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1.
根据给排水工程专业特点,构造给排水专业的课程体系及其相互关系,制作课程体系信息库并应用Frontpage2000软件将其链接起来,在互联网上供本专业学生查阅,达到了指导、帮助学生综合利用自己所学知识进行课程预习、复习及毕业设计的目的.  相似文献   
2.
王涛 《价值工程》2014,(16):286-287
文章通过跟踪调查实际教学中的《建筑给排水》课程,研究和寻找建筑专业课程在探究型教学模式下的应用和效果,对教学中的问题进行分析,提出适合专业教学的方法,并就如何更加完善《建筑给排水》的教学模式进行讨论。  相似文献   
3.
运用价值工型原理,优选井下排水方案节约投资915.87万元,同时缩短建井工期一年,可减少利息支出3161.9万元.  相似文献   
4.
There has been renewed interest in the academic discourse on land reforms due to recent high profile works suggesting a positive correlation between reforms and poverty reduction. Land is held under different tenure regimes in different regions, countries and communities. These are often in the form of community tenure, state tenure, individual tenure or a mixture of two or three of them. However, land reformers are in constant debate as to which of the three offers the most appropriate pathway to poverty reduction. The policy outcomes of such debates have been to superimpose one tenure option over the other in differing situations. This article conceptualises a metaphorical approach to land reforms grounded on general systems theory. It advocates for contextualised methodological rigour and an approach to land reforms reliant on the influencing variables of alternative land tenure regimes as opposed to wanton superimposition of one form of tenure over the other.  相似文献   
5.
Drainage and loss of wetland sites is a major problem of the agricultural landscape, as it reduces the landscape’s ability to retain water, nutrients, matter, and minimize erosion. With this in mind, the issue of the ability of wet sites to retain radionuclides and contaminated water in the case of a radiation accident was studied. In 2013, field research examined the occurrence of wetland retention sites in the emergency planning zone (EPZ) of the Temelín nuclear power plant (NPP; Czech Republic). As data sources, wetland biotopes (European network Natura 2000) were considered; in addition, retention features were field mapped, i.e. landscape elements of a wetland nature not normally considered nationally significant for conservation. Within the emergency zone, 2854.7 ha of wetland biotopes were registered and 318.9 ha retention features mapped. Density of retention sites (in ha/km2) per cadastre (local administrative units) was used to represent their spatial distribution within the zone. For an assessment of possible revitalization measures, leading to an increase in the landscape’s retention ability, spatial changes in the area of retention sites between 2013 and the mid-19th century, a period before extensive drainage of landscape occurred and a simplification of its structure, were mapped. Historic land maps (The Imperial Obligatory Imprints of the Stable Cadastre) were used as a basis of information on the occurrence and area of fens and wet meadows (4771.5 ha).For spatial comparisons of drained and undrained landscape in the past and present, the density of retention sites per cadastre was calculated. In the mid-19th century, 80% of cadastres had a density of retention sites exceeded 5 ha/km2; in 2013 only 40% of cadastres achieved this. In the most part, drained areas of the zone belong to the central part (around the power plant), as well as the EPZ’s eastern and south-eastern regions. From the density maps of retention sites, as well as from the stable cadastre imprints, it is possible to identify areas and retention features suitable for wetland restoration, thus leading to an increase in the retention capacity of the landscape in terms of water and radionuclide retention. Suggestions as to how to restore and turn retention features into semi-natural wetlands, as well as integrating small wetlands into an agriculture landscape are outlined.  相似文献   
6.
论流域可持续发展中的效率与公平关系   总被引:3,自引:1,他引:3  
本文认为,效率与以平关系既是抽象的,也是具体的,效率与公平关系的研究应与具体的地域空间相联系,流域是一种特殊类型的地域空间,流域的上中下游之间存在着天然的社会,经济和生态的联系,探讨流域内效率与公平的关系,既是实现流域可持续发展的需要,也有利于效率与公平问题研究的深化。  相似文献   
7.
介绍陶瓷过滤机脱水系统三种排液装置的工作原理与结构,说明自排液装置改进设计要点和工作原理,经对比分析,改进后的自排液装置性能稳定,故障率低;并从四个方面阐述了陶瓷过滤机的发展方向。  相似文献   
8.
目的:通过对负压封闭引流技术(VSD)与传统换药(CDC)两种方法治疗四肢软组织缺损创面医疗成本进行分析,为医疗医疗决策提供理论依据.方法:收集西安交通大学附属第一医院创伤整形科2008年1月至2011年6月期间收治入院的四肢软组织缺损创面患者共216例,VSD治疗者106例,CDC治疗者110例.通过比较两组病人治疗过程中提供医疗服务所需直接医疗费用,进行医疗成本分析.结果:VSD组住院总费用高于普通换药组;VSD组手术费用低于CDC组,特殊耗材费用VSD组高于CDC组;VSD组换药费用低于CDC组.结论:与传统换药相比,VSD治疗皮肤软组织缺损创面总成本相对较高,临床效果优于CDC组,成本效果比相对较低,具有很好的卫生经济学前景.  相似文献   
9.
介绍陶瓷过滤机脱水系统三种排液装置的工作原理与结构,说明自排液装置改进设计要点和工作原理,经对比分析,改进后的自排液装置性能稳定,故障率低;并从四个方面阐述了陶瓷过滤机的发展方向。  相似文献   
10.
本文从宽泛的监管角度出发,构建包括法律监管、行政监管、自律监管和媒体监督在内的流域排污权交易监管体系,分析流域排污权交易的法律监管、行政监管、自律监管、媒体监管的特征、功能、局限性以及相互关系等问题,并探讨了流域排污权交易中监管者与被监管者之间的激励与约束机制问题。  相似文献   
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