查询词典 necessary and sufficient conditions

The concept of harmonic control between two systems is presented. Necessary and sufficient conditions are given for harmonical stabilization of two systems. These results can be generalized to harmonic stability problems for more than two systems. Examples are given to illustrate the results.

提出了两个系统协调控制的概念，主要研究了不同系统间的互助合作问题，给出两个系统间可协调稳定的充要条件及构造协调控制律的算法，并举例说明了所给结果的有效性，这些结果都可以向多系统协调稳定问题推广。

This, however, is where the more abstract and general characterization of the necessary and sufficient conditions for Humean skepticism pays off.

无论如何，这是给出的对Hume式怀疑论的充分、必要条件更理论和一般性的刻画。

This dissertation gives necessary and sufficient conditions for 2-torus parabolic maps to be invertible,which improves P.

本文首先给出了二维环面上抛物型映射可逆的充分必要条件，完善了P。

In the second part, necessary and sufficient conditions are derived for complete reachability and observability of periodic time-varying descriptor systems.

在第二部分中，我们先针对周期奇异系统的完全可达性与完成可观性，给出一系列的充分必要条件。

In this part, two kinds of parameter uncertainties are considered. For the parameter uncertainty of the form =EΣ, necessary and sufficient conditions for quadratically stabilizable with an H〓-norm bound are derived.

从工程应用的角度出发，对具有输出乘型不确定性系统的混合灵敏度问题的H〓状态反馈设计方法进行了研究，提出了一种基于观测器的鲁棒H〓/LTR状态反馈设计方法。

Necessary and sufficient conditions for the matrix equation to have symmetric positive semidefinite solutions are derived using the generalized singularvalue decomposition.

利用广义奇异值分解导出了该矩阵方程有对称半正定解的充分必要条件，并且给出了一般对称半正定解的表达式

Make full use of existing resources to create the greatest value is the development of necessary and sufficient conditions, the market now Tenebrio Molitor most of the products used in animal feed for this is not only a waste of resources but also Tenebrio Molitor for human resources, production of a waste of resources at the same time unable to gain the greatest benefits!

充分利用现有资源创造出最大的价值是发展的充要条件，现在黄粉虫市场有大部分的产品用于饲料加工这不仅是对于黄粉虫资源的浪费也是对于人力资源，生产资源的浪费同时也没能取得最大效益！

It can be decomposed into several disjoined subgraphs, which are also the necessary and sufficient conditions to determine R〓.

i给出了任意DAG G中可反向边构成的子图R〓的整体结构特点，它可以分解成若干满足某些条件的最大连通子图的并，这一特点也是判断R〓的充要条件。

The necessary and sufficient conditions for the optimal solution of the 3-impulse rendezvous whether or not with terminal coastings were derived, and the corresponding solution method was given respectively.

推导了存在端点滑行段和不存在端点滑行段两种三脉冲最优解的充要条件，并给出相应的解法。

Ad Hominem, Appeal to Authority, Appeal to History, Appeal to Popularity, Circularity, Confusing Necessary and Sufficient Conditions, Correlation not Causation, Inconsistency, Generalisation, Restricting the Options, Slippery Slope, Straw Man, Tu Quoque, Weak Analogy.

对古代先贤，则更是五体投地，如何能够参悟了这样的玄机，不多不少。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。