统计分析

ABSTRACT The applications of the multivariate statistical analysis in the process control are studied in this dissertation.

本篇论文研究了多元统计分析方法在过程控制中的应用。

This course will introduce the basic theories of Multivariate Analysis, common methods and its application.

本课程旨在介绍多元统计分析基本理论、常用方法及其实际应用。

In this thesis we focused on the research of spectral distribution of large dimensional matrix and its application in multivariate statistical analysis.

本文的研究工作主要集中在大维样本协方差矩阵谱分布的理论研究及其在多元统计分析中的应用。

Through the analysis of spatial structure and multivariate statistics, the pollution sources of heavy metals in Beijing soils were explored.

通过空间结构和多元统计分析，初步探索了北京市土壤重金属污染的成因。

Authors believe that multivariate statistics analysis applied to fingerprint can be recommanded in the quality control of shenmai injection.

作者认为多元统计分析方法能可推荐为参麦注射液质量控制标准的判断方法。

Multivariate statistics has proved that urban impervious surface area is the most important factor contributing to the development of the urban heat island while water and vegetation can significantly reduce the urban heat island effect.

多元统计分析表明不透水面是引发城市热岛的最重要因子。

Six cadavers were prepared for necroscopy, operative procedure of ILIF were simulated on L3-S1, and all related important anatomic structure and their relationship were observed and record. ILIF with transpedicle screw fixation were also performed with cage insertion.3. Twelve fresh frozen bovine lumbar functional spinal units were prepared for biomechanical testing. According to the different treatment order, the specimens were devided into 7 groups, which included: 1intact specimens, 2specimens were treated by left unilateral facetectomy and had homolateral anatomical threaded cages inserted, 3 TLIF with homolateral pedicle screw fixation, 4 TLIF with bilateral pedicle screw fixation, 5 specimens had anatomical threaded cages inserted on the left by intertransverse process approach, 6 ILIF with homolateral pedicle screw fixation, 7 ILIF with bilateral pedicle screw fixation.

方法1、对20名正常志愿者L3-S1节段进行CT增强+三维重建检查，在三维重建图形上测量横突长度、上下横突间距、椎间孔外椎间隙高度及斜径，观查横突间区域血管走形特点并测量血管内径，然后进行统计分析及评价。2、采用福尔马林固定尸体标本六具，模拟ILIF手术对L3-S1节段进行操作，观察横突间区域重要结构的位置和毗邻关系，并模拟同侧椎弓根钉和单枚椎间融合器的置入过程，探讨该术式存在的问题并改进。3、采用小牛脊柱运动节段标本12具，依序进行不同处理后分为以下7组：⑴正常对照组CG⑵左侧小关节切除+椎间融合器植入组(TLIF⑶TLIF附加同侧椎弓根钉固定组；⑷TLIF附加双侧椎弓根钉固定组；⑸左侧横突间入路椎间融合器植入组ILIF⑹ILIF附加同侧椎弓根钉固定组；⑺ILIF附加双侧椎弓根钉固定组。

The results show that the occurrence of postnoon multiple arcs demonstrates a single peak distribution, and the maximum peak is at 1445 UT (1645 MLT) and the position lies to the nightside part of "1500 MLT hot spot"(1300-1700 MLT).

本文利用2001-2003年南极中山站175天全天空摄像机观测，对午后多重极光弧的出现率及其与Kp指数的关系进行了统计分析，结果表明午后多重极光弧出现率呈一单峰分布，最大发生率出现在1445UT(1645MLT)，其位置在1500MLT极光热点(1300-1700MLT)近夜侧的部分。

Methods Two hundred and ninety-nine patients with advanced gastric cancer were analyzed in this article.

方法对 1982～ 1992年间收治并行手术治疗的进展期胃癌 2 99例进行统计分析。

Hence, this research uses the Rough set theory, a nonparametric statistic method that different from other general statistic method. This method was reported in 1982 by Z.

因此本研究改采不同一般统计分析的一种无母数方法－约略集合理论，此方法是由波兰学者Z。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。