Orderings of component level versus system level at active redundancies for coherent systems with dependent components

This paper investigates the issue of stochastic comparison of multi-active redundancies at the component level versus the system level. Based on the assumption that all components are statistically dependent, in the case of complete matching and nonmatching spares, we present some interesting comparison results in the sense of the hazard rate, reversed hazard rate and likelihood ratio orders, respectively. And we also obtain two comparison results between relative agings of resulting systems at the component level and the system level. Several numerical examples are provided to illustrate the theoretical results.

Interests, Gender Differences, Impulsivity and Reflectivity among Year Three Pupils in London (U.K.) Schools

The achievement of year 3 pupils in the classroom may be influenced by how they are taught familiar topics. That is, it is suggested that pupils may develop interests such as hobbies which are related to academic studies at school. It is therefore hypothesised that the extent to which year 3 pupils are interested in school subjects is a major factor contributing to performances in terms of time taken to complete tasks, errors made during completion and the type of strategies pupils use for successful completion of tasks. The extent to which pupils make errors and the time it takes to complete matching tasks of interest, is used as an indicator of how ‘reflective or impulsive’ pupils are, and this has implications for academic achievement. Thirty girls and thirty boys, (7-8 years old) were recruited for a study across five primary schools in a London Borough (England, U.K.). Interest and lack of interest in things was elicited using an interview and simple matching tasks were used to establish performance on tasks of interest and disinterest. Boys generally made slightly more errors than girls and were quicker when making matches. Girls used ordered strategies to make matches compared with random/global strategies for boys. The implications for this research are: - training of pupils to problem-solve using appropriate strategies; establishing ways of developing students’ subject interests and encouraging teachers to find ways of using suitable styles for individual students’ needs who are either reflective or impulsive.

Genome Subsequences Assembly Using Approximate Matching Techniques in Hadoop

Sequencing DNA will provide valuable insights into several aspects of human life. The major requirement of this domain is for a faster and more accurate sequencing mechanism. The process becomes difficult due to the huge size of DNA. This paper presents an effective genome assembly technique in Hadoop architecture using MapReduce. The fragment assembly is based on initially matching the subsequences and then depending on the matching levels, the final complete matching subsequences are filtered. The consensus alignment and recalibration are performed using Greedy approximate matching techniques. The experimental results show that our approach is more accurate and exhibits better coverage; however, the processing time is found to be high. In future, our contributions will be based on reducing the processing time. Discussions about these techniques are also presented in this paper.

Target Recognition Based on Polar Coordinate Template Matching

In order to improve the rotation invariant property of the conventional template matching method, a novel template matching based on the polar coordinate was proposed. The origin of the polar coordinate was at the center of the template. And the matching result was central symmetry, which made the method have the translation and rotation invariant properties simultaneously. The recognition process was divided into two phased. In the first phase, gray information was used to complete matching calculation, and some candidate points were selected according to the matching result. In the second phase, edge strong matching of candidate points was completed. The candidate point, where the sum of gray matching value and edge strong matching value was minimal, was determined as the best matching point. Experiments results show that this method can meet the real-time requirement of the TV tracking system.