查询词典 disturbance

Since the species quantity at the shrub, herb and liane in D is more than that in C, The Shannon-Wiener index and the species' evenness showed that human-caused disturbance affected much more to the species at upper communities and the tall trees were not recovered entirely in D.

群落各层次的Shannon-Wiener指数及其均匀度计算表明，人为干扰对群落上层物种多样性影响较大，D群落高大乔木待恢复。D群落经过多年封山育林，由于种类入侵和竞争，正在形成物种更为丰富的当地典型地带性植被类型。

Functions: shading the light, extending the sleep time, and clearing away from the disturbance of external light during sleeping.

产品作用：遮光养神、延长睡眠，消除外界光线对您睡眠的干扰。

This study deals with butterfly diversity and conservation of rare as well as insect fauna species in Baishuijiang Natural Reserve in Gansu Province. The research includes field investigation, observation at certain time and places, captive breeding in experimental area etc. Butterfly species diversity in Baishuijiang Natural Reserve and variation regulation of butterfly diversity in different areas are studied. The relationof butterfly diversity with environmental factors such as vegetation destruction, human disturbance are strenthened in Bifeng Gully. The biology of two rare butterfly species is studied. Meanwhile, this study deals with insect α-diversity and β-diversity in Baishuijiang Natural Reserve and inquire into the mechanisms of ecological control by protecting and recovering vegetation. The research includes field capture with sweeping net, light trap, transect investigation.

在甘肃省白水江自然保护区碧峰沟通过野外调查、定点定时观察、实验地饲养等研究了白水江自然保护区两种珍稀蝴蝶红基美凤蝶和巴黎碧凤蝶的生物学特性，在保护区范围内通过网捕采集研究了蝶类物种多样性和不同区域内蝶类多样性的变化规律；同时在碧峰沟四种不同生境中通过灯诱获得标本，研究了该地区不同生境中的昆虫种类组成及其多样性，分析了决定物种丰富度的关键因子，与蝶类多样性进行了比较分析，并提出了具体的保护措施。

The incidence of posthospitaldischarge light-headedness, visual disturbance, and difficultywith walking was significantly higher in the pregabalin group.

出院后轻度头晕、视觉障碍和行走困难的发生率在普瑞巴林组显著较高。

The key technology of this method is to quickly converge the sensitive axes of the mechanical gyroscope to the intersection line of the meridional plane and the horizontal plane based on the principle of gyroscope compass, to isolate payload from platform disturbance with the gyroscope and two degrees of freedom gimbals, to obtain the attitude angle of the platform by electro-optical sensor on the gimbals, and to make the sight slaved to the sensitive axes of the gyroscope to realize the indirect stabilization.

利用陀螺罗经原理，使机械陀螺的敏感轴快速收敛于子午面和水平面的交线上，并借助陀螺定轴性和2自由度环架，使陀螺隔离运动载体的扰动；通过环架上的光电传感器测出运动载体的姿态角，使观瞄镜的瞄准线随动于陀螺的敏感轴，实现间接稳定。

Linear Fractional Transformation is adopted to translate the control of perturbation to the control of disturbance, then cost index is augmented, and with the min-max method, a robust receding horizon control law is derived. The sufficient conditions for the existence of the control law and closed-loop stability are also presented. The result is extended to time-invariant system with an infinite horizon, and its consistence with the robust control based on the concept of Quadratic Stability is verified.

首先利用线性分式变换，将摄动系统的鲁棒控制问题转化为对扰动系统的鲁棒控制问题；然后通过对性能指标的扩展，利用min-max方法，得到了鲁棒滚动时域控制律，并给出了其存在和使闭环系统渐近稳定的充分条件，并将结果扩展到对定常系统时域无穷的的情况，指出其与现有的基于二次型稳定概念提出的鲁棒控制的一致性。

Using the linear fractional transformation for the system model, the controller was designed based on H2/H∞ control by the method of linear matrix inequalities for the uncertain parameter and external disturbance in hydraulic servos.

针对液压伺服系统中参数时变和外界干扰的特点，通过运用线性分式变换得出系统的传递函数，运用线性矩阵不等式处理方法，设计出基于H_2/H_∞控制的控制器。

Firstly, Receding horizon H〓 control based on state feedback with terminal constraints is proposed for systems with disturbance inputs and parameter perturbations. Linear Fractional Transformation and some existed results on Receding horizon H〓 control for systems without perturbations are introduced.

首先针对同时存在外界输入扰动和自身参数摄动的不确定线性时变系统，利用线性分式变换和现有的一些无摄动系统滚动时域H〓控制的结果，得到了基于状态反馈的终端约束滚动时域H〓控制器的设计方法，并给出了控制律存在和使闭环系统渐近稳定的充分条件。

Some algebraic criterion of almost sure exponential stability are obtained when the disturbance term of the network satisfies the Lipschitz condition.

当细胞神经网络模型的抚动项满足Lipschitz条件时，得到一些几乎必然指数稳定的代数准则。

In addition to improving the coral livability, sometimes intermediate disturbance is necessary.

国际上通用的生态修复策略主要是根据珊瑚的两种繁殖方式进行的，此外再配合人为的适度干扰，增加珊瑚的成活率。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！