查询词典 method study

In this paper, photoelastic coating method and strain-gauging method were used conjointly to study the stress distribution of the column of cross wedge rolling machine. The result of study deepened the understanding of this complicated problem and there is certain reference value on improving the stress distribution of the column.

本文利用光弹性贴片法，辅以电阻应变片法，对楔横轧机机架模型的应力分布规律进行了研究，研究结果深化了对这一复杂问题的认识，得到了一些有价值的结论，对于采用合理设计来改进机架的应力分布也有一定的参考价值。

Under the cases of the linear interconnected systems with all its subsystems are one dimension, a theorem to judge the properties of single loop interactions has been given; the study also indicated that the properties of interactions cann't independent of the properties of subsystems in the multi-loop interaction conditions, and a all field root locus method has been proposed to decide the properties of interactions; a interaction stabilizable theorem has been given, and the efficacy of interactions with respect to the interconnected systems has been configured, Some primary results are reported which are induced by using a method of computer aided test to study block interactions, the stationary feedback efficacy of closed loop interactions have been discussed and a stability guess has been proposed.

本文提出互连系统的合作稳定性概念及其原理，给出了互连系统的本原稳定度、稳定中心、回路关连的级数以及关连的性质等基本定义；并在此基础上对线性互连系统进行关连分析，给出了一系列涉及到关连与互连系统稳定性关系的命题、引理、定理及其证明；其中，在子系统都是一维的线性定常互连系统情况，得出了单回路关连性质判断的定理；并指出在多回路关连条件下，关连的性质不能独立于子系统的性质，以及用全域根轨迹法判断关连性质的方法；给出了关连可稳定理，并对关连对互连系统的影响作用进行了分析。本文还用机辅试验的方法研究块阵关连并给出一些初步结果，本中还探讨了回路关连的静态反馈作用并提出一个判稳猜想。

In chapter 3,we study the Zakharov-Kuznetsov-Modified Equal-Width equation by employing the extended Jacobi elliptic function expansion method and obtain some new solutions of Jacobi elliptic function type of the ZK-MEW equation.;Secondly,using sn-cn method,we study K(m,n,1) equation and obtained some new exact solutions when k=s=3,especially obtained abundand solitary solutions and trigonometric function solutions when m→0 and m→1;In chapter 4,Painleve singular analysis was applied to nonlinear PDE with variable coefficients.

第四章将Painleve奇性分析方法应用到带阻尼项的变系数Burgers方程中，并得到了该类Burgers方程具有Painleve性质的条件，给出了该类Burgers方程的Backlund变换，用所得Backlund变换得到了若干精确孤立波解，包括奇异孤立波解，这些解不等同于行波型孤立波解；用齐次平衡法得到了对数型DBM方程的Backlund变换，并获得了DBM方程的各种孤立波解，包括尖峰孤立波解和奇异尖峰孤立波解。

For the network topology found in a study of the key issues of network topology display of the contents of a summary, from the perspective of the agreement into several of the current network topology display technology research methods, each method on the realization of the mechanism discussed at the same time Each method and the use of the lack of final display of the network topology to the development trend of the future topological study of possible applications direction summarized.

针对网络拓扑研究中发现的关键问题，对网络拓扑展示的研究内容进行了概括，从协议的角度归纳了目前几种网络拓扑展示技术的研究方法，阐述了每种方法的实现机理，同时探讨了每种方法的使用范围和不足，最后探讨了网络拓扑展示的发展趋势，对未来拓扑研究中的可能应用方向作出了总结。

On the basis of gathering data from previous study and researching the stabilization and reinforcing technique of the typical high slope in west approach road, through in-situ tracking investigation and monitoring to the west road, and by way of studying the interaction between slope body and anchoring structure, monitoring data, the result of grey prediction and fuzzy comprehensive assessment, and adopting the idea of integrating prototype investigation and indoor experiment analysis, mechanism analysis and simulation research method, safety factor analysis and interacting relationship study, in-situ monitoring and safety evaluation, and using the theories of engineering geology, geotechnique, rock body mechanic, finite element method and fuzzy mathematics, this paper studies the long-term safety of the typical high slope specially.

本文在收集前人研究资料的基础上，采用原型调研与室内分析相结合、机制分析与模拟研究相结合、安全系数分析与相互作用关系研究相结合、现场监测与安全性评价相结合的思想，通过对鹧鸪山隧道西引道典型高边坡的现场跟踪调研与监测，运用工程地质、岩土工程、岩体力学、有限元理论、灰色系统理论、模糊数学等先进理论和方法，在对西引道典型高边坡的稳定性、整治与加固技术研究的基础上，通过边坡地质体与锚固结构相互作用分析、边坡监测数据分析、边坡变形灰预测分析以及模糊综合评判等途径，重点对治理后的典型高边坡的长期工程安全性进行了系统深入的研究。

In this paper, series of Finite Element Analysis and study on Bus Body Frame are preceded. Based on the research on tire done before, a method of using Finite Element Method to study bus dynamic performance is discussed fundamentally.

本文以客车车身骨架为主要对象，针对某客车全承载式车身进行有限元分析与研究，并结合本课题组前期对轮胎所作的一些研究工作，对采用有限元方法研究整车动态性能作了初步探讨。

On this basis, according to historical data, apply ANN and differential simulation method to get the quantitatively correlative relations between each production and its own influence factors, and introduce the new methods of prediction for dynamic indexes with gas-field development (The combinatorial prediction method based on fuzzy comprehensive evaluation, the method of ANN to select optimally combinatorial prediction models and the ANN prediction method based on genetic algorithm).(2) Base on mathematical programming, combine with quantitative economics and techno-economics, introduce economical indexes to establish production"s distribution optimal model, production"s constitution optimal model and measured production"s constitution optimal model, including multi-objective models and five-years models. Upon this, the optimal project for all gas field and each gas-collected factory can be got. Also, introduce the time value of capitals to improve on these models.(3) Base on the optimal solution theory and algorithm theory for the nonlinear programming problem, introduce the SUMT algorithm and genetic algorithm to study how to solve the models, and on the basis of normal genetic algorithm, make use of auto-adaptively modulating method to improve on normal genetic algorithm; Base on algorithm"s convergence theory and calculation"s complexity theory to analyze seriatim SUMT algorithm"s convergence and genetic algorithms convergence, and compare performance with each other.

在此基础上，利用神经网络方法和微分模拟方法根据历史数据得到各分项产量与其影响因素之间的定量关联关系，并引入气田开发动态指标新的预测方法(基于模糊综合评判的组合预测方法、神经网络优选组合预测模型预测方法以及基于遗传优化的神经网络预测方法)；(2)以数学规划为基础，结合数量经济学和技术经济学，引入经济指标建立产量分配优化模型、产量构成优化模型、措施产量构成优化模型、气田开发多目标规划模型以及五年规划模型，进而获得全气田及各采气厂的最优方案，并引入资金时间价值对五年规划模型进行改进；(3)以非线性规划问题的最优解及算法理论为基础，引入SUMT算法以及遗传算法对模型的求解进行研究，并在原有的遗传算法基础上，引入自适应调整方法对遗传算法进行改进；以算法的收敛性理论和计算复杂性理论为基础，逐一分析SUMT算法以及遗传算法的收敛性，并比较三种算法的优劣性。

In this paper, based on the study of various methods calculating the risk occurrence probability, a new method TAA method was obtained, which was the combination of improved TOPSIS method, AHP method and ANN. This new method was used into the invest risk analysis of 019 project and calculation were carried out on the related invest risk occurrence probability caused by all kinds of risk factors.

本文在对各种风险发生概率计算方法的研究基础上，通过将改进的TOPSIS法、AHP法和神经网络相结合得到一种新的风险发生概率计算方法——TAA方法，并将其应用于019工程的风险分析中，对由各风险因素所引发的019工程风险的发生概率进行了计算。

In this chapter, through the analysis of"the method Elchataym"and"the method tree", the study of the problems in chapter thirteen in Liber Abaci, and the comparison of"the method of Excess and Deficit"in Chinese mathematics, it argues that"the method Elchataym"is not equal to"the method of Excess and Deficit", and statement that"Elchataym"is"Khitan"lacks convincing support.

本论文通过对&Elchataym算法&、&树方法&算理分析、对第十三章所有算题系统研究、以及将&Elchataym算法&、&树方法&和中算之&盈不足术&比较之后认为：&Elchataym算法&不完全等同于&盈不足术&，而且认为&Elchataym&就是&契丹&的音译缺少令人信服的支持。

At first, the wind tunnel test and test data process of this study are introduced in detail. A method to calculate expected extreme values of time series with a long time interval is then proposed with its sub-sections based on the classical Gumbel theory for extreme values and the independence of observed extreme values. At last, the extreme values of the wind pressure coefficients of the present wind tunnel test are calculated with the proposed method and methods used widely at present, such as peak factor method, improved peak factor method and Sadek-Simiu method.

首先 介绍了风洞试验及试验数据处理的基本概况；然后在阐述经典Gumbel极值理论的基础上，根据观察极值的相互独立性推导了短时距下极值分布参数和长时距下极值分布参数的关系式，给出了一种由短时距样本推算长时距下的极值估算方法；最后基于风洞试验数据，将常用极值估算方法(峰值因子法、改进峰值因子法和Sadek-Simiu法)和该方法的计算结果进行了比较。

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。