Xia Yuan

Learn More
Many studies of Parkinson's disease suggest that oxidative stress is involved in the neurodegenerative process. Baicalein has been shown to have antioxidant effects. The present study examines the effect of baicalein on 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced neurotoxicity in C57BL/6 mice. MPTP treatment impaired spontaneous motor(More)
BACKGROUND Human kallikrein gene 6 (KLK6) is a member of the human kallikrein gene family (Kallikreins, KLKs). Human kallikrein-related peptidase 6 (hK6) is a trypsin-like serine protease encoded by the KLK6, has been reported to be highly expressed in several cancers including gastric cancer. In this study, we investigated the the correlation of hK6(More)
Methods previously for K-nearest neighbors searching usually inefficient face millions of points. We propose two efficient K-nearest neighbors searching algorithms for unorganized cloud points: parameter adjustable single axes searching algorithm and algorithm based on Morton-code of cloud points. The first algorithm uses direct way to search K-nearest(More)
BACKGROUND As a Chinese Traditional Medicine product, Kuntai capsule could improve the peri-menopausal symptoms in postmenopausal women. But it is still not clear whether Kuntai capsule has a good effect on alleviating peri-menopausal symptoms induced by gonadotropin releasing hormone agonist (GnRH-a) treatment. The purpose of this study was to investigate(More)
Automatic segmentation without any user interaction is very difficult due to potentially high complexity of the scene. No wonder, most existing segmentation algorithms are based on user interactions. However, automatic segmentation in some special situations has great significance. In this paper, we introduce an automatic segmentation algorithm for frontal(More)
Propose a road-surface abstraction algorithm which suitable for structured and semi-structured road environments. Algorithm uses fuzzy cluster method which based on maximum entropy theory to cluster ladar points that belong to a scan line. After fitting clustered data linearly, one can abstract straight lines that belong to road-surface by their location(More)
Superpixels are perceptually meaningful atomic regions that can effectively capture image features. We propose a novel scale adaptive supervoxel segmentation algorithm for RGB-D images, i.e., small supervoxels in content-dense regions (e.g., with high intensity or color variation) and large supervoxels in content-sparse regions. Among various methods for(More)
Propose a terrain classification algorithm from ladar data for autonomous navigation. The algorithm using multi-feature which including geometrical feature and color feature different from the classical method that based on single geometric feature. Average normal vector covariance matrix of the point and eigenvalue of the coordinate covariance matrix were(More)