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In this paper, we apply NHPP model example to s/w process in order to get to know s/w reliability, The test is constructed by a test zig of commercial product loaded real embedded sytstem s/w. It is established to s/w reliability prediction and estimation of real-time embedded system s/w. It is computed the prediction value of cumulative failures, the failure intensity, the reliability and the estimation value of MTTF, Failure Rate. To the more realization of high reliability in the real-time embedded system s/w, if the embedded system s/w is ensured to the test coverage and constructed to stable s/w process & operating system, we can improve the performance and the reliability characteristic of the real-time embedded system s/w.
Object of a real-time system, that performs exact information based on the real-time constraint. is required for an improvement of high reliability. The fault-tolerant task scheduling strategy of multiprocessor as using a distributed memory based on a hardware redundancy can be improved into a high reliability of the real-time system. Therefore, this paper is shown to analyze the reliability of the system by using the transfer parameter and make the modeling in reference to a minimization of the fault-tolerant task scheduling strategy which uses a percentage of task missing and deadline parameter based on optimization task size.
박한진(Han-Jin Park),이철호(Chul-Ho Lee),차달선(Dal-Seon Cha),조재우(Jae-Woo Cho),조규혁(Kyu-Hyuk Cho),최양규(Yang-Kyu Choi),현병화(Byung-Hwa Hyun),조진원(Jin-Won Cho),한상섭(Sang-Seop Han),송창우(Chang-Woo Song) 한국실험동물학회 2004 Laboratory Animal Research Vol.20 No.2
The cataract mutant rat which showed lens opacity was found in the colony of Sprague-Dawley rat at Korea Research Institute of Chemical Technology (KRICT) in 1996. The mode of inheritance of affected rats was autosomal recessive. These cataractous rats were mated by sister and brother to 27th (F₂₇) generation and named as Korea Cataract Rat (KCR). We performed genetic monitoring of KCR rat using biochemical and microsatellite markers to determine their genetic identified homozygous and distinctive genetic profile. In biochemical monitoring, six rats from each of the F₁₈/F₁₉F₂₀ were tested using 13 biochemical markers. In molecular genetic monitoring, nine rats from the F₂₅ and F₂₆ were tested using 13 microsatellite markers. No differences were found among the genetic profiles of the F₁₈/F₁₉F₂₀ in biochemical monitoring. Also, in the molecular genetic monitoring, we identified that both genetic profiles of F₂₅ and F₂₆ were the same. The genetic profile of KCR rats was unique against the other major rat strains. In addition, the polymorphysm of KCR rat for microsatellite markers was different from the other strains. These results suggest that KCR rat is genetically well qualified as far as in this test and it has been well established as a new inbred strain which has a novel genetic profile and cataract trait.