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Particle Systems - A Technique for Modeling a Class of Fuzzy Objects

by William T. Reeves - ACM Transactions on Graphics , 1983
"... This paper introduces particle systems--a method for modeling fuzzy objects such as fire, clouds, and water. Particle systems model an object as a cloud of primitive particles that define its volume. Over a period of time, particles are generated into the system, move and change form within the syst ..."
Abstract - Cited by 385 (0 self) - Add to MetaCart
the system, and die from the system. The resulting model is able to represent motion, changes of form, and dynamics that are not possible with classical surface-based representations. The particles can easily be motion blurred, and therefore do not exhibit temporal aliasing or strobing. Stochastic processes

An Improved In Situ and Satellite SST Analysis for Climate

by Richard W. Reynolds, Nick A. Rayner, Thomas M. Smith, Diane C. Stokes, Wanqiu Wang - J Clim 15:1609–1625. doi , 2002
"... A weekly 18 spatial resolution optimum interpolation (OI) sea surface temperature (SST) analysis has been produced at the National Oceanic and Atmospheric Administration (NOAA) using both in situ and satellite data from November 1981 to the present. The weekly product has been available since 1993 a ..."
Abstract - Cited by 391 (12 self) - Add to MetaCart
A weekly 18 spatial resolution optimum interpolation (OI) sea surface temperature (SST) analysis has been produced at the National Oceanic and Atmospheric Administration (NOAA) using both in situ and satellite data from November 1981 to the present. The weekly product has been available since 1993

Crystal structure of rhodopsin: a G protein-coupled receptor

by Krzysztof Palczewski, Takashi Kumasaka, Tetsuya Hori, Craig A. Behnke, Hiroyuki Motoshima, Brian A. Fox, Isolde Le Trong, David C. Teller, Tetsuji Okada, Ronald E. Stenkamp, Masaki Yamamoto, Masashi Miyano - LeTrong I, Teller DC, Okada T, Stenkamp RE et , 2000
"... Heterotrimeric guanine nucleotideÐbinding protein (G protein)Ðcoupled recep-tors (GPCRs) respond to a variety of different external stimuli and activate G proteins. GPCRs share many structural features, including a bundle of seven transmembrane a helices connected by six loops of varying lengths. We ..."
Abstract - Cited by 376 (4 self) - Add to MetaCart
. IdentiÞcation of a set of residues that mediate interactions between the transmembrane helices and the cytoplasmic surface, where G-protein activation occurs, also suggests a possible structural change upon photoactivation.

The Office of the Future: A Unified Approach to Image-Based Modeling and Spatially Immersive Displays

by Ramesh Raskar, Greg Welch, Matt Cutts, Adam Lake, Lev Stesin, Henry Fuchs - In SIGGRAPH 98 Conference Proceedings , 1998
"... We introduce ideas, proposed technologies, and initial results for an office of the future that is based on a unified application of computer vision and computer graphics in a system that combines and builds upon the notions of the CAVE™, tiled display systems, and image-based modeling. The basic id ..."
Abstract - Cited by 352 (28 self) - Add to MetaCart
changes in the surfaces. In the first case, one could designate every-day (potentially irregular) real surfaces in the office to be used as spatially immersive display surfaces, and then project high-resolution graphics and text onto those surfaces. In the second case, one could transmit the dynamic image-based

Radar Interferometry and its application to changes in the Earth’s surface

by Didier Massonnet, Kurt L. Feigl - REVIEWS OF GEOPHYSICS 36(4) , 1998
"... Geophysical applications of radar interferometry to measure changes in the Earth’s surface have exploded in the early 1990s. This new geodetic technique calculates the interference pattern caused by the difference in phase between two images acquired by a spaceborne synthetic aperture radar at two ..."
Abstract - Cited by 292 (6 self) - Add to MetaCart
Geophysical applications of radar interferometry to measure changes in the Earth’s surface have exploded in the early 1990s. This new geodetic technique calculates the interference pattern caused by the difference in phase between two images acquired by a spaceborne synthetic aperture radar at two

Pyramidal parametrics

by Lance Williams - Computer Graphics (SIGGRAPH ’83 Proceedings , 1983
"... The mapping of images onto surfaces may substantially increase the realism and information content of computer-generated imagery. The projection of a flat source image onto a curved surface may involve sampling difficulties, however, which are compounded as the view of the surface changes. As the pr ..."
Abstract - Cited by 304 (1 self) - Add to MetaCart
The mapping of images onto surfaces may substantially increase the realism and information content of computer-generated imagery. The projection of a flat source image onto a curved surface may involve sampling difficulties, however, which are compounded as the view of the surface changes

Pad -- An Alternative Approach to the Computer Interface

by Ken Perlin, David Fox - IN PROC. ACM SIGGRAPH , 1993
"... We believe that navigation in information spaces is best supported by tapping into our natural spatial and geographic ways of thinking. To this end, we are developing a new computer interface model called Pad. The ongoing Pad project uses a spatial metaphor for computer interface design. It provides ..."
Abstract - Cited by 333 (2 self) - Add to MetaCart
object occupies a well defined region on the Pad surface. For navigation, Pad uses "portals" - magnifying glasses that can peer into and roam over different parts of this single infinite shared desktop; links to specific items are established and broken continually as the portal's view

Radiative forcing and climate response

by J. Hansen, M. Sato, R. Ruedy - J. Geophys. Res , 1997
"... Abstract. We examine the sensitivity of a climate model to a wide range of radiative forcings, including changes of solar irradiance, atmospheric CO2, 03, CFCs, clouds, aerosols, surface •bedo, and a "ghost " forcing introduced at arbitrary heights, latitudes, longitudes, seasons, and time ..."
Abstract - Cited by 323 (4 self) - Add to MetaCart
Abstract. We examine the sensitivity of a climate model to a wide range of radiative forcings, including changes of solar irradiance, atmospheric CO2, 03, CFCs, clouds, aerosols, surface •bedo, and a "ghost " forcing introduced at arbitrary heights, latitudes, longitudes, seasons

Spectacular topography and surface changes occur...

by A. S. Khalil A, L. T. Chadderton B, A. Yu. Didyk A, M. C. Ridgway B, A. M. Stewart B
"... InP (001) samples were irradiated with 200 MeV Au ions at different uences. The surface nanotopographical changes due to increasing uence of swift heavy ions were observed by Atomic Force Microscopy (AFM), where the onset of large increase in surface roughness for uences sufˇcient to cause comple ..."
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InP (001) samples were irradiated with 200 MeV Au ions at different uences. The surface nanotopographical changes due to increasing uence of swift heavy ions were observed by Atomic Force Microscopy (AFM), where the onset of large increase in surface roughness for uences sufˇcient to cause

Data structure for soft objects

by Geoff Wyvill, Craig Mcpheeters, Brian Wyvill - Visual Computer , 1986
"... We:introduce the concept of soft objects whose shape changes in response to their surroundings. Established geometric modelling techniques exist to handle most engineering components, including 'free form ' shapes such as car bodies and telephones. More recently, there has been a lot of in ..."
Abstract - Cited by 315 (25 self) - Add to MetaCart
We:introduce the concept of soft objects whose shape changes in response to their surroundings. Established geometric modelling techniques exist to handle most engineering components, including 'free form ' shapes such as car bodies and telephones. More recently, there has been a lot
Results 11 - 20 of 33,715