Critical Computer Systems
Mostrando 1-12 de 39 artigos, teses e dissertações.
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1. BIBLIOMETRIC MAPPING OF PAPERS ON GEOGRAPHICAL INFORMATION SYSTEMS (2007-2016)
Abstract The amount of researchers and scientific papers rapidly grows, annually. The metrics to analyze the quality and quantity of these publications have consolidated in the academic world. A bibliometric mapping of scientific papers on Geographic Information Systems (GIS) published between 2007 and 2016 was carried out. The sample analyzed 2,053 papers,
Bol. Ciênc. Geod.. Publicado em: 14/10/2019
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2. Analysis and proposal of reduction of lead time in the process of cutting, loading and transportation in a sugar cane factory: a study case
Resumo A partir da importância do setor sucroenergético para a economia brasileira, e da importância do processo de corte/carregamento/transporte (CCT) de cana no suprimento e no custo da produção do açúcar, álcool e derivados, este artigo tem como estudo de caso uma usina de cana-de-açúcar paulista. O objetivo deste trabalho foi construir propost
Gest. Prod.. Publicado em: 05/09/2019
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3. Numerical fundamentals and interactive computer graphics system for the nonlinear analysis of planar frames
Abstract Recent scientific and computational advances have facilitated the analysis of slender structural systems subject to instability. With the employment of more sophisticated numerical tools and algorithms, it is possible to accurately determine the critical points (limit and bifurcation loads) as well as the post-critical behavior of the structural sys
REM, Int. Eng. J.. Publicado em: 2019-06
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4. PRO-ELICERE: A Hazard Analysis Automation Process Applied to Space Systems
ABSTRACT In the last decades, critical systems have increasingly been developed using computers and software even in space area, where the project approach is usually very conservative. In the projects of rockets, satellites and its facilities, like ground support systems, simulators, among other critical operations for the space mission, it must be applied
J. Aerosp. Technol. Manag.. Publicado em: 2016-09
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5. Controle ativo acústico estrutural: projeto, simulação e análise de qualidade sonora / Active structural acoustic control: design, simulation and analysis of sound quality
This master thesis deals with the study of active noise and sound quality control systems in automotive applications, and the innovative assessment of their performance based on relevant psychoacoustic metrics in this area such as Loudness, Roughness and Tonality. A methodology for designing and implementing active control systems based on psychoacoustic met
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/08/2012
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6. Avaliação comparativa entre técnicas de programação defensiva aplicadas a um sistema crítico simulado. / Comparative evaluation among defensive programming techniques applied in a critical system simulated.
The introduction of software systems for critical applications raises safety issues that have long fell predominantly on the development of the hardware composing such systems. Currently, standards related to safety software qualitatively assess the impact of their use on systems sensitive to random errors. The research developed here seeks, in addition to o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/05/2011
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7. Uma contribuição ao estudo de limitadores de corrente elétrica supercondutores usando transformador e fita supercondutora de alta temperatura crítica / A contribution to the study of superconductive fault current limiters using transformer and high critical temperature superconductive tape
Esta dissertação apresenta um estudo sobre limitadores de corrente elétrica supercondutores que funcionam com um transformador e com material supercondutor de alta temperatura crítica (HTS) em forma de fita. Neste caso utilizou-se a fita supercondutora do composto de YBCO. Neste trabalho é apresentado um resumo da evolução da supercondutividade desde
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/03/2011
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8. Sistemas multiagentes na avaliação pedagógica e na detecção do perfil cognitivo dos alunos: proposta de modelo para uso em ambientes de ensino a distância / Multi-agent systems in learning evaluation and in detection of students learning styles: a proposed model for use in distance education environments.
The computer science is a great allied in the education process. Especially in distance education environment (DEE), the spread of new information and communication technologies have been critical to the broad expansion of this mode of education. These technologies include those in the field of artificial intelligence which have great capacity to adapt to th
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/03/2010
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9. Identifying dependability requirements for space software systems
Abstract: Computer systems are increasingly used in space, whether in launch vehicles, satellites, ground support and payload systems. Software applications used in these systems have become more complex, mainly due to the high number of features to be met, thus contributing to a greater probability of hazards related to software faults. Therefore, it is fun
J. Aerosp. Technol. Manag.. Publicado em: 2010-12
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10. Arquitetura modular de processador multicore, flexível, segura e tolerante a falhas, para sistemas embarcados ciberfísicos. / Modular multicore processor architecture, flexible, securi and fault tolerant, to embedded cyber-physical systems.
Cyber-physical Systems (CPS) are systems where there is an union between computing and physics. The CPS will be used in several areas, forming a new era of systems or devices and could be anywhere, being used by anyone and anything. Applications for CPS include highly reliable medical systems and devices, traffic control and security, advanced automotive, pr
Publicado em: 2010
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11. Sistemas críticos sob a perspectiva do design de interação e comunicação / Critical systems under the perspective of interaction and communication
Sistemas críticos têm sido definidos como sistemas cujo fracasso provoca conseqüências catastróficas ou inaceitáveis para a vida humana. A literatura tem relatado vários casos reais de falhas relacionadas à interação e comunicação que levaram a perdas de vidas humanas. Na aviação, muitos incidentes têm causas originadas de falha de interação
Publicado em: 2010
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12. Construção participativa de um sistema de informações em uma associação de produtores agroecológicos
Informations permeate productive systems therefore, currently, its management has great relevance. Agroecology has been expanding worldwide, and in Brazil, family farming has a big participation on this production, frequently being held by organizations with associative and cooperative bases. In this context, informations complexity is greater. This work pre
Publicado em: 2010