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Researches on the Prototype Implementation of Visual Data Mining Techniques
Guiliang Feng,Zhonghua Li,LianChun Zhang 보안공학연구지원센터 2014 International Journal of Database Theory and Appli Vol.7 No.6
This paper describes the core functional components and a visualization module implementation process of visual data mining technology prototype system. The first part introduces the implementation technology of visual data mining technology prototype system and then describes the overall design of the architecture and features of visual data mining technology prototype system; Then paper describes the common components in the visualization of data mining technology prototype system. Research achievements of this article provides a useful reference to optimize visual data mining techniques.
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Key Technology for Food-Safety Traceability Based on a Combined Two-Dimensional Code
Zhonghua Li,Xinghua Sun,Ting Yan,Dong Yang,Guiliang Feng 한국정보처리학회 2023 Journal of information processing systems Vol.19 No.2
Current food-traceability platforms suffer from problems such as inconsistent traceability standards, a lack ofpublic credibility, and slow access to data. In this work, a combined code and identification method wasdesigned that can achieve more secure product traceability using the dual anti-counterfeiting technology of aQR code and a hidden code. When the QR code is blurry, the hidden code can still be used to effectively identifyfood information. Based on this combined code, a food-safety traceability platform was developed. Theplatform follows unified encoding standards and provides standardized interfaces. Based on this innovation,the platform not only can serve individual food-traceability systems development, but also connect existingtraceability systems. These will help to solve the problems such as non-standard traceability content,inconsistent processes, and incompatible system software. The experimental results show that the combinedcode has higher accuracy. The food-safety traceability platform based on the combined code improves thesafety of the traceability process and the integrity of the traceability information. The innovation of this paperis invoking the combined code united the QR code‘s rapidity and the hidden code‘s reliability, developing aplatform that uses a unified coding standard and provides a standardized interface to resolve the differencesbetween multi-food-traceability systems. Among similar systems, it is the only one that has been connected tothe national QR code identification platform. The project has made profits and has significant economic andsocial benefits.
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Distribution and dynamics of esterase alleles in Culex pipiens complex in China
Shuaiguo Yan,Ping Nan,Feng Cui,Zhonghua Wu,Chuanling Qiao 한국응용곤충학회 2013 Journal of Asia-Pacific Entomology Vol.16 No.1
To investigate insecticide resistance and dynamic changes of carboxylesterase polymorphism in mosquitoes with time in the Culex pipiens complex (Diptera: Culicidae), nine field mosquito populations were collected in China. The resistance levels of fourth-instar larvae to organophosphate (dichlorvos, parathion, and chlorpyrifos),carbamate (fenobucarb and propoxur), and pyrethroid (permethrin, deltamethrin and tetramethrin)insecticides were determined by bioassay. Larvae had more resistance to organophosphate insecticides than to carbamate insecticides. A low but significant resistance was observed for carbamate insecticides. The resistance to pyrethroid insecticides varied from sensitive to high. Starch gel electrophoresis revealed the presence of the overproduced esterases B1, A2B2, A8B8, A9B9, B10 and A11B11. The frequency of each overproduced esterases varied depending on its regional localities. Compared with published surveys, the C. pipiens complex,which exhibited a high polymorphism of applied esterase alleles in China, showed dynamic evolution over time under local specific insecticide selection. The results are discussed in the context of recent alterations to insecticide campaigns, and in the evolution of resistance genes in Chinese C. pipiens populations.
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Tian Tian,Xinyu Liu,이응석,Jingyang Sun,Zhonghua Feng,Long-Xuan Zhao,Chunhui Zhao 대한약학회 2017 Archives of Pharmacal Research Vol.40 No.4
A series of nitrogen-containing derivatives ofoleanolic acid and ursolic acid were prepared by a modificationat C-28 position via esterification with 2-hydroxyaceticacid followed by amidation with amines, such aspiperazine, N-methylpiperazine, and alkane-1, 2-diamines,alkane-1, 4-diamines, alkane-1, 6-diamines. In vitroantiproliferative activities of the compounds preparedtowards MCF-7, Hela and A549 cell lines were evaluatedby a MTT method to show that OA-5a, OA-5b, OA-5c andUA-5a showed somewhat improved antiproliferativeactivities against MCF-7, Hela and A549 cells comparingto that of the positive control, gefitinib.
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