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A tandem cell or photoelectrochemical system for the cleavage of water to hydrogen and oxygen by visible light has two superimposed photocells, both cells being connected electrically. The photoactive material in the top cell is a semiconducting oxide plac ...
(Ecole Polytechnique Federale de Lausanne (EPFL), Switz.).2001
Printed reflectarrays are low-cost, low-profile high gain antennas demonstrating distinctive advantages over conventional parabolic reflectors and phased-arrays. The flat, low weight reflecting surface of a reflectarray makes it an attractive alternative w ...
A tandem cell or photoelectrochemical system for the cleavage of water to hydrogen and oxygen by visible light has two superimposed photocells, both cells being connected electrically. The photoactive material in the top cell is a semiconducting oxide plac ...
Cet ouvrage présente les principaux éléments matériels et logiciels de l´informatique temps-réel. Les connaissances acquises doivent permettre à l´ingénieur de comprendre le fonctionnement et de programmer les cartes de commande industrielles modernes basé ...
Presses Polytechniques et Universitaires Romandes1997
The various types of advanced television (ATV) are defined, and the most advanced type, high-definition TV (HDTV), is discussed. The present status of HDTV development in the US, Japan, and Europe is examined. Signal processing requirements for HDTV are br ...
A multiresolution representation for video signals is introduced. A three-dimensional spatiotemporal pyramid algorithms for high-quality compression of advanced television sequences is presented. The scheme utilizes a finite memory structure and is robust ...
High Dynamic Range (HDR) imaging is able to capture a wide range of luminance values, closer to what the human visual system can perceive. It is believed by many that HDR is a technology that will revolutionize TV and cinema industry similar to how color t ...
Downhill skiers enter a different dimension on the racecourse, but they are still subject to the laws of physics. A new Swiss system integrates GPS, video, and biosensors for precise position, velocity and heart-rate measurement, helping coaches and athlet ...
We propose a new operator for creating rotated dither threshold arrays. This new discrete one- to-one rotation operator is briefly explained. We analyze its application to different dispersed- dot dither arrays such as hexagonal dispersed dither arrays and ...
Society of Photo-Optical Instrumentation Engineers, Bellingham, WA, USA1995
