NASA-sponsored conferences and workshops highlight technological advances and research being conducted at NASA centers, universities, and Government-funded institutions.
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Report Number: NASA/CP-2007-213468; A-070003; TH-061
Title (Incl. Subtitle): Intelligent Motion and Interaction Within Virtual Environments
Publication Date: June 15, 2007
Authorized Users: Publicly available
Author: Ellis, Stephen R.; Slater, Mel; Alexander, Thomas
Author Affil.: NASA Ames Research Center; University Coll.; Research Inst. for Communication, Information Processing and Ergonomics
Abstract: What makes virtual actors and objects in virtual environments seem real? How can the illusion of their reality be supported? What sorts of training or user-interface applications benefit from realistic user-environment interactions? These are some of the central questions that designers of virtual environments face. To be sure simulation realism is not necessarily the major, or even a required goal, of a virtual environment intended to communicate specific information. But for some applications in entertainment, marketing, or aspects of vehicle simulation training, realism is essential. The following chapters will examine how a sense of truly interacting with dynamic, intelligent agents may arise in users of virtual environments. These chapters are based on presentations at the London conference on Intelligent Motion and Interaction within a Virtual Environments which was held at University College, London, U.K., 15-17 September 2003.
Price Code: A09
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Document ID (CASI): 20070038349
Financial Sponsor: NASA Ames Research Center
Report Number: NASA/CP-2007-214667; E-15781
Title (Incl. Subtitle): Minnowbrook I: 1993 Workshop on End-Stage Boundary Layer Transition
Publication Date: March 2007
Authorized Users: Publicly available
Author: LaGraff, John E.
Author Affil.: NASA Glenn Research Center
Abstract: This volume contains materials presented at the Minnowbrook I-1993 Workshop on End-Stage Boundary Layer Transition, held at the Syracuse University Minnowbrook Conference Center, New York, from August 15 to 18, 1993. This volume was previously published as a Syracuse University report edited by John E. LaGraff. The workshop organizers were John E. LaGraff (Syracuse University), Terry V. Jones (Oxford University), and J. Paul Gostelow (University of Technology, Sydney). The workshop focused on physical understanding of the late stages of transition from laminar to turbulent flows, with the specific goal of contributing to improving engineering design of turbomachinery and wing airfoils. The workshop participants included academic researchers from the United States and abroad, and representatives from the gas-turbine industry and U.S. government laboratories. To improve interaction and discussions among the participants, no formal papers were required. The physical mechanisms discussed were related to natural and bypass transition, wake-induced transition, effects of freestream turbulence, turbulent spots, hairpin vortices, nonlinear instabilities and breakdown, instability wave interactions, intermittency, turbulence, numerical simulation and modeling of transition, heat transfer in boundary-layer transition, transition in separated flows, laminarization, transition in turbomachinery compressors and turbines, hypersonic boundary-layer transition, and other related topics. This volume contains abstracts and copies of the viewgraphs presented, organized according to the workshop sessions. The workshop summary and the plenary discussion transcript clearly outline future research needs.
Price Code: A24
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Document ID (CASI): 20070038942
Financial Sponsor: NASA Glenn Research Center
Report Number: NASA/CP-2007-214558; A-070010
Title (Incl. Subtitle): Workshop Report on Managing Solar Radiation
Publication Date: April 2007
Authorized Users: Publicly available
Author: Lane, Lee; Caldeira, Ken; Chatfield, Robert; Langhoff, Stephanie
Author Affil.: CRA International; Carnegie Institution of Washington; NASA Ames Research Center; NASA Ames Research Center
Abstract: The basic concept of managing Earth's radiation budget is to reduce the amount of incoming solar radiation absorbed by the Earth so as to counterbalance the heating of the Earth that would otherwise result from the accumulation of greenhouse gases. The workshop did not seek to decide whether or under what circumstances solar radiation management should be deployed or which strategies or technologies might be best, if it were deployed. Rather, the workshop focused on defining what kinds of information might be most valuable in allowing policy makers more knowledgeably to address the various options for solar radiation management.
Price Code: A03
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Document ID (CASI): 20070031204
Financial Sponsor: NASA Ames Research Center
Report Number: NASA/CP-2007-214874; L-19333
Title (Incl. Subtitle): Proceedings of the 2004 Workshop on CFD Validation of Synthetic Jets and Turbulent Separation Control
Publication Date: April 2007
Authorized Users: Publicly available
Author: Rumsey, Christopher L.
Author Affil.: NASA Langley Research Center
Abstract: The papers presented here are from the Langley Research Center Workshop on Computational Fluid Dynamics (CFD) Validation of Synthetic Jets and Turbulent Separation Control (nicknamed "CFDVAL2004"), held March 2004 in Williamsburg, Virginia. The goal of the workshop was to bring together an international group of CFD practitioners to assess the current capabilities of different classes of turbulent flow solution methodologies to predict flow fields induced by synthetic jets and separation control geometries. The workshop consisted of three flow-control test cases of varying complexity, and participants could contribute to any number of the cases. Along with their workshop submissions, each participant included a short write-up describing their method for computing the particular case(s). These write-ups are presented as received from the authors with no editing. Descriptions of each of the test cases and experiments are also included.
Price Code: A10
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Document ID (CASI): 20070031059
Financial Sponsor: NASA Langley Research Center
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