Publications with Abstracts by Alfred Hübler (1996)
* Publications in journals with a strict referee process
- * M. Dueweke, U. Dierker, A. Hübler, Self-assembling Electrical Connections Based on the Principle of Minimum Resistance, Phys.Rev.E 54, 496-506 (1996)
Abstract: We study self-constructing and self-repairing electrical connections built by agglomeration of metallic particles between two electrodes. Our experiments show that self-assembling electrical connections grow by building a chain of particles between two electrodes immersed in a dielectric liquid. We find that the growth time for the self-assembling process is a linear function of the initial average spacing of metallic particles and a linear function f the distance between the electrodes. Furthermore, the experiments demonstrate the ability of the electrical connection to self-repair following small perturbation. We show that the agglomeration process occurs in such a way as to minimize the overall resistance of the system. We discuss possible future applications of this phenomenon for fabricating nanoscale circuits.
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- * A. Hübler, A.M. Assad, CyberProf: An Intelligent Human-Computer Interface for Asynchronous Wide Area Training and Teaching, World Wide Web Journal 4, 231-237 (1996)
Abstract: We introduce Cyberprof, a robust software package which utilizes the full capabilities of a World Wide Web server as an intelligent human-computer interface for grading, creating and presenting educational course materials. Students can solve course problems presented with text, graphics, animations and sound on the Web and can receive instant feedback from a sophisticated grading package which makes use of the latest complex systems data analysis tool to handle ambiguous input in an intelligent manner. Fully integrated lecture notes and help files are hyperlinked to assist the student in solving an exercise. Instructors can make use of built-in problem set and lecture notes editors to create an entire online course customized for their needs. Early results of the system are promising. In the first university course in which CyberProf was used, class attendance rates were significantly higher, drop out rates were lower, and grade distributions were higher when compared to figures from the same course in previous semesters.
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