查询词典 group method

Lastly we made a comparison between variational method and finite element method on the lateral loaded behaviour of barrette pile group, and also proved variational method is a feasible and efficiency method.

论文在最后一章采用有限单元法和变分法对壁板桩水平承载特性进行了对比验证，证实了应用变分法分析壁板桩承载特性是一种可行和有效的研究方法。

PSO is a population-based optimization algorithm, which mimics the social behavior of animals in a flock. It makes use of individual and group memory to update each particle position allowing global and local search optimization. The objective function considered was the total weight of the structure subjected to stresses, displacements and forces constraints. The effects of the parameters were investigated as well and such combination of tuning parameters promote a better global search behavior avoiding premature convergence while rapidly converging to the optimal solution. Results showed the effectiveness of the proposed method by comparing with ANSYS Design Optimization Tool (zero-order method). The PSO with the tuning parameters makes it an ideal method for offshore wind turbines foundations optimization tasks.(2) A reliability analysis method for pile foundation bearing axial loads based PSOThe performance function of pile foundation's axially bearing capacity sometimes is nonlinear and complex, on the basis of geometric meaning of structural reliability index, an optimum model with PSO for structural reliability analysis under arbitrary random variables was established, The PSO algorithm is very efficient to solve global optimization problemsIts use in structural reliability field presents not only the advantage of its facility of implementation, but also the possibility to obtain the design point and the failure probability with a good accuracy. In addition, PSO is a zero order algorithm, for no derivative is necessary for its implementation.

本文的研究针对桩式海上风机基础结构的特点，在国内外有关研究成果的基础上对海上风机基础结构优化设计理论和可靠度方法一些相关问题进行了较为深入的研究，具体做了以下几个方面的工作：(1)基于粒子群优化的桩式海上风机基础确定性优化设计方法桩式海上风机基础的优化设计是一个复杂的、非线性约束的优化问题，针对传统的基于梯度信息的优化方法在处理非线性问题中易陷入局部最优解的问题，本文将一种耦合惩罚函数的PSO算法引入到海上风机基础结构概念设计中，PSO算法是从群体动物聚集觅食这一活动中受到启发而发展的，该算法利用个体和群体的信息共享不断改进自身的位置从而进行局部和全局最优搜索，本文中以桩和三脚架连接段直径及壁厚为设计变量，以基础总重量作为优化的目标函数，在给定的约束条件下建立了三脚架基础优化数学模型，另外本文还研究了PSO参数变化对结果的影响，协调的参数组合可以避免陷入早熟收敛而能够快速的获得全局的最优解，通过与ANSYS优化模块的计算结果比较验证了该方法的有效性，本方法为海上风机基础的确定性设计提供了一条有效的途径。

The main work and innovation1 In general , a image compression method has different effect to different image . Some are fit for image which has much high frequency . Some are fit for image which has much low frequency .This paper analysis the applicability of fractal algorithm . In this dissertation , an improved algorithum is given . The basic algorithum without eight change and the joint use of quantitative coding , The compression ratio and PSNR can be adjusted , and it can get more quickly speed of coding .2 To a group of exact fractal code , the decoding image can be any resolution .With this characteristic ,choose the proper domain block and range block,this paper get an algorithum which can get higher decoding PSNR and speed than the basic fractal algorithum.3 Give a new method to calculate the scale factor . The calculation of basic algorithum is complex and enormous . The factor of scale is an important variable of the basic algorithm. Now there are two methods to calculate the factor of scale .A new method was given to calculate the factor of scale. The calculation load and complexity are reduced by the new method. Compared with the basic algorithm , the method can reduce coding time.4 The basic fractal algorithum is based on the Collage theorem and contraction mapping theorem . A mathematic model based on basic fractal algorithum is given .

本文的主要工作及创新点主要包括以下几点：1一般情况下，一种图像压缩的方法对不同特点的图像，压缩效果会有所不同，本文利用分形压缩编码对不同特点的图像进行编码，分析了分形编码对不同图像的编码适用性，利用去掉8种变换的分形编码算法与简单的均匀量化编码方案相结合，得到了一种可以调节压缩比与解码质量的分形编码方案，该提高编码速度6倍以上。2分形编码的特点之一是分形解码的分辨率无关性，即对于一组分形编码可以将其解码到任意分辨率下，本文利用分形编码的这一特点，结合不同的量化编码方案，选择合适的定义域块与值域块及适当的编解码分辨率，得到了一种提高解码质量，编码速度提高12倍以上的加速算法。3比例因子是基本分形算法中的一个重要变量，目前有两种计算比例因子的方法，文中给出了一种新的求比例因子的方法，该方法简化了求比例因子的计算，从整体上减小了基本分形算法的计算量，简化了算法4分形压缩的数学基础是不动点定理与拼贴定理，本文根据基本的自动分形编码方法，建立数学模型对其进行推导，得到了用普通数学的极限理论解释分形编码的数学表达式，从而对由基本分形编码得到的解码图像中的像素点的值给出了确定的表达式。

Ha, I hear somebody to scold me, I also know, this method is the person knows, and fabulous group of hair can be punished by Baidu, everybody is in certainly shake one's head say this method true rubbish, but I still should continue to say, because I am done with this method really, and I was not punished by Baidu, when I use this method, be 7 years will divide in September, and my station is punished by Baidu, be in 8 years in January, I just am punished after Baidu spends a few months impossibly, of course, I do not know what condition now, dare not speak carelessly so, I announce what how I do at that time to everybody to look only, have those who be willing to do is OK go trying, recreant, content need not be used below looked, the method that waits for me to write the 4th part to introduce more powerful get sth done once and for ever looks again.

哈哈，我听到有人骂我了，我也知道，这个方法是人都知道，而且传说群发会被百度惩罚的，大家一定都在摇头说"这个方法真垃圾"，但我还是要继续说下去，因为我确实是用这个方法做的，而且我没有被百度惩罚，我用这个方法的时候是07年的9月分，而我的站被百度惩罚，是在08年的1月，百度不可能过几个月以后才惩罚我吧，当然了，现在什么情况我不知道，所以不敢乱说，我只把我当时如何做的公布给大家看，有愿意做的可以去试试，胆小的，下面内容可以不用看了，等我写第四部分介绍更强大的一劳永逸的方法再来看吧。

All synthetic methods of the μ-oxo-bismetallo- tetraphenylporphyrins are comprehensively discussed, involving the two-step method, the chromatographic column method, the one-step method, the auto-oxidation method and the one-pot method developed by our group.

重点介绍了μ-氧代四苯基双核金属卟啉的合成方法，即两步合成法、柱色谱分离法、一步合成法、自氧化法以及本课题组最新开发的一锅法。其中一步合成法和自氧化法由于具有适用范围广、收率高等优点，将成为μ-氧代四苯基双核金属卟啉的主要合成方法。

This paper puts forward a new method of group decision mak-ing:democracy method of group decision making.

本文提出了一种新的群体决策方法：群体决策民主方法。

Objective:to primarily find out the effect about luteolin rivalizing ototoxicity of gentamicin.methods: in this experimental study,gentamicin group was compared to the group of gentamicin with different dose of luteolin (10 mg,20 mg).the changes in hearing and vestibule function were discovered by measuring the threshold of abr and the frequency of eng.the method of cochlear preparation stained with sdh was used to observe morphological changes in cochleas.results: the auditory examination results showed that the thresholds of the group of gentamicin with different dose of luteolin were higher than the one of the gentamicin group,and the difference was significant in statistics.the morphology analysis result was consistent with auditory examination.

目的：初步了解木樨草素对庆大霉素耳毒性的影响。方法：设庆大霉素组与庆大霉素加不同剂量木樨草素（10 mg、20 mg）两组，并进行组间比较，观察听性脑干反应阈值、眼震电图的频率，了解其听功能及前庭功能的变化。结合耳蜗基底膜铺片琥珀酸脱氢酶染色方法观察耳蜗形态学变化。结果：听功能检查结果显示，庆大霉素加不同剂量木樨草素组的abr阈值明显低于庆大霉素组，经统计学处理，差异有显著性。形态学检查结果与听功能检查结果一致。

In the process, group A adopted strength training method similar to the characteristics of short-running muscle working , and group B adopted the traditional strength training method which is mainly to carry barbell.

训练中实验组采用与短跑肌肉工作特点相似的力量训练手段，对照组采用传统的以杠铃负重为主的力量训练手段。

The octane number of 5 substances were predicted using the new methods.The results show that the second level group contribution method exhibits significant improvements in accuracy and should be used for estimating the octane number of branched and ring hydrocarbons.In cases of simple straight chain bydrocarbons, however,the first level group contribution method should be used.

用新方法对未参加回归的五种物质的辛烷值进行了预测，结果表明对于含有支链和环的烃应采用第二水平基团法估算其辛烷值，对简单的直链烃采用第一水平基团法估算其辛烷值。

Method］thirty male sd rats with body weight of 300-330g were randomly divided into 3 groups: 1.5% isoflurane group,chloral hydrate group and sham operation group, ten in each group.

［目的］探讨吸入异氟烷的大鼠急性脊髓损伤后血清和肺泡灌洗液中p物质含量的改变与神经源性肺水肿的关系。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。