KPI考核在公交企业中的应用

株洲公交公司用KPI考核法取代了原来的目标考核，从根本上改变了公司传统的绩效考核模式，使得公司员工，特别是管理人员的工作效率得到较大的提升，形成了全员参与，全员监督，全员负责的新局面。     

城市轨道交通综合监控系统中事故反演功能的设计与实现

事故反演功能在城市轨道交通的综合监控系统中具有重要作用.以往的城市轨道交通综合监控系统往往不具备反演功能或者只能现场录制当前时刻开始的较短时间段的反演文件,因而缺乏灵活性和有效性.着重讨论了基于RT21-ISCS综合监控软件平台从实时历史数据库中获得事故反演数据源的方法,能够对城市轨道交通综合监控系统运行以来任意时段的场景进行反演分析.     

Characteristics of new-type energy absorber for vehicle collision

A new type energy absorber was introduced, which is composed of thousands of thin ring plates with different diameters. Because it can switch the impact to thousands of shearing actions among thin ring plates inside the absorber, the impact energy is decentralized and dissipated gradually, the impact acting time is extended and the peak of acceleration is reduced obviously. Numerical simulations by finite element method (FEM) coupled with smoothed particle hydrodynamics (SPH) method were preformed to predict the energy absorption characteristics. Energy absorption ability with different impact velocities was studied and the effects of thickness and material of ring plates were discussed. The sled crash test was carried out to validate the result of simulations. The new type absorber is effective for collision that impact velocity is lower than 40 km/h.     

小型水库除险加固之防渗方式探讨

结合南京市多座小型水库除险加固防渗处理的工程实践经验,总结出小型水库一般防渗方法,且针对不同渗漏原因,给出建议性防渗措施,有关经验可供相关专业人员参考。     

Establishment of a uremic apolipoprotein E knockout mouse model to explore the mechanism of uremic atherosclerosis

Objective To establish a uremic apoE-/- mouse model to observe serum biochemical parameters and features of aortic root atherosclerosis (AS) in the model. Methods A uremic model was induced surgically in apoE-/- mice: electrocautery of the right kidney at 8 weeks of age and nephrectomy (NX) of the left one 2 weeks later. Control mice were sham-operated. Two weeks after NX, renal functions were detected in the uremic and control mice to evaluate the efficiency of the model. After 10 weeks of NX, blood samples were taken to determine serum biochemical parameters, and aortic root was collected for frozen sections to investigate the lesion features of AS. Results Two weeks after NX, renal functions declined significantly in the uremic mice compared with the control ones, and remained stable 8 weeks later either in males or in females. Ten weeks after NX, serum levels of TCH, TG and LDL-C were dramatically higher in the uremic mice than in the controls, whereas no differences in serum HDL-C or glucose concentration were found between the two groups. Aortic root plaque relative area increased significantly in the uremic mice compared with the controls either in males or in females; more-over, the lesion area was larger in female mice than in male ones. Conclusion We established a uremic apoE-/- mouse model successfully, and this model is characterized by accelerated atherogenesis which is associated with an increase in serum lipid profile. This experimental model can be a useful tool to study the pathogenesis and therapeutic strategies of uremic AS.     

城市轨道交通电动列车司机值乘方案的优化

以上海轨道交通3号线为例,对电动列车司机值乘的包乘制、轮乘制按实际效果和使用成本进行了优缺点分析;并在此基础上对司机作息安排、人员配置、运作管理情况综合进行优化,以期达到网络运营后节约人力成本的作用.     

温福客运专线深厚层软土路基的预应力管桩加固处理

温福客运专线浙江段软土分布广泛。为有效控制工后沉降，对深厚层软土采用了“预应力混凝土管桩加褥垫层”的加固模式。该桩网结构在我国铁路软土路基加固工程中系首次采用，尚无成熟的设计方法及施工工艺。为此，以温福铁路DK26＋641～DK26＋950为试验段，对软硬突变地层终孔条件的确定，桩机的合理选择，工作垫层的优化，预应力管桩施工质量控制要点，褥垫层施工技术、质量控制与验收标准，以及沉降观测、管桩检测及成果验证进行了研究。检测结果表明，试验段的工程措施满足规范要求。     

山区公路路基排水系统灾害评价体系研究

对公路路基排水设施调查，提出山区高速公路排水设施水毁灾害形式，存在水毁频率最高的“三关键”水力学问题。确定公路排水设施水毁评价。四层次”评价指标体系，建立了将递进的“四层次”过程评价与层次系统模糊评价结合、水毁敏感点评价与排水系统评价结合的方法。提出了排水系统孕灾环境危险性、易损性评价具体的指标体系，水毁经济价值与工程防治措施效益计算方法，及小桥涵敏感点抗水毁具体评价指标体系。     

Load-leveling suspension system with a magnetorheological damper

In this paper, a load-leveling suspension system with a magnetorheological (MR) damper is investigated. In this suspension system, the MR damper is connected to a spring to form a load-leveling suspension system. The system effective stiffness and damping can be adjusted by controlling the MR damper. The characteristics of a load-leveling suspension system are studied first. When the linear damper is replaced with an MR damper, the averaging method is adopted to obtain the steady-state response of the nonlinear system. A comparison demonstrates that the results of the averaging method are in good agreement with those obtained by numerical simulations. The analytical results are then verified experimentally. The load-leveling suspension system studied here is able to adjust both suspension stiffness and damping and, hence, it may provide more effective vibration control in a wider frequency range, when the damper is controlled.     

关于构建大城市中央商务区综合交通体系的探讨

中央商务区是一个城市的核心区,同时也是城市交通高度集中的区域。如何构建一个高效的综合交通系统,有效地解决中央商务区的交通问题,一直是各大城市关注的重点问题。文中以广州珠江新城为例,探讨如何构建一个高效的综合交通体系,为解决CBD的交通问题提供参考和借鉴。