Optimal scheduling of the flexray static segment based on two-dimensional bin-packing algorithm

FlexRay is a reliable and hard real-time in-vehicle communication protocol that is strongly promoted by car manufacturers as the de facto standard in the automotive domain. The protocol offers both a time-triggered and an eventtriggered architecture. This paper focuses on the optimal scheduling of the time-triggered component of FlexRay known as the static (ST) segment using a two-dimensional bin-packing technique. To maximize the bandwidth utilization in the ST segment, a fast heuristic as well as an efficient integer linear programming approach are proposed. Our methods directly schedule signals into slots including frame packing, according to signal-based data scheduling and the slot/ cycle multiplexing mechanisms presented by the latest version of the FlexRay protocol. The benefits of our proposed methods are demonstrated by extensive experiments on synthetic and an automotive X-by-wire system case study. An additional test case is examined to emphasize the superior performance of the proposed approach relative to that of existing optimal scheduling approaches.     

Damage Accumulation in Rail Steel under Rolling with Slippage and Its Analysis

Experimental research results of surface damage accumulation in rail steel under rolling with slippage are presented. Hertz contact for two rollers made of rail and wheel steels was realized in the test. The influence of loading regime upon wear of rail is considered. The estimation of characteristics of surface fracture resistance for rail steel is made. The method to predict the life of rail steel under given conditions of regular loading is proposed.     

对《玻璃纤维增强塑料渔船建造规范（1995）》的意见

我国最早的<玻璃纤维渔船建造规范>出自于1989年,为试行本,后经过一系列修改而成1995年版<玻璃纤维增强塑料渔船建造规范>(以下简称<95玻璃钢渔规>)使用至今.随着建造玻璃钢渔船数量的增加,不断地探索与经验积累,在<95玻璃钢渔规>的应用中发现仍有许多值得研究与探讨的地方.     

我国国际工程承包业的地位和发展

分析了国际工程承包市场的现状与发展趋势，以及我国在国际工程承包市场中的地位，指出了我国国际工程承包业需要解决的问题，并提出了促进其发展的建议。     

随机变分方程解的存在,唯一性问题

研究了随机有限元方法的理论基础－随机变分方程解的合理性问题，证明了一般形式的随机变分方程解的存在与唯一性定性，明确了在随机扰动算子不足以破坏均值微分算子的强制性条件－不会导致方程类型变异的前提下，Ｆｒｅｄｈｏｌｍ择一定理的第二个结果成立，此时在概率１的意义上变分解存在而且唯一。     

CRTSⅢ型路基纵连轨道板制造技术及创新

成灌铁路采用了全新的CRTSⅢ型无砟轨道结构,在路基地段敷设了CRTSⅢ型路基纵连轨道板。介绍了CRTSⅢ型路基纵连轨道板的结构特点、二雏可调钢模技术、自动调整测量系统、生产工艺及检测方法,并总结了该种轨道板的主要创新点。     

高速公路绿化防护措施

结合我国公路建设的现状，遵循科学管养的原则，在有限的建设资金下，提出了改变观念、更新设计思路，引进新技术的方法来解决我国高速公路绿化防护中存在的问题。结合实际工程得出，绿化防护新技术能满足使用功能，减少环境污染，丰富道路景观。     

列车运行自动控制(ATO)算法的研究

通过分析列车自动控制算法所面临的问题，提出了具有自适应、智能化的列车自动驾驶算法及推理机结构。     

永安洪田箭丰滑坡的治理和监测

以永安洪田箭丰滑坡的二期治理工程为例，叙述了该滑坡的，发展和治理方案，总结了主导思想和设计思路的经验和教训、提供了监测方法和作用。