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Item A Client-side Approach towards Platform Independent Molecular Visualization over the World Wide Web(Springer and The Eurographics Association, 1999) Bender, Michael; Hagen, Hans; Seck, Axel; Gröller, E., Löffelmann, H., Ribarsky, W.A web-based, entirely platform independent Molecular Visualization System has been developed using state of the Internet programming techniques. This system offers the visualization of various molecular models, molecular surfaces and molecular properties which can be displayed at the same time . The system itself has been developed using the Java programming language, which alIows flexible and platform independent use, perfect integration with the World Wide Web and due to its object-oriented structure easy extension and maintenance. All necessary calculations, e.g. the calculation of a Richards' Contact Surface or an lsosurface, take place on the client's side exploiting the computational power of modern desktop workstations and personal computers.Item Visualization of Grinding Processes(Springer and The Eurographics Association, 1999) Fiege, Markus; Scheuermann, Gerik; Münchhofen, Michael; Hagen, Hans; Gröller, E., Löffelmann, H., Ribarsky, W.In grinding technology, the application ofsupcrabrasivcs and increasing demands for higher productivity and higher quality require an appropriate selection of optimum set-up parameters. An efficient way to determine and test these parameters is modeling and simulating the grinding process. A visualization of the results can support the choice of the parameters and increase the knowledge of the complex grinding process. This paper describes a web-based visualization tool on the basis of a kinematic simulation. The tool allows the visualization of the surface of an already ground workpiece as well as the changing shape of the workpiece during the grinding process. Two methods for the visualization of the grinding-objects are implemented. One method describes the scene with the Virtual Reality Modeling Language, the other one uses a renderer to create the images.