一、林业推广的概念 “推广”在《辞海》中的解释是“推动”;而在现代汉语词典》中的解释就是“扩大事物的使用范围或 者起作用的范围”。在日常生活之中,“推广”泛指采用一定的方法、使用某种新知识或者新技术广为传播并 且使大家实施、取得一定的效果

3.1精密光学经纬仪的基本构造 3.2双平行玻璃板光学测微器构造及测微原理简介 3.3双光楔光学测微器的构造及测微原理 3.4垂直度盘指标自动归零的补偿原理 3.5经纬仪的视准轴误差和水平轴倾斜误差 3.6经纬仪的垂直轴倾斜误差 3.7精密测角的误差影响 3.8方法观测法 3.9分组方向观测法 3.10偏心观测与归心改正

Lecture 1: Input/Output and State-Space Models This lecture presents some basic definitions and simple examples on nonlinear dynam

3.1.2 A general uniqueness theorem The key issue for uniqueness of solutions turns out to be the maximal slope of a=a(a) to guarantee uniqueness on time interval T=[to, t,, it is sufficient to require existence of a constant M such that

with x(0)=I exist and are unique on the time interval t E [ 0, 1] for allTER\.Then discrete time system(4. 1)with f(5)=r(, i)describes the evolution of continuous time system(4.)at discrete time samples. In particular, if a is continuous then so is f Let us call a point in the closure of X locally attractive for system(4. 1)if there exists

Massachusetts Institute of Technology Department of Electrical Engineering and Computer Science 6.243j(Fall 2003): DYNAMICS OF NONLINEAR SYSTEMS

Proof Existence and uniqueness of r(t, u)and A(t)follow from Theorem 3. 1. Hence, in order to prove differentiability and the formula for the derivative, it is sufficient to show that there exist a function C: R++R+ such that C(r)/r-0 as r-0 and E>0 such

12.1 Systems with controllable linearizations A relatively straightforward case of local controllability analysis is defined by systems with controllable linearizations 12.1.1 Controllability of linearized system Let To: 0, THR, uo: 0, T]H Rm be a

Using control authority to transform nonlinear models into linear ones is one of the most commonly used ideas of practical nonlinear control design. Generally, the trick helps one to recognize \simple\nonlinear feedback design tasks

在上世纪初,发生了三次概念 上的革命,它们深刻地改变了人们 对物理世界的了解,这就是狭义相 对论(1905)、广义相对论(1916) 和量子力学(1925)