车间调度下流水线制造系统的仿真研究

在车间调度的基础上，采用事件调度法仿真策略，对流水线制造系统的仿真进行研究。     

基于踝关节轨迹的行走机构设计仿真研究

这里提出了一种十连杆闭链步行机器人行走机构。建立了机构的数学模型，完成了机构优化设计和机构运动分析，利用计算机仿真技术模拟机构运动，设计分析过程和仿真过程同步显示。结果表明该机构是一种较为理想的步行机器人行走机构。     

热塑性弹性体改性B炸药的性能研究

添加2%热塑性弹性体401和501对B炸药改性,得到改性后炸药MB-1和MB-2,测试了二者的力学性能和落锤撞击感度,分别用经验法和VLWR程序计算了二者的爆轰性能。结果表明,MB-1和MB-2的弹性和韧性均好于B炸药;在低速(100-1500s-1)冲击下,MB-2的韧性比MB-1好。大药片落锤撞击感度试验中,MB-1和MB-2的爆炸反应阈值高度分别为3.5-4m和6-6.5m,MB-1的撞击感度比MB-2高。与B炸药相比,MB-1和MB-2的爆速分别降低了0.104mm·μs-1和0.099mm·μs-1,爆压分别降低了1.3GPa和1.2GPa。     

Irradiation embrittlement monitoring of WWER-440/213 TYPE RPVs

In the paper the main goals and progress of the surveillance specimen programme for the RPVs WWER-440/213 in Jaslovské Bohunice V-2 and Mochovce NPPs are presented. At Jaslovské Bohunice V-2, the standard surveillance specimen programme (SSSP) was finished and so-called ‘Extended Surveillance Specimen Programme’ (ESSP) was prepared on the base of its critical analysis. For first two units of the Mochovce NPP completely new programmes of irradiation embrittlement monitoring called ‘Modern Surveillance Specimen Programme’ is prepared. It is based on the experience with SSSP and ESSP as well as the recommendations of IAEA experts. This programme will serve for Mochovce NPP during all planned service life. The experience of ESSP application on the 3rd and 4th units in Jaslovské Bohunice V-2 NPP are presented in the paper too.     

Classification and Uncertainty Visualization of Dendritic Spines from Optical Microscopy Imaging

Neuronal dendrites and their spines affect the connectivity of neural networks, and play a significant role in many neurological conditions. Neuronal function is observed to be closely correlated with the appearance, disappearance and morphology of the spines. Automatic 3‐D reconstruction of neurons from light microscopy images, followed by the identification, classification and visualization of dendritic spines is therefore essential for studying neuronal physiology and biophysical properties. In this paper, we present a method to reconstruct dendrites using a surface representation of the dendrite. The 1‐D skeleton of the dendritic surface is then extracted by a medial geodesic function that is robust and topologically correct. This is followed by a Bayesian identification and classification of the spines. The dendrite and spines are visualized in a manner that displays the spines' types and the inherent uncertainty in identification and classification. We also describe a user study conducted to validate the accuracy of the classification and the efficacy of the visualization.     

一种实用凸轮连杆机构运动分析的方法

介绍了对凸轮连杆机构进行运动分析的一种实用、简便的方法。该方法以复数矢量法为依托 ,以 PC机为工具 ,大大简化了平面运动分析的过程 ,避免了解析法中大量公式的推导和方程组求解的过程 ,从而降低了设计和研究人员的工作强度。并以印刷机上的递纸机构 (凸轮连杆机构 )为例 ,利用复数矢量法对凸轮连杆机构的运动分析进行了详细的阐述     

一种有效的片上系统测试数据压缩算法

测试数据的规模和容量直接影响了片上系统的测试成本,故提出了一种测试数据编码的压缩算法——MinComp．该方法采用不等间距的编码方式,根据测试数据中游程长度的统计分布情况来调整各组数据的大小,从而提高测试数据的压缩率,降低了测试成本．为了使编码算法对应的解码电路的硬件开销最小化,该算法还引入了前后缀标识位的概念,这样可减小解码电路的规模和复杂度．对ISCAS89 benchmark电路的实验结果表明,采用MinComp编码方式的压缩效率要比Golomb等编码方法好,而且实现方式简单．     

射弹冲击带盖板Comp B装药起爆过程数值模拟

分析并验证了圆柱形平头铜射弹冲击起爆带盖板Comp B装药,利用LS-DYNA模拟了圆柱形平头和圆头钨射弹冲击带不同厚度钢盖板的Comp B装药起爆过程,定量地分析了起爆临界速度随盖板厚度的变化规律,讨论了发生延迟起爆(XDT)现象的原因和机理。结果表明,直接冲击起爆计算结果能够较好地符合Jacobs判据,圆头与平头钨射弹冲击带盖板Comp B装药临界起爆速度满足关系式Vround≈1.15Vflat,发生XDT现象是因为炸药被破坏及反射冲击共同作用所致,且XDT现象产生位置均在邻近底板的炸药界面处。     

反应度对B炸药热分解动力学参数的影响

通过差热扫描热量计（DSC-7）热分析系统对在不同温度下进行热处理后的B炸药的热分解进行了研究，结果表明，反应度对其分解表观活化能产生影响随反应度的增加，其活化能逐渐减小。     

ESA Comp复合材料结构设计的专用软件

复合材料层合板的设计过程存在着同传统金属结构设计不同的阶段.例如,复合材料的结构设计有许多种可能的材料组合,而且材料的各向异性力学行为在设计阶段是能通过选择特定的纤维方向和叠层次序确定的.虽然有限元程序能够用来对复合材料进行分析,但不能涵盖所有涉及复合材料具体设计和分析方面.因此,还需要专业化的复合材料设计工具来对复合材料进行设计.一些比较先进的设计工具,如本文中涉及的ESAComp软件,同有限元软件包结合起来,组成了复合材料结构设计过程的整个部分.