该文提出从互联网、物联网到智慧地球,一个由低级到高级、由简单到复杂的地球神经网络(ENN:Earth Neural Network)正在快速进化,文中对其雏形感测网进行了系统的分析和论述,重点研究了开放地理空间联盟的Sensor Web Enablement框架和和...该文提出从互联网、物联网到智慧地球,一个由低级到高级、由简单到复杂的地球神经网络(ENN:Earth Neural Network)正在快速进化,文中对其雏形感测网进行了系统的分析和论述,重点研究了开放地理空间联盟的Sensor Web Enablement框架和和微软的SenseWeb实践,最后探讨ENN的进化,论证了智能感测设备和感测网的出现是其演进历程的两个重要事件,以及泛在化、普适化、中枢化的进化趋势,和中枢系统的结构等级化、功能区块化等分化特点,并预测ENN将渗透到人类与自然的发展进程中,普适计算、智能空间和智慧地球也必将深深地依赖于这个网络。展开更多
An empirical hybrid shock absorber model capable of capturing nonlinear and hysteresis characteristics of shock absorbers is built.The nonlinear characteristics are modeled by algebraic function and the hysteresis eff...An empirical hybrid shock absorber model capable of capturing nonlinear and hysteresis characteristics of shock absorbers is built.The nonlinear characteristics are modeled by algebraic function and the hysteresis effects between shock force and shock velocity are modeled by neural network.To develop the empirical hybrid shock absorber model,a Mazda CX-7 front shock absorber is tested by a displacement-controlled hydraulic shock absorber testing machine.The hybrid shock absorber model is built and validated using the experimental shock absorber data.The RMS value for the hybrid shock absorber model is 60.28N at the velocity range from-1.3m/s to 1.3m/s.展开更多
文摘该文提出从互联网、物联网到智慧地球,一个由低级到高级、由简单到复杂的地球神经网络(ENN:Earth Neural Network)正在快速进化,文中对其雏形感测网进行了系统的分析和论述,重点研究了开放地理空间联盟的Sensor Web Enablement框架和和微软的SenseWeb实践,最后探讨ENN的进化,论证了智能感测设备和感测网的出现是其演进历程的两个重要事件,以及泛在化、普适化、中枢化的进化趋势,和中枢系统的结构等级化、功能区块化等分化特点,并预测ENN将渗透到人类与自然的发展进程中,普适计算、智能空间和智慧地球也必将深深地依赖于这个网络。
基金Supported by the National High Technology Research and Development Programme of China(No.2008AA11A143)
文摘An empirical hybrid shock absorber model capable of capturing nonlinear and hysteresis characteristics of shock absorbers is built.The nonlinear characteristics are modeled by algebraic function and the hysteresis effects between shock force and shock velocity are modeled by neural network.To develop the empirical hybrid shock absorber model,a Mazda CX-7 front shock absorber is tested by a displacement-controlled hydraulic shock absorber testing machine.The hybrid shock absorber model is built and validated using the experimental shock absorber data.The RMS value for the hybrid shock absorber model is 60.28N at the velocity range from-1.3m/s to 1.3m/s.
