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Displaying 4776 - 4800 of 13217

UML 2 Composition Model

October 1, 2004
Author(s)
Conrad E. Bock
… The composition model in the Unified Modeling Language, version 2, is a major … between parts at the same level of decomposition, in addition to the usual part-whole associations. This … Journal of Object Technology …

Sooting Behavior of Ethanol Droplet Combustion at Elevated Pressures Under Microgravity Conditions

September 1, 2004
Author(s)
B D. Urban, K Kroenlein, A Kazakov, F L. Dryer, A Yozgatligil, M Y. Choi, Samuel Manzello, K O. Lee, R Dobashi
… Liquid ethanol is widely used in practical fuels as a means to extend petroleum-derived … be added to diesel fuel to reduce particulate emissions. In this cursory study, the combustion of small ethanol droplets in microgravity environments was observed to investigate …

Nanotechnology in Integrative Systems: Introduction to Integrative Systems

August 17, 2004
Author(s)
Michael Gaitan
… the onboard global positioning navigation system mounted in your dashboard and make a call using your mobile phone … feeling secure with your automatically controlled airbags in case of an accident. Such capabilities are what … Nanoscale Science and Technology … Nanotechnology in Integrative Systems: Introduction to Integrative Systems …

Comparison of Fault Classes in Specification-Based Testing

June 1, 2004
Author(s)
Vadim Okun, Paul E. Black, Y Yesha
… hierarchy applies to arbitrary expressions, not just those in disjunctive normal form. We also use the technique to … To demonstrate broad applicability, we compare faults in practical situations and analyze previous results. In particular, using our technique, we show that the basic …

Tool Length-Dependent Stability Surfaces

April 20, 2004
Author(s)
T L. Schmitz, J C. Ziegert, Timothy J. Burns, Brian S. Dutterer, W R. Winfough
… on tool overhang length, due to the corresponding changes in the system dynamics with overhang. The tool point … using Receptance Coupling Substructure Analysis (RCSA). In this method, a model of the tool, which includes overhang … at the tool point can then be predicted for variations in tool overhang length. Using the graphs developed in this …

Source Strengths of Ultrafine and Fine Particles Due to Cooking With a Gas Stove

April 1, 2004
Author(s)
L A. Wallace, Steven Emmerich, Cynthia H. Reed
… a full range of particle sizes produced during cooking. In this study, particles in 124 size bins from 0.01 mm to 2.5 mm were measured continuously over two years in an occupied home. Tracer gas measurements were made every … Environmental Science & Technology …

UML 2 Activity and Action Models, Part 5: Partitions

April 1, 2004
Author(s)
Conrad E. Bock
… This is the fifth in a series introducing the activity model in the Unified Modeling Language, version 2 (UML 2), and how … a way of grouping actions that have some characteristic in common. In particular, they can relate actions to classes … Journal of Object Technology …

Narrow-band measurement of differential group delay by a six-state RF phase-shift technique: 40 fs single-measurement uncertainty

February 1, 2004
Author(s)
Paul A. Williams, Jonathan D. Kofler
… We describe in detail our implementation of a modulation phase shift … delay (DGD) and the principal states of polarization (PSP) in optical fibers and components. Out MPS technique involves … the uncertainty contribution of multiple DGD elements in series. … Journal of Lightwave Technology …

Combining Information from Independent Similar Studies Using Random Effect Model

January 1, 2004
Author(s)
Raghu N. Kacker
… (2000) show that the Paule and Mandel estimate is optimal in the sense of being the restricted maximum likelihood … The method of Paule and Mandel is universally optimal in generalized (weighted) least-squares theory. We show that … suggests a second non-interative method. We include it in the pool for comparison. We compare the methods of …

UML 2 Activity and Action Models, Part 3: Control Nodes

January 1, 2004
Author(s)
Conrad E. Bock
… This is the third in a series introducing the activity model in the Unified Modeling Language, version 2 (UML 2), and how … article addressed the execution characteristics of actions in general, and additional functionality of actions that … Journal of Object Technology …

Dechlorination of Polychlorinated Biphenyls in Industrial Transformer Oil by Radiolytic and Photolytic Methods

December 1, 2003
Author(s)
C G. Jones, Joseph Silverman, M I. Al-Sheikhly, Pedatsur Neta, Dianne L. Poster
… is confirmed by determining the concentrations of PCBs in the oils using liquid and gas chromatography. Transformer … The initial radiolytic yield for dechlorination is higher in 1/1 oil/TEA mixtures (0.50 mol J -1 ) but the … photolysis also leads to the dechlorination of PCBs in transformer oils. Photolytic dechlorination of the …

Nonlinear Microwave Response of MgB 2 Thin Films

December 1, 2003
Author(s)
James C. Booth, Kenneth Leong, S. Y. Lee, J. H. Lee, B. Oh, H. N. Lee, S. H. Moon
… promise for a number of different electronic applications. In order to evaluate the suitability of this new material for … determine the relevant pair-breaking current density in our MgB 2 thin films by combining results from our linear … low reduced temperatures the pair-breaking current density in MgB 2 thin films rivals that in YBCO. …
Displaying 4776 - 4800 of 13217
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