Results 271 to 280 of about 16,567,586 (308)

New approach to spectroscopy of surface plasmons

Optics Letters, 2006
We report a novel approach to spectroscopy of surface plasmons based on the simultaneous excitation of surface plasmons by a polychromatic light and the dispersion of light on a diffraction grating coupler of a special design. This approach shows promise for the development of new, miniaturized, spectroscopic surface plasmon resonance (SPR) sensors ...
Olga, Telezhnikova, Ji I, Homola
openaire   +2 more sources

Quaternionic Approach of Slant Ruled Surfaces

Advances in Applied Clifford Algebras, 2022
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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A variational approach to spline curves on surfaces

Computer Aided Geometric Design, 2005
Given an \(m\)-dimensional surface \(\Phi\) in \({\mathbb R}^n\), the authors characterize parametric curves in \(\Phi\), which interpolate a sequence of given points in \(\Phi\), and minimize an energy functional. More precisely, the authors provide a characterization of the counterparts on surfaces to \(C^2\) cubic splines, to splines in tension and ...
Helmut Pottmann, Michael Hofer
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Modification of polymer surfaces: optimization of approaches

Perfusion, 2003
Modification of polymer surfaces to achieve a surface with enhanced compatibility is an important means of obtaining improved biomaterials. Techniques are available for altering the hydrophilicity or charge of a surface, attaching macromolecules or attempting to resemble cell membranes.
Courtney, J.M., Zhao, X.B., Qian, H., Sharma, A.   +3 more
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An Approach to Blend Surfaces

2002
In this paper, we present an application of a space mapping technique for surface reconstruction (more precisely: reconstruction of missing parts of a real geometric object represented by volume data). Using a space mapping technique, the surface of a given model, in particular tooth shape is fitted by a shape transformation to extrapolate the ...
Vladimir Savchenko, Nikita Kojekine
openaire   +1 more source

AN AUTOREGRESSIVE APPROACH TO SURFACE TEXTURE ANALYSIS

International Journal of Pattern Recognition and Artificial Intelligence, 1994
The use of autoregressive models in textual analysis holds great potential. Coupling the technique to a circular neighbourhood set imparts a rotational invariant property to it. This was demonstrated by Kashyap and Khotanzad in their model called the Circular Symmetric Autogressive (CSAR) Random Field model.
Dinesh P. Mital, Goh Wee Leng
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An approach to surface retouching and mesh smoothing

The Visual Computer, 2003
In this paper, we discuss a novel, fast, practical algorithm for surface modification of geometric objects. A space-mapping technique is used to transform a given or damaged part of a surface into a different shape in a continuous manner. The proposed approach is used for surface-retouching and mesh-smoothing problems.
Nikita Kojekine, Vladimir Savchenko, Michail Senin, Ichiro Hagiwara   +3 more
openaire   +1 more source

On surface reconstruction: A priority driven approach

Computer-Aided Design, 2009
To reconstruct an object surface from a set of surface points, a fast, practical, and efficient priority driven algorithm is presented. The key idea of the method is to consider the shape changes of an object at the boundary of the mesh growing area and to create a priority queue to the advancing front of the mesh area according to the changes.
Xiaokun Li, Chia Yung Han, William G. Wee   +2 more
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Surface Reconstruction Based on a Descriptive Approach

2000
The design of complex surfaces is generally hard to achieve. A natural method consists in the subdivision of the global surface into basic surface elements. The different elements are independently designed and then assembled together to represent the final surface.
Abdelaziz Bouras, Behzad Shariat, Eliane Perna, Sebti Foufou   +3 more
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Topological and Numerical Approaches to Surface Transformations

Journal of Geometry and Physics
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Selcuk Koyuncu, Ritvik Shah, Cenap Ozel
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