排序方式: 共有9条查询结果,搜索用时 156 毫秒
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通过研究发达国家内河航道建设资金来源及特点,在分析我国现行内河航道建设资金主要筹措模式的基础上,结合南京航道发展需求,提出了南京内河航道建设资金筹措建议。 相似文献
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隧道涌水事故会对隧道的安全产生巨大的危害,传统的事故树方法很难准确评价隧道涌水风险这一复杂性问题.以米林隧道为例,采用改进的FTA-AHP方法对隧道涌水事故进行风险评价.首先建立了以隧道涌水事故为顶上事件的事故树并求解最小径集及结构重要度,再基于事故树建立层次结构模型,利用结构重要度求解层次分析模型的判别因子,得出各基... 相似文献
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以公共交通为导向的城市用地开发模式(TOD)研究 总被引:11,自引:3,他引:11
公共交通导向的城市土地开发(TOD)是城市土地利用与交通规划协调发展的理想模式,是对土地利用与城市交通结合的分析方法最好的诠释.本文详细介绍了TOD策略的内涵、规划思路和实施原则,建立了TOD模式的交通需求预测模型,提出了适合我国城市发展的公共交通导向的城市用地开发模式. 相似文献
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为了更好地适应内河航道整治建设的发展需求,优化内河航道护岸结构设计,论述现代内河航道整治工程中新型护岸结构设计的新原则和新思路,着重介绍几种新型护岸结构设计的型式及其应用,其应用结果表明柔性护岸结构更加符合目前的生态航道建设理念。 相似文献
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目前利率市场化改革成为金融界的焦点,利率市场化的进程对我国中小商业银行产生了深远的影响。本文基于我国中小商业银行的发展情况的分析,点出利率市场化对我国中小商业银行的影响,并且提出以下相关解决建议。 相似文献
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In recent years, computer assisted surgery (CAS) systems become more and more common in clinical practices, but few specific design criteria have been proposed for human-computer interface (HCI) in CAS systems. This paper tried to give universal criteria of HCI design for CAS systems through introduction of demonstration application, which is total knee replacement (TKR) with a nonimage-based navigation system. A typical computer assisted process can be divided into four phases: the preoperative planning phase, the intraoperative registration phase, the intraoperative navigation phase and finally the postoperative assessment phase. The interface design for four steps is described respectively in the demonstration application. These criteria this paper summarized can be useful to software developers to achieve reliable and e?ective interfaces for new CAS systems more easily. 相似文献
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A novel segmentation method for medical image with intensity inhomogeneity is introduced. In the proposed active contour model,
both region and gradient information are taken into consideration. The former, i.e., region-based fitting energy, draws upon
the region information and guarantees the accurate extraction of inhomogeneous image’s local information. The latter, i.e.,
an edge indicator, weights the length penalizing term to consider the gradient constrain. Moreover, signed distance penalizing
term is also added to ensure accurate computation and avoid the time-consuming re-initialization of evolving level set function.
Experiments for synthetic and real images demonstrate the feasibility and superiority of the proposed model. 相似文献
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