轨道交通综合监控系统调度管理应用

轨道交通综合监控系统通过统一的平台将各子系统有机地结合,实现数据的共享和统一管理.通过对不同集成方式的分析,结合某城市轨道交通实例,简谈综合监控系统调度管理应用.     

地铁双层车辆段信号设备布置和工程配合研究

针对地铁双层车辆段的土建工程特点,通过对出段列车运行能力的分析,提出适应双层车辆段特点和运营需求的信号设备平面布置以及信号工程实施的配合措施,可为今后双层车辆段的信号工程设计提供参考和借鉴。     

燃料电池电动车车载甲醇重整器

对目前世界几大汽车公司研制开发的燃料电池电动汽车车载甲醇重整器加以介绍，着重讨论了重整器的设计与重整催化剂的布置。指出，甲醇重整器的效果良好，但重整器出口富氢重整气中CO的含量仍然很高，而较高浓度的CO会使燃料电池电极中毒。因此，从重整器中产生出来的重整气在进入燃料电池以前要进行净化。     

潭邵高速公路顺层滑坡整治

通过对某顺层古滑坡的现场调查，分析判断出古滑坡的滑动范围、滑动面，并对滑动面抗剪强度参数进行了反分析计算。据此对古滑坡体进行了初步整治设计，实际整治时未进行防水措施，抗滑指标进一步下降，并对此时软化滑动面抗剪强度进行了计算分析。结果对K89-95段的调查分析，对此区段的切方边坡违背工程地质选线原则导致的后果进行了反思。     

浅析钢筋混凝土双曲拱桥的拆除

本文通过对原淮阴市红卫桥拆除过程进行分析总结 ,初步探索了钢筋混凝土双曲拱桥的拆除工艺和方法     

Storage space allocation in container terminals

Container terminals are essential intermodal interfaces in the global transportation network. Efficient container handling at terminals is important in reducing transportation costs and keeping shipping schedules. In this paper, we study the storage space allocation problem in the storage yards of terminals. This problem is related to all the resources in terminal operations, including quay cranes, yard cranes, storage space, and internal trucks. We solve the problem using a rolling-horizon approach. For each planning horizon, the problem is decomposed into two levels and each level is formulated as a mathematical programming model. At the first level, the total number of containers to be placed in each storage block in each time period of the planning horizon is set to balance two types of workloads among blocks. The second level determines the number of containers associated with each vessel that constitutes the total number of containers in each block in each period, in order to minimize the total distance to transport the containers between their storage blocks and the vessel berthing locations. Numerical runs show that with short computation time the method significantly reduces the workload imbalance in the yard, avoiding possible bottlenecks in terminal operations.     

绿色公路技术LCA评价体系及效益分析

针对各类绿色公路技术难以横向比较的问题,文章从技术可行性、经济效益、节能减排效益等方面,提出建立绿色公路技术LCA评价体系,并以G312苏州西段工程为例进行综合效益分析,其综合效益最为显著,具备规模化、资源化、投资适宜的绿色公路技术;技术瓶颈问题的突破和创新,是推进绿色公路发展的根本动力;将绿色理念融入公路建设的全生命周期的前提,是因地制宜的前期规划布局研究,也是合理选择适宜绿色公路技术的基础。     

Automatic outer surface extraction of femoral head in CT images

Computer-aided hip surgery planning and implant design applications require accurate segmentation of femoral head and proximal acetabulum. An accurate outer surface extraction of femoral head using marching cubes algorithm remains challenging due to deformed shapes and extremely narrow inter-bone regions. In this paper, we present an automatic and fast approach for segmentation of femoral head and proximal acetabulum which leads to accurate and compact representation of femoral head using marching cubes algorithm. At first, valley-emphasized images are constructed from original images so that valleys stand out in high relief. Otsu’s multiple thresholding technique is applied to seperate the images into bone and non-bone classes. Region growing method and threedimensional (3D) morphological operations are performed to fill holes in the bone. In the reclassification process, the bone regions are further segmented, and the boundaries of the bone regions are further refined based on Bayes decision rule. Finally, marching cubes algorithm is applied to reconstruct a 3D model and extract the outer surface of femoral head and proximal acetabulum. Experimental results show that this method is an accurate segmentation technique for femoral head and proximal acetabulum and it can be applied as a tool in medical practice.     

基于物元分析法的公路桥梁损伤等级评定研究

在构建桥梁损伤等级评定指标体系的基础上，采用 AHP确定了各指标的权重，运用物元分析的方法建立了桥梁损伤等级评定的数学模型，并利用模型评定结果，得到了某桥梁的损伤等级。     

浅谈移动车载视频监控系统在高速公路管理中的应用

阐述了移动车载视频监控系统在高速公路管理中的应用.