An optimal experiment design (DED) with respect to the use of designing model-base controller was studied. The mean squared error at the setpoint is chosen as the performance criterion. Simple design formulas are deri...An optimal experiment design (DED) with respect to the use of designing model-base controller was studied. The mean squared error at the setpoint is chosen as the performance criterion. Simple design formulas are derived based on the asymptotic theory. The signal is used for the open loop experiment. The design constraint is the power of the process signal or the process input signal. The results give guideline for identification application.展开更多
He CEL-3是一个高温、高压、高流量的氦气冷却实验回路,主要用于聚变堆包层部件热工水力实验。根据实验回路的系统设计与布局参数,运用APROS软件对回路建模,模拟氦气在不同工况下的温度、压力、流量等重要工艺参数分布与变化,以及重要...He CEL-3是一个高温、高压、高流量的氦气冷却实验回路,主要用于聚变堆包层部件热工水力实验。根据实验回路的系统设计与布局参数,运用APROS软件对回路建模,模拟氦气在不同工况下的温度、压力、流量等重要工艺参数分布与变化,以及重要设备如印刷电路板式换热器(PCHE)和风机等在运行或状态切换过程中的瞬态参数,以获得热工特性曲线。目前He CEL-3实验回路已建设完工,回路已完成部分运行状态的实验研究工作。通过对模拟获取的热工特性与调试实验参数进行对比,以验证APROS模拟方法的有效性与适用性,为未来运用该方法设计和运行聚变堆氦气冷却回路提供参考。展开更多
Efforts to find an ideal model for pancreatitis date back to 1960’s. Many models are suggested since then. Every model has its own advantages and disadvantages. Some of these models test etiology while others simulat...Efforts to find an ideal model for pancreatitis date back to 1960’s. Many models are suggested since then. Every model has its own advantages and disadvantages. Some of these models test etiology while others simulate the complications of pancreatitis. An ideal model which by itself demonstrates all aspects of pancreatitis including systemic changes is yet to be described. In this review we tried to gather the basic, easy to construct models.展开更多
基金High Technology Research and Development Program me of China (No.2 0 0 1AA413 13 0 )
文摘An optimal experiment design (DED) with respect to the use of designing model-base controller was studied. The mean squared error at the setpoint is chosen as the performance criterion. Simple design formulas are derived based on the asymptotic theory. The signal is used for the open loop experiment. The design constraint is the power of the process signal or the process input signal. The results give guideline for identification application.
文摘Efforts to find an ideal model for pancreatitis date back to 1960’s. Many models are suggested since then. Every model has its own advantages and disadvantages. Some of these models test etiology while others simulate the complications of pancreatitis. An ideal model which by itself demonstrates all aspects of pancreatitis including systemic changes is yet to be described. In this review we tried to gather the basic, easy to construct models.
