试论清末的铁路立法思想——以铁路总务为中心

清末的铁路立法思想对当时的铁路立法有很大影响 ,并进而影响到当时的铁路事业。这些立法思想中 ,关于铁路总务的主张便是很重要的一个方面。时人对铁路的性质已有一定的认识 ,主张设立铁路专管机构、统一官制 ,设立路警 ,制定路警条例 ,而政府的政策总力图以控制和主导为目的 ,这些都对当时的铁路立法产生了重要的影响     

幂商和与幂和差不等式及其应用

本文根据加权均值不等式推广了文[1]的主要结论,并利用推广结构对一组国内外不等式赛题进行了推广简证.     

光纤光栅传感系统信号解调技术的研究

讨论光纤光栅传感信号解调的基本原理,分析常用解调方法的工作机理和特点,并基于测频思想提出一种能够实现静态和动态传感信号解调的方法。     

21世纪基础教育的文化使命

21世纪基础教育改革的社会基础和社会功能得到了新的阐释。例如,在基础教育改革的经济基础方面,人们已经将着眼点从计划经济转移到社会主义市场经济,并敏锐地感觉到知识经济给整个教育体系提出的挑战。在基础教育改革的政治基础方面,人们一方面看到冷战结束后国际政治环境朝着和平与发展的方向变化,另一方面又看到由于个别发达资本主义国家的意识形态偏见给全球特别是意识形态不同的发展中国家所带来的巨大威胁。在这种情况下,加强社会主义、集体主义和爱国主义教育刻不容缓,加强社会主义民主教育培养合格的民主公民刻不容缓。在基础教育改…     

区域开发战略的伦理思考及建构

根据中央实施西部开发战略和西部区域当前发展的现实，着重阐明和研究发展西部经济所采取的模式与方式，这是人们普遍关注和要解决的重要问题。并充分论证了实施西部开发必然加强生态保护和建设，树立生态伦理观的内容。集中论述了建立新型道德观对实施西部开发战略的影响和作用，从而保证西部经济的可持续发展。     

全新在线滴定技术的研究与应用

A new on-line titration method and device based on a new technique-continuous flow titration is described.By the means of electronically controlled switching of a solenoid valve,the main component of the system,the equivalent point of the titration is easily determined.Several kinds of mixing tools were examined.whereby a self-made mixing chamer with minimum volume gave best results and was therefore used in the dveice,The error of the titration is within 0.2% and the relative standard deviation(RSD) is below 1.2%,The results show no difference compared with a commercial device,meanwhile the new on-line titration system is cheaper and fully automated and thus easy to hand and less slovent consumption.     

Do rice water weevils and rice stem borers compete when sharing a host plant?

The rice water weevil (RWW) Lissorhoptrus oryzophilus Knsehel (Coleoptera: Curculionidae) is an invasive insect pest office Oryza sativa L. in China. Little is known about the interactions of this weevil with indigenous herbivores. In the present study, adult feeding and population density of the weevil, injury level of striped stem borer Chilo suppressalis (Walker) (Lepi-doptera: Pyralidae) and pink stem borer Sesamia inferens (Walker) (Lepidoptera: Noctuidae) to rice, as well as growth status of their host plants were surveyed in a rice field located in Southeastern Zhejiang, China, in 2004 with the objective to discover interspecific interactions on the rice. At tillering stage, both adult feeding of the weevil and injury of the stem borers tended to occur on larger tillers (bearing 5 leaves) compared with small tillers (bearing 24 leaves), but the insects showed no evident competition with each other. At booting stage, the stem borers caused more withering/dead hearts and the weevil reached a higher density on the plants which had more productive tillers and larger root system; the number of weevils per tiller correlated nega-tively with the percentage of withering/dead hearts of plants in a hill. These observations indicate that interspecific interactions exist between the rice water weevil and the rice stem borers with negative relations occurring at booting or earlier developmental stages of rice.     

关于幂等矩阵乘积的迹的不等式

研究一些未必对称的矩阵乘积的迹的不等式，给出了关于幂等矩阵Bellman不等式成立的条件．     

建设和谐社会与职业教育发展

建设社会主义和谐社会是社会各个子系统、各项事业发展的共同目标。“和谐”是职业教育的应有之义,和谐职业教育的基本特征包括:公平公正、以人为本、协调发展、均衡合理。职业教育的和谐发展对于建设和谐社会的突出贡献表现为,促进社会人才结构均衡、社会合理流动、社会公平正义和社会持续发展。政府、职业学校和社会都应该为促进职业教育的和谐发展承担相应的责任。