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Defect segmentation has been a focal point in fabric inspection research, and remains challenging because it detects delicate features of defects complicated by variations in weave textures and changes in environmental factors (e.g., illumination, noise). Based on characteristics of fabric structure, an approach of using local contrast deviation (short for LCD) is proposed for fabric defect detection...
In vivo, cardiomyocytes are stimulated by electricity continuously. So electrical stimulation is an indispensable factor for cardiomyocytes cultured in vitro. In this study, the experimental group neonatal cardiomyocytes received electrical stimulation at different intensities and different frequencies by a electrical stimulation device in vitro. After stimulation, The morphology and beating of cardiomyocytes...
The wholesale price contract and the dual purchase contract are the most common contracts in supply chain because they are price-only contracts. The traditional researches always neglect the risk aversion of decision maker in these supply chain. In order to consider the risk aversion in the supply chain, the CVaR model of loss in revenue of retailer in the two styles contracts under a two-level supply...
To improve the reliability and security of running and operation for autonomous underwater vehicle (AUV), it is necessary to detect the faults of the navigation sensors fixed on it, whose outputs are fed back to the motion controller, and reconstruct the inaccurate running condition information when faults happened to any sensors. According to the advantage of principal component analysis (PCA) in...
When trying to discover knowledge on a collection of data, one of the first arising tasks is to identify groups of similar objects, that is, to carry out cluster analysis for obtaining data partitions. Thus, a decision must be taken for choosing the clustering result that produces the best data partition for a given data collection. In order to support such a decision, indexes for measuring the quality...
In medical education, pedagogical agents are widely used by computer learning systems to simulate tutors and/or mimic tutoring interactions, as well as offering just-in-time and adaptive feedback. Although the theoretical aspect of the pedagogical agents has been well-documented in literature, relatively fewer efforts have been made on how a pedagogical agent should be implemented in a real multimedia...
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