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On the Diophantine Equation x^2-kxy+y^2+lx=0

Chinese Annals of Mathematics,Series B 2013年第5期34卷 715-718页

作者： yongzhong hu Maohua LE Department of Mathematics Foshan University Institute of Mathematics Zhanjiang Normal College

Let l be a given nonzero integer. The authors give an explicit characterization of the positive integer k that makes the Diophantine equation x2 - kxy ＋ y2 ＋ 1x = 0 have infinitely many positive integer solutions （... 详细信息

关键词： Quadratic Diophantine equation Solvability Counting solutions

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Experimental study on the seismic performance of new sandwich masonry walls

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Earthquake Engineering and Engineering Vibration 2013年第1期12卷 77-86页

作者： Xiao Jianzhuang Pu Jie hu yongzhong Department of Building Engineering Tongji University State Key Laboratory for Disaster Reduction in Civil Eng. Tongji University

Sandwich masonry walls are widely used as energy-saving panels since the interlayer between the outer leaves can act as an insulation *** types of sandwich walls are continually being introduced in research and applications,and due to their unique bond patterns,experimental studies have been performed to investigate their mechanical properties,especially with regard to their seismic *** this study,three new types of sandwich masonry wall have been designed,and cyclic lateral loading tests were carried out on five *** results showed that the specimens failed mainly due to slippage along the bottom cracks or the development of diagonal cracks,and the failure patterns were considerably influenced by the aspect *** was undertaken on the seismic response of the new walls,which included ductility,stiffness degradation and energy dissipation capacity,and no obvious difference was observed between the seismic performance of the new walls and traditional *** were made between the experimental results and the calculated results of the shear *** is concluded that the formulas in the two Chinese codes（GB 50011 and GB 50003） are suitable for the calculation of the shear capacity for the new types of walls,and the formula in GB 50011 tends to be more conservative.

关键词： sandwich wall seismic performance shear behavior cyclic loading test

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Experimental study on the compressive performance of new sandwich masonry walls

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Frontiers of Structural and Civil Engineering 2013年第2期7卷 154-163页

作者： Jianzhuang XIAO Jie PU yongzhong hu Department of Building Engineering Tongji UniversityShanghai 200092China

Sandwich masonry wall,namely,multi-leaf masonry wall,is widely applied as energy-saving wall since the interlayer between the two outer leaves can act as insulation *** types of sandwich walls keep appearing in research and application,and due to their unique connection patterns,experimental studies should be performed to investigate the mechanical behavior,especially the compressive performance.3 new types of sandwich masonry wall were investigated in this paper,and 3 different technical measures were considered to guarantee the cooperation between the two leaves of the *** on the compression tests of 13 specimens,except for some damage patterns similar with the conventional masonry walls,several new failure patterns are found due to unique connection construction *** were made between the tested compression capacity and the theoretical one which was calculated according to the Chinese Code for Design of Masonry *** results indicate that the contributions of the 3 technical measures are *** modification coefficient(γ)was suggested to evaluate the contribution of the technical measures on the compression capacity,and then a formula was proposed to evaluate the design compression capacity of the new sandwich masonry walls.

关键词： sandwich wall insulation wall connection compressive performance compression test

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有关王阳明的两个考证

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中国哲学史 2006年第1期 77-82页

作者：胡永中北京师范大学哲学与社会学学院

王阳明《年谱》所谓“始揭‘致良知’之教”的确切含义是指第一次明确提出“致良知”的话头;作为其立论依据的“遗书守益”之“书”可疑之处甚多;王阳明正式提出“致良知”话头的时间,很可能不在正德十六年辛巳,而在嘉靖三年甲申。《年... 详细信息

王阳明《年谱》所谓“始揭‘致良知’之教”的确切含义是指第一次明确提出“致良知”的话头;作为其立论依据的“遗书守益”之“书”可疑之处甚多;王阳明正式提出“致良知”话头的时间,很可能不在正德十六年辛巳,而在嘉靖三年甲申。《年谱》对“南大吉续刻《传习录》”时间的认定是错误的,南刻《传习录》成书时间当在嘉靖五年八月与嘉靖七年十月之间。

关键词：王阳明年谱传习录致良知时间

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Urban Public Transportation Network Planning Method Based on Transit-oriented Strategy

Urban Public Transportation Network Planning Method Based on...

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2012年计算机应用与系统建模国际会议

作者： Ming Gu Bin xu yongzhong hu Transportation and Management College Dalian Maritime University

This article proposed a transit-oriented planning for urban public transport situation. Adjust the existing passenger OD matrix according to the city development plan. Propose an optimization on the adjusted OD matrix to achieve the shortest travel time, direct access to the largest passenger flow target. Heuristic method to optimize the use of public transportation network, according to city traffic conditions and specific feedback on the optimization results are corrected, obtained satisfactory results.

关键词： Transit-oriented OD Matrix Heuristic Feedback and adjustment

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