Discrete Channel Models
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Discrete Models for Error Occurrence Analysis in Wireless Network / Modelos Discretos para Análise de Ocorrência de Erros em Redes sem Fio
Na maioria dos canais de comunicação sem fio, a incidência de erros em sistema digital tende a ocorrer de forma agrupada (em rajadas). Tal comportamento reflete a característica de memória do canal, onde a ocorrência de um erro é estatisticamente dependente da ocorrência de erros em bits anteriores. Diversos modelos discretos foram apresentados na li
Publicado em: 2005
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2. Modelos e algoritmos para problemas de atribuição de capacidade e roteamento em redes de comunicação
The joint problem of selecting routing and a capacity for each link in a communication network is considered. We apply an alternative approach for some models that have been addressed for computer networks discrete capacity allocation and routing problems. The network topology and trac characteristics are assumed to be given. The goal is to obtain a feasible
Publicado em: 2003
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3. Solvation, water permeation, and ionic selectivity of a putative model for the pore region of the voltage-gated sodium channel.
This paper describes a molecular dynamics and molecular mechanics study of the solvation and selectivity of the narrow pore and vestibule region of a model-built structure for the voltage-gated sodium channel. The particular structure used was one proposed by Guy and Durell. However, many of the features we saw would likely be shared with other possible mode
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4. Wanderlust kinetics and variable Ca(2+)-sensitivity of dSlo [correction of Drosophila], a large conductance CA(2+)-activated K+ channel, expressed in oocytes.
Cloned large conductance Ca2+-activated K+ channels (BK or maxi-K+ channels) from Drosophila (dSlo) were expressed in Xenopus oocytes and studied in excised membrane patches with the patch-clamp technique. Both a natural variant and a mutant that eliminated a putative cyclic AMP-dependent protein kinase phosphorylation site exhibited large, slow fluctuations
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5. Wanderlust kinetics and variable Ca(2+)-sensitivity of Drosophila, a large conductance Ca(2+)-activated K+ channel, expressed in oocytes.
Cloned large conductance Ca(2+)-activated K+ channels (BK or maxi-K+ channels) from Drosophila (dSlo) were expressed in Xenopus oocytes and studied in excised membrane patches with the patch-clamp technique. Both a natural variant and a mutant that eliminated a putative cyclic AMP-dependent protein kinase phosphorylation site exhibited large, slow fluctuatio
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6. Voltage-dependent gating mechanism for single fast chloride channels from rat skeletal muscle.
1. A voltage-dependent gating mechanism for the fast Cl- channel was developed from the analysis of single-channel current records obtained with the patch clamp technique from primary cultures of rat skeletal muscle. Up to 10(6) open and shut intervals were analysed from each of five different excised patches of membrane containing a single fast Cl- channel.