加强养成教育，塑造大学生优良的品格——学生党校对大学生进行养成教育方法探索

培养具有良好职业道德素养的学生,是行业的需求,社会的需要,更是高校义不容辞的责任。在日常生活、工作和学习中,通过训练、严格管理等种种教育手段,全面提高人的“知、情、意、行”等素质,最终养成自觉遵守社会道德和行为规范等良好道德品质和行为习惯的一种教育,是高校对大学生的养成教育做出有益的探索。     

Computational method for prestress developing of tensile cable-net structures

The prestress developing of tensile cable-net structures is a state transforming process from the initial unstressed state to the final prestressed state, and it is rather complicated because the elastic deformation is normally coupled with the kinematic mechanism movement. Firstly, the basic equations of prestress developing by moving boundary joint are derived from the total potential energy equation. Secondly, the presumed initial tension is proposed to impose into the elements and avoid the singularity of global stiffness matrix. And the self-stress mode which is calculated from the equilibrium matrix with singular value decomposition is employed as basically presumed initial tension. By applying boundary movement increment, an iterative computation is developed to calculate the updating geometric configuration and tension evolution. Finally, the MATLAB program is coded from the presented method, and numerical examples indicate that this computational method is effective and has theoretical significance and valuable guide to design and construction of tensile cable-net structure.     

预制箱梁裂纹发育机理及抑制技术

详细分析了混凝土箱梁常见裂纹形式、产生的原因以及裂纹的特征,并从原材料选择、混凝土配合比的设计及施工工艺等方面提出了抑制裂纹产生的措施,收到了良好的效果。能为类似工程提供借鉴。     

重庆市万州区公路洪灾孕灾环境分区

针对重庆市万州区公路洪灾,选择公路沿线地质灾害发育、暴雨强度、洪水频次、地貌条件、岩性条件、年均降雨量、植被覆盖度与地质构造等8个孕灾环境指标,通过层次分析法确定其权重,提出了孕灾环境指数评价模型.在GIS技术支持下,以网格为单位提取出各网格的孕灾环境指数,据此结合万州区乡镇级行政区划将万州区公路洪灾孕灾环境划分为4个...     

适应于低密度开发区域的公交运营模式探索与研究——以深圳市小型公交支线为例

分析城市低密度开发区域的公交出行需求特征,提出与该类型区域客流出行特征相适应的公交运营模式,从而达到既满足客流出行需求又保证公交运营服务可持续的目的。最后,结合深圳市小型公交支线试点工作情况进行了案例分析。     

油气管道内腐蚀检测技术的现状与发展趋势

综述了油气管道内腐蚀检测技术的发展现状,介绍了目前较为成熟、应用较为普遍的漏磁检测、超声波检测、涡流检测、射线检测、基于光学原理的无损检测5种内检测技术的原理,并分析了各种技术的优缺点.结合近年来在油气管道内腐蚀检测方面的一些经验,提出了目前管道内腐蚀检测技术存在的问题,并指出了管道内腐蚀检测技术的发展趋势.     

Road and off-road vehicle system dynamics. Understanding the future from the past

A detailed analysis of scientific research directions and methods in ground vehicle dynamics and vehicle system dynamics during the past century is presented in this article. What started as peculiarities of vehicle motion, dynamics of vehicles went through extensive research and engineering work and was established as an applied science – vehicle dynamics. Steady motion and transient manoeuvres, multi-flexible-body dynamics, nonlinear and stochastic dynamics, terramechanics, vehicle operational properties and their multi-criterion optimisation, computer modelling and simulation, analysis and optimal synthesis, various controls, inverse vehicle dynamics, open architecture-type, and multi-domain vehicle systems – these are the milestones of developments over the past century. This article considers the subject-matter and the substance of vehicle dynamics in general, and new research directions of modern vehicle dynamics in particular. It is shown that modern vehicle dynamics is acquiring principally new features including agile dynamics of multi-physics mechatronic systems (including cyber-type systems), coupled and interactive vehicle system dynamics.     

国际油运市场现状及发展趋势

随着世界经济的稳步发展,对石油的需求也在不断增加,而大部分的石油都是通过海上运输的,因此,国际油运市场备受关注。介绍了国际油运市场的现状,提出了影响国际油运市场的主要因素,其中包括国际经济形势、国际石油消费需求和运力,并阐述了三者与国际油运市场走势的关系,在此基础之上,展望了未来的国际油运市场发展趋势,并着重对未来市场的运力发展趋势进行了分析。     

世界石油市场和中国海运量现状及发展预测

概述了国际原油生产消耗和贸易、进出口主要国家与地区及海运量航线基本情况,进行了国际成品油海运市场分析和中国原油进口量与国内成品油海运量预测,以期在总体上为中国石油多渠道稳定供应安全和港航油运企业发展决策提供借鉴。     

“蜜蜂式”开发边际油田方案及技术

中海油对边际油田开发一直非常重视，尤其近几年在依托开发方面取得了很大进展；目前高油价推动了无依托边际油田的开发，中海油有关单位都积极参与独立开发边际油田的方案和技术研究，推动边际油田的开发。针对上述有关方面的研究进行介绍。