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Marginal erosions in reservoirs of hydroelectric plants have caused economic and environmental problems concerning hydroelectric power generation, reduction of productive areas and devaluing land parc...
选用山东省当前推广面积较大的“20+40”大小行、“20+40”沟播、“20+40”垄作以及常规等行距模式,研究不同种植模式对冬小麦农田水资源利用效率和边际效益的影响。结果表明,等行距、大小行、沟播和垄作种植模式的最大产量分别为7778.6、7624.8、8684.6和8893.7kg/hm2,表明沟播和垄作都具有提高冬小麦产量的潜力,但在获得最大产量时,垄作的蒸散量比沟播提高了76.6mm。...
The analysis of single vehicle type dynamic marginal cost is extended to multiple vehicle type dynamic one based on time-dependent multiple vehicle type queue analysis at a bottleneck. First, a dynami...
Marginal Railway Infrastructure Costs in a Dynamic Context     railway  infrastructure operation  marginal costs       font style='font-size:12px;'> 2009/9/29
In this paper, dynamic aspects of railway infrastructure operation and maintenance costs in Sweden are explored. Econometric cost functions are estimated to check the robustness of previous marginal c...
This paper sets out alternative best practice approaches to marginal cost pricing of rail infrastructure adopted in a number of EU Member States. It draws on the findings of a report submitted to the ...
Pricing by ports and operators within ports is considered quite a complex and untransparant matter, and as such it is sometimes perceived as archaic. This often results in debates about subsidies, cap...
Frequency of services and vehicle size are important policy instruments of railway companies. Extending Mohring’s basic ‘square root model’ for frequencies, we arrive at more general formulations for ...
This article is divided into four parts: the first is concerned with the state subsidy and support policy in the year 2001. The second part of the contribution mentions the subsidy development in prod...
The article was written on the base of research results concerning economic development of several selected Czech agricultural companies. In dependence on the altitude, the sample was divided into two...

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