查询词典 method of difference

The results showed that in evaluation of the method by detecting 50 RHD 1227A positive and 50 RHD 1227A negative individuals, the genotyping method displayed a sensitivity of 100% and a specificity of 100%; in evaluation of the method by detecting 33 DEL positive and 89 DEL negative individuals, the sensitivity was 100%, however, there were two serologically negative samples which were confirmed as positive using genotyping method. After re-testing these two samples with serological method and sequence analysis, it was found that original serological method gave false negative results and genotyping method still showed 100% specificity. The minimal target DNA concentration of this genotyping method is 8.13 ng/μl.

结果表明：在50例RHD 1227A阳性和50例RHD 1227A阴性的Rh阴性样本中基因分型方法的灵敏度和特异性都是100％；在33例DEL阳性样本和89例DEL阴性的样本中，基因分型方法的灵敏度为100％，有2例样本血清学结果为阴性而基因分型结果为阳性，重新用血清学方法和序列分析方法复核这2例样本，发现2例都是血清学漏检，因而基因分型方法的特异性是100％。

In this article, a new multigrid method for solving p-Laplacian equations is proposed based on the existing multigrid method: FAS multigrid method and Cascade multigrid method. This method is a combination of Cascade method and a new method named "back" method.

本文主要研究现有的几种求解p-Laplace方程的多重网格方法：FAS多重网格方法和Cascade多重网格法，并在此基础上提出了一种新的求解p-Laplace方程的多重网格方法：Cascade-back方法。

In this paper, based on an optimum difference operator for spatial differential given by Holberg, an optimum difference method of modeling crosswell elastic wavefield is put forward, which adopts the staggered-grid technique and calculates the wavefield at different grid points. When the half length of optimum difference operator is taken as four to six points, the required number of grid points per wavelength equals to three, crosshole elastic wavefield numerical modeling can attain satisfied accuracy.

本文以Holberg提出的一种空间微分的最佳差分算子为基础，采用交错网格技术，提出了一种模拟井间弹性波场的最佳差分法，该方法能在大空间网格点上得到精确的波场值，当最佳差分算子的半长度取4～6个点，每个波长只采3个样点时，井间弹性波场的模拟就可以得到满意的精度，其计算速度比常规有限差分法至少快一个数量级。

In this paper, a high order accuracy difference method is presented for solving unsteady convection diffusion equation by using Implicit Perturbation Finite Difference scheme. Firstly, we use the steady convection diffusion equation, the constant coefficients of this equation are expanded to power series of grid-spacings, then the high-order Perturbation Finite Difference scheme is obtained by determining the coefficients of the power series. Put this scheme on unsteady convection diffusion equations and modified it, the IPFD scheme is constructed.

本文利用摄动差分思想，对定常对流扩散方程中的空间微商系数进行摄动展开，展开幂级数系数通过消去摄动格式修正微分方程的截断误差项求出，由此获得方程的隐式摄动差分格式，将此方法应用于非定常对流扩散方程，并加以修正，得到该方程的修正隐式摄动差分格式。

But, ISN and IST have the obvious difference in five aspects: First, world Zhonglian and the WHO Western Pacific area is the different issue main body and the category; Next ISN and the IST connotation is different, the former is the pure Chinese medicine international standard, the latter is includes the Chinese medicine, Han Yi, the Japanese Chinese side medicine and so on traditional medicine international standard; Has again, the entry total quantity phase difference is obvious, ISN is 6500, IST is 3543 entries; Fourth, the part of speech coverage is different, ISN including more than 1000 traditional Chinese medicines, side medicinal preparation name and translator standard, but IST has not involved this domain; Fifth, still had the difference in part translation principle aspect both, ISN thought that the Pinyin is may use transliterates the method, but IST stipulated explicitly avoids using.

但是，ISN与IST在五方面有着明显区别：首先，世界中联与WHO西太区是不同的发布主体和类别；其次ISN与IST内涵不同，前者是单纯的中医国际标准，后者是包括中医、韩医、日本汉方医学等的传统医学国际标准；再有，词条总量相差明显，ISN为6500条，IST 为3543词条；第四，词类覆盖面不同，ISN包括1000多个中药、方剂名称及其翻译标准，而IST未涉及此领域；第五，在部分翻译原则方面两者尚有分歧，ISN认为汉语拼音是可使用的音译方法，而IST明确规定避免使用。

In the functional mechanism, we should use the technique "use the DNA Microarray to build the gene expression difference chart" to lead to the combination of Traditional Chinese Pharmacy and gene expression difference chart to study. Meanwhile,we can establish a totally new method of screening modern Traditional Chinese Pharmacy based on the gene expression difference chart, it can really make the modernization and internationalization of Traditional Chinese Pharmacy.

在中药作用机制方面，应采用&利用基因芯片建立基因表达差异谱&技术，将中药与基因表达差异谱有机地结合起来进行研究，同时以基因表达差异谱为基础建立一种全新的现代中药筛选方法，使中药真正实现现代化、国际化。

Secondly, more and more researchers have found that the change of ST segment in Electrocardiogram has close relations to the majority of the cardiovascular disease, so electrocardiogram signal pretreatment methods, including 4 point averaging filter, slide averaging filter, first difference, second difference, have been designed; With this foundation, detection method based on the second difference variable threshold to detect R wave in electrocardiogram has been designed, and heart rate has been calculated accurately.

其次，由于越来越多的研究者发现心电图中的 ST 段的变化与大多数心血管疾病都有着紧密的联系，因此，本课题设计了心电信号预处理方法，包括 4 点平均滤波、滑动平均滤波、一阶差分、二阶差分等；在此基础上，设计了基于二阶差分可变阀值检测方法来检测心电波形中的 R 波，计算出了较为准确的心率值。

This thesis contributed to the comprehensive study of the Finite-Difference Time-Domain method and its application to the numerical computation of radiated electromagnetic fields in switched mode power supplies. The work includes mainly three parts: the study on the performance of PML absorbing boundary condition applied to pseudo low frequency electromagnetic problems; the validation of the FDTD method with PML absorbing boundary conditions and the corresponding computer software based on the numerical study of the electromagnetic field of an electric dipole antenna, and its application to the numerical computation of radiated electromagnetic fields in switched mode power supplies; the development of an improved alternating direction implicit finite-difference time-domain method.

在综合前人工作基础上，本文对时域有限差分法及其在开关电源辐射电磁场数值计算中的应用进行了系统的分析和研究，其核心内容包括：伪低频电磁场数值计算中PML吸收边界条件性能的研究；基于基准问题—电偶极子天线三维辐射电磁场，验证了本文构造的基于PML吸收边界条件的三维FDTD法及其计算软件，并应用于高频开关电源辐射电磁场的数值分析；提出了一种改进的交替方向隐格式时域有限差分法。

Learning-theory has an apparent improving effect on students" learning the basic skill of table-tennis. In the comparison between tested group and compared group, an obvious difference appears; it also has a positive effect on students" learning interest, for it can make students keep more interest in learning; using learning-theory is able to improve students learning method of table-tennis. Based on the similar initial learning level of tested group and compared group, and through a one-term teaching experiment, apparent difference of learning method between tested group and compared group arrears, and the learning method of tested group is better than that of compared group.

学习理论对学生学习乒乓球的基本技术有明显的促进作用，在实验组与对照组的比较中表现出显著性差异；对学生的乒乓球学习兴趣也存在积极的影响，可以使学生保持较高的学习兴趣；学习理论应用到乒乓球教学中还可以提高和改善学生的乒乓球学习方法，在实验组与对照组学习方法基线水平无显著性差异的基础上，通过一学期的教学实验发现，实验组与对照组在学习方法上出现显著性差异，实验组的学习方法好于对照组。

Derive recursive least squares method, recursive general least squares method, recursive augmented matrix method, recursive multiple-stage least squares method and recursive maximum likelihood method based on recursive Householder transformation by applying the three real-time solutions of overdetermined linear equation to difference model.

将线性矛盾方程组的三种实时解法应用于差分模型，导出了基于Househol-der变换的递推最小二乘法、递推广义最小二乘法、递推增广矩阵法、递推多级最小二乘法和递推极大似然法。

A backer of an Afghan law that critics say legalizes marital rape has rejected the international outcry as foreign meddling.

饱受批评的一项法律的拥护者说合法化的婚内暴力不会受国际舆论的干涉。

Years ago, a ancient Egyptian fleet went to the Land of punt for seeking a kind of flavor named "myrrh", and aromatic plants which has dense exotic style for the queen Hatshepsut.

3500年前的一个古埃及的舰队到&彭特之地&寻找一种叫没药的香料。