Errors Recovering
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Estimação de estado em sistemas elétricos de potência: composição de erros de medidas / State estimation in power systems: measurement error composition
Bretas et al. (2009) has proved, using geometric background, that the measurement error can be decomposed into two components the detectable and the undetectable component respectively. Bretas has also demonstrated that the current methodologies used for processing of gross errors (GE), consider only the detectable component of the error. Thus, depending on
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/08/2011
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2. Modelagem em geometria digital aprimorada por técnicas adaptativas de segmentos de retas. / Digital geometry modelling enhancement by straight line segment adaptive techniques.
For the representation of digital straight lines, digitized straight line segments and arcs, each of the available research approaches has its advantages and suitable applications. However, taking into account the complexities of real-world scenarios, the use of these representations is not so popular in situations that require flexible models or involving s
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/05/2011
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3. Um framework para coordenação do tratamento de exceções em sistemas tolerantes a falhas / A framework for exception handling coordination in fault-tolerant systems
The widespread scale adoption of computer networks and database management systems has contributed to the arising of complex information systems. Nowadays, these systems have become essential aspects in the everyday life, supporting business processes and indispensable enterprise services to society such as banking automation and telephony. The usage of comp
Publicado em: 2007
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4. An efficient optimization technique for recovering ventilation-perfusion distributions from inert gas data. Effects of random experimental error.
A variable metric optimization method of numerical analysis has been used to recover known distributions of intrapulmonary ventilation-perfusion ratios from inert gas data. Hypothetical lungs were simulated and corresponding inert gas retentions calculated. By using error-free retentions for seven gases and a 50-compartment model, it was possible to recover
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5. Estimating Substitution Rates in Ribosomal RNA Genes
A model is introduced describing nucleotide substitution in ribosomal RNA (rRNA) genes. In this model, substitution in the stem and loop regions of rRNA is modeled with 16- and four-state continuous time Markov chains, respectively. The mean substitution rates at nucleotide sites are assumed to follow gamma distributions that are different for the two types