918 resultados para Computer science and engineerings


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This publication, compiled by Gilberto C. Gallopín, Regional Adviser in Environmental Policy for Latin America and the Caribbean, contains the results of the deliberations of the Latin American and Caribbean Regional Workshop on Science and Technology for Sustainable Development. The purpose of the Workshop was to discuss the practical, theoretical and organizational challenges that the quest for sustainable development poses to science and technology (S&T). The increase in complexity and connectivity characteristic of our times results in that the components of the problems are now much less separable than before, and emphasizes the need to approach the problems of development and the environment not only as complex issues in themselves, but also as inseparable and mutually determined. This represents an exceptional challenge to science and technology, particularly to the analytical approaches compartmentalized into disciplines, which represents the bulk of activities and priorities of current S&T systems in both north and south. The Workshop attempted to articulate a Latin American and Caribbean vision towards the search of more effective ways of generating and applying Science and Technology to the problems and opportunities of the region.

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This work describes a control and supervision application takes into account the virtual instrumentation advantages to control and supervision industrial manufacturing stations belonging to the modular production system MPS® by Festo. These stations integrate sensors, actuators, conveyor belt and other industrial elements. The focus in this approach was to replace the use of programmable logic controllers by a computer equipped with a software application based on Labview and, together, performs the functions of traditional instruments and PLCs. The manufacturing stations had their processes modeled and simulated in Petri nets. After the models were implemented in Labview environment. Tests and previous similar works in MPS® installed in Automation Laboratory, at UNESP Sorocaba campus, showed the materials and methods used in this work allow the successful use of virtual instrumentation. The results indicate the technology as an advantageous approach for the automation of industrial processes, with gains in flexibility and reduction in project cost. © 2011 IEEE.

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This paper aims to present the use of a learning object (CADILAG), developed to facilitate understanding data structure operations by using visual presentations and animations. The CADILAG allows visualizing the behavior of algorithms usually discussed during Computer Science and Information System courses. For each data structure it is possible visualizing its content and its operation dynamically. Its use was evaluated an the results are presented. © 2012 AISTI.

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Includes bibliography

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Presenta la organizacion de los trabajos y el resumen de los debates de la reunion del CEGAN, realizada en Montevideo entre el 23 y el 24 de enero de 1984 en la cual se trataron la evaluacion de la aplicacion del Programa de Accion de Viena sobre ciencia y tecnologia para el desarrollo en America Latina, las propuestas de medidas y acciones futuras y las recomendaciones a los organos internacionales y regionales.

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Informe de la reunion sobre metodologia para la evaluacion de las capacidades nacionales en ciencia y tecnologia, realizada en Suriname, del 12 al 15 de octubre de 1981. Presenta un resumen de los debates, conclusiones y recomendaciones.

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Describe las actividades realizadas por el Consejo del Caribe para la Ciencia y la Tecnologia, desde noviembre de 1981 a diciembre de 1982. Incluye el informe de la segunda reunion plenaria del Consejo, llevada a cabo en Kingston, Jamaica, del 3 al 5 de noviembre de 1982.