A NEW INTRODUCTION TO MODAL LOGIC Preface ix Part One: Basic Modal Propositional Logic 1 The Basic Notions 3 The language of PC C) Interpretation D) Further operators F) Interpretation of A , D and s G) Validity (8) Testing for validity: (i) the tru
A Practical Guide to Ubuntu Linux Ubuntu Linux 实战手册 183 7 The Shell 219 PART III Digging into Ubuntu Linux 249 8 Linux GUIs: X and GNOME 251 9 The Bourne Again Shell 275 10 Networking and the Internet 353 11 Programming the Bourne Again Shell 395 x
C o py r ig ht (C ) 1 9 9 9 Alle n B . Dow ne y T his b o o k is a n O p e n So ur c e Te x tb o o k (O ST ). Pe r mis s io n is g r ante d to r e pr o -duc e , s to r e o r tr a ns mit the te x t o f this b o o k by a ny me a ns , e lec tr ic a l,
字母A~Z走迷宫maze,如图成功: A B C . . . . . . . . . D . . . . . . . . . E . . . . . . . . . F . . . . . . . . . G H . . . . . . . . . I . . . . . . . . . J . . . X W V . . . K L M Z Y T U . . . . . N O P S . . . . . . . . Q R . 如图失败: A T U P O . . . . . B S
根据定子磁场定向控制理论,提出一种基于 d轴电流直接求解的磁链、转速、转矩闭环定子磁场定 向控制系统。定子磁链观测器采用电压、电流混合模型,从原理上分析了模型切换点选取方法。通过 M a f l a b / S i m u l i n k 仿真验证了该控制系统在动态响应过程中,定子磁链的稳定性好、转矩响应快等优点。