摘要：针对一类具有平行分布补偿的线性和非线性系统,采用滑模控制技术,实现了一种复合非线性反馈控制方法。所提出的复合非线性反馈控制方法由两部分组成。第一部分给出了闭环系统的稳定性和快速收敛响应,而第二部分改进了瞬态响应。本研究设计了符合模糊逻辑的遗传算法来计算常系数和优化控制效果。通过伺服位置控制系统和倒立摆系统的仿真,验证了所提设计的有效性。

摘要：本文使用状态依赖的Riccati方程(SDRE)方法为主动经股假体系统设计联合控制器/观察器框架。利用积分状态控制技术来设计机器人/假体系统的跟踪控制器。该框架保证了系统灵活设计,通过该设计,可以实现多种设计参数优化,例如鲁棒性、状态估计和控制最佳性,而无需模型线性化。仿真研究证明了该方法的性能,较鲁棒的自适应阻抗控制器和基于扩展卡尔曼滤波器的状态估计方法有所改进。数值结果证实了本方法在控制最优性和状态估计方面优于上述方法。

摘要：The high pressure waves generated due to muzzle blast flow of tank gun during firing is a critical issue to examine. The impulsive noise from the gun has various negative effects such as damage of human bodies, damage of structures, creating an environmental, social problem and also military problems such as exposure of location of troops. This high pressure impulsive sound, generated during the blast flow, was studied and attenuated. An axisymmetric computational domain was constructed by employing Spalart Allmaras turbulence model. Approximately 90% of pressure and 20 dB of sound level are reduced due to the use of the three baffle silencer at the muzzle end of the gun barrel, in comparison with the tank gun without silencer. Also, the sound pressure level at different points in the ambient region shows the same attenuation in results. This study will be helpful to understand the blast wave characteristics and also to get a good idea to design silencer for large caliber weapon system.

摘要：During the modern city construction,the conservation of the historic buildings is especial important,for the future development is based on the historic *** element,which is the common material in the historic buildings,always sufferd by the varies natural or man-made factors,and finally lead to huge threaten to the entire *** conservation methods often changing according to the different circumstances and degree of *** paper has introduced two approaches,repair and replacement,compared the advantages and disadvantages of each,and then summary the application of two methods in the light of conservation principle.

摘要：An overview of the progress in the deployment of synergy effects in engineering design is presented. On the example of the development of fluidic sensors, the difficulties to discover qualitative synergy through experimental search of are evaluated. It is arrived at the truth that using the tools of computational intelligence may be the faster way to the solution. Further the paper is focussed on the latest research efforts in quantitative synergy area where engineering design quality is concerned. The success in development of adaptive tools for synergy-based design of interdisciplinary systems is analyzed. It is shown that using the synergy-based design approach in quality management context makes it possible to create an effective synergy-supported quality assurance environment.

摘要：纤维缠绕环形容器可充分利用空间,节省结构质量和消除系统质心漂移,目前在很多工业领域中发挥着日益重要的作用。本文基于复合材料层合理论和测地线缠绕原理,提出了纤维缠绕环形压力容器的线型优化设计方法。应用微分几何,导出了圆环面上测地缠绕轨迹和纤维不架空判据。以初始缠绕角和缠绕层厚度为变量,对结构重量进行最小化设计,得到了对应于不同管径比的优化缠绕线型。对优化线型进行了计算机缠绕仿真,并给出了缠绕铺层的各向正轴应力分布。结果表明,优化设计的缠绕线型模式精确可靠,满足纤维缠绕的基本要求。纤维缠绕角度大小更趋于合理,从而能充分发挥缠绕结构的力学性能,减经系统重量,使优化得到的环形容器结构性能比传统测地线缠绕环形容器有很大提高。本文的设计计算方法可直接用于复合材料环形气瓶的初步设计。

摘要：设计了一个采用内点算法的灰狼优化程序以纠错天线阵列。若单个传感器故障,整个阵列辐射功率图在旁瓣电平(sidelobe level,SLL)和深零度电平(nulldepthlevel,NDL)方向受干扰,零点被破坏并发生偏离。可通过设计新的适应函数解决这些问题,并减小预期辐射功率图与零限值之间的偏差。该混合算法用于控制天线阵列的辐射功率图。仿真实验使用了由21个传感器组成的天线阵列。仿真结果表明,与现有的SLL和NDL方法相比,所提方法具有良好性能。

摘要：Marching-Graph是一种将图形隐喻技术和空间隐喻技术集成为一体的新的可视化方法.它为用户提供了高度可交互性地图,使用户可访问那些具有地理属性的信息的逻辑结构.它通过有效的人图交互和跨空间浏览为用户提供了一种可视分析和挖掘未知信息的机制,而不是将已知的信息呈现在地图上.然而,传统的力导向布局算法在达到力量均衡配置方面非常慢.为使一个图形布局收敛,它们通常需花费几十秒的时间.因此。当用户快速行进于地理区间时,那些力导向布局算法就不能满足快速绘制一系列图形的要求.提出了一种快速收敛布局方法,当用户在Marching-Graph中通过力导向布局逐步探究一系列图形时,它可以加速交互时间.通过结合辐射树绘图技术和力导向图形绘制方法来取得能量最小化的快速收敛.

摘要：The National University Corporation Tsukuba University of technology（NTUT） is the only institute of higher education for the hearing and the visually impaired in Japan. In our university, hearing or visually impaired students are studying to be technicians after they graduate, toward social independence. From previous experience of higher education for students with disabilities, effects are increased when modeling is used by the teachers involved in professional education. In the Mechanical Engineering Course, we are using modeling, to match the drawing and shape for beginning students. It includes support for enhancing one＇s view, and how to draw out the ability of mechanical engineering students for the basics. For students to study Mechanical Design and Drawing, Modeling of Gear Pump, Jack and Globe Valve are easily shown through drawings and the operation of each mechanism through sample drawings in the textbook. It is possible to make an opportunity to think about the machine mechanism. It will be shown by students＇ works. The assembling of the model triggers the need for form accuracy by making a function, and improves the quality of learning. It is possible that a three-dimensional molding machine can be produced through experiential learning by the model, and modeling with the dimension numerical data. Moreover, it is also embodied in a three-dimensional modeling which results in the image processing programming created. Confirming the improvement of the program through the shape with the quality. In the Department of Synthetic Design, students have chances to realize and self-evaluate from the design of the lamp shade with a complicated shape. In the faculty of Health Science from Department of Health, high quality teaching of visually-impaired students through the use of bone model teaching materials has become possible in the medical-related courses.

摘要：We report the development of a metastasis-on-a-chip platform to model and track hepatocellular carcinoma(HCC)-bone metastasis and to analyze the inhibitory effect of an herb-based compound,thymoquinone(TQ),in hindering the migration of liver cancer cells into the bone *** bioreactor consisted of two chambers,one accommodating encapsulated HepG2 cells and one bone-mimetic niche containing hydroxyapatite(HAp).Above these chambers,amicroporous membrane was placed to resemble the vascular barrier,where medium was circulated over the *** was observed that the liver cancer cells proliferated inside the tumor microtissue and disseminated from the HCC chamber to the circulatory flow and eventually entered the bone *** number of metastatic HepG2 cells to the bone compartment was remarkably higher in the presence of HAp in the *** was then used as ametastasis-controlling agent in both free form and encapsulated nanoparticles,to analyze its suppressing effect on HCC *** indicated that the nanoparticle-encapsulated TQ provided a longer period of inhibitory *** summary,HCC-bone metastasis-on-a-chip platform was demonstrated to model certain key aspects of the cancer metastasis process,hence corroborating the potential of enabling investigations on metastasis-associated biology as well as improved anti-metastatic drug screening.