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Articles by Kai Kang
Total Records ( 3 ) for Kai Kang
  Shushan Zhang , Xing Wang and Kai Kang
  Object monitoring is one of the key technologies of logistics information platform system. The study introduced an application method of machine vision technology in the logistics center monitoring system, improved covariance matrix algorithm to monitor objects in the logistics center. Against the technical difficulties of objects detection, the covariance matrix algorithm was applied to monitor objects in the logistics center and against the shortcomings of covariance matrix algorithm in the process of monitoring objects, the study proposed a method of path prediction and template dynamic adjustment. Experiments show that the method can effectively monitor objects in the logistics center, the improved method can not only adapt quickly to pose and scale variations of objects, but also track accurately and continuously those temporarily occluded objects, has good robustness. The method provides a new solution of monitoring objects in the logistics system.
  Zunfeng Liu , Kai Kang and Chunling Zhang
  In this study, we use the system analysis and optimization of GIS spatial analysis study the allocation of resources of port. First, we use optimize given resource allocation model which of yard space analysis; Second, give the berths dynamic resource allocation optimization function; then GIS spatial analysis is given in the port resource optimization. Port for optimal use of resources space and impact factor model for quantitative analysis and visualization used spatial analysis model which provides effective analytical approach to role and explores the mechanism. Finally, we give application examples. Based on the theoretical analysis and comparative analysis we achieve optimal allocation of resources and development plans in coastal port, which provides a theoretical basis and empirical basis in port resources study.
  Na Li , Jie Song , Liang Kong , Shao-Heng Li , Ya-Nan Jiao , Yu-Hui Yan , Ying-Jia Yao , Ya-Kun Meng , Xiao-Fei Li , Miao-Miao Tong , Nan Zhang , Kai Kang , Ting-Guo Kang and Jing-Xian Yang
  Background and Objective: Mechanical trauma injury is caused by some external force which does harm to the vasculature, tissues and neighboring neuronal cells. This injury is a serious insult to neuronal cells which may release lactate dehydrogenase as the characteristics of cell damage. The release of inflammatory cytokines in injury cells is a normal immune response but the over expression of some pro-inflammatory cytokines such as interleukin-6 and tumor necrosis factor-α are detrimental to wound recovery. Suppression of pro-inflammatory cytokines is beneficial to alleviate mechanical trauma injury-induced cell damage. The present study aims to establish the mechanical trauma injury model in vitro and investigate the protective effect of 2,3,5,4’-tetrahydroxystilbene-2-O-glucoside on this model and its mechanism. Materials and Methods: The SH-SY5Y cells were used to establish the mechanical trauma injury model in vitro by scratching out the monolayer and generating an area devoid of cells. Then, the extent of cell damage of the model was measured by lactate dehydrogenase content determination and 12 h was confirmed as the key time point to explore 2,3,5,4’-tetrahydroxystilbene-2-O-glucoside concentration given. The cell viability was measured by cell counting kit-8 to determine the optimal concentration of drug administration. The extent of cell damage was detected by immunofluorescence analysis to observe whether 2,3,5,4’-tetrahydroxystilbene-2-O-glucoside can protect the integrity of the cell structure TUNEL staining was used to detect whether it can decrease cell apoptosis. Finally, Tested the inflammatory cytokine levels (interleukin-6, interleukin-10 and tumor necrosis factor-α) by enzyme-linked immunosorbent assays, reverse transcription-polymerase chain reaction and western blotting to clarify the mechanism of cytoprotection. Data were assessed by the SPSS version 13.0. Results: The 2,3,5, 4’-tetrahydroxystilbene-2-O-glucoside increased viability of SH-SY5Y cells and the migrative ability, protected the integrity of cell structure, reduced apoptosis, decreased pro-inflammatory cytokine levels (interleukin-6 and tumor necrosis factor-α) and increased anti-inflammatory cytokine level (interleukin-10) in mechanical trauma injury-induced SH-SY5Y cell model. Conclusion: These studies demonstrate that 2,3,5, 4’-tetrahydroxystilbene-2-O-glucoside relieves the mechanical trauma injury-induced damage in SH-SY5Y cells by attenuating the levels of inflammatory responses. This might help us to further understand the pharmacological role of 2,3,5,4’-tetrahydroxystilbene-2-O-glucoside in anti-inflammation and neuroprotection in the neural cells.
 
 
 
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