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— The detection of direct causality, as opposed to indirect causality, is an important and challenging problem in root cause and hazard propagation analysis. Several methods provide effective solutions to this problem when linear relationships between variables are involved. For nonlinear relationships, currently only overall causality analysis can be(More)
Calcium Silicate Hydrate (C-S-H) is the main hydration product of Portland cement, it has an important impact on the properties of cement and causes a wide range of study. In recent years, superplasticizer, of which the main component is organic macromolecules, has become an important component in preparation for high performance concrete. Molecular(More)
soil erosion is one of the serious natural disasters in China. Soil erosion control is the main content of the comprehensive management of the river basin. Soil erosion in humid region is mainly caused by hydraulic erosion. In this paper, Shangri La County is taken as a study area; the 2014 Shangri La County soil erosion amount is calculated by modified(More)
Binocular stereo vision calibration is a hot research issue in the field of computer vision. In this paper, by means of 2D planar checkerboard calibration plate, essential matrix combined with calibration method of Zhang Zhengyou is used for a stereo vision calibration experiment. Firstly, corners of checkerboard is extracted by Harris algorithm.(More)
— Direct causality detection is an important and challenging problem in root cause and hazard propagation analysis. Several methods provide effective solutions to this problem for linear relationships. For nonlinear situations, currently only causality analysis can be conducted, but the direct causality cannot be identified based on process data. In this(More)