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骨科住院患者跌倒的情况时有发生,可导致机体创伤、功能状态衰退、心理创伤,甚至危及生命,因此预防骨科住院患者跌倒已成为评价骨科护理质量的重要指标。 相似文献
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以某高速公路桥梁桥面铺装出现的病害情况为依据,论述桥面铺装病害的检测方法并分析病害产生原因,提出维修加固设计方案及施工工艺和方法。 相似文献
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Measurement of two phase flow in porous medium for sequestration was carried out using high-resolution magnetic resonance imaging (MRI) technique. The porous medium was a packed bed of glass beads. Spin echo multi sequence was used to measure the distribution of CO2 and water in the porous medium. The intensity images show that the fluid distribution is non-uniform due to its viscosity and pore structure of porous medium. The velocity distribution of fluids is calculated from the saturation of water and porosity of porous medium. The experimental results show that fluid velocities vary with time and position. The capillary dispersion rate donated the effects of capillary, which was largest at water saturations of 0.45. The displacement process is different between in BZ-02 and BZ-2. The final water residual saturation depends on permeability and porosity. 相似文献
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最近二三十年,世界各国的公路都有了很大的发展,尤以沥青路面为多。在大规模的公路建设以后,随之而来的将是任务繁重的公路养护和管理。路面检测是养护工作的一项重要内容,也是路面管理系统中数据采集的重要组成部分。文章将根据路面检测指标分类论述沥青路面检测技术,并对路面集成检测技术进行介绍。 相似文献
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