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In view of the uncertainty of the real world, trust theory and statistical learning theory are combined to generalize the key theorem and the bounds on the rate of uniform convergence of learning theory. This paper mainly investigates the basic problems of statistical learning theory with rough samples.

考虑到现实世界的不确定性,本文结合统计学习理论和信赖理论的知识,讨论了基于粗糙样本的统计学习理论的基本问题,对作为统计学习理论基础的关键定理和学习过程一致收敛速度的界进行了推广。

The main contents are as follows.1 For the state control problem in closed quantum systems, according to the distance between states, the error between states and the average value of an imaginary mechanical quantity, three Lyapunov functions are chosen, respectively. The corresponding control law designs and the convergence analyses are studied. Especially, for the Lyapunov function based on the distance between states, a class of control laws that can solve the problem that an initial state is orthogonal to a goal state is designed. The convergence of the system is analyzed via LaSalle\'s principle and one method to find the largest invariant set of the closed loop system is proposed by linearizing the unitary evolution operator at the corresponding instants.

在这一背景下,本论文在指出研究量子系统控制的必要性、回顾量子系统控制理论和方法的研究现状的基础上,从控制理论的角度研究Lyapunov理论和最优控制理论对于封闭量子系统的应用以及开放系统中的若干问题,主要内容包含以下几个方面。1针对封闭量子系统中的状态控制问题,根据状态间的距离、状态间的偏差、一个虚拟力学量的均值,分别选择三种Lyapunov函数进行相应的控制律设计和收敛性分析。

However, the limitations of the existing algorithms, such as methods in Newton kind, in detecting UPO and estimating system parameters online and the developments and demands of chaos control and synchronization form a sharp contrast.

迄今已提出的很多有效的混沌控制与同步方法,不仅为混沌理论走向应用准备必要的手段,而且在理论上促进了混沌理论和流体力学特别是湍流理论等方面的深入研究。

For the first patern, elastic dynamics is adopted to study the steady state rolling contact, elastic dynamics incorporating with rigid dynamics is adopted to study the non-steady state. For the steady state, the analytical solution is obtained, and for the non-steady state, the variational formulation to solve the problem numerically is derived For the later patern, the function type friction coefficient is introduced. On the basis of the quasi-stastic theories of constant friction coefficients, both the exact theory and the simplified theory of the function type friction coefficient are established, the computer programms for both the theories are also made out. Using the function type friction coefficient, Shen-Hedrick-Elkins theory's application range is extended to large creepage .

对于速度对接触体力学特性的影响,本文采用弹性动力学方法和弹性动力学与刚体动力学相结合的方法分别对稳态和非稳态两种情况进行了研究,得到了稳态情况的解析解,给出了对非稳态情况进行数值求解的变分公式;对于速度对相关物理量的影响,本文主要讨论了速度对摩擦系数的影响,在滚动接触准静态理论的基础上引进了函数型摩擦系数,建立了函数型摩擦系数的滚动接触准静态精确理论和简化理论,并分别编制了相关的计算程序,还用函数型摩擦系数将简便的Shen-Hedrick-Elkins理论的适用范围扩展到大蠕滑区。

In west, there is not a generally accepted opinion, though there are much theoretical and empirical evidence, there are two theories: Dividend policy is relevant, vintner study dividend policy about dividend signaling by positive research, Jensen and Meckling created agency cost theory, they provide and analysis of the affects of agency conflicts among corporate; tockholders, corporate managers and creditor; they suggest that management stock ownership can reduce agency cost by aligning their interests, with shareholder' s interest.

在西方,人们对股利理论研究起步较早,但至今尚未取得一致的结果。主要形成了两大学术流派:股利无论和股利相关论。林特等人还运用实证分析方法对股利的停息传递效应进行了研究,得出了股利信号传递理论。詹森,迈克林还以委托――代理成本理论为研究框架,通过研究公司股东,管理和债权人三者的利益动机及分配关系,得出了股利分配代理成本理论

The new model, based on the theory of system and cha os, has shown such advantages as integrity, visuality, dynamic and fuzzification , which has interpreted its features and changes, and has compensated the defect s of previous researches.

以系统 理论和混沌理论理论依据建立的皮球理论模型,表现出整体性、直观性、动态性和混沌性的优点,很好地诠释了竞技能力的结构特征和发展变化,弥补了以往研究的缺陷。

Since the design methods applied to the propeller have been developed for many years in China, there are lots of practical design methods such as momentum theory, vortex theory, lift line theory, lift surface theory and so on.

但螺旋桨设计方法发展多年,有许多成熟的设计方法如:动量理论、涡流理论、升力线理论、升力面理论等。

The main contents of this paper is used in college to learn the theory of the mechanics, control theory, mechanical design and computer programming technology, and mechanical theory to simulation, including through the establishment of two parts, kinematics and dynamics of the theoretical models (including Straight leg with the knee model and the model), the use of simulation software to achieve the whole process of Walkabout sports simulation, and to study the mass center position, slope angle and other parameters of walking gait characteristics of the device, and to find the law of passive walking, in order to further less energy-consuming research to lay the foundation of the robot.

本文的主要内容就是运用在大学期间所学到的理论力学、控制理论、机械设计以及计算机编程技术,进行理论推导和力学仿真,通过建立包括运动学和动力学两部分的理论模型的(包括直腿模型和带膝关节模型),利用仿真软件实现行走器整个过程的运动仿真,并研究质心位置、斜面倾角等参数对行走器步态特征的影响,从而找出被动行走的规律,为进一步研究耗能少的机器人奠定基础。这一段翻译成英文拜托别用在线翻译那种很多都是错的

The thesis researches on Friedrich V. Kratochwil's Norm-oriented Constructivism. By systemically and comprehensively dissertating the essential thoughts of the Norm-oriented Constructivism as well as comparing with the thoughts of Onuf's Rule-oriented Constructivism and Wendt's Constructivism, the thesis illuminates the originality, features and significance of the theory. Furthermore, the scope of the theory and the significance of case study can be analyzed.Norm-oriented Constructivism takes norms as the ontology.

本文的研究对象是克拉托赫维尔的规范建构主义理论,通过系统、全面地论述规范建构主义的基本思想并将其理论在建构主义阵营内部与奥鲁夫的规则建构主义和温特建构主义进行比较,指出其理论的创见、特色和意义,继而探讨了规范建构主义理论的适用范围和进行案例研究的意义。

Motibity changed by gear-box in direction and rotate speed is transferred to the blade axis on the right side to drive the blade axis. blade axis'parameter, blade assembling frame and blade assembling means are ascertained. The load and movement of the blade axis are analyzed. And the best blade rotate speed is ascertained. According to the request of no-tillage soil, the appropriate furrow openers are chosen. They are staggered and assembled in two rows .According to the sliding cutting request, the crucial parts of the anti-blocking——the sliding cutting blade, its edge curve is analyzed and designed in principle. The academic curve function is gotten. Combined with working practice and technics request, the blade's figuration parameter is designed, 65Mn is chosen as the material for blades. The working load is analyzed. And the intension of the sliding cutting is analyzed and checked with ANSYS software. At last, the spring rack of the suppress wheal is analyzed in principle. The theory and parameter of designing the spring rack of the suppress wheal. Experiment indicated that the anti-blocking capability of this anti-blocking equipment was excellent.

设计出适合此防堵装置的动力传输方案,动力经变速箱变向变速后从右侧传给刀轴,驱使刀片切割秸秆;确定出了刀轴的参数、刀片的安装结构和安装方法,对刀轴的受力和运动进行了分析,确定出了刀轴最佳转速;根据免耕地的要求,选择恰当的开沟器,并采用双排错位安装的办法,避免了"瓶颈"现象的发生;根据滑切的要求对此防堵装置的关键部件——滑切刀片的刃口曲线进行了理论分析和设计,得到了刀刃的理论曲线方程;结合生产实践及工艺要求,设计出刀片的外形参数,选择65Mn作为刀片的材料;分析和计算了刀片在工作中承受的载荷,运用ANSYS 软件对滑切刀片的强度进行了分析校核;最后对镇压轮的弹簧支架结构进行了理论分析,提出了设计镇压轮弹簧支架的理论和参数依据。

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推荐网络例句

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。

The shamrock is the symbol of Ireland and of St.

三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。