查询词典 method study

First, the Lyapunov functional and variation of constants method are adopted to study the effect that Sigmoid function and the relation of resistance, capacitance and current in Hopfield neural networks have on the stability of networks. The stability criterion constructed by physics parameters is obtained. Thus how the constrained relation of physics parameters affects the stability of Hopfielf neural networks is clear. Based on the study above, the perturbation model of recurrent neural networks is constructed. And the theorems of the existence of solution of perturbation model are presented.

首先，采用Lyapunov泛函法和常数变易法研究Hopfield神经网络中给出的电阻、电容、电流之间的关系以及Sigmoid函数对网络稳定性的影响规律，得出仅由物理模型参数构成的稳定性判据，从而弄清物理模型参数约束关系对Hopfield神经网络稳定性所起的作用，在此基础上，构建了递归神经网络的扰动模型，并通过讨论扰动模型解的存在性问题，给出递归神经网络扰动模型解的存在性定理。

Methods 169 patients underwent subclavian venepuncture in the treatment of bone marrow transplantation.78 of them were designed as study group and 91 patients as control group.In study group,the technique of inserting catheters was improved as comparison as routine method.

将169例锁骨下静脉插管的患者按不同的插管方法进行分组：试验组（78例）和对照组（91例），对照组按常规的插管方法进行插管，试验组在常规的操作方法上进行了改进。

This study aimed to establish a culture method for DSC in mouse uterus. The construction of a co-cultured system of decidual cells will lay a good foundation to study pathological pregnancy.

实验拟建立良好的小鼠子宫蜕膜基质细胞培养方法，为进一步建立蜕膜细胞共培养系统将为研究病理性妊娠打下良好的基础。

Through the study on the crystallization process of aqueous solution of amino acids,dicarboxylic acids and complexes by streaming potential method,that will helps to further study on the crystallization or the precipitation process of amino acid complexes and the electrical characteristics on the solid-liquid interface.

通过流动电位法对水溶液体系中氨基酸、二元羧酸和配合物结晶过程的研究，有助于进一步研究氨基酸配合物结晶和沉淀过程相界面的动电现象。

Any mature theory system or discipline has its study method fitting for its disciplinal feature and content, as the basic means and tool of the theory and discipline study.

任何一个成熟的理论体系或学科都有与其学科性质和学科内容相适应的研究方法，以作为该理论和学科研究的基本手段和工具。

Study on the driving forces of land use/cover temporal-spatial change. On the basis of the systematical study on natural and social-ecomic factors including climate, population, technology and affluence status etc. during the past 50 years in this area, the multivariate statistics simulation models of LUCC were developed for two periods of 1950's-1980's and 1986-2000 respectively. Then, the Thiesson polygon method was used to the spatial allocation of soci-economic factors, thereby the spatial relationship between land use degree change and socieconomic factor variation was detected within GIS. Based on the analysis of the integrative characters in different geographical divisions, the electivity index was employed to describe the possible impacts of the natural landscape structure on spatial differentiation of land use transition. At last, correlation analysis between major roads and the distribution of land use change was made.

分析近50年气候资料和人文因子在不同年代的变化特点，系统地研究了气温和降水等自然因子和人口、农牧业发展、经济状况等人文因子对区域土地利用变化的影响；从时间序列的角度分析了50年代至80年代初和80年代中期至2000年两个时段土地利用／土地覆被变化的驱动因子，在相关分析的基础上，分时段建立了区域土地利用／覆被变化的自然-人文影响统计诊断模型；针对不同经济类型区选择典型县，分析近15年土地利用变化外在人文驱动力的区域相似性和差异性；尝试以THIESSEN多边形方法进行社会经济统计数据的空间化处理，探讨了土地利用程度变化与人文因素变化的空间相关关系；以优先指数模型和土地利用类型转化率与距交通干线距离的相关模型分析了景观自然与人文结构对土地利用空间转化过程的影响。

This dissertation includes two parts. The first part deals with study on gas-phase reactions of metal ions with ethanethiol molecule by using the laser ablation-molecular beam method and density functional calculations. The second part describes experimental and theoretical study on VUV photoionization of some molecules using synchrotron radiation.

本论文分两大部分，第一部分介绍利用激光溅射-分子束技术研究金属离子与乙硫醇的气相反应，并用密度泛函理论研究了反应形成的团簇离子的结构和特性；第二部分介绍一些分子的真空紫外同步辐射光电离，结合量化计算分析了实验结果。

In an other words, we introduce this theory into a study of the pre-Qin period after we have commanded the theory of gender roles. In frondose study course, we also adopt a method that we analyse the whole pre-Qin history from a fore-and-aft history spacetime.

具体来说，就是在对当代社会学中性别角色理论进行较为深入的理解和掌握的前提之下，将其引入到先秦历史的研究中，从而成就本文的研究。

In order to further study the systematics and evolution of the family Hamamelidaceae, the five modern different classification systems of this family published by Harms (1930), Chang Hung-ta (1973,1979), Bogle et al.(1980), Endress (1989) and Li Jianhua (Li, 1997) are compared and discussed by the author based on the principle and method of study plant systematics.

为了进一步研究金缕梅科的系统与进化，作者详细介绍了该科的分类历史及各个分类系统；根据现代植物系统学研究的原理和方法，着重对金缕梅科的5个现代主要分类系统，Harms (1930)，张宏达(1973，1979)， Bogle et al。

To study the transcription expression law of Musclin gene and Lipogenic gene in muscle of the cadmium poisoning mice regulated by Vc. The experiment adopted RT-PCR detection method to study the variety of expression level of mice Musclin gene and Lipogenic gene (FAS, PPARγ, TGH).

为探讨维生素C调控Cd中毒小鼠骨骼肌中Musclin基因及生脂基因的转录表达规律，用RT-PCR方法研究小鼠Musclin基因及生脂基因(FAS、PPARγ、TGH)表达水平的变化。

Metrorrhagia is also gynaecological problems of common diseases.

崩漏是妇科常见病也是疑难症。

WordFTP gives you the convenience and timesaving you need.

wordftp让您的方便和省时您所需要的。