查询词典 paper matrix

Five ways on comparing covariance matrix are applied to the Shanghai 50 Indexes Stock Exchange, which are sample covariance matrix, scalar matrix, two-parameter covariance matrix, single index matrix, constant correlation matrix. We adopt principal components method and Markowitz portfolio method to measure stock market risk using VaR, getting the effect of measuring market risk. The result shows that sample covariance matrix and two-parameter covariance matrix could measure market risk more effectively.

本文以上证50指数数据为样本，采用样本协方差矩阵、数量矩阵、两参数模型矩阵、单指数模型矩阵、常量相关矩阵作为与股票相关的协方差矩阵，结合投资策略选择的主成分方法和Markowitz最优投资组合方法，计算VaR以度量市场风险，并比较了五种协方差矩阵度量市场风险的效果，结果表明，在主成分方法中，样本协方差矩阵和两参数矩阵方法能有效的度量市场风险。

Shenzhen crown passes the boxboard plant is the specialized production: The corrugated paper box, K=K, A=A, B=B, K3K, A3A, B3B, the paper box, the wooden crate, the wooden box, the honeycomb box, the honeycomb paper box, the paper protect the angle, the paper contour plate, the waterproof paper box, soaks the sacrificial paper box, spreads the sacrificial paper box, the closet, unfolds the frame, unfolds the cabinet, an exhibition box, unfolds the box, the bookshelf, the paper bookshelf, the corrugated paper closet, an exhibition cabinet, pulls out the chest of drawers, the drawer box, K three K, A three A, B three B, three paper boxes, five paper boxes, seven paper boxes, the white box, the white box, the single pit paper carton, the world copes, turnover box, outside wrapping paper box, paper carton, paper bag, handbag, handbag, the color box, the color box, the picture album, the instruction booklet, the color page, the beer box, the pit box, the card box, the card box, the MP3 color box, the hand engine box, the hand play the part of paper class packing and so on box, liquor box, tea box.

深圳市冠通纸箱厂是专业生产：瓦楞纸箱、K＝K纸箱、A＝A纸箱、B＝B纸箱、K3K纸箱，A3A纸箱，B3B纸箱，木箱、木盒、蜂窝纸箱、纸护角、纸卡板、防水纸箱，浸蜡纸箱，涂蜡纸箱，衣柜，展架，展柜，展架盒，展盒，书架，纸书架，瓦楞纸衣柜，展架柜，抽屉柜，抽屉盒，K三K纸箱，A三A纸箱，B三B纸箱，三层纸箱、五层纸箱、七层纸箱、白盒纸箱，白纸箱，单坑纸盒，天地盖箱，周转箱，外包装纸箱，纸盒、纸袋、手提袋，手袋，彩盒、彩箱，画册、线圈本、充皮笔记本、彩页、啤盒、坑盒、卡盒、咭盒、MP3彩盒、手机盒、手饰盒、酒盒、茶叶盒等纸类包装。

Main production: paper napkin machine, toilet paper machine, paper processing machinery, toilet paper rewinder machine, toilet paper equipment, paper processing equipment, rewinding machine, automatic toilet paper rewinder, tissue, paper napkin, toilet paper, wet tissue, tissue box pumping , color paper napkin machine towel machine, paper machinery, paper-making equipment, paper towel, mini tissue machine, tissue paper machine, paper cutter, paper machinery, paper plate machine, band saw cutter, tissue box pumping machine, tissue machine, non-woven fabric, color paper napkin

主要生产：餐巾纸机，卫生纸机，纸加工机械，卫生纸复卷机，卫生纸设备，纸加工设备，复卷机，全自动卫生纸复卷机，生活用纸，餐巾纸，卫生纸，湿巾，盒抽面巾纸，彩色餐巾纸机，方巾纸机，造纸机械，造纸设备，方巾纸机，迷你纸巾机，纸巾机，切纸机，造纸机械，盘纸分切机，带锯切纸机，盒抽面巾纸机，面巾纸机，无纺布，彩色餐巾纸

Deep water paper, thermal fax paper, Sham Tseng polyester cardboard, Sham Tseng pressure records paper, electroenciphalogram paper, low voltage electric susceptibility, oscilloscopic using paper, elctroacoustic paper, force are paper, meteorological record sheets and regulator inked ribbons for paper, thermal paper, ECG velcanized, bolgarii fax paper, spark a transcript of the shadow fax paper, pH test strip velcanized, hydrogen sulfide, carbon paper analysis paper, multi-powder-electrogenerated paper, sound paper, instrument records velcanized, potassium chloride punch holes in the paper, paper, electrostatic aunt of paper.

深井抗水记录纸、热感传真纸、深井涤纶卡纸、深井压力记录纸、脑电图纸、低电压电敏纸、示波用记录纸、电声纸、力感记录纸、气象记录纸、校表仪墨带纸、热敏记录纸、心电图原纸、火花传真纸、火花誊影传真纸、pH试纸原纸、硫化氢分析纸、碳素纸、湿式电化学记录纸、声芯纸、仪表记录原纸、氯化钾记录纸、打孔记录纸、静电姨妈纸。

In the research to demand of International reserves,first, according to the affective character of demand to transition of International reserves, choosing the decision theory of Markov and dynamic transition equation as basic model, the paper has set up two transition methods--- stationary matrix and dynamic matrix, the later matrix has improved the sensitive reaction to time and velocity. Second, combining with knowledge of linear algebra, the paper has analyzed and testified the positive associated relation between transition matrix elements on main diagonal and the convergent speed of system, and explained why international reserves transition embodies the character under new situation and why the transition process can be accelerated by the strike of international idle money. Third,on the quantitative calculating to elements of transition matrix,referring to multiplication theory and decomposing-composing method of system, the paper has transformed main three-factor deciding confidence of international monetary into detail modulus by comparing analysis measure,now the matrix has been decided.

在国际储备的需求分析研究中，本文首先选择马尔可夫转移方程作为基础模型，根据需求对外汇储备结构的影响特点，提出非定常转移矩阵变换方法，拓展了马尔可夫变换对时间和速度的敏感性；结合线性代数知识，分析证明了定常转移矩阵的主对角线元素值的大小与系统的收敛速度的正向关联关系，并利用结论解释了国际货币新动向下外汇储备转换表现出的趋势特点以及国际游资冲击对国际货币结构变化的加速影响；在转移矩阵元素的量化计算上，本文参考乘数理论和系统分解合成原理，采用对比分析方法把影响国际货币信心的三大要素综合量化为转移偏好系数，然后根据转移偏好系数确定转移矩阵的元素值，其中还分别具体给出了定常转移矩阵和非定常转移矩阵的计算方法及在变换中的使用方法，从而不仅在定量分析上应证了定性分析结论，而且反映了随时间变化的美圆、欧元、日圆的比例结构均衡过程。

Computing inverse matrix, a unit entrainment in the matrix behind the matrix, and then in front of it is processed into a matrix, diagonal matrix, the latter matrix that is the inverse matrix.

详细说明：计算逆矩阵，在矩阵后面夹带一个单位矩阵，然后把前面那一个矩阵处理成对角线单位矩阵，后面的那个矩阵就是逆矩阵。

Foreign Trade Department of the company strong technical force, unique paper-making technology and advanced paper making equipment, specializing in the production of specialty paper products, the main varieties are: qualitative filter paper, quantitative filter paper, chromatography paper, automotive filter paper, filter oilpaper, steel paper, wear-resistant flooring paper, chemical fiber filter paper, pH paper, rubbed mirror paper, silk paper, seed germination paper and electrolytic capacitor paper, paper dust bag; variety is complete in specifications, special specifications can be custom-made, products widely used in scientific research, industry, agriculture, medicine and public health and environmental protection departments.

公司以雄厚的技术力量、独特的造纸工艺和先进的造纸设备专业生产特种滤纸系列产品，主要品种有：定性滤纸、定量滤纸、层析滤纸、汽车滤纸、滤油纸、钢纸、地板耐磨纸、化纤滤纸、pH试纸、擦镜纸、绢花纸、种子发芽纸、电解电容纸、吸尘袋纸等；品种规格齐全，特殊规格可订做，产品广泛应用于科学研究、工业、农业、医药卫生和环保等部门。

The algorithm uses the wavelet decomposition and reconstruction in multi-resolution editing B-spline curves and transforms a zonal matrix or sparse matrix to a row simplified matrix using the properties of the augmented matrix of the system of linear equations,which is a zonal matrix or sparse matrix,by elementary row operation.

该算法利用方程组的增广矩阵为类带状矩阵或者稀疏矩阵这一特点，运用简单的矩阵的行初等变换，将类带状矩阵或者稀疏矩阵化成容易接受的行简化矩阵，解方程组，使小波分解与重构的过程快速准确，使从事相关工作的技术人员更容易理解和接受。

In chapter three, at first we introduces two kinds locally double αdiagonally dominant matrix from the concept of αdiagonally dominant matrix, by using this conception and the properties of αdiagonally dominant matrix and the techniques of inequalities, we discuss the relation of locally double αdiagonally dominant matrix and generalized strictly diagonally dominant matrix, according to these relations we obtain some effective criteria for generalized strictly diagonally dominant matrix.

在第三章中，首先由α-对角占优矩阵的定义，引进了两类局部双α对角占优矩阵，并利用它们及α-对角占优矩阵的性质，结合放缩不等式的技巧，讨论了局部双α对角占优矩阵与广义严格对角占优矩阵的关系，并由此得到判定广义严格对角占优矩阵的几个实用准则。

This project studies the scale-dependent deformation behavior of the metal matrix composite, the void nucleation and void growth mechanisms at the micron/submicron scale. The main results are:(1) In prophase, growth and coalescence of the void embedded in the graded matrix are analyzed in detailed;(2) Based on the infinite solid model containing a micro-void, coupling effects of the void shape and the void size on the void growth are studied carefully, the results show that it seems to exist a critical equivalent void radius, which is associated with the material length. When radius of a microvoid is close to or smaller than the critical void radius, the micro-void growth rate is essentially eliminated;(3) The coupling effects of the particle shape and size on the mesoscopic stress fields within the particle and matrix are also investigated by introducing the conception of inclusion/matrix interfacial energy. The results show that the stress concentration factors within the particle and on the matrix/particle interface are also strongly size-dependent,so the void nucleation mechanism is size-dependent.(4) By employing a specific orthogonal curve coordinate frame and a 'kernel function' conception, a 'unified method'solving the spheriodal and spherical void problems is suggested; by this unified method, size-dependent plastic potentials of the porous materials containing the spheriodal or spherical voids are obtained, which extend the traditional Gurson model for the spherical void and GLD model for the spheriodal voids to the micron scale.(5) Based on the RVE model containing the spheriodal or spherical particles, the influences of the particle shape and size on the size-dependent mechanical behavior of metal matrix composite are studied.

中文摘要：本项目对金属基复合材料在微细观尺度下的尺度相关变形行为、孔洞形核及长大的机理和模型进行了研究，取得了如下主要结果：1）在前期研究中，探讨了基体的梯度分布对孔洞长大和聚合的影响；2）基于含孔洞的无限大体模型，探讨了孔洞形状和孔洞尺寸对其长大的耦合作用，结果表明：可能存在一个与材料特征长度相关的临界孔洞尺寸，当椭球孔洞的等效半径小于临界孔洞半径时，孔洞的长大受到明显抑制；3）通过引入基体/夹杂界面能的概念，分析了夹杂尺寸、夹杂形状对材料细观应力场的耦合影响，结果表明：颗粒内部和界面上的应力集中因子强烈地依赖于夹杂的尺寸和形状，因此，孔洞的形核机理是尺寸相关的；4）采用一种特殊的正交曲线坐标系和引入"核函数"的概念，"统一"地得到了含椭球和球形孔洞的材料的尺寸相关塑性势，它将传统的Gurson球形孔洞模型和GLD椭球孔洞模型推广到微尺度范围；5）基于含椭球和球形夹杂的体胞模型，初步研究了夹杂形状、夹杂尺寸对金属基复合材料尺寸相关力学行为的影响。

Through comparing with the results by simulation to study the effects of theprojectile"s final velocity, the angle of rotation and the ballistic trajectory"s migration withdifferent projectile"s rotating speeds, different target"s moving speeds and differentpenetration angles.

通过比较数值模拟的结果来研究不同弹头转速、目标速度、侵彻角对侵彻过程中弹头最终速度、翻转角度和弹道偏移的影响。

I love stationery and all the accoutrement of writing.

我爱文具以及所有的书写的工具装备。