查询词典 modular matrix

This paper introduces a criterion of linear system stability , which is de rived from the relationship between matrix trace and matrix characteristic value and the analysis of companion matrix .

通过矩阵迹和特征值的关系，以及对友矩阵特性的分析，本文导出一个线性系统稳定性的算法，它简单实用，收敛快，准确度高。

Preparation of quasi-interpenetrating network/functionalized gold nanoparticle composite matrix and its performance for DNA sequencingA new matrix additive,PDMA-functionalized gold nanoparticle, was prepared by "grafting-to" approach to avoid GNP aggregation at high concentration of salt in buffer solution,and then incorporated into quasi-IPN composed of LPA(3.3 MDa) and PDMA to form novel polymer/metal composite sieving matrix(quasi-IPN/GNP-PDMA) for DNA sequencing by CE.

准互穿聚合物网络/官能化的金纳米粒子复合介质的制备及其用于DNA测序性能的研究为了解决GNPs在高盐浓度下易附聚的问题，由&grafting-to&法制备了一种新型介质添加剂，即PDMA官能化的GNPs，并将其加入到由LPA(3.3 MDa)和PDMA所组成的quasi-IPN中得到了用于毛细管电泳DNA测序的聚合物/金属复合筛分介质(quasi-IPN/GNP-PDMA)。

The results show that: processing aids which mainly consist of unsaturated aromatic hydrocarbon and aliphatic hydrocarbon resin are able to improve the dispersion of the wood flour in PVC matrix, and amend the interfacial compatibilities between PVC matrix and wood flour, and enhance the mechanical and processing properties of PVC/ wood flour composites; Processing aids which mainly consist of calcium soap and saturated fatty acid amide mixture, as well as fatty alcohol and fatty acid ester mixture, are also able to improve the dispersion of the wood flour in PVC matrix and enhance the processing property of the composites, but when the use amount is big, they have adverse effects on mechanical properties of the composites.

结果表明，以不饱和芳香族碳氢化合物、脂肪烃树脂为主要组分的加工助剂，能够提高木粉在PVC 基体中的分散性，改善木粉与PVC 的相容性，从而明显提高PVC木塑材料的力学性能和加工性能；以钙皂和饱和脂肪酸酰胺混合物、脂肪醇和脂肪酸酯的混合物为主要组分的加工助剂，对木粉的分散性和复合材料的加工性能有一定的改善，但其用量较大时对复合材料的力学性能有不利影响。

Ratio of 0.3-3. The matrix is oxide with a certain electric conductivity, and has such advantages as high-voltage cathode luminescence efficiency, high stability, and high anti-aging performance when compared with traditional insulating oxide matrix, semiconductor sulfide or oxysulfide matrix.

所选的基质材料具有一定的导电性能且为氧化物基质材料，与传统的绝缘体氧化物和半导体硫化物或硫氧化物基质相比具有良好的低压阴极射线发光效率，稳定性及抗衰老能力。

In this project, the selection criteria of matrix and reinforcement for obtaining composites with high strength and toughness are determined. The as-cast and aged microstructures of composites reinforced with particles of different strength are observed, and their metallurgical conditions and stabilization mechanisms are analyzed. The aging precipitation behaviors and mechanisms are studied. Some characteristics of nano-materials (micro-distortion areas) are found in 150nm- Al2O3p/Al composites and their formation mechanisms are expatiated. The "flexible" restriction to the deformation of the matrix by low strength AlN particle is observed by in-situ TEM and SEM techniques, and the mechanisms of its resist on cracks propagation and its contribution to composite strength are revealed. The high temperature deformation behaviors of Al2O3p/Al composites are studied. A rare-earth coating is established on sub-micron Al2O3 particles, leading to an improvement in wettability between coated Al2O3 and liquid aluminum and a decrease in infiltration pressure. The strength and ductility of coated particles reinforced composite are also increased. The interfacial characteristics, bonding structures and their formation mechanisms are studied, and the crystal orientation relationships between reinforcement particles and aluminum matrix are investigated. Finally a lighter composite with better balance of strength and damping properties is reinforced with hollow ceramic microballoons of ultra-lower strength.

本项目发现了获得高强度和高韧性复合材料的基体、增强体选择依据；观察了各种强度质点增强复合材料的铸态和时效态微观组织，分析其微观结构形成的金属学条件及稳定性机理，研究了其时效析出规律和时效机制，发现了150nmAl2O3颗粒增强铝基复合材料基体中的纳米材料特征，并解释了其形成机理；利用TEM和SEM动态拉伸技术发现了低强度质点AlN颗粒对变形协调的&柔性强化&机制，揭示了其对裂纹扩展的阻碍作用和对复合材料高强度的贡献；研究了中强度质点的Al2O3颗粒增强铝基复合材料的高温变形行为，并对其进行了稀土界面层设计与制备，改善了颗粒与铝合金之间的界面润湿性，降低了复合材料铸造渗透压力，提高了复合材料的强、韧性；研究了多种复合材料界面结构及形成机理，确定了增强体与基体之间的界面结合机制，分析了复合材料界面处的晶体学位向关系；最后制备了含微孔的中空型陶瓷颗粒增强的特种复合材料，得到了强度和阻尼综合性能较好的轻质复合材料。

Makes the decency coal, the pearlite and the vermiculite carries on between the root nodulebacteria and the alfalfa variety match as the matrix, alfalfas nitrogen fixation effect and thegrowing trend is higher than other two kind of matrix, the decency coal may first take the highlyeffective strain screens matrix.

以风化煤为基质进行根瘤菌与苜蓿品种之间的亲和性的匹配试验中，苜蓿的固氮效果和长势均高于珍珠岩和蛭石这两种基质。因此，风化煤可优先作为高效菌株筛选的基质。

So, this thesis studied the intermediary banking business based on the background of the development of ICBC. Through using plenty of investigation combining much detailed data adopting the qualitative analysis and the quantitative analysis.using some knowledge of manage, we analyzed the general environment and by using Bauds five power model we thoroughly analyzed and forecasted the industry environment that influence the intermediary banking business development. Last we evaluated the external environment by using the exterior factor evaluation matrix; in the same way we evaluated the internal environment by using he interior factor evaluation matrix and BCG matrix drawing.

因此，本文以中国工商银行中间业务发展为背景，在充分调查研究的基础上，结合大量详实的数据，采用定性分析与定量分析相结合的方式，结合管理学的相关理论，分析了中间业务发展所面临的一般环境，运用波特的五种力量模型对工商银行中间业务发展所面临的行业环境进行了详细的分析和预测，并运用外部因素评价矩阵对外部环境进行了评价；同样地，运用BCG矩阵图和内部因素评价矩阵对内部环境因素进行了评价。

On the termination date, the cultured explants were all examined by Western blot, HE and transmission electron microscope. Our results showed that after 12-days in culture, the cultivation treated with AS-ODN reduced the synthesis of AMBN and had a deformed dental cusp with thinner enamel matrix. Ultrastructure analyses showed that there was hardly any cisternae of the rough endoplasmic reticulum in the ameloblasts at the tip of the cusp of AS-ODN treatedexplants. However, on average the enamel matrix was thinner compared with that in the control group. Furthermore, the collagen fibers in extracellular matrix were found disorganized. These findings seemed to provide a direct experimental evidence that tended to indicate that the arrested AMBN translation in cultured tooth germs might result in the delay of the tooth development.

经用Western蛋白印迹检测表明，所设计的反义核酸对AMBN InRNA具有良好的封闭效果并成功阻断了牙胚对AMBN的表达；在缺乏AMBN情况下，与对照组相比，实验组牙胚在体外可以继续生长发育至钟状晚期，出现成釉细胞和成牙本质细胞的分化，成釉细胞可以分化成为分泌期型成釉细胞，胞浆中缺少合成蛋白质所必需的粗面内质网和高尔基氏体，缺乏溶酶体，表明对蛋白合成和脚的能力降低；实验组牙胚有牙尖形成和基质分泌，但牙尖形态异常，基质形成减少，牙尖周围基质最厚处为O.6卜m，明显薄于对照组的5.spin，基质中胶原纤维粗细不等，排列稀疏， 3 第四军医大学硕士学位论文未见钙化现象，充分证明了AMBN在牙胚发育中参与釉质基质形成和矿化过程，影响胶原纤维和牙本质基质的合成，促进成釉细胞对蛋白质的合成和釉质基质蛋白降解。

Therefore,a fast algorithm of NMF is presented.By some algebra formulation,the matrix to be factorized is changed into a low-dimension matrix which is a diagonal matrix whose dimension is related to the number of samples.Moreover the feature extraction for one sample only needs to calculate the inner product.

该算法通过代数变换，把对原高维矩阵的非负分解转换成非负的低维矩阵的非负分解，其求解过程只需要对一个阶数等于样本数的对角矩阵进行非负矩阵分解，同时提取某样本特征时只需要计算该样本与所有训练样本的内积。

Although clad diamond prevent iron family elements from eroding diamond and improve the strength between matrix and diamond, there still are many problems in applying Fe-base formulae. After the adding amount of reinforced elements is determined, the effect of the basic elements of matrix on its comprehensive performance is studied. The results show that while wc content is 15%. Fe/Ni 1: 1, 663-Cu etc 50%, Sintering temperature 920℃, temperature kept time 1. 5 mintues, matrix comprehensive preformance is best.

尽管金刚石表面镀膜隔绝了铁族元素对金刚石的侵蚀和提高了胎体对金刚石的粘结强度，但以Fe代Co还存在胎体的综合机械性能等问题，本文试着从材料学的强化理论出发确定了微量元素的添加量之后，用正交试验设计方法研究了胎体的基本组元WC、Fe/Ni、663—Cu的加入量及烧结工艺对胎体综合机械性能的影响，得出在WC15%，Fe/Ni1：1，663—Cu等其它为50%，烧结温度920℃，保温时间为1.5分时胎体的综合机械性能最优。

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。