergey L. Bud'ko, Thomas B. S. Jensen, Christof Niedermayer, Mark Laver, Oksana Zaharko, Jeffrey W. Lynn, David Vaknin
The nature of the spin-flop (SF) transition in the magnetoelectric quasi-2D Heisenberg system LiMnPO 4 is studied in fields applied along the a axis. A refinement of the magnetic structure using neutron diffraction data in the SF phase reveals that the

VISCOSITY AND DENSITY OF CuO NANOLUBRICANT

June 14, 2012
Author(s)
Mark A. Kedzierski
This paper presents liquid kinematic viscosity and density measurements of a synthetic polyolester based copper (II) oxide (CuO) nanoparticle dispersion (nanolubricant) at atmospheric pressure for a temperature range from approximately 288 K to 318 K. The

Correlation effects on transition probabilities in Mo vi

June 13, 2012
Author(s)
Charlotte F. Fischer
The effect of correlation on transitions in Mo vi from 4p64d 2D and 4p65s 2S to 4p64f, 4p65p, 4p65f, 4p54d2 with J = 1/2 - 7/2 is investigated. Non-relativistic correlation studies show the near degeneracy of 4p54d2(3F) 2Fo and 4p54d2(1G) 2Fo configuration

Limitations of X-ray reflectometry in the presenceof surface contamination

June 13, 2012
Author(s)
Donald A. Windover, David L. Gil
Intentionally deposited thin films exposed to atmosphere often develop unintentionally deposited few monolayer films of surface contamination. This contamination arises from the diverse population of volatile organics and inorganics in the atmosphere. Such

Technology Readiness Levels for Randomized Bin Picking

June 13, 2012
Author(s)
Jeremy A. Marvel, Roger D. Eastman, Geraldine S. Cheok, Kamel S. Saidi, Tsai Hong Hong, Elena R. Messina
A proposal for the utilization of Technology Readiness Levels to the application of unstructured bin picking is discussed. A special session was held during the 2012 Performance Metrics for Intelligent Systems workshop to discuss the challenges and

Coexistence and Competition of the Short-Range Incommensurate Antiferromagnetic Order with Superconductivity in BaFe 2-x Ni x As 2

June 12, 2012
Author(s)
Huiqian Luo, Rui Zhang, Mark Laver, Zahra Yamani, Meng Wang, Xingye Lu, Miaoyin Wang, Yanchao Chen, Shiliang Li, Sung Chang, Jeffrey W. Lynn, Pengcheng Dai
Superconductivity in the iron pnictide develops near antiferromagnetism, and the antiferromagnetic (Af) phase appears to overlap with the superconducting phase in some materials such as BaFe 2-x(Co,NI) xAs 2. Here we use neutron scattering to demonstrate
Displaying 22951 - 22975 of 73741
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