查询词典 methods

With the continuous development and thorough of science and technology,and reflected on science and technology by people continued to be deepen,scientific research is played an important role in scientific research,such as experimental methods, induction, mathematical methods,the limitations of traditional scientific methods have been unprecedented criticism, revealed serious limitations and shortcomings.

讨论科学方法的不足和局限性，并不是要表明科学方法在科学研究中没有任何地位与作用，只是表明科学方法不是完美无缺的，它需要其它方法的补充。比较自由、灵活的艺术方法不仅能随着科学技术的不断发展以及人们对科学技术反思的不断深入，科学方法的局限性也日益暴露出来。

Some methods for dealing with the stability problem has presented and these methods include: Lyapunov function, differential inequality, matrix norm and measure, Razumikhin theorem method etc. The results of stability for these systems are derived by using these methods. This paper may be summarized as follows.

本文考察了区间Lurie型控制系统与不确定时滞系统的稳定性问题，给出了判定系统稳定的一些处理方法，这些方法包括：Lyapunov函数法、微分不等式法、矩阵范数与测度法、Razumikhin定理等方法，并且应用这些方法得到了系统稳定的判别条件。

Currently, a rich variety of evolutionary tree reconstruction methods have been developed, which fall into three categories, distance based methods, maximum parsimony methods and approaches applying the maximum likelihood principle.

一个可靠的进化树推断不仅有助于了解生物的进化历史和进化机制，而且对生物医药学、计算分子生物学其他分支的研究具有重要意义。

This article, through summarizing the progresses in the evapotranspiration (ET0) methods research, analyzes representative ET0 computation methods emphasized on three periods of the world: modificative Penman, Penman-Monteith and standard ASCE-PM. We take 20th century 90's last stages and 21th century initial period's world newest 19 experimental achievements with lysimeter's actual value rating ET0 value as the foundations, analyzing general usage of the ET0 computational method regarding the different climatic conditions. Although the effect of PM method application is desirable in many areas, many local effects are still unsatisfactory; the method MP and so on are more suitable in part of areas; the PM and MP method are not popular, the special attention must be paid to the standard ASCE-PM method. In brief, these kinds of half theory (semi-empirical) methods only suit in certain areas.

通过对ET0计算公式研究进展的总结，分析了在世界上三个时期比较有代表性的计算蒸发腾发量(ET0)的主要公式：修正Penman公式、Penman-Monteith公式及标准ASCE-PM公式；以20世纪90年代末期和21世纪初期世界上最新的19个用Lysimeter实验值率定ET0计算值的实验成果为基础，对于不同气候条件下ET0计算方法的普适性分析评估认为：虽PM公式应用效果较好的地区较多，但也有不少地区效果欠佳，MP等公式在一部分地区较好，PM与MP公式并非普适性的，要特别关注标准ASCE-PM公式，总之，这类半理论公式均有一定的地区性。

Finally, take a Mount Taishan 310MW unit for example, to improve the system of magnetism extinguishing , and summarize the methods which coordinately used with non-ohmic resistor parameter, and these methods can offer important references to the skillful people who need these methods to improve the magnetism extinguishing devices to engines in the future.

最后，以秦山一310MW机组为例，改进其灭磁系统，总结出与其配合使用的非线性电阻参数的计算方法，为今后需用此方法对电机进行灭磁装置改进的技术人员提供了重要参考。

By adapting the existed numerical methods for ordinary and delay differential equations, and matching certain suitable numerical quadrature formulas, Rosenbrock methods are constructed for delay integro-differential equations, the stability criteria of the methods are derived.

通过改造现有常及离散型延迟微分方程的数值方法，并匹配以适当数值求积公式，构造了求解时滞积分微分方程的Rosenbrock方法，导出了其稳定性准则。

Topics covered include: density estimation (incorporating such topics as kernel density estimates, nearest neighbor estimates, variable kernel methods, orthogonal series estimates, maximum penalized likelihood estimates, bandwidth choice), nonparametric regression (incorporating kernel methods, spline methods, penalized likelihood, bandwidth choice, generalized additive models), and bootstrapping.

非参数建模专题：非参数建模专题：基于计算机的非参数统计方法论。包括：密度估计(如：核密度估计，最近邻估计，可变核方法，正交序列估计，最大补偿似然估计法，带宽选择)非参数回归(如：，核方法，样条方法，补偿似然估计，带宽选择，广义可加模型，)和 bootstrapping 方法。

The study focuses on "value diversity", and explores it step by step with a route of "Review -Rethink and Criticism -Construction and Transcendence -Application"From a historical perspective, the study reviews and summarizes western educational evaluation theories and technology development, describes evaluation methods of so-called first three generations evaluation methods, and analyzes historical critique of them, including their failure to accommodate value-pluralism, a tendency towards managerialism, and the overcommitment to the scientific paradigm of inquiry; and then further points out that the fourth generation evaluation methods can be introduced for their effective response to problems of value-pluralism. The study focuses on the characteristics and ideology of the fourth generation evaluation theory; based on which, the research work investigates the social and cultural foundations of education evaluation theory and technology formation development from the dimension of the evolution of values foundation, the impact of social ideology and methodology conversion.

研究从历史的视角回顾、梳理了西方教育评价理论与技术的发展，对称之为前三代评价的方法进行了描述，并分析了历史上对这些早期评价方法的批判，包括对价值多元化的排斥问题、管理主义倾向、对调查的科学范式的过度推崇等；进而指出，第四代评价方法能够有效回应价值多元化问题而被引入，论文重点探讨了第四代评价理论的思想及特点；在此基础上，从价值基础的演变、社会思潮的影响和方法论的转换等维度考察了教育评价理论与技术形成发展的社会文化基础。

We design the parallel methods of Krylov Subspace Methods and the PPAT-precontioned Krylov Subspace Methods, implement them on YH-3 supercomputer, analyze their scalabilities on YH-3 supercomputer.

我们设计了Krylov子空间方法以及PPAT预条件Krylov子空间方法的并行算法，在YH-3上进行了性能测试，并分析了它们在YH-3上的可扩展性。

First it concludes elementary methods for product modeling such as feature recognition, feature-based design and feature mapping. Then it probes into the mechanism of constraint-based feature parametric modeling, representation of feature parametric model and methods for solving constraint in details. At the end it proposes a feature-based modeling system that makes good use of resources and synthesizes many feature modeling methods, and analyses the development of prototype system oriented to actual application.

首先全面归纳了基本的基于特征的产品建模方法，包括特征识别、基于特征设计和特征映射方法，然后对基于约束的特征参数化建模、特征参数化模型的表达和定义方法以及约束求解方法进行了深入研究，最后提出了一个充分利用现有资源，特征识别、基于特征设计和特征映射共用的特征建模系统，并探讨了面向实际应用的原型系统的开发技术。

"Yes, now you can give yourself airs," she said, you have got what you wanted.

"对了，您现在高兴了，"她说道，这是您所期待的。

Then the LORD said to me: Rebel Israel is inwardly more just than traitorous Judah.

上主于是对我说：＂失节的以色列比失信的犹大，更显得正义。