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Toughening β‐Ga2O3 via Mechanically Seeded Dislocations
Advanced Functional Materials, EarlyView.β‐Ga2O3 is promising for next‐generation semiconductors but its brittleness limits flexible and high‐precision applications. Here, mechanically seeded dislocations introduced by surface deformation improved damage tolerance in (001) β‐Ga2O3. Nanoindentation and characterization show dislocations suppress cleavage cracks by enabling stable plastic ...
Zanlin Cheng +5 more
wiley +1 more source
Advanced Functional Materials, EarlyView.A non‐annealed process is developed for non‐PEDOT:PSS inverted tin‐lead perovskite solar cells to attain PCE 22.67% for the PTAA‐based device. When PTAA is applied in an all‐perovskite tandem solar cell, a record efficiency of 28.14% is obtained with great stability for the efficiency maintaining 96% of its original value for 500 h under one‐sun ...
Chun‐Hsiao Kuan +12 more
wiley +1 more source
Modeling of 3D In-Building Propagation by Ray Tracing Technique
Tongxin xuebao, 1995 Gong Ke +2 more
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ACM SIGGRAPH 2005 Courses on - SIGGRAPH '05, 2005
Ray tracing is a method to produce realistic images; it determines visible surfaces in an image at the pixel level (Appel, 1968; Kay & Greenberg, 1979; Whitted, 1980). Unlike the z-buffer and BSP tree, ray tracing operates pixel-by-pixel rather than primitive-by-primitive.
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Ray tracing is a method to produce realistic images; it determines visible surfaces in an image at the pixel level (Appel, 1968; Kay & Greenberg, 1979; Whitted, 1980). Unlike the z-buffer and BSP tree, ray tracing operates pixel-by-pixel rather than primitive-by-primitive.
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Proceedings of the Physical Society. Section B, 1952
An iterative ray-tracing method described by T Smith is shown to give a divergent sequence of approximations in certain cases; when it converges it has only first order convergence according to Hartree's classification of iterative processes An iterative method which always gives second order convergence is described and the significance of the ...
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An iterative ray-tracing method described by T Smith is shown to give a divergent sequence of approximations in certain cases; when it converges it has only first order convergence according to Hartree's classification of iterative processes An iterative method which always gives second order convergence is described and the significance of the ...
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Applied Optics, 1990
The results of measuring the ray trace speed and compilation speed of thirty-nine computers in fifty-seven configurations, ranging from personal computers to super computers, are described. A correlation of ray trace speed has been made with the LINPACK benchmark which allows the ray trace speed to be estimated using LINPACK performance data.
P, Robb, B, Pawlowski
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The results of measuring the ray trace speed and compilation speed of thirty-nine computers in fifty-seven configurations, ranging from personal computers to super computers, are described. A correlation of ray trace speed has been made with the LINPACK benchmark which allows the ray trace speed to be estimated using LINPACK performance data.
P, Robb, B, Pawlowski
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International Optical Design, 2006
This paper describes a computational approach to handling CAD objects within the framework of optical design software. Very fast ray-tracing speeds can be achieved through realistic objects used in the manufacture of optical systems.
Mark Nicholson +2 more
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This paper describes a computational approach to handling CAD objects within the framework of optical design software. Very fast ray-tracing speeds can be achieved through realistic objects used in the manufacture of optical systems.
Mark Nicholson +2 more
openaire +1 more source
SPIE Proceedings, 1990
This paper presents a new linearized ray-trace technique for analysis of general optical beam trains, developed for integrated structures/optics/controls design of spaceborne optical instruments. Computer routines based on our approach are fast enough to be executed in-line as part of a spacecraft dynamic simulation or as part of a real-time controller.
D.C. Redding, W.G. Breckenridge
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This paper presents a new linearized ray-trace technique for analysis of general optical beam trains, developed for integrated structures/optics/controls design of spaceborne optical instruments. Computer routines based on our approach are fast enough to be executed in-line as part of a spacecraft dynamic simulation or as part of a real-time controller.
D.C. Redding, W.G. Breckenridge
openaire +1 more source