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Search Results: 1 - 10 of 8717 matches for " Zhongfu Tan "
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The Transformer Equipment Selection’s Update Decision Technical and Economic Analysis Model  [PDF]
Jincheng Shang, Zhongfu Tan, Chen Zhang, Liwei Ju
Energy and Power Engineering (EPE) , 2013, DOI: 10.4236/epe.2013.54B027
Abstract: Based on the current situation of the domestic transformer equipment selection, the paper analyses the SH15, S11 and S9 transformer from the angles of annual running power consumption, payback period, energy efficiency of the transformer, furthermore, determine the best optimal capacity, load factor and update Year of the SH15-type transformers. Example analysis results show that, from the point of view of the technical and economic the SH15-type transformer has better economic and environmental benefits, and large capacity SH15 transformer better comprehensive benefits.
THE MODIFIED SIMPLEX METHOD FOR TOPOLOGY OPTIMlZATION OF SPACE TRUSS STRUCTURE WITH MULTIPLE LOADING CONDITIONS
多工况作用下空间桁架结构拓扑优化的修正单纯形方法

Tan Zhongfu,Sun Huanchun,
谭中富
,孙焕纯

力学学报 , 1994,
Abstract: In this paper , the member forces are considered as design variables, andconvex quadratic programming model of topology optimization for space truss structure isgiven under mutiple loading conditions. The linear interdependent problem for memberforces and K-T multipliers is formed by making use of its K-T condition)and can be solvedby the modified simplex method.
The Rb-Sr age and geological implication of alkaline syenitic complex from Liangtun-Kuangdonggou at Gaixian, eastern Liaoning Province
Baoliang Xu,Guohan Yan,Baolei Mu,Linkun Tan,Zhongfu He,Guangsheng Qiao,Renhu Zhang
Chinese Science Bulletin , 1999, DOI: 10.1007/BF02909712
Abstract: Liangtun-Kuangdonggou complex, 30 km southeast of Gaixian Town, Liaoning Province, is composed of aegirine-augite hornblende syenite, aegirine-augite syenite, hornblende syenite, pyroxene syenite and syeno-aegirinolite. Rb-Sr isotopic data to the complex are reported and used for discussion of chronology and geological implication. They show that the complex occurred in early Proterozoic and is a tectonic sign of extension setting. Moreover, the date indicates that the Liaohe Group, which is metamorphic wall rock of the complex, formed over 1 900 Ma ago.
The Rb-Sr age and geological implication of alkaline syenitic complex from Liangtun-Kuangdonggou at Gaixian,eastern Liaoning Province

Baoliang Xu,Guohan Yan,Baolei Mu,Linkun Tan,Zhongfu He,Guangsheng Qiao,Renhu Zhang,

科学通报(英文版) , 1999,
Abstract: Liangtun-Kuangdonggou complex, 30 km southeast of Gaixian Town, Liaoning Province, is composed of aegirine-augite hornblende syenite, aegirine-augite syenite, hornblende syenite, pyroxene syenite and syeno-aegirinolite. Rb-Sr isotopic data to the complex are reported and used for discussion of chronology and geological implication. They show that the complex occurred in early Proterozoic and is a tectonic sign of extension setting. Moreover, the date indicates that the Liaohe Group, which is metamorphic wall rock of the complex, formed over 1 900 Ma ago.
A note onn-edge chromatic number
Sun Liang,Zhang Zhongfu
Chinese Science Bulletin , 1997, DOI: 10.1007/BF02883189
Abstract:
The lower bounds of classic Ramsey numberR(5,9) andR(5,10)
Jiguo Xie,Zhongfu Zhang
Chinese Science Bulletin , 1997, DOI: 10.1007/BF02882857
Abstract:
The Domestic Governance Countermeasure in Order to Enhance
Yuzhi Zhang,Zhongfu Jiang
International Journal of Business and Management , 2010, DOI: 10.5539/ijbm.v5n7p170
Abstract: The Chinese Communist Party is facing many problems in domestic governance. E.g. livelihood issues, corruption and so on. These issues will be solved by the ruling party's effective domestic governance in soft power which achieves the purpose to enhance the soft power of Chinese Communist Party.
Improved fire retardancy of thermoset composites modified with carbon nanofibers
Zhongfu Zhao and Jan Gou
Science and Technology of Advanced Materials , 2009,
Abstract: Multifunctional thermoset composites were made from polyester resin, glass fiber mats and carbon nanofiber sheets (CNS). Their flaming behavior was investigated with cone calorimeter under well-controlled combustion conditions. The heat release rate was lowered by pre-planting carbon nanofiber sheets on the sample surface with the total fiber content of only 0.38 wt.%. Electron microscopy showed that carbon nanofiber sheet was partly burned and charred materials were formed on the combusting surface. Both the nanofibers and charred materials acted as an excellent insulator and/or mass transport barrier, improving the fire retardancy of the composite. This behavior agrees well with the general mechanism of fire retardancy in various nanoparticle-thermoplastic composites.
Incorporating Personalized Contextual Information in Item-based Collaborative Filtering Recommendation
Min Gao,Zhongfu Wu
Journal of Software , 2010, DOI: 10.4304/jsw.5.7.729-736
Abstract: After reviewing the prior work and problem of collaborative filtering recommendation approaches, an approach incorporating personalized contextual information in item-based collaborative filtering is proposed to solve the problem. The approach provides recommendations based on user personalized contextual information besides the typical information on users and items used in most of the current recommendation systems. In this paper, several approaches are proposed to calculate context-based item differences, learn personalized contextual information for every user and predict ratings based on well-known item-based collaborative filtering Slope One. Finally, we experimentally evaluate our approach and compare it to Slope One. The experimental results show that our approach provides more precision recommendations than Slope One.
Processing and Structure of Carbon Nanofiber Paper
Zhongfu Zhao,Jihua Gou,Aurangzeb Khan
Journal of Nanomaterials , 2009, DOI: 10.1155/2009/325769
Abstract: A unique concept of making nanocomposites from carbon nanofiber paper was explored in this study. The essential element of this method was to design and manufacture carbon nanofiber paper with well-controlled and optimized network structure of carbon nanofibers. In this study, carbon nanofiber paper was prepared under various processing conditions, including different types of carbon nanofibers, solvents, dispersants, and acid treatment. The morphologies of carbon nanofibers within the nanofiber paper were characterized with scanning electron microscopy (SEM). In addition, the bulk densities of carbon nanofiber papers were measured. It was found that the densities and network structures of carbon nanofiber paper correlated to the dispersion quality of carbon nanofibers within the paper, which was significantly affected by papermaking process conditions.
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