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We first state general linear model, ridge-type estimator and general ridge-type estimator, and the constraint biased estimator. And then, we introduce some basic theory about matrix and some conclusion about the admissibility of estimator in Gauss-Markov model. In the third chapter, we discussion several equivalent characterization of the best linear unbiased estimation, we proved that admissible characterization of admissible of linear estimation is as conditional general ridge-type estimation in general linear model. A necessary and sufficient condition that homogeneous linear estimator is admissible estimator is obtained.

本文首先概述了一般线性模型,岭估计及约束岭估计的发展历史和研究现状,在第二章介绍了矩阵的一些基本知识和可容许性的一些基本结论,第三章讨论了一般线性模型最佳线性无偏估计的几个等价条件,以及线性估计的可容许性特征,得到了一般线性模型的可容许线性估计均具有条件广义岭估计的形式,给出了一个齐次线性估计为可容许估计的充分必要条件。

Based on hydrogeology in Shenyang area, this essay has made study on exploring underground reservoir in rain season besides making full use of river runoff, taking surface water back to underground, and establishing canal surface water and groundwater united exploring mathematics model, working out canal and well optimal plan.

依据沈阳地区水文地质条件,论文提出在适时充分利用外河区间径流的条件下,探求利用地下库容调蓄汛期雨洪,将地表余水引进回灌地下,并建立了渠灌区地表水、地下水联合运用数学模型,推求出渠井联合运用比较方案。

Although the origin and mechanism of debris-flow can be clarified, by surveying and evaluating the characteristic indexes of debris-flow, such as cleugh configuration and geology condition, but in the forecast of debris-flow, it is also essential to adequately treasure and analyze the rainfall rate being a most important condition of extraneous cause.

勘测评估沟谷形态、地质条件等泥石流特征指标,可分析泥石流发生的成因与机理,在预测预报上,还应充分重视与分析泥石流发生时作为最重要外因条件的雨强。

It adequatelyanalyze the effect of changed boundary condition by combustion, and select themethod of judging flame spread on the surface of solid combustibility substance.

在模型中充分考虑了燃烧反应产生的可变边界条件的影响,并选取了合适的可燃性固体蔓延判定条件。

The definition of conditional mutual information between relative values is given to measure the attribute relevancy in a single sample,and the authors can fully make use of existing data to process incomplete information systems.

提出相对值条件互信息的概念衡量单一样本中各条件属性的相关性,可以充分利用现有数据处理不完备信息系统。

By weakening the premise of the convexity of the objective function required in paper[7], we prove the sufficient desent property and the global convergence with the strong Wolfe line search.

在第二章中,我们参照文献[7]中的方法,提出了一类与HS算法相关的共轭梯度算法,并减弱了文[7]中要求目标函数二阶连续可微且为凸的前提条件,采用强Wolfe线搜索,在较弱的条件下证明了这一类算法具有充分下降性和全局收敛性。

Optimizing culture condition of gametophyte should abide by such principle as maintaining lower pH and higher CO2 concentration.

优化海带配子体培养条件时维持海水培养基低pH(pH8.1-8.3)及高CO_2浓度是保证无机碳素充分供应的基本条件。

The cultivation environment's detection and the control are the collection bio-engineering agricultural engineering, it gets the best glooming condition of flowers and plants by controlling of tempreture, illuminance, humidity and so on, so that people can reach to improv quality of the flowers and plants.

栽培环境的检测及控制及时是集生物工程农业工程和环境工程为一体,跨部门、多学科综合的系统工程,是在充分利用自然环境条件的基础上,用人工控制环境因子如温度、光照度、湿度等的方法来获得花卉最佳生长条件,从而达到花卉的自然生长,改善品质涎长生长季节的目的。

On the basis of referring to preceding relevant achievements and exploring the entirestate of the occurrence and development of the RMA,the dissertation focuses on theRMA's origin,essence and mechanism.Then,it draws some conclusions:(1)Far fromoccasionally,the RMA has specific interior factors and external conditions.As a resultof the demand for international political and military struggle and the advancement inscience and technology,the RMA conforms to the trend of the times.(2)As far as itsessence is concerned,the RMA is such a process,during which all countries reformmilitary system wholly in order to realize its informatization,integration andintelligentization after information and knowledge have become dominant factors ofmilitary strength owing to extensive application of high technology around informationtechnology in the military field.(3)During the extensive and thorough reformation in thewhole world,all factors vary sooner or later and affect one another,and promote theevolution of the military system to make the transition from mechanized form tointelligentized one.

论文充分借鉴、吸收前人的有关研究成果,在分析、考察世界新军事革命发生、发展的总体状况的基础上,由具体到抽象,重点探讨了新军事革命的发生动因、本质特征和运行机制,认为:新军事革命的发生与发展不是偶然的,而有其特定的内在动因和外部条件,它既是时代发展变化的客观要求,也是国际政治军事斗争需要与科学技术进步共同推动的结果;这场军事革命的实质,是在以信息技术为核心的高新技术广泛应用于军事领域,信息与知识日益成为军事力量的主导性要素的新条件下,世界各国根据系统原则对军事领域进行变革,努力促使整个军事系统实现信息化、知识化、一体化,进而形成全新的智能化军事形态的过程;新军事革命具体表现为广泛而深入的军事改革,在其发生与发展的过程中,军事诸要素先后变革并相互影响、相互作用,推动整个军事系统不断演进,逐步实现机械化军事形态向智能化军事形态的过渡,最终确立全新的智能化军事形态。

The impacts of printing process and curing condition on antenna resistance are shown as follows: higher resistance of a printing antenna is generated not only by higher print pressure and velocity, which result in inadequate ink transfer, but also by lower curing temperature and shorter curing time, which can result in imperfect combustion of organic vehicles in silver ink.

印刷工艺与固化条件对天线电阻的影响主要表现在:较高的印刷速度与印刷压力会使银浆转移不充分,并导致天线电阻增加;而较低的固化温度、较短的固化时间也会使银浆中的有机载体不能充分燃烧,从而增加天线电阻。

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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!

Several theories about reigniting and extinguishing of the arc have been refered.

本文综合考虑了几种电弧重燃和熄灭理论。