Steady state analysis of towed marine cables

Efficient numerical schemes were presented for the steady state solutions of towed marine cables. For most of towed systems, the steady state problem can be resolved into two-point boundary-value problem, or initial value problem in some special cases where the initial values are available directly. A new technique was proposed and attempted to solve the two-point boundary-value problem rather than the conventional shooting method due to its algorithm complexity and low efficiency. First, the boundary conditions are transformed into a set of nonlinear governing equations about the initial values, then bisection method is employed to solve these nonlinear equations with the aid of 4th order Runge-Kutta method. In common sense, non-uniform (sheared) current is assumed, which varies in magnitude and direction with depth. The schemes are validated through the DE Zoysa's example, then several numerical examples are also presented to illustrate the numerical schemes.     

Automatic software install/update for embedded Linux

Linux has a special feature of automount in the Linux kernel. Filesystem can be mounted and unmounted automatically. Its performance is similar to MS Windows. It works well under demands of more saving resources and automatization, like memory of system. An approach to install/update software automatically on embedded platform was proposed. This approach derives from above feature based on embedded environment with Linux OS. Configurations of files related to this feature were introduced. An example in practice was given to realize this approach from universal serial bus （USB） memory disk when USB disk is available.     

谈钦州港原油过驳船舶生活污水处理

文中简述了船舶生活污水处理的有关要求，分析了钦州港原油过驳期间生活污水处理的现状，提出了改进措施，以期在防止船舶生活污水污染方面，形成具体的适合本辖区水域STS过驳作业管理规定。     

基于拍卖合谋理论的建设项目陪标内在机理及其防范

基于拍卖中的合谋理论,分析了陪标的内在机理,包括陪标协议的形成和履行机制、陪标团体及其各个成员的目标及其面临的激励兼容与参与约束条件;结合陪标的内在机理,从抑制串标组织信息交流及其抬高标价的能力、抑制投标人参与串标的意愿及对串标组织进行内部瓦解等方面,分析了当前相关措施的治理效果,指出存在的不足;提出了有针对性的防范与改进措施。     

更换柴油机过轮总成时的找齿方法

根据更换16V240ZJB型柴油机过轮总成的工作经验，结合过轮的结构特点，总结出了一种简便有效的在普通机床上找齿的方法。     

浅谈虚拟现实技术在轨道交通工程投标中的应用

主要研究虚拟现实技术在轨道交通工程投标领域中的应用。针对现代城市轨道交通建设，通过用GOOGLE影像地图打造轨道交通首期工程，用三维数字模型构造地铁线的虚拟动画实例，论述了运用虚拟现实技术，实现轨道交通在城市的仿真，将轨道交通与城市的过去、现在与将来的情况，更真实、鲜明、生动地展示在设计者、决策者、投资者和市民面前，便于对轨道交通规划的设计、投标、评审、可行性研究，有利于增强人们对轨道交通建设的理解和支持，对保证城市轨道交通建设的顺利进行将产生积极的影响。     

不中断交通情况下的高速公路T梁拼接质量控制

从桥梁拼接方式的选择、T梁拼接方案比选、不中断交通的纵缝施工工艺等方面介绍T梁拼接质量控制措施。     

两种GTD模型参数估计算法的研究

基于电磁散射的几何绕射(GTD)模型参数估计研究,将采用两种方法:多重信号分类(MUSIC)和基于信号子空间特征向量的广义特征值(GEESE)算法.其中GEESE利用特征子空间分解方法中信号子空间与噪声子空间的正交特性分离出信号子空间.计算机仿真试验,分别采用这两种算法估计出目标散射中心的位置和类型参数.