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 unidirectional circuit 单向回路(10)单向回路问题(2)
 单向回路
 Algorithm of ventilation network with unidirectional circuit 通风网络含有单向回路时的通路算法 短句来源 Discussion on Unidirectional Circuit in Ventilation Network and Its Controlling Technology 通风网络中单向回路及其控制技术的探讨 短句来源 Plotting method of ventilation network equilibrium graph with unidirectional circuit 含有单向回路的风网平衡图绘制方法 短句来源 The fluid network with unidirectional circuit was changed into that without unidirectional circuit by the topology relation's equivalent transform of the fluid network. 通过流体网络拓扑关系等效变换的方法，将含有单向回路的流体网络变换成不含有单向回路的流体网络，即可利用平衡图的绘制方法绘制含有单向回路的流体网络的平衡图。 短句来源 A Research of Unidirectional Circuit in Fluid Network 流体网络中单向回路问题的研究 短句来源 更多
 单向回路问题
 Unidirectional Circuit Problem in Multi-fan-station Ventilation System 多级机站通风方式中的单向回路问题 短句来源 A Research of Unidirectional Circuit in Fluid Network 流体网络中单向回路问题的研究 短句来源
 “unidirectional circuit”译为未确定词的双语例句
 Prove unequivalent for the unidirectional circuit of hybrid-π model of BJT 密勒定理不能对晶体管混合π模型作全等效单向化变换 短句来源

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 What is called unidirectional circuit is a circuit whose branches airflow directions are uniform. While we say there are unidirectional circuits in a network, i.e. there are circulating airflows in the network. Path is one of the important concepts of graph theory, and there are also extensive applications in ventilation network theory. Based on the algorithm of the amount and matrix of path of a ventilation network without unidirectional circuits, a further problem is put forward, i.e.... What is called unidirectional circuit is a circuit whose branches airflow directions are uniform. While we say there are unidirectional circuits in a network, i.e. there are circulating airflows in the network. Path is one of the important concepts of graph theory, and there are also extensive applications in ventilation network theory. Based on the algorithm of the amount and matrix of path of a ventilation network without unidirectional circuits, a further problem is put forward, i.e. the unfitness of the algorithm of the amount and matrix of path to the ventilation network without unidirectional circuits. An algorithm, which is based on the depth-first search method whose search strategy has been amended, to determine path matrix is discussed, and the algorithm suits ventilation network with unidirectional circuits, as well as ventilation network without unidirectional circuits, while the complexity is much less than that of algorithms based on matrix. 所谓单向回路就是风路风流方向相同的回路。网络中存在单向回路,也就是说存在着循环风。通路是图论中的一个重要概念,在通风网络中也有着广泛的用途。在介绍无单向回路的通风网络的通路数和通路矩阵计算方法的基础上,提出了含有单向回路的通风网络的通路的矩阵算法的不适用性问题。论述了通过修改搜索策略,利用深度优先搜索法确定通路矩阵的算法,该法既适用于有单向回路时的通风网络,也适用于无单向回路的情况,而且复杂性要比矩阵算法小得多。 The simulative calculation method and the results of multi-fan-station ventilation network with unidirectional circuits are described. The path determination in a ventilation network with unidirectional circuit is conducted by matrix algorithm with modified searching strategy of depth-first search method. The results show that the unidirectional circuits can be eliminated or the negative effects of unidirectional circuits can be decreased by optimization of the fan station position, increase... The simulative calculation method and the results of multi-fan-station ventilation network with unidirectional circuits are described. The path determination in a ventilation network with unidirectional circuit is conducted by matrix algorithm with modified searching strategy of depth-first search method. The results show that the unidirectional circuits can be eliminated or the negative effects of unidirectional circuits can be decreased by optimization of the fan station position, increase or decrease of fan station numbers, optimum regulation of network and diagonal structure analysis. 介绍含有单向回路的多级机站通风网络的通路模拟算法及其结果。通过修改搜索策略,用深度优先搜索法确定通 路的矩阵算法,模拟计算有单向回路的通风网络。结果表明,通过优化机站位置、增减机站、网络优化调节、角联结构分析等,可消 除单向网路或减少单向回路的负面影响。 Unidirectional circuits always exist in mines which adopt multistage fan station ventilation type and airflow reversion appears under the function of fire-heating air pressure. If unidirectional circuits exist in a network, the corresponding ventilation network equilibrium graph can not be plotted. In the paper, the equivalent transformation method is applied to the topology relationship of ventilation network. The method is to delete the branch with fan which result in unidirectional circuits,... Unidirectional circuits always exist in mines which adopt multistage fan station ventilation type and airflow reversion appears under the function of fire-heating air pressure. If unidirectional circuits exist in a network, the corresponding ventilation network equilibrium graph can not be plotted. In the paper, the equivalent transformation method is applied to the topology relationship of ventilation network. The method is to delete the branch with fan which result in unidirectional circuits, then construct new branch with fan whose end node is the sink of new network, and the end node of former branch with fan is the source of net network. The transformed network has the same branch number with former network, and this shows that the number of rectangle blocks of equilibrium graph is invariable. The topology relationship between transformed network and former network is uniform except the branches with fan which result in unidirectional branches. A ventilation network with unidirectional circuits will be switched to a ventilation network without unidirectional circuits, and thus the equilibrium graph of ventilation network with unidirectional circuits can be plotted. 在火风压作用下发生风流逆转和采用多级机站通风的矿井往往存在单向回路。通风网络中存在单向回路时,将无法绘制其所对应的平衡图。采用通风网络拓扑关系等效变换的方法,删除造成单向回路的风机分支,并构造新的风机分支,其末节点是新网络的汇点,原风机分支末节点是新网络的源点,变换后的网络与原网络在分支数上相同,说明平衡图矩形块的个数不变。除造成单向回路的风机分支外,变换后的网络与原网络拓扑关系相同。将含有单向回路的通风网络变换成无单向回路的通风网络,从而实现了含有单向回路的风网平衡图的绘制。 << 更多相关文摘
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