金矿氰化工艺中的MFA控制

介绍了金矿氰化工艺中的MFA控制，包括工作原理和系统设计，并举例说明。     

Leader-follower formation control without leader’s velocity information

In this paper,we consider the mobile robots formation control problem without direct measurement of the leader robot’s linear velocity.Two decentralized nonlinear algorithms are proposed,respectively,based on adaptive dynamic feedback and immersioninvariance estimation based second order sliding mode control methodologies.The main idea is to solve formation problem by estimating the leader robots’s linear velocity,while maintaining the given predefined separation distance and bearing angle between the leader robot and the follower robot.The stability of the closed-loop system is proven by means of the Lyapunov method.The proposed controllers are smooth,continuous and robust against unknown bounded uncertainties such as sensor inaccuracy between the outputs of sensors and the true values in collision free environments.Simulation examples and physical vehicles experiments are presented to verify the effectiveness of the proposed design approaches,and the proposed designed methodologies are carefully compared to illustrate the pros and cons of the approaches.     

嵌入式Linux中基于Qt/Embeded 触摸屏驱动的设计

本文主要介绍了在嵌入式Linux系统下基于Qt/Embeded的触摸屏驱动的设计,通过对Linux设备驱动和Qt/Embedded设备驱动接口的工作原理和机制介绍,并结合大量源代码进行分析,提出了基于Qt/Embeded的触摸屏驱动的开发方案。     

独立设计师：杨明洁、杨威杰

你们应该代表了一部分独立设计人的追求．能谈谈这种追求吗？     

基于嵌入式技术的工程机械监控系统的设计与实现

介绍了一种基于嵌入式技术的工程机械监控系统,具有CAN总线控制、通用无线分组业务传输、图像采集等功能,具体从硬件和软件上给出了该监控系统的设计和实现方法.     

500kV变电站安全稳定控制策略

介绍了罗平站安全稳定控制装置的控制策略,总结了策略实施过程中的一些经验。     

金矿氰化工艺中的MFA控制

基于酸浸在氰化工艺的重要性，针对加酸后PH反应的大滞后从而导致的控制不够准确及时，以某金矿采用无模型自适应控制技术（MFA）成功实现加酸自动控制为例，介绍了无模型自适应控制在PH＋大滞后的系统中强大的控制能力。     

Oxidation Behavior of In Situ-Synthesized (TiB+TiC)/Ti6242 Composites

The oxidation behaviors of TiB and TiC particle-reinforced, titanium-matrix composites (TMCs) were studied in air at 550–650°C, The oxidation kinetics follow approximately a parabolic rate law. The oxidation rates, which were lower than those of Ti6242, decrease gradually as oxidation proceeds. The oxide scales formed on TMCs were predominantly rutile and α-Al₂O₃. No B₂O₃ and other oxides were observed within the oxide scale. The in situ-synthesized TiB and TiC reinforcements can increase the oxidation resistance of TMCs. The oxide scales that formed exhibited excellent spallation resistance under all testing conditions. No scale cracking or spallation could be observed, implying that growth and thermal stresses generated during heating and cooling have been effectively released. The mechanisms of the decrease in oxidation rate and the improvement on spallation resistance are discussed based on microstructure studies.     

Synchronization of two electrically coupled inspiratory pacemaker neurons

Synchronization is considered to be a crucial mechanism that maintains respiratory rhythm.For understanding the effect of electrical coupling on the transition of the firing patterns and synchronization,we coupled two inspiratory pacemaker neurons together,and studied various synchronous behaviors between them.We firstly compared the bifurcation diagrams between the coupled neurons and single neuron,and found that the coupled neurons had a more complicated bifurcation mode.By increasing the coupling strength,the regular variation of phase differences was illustrated so that asynchronous and some synchronous states could be observed.These synchronous states were also shown in detail by phase portraits and firing series.In addition,we explored the ranges of different synchronous states,which attributed to different ranges of membrane capacitance and coupling strength.     

数字信号处理器第六讲DSP在雷达信号处理中的应用

引言 DSP是一种基于精简指令集的可编程数学计算芯片,可以对数字信号进行时频域变换、频谱分析、滤波、估值、增强、压缩等处理,广泛应用于家用电器、多媒体系统、雷达、卫星系统、移动通信、网络会议、医学仪器、