扰动

This paper deals with the existence and nonexistence of solutions for a critical semilinear polyharmonic equation with a non-negative perturbation.

李爱翠 ，黄力民，曾宪忠讨论了带非负扰动的临界非齐次多重调和方程多解存在性和非存在性。

According to the method of aircraft system simulation, the control law is validated by simulation based on the population parameter equation of motion of an aircraft. The results indicate that the control law can meet the requests of the UAV, which are safe launch, stable climb, steady fight along the designated altitude and heading holding certain attitude. And then, the UAV can fly following the scheduled fairway.

利用飞机系统仿真的方法，采用飞机全量扰动运动方程对该型无人机飞行控制系统的控制律进行了仿真验证，结果表明，文中所设计的该型无人机飞行控制系统的控制律可以实现该无人机安全发射、稳定爬升、高度稳定、姿态稳定、航向稳定的要求，进而可以实现无人机按预定航路的飞行。

Chaos perturbation is used to improve selection strategy to avoid precocity and stagnation.

在基本蚁群算法的概率转移中引入混沌扰动的策略，以使解易于跳出局部极值区间，加快收敛速度。

Common multiple compound control is switched automatically by program based on predeterminate error value. Therefore, how to select suitable error value and disturbance during switching are unavoidable defects.

由于常规多模复合控制是按照事先设计的切换阀值由程序自动进行切换，所以它们存在阀值如何选取和切换扰动等问题。

The respect is affected in what income allocation grows to economy, article key introduced theoretic development to must compare sufficient political economy mechanism, and education, bear the mechanism; such as stability of decision-making, society and market dimensions to be in respect of evolution of income distributive trends, the article introduced inside the manpower capital mechanism that gives birth to income allocation pattern, salary mechanism, interest rate mechanism, the preference of the relation that inspected development of technical change, finance and income to allocate dynamic evolution and Lucas disturbs academic.

在收入分配对经济增长的影响方面，本文重点介绍了理论上发展得比较充分的政治经济机制，以及教育—生育决策、社会稳定性和市场规模等机制；在收入分配的动态演化方面，本文介绍了内生收入分配格局的人力资本机制、工资机制、利率机制，考察了技术变化、金融发展与收入分配动态演化的关系及Lucas的偏好扰动理论。

The presumable range of initial disturbances for rocket under random excitation has been given.

给出了在随机激励作用下火箭初始扰动的可能域。

This paper presents a new interior point nonlinear programming algorithmfor optimal power flow problems based on the perturbed KKT conditionsof the primal problem with a novel data structure.

基于原问题的扰动KKT条件，本文提出了一种带新数据结构的原始－对偶内点算法求解电力系统最优潮流问题。

According to the resonance mechanism, power disturbance of prime mover can arouse power system forced low frequency oscillations.

文中根据汽轮机功率扰动引起电力系统低频振荡的共振机理，研究了汽轮机功率变化的原因。

Based on Taylor decomposition and the principal of matrix turbulence,the measuring error of structured light and error from light-plane calibration were analyzed,in which cross-ratio invariant was used in calibration of structured light system.

本文针对交比不变原理的结构光光平面标定方法，利用泰勒展开和矩阵扰动原理分别对系统的测量误差和光平面标定误差进行分析，提出了结构光测量系统的误差传递模型。

In order to analyze the robustness of a system under structured perturbations, Hinrichsen Pritchard et al have introduced the notion of stability radius.

为了衡量一个系统在结构扰动下的鲁棒性，Hinrichsen、Pritchard等人引入了稳定半径的概念。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。