棉花施用惠满丰有机复混肥增产效应研究

在当季不施肥,皮棉产量50kg/667m~2以上的生产条件下,棉花施用惠满丰有机复混肥30-70kg/667m~2,伏前桃增加1-1.5个,株高增加9.9-17.1cm,茎粗增加0.2-0.8mm,有效果枝增加约1.3个,单株成铃数增多1.1-3.1个,单铃重约增加0.4-0.5g,霜前花率提高3-9个百分点,衣分、子指也有所提高,比对照增产皮棉14.1-31.8kg/667m~2,增幅27.4％-61.1％(平均45％)。在等养分量情况下,惠满丰有机复混肥肥效优于化肥。惠满丰有机复混肥的经济合理施肥量为70kg/667m~2。     

服务经济理论演变

文章划分了服务经济理论发展的萌芽、产生、发展及深化阶段,并就各阶段产业背景和主要理论观点进行了总结分析,最后指出是经济社会进步推动了服务业的升级,同时服务的创新也成为经济增长的引擎。大力推进中国服务经济的发展具有重要的战略意义。     

Statistical Power of the Multiple Domain Latent Growth Model for Detecting Group Differences

The latent growth model (LGM) in structural equation modeling (SEM) may be extended to allow for the modeling of associations among multiple latent growth trajectories, resulting in a multiple domain latent growth model (MDLGM). While the MDLGM is conceived as a more powerful multivariate analysis technique, the examination of its methodological performance is very limited. Hence, the present study compared the power of the MDLGM with that of a set of univariate LGMs for detecting group differences in growth rates over time using a Monte Carlo study with a two-group and two-domain design. The results indicated that there were different scenarios where the power rates for the MDLGM were greater than that of the set of LGMs (and vice versa) due to a joint function of the two domains’ intercorrelation size and the group difference effect size.     

对入世后中国金融格局的思考

随着改革的逐步深入，我国的经济增长结构发生了显的变化，但我国的金融改革却明显滞后，固有的金融格局已不能适应多元的经济增长格局。入世所带来的外资银行全面进入，使得国内金融市场原有模式受到较大的冲击。这就要求国家在金融格局安排方面作出必要的调整。本阐述了经济增长与现有金融格局的矛盾，基于对金融格局中各主体的深入分析，提出了相关的政策建议，并构建出了一个适宜的金融格局。     

先秦秦汉时期的伐木时间问题

本文从先秦秦汉文献出发,分析了先秦秦汉时期伐木以时的生产实践规律,讨论了总取林木和随时取林木的时间问题以及伐木以时在尊重林木生长规律和拥有可持续使用林木资源上的意义。     

新时期我国农村职业教育发展困境与对策

新时期产业转型与就业转型依赖农村职业教育发展。我国农村职业教育发展面临社会偏见、招生困难、经费短缺、师资紧缺等困难。国家应该实行农村中职义务教育、严格准入制度、增加投入以及校企合作、专业与产业有机对接等措施帮助农村职业教育走出困境。     

新疆财政收入与经济增长相关关系分析

财政收入与经济增长密切相关。文章利用回归分析和因素分析两种方法,对经济增长与财政收入之间的关系做了一些探讨,并对新疆财政收入与经济增长的现状做了分析,指出新疆经济发展中存在的不足以及今后增加财政收入的途径。     

Flexural Behaviour of High－Strength Steel Fiber－Reinforced Concrete Beams

ＦｌｅｘｕｒａｌＢｅｈａｖｉｏｕｒｏｆＨｉｇｈ－ＳｔｒｅｎｇｔｈＳｔｅｅｌＦｉｂｅｒ－ＲｅｉｎｆｏｒｃｅｄＣｏｎｃｒｅｔｅＢｅａｍｓＱｉａｎＣｈｕｎｘｉａｎｇ（钱春香）（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｅｒｉａｌｓＳｃｉｅｎｃｅａｎｄＥｎｇｉｎｅｅｒｉ...     

弹塑性断裂的内参量热力学分析——Ⅰ.线弹性裂纹体的裂纹扩展

本文在内参量热力学的理论框架内详细讨论了线弹性裂纹体的裂纹扩展问题。对线弹性断裂力学中所涉及到的各种能量关系作了统一的整理,其中包括Irwin的弹性能释放率——裂纹扩展力,Griffith的脆性断裂准则,以及Irwin-Kies的柔度公式和Paris的位移公式。本文以中心裂纹体为例,详细计算了裂纹扩展的稳定性,并区分恒载荷和恒位移两种情况,对材料断裂韧性测试中所遇到的失稳扩展,稳定扩展以及进发现象提供了理论说明。     

A Process Approach to Community-Based Education: The People’s Free University of Saskatchewan

On the basis of insights provided by Whitehead and John Cobb, I show how the People’s Free University of Saskatchewan (PFU) is a working model of free, open, community-based education that embodies several characteristics of Whitehead’s philosophy of education. Formed in opposition to the growing commercialization at the original “people’s university,” (the University of Saskatchewan) the PFU has spawned distinctive ideals of its own. The PFU reflects Whitehead’s belief in the importance of shared knowledge fostered by community-based education, the value of abstract and practical knowledge, and the power of the imagination to establish a community of learners capable of acting freely together.