3D Nonlinear Numerical Simulation of Intact and Debonded Reinforced Concrete Beams

To study the behaviour of reinforced concrete (RC) structures with sections of concrete removed and the reinforcement exposed, 3D nonlinear numerical analysis was performed upon both intact and debonded RC beams by using finite element techniques. The deformational characteristics and the ultimate loads were obtained through numerical models, as well as crack and stress distributions. The failure modes can also be deduced from computational results. Compared with intact beams, the normal assumptions of plane section behaviour is not hold true and the patterns of stress and strain are different in debonded RC beams. The numerical results show good consistency with experimental data. This kind of numerical simulation is a supplement to existing codes.     

符合新兴市场废气排放法规要求的柴油机开发

为了降低因交通工具引发的二氧化碳排放,进行了广泛的研究,为此,全球柴油车的销量得到大幅提高。同时,由于日益严格的排放限值要求,在新兴市场中也开始采用排气后处理系统,诸如开放式或封闭式柴油颗粒捕集器。介绍了FEV公司根据这些国家的边界条件提出的排放控制理念和排气后处理技术及其面临的挑战,以及对此所采取的一些合适的解决方案。     

基于MAS的海军装备协同作战仿真模型

海军协同作战过程很复杂,一般方法难以描述海军装备之间的协同作战形式.本文探讨了多智能体(MA)在描述作战装备实体的协同与自组织中的作用,并结合海军装备协同作战的特点,建立了基于多智能体的海军装备协同作战仿真模型,为研究现代海战提供了参考.     

金属箔式电阻应变计在静强度测试中的应用

介绍了自制金属箔式应变计荷重传感器的原理、结构及布片方案,并对其所组成的测试系统进行了标定.通过对测量数据的处理和误差分析,得出了比较准确的测量结果.该结果有利于指导实际构件的静强度测试.     

Computer Modeling: an Important Tool in Materials Processing

IntroductionComPlltermodelinghasenjoyedgrowingaccePtanceinindustryandacademiaasamethodofchoiceforcharaCterzingmaterialsProcessingoperationswiththedriofattainingtargotend-designsinteffosofmetricssuchasPropenies,geometw,integrityandqualityassessment.Melting,cashng,machining,joiningandheattreatmcntaresomeexamPlesofcommonmatorialsProcesses.MaterialsProcessesbytheirnaturehaveseveralinherntpthelsthatneedtobeoveromeinorderthatthedesiredProductswillmeetthetargetspecilications.SuchpitfalsrePresentb…     

碳纤维布增强钢筋混凝土梁抗弯疲劳性能试验研究

通过改变粘贴碳纤维布的层数、粘贴方式,进行了4根碳纤维布增强钢筋混凝土梁的疲劳试验和2根普通钢筋混凝土梁的疲劳对比试验研究,试验结果表明,碳纤维加固可以较大的提高混凝土梁的疲劳性能,延长混凝土梁的使用寿命;粘贴碳纤维布的方式以及粘贴层数对钢筋混凝土梁的抗疲劳性能有很大的影响.     

Safety Protection Method of Rehabilitation Robot Based on fNIRS and RGB-D Information Fusion

In order to improve the safety protection performance of the rehabilitation robot,an active safety protection method is proposed in the rehabilitation scene.The oxyhemoglobin concentration information and RGB-D information are combined in this method,which aims to realize the comprehensive monitoring of the invasion target,the patient's brain function movement state,and the joint angle in the rehabilitation scene.The main focus is to study the fusion method of the oxyhemoglobin concentration information and RGB-D information in the rehabilitation scene.Frequency analysis of brain functional connectivity coefficient was used to distinguish the basic motion states.The human skeleton recognition algorithm was used to realize the angle monitoring of the upper limb joint combined with the depth information.Compared with speed and separation monitoring,the protection method of multi-information fusion is safer and more comprehensive for stroke patients.By building the active safety protection platform of the upper limb rehabilitation robot,the performance of the system in different safety states is tested,and the safety protection performance of the method in the upper limb rehabilitation scene is verified.     

夏日英伦风

从复古皮鞋、单肩背包、大檐帽这些配饰的选择上都能看出夏日英伦的文艺情节来自英国的新IT Girl,歌手嘉德·威廉斯（Jade Williams）的穿着就有种学院派英伦范儿,这种英伦风格中还混合着淡淡的法式优雅和俏皮。宽松的碎花裙套装不仅修饰身形,也非常适合出游,白色连衣裙、轻薄的夹克都与今年大热的少女风契合。     

污染问题与公共交通运营

国际公共交通联合会相信,交通污染问题不仅 是交通运营部门及其乘客所面临的问题,而且是社 会公众所关注的问题.公交公司应当具有把全体 市民都看成是潜在顾客的意识.减少交通污染是 提高公司的社会形象,从长远利益出发赢得市场份 额的明智之举.     

2006—2011年德国铁路市场分析——市场参与者、容量及预测

介绍了德国运输企业和工业企业的现状、经营活动、决策机制和现有的市场数据,并预测了至2011年的德国市场发展情况。