Ping Duan

Learn More
— 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)
This paper adopts the HEBUT-2 mobile manipulator as the object of research, which is used for the leak detecting and repairing in the environment of dangerous chemical reactor. The kinematics model of HEBUT-2 mobile manipulator includes a 5 DOF (degree of freedom) manipulator and a 2 DOF mobile platform. The Denavit-Hartenberg method is used to analysis the(More)
This paper puts forward using CCD camera to recognize color path information and realize vision navigation, which simplifies the image feature abstraction and improves the robust and reliability of path recognition than gray image recognizing. Additional, in this paper, we design new fuzzy control strategy, when the curving extent of path satisfies definite(More)
This paper is concerned with the real-time controlling for the road construction machinery groups. Multi-agent system is capable to deal with the cooperation in dynamic and distributing environment, according to the characteristics of asphaltum-concrete road construction, the intelligent decision support system (IDSS) model based on multi-agent technology(More)
To explore the roles of mitochondrial Uncoupling Protein 2 (UCP2) in cumulus cells (CCs), human CCs were cultured in vitro, and the UCP2 was inhibited by treatment with Genipin, a special UCP inhibitor, or by RNA interference targeting UCP2. No significant differences in adenosine triphosphate levels and the ratio of ADP/ATP were observed after UCP2(More)
PURPOSE The literatures show that photodynamic therapy (PDT) and intravitreal ranibizumab (IVR) have their own specific advantages in treating polypoidal choroidal vasculopathy (PCV). Using a meta-analysis, we want to provide some suggestions for the clinical application of the two treatments to PCV patients through a comparison of the functional outcomes(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)
— Detection of causality is an important and challenging problem in root cause and hazard propagation analysis. A new information theory-based measure, transfer 0-entropy, is proposed for causality analysis on the basis of the definitions of 0-entropy and 0-information without assuming a probability space. For the cases of more than two variables, a direct(More)