摘要：Airship shape is crucial to the design of stratosphere airships. In this paper, multidisciplinary design optimization (MDO) technology is introduced into the design of airship shape. We devise a composite objective function, based on this technology, which takes account of various factors which influence airship performance, including aerodynamics, structures, energy and weight to determine the optimal airship shape. A shape generation algorithm is proposed and appropriate mathematical models are constructed. Simulation results show that the optimized shape gives an improvement in the value of the composite objective function compared with a reference shape.

摘要：In the process of multidisciplinary design optimization, there exits the calculation complexity problem due to frequently calling high fidelity system analysis models. The high fidelity system analysis models can be surrogated by approximate models. The sensitivity analysis and numerical noise filtering can be done easily by coupling approximate models to optimization. Approximate models can reduce the number of executions of the problem's simulation code during optimization, so the solution efficiency of the multidisciplinary design optimization problem can be improved. Most optimization methods are based on gradient. The gradients of the objective and constrain functions are gained easily. The gra- dient-based Kriging (GBK) approximate model can be constructed by using system response value and its gradients. The gradients can greatly improve prediction precision of system response. The hybrid optimization method is constructed by coupling GBK approximate models to gradient-based optimiza- tion methods. An aircraft aerodynamics shape optimization design example indicates that the methods of this paper can achieve good feasibility and validity.

摘要：On the basis of the current sheet model,a new analytical solution for permanent magnet(PM) bearings is *** with analytical methods based on the coupling energy model and the magnetic dipole model,the proposed one is more physically intuitive and convenient for engineering *** to the analytical model,the thrust characteristics of a novel PM thrust bearing is studied and verified by finite element analysis(FEA).In the proposed thrust bearing configuration,the rotor is composed of stacked PM rings with alternative axial magnetization directions,and the stator with alternative radial magnetization directions while copper rings are used to separate adjacent PM rings.A prototype PM thrust bearing with the proposed configuration is designed and *** performances of the PM thrust bearing are experimentally *** is shown that the calculation accuracy of the presented analytical solution is satisfying.

摘要：We propose the spectrum allocation and resource scheduling algorithms in cognitive point to multipoint (PMP) networks with rapid changes of spectrum opportunities and present a media access control (MAC) protocol based on these algorithms. The objective of spectrum allocation is to make efficient use of the spectrum while maintaining the transceiver synchronization on frequency and time in the network. The objective of resource scheduling is to guarantee the quality of service (QoS) requirements of different kinds of connections and to minimize the total energy consumption in the network as well. By sensing only a small set of possible channels in each slot based on the state transition probability of each channel, our spectrum allocation algorithm achieves high spectrum efficiency in the network. The resource scheduling problem is divided into three sub problems and we derive optimal solutions to these problems by greedy algorithm and convex optimization. The simulation results show that our algorithm can make efficient use of the spectrum and the network resources at a cost of low computational complexity.

摘要：在这份报纸，我们学习为活动机器人的领导人追随者形成建模并且控制的问题。首先，为领导人追随者机器人形成的一个新奇 kinematics 模型基于在机器人和追随者机器人的本地运动之间的相对运动状态被提出。用这个模型，向心的亲戚和在机器人之间的 Coriolis 加速被测量相对、本地的运动传感器直接计算，并且利用了线性化非线性的系统方程。一个形成控制器，由反馈 linearization 部分和一个滑动模式赔偿者组成，被设计包括内部动力学稳定全面系统。控制获得被解决坚韧性不平等决定并且假定满足保证形成系统的零动力学的稳定性的一个合作协议。建议控制器为追随者机器人产生命令的加速并且使形成控制系统柔韧到领导人机器人的无节制的加速的效果。而且，一个柔韧的适应控制器被开发在系统处理参量的无常。模拟和试验性的结果表明了建议控制方法的有效性。

摘要：By proposing the multi-step control set and using it as the terminal set, a new design method of robust model predictive control (MPC) is presented for the constrained polyhedral uncertain systems. Through designing a series of feedback control laws, the new robust controller can achieve large feasible region and high control performance. The characteristic property of the multi-step control set also makes it possible to derive an algorithm with low online computation burden. It could make a good trade off among the initial feasible region, the control performance, and the online computation burden. The numerical examples verify these results.

摘要：The instruction fetch unit （IFU） usually dissipates a considerable portion of total chip power. In traditional IFU architectures, as soon as the fetch address is generated, it needs to be sent to the instruction cache and TLB arrays for instruction fetch. Since limited work can be done by the power-saving logic after the fetch address generation and before the instruction fetch, previous power-saving approaches usually suffer from the unnecessary restrictions from traditional IFU architectures. In this paper, we present CASA, a new power-aware IFU architecture, which effectively reduces the unnecessary restrictions on the power-saving approaches and provides sufficient time and information for the power-saving logic of both instruction cache and TLB. By analyzing, recording, and utilizing the key information of the dynamic instruction flow early in the front-end pipeline, CASA brings the opportunity to maximize the power efficiency and minimize the performance overhead. Compared to the baseline configuration, the leakage and dynamic power of instruction cache is reduced by 89.7% and 64.1% respectively, and the dynamic power of instruction TLB is reduced by 90.2%. Meanwhile the performance degradation in the worst case is only 0.63%. Compared to previous state-of-the-art power-saving approaches, the CASA-based approach saves IFU power more effectively, incurs less performance overhead and achieves better scalability. It is promising that CASA can stimulate further work on architectural solutions to power-efficient IFU designs.

摘要：Baseband ASIP designs for handsets are discussed based on the author's R&D backgrounds. Algorithms for 4G, 3G, and WLAN are analyzed and selected for implementation based on the trade off of cost and performance with power consumption in mind. A SDR ASIP baseband system architecture is proposed for 4G and 3G mobile handsets. Function partitions for heterogeneous symbol processors are introduced to get higher performance over cost. Three structures for DFE, FFE, and Matrix symbol ASIP are proposed. The concept of bit parallel processor is introduced. Challenges of baseband processors for UDN of 5G were briefly introduced. Conclusions on ASIP architecture and system design are given for different baseband processors on different products.

摘要：Lyapunov 功能在串联为二条开的隧道的盒子基于熵的加权的和被构造，它被 Saint-Venant 方程描述。边界反馈控制器的一个班被介绍借助于 Lyapunov 设计途径在平衡点的一位邻居保证本地靠近环的 asymptotic 稳定性。

摘要：酸的 oligosaccharide 糖链(AOSC ) ， D-mannuronic 酸 oligosaccharide，源于棕色的水藻多糖，被完成了阶段我在是的中国的临床的试用 anti-Alzheimer 的疾病(广告) 药候选人。在神经原的 AOSC 有约束力的蛋白质的鉴定为理解它的行动机制是很重要的。为了在调停的神经原决定 AOSC 的有约束力的蛋白质，它的反广告活动，共焦的显微镜学，亲密关系层析，和液体层析双人脚踏车集中 spectrometry (LC-MS/MS ) 分析被使用。AOSC 在集中绑在 SH-SY5Y 房间的共焦的显微镜学分析表演 -- ，时间 -- ，并且温度依赖者时尚。AOSC 有约束力的蛋白质被亲密关系层析净化并且由 LC-MS/MS 分析识别了。结果证明有 349 蛋白质绑定 AOSC，包括 clathrin，适配器 protein-2 (AP-2 ) 和淀粉的先锋蛋白质(应用软件) 。这些结果建议到神经原的 AOSC 的绑定 / 入口为反广告活动可能负责。