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Tele-nanorobotics using an atomic force microscope as a nanorobot and sensor
(1998)Advanced RoboticsIn this paper, a tele-nanorobotic system using an atomic force microscope (AFM) as the nanorobot and sensor has been proposed. Modeling and control of the AFM cantilever, and modeling of nanometer scale forces have been realized for telemanipulation applications. In addition to three-dimensional virtual reality visual feedback in the user interface, a 1 d.o.f. haptic device has been constructed for nano-scale haptic sensing. For feeling ...Journal Article -
Über Phaeosphaeria Miyake und andere bitunicate Ascomyceten mit mehrfach querseptierten Ascosporen
(1984)SydowiaJournal Article -
Closed-Loop Identification of Flexible Structures: An Experimental Example
(1998)Journal of Guidance, Control, and DynamicsThis paper describes the application of a closed-loop identification procedure to a flexible structure: the JPL CSI Phase~B testbed. The approach is based on an indirect, closed-loop identification procedure, recently developed by Van den Hof and Schrama, which gives a consistent model estimate in the case where the system noise/output disturbance model is not accurate. The procedure is modified and applied, in the frequency domain, ...Journal Article -
Optimal Control of Perturbed Linear Static Systems
(1996)IEEE Transactions on Automatic ControlThis note considers the problem of designing an optimal controller for linear static systems with uncertainty modeled as a single induced Euclidean norm bounded MIMO perturbation. The objective is the minimization of the singular value of the disturbance to error transfer function. The static (constant matrix) design problem is convex and can be formulated as a sequence of generalized eigenvalue problems. We present a detailed example, ...Journal Article -
Eigenvalue Perturbation Models for Robust Control
(1995)IEEE Transactions on Automatic ControlThis note presents a non conservative description of the regions containing the eigenvalues of a diagonal matrix, perturbed by the set of all unknown, Euclidean norm bounded matrices. This is extended to real valued block diagonal matrices where each two-by-two block reveals a complex conjugate pair of eigenvalues. A weighting matrix allows one to specify the exact size of the perturbation to each of the eigenvalues. An identical result ...Journal Article -
Recht auf Wasser? Verteilungskonflikte im Jordanbecken
(1996)PROKLA: Zeitschrift für kritische SozialwissenschaftThe arcticle gives detailed infonnation on the current water situation in the light of past struggles and recent peace agreements. Considering international law and human rights, proposals for water distribution are scrutinized with respect to an equitable allocation of the scarcc resource water in the region. The factors of international law are wcighted, the different aspects of basic demand requirements are discussed.Journal Article -
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Die Kühlung von Kernkraftwerken mit Flusswasser
(1971)Wasser- und EnergiewirtschaftJournal Article -
Der instationäre Ausfluss aus Behältern
(1971)Swiss EngineeringDer instationäre Ausfluss aus Behältern wird formal durch eine Differentialgleichung beschrieben, welche die Differenz zwischen dem Zu- und dem Ausfluss mit der zeitlichen Volumenzunahme oder -abnahme verknüpft (sogenannte Retentionsgleichung). Die Auflösung dieser Gleichung gelingt nur in wenigen Fällen analytisch, so dass zahlreiche Untersuchungen die Verwendung numerischer Verfahren erheischen. Insbesondere bietet sich ein grafisches ...Journal Article -
Die Berechnung der Hochwasserretention von Seen
(1971)Schweizerische Bauzeitung = Revue polytechnique suisseJournal Article