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The proposed method is based on a higher order likelihood-based asymptotic procedure. The merits of the proposed method are numerically compared with the signed log-likelihood ratio statistic and the simple t-test method with respect to their expected lengths, coverage probabilities and type I errors.

我们所利用的方法是以概似函数为基础的高阶近似方法,并且我们利用模拟的方法去跟signed log-likelihood ratio及 simple t-test 两种方法比较所建构出的信赖区间的覆盖机率和平均宽度以及所对应检定的型I错误来检视我们所利用方法的优劣。

In this paper, I establish a set of updating the basic land-use map technology and flow after I go deep into studying the methods of updating the basic land-use map based on 3S technology. It is very important point that I bring forward some methods of change information automatic detected founding on land-use map unit, cross correlation analysis with multispectral image and object-oriented classification aiming at difference data and difficult identifying change information problems.

本文在深入研究了基于3S技术更新土地利用图件的方法基础上,从实用化的角度出发,建立了一套利用3S技术更新土地利用基础图件的技术流程与方法,并针对不同的数据情况和变化信息自动提取等问题提出了基于土地利用图斑单元的知识库变化信息自动发现方法、多波段遥感影像交叉相关分析变化识别方法及面向对象的遥感影像分类变化检测方法。

Based on the data of aerosol chemical compositions obtained at WMO GAW (World Meteorological Organization Global Atmospheric Watch) station in eastern China-Lin'An regional background air pollution monitoring station, two methods (referred as Malm method and Stelson method) that were described by Malm (Malm et al.,1994) and Stelson (Stelson and Seinfeld, 1981) were used to study the mass closure of sampled aerosols.

本文通过在WMO GAW 区域大气本底污染监测站-临安大气本底污染监测站采集的气溶胶样品的化学成分的分析结果,分别用Malm(1994)和Stelson(1981)提出的方法(分别记为Malm方法和Stelson方法)重建气溶胶质量浓度,并与称重获得的质量浓度进行对比,发现虽然Stelson和Malm方法所考虑的物质组成及所使用的化学成分个数并不相同,其计算结果略有差异,但总的来说两种方法都能较好的反映绝大部分的气溶胶质量,在实际应用中可以根据所分析的化学成分数据情况和研究的目的采用不同的质量重建方法。

We would like to make our students to know and master the basic way of the chemistry experiments, the use of the normal apparatus of inorganic and analytical chemistry, the character of the normal inorganic compounds and

课程的目标是使学生了解和掌握化学实验的基本方法和常见的无机与分析化学仪器的使用,了解和掌握一般无机化合物的性质以及分离提纯的方法;熟悉常见的无机化合物的制备方法,掌握测定有关重要化学常数的方法和原理;熟悉滴定分析的基本操作,掌握定量测定无机化合物的主要化学滴定的方法和原理,从而培养学生能用化学观点与方法来观察分析和解决实际问题的能力。

The full text is total to is divided into four chapter:Chapter 1, the relevant concept of the listed company results evaluation, that is the other the theories foundation of the chapter, and do the foul to the textual evaluation angle settle;Chapter 2, the results evaluation index sign and the index sign system, the original index sign system of comprehensive evaluation of information formation that that choice listed company publish, and introduced the in common use index sign to sieve to endow with the method of the power with index sign;Chapter 3, the comprehensive results evaluation method, this is the foundation that carries on chapter 4, that carry on theories in chapter 2 fusion, became two kinds of comprehensive evaluation methods, and carried on the des cription to the operation step of a method;Chapter 4, the substantial evidence is analytical, this is the point of the full text, the collections combines the data of tidy up the listed company, making use of two kinds of methods within chapter 3s respectively, carry on synthesize to rank, and get two kinds of methods to rank the result to look like the consistent conclusion.

全文共分四章:第一章,上市公司绩效评价的有关概念,该章是其它章节的理论基础,并对本文的评价角度做出界定;第二章,绩效评价指标及指标体系,该章选择上市公司披露的信息形成综合评价的原始指标体系,并介绍了常用的指标筛选和指标赋权的方法;第三章,综合绩效评价方法,这是进行第四章的基础,该章将第二章中的理论进行融合,形成了两种综合评价方法,并对每种方法的操作步骤进行了描述;第四章,实证分析,这是全文的重点,收集并整理上市公司的数据资料,分别利用第三章中的两种方法,进行综合排名,并得到两种方法排名结果近似一致的结论。

Drug sensitive test and three-dimensional test220 strains of Pa were isolated from hospitalized patients between 2003 and 2007. K-B method was used to tested the susceptibility of 10 different antibiotics. IRPa was screened by testing the minimal inhibitory concentration of imipemem by using agar diluiion method.The susceptibility of these IRPa to the antibiotics was analysised. Three-dimensional test was used to identify the different kinds of beta lactamases from 220 strains of Pa.2.Carbarpenems hydrolytic enzyme genes and oprD2 gene were detectedamong the selected IRPa strains, PCR method was performed to detect carbapenemase genes which included GES、KPC、SPM、VIM、IMP、GIM gene and the oprD2 gene;Multiplex PCR were used to detect OXA genes and plasmid-mediated AmpC beta lactamase genes; The expression of the chromosomal AmpC beta lactamases and oprD2 genes in IRPa strains were analyzed by Real-time PCR.3.Identification and characterization of integronsIntegrase gene was detected by PCR, and the classification of integrons was performed by using restriction fragment length polymorphism.PCR was performed to detect the qacE△1-sull gene,and the gene cassetes which are located at variable region of integrons in the strains were detected to be positive.

方法1、药敏实验和三维实验收集2003~2007年临床分离的220株Pa,对这些菌株采用K-B法测定10种临床常用抗生素的药敏情况,同时采用琼脂稀释法检测亚胺培南的最低抑菌浓度(Minimal inhibitory concentration,MIC),筛选出对亚胺培南耐药的铜绿假单胞菌,并分析其对其它抗生素的药物敏感率;采用三维实验的方法分析220株Pa产β内酰胺酶的类型。2、碳青霉烯类水解酶和oprD2蛋白的检测针对鉴定的IRPa菌株,采用普通PCR方法检测具有碳青霉烯水解作用的β内酰胺酶耐药基因(GES、KPC、SPM、VIM、IMP、GIM基因)和oprD2基因,采用多重PCR的方法检测OXA型基因和质粒携带的AmpC酶基因,用荧光定量RT-PCR方法检测oprD2蛋白基因表达情况;同时对产AmpC酶的Pa(25株,含IMP耐药和敏感株)用RT-PCR方法检测AmpC酶基因的表达量情况。3。

In order to know irradiant dynamic process we must have excitation crosssection of electron collision with molecule. Incident electron energy is inintermediate range. At low energy, there are several good methods thatcalculate electron collision with molecule for example Variation, R-matrix.

此时入射电子的能量已经达到中能,在低能范围内的电子与分子散射有许多好的方法如变分法、R-矩阵方法,在高能范围内利用Born近似等方法也能得到满意的结果,在中等能量范围的电子与分子碰撞则没有相应的成熟的方法,使用比较多的是密耦(Closing-Couple)方法,这种方法将相互作用势分为静态势、交换势、极化势,在耦合态的选取上比较自由,可以根据实际的问题及分子的特性选取耦合作用比较强的通道,这样既能保证精度又能减少计算量。

For preparing for the researches of text digital watermarking and advantaging other researchers" development when using the Chinese mathematical expression theory, this paper designs and realizes a development platform of Chinese mathematical expression. It has been proved by experiments that the platform"s function, execution speed and stability can satisfy the requirements of conversion and operation of enormous data.This research found out that the structure information of Chinese have plenty redundant information that can be used by the Chinese mathematical expression for the digital watermarking, the data embedded can possess better robustness. Based on this finding, this paper designs a kind of text digital watermarking method of embedding watermarking by using Chinese structure, and realizes the method by using the Chinese mathematical expression platform.Considering the watermarking embedding algorithms importance to the robustness of the text digital watermarking, this paper makes fully use of the advantage of the Chinese mathematical expression theory to design a kind of layered text method, which has being realized by using the Chinese mathematical expression platform. The layered text method can handle the text as a solid structure, and the embedding data havepreferable robustness.Finally, based on the researches of the text digital watermarking method and the text layered method, this paper integrates the method of making use of the Chinese structure embedding watermarking with the robust algorithm based on text layered, and realizes a brand-new text digital watermarking method. Proved by lots of experiments, this brand-new method has good robustness and better invisibility.

为了为研究工作做准备和方便其他使用汉字数学表达式理论体系的人进行开发,本文基于汉字数学表达式理论设计实现了一个汉字数学表达式平台,实现了Unicode汉字集中的汉字、汉字数学表达式、汉字的Unicode码之间的相互转化、依据汉字数学表达式提取汉字的结构信息、由汉字数学表达式在非中文平台上不依赖字库显示汉字的图像等功能,使用复合文档技术和流压缩技术进行数据的存储,使用对汉字数学表达式进行二叉树拆分来处理汉字数学表达式中包含的信息,使用自定义哈希函数来提高运行速度,实验证明,该平台功能、速度和稳定性完全能满足大量数据的转化和运算要求;通过研究表明汉字的结构信息中存在大量可使用汉字数学表达式理论加以利用的水印加载空间,加载在该空间的数据可以具有较好的鲁棒性,基于此,本文设计了一种利用汉字结构加载水印的文本数字水印方法,并使用汉字数学表达式平台将其实现;由于水印嵌入算法对于文本数字水印的鲁棒性至关重要,本文充分利用汉字数学表达式理论的优点,设计了一种文本分层的方法,并使用汉字数学表达式平台将其实现,使文本成为一个立体的空间,使嵌入在其中的数据具有更好的鲁棒性;最后在基于汉字数学表达式的文本数字水印嵌入方法的研究和基于汉字数学表达式的文本分层方法的研究的基础上,结合利用汉字结构嵌入水印的方法和基于文本分层的抗攻击文本水印嵌入算法实现了一种全新的文本数字水印方法,经实验证明,该方法有良好的鲁棒性和较好的隐蔽性。

On the basement of conventional direct fan-beam reconstruction, this paper gives a newly improved algorithm-"fast filtering-backprojection". This method utilizes the symmetrical circle geometry to sample projection data, and reconstructs image on the Polarcoordinate firstly, then translates this reconstructed image onto the cartesian coordinate system with two interpolating operations so that the computer can show the result image on the VGA screen. This algorithm rebates the calculating backprojection greatly, and shortens a few times of reconstructing time than same kinds of means. With the size of image enlarging, the reconstructing time abates with 2 exponent times. In addition, according to the idea of parallel-beam, we rearrange the fan-beams and reconstruct image using parallel-beam method fastly. The rearranging constraint condition is given here.

本文首先在传统的扇束直接重建方法的基础上,提出了一个改进的快速滤波反投影重建算法,它利用旋转采集投影数据的圆周对称的几何关系,先在极坐标系统内进行图象的重建,然后通过两次内插运算再将图象转换到计算机显示方式下的笛卡尔坐标系中去,该方法将以往的直接重建方法中的反投影时所需的运算大大降低,并将重建时间比同类方法缩短了几倍,而且随着重建图象的尺寸的增大,重建时间以2的指数次方倍相对缩短,并获得了较好质量的重建图象;另外,又根据平行束投影重建图象的思想,对扇形射束进行了重排,然后利用平行束重建图象的方法进行扇束的重建,并推导了&扇束重排重建图象&方法的约束条件。

Coal load in ball tube of pulverizing system is affected by many factors, this paper analyzes these factors and their relations.

由于神经网络技术的发展,神经网络在非线性控制方面显示出强大的优势,同时近年来出现的逆系统方法对于多变量非线性系统的控制指出了一条可算是光明的道路,鉴于以上两项技术的优越性,本文提出对BMPS进行神经网络逆系统控制的方法,首先通过机理分析的方法建立了BMPS的非线性动态数学模型,并依此模型设计了神经网络逆系统控制方案,由于此方案中需要用到球磨机磨筒内负荷的反馈,但是磨内负荷是一个不能直接测量的量,而且其测量方法是多年来人们一直在努力的方向却又一直不能较好地解决,本文提出对其进行神经网络测量的思想和方法,这一方法的仿真试验和现场实测结果均表明其研发造价低廉的优越性和测量较为准确的实用性。

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推荐网络例句

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达,对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲:这种病是最常见的原因查明腹泻病,在世界上。

Gangs fill the daily lives of many of our poorest and most vulnerable citizens with a terror that the court does not give sufficient consideration, often relegating them to the status of prisoners in their own homes.

法院没有充分的考虑到黑社会的猖獗所带来的恐怖,这使得我们最穷、最可怜的市民每天生活在他们的阴影当中,成为在家的囚犯。