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Existing algorithms for rendering Bezier curves and surfaces fall into two categories: iterative evaluation of the parametric equations (generally using forward differencing techniques) or recursive subdivision. In the latter case, all the algorithms rely ...
This work deals with the modelling of electrochemical reactors with bipolar electrodes. We give a numerical model which enables us to compute electrical current and potential distributions in an electrochemical cell of any type of geometry in two and three ...
We present a parametrised Preisach-type model that describes the hysteresis exhibited by the high temperature superconductors (HTSC); hysteresis is the main cause for losses in the subcritical domain. The parametrised model, in combination with electrical ...
A three-dimensional platinum (Pt) microelectrode array embedded on a micromachined silicon (S) substrate (porosity of 13%, via hole diameter of 40 μm) has been developed. Electrodes are 35-μm wide and 20-μm high, spaced 200 μm apart and arranged in an elli ...
The design of a diffration grating used as an output coupler for a Fabry-Perot resonator is presented. We then consider the problem of determining the distortion and the cross-polarization of the incident Gaussian beam. Different types of gratings and plan ...
A simple method is proposed for the estn. of the current bypass from exptl. current potential (i-U) curves measured for a bipolar reactor and with a one element cell of similar geometry. The model is valid only in the region where a linear i-U relation was ...
This paper discusses the problem of 3D indexing. That is, given a collection of 3D object models (CAD models, formalized as collections of labeled 3D points), an indexing algorithm may perform off-line pre-processing to generate a data structure that allow ...
For the first time we have characterized a micromotor driven by a piezoelectric PZT (PbZrxTi1-xO3) thin film. Sputter and sol-gel techniques have been applied for the deposition of the PZT films onto a silicon stator membrane, which is 20-30 mu m thick and ...
2D-CELL is a software package for the processing and analyzing of photographic images of cellular structures in a largely interactive way. Starting from a binary digitized image, the programs extract the line network (skeleton) of the structure and determi ...
A simple method is proposed for the estn. of the current bypass from exptl. current-potential (i-U) curves measured for a bipolar reactor and with a one-element cell of similar geometry. The model is valid only in the region where a linear i-U relation is ...
