Based on the main tunnel for the water conveyance project of dahuofang reservoir in liaoning province , a simulation - based analysis is made on the tunnel structure with the finite element method ( fem ) ; in which the stress distribution law of the tunnel structure is analyzed and the weak locations concerned are studied , so as to strengthen the stability measures and guarantee the safe and economic construction of the tunneling 摘要应用有限元法对辽宁省大伙房水库输水工程主体隧洞结构进行了仿真分析，从而得到隧洞结构的应力分布规律，研究确定薄弱部位并采取相应的稳定措施，以便保证隧洞施工的安全与经济。
In the end of this paper , we introduce that in the context of weather radar observations the enhancement of thin - line features in meteorological radar reflectivity images is addressed using a wavelet - based analysis . passing the thin line highlighted image into forecast system to complete the feature identification , we can get basis element for thunderstorm forecasting 本文最后介绍了采用小波变换的方法对滨州雷达资料的反射率图像进行处理，得到特征线增强后的图像，将其输入自动预报系统实现特征识别，可为雷暴预报等提供某些初步识别判据。
The paper introduces the development status and base analysis technology of oil and anatomizes the difficulties . then , for this type of problem , a relatively integrated solution is put forward on the basis of assembling the relative methods . and it better solves this kind of practical application problems 论文介绍了油样分析技术的发展现状和基本的分析技术，剖析了问题的难点，针对这类问题，整合了多项相关理论方法，提出了一套较完整的解决方案，较好地解决了这一类实际应用问题。
The behavior and strength of composite columns of rectangular cross - section with doubly symmetric structural steel have been widely examined by domestic and overseas researchers through experimental and theoretical ways . many simplified design equations and computer - based analysis methods have been proposed . however , the analysis and design procedures for composite columns of complex cross sections are still not available 目前国内外研究者主要针对配置对称结构钢的矩形截面组合柱，进行了较大量的试验与理论研究，提出了一些简化设计公式及计算机分析方法，但对复杂截面组合柱尚没有建立起有效的设计与分析方法。
By use of michael e . porter ' s value chain based analysis method , this paper suggests these enterprises identify those links in which they have gained most prominent edges compared to rivals , optimize and integrate such links and work out corresponding countermeasures as per decisive factors influencing their competitive ness , which involves input in these regards : renovation of product and marketing mixes , optimization of its supply chain , implementation of brand - awareness oriented competition strategy , and enhancement of management of employees and customer resources , as well as reinforcement of building of corporate culture of their own , thus to push up their competitiveness as a whole 本文通过对一些指标的量化分析研究有色金属外贸企业竞争力状况，并分析企业所处竞争环境和企业内部的一些影响竞争力的因素，应用迈克尔?波特的价值链分析方法，从企业经济活动的价值链上找出最具优势的环节进行优化、整合，并根据竞争力的决定因素提出相应对策：从产品、市场两个方面进行创新；优化供应链；实施品牌竞争战略；加强员工、客户资源管理及企业的文化建设。从而达到提高有色金属外贸企业竞争力的目的。
Pcr - based analysis method was carried out in the following study . dna amplification by pcr in cgg repeats were performed on 154 people as normal control ( 73 males and 81 females ) and 23 members from four x - linked mental retardation ( xlmr ) families . after electrophoresed on a 6 % - denaturing polyacrylamide gel ( acr : bis = 19 : l ) , genotypes of the objects were determined by analyzing pcr products 本研究采用较以往更为简便有效的pcr技术方法，对随机抽取的154人的正常群体（男性73人、女性sl人）及来自四个智力低下家系的23名成员进行了fmr基因cgg重复序列的扩增，利用变性聚丙烯酸胺凝胶电泳技术对不同等位基因类型进行分离和统计。
Simulation indicates that the par of mc - cdma can be upper bounded 6db by using golay complementary sequences and s - r sequences as spreading sequences , which is much superior to m sequences and hadamard sequences . on the other side of view , compared with the old basic selected mapping method , this thesis proposes some other selected mapping algorithms and compares the performances based analysis and simulation 仿真表明，采用格雷互补序列作为扩频码来降低峰平比，不论是效果还是实用性，都大大优于m序列和hadamard序列；另一方面，本文在基本选择映射算法基础上，提出了几种改进的选择映射算法。
This paper discussed the actuality of our stock market , risk and measures from the problems of inside and outside of the research in nation particularly . it comments and analysis several famous and popular investment theories , at the same time , it points their shortage . it discussed every investment implement particularly , on this base analyses the security investment , recited every investment method and erected right investment ideas 本论文从国内外同类研究存在的问题出发，详细论述了我国股市的现状、存在的风险及其防范对策，并且详细阐述了各种投资工具，在此基础上进行了证券投资分析，评析了当今流行的著名的各种投资理论，指出了他们存在的片面性。
Based on the application of special study frame of the comparative education between nations and the factor - based analysis method of sociology of education and some other research methods such as literature method , description method and comparison method , and guided by the method of logic and history , the dissertation , following the profound analysis to the limitations of the traditional instructional theories , makes a integration and analysis to the main content , the essential characters and the application and effects to the practice about the instructional theory of constructivism 本论文主要运用比较教育学国别专项研究框架和教育社会学的因素分析法以及文献法、描述法、比较法等研究方法，并以逻辑与历史方法相统一的原则为指导，在分析传统教学理论局限性的基础上，对建构主义教学理论的基本内容、基本特征和应用效果等进行了统整与分析，特别是站在辩证唯物主义立场，对该理论进行了比较全面、客观而系统的评析。
Using the idea of multiscale analysis and by combining the model - based analysis method for dynamic systems with the multiscale signal transformation method , we put forward a new algorithm of multiscale distributed information fusion estimation . for multi - model dynamic systems having different description for target state at different scales , at the finest scale we can obtain the optimal fusion estimates based on global information , which give a primary solution to the information fusion estimation of multiscale dynamic systems . this work enriches and develops the information fusion theory 利用多尺度分析的思想，将基于模型的动态系统分析方法与基于统计特性的多尺度信号变换方法相结合，在不同尺度上拥有对目标状态进行不同描述的多模型动态系统，提出多尺度分布式信息融合估计新算法，在最细尺度上获得目标状态基于全局信息的融合估计值，初步解决了多尺度动态模型信息融合问题，这些工作丰富和发展了信息融合理论
