To counter BTT guidance mode, new relative motion equations of the targetaircraft and the attack aircraft are proposed. The inverse system theory of the nonlinearcontrol is used, and the direct BTT-180 guidance comman...To counter BTT guidance mode, new relative motion equations of the targetaircraft and the attack aircraft are proposed. The inverse system theory of the nonlinearcontrol is used, and the direct BTT-180 guidance command is solved, which can operatethe attack aircraft to automatically complete the flight mission of the preceding stage ofthe terminal weapon delivery, and thus the automatic attack is extended from the stage ofthe terminal weapon delivery to the preceding stage of the terminal weapon delivery.展开更多
By using function one direction S-rough sets （function one direction singular rough sets）, the concept of one direction rough law is proposed, where one direction rough law is the law pair { w（x）-, w（x） - } comp...By using function one direction S-rough sets （function one direction singular rough sets）, the concept of one direction rough law is proposed, where one direction rough law is the law pair { w（x）-, w（x） - } composed by w（x）- and w（x）-, ffthe attribute set {a_ , a-} of function one direction S-rough sets changes, then one direction rough law { w（x）_, w（x）- } will change, too. By employing ellipse curves, the concept of one direction rough law security is presented, the security theorem of one direction rough law is proposed and the applications are given. One direction rough law security, which is generated by the intersection and penetration between function one direction S-rough sets and ellipse curves, is a new applied research direction of function S-rough sets.展开更多
Directly Applicable Law is an important achievement theory of private international law in the late nineteen fifties, widely used by states. The people＇ s Republic of China foreign civil legal relationship applicable...Directly Applicable Law is an important achievement theory of private international law in the late nineteen fifties, widely used by states. The people＇ s Republic of China foreign civil legal relationship applicable law established the frame of our country＇ s Directly Applicable Law in the legislative level. In practice, there exists some shortcomings in the use of the rules and theory of Directly Applicable Law. In this paper, the author defines the rules from the micro level to order picture from macro level as the starting point, discussed the perfect approach of Directly Applicable Law from the dimension of the interpretation, system, evolution route ,and rethought our current legislative situation.展开更多
The profile features of the solidifying interface of the irregular Al-Si eutectic during directional solidification are studied by numerically solving a nonlinear coupling equation of directional solidification of thi...The profile features of the solidifying interface of the irregular Al-Si eutectic during directional solidification are studied by numerically solving a nonlinear coupling equation of directional solidification of this eutectic.The critical splitting point of the solidifying interface coincides with the maximum value of its position and corresponds to the marginal stability point.Argument is presented that the interlamellar spacing for local regular structure selects the critical splitting state of the α(Al)-liquid interface as its operating point,and the oper- ating point of the average interflake spacing for the irregular structure is the critical splitting state of the β(Si)-liquid interface.The scaling laws derived,which have the more general forms than the classic Jackson-Hunt scaling,gained support from the experimental results.展开更多
针对分数阶模型参考自适应系统(Fractional Order Model Reference Adaptive System,FOMRAS)在永磁直线同步电机(Permanent Magnet Linear Synchronous Motor,PMLSM)直接推力控制(Direct Force Control,DFC)下转速估计误差大、响应速度...针对分数阶模型参考自适应系统(Fractional Order Model Reference Adaptive System,FOMRAS)在永磁直线同步电机(Permanent Magnet Linear Synchronous Motor,PMLSM)直接推力控制(Direct Force Control,DFC)下转速估计误差大、响应速度慢、抗干扰能力差等现象,提出一种改进FOMRAS算法,即速度辨识中使用改进的分数阶自适应律,对转速进行跟踪,减小推力响应的抖动,确保估计值快速逼近真实值。运用于DFC中,实现无速度传感器控制。仿真结果表明:采取改进FOMRAS的无速度传感器PMLSM-DFC,抗扰动能力明显加强,具有良好的动静态能力,确保了系统稳定性。展开更多
文摘To counter BTT guidance mode, new relative motion equations of the targetaircraft and the attack aircraft are proposed. The inverse system theory of the nonlinearcontrol is used, and the direct BTT-180 guidance command is solved, which can operatethe attack aircraft to automatically complete the flight mission of the preceding stage ofthe terminal weapon delivery, and thus the automatic attack is extended from the stage ofthe terminal weapon delivery to the preceding stage of the terminal weapon delivery.
基金Natural Science Foundation of Fujian Province of China( No.2009J01293)Open Project of Brain-like Key Laboratory Research of Fujian Province of China (No. BLISSOS20101015)
文摘By using function one direction S-rough sets （function one direction singular rough sets）, the concept of one direction rough law is proposed, where one direction rough law is the law pair { w（x）-, w（x） - } composed by w（x）- and w（x）-, ffthe attribute set {a_ , a-} of function one direction S-rough sets changes, then one direction rough law { w（x）_, w（x）- } will change, too. By employing ellipse curves, the concept of one direction rough law security is presented, the security theorem of one direction rough law is proposed and the applications are given. One direction rough law security, which is generated by the intersection and penetration between function one direction S-rough sets and ellipse curves, is a new applied research direction of function S-rough sets.
文摘Directly Applicable Law is an important achievement theory of private international law in the late nineteen fifties, widely used by states. The people＇ s Republic of China foreign civil legal relationship applicable law established the frame of our country＇ s Directly Applicable Law in the legislative level. In practice, there exists some shortcomings in the use of the rules and theory of Directly Applicable Law. In this paper, the author defines the rules from the micro level to order picture from macro level as the starting point, discussed the perfect approach of Directly Applicable Law from the dimension of the interpretation, system, evolution route ,and rethought our current legislative situation.
文摘The profile features of the solidifying interface of the irregular Al-Si eutectic during directional solidification are studied by numerically solving a nonlinear coupling equation of directional solidification of this eutectic.The critical splitting point of the solidifying interface coincides with the maximum value of its position and corresponds to the marginal stability point.Argument is presented that the interlamellar spacing for local regular structure selects the critical splitting state of the α(Al)-liquid interface as its operating point,and the oper- ating point of the average interflake spacing for the irregular structure is the critical splitting state of the β(Si)-liquid interface.The scaling laws derived,which have the more general forms than the classic Jackson-Hunt scaling,gained support from the experimental results.
文摘针对分数阶模型参考自适应系统(Fractional Order Model Reference Adaptive System,FOMRAS)在永磁直线同步电机(Permanent Magnet Linear Synchronous Motor,PMLSM)直接推力控制(Direct Force Control,DFC)下转速估计误差大、响应速度慢、抗干扰能力差等现象,提出一种改进FOMRAS算法,即速度辨识中使用改进的分数阶自适应律,对转速进行跟踪,减小推力响应的抖动,确保估计值快速逼近真实值。运用于DFC中,实现无速度传感器控制。仿真结果表明:采取改进FOMRAS的无速度传感器PMLSM-DFC,抗扰动能力明显加强,具有良好的动静态能力,确保了系统稳定性。
