查询词典 method of difference

A special investigation was made in some of the arithmetic,including image sequence difference method,backdrop method,luminous flux method,etc.

对其中一些算法作了着重的研究，其中包括图像序列差分法、背景差分法、光流法等，进一步的分析了这些算法所存在的优缺点，并对图像序列差分法做了改进。

Some known results are generalized.Second,the global asymptotic stability for a higher order rational difference equation was investigated by using "Subsequence Analysis Method " in Chapter 3,and the "Semi-cycle Analysis Method" is a extension and supplement of "Semi-cycle Analysis Method".

因此，本文第三章应用"子序列分析法"研究了一类高阶的有理差分方程解的全局动力行为，进一步得到了此类高阶有理差分程解得全局渐近稳定的一些充分条件，一些已知的结果被推广。

Furthermore, the metallic glass samples are prepared by vacuum injection method and the rationality of above-mentioned relationships and RBF models is directly verified. It is shown that there are extremum phenomena between the Rc andΔd ,Δe and v respectively. However, the positions of the extremum are different from different alloy systems and the extremum phenomena may be related to the optimum composition region and the optimum additive quantity. More elements in the alloy are in favor of the improvement of the GFA. And as for the high GFA alloy, the atomic percentage, atomic radius difference and atomic electronegativity difference are harmoniously matched.

d、Δe和v与临界冷却速度Rc的关系中都出现极值现象，对于不同的合金体系，极值出现的位置不同；金属玻璃的最优成分范围以及各种添加元素的最佳添加量行为，可能与此极值现象相关；合金中包含的组元数目多有利于提高其玻璃形成能力，玻璃形成能力强的合金，其各个组元的原子百分含量、组元原子半径差及其电负性差之间的搭配是很和谐的；融合建模的合金系之间包含的主要组元数量和种类越相近，所建立的模型的可靠程度越高，其预测结果与实测结果越吻合。

In the process of discretization of the auxiliary function, the traditional central difference formula is replaced by the backward difference formula, and numerical results show the method is of good stability.

在辅助函数的离散过程中用后向差分公式代替传统的中心差分公式，数值结果显示出良好的稳定性。

Tridiagonal block matrix elemination and sweep algorithm is successfully applied to solve the large matrix involved; central difference method is supplemented to Houbolt method to form a time integration method with estimation and correction, to solve the time integration of second order implicit non-linear equation; simplification of system equation by decoupling between the physical coordinates x and y further improves the calculation accuracy and speed.

其中：成功地引入块三对角矩阵追赶法求解上述问题构成的大型矩阵；提出中心差分法+Houbolt法的预估计—校正时间积分法，以解决二阶隐式非线性方程的时间积分问题；系统方程在物理坐标x和y上的"解耦"简化，使计算速度和计算精度得以进一步的提高。

In this paper,the design methods of time difference receiver of passive detection and tracking radar system,based on passive position finding of three station time difference,are presented in detail,and channelization receiver technique and mixer threshold detection method are adopted.

较详细介绍了一种基于三站时差定位体制的无源探测与跟踪雷达系统时差接收机的设计，该方案采用了信道化接收技术和混合门限信号检测方

Appraised the clinical effect of the flavone of rhizome drynania on Senile Osteoporosis, according to the dynamic observation on integrative scores of lumbodorsal pain and lumbodynia,"VAS section grading method" on lumbodynia,"Barthel index rating method" on ADL, detected BMD on anterior-posterior position lumbar2~4 vertebra body and proximate of femur including neck/ward/troch, and determined the index of bone transition including BGP/PINP/ICTP through the radioimmunity method before and after treated half a year, then contrast intragroup and selfgroup. Depending on the standard of curative effect, contrast the difference of curative effect between two groups.

采用随机对照的方法，分为治疗组36例，对照组34例，依据对腰背痛及腰痛综合评分进行动态观察；依据&疼痛VAS线段分级法&对腰背痛（静止痛、翻身痛、久坐痛、起身痛、弯腰痛、步行痛、睡眠痛、叩击痛、压痛）进行量化动态观察；依据&Barthel指数评定法&对老年性骨质疏松症日常生活活动能力进行观察；采用双能X线骨密度仪对腰椎(L2-L4)、股骨近端各部位：股骨颈、股骨三角区、股骨粗隆进行骨密度定量检测；应用放射免疫法对骨转换指标进行测定，骨形成指标：骨钙素、Ⅰ型前胶原氨基端前肽；骨吸收指标：Ⅰ型胶原交联羧基末端肽等，评价骨碎补总黄酮治疗老年性骨质疏松症的临床效果。

ABSTRACT It is because that the excellent acceptors for maize transgenic engineering are insufficient in our country, especially in the southwest mountain areas of china and hereditary variation regularity for the two characters such as efficiency of embryonic callus induction and number of regenerating plant (these two characters were abbreviated to the nduction efficiency and number of regenerating in the following of the paper, respectively), which hint the maize culturing capacity, is not very clear. Therefore, aiming at picking out superior acceptors, we had made systematic researches on the two characters with combing traditional quantitative-character genetic analyzing methods such as single-factor genetic mating design, diallel crossing genetic design, genetic effect analyzing method and the modern molecular locating method such as QTLs'. The main results are followed.(1) 50 superior inbred lines and about 30 crosses in our country, especially in the southwest of China were used for identifying and selecting the superior genotypes in the above two investigated characters under the same culturing condition in 2000 and 2001. There was very significant difference among the genotypes in the both characters. But the two characters were not certainly related. Some genotypes such as 18-599 and 18-599 were very good in them. For some ones such as zong 31, induction was higher than 18-599 and 18-599 in the efficiency, but it was only 1/3 to the later in regenerating number. In some genotypes such as S37, R08, R15, P138, A318, induction efficiency was just about 3% and scarcely any regenerating plants were got. On the whole, hybrids acted better than inbreeds in the both characters.(2) Two kind of inbreeds were selected as parents of the Griffing's method 1. 18-599 and 18-599 and the inbred line zong 31 are one kind because they are not only superior in the characters of maize cross breeding, such as CA, resistance to disease and the important agricultural characters, but also excellent in transformation characters as the induction and regeneration.

针对我国、特别是西南山地所需玉米转基因工程育种优良受体极为匮乏和反应玉米幼胚培养能力的2个主要性状，即玉米幼胚胚性愈伤组织诱导率和胚性愈伤组织绿苗发生数的遗传变异规律十分不清楚的实际情况，本研究从筛选玉米转基因工程所需要的优良受体入手，采用单因素遗传交配设计、双列杂交遗传交配设计、世代基因效应等传统数量性状分析方法，以及现代分子标记定位主效QTL分析方法，对玉米幼胚胚性愈伤组织诱导率和胚性愈伤组织绿苗发生数等2个性状进行了较为系统的分析研究，取得以下主要研究结果：(1)于2000年和2001年通过对我国、特别是西南地区近50份优良自交系和近30个杂交组合，在相同培养条件下，对幼胚培养胚性愈伤组织诱导率和胚性愈伤组织绿苗发生数等2个幼胚培养能力性状进行了筛选与鉴定，发现玉米不同基因型具有完全不同的幼胚培养胚性愈伤组织诱导率和胚性愈伤组织绿苗发生数，但幼胚培养胚性愈伤组织诱导率与胚性愈伤组织绿苗发生数并不具有必然的相关关系，有的基因型，如自交系18-599和18-599在胚性愈伤组织诱导率和愈伤组织绿苗发生数等2个性状都表现相当优异；有的基因型，如自交系综31，仅幼胚培养胚性愈伤组织诱导率性状表现高于19-599和18-599，但在胚性愈伤组织绿苗发生数这一性状则与它们有相当大的差距，仅为19-599和18-599的1/3左右；有的基因型，如S37、R08、R15、P138、A318等玉米自交系不仅幼胚培养胚性愈伤组织诱导率很低，平均仅在3％左右，而且胚性愈伤组织绿苗发生数表现也很差，基本上没有分化成苗。

The inconsistency of judgment matrixes, great difference of relative weights and other problems often arise during screening evaluation index by AHP. To solve these problems, a new AHP method is presented by combining the weight vector rang estimation analytic theory with traditional evaluation index rejecting method. Finally, an example of deciding a evaluation index system for submarine pipeline engineering project is given and the result proves that the method is effective and feasible.

针对用层次分析法进行评价指标筛选过程中经常出现比较矩阵不一致、相对权重值差别较大等问题，将权重向量区间估计分析理论与传统的评价指标剔除方法相结合，提出了一种新的AHP评价指标筛选方法，并以海底管道工程方案评价指标体系的确定为例进行了实际应用，结果表明该方法具有较强的实用性和可操作性。

8 Mol/L. The electrode process and reaction mechanism of ACOP were investigated. The results show that the proton numbers is 2 and electron transfer number n is 2. The method has been used to determine the content of ACOP in tablets with the recovery between 98.2%~105.0% by means of standard addition method. Compare with ultraviolet spectrometry, the method is not remarkable difference.

9949；检测限为8。 0×10-8 mol/L。探讨了ACOP在GCE/Nafion-MWCNTs上的电极过程和反应机理，测得在本体系中参与反应的质子数和电子转移数均为2，对ACOP药片进行了测定，回收率为98.2%~105.0%，与紫外分光光度法比较，无显著差异。

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。