Advanced parametric processes enable the exploration of a wide range of design intentions and the generation of alternative project configurations. A novel parametric approach that integrates climatic and site data in...
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Advanced parametric processes enable the exploration of a wide range of design intentions and the generation of alternative project configurations. A novel parametric approach that integrates climatic and site data into a dynamic model of a large building project, to support architectural decisions in early design stages, is presented. Bioclimatic considerations that involve solar radiation analysis and computational fluid dynamic (CFD)-based wind flow simulations have been integrated into the parametric model, in order to explore the interaction of the geometry of the proposed buildings with the solar exposure and the prevailing winds in the area throughout the year. A new student housing complex on the campus of the University of Patras, Greece, was used as a test-bed for experimentation with the developed design algorithms that link local climatic data with the site topography and the basic geometric features of the buildings on the site. The parametric process and the design algorithms were particularly useful in the early design stage, during which various arrangements of the buildings on the site were studied, in order to optimize their environmental performance. (C) 2011 Elsevier B.V. All rights reserved.
A design approach is presented in this paper for underactuation in robotic finger mechanisms. The characters of underactuated finger mechanisms are introduced as based on linkage and spring systems. The feature of sel...
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A design approach is presented in this paper for underactuation in robotic finger mechanisms. The characters of underactuated finger mechanisms are introduced as based on linkage and spring systems. The feature of self-adaptive enveloping grasp by underactuated finger mechanisms is discussed with feasible in grasping unknown objects. The design problem of robotic fingers is analyzed by looking at many aspects for an optimal functionality. design problems and requirements for underactuated mechanisms are formulated as related to human-like robotic fingers. In particular, characteristics of finger mechanisms are analyzed and optimality criteria are summarized with the aim to formulate a general design algorithm. A general multi-objective optimization design approach is applied as based on a suitable optimization problem by using suitable expressions of optimality criteria. An example is illustrated as an improvement of finger mechanism in Laboratory of Robotics and Mechatronics （LARM） Hand. Results of design outputs and grasp simulations are reported with the aim to show the practical feasibility of the proposed concepts and computations.
Die globale Erwärmung wird offensichtlich durch eine Membrane aus Industriegasen verursacht, die bei der konventionellen Energiegewinnung entstehen. Die zur Zeit vorherrschende Meinung besagt, dass die derzei...
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Die globale Erwärmung wird offensichtlich durch eine Membrane aus Industriegasen verursacht, die bei der konventionellen Energiegewinnung entstehen. Die zur Zeit vorherrschende Meinung besagt, dass die derzeitigen Naturkatastrophen Folgen dieser Umweltverschmutzung sind. Eine der Reaktionen der hochentwickelten Welt ist die Forcierung von erneuerbaren Energiequellen wie Biomasse, Wasser, Sonne und Wind. Wind ist definitive die wichtigste Alternative zu den fossilen Brennstoffen, und deshalb gehören Windkraftanlagen zu den wichtigsten Bauarten der nahen Zukunft. In diesem Beitrag wird The state of the art von Windkraftanlagen behandelt. Entsprechend dem hohen Stellenwert dieser turmartigen Massenbauwerke stehen dabei Lösungen ihrer beiden bautechnischen Fragen - Sicherheit und Wirtschaftlichkeit - im Vordergrund, untermauert durch drei Kernthemen: - Merkmale, Grundlagen, maßgebliche Tragrichtungen - vertikale Tragrichtung mit einem Erläuterungsbeispiel - horizontale Tragrichtung mit einem Erläuterungsbeispiel Der Aufsatz schließt mit Ausführungen über die aktuellen Herausforderungen und Entwicklungstendenzen der Energiegewinnung aus Windkraft. Wind Power Plants - Environment, design, outlook and scope. The today's world is confronted by two global threats: worming effect caused probably by the excessive use of fossil fuels and dependence on these becoming short sources of energy. The worming effect is caused by a membrane of gases produced among others during the conventional energy generation. There are voices claiming that some of the current natural disasters are consequences of such air pollution. One of the reactions of the highly developed world is use of renewable energy sources such as bio mass, water, sun and wind. Wind is definitive the most important alternatives to the fossil fuels and so wind mills belong to the most important structures of the near future. Consequently, the paper addresses the following major
An overview of the design of statistical experiments is presented, with special emphasis on response surface designs, block designs, neighbor designs. Applications are mentioned for industrial quality improvement, agr...
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An overview of the design of statistical experiments is presented, with special emphasis on response surface designs, block designs, neighbor designs. Applications are mentioned for industrial quality improvement, agricultural experiments, biometry. An outlook towards design optimality concludes the survey.
Existing algorithms for the construction of exact D-optimum designs customarily search a list of candidate points. This article describes a computationally simple method of improving such designs. Tables are given of ...
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Existing algorithms for the construction of exact D-optimum designs customarily search a list of candidate points. This article describes a computationally simple method of improving such designs. Tables are given of designs for second-order models with as many as five factors found by search over candidate points. These are compared with designs already in the literature and used as the starting point for the adjustment algorithm.
The problem considered in the paper refers to the general area of developing design and computational algorithms for analysing low-sensitivity time-invariant multivariable two-dimensional systems using output feedback...
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The problem considered in the paper refers to the general area of developing design and computational algorithms for analysing low-sensitivity time-invariant multivariable two-dimensional systems using output feedback. It is seen that the matrix-minimum principle can be used to study two-dimensional digital systems with incomplete state information for the implementation of a low-sensitivity feedback law. The results show that an observer can be used in addition to the output vector to estimate the state of the system, which in turn is used for implementing the feedback law.
The study of abstract models of computer systems using deterministic methods has produced sigmficant insight into the behavior of such systems in recent years This paper considers a model of a minicomputer network whi...
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