摘要：Modularized circuit designs for chaotic systems are introduced in this ***,a typical improved modularized design strategy is proposed and applied to a new hyper-chaotic system circuit *** this paper,the detailed design procedures are *** simulations and physical experiments are conducted,and the simulation results are compared with Matlab simulation results for different system parameter *** results are consistent with each other and they verify the existence of the hyper-chaotic attractor for this new hyper-chaotic system.

摘要：氧化钼(MoO_(3))是一种具有吸引力的锂离子电池(LIBs)负极材料;然而,其导电性低、锂化后体积膨胀大、锂离子扩散动力学缓慢等特点严重限制了其实际应用.本文中,我们利用高量Mo/N掺杂的碳前驱材料合成了超细的MoO_(3)纳米颗粒(NPs,10–15 nm),所合成的MoO_(3)NPs被限制在原位生成的N掺杂碳网络结构中.这种设计既促进了快速的电子传导,又缩短了锂离子扩散路径;同时,MoO_(3)表面丰富的氮物种和氧缺陷有助于降低锂离子的吸附能垒,这些共同支持了MoO_(3)NPs在高电流倍率下耐久储锂性能的提升.值得注意的是,所获得的NCMoO_(3)纳米复合材料表现出1362 mA h g^(−1)(0.1 A g^(−1))的较高容量,并在10.0 A g^(−1)时保持394 mA h g^(−1)的可逆容量.全电池测试表明:在大倍率5 C下,LiFePO_(4)//NC-MoO_(3)-400电池仍可以输出81 mA h g^(−1)的比容量.我们的工作有望启发其他嵌入导电碳网络的过渡金属氧化物的设计合成及其在LIBs中的实际应用.

摘要：The consensus problem of a linear discrete-time multiagent system with directed communication topologies was investigated.A protocol was designed to solve consensus with an improved convergence speed achieved by designing protocol *** closed-loop multi-agent system converged to an expected type of consensus function,which was divided into four types:zero,nonzero constant vector,bounded trajectories,and ramp *** algorithm was further provided to construct the protocol gains,which were determined in terms of a classical pole placement algorithm and a modified algebraic Riccati ***,an example to illustrate the effectiveness of theoretical results was presented.

摘要：2008年以来,通过引进和消化国外高速铁路先进技术,联合设计生产和在此基础上的再创新,中国高速铁路技术进入了世界前列,并建成了世界上规模最大,技术水平最高的高速铁路网,大幅改善了中国的交通状况,带动了区域经济和装备制造业的发展。新的中长期铁路网规划的发布和"一带一路"及中国铁路"走出去"战略的实施,给高速铁路技术提出了新的要求。未来需要将现代科学的最新进展与高速铁路建设、运营、维护和管理的工程进一步结合,通过创新支撑中国乃至世界高速铁路的可持续发展。

摘要：A method of enhancing power system stability for a single machine to infinite bus power system is presented. The technique used compromises the effectiveness of Proportional-Integral-Derivative controller （PID）. In order to satisfy the damping characteristics for the proposed power system over a wide range of operating interval, rotational speed, torque angle and terminal voltage signals of the synchronous machine are utilized as control signals of the system. It is well known that these variables have significant effects on damping the generators shaft mechanical oscillations, it＇ll be so easy to validate the most suitable controller as seen from the simulation results.

摘要：一个零速度的鳍 stabilizer 系统为卷一个海洋的机器人的控制被开发。作为以低速度在海表面附近驾驶设备的一个机器人，它将让从波浪由于骚乱卷运动。把机器人基于零速度的鳍 stabilizer 和一个水兵的工作原则动态性质，抑制控制器的转动与主人奴隶结构被设计。它由追踪计算需要的 righting 时刻并且驾驶零速度的鳍 stabilizer 的控制器的一个滑动模式控制器和产量组成。输入产量 linearization 和模型引用的方法被用来认识到追踪的控制。模拟被介绍证明控制法律的有效性求婚了。

摘要：本文分析了基于PON(无源光网络)的矿山综合自动化系统平台的设计与集成应用。本章从系统硬件及软件设计等方面对其进行了详细的描述。结果表明:该系统可有效提高工作效率,降低管理成本。介绍了PON的基本工作原理及其结构,并结合某矿山信息传输的特点将基于PON的接入网和以太网相结合设计了一套综合自动化网络平台。

摘要：One-dimensional ring power system is discredited to a number of nodes each containing a generator with internal reactance and load branch of resistance and reactance with a certain power factor. When a disturbance occurs at any machine in the power system, simulative analysis is performed to verify how the variation of load power factor affecting the behavior of electromechanical wave propagation by using the MATLAB package, from which different situations are presented and discussed. These results show the type of load has no effect on the behavior of electromechanical wave propagation.

摘要：本文提出了一种以增强型微控制器STM32F103RBT6为核心的智能巡线机器人,阐述了系统的巡线控制原理、硬件构造,分析了传感器的黑白标定软件设计。该系统采用两个由4个分立元件(MOS管)构成的H桥驱动电路分别驱动左右两个电机,并且通过改变电压极性及脉冲宽度调制波(PWM)来调整机器人的行走方向和速度,并在行走过程中运用传统PID控制进行调节。结果表明,设计方式科学合理,机器人对场地适应性强、成本低、实用性强。

摘要：设计了一种基于ADXL345三轴加速度传感器的倾角测量系统。阐述了系统的组成及工作原理,其控制芯片采用超低功耗、高性能单片机MSP430F149。系统通电后,ADXL345输出一个与加速度成正比的电压值,该电压值经传感器内部AD转换器转换成相应的数字信号,而数字信号经MSP430F149处理运算,可转化成倾角值显示在LCD显示屏上。实验表明:与传统的倾角仪相比,该系统结构简单、成本低、功耗小,使用方便,具有较高的灵敏度和响应速度,可满足实际工程应用要求。