关系数据系统

In this paper, GIS is adopted to analyze the long-time series of ecological feature of Ommastrephes Bartrami and the relationship between Ommastrephes Bartrami fishery and oceanic environment factors in North West Pacific, based on the North West Pacific Ommastrephes Bartrami database.

本文利用地理信息系统，基于863项目建立的西北太平洋柔鱼综合数据库，对西北太平洋柔鱼渔场与海洋环境因子的关系，以及柔鱼生物、生态学特征进行了长序列数据分析研究。

It utilized factor analysis and regression analysis ofthe multi-statistics to make the quantitative analysis on a great deal of core proxies in the North Indian Ocean and Indonesian Archipelago areas, and acquiredthe exact conversion relations of paleoceanic environment parameters (sea surface temperatureand salinity) and proxies. Then it made the change curve which can show the changes of paleo-ceanic environment parameters (sea surface temperature and salinity) which followed the changesof depth and provided the contrast between paleoceanic environment parameters of different coreson the landscape orientation. This paper supplied a more scientific and exact method for resumingthe paleoceanic environment on paleoceanography research.

本文阐述了以古海洋学数据库系统数据为基础的古海洋学多元统计分析模型，利用多元统计学中的因子分析和回归分析技术对北印度洋以及印尼多岛海地区大量岩芯的替代指标做定量分析，求出古环境参数与替代指标的精确转换关系，从而做出各岩芯处古环境参数随深度的变化曲线，提供不同岩芯在横向上的古环境参数对比，为古海洋学研究中恢复古环境提供了一种更科学更精确的方法。

In this algorithm,by constructing a UserlD-URL revelant matrix similar customer groups are discovered by measuring similarity between column vectors and relevant web pages are obtained by measuring similarity between row vectors;frequent access paths can also be discovered by further processing of the latter.

第四是本文将传统数据挖掘过程中的各种关键技术，引入到对Web使用信息的挖掘活动中，结合关系数据库的特点设计并实现了一个具有可广西人学颀士学位论义视化功能的Web使用挖掘系统WLGMS。

The mian works are as follows:(1)By coprecipitation technique and coprecipitation- gel technique the nano zirconia powder was produced, factors affecting the properties of nano zirconia powder such as pH and the content of stabilizator are analyzed;(2)By the new pressless sintering process, the nano zirconia ceramic was produced, factors which can affecting the properties of nano zirconia sinter body such as moulding press and the sinter temperature are analyzed;(3)By the microtherm pressless sintering process, the nano copper added functional zirconia ceramic composite was produced, microscopic dimensionality and electric properties of such sinter body and the factors affecting such sinter body are analyzed;(4)By the self-invented "external albumen coating" technique the zirconia powder was successfully coated by carbon in the corresponding sinter body, which can help solve the traditional aggregation problem to some degree;(5)Based on analyze the characteristics in the nano powder sinter process, the "three-ball sinter model" was proposed, for the relationship between the relative density and porosity of sinter body, by mathematical fitting, such model was successfully verified.

本研究比较系统地研究了纳米氧化锆陶瓷的合成与成型机理，特别是讨论了纳米氧化锆陶瓷的稳定性，为防止纳米颗粒在外场作用下的团聚和长大提供了理论基础和实验数据，具体工作有以下几方面：(1)采用共沉淀法和共沉淀-凝胶法制备了纳米氧化锆粉体，并分析了pH值和稳定剂含量对粉体性能的影响；(2)采用新型无压烧结工艺制备了纳米氧化锆陶瓷，并分析了成型压力和烧结温度对烧结体性能的影响；(3)采用低温无压烧结工艺制备出添加纳米铜的功能性纳米氧化锆复合陶瓷，并分析了烧结体的微观尺度和电学性能的变化以及影响因素；(4)通过自创的&鸡蛋清外敷法&在真空镀膜台上对纳米氧化锆粉体进行包敷碳颗粒的表面处理，并采用真空烧结工艺制得相应烧结体，初步开始解决陶瓷烧结过程中团聚长大这一传统难题；(5)通过分析纳米颗粒在制备烧结体过程中的实际特点，提出了&三球烧结数学模型&，通过引入坯体相对密度和孔隙率的相对关系分析并通过自行编写的数学拟合软件，验证了这一数学模型。

Through simulation of the real process of thomcolumbar burst fracture and use of modem dynamics techniques, the present study was (1) to investigate the kinetic relationship between structural damage and impact energy absorption and dynamics mechanism of thoracolumbar burst fracture by quantitative analysis of various injured segments;(2) to explore the instability mechanism of L1 vertebral burst fracture and its injury threshold by three-dimensional analysis of the injured segment with stereophotogrammetry in combination of transient physical parameters, anatomy and image;(3) to explore the corresponding relationships between impact energy, geometry parameters and biomechanics by geometry and biomechanical analysis of thoracolumbar burst fracture, which may provide an objective standard for evaluation of spinal injury severity and experimental evidence for adoption of biomechanical treatment in clinic;(4) to evaluate the fixation effect of different instruments and the effect of intervertebral bone graft on segment fixation by analysis of the threedimensional stability of different internal fixation instruments and their decompression of the spinal canal, which may provide experimental evidence for therapeutical selection for thoracolumbar burst fracture in future; and finally to investigate the effect of various instrument fixation on dynamical characteristics by comparison and quantitative analysis of frequency and amplitude responses, which may provide certain theories and experimental evidence for application of vibration test to judge the stability of the spine.

本研究从胸腰段脊柱爆裂骨折发生的实际过程出发，以现代动力学检测及计算机多通道高性能数据采集分析系统等高新技术为基础，实时量化分析损伤节段的工程参数，揭示了结构破坏与能量吸收的变化规律，探讨了胸腰段脊柱爆裂骨折的瞬态损伤机制；利用三维立体摄像技术，对不同损伤程度的节段进行三维运动分析，结合瞬态物理参数、影像学和病理解剖，明确了〓椎体爆裂骨折的失稳机制及损伤阈值；通过对胸腰椎爆裂骨折的几何学变化及生物力学分析，明确了撞击能量与几何参数、几何参数与生物力学的相应关系，为评判脊柱损伤程度提供了客观标准，为治疗中采取适宜的生物力学方法提供了实验依据；通过对比分析不同内固定器械的三维稳定性和对椎管的减压作用，评价不同器械的复位固定作用，同时比较椎体间植骨对节段固定作用的影响，为今后临床胸腰段脊柱爆裂骨折的治疗选择提供依据；利用振动测试与分析技术，比较及量化分析了不同致伤状况的频幅响应特征，比较分析了各种器械固定对动力学特性的影响，为今后临床建立基于振动测试与分析技术判断脊柱稳定性的诊断方法，提供了一定的理论和实验依据。

At the same time, with the improvement of large-scale relational database technology, GIS software is developing in the direction of the "centralization of management". That is to say, by making full use of the large-scale relational database technology, both spatial data and attribute data can be stored unitedly in database.

大型关系型数据库技术的日益完善，促使GIS软件都在向&集成管理&的方向发展，即充分利用关系数据库管理系统的优势，真正实现空间数据的一体化管理。

Based on the complete sequences of the mitochondrial 12S rRNA and Cyt b genes, and the combined sequences of the two genes, the phylogenetic relationships among all extant zokors except the Siberian zokor (M. myospalax) and the Smith's zokor .

根据线粒体12S rRNA基因和Cyt b基因全序列以及合并的序列数据分别研究了鼢鼠亚科已知所有物种（除阿尔泰鼢鼠Myospalax myospalax和斯氏鼢鼠M.smithi）的系统发生关系。

It is expected to utilize advanced integration theory and modern technology including computer technology, network technique and database to optimize digital information. In respond to certain demand, network integration amalgamates and restructures all distinct digital objects, function structure and mutual relationship of digital information to form a new organic whole which boasts of higher efficiency and greater performance.This paper mainly include such following points:Firstly, it gives the outline description of digital library network information integration theory.

通过本研究，期望利用先进的整合理论与整合思想，以及计算机技术、网络技术和数据库处理技术等先进的现代技术将网络信息资源进行优化组合，依据一定的需要，对各个相对独立的网络信息资源系统中的数据对象、功能结构及其互动关系进行融合、聚类和重组，重新结合为一个新的有机整体，形成一个效能更好、效率更高的新的网络信息资源体系，高效率发挥各类资源的作用。

Under the submarine synthetic display/control simulation system, the functional requirements of each federate and data exchange relationship between the federates are analyzed, Simulation Object Model is built up, and the corresponding object class and interaction class are given.

在潜艇综合显控台仿真训练系统的仿真框架下，分析了成员功能需求，对联邦成员间的数据交互关系进行了探讨，并建立了成员SOM，详细设计了相应的对象类和交互类。

Based on the Multidimensional-Multiattributional Causality Scale (Lefcourt, 1981), the questionnaire is tailored and reworded to better serve the purposes of this research and to be better understood by the subjects.

作者用SPSS(10.0)数据处理系统分析了调查研究的结果并得出如下结论：一、总体上看，绝大部分学生认为学习成绩和努力之间有互变关系，同时把成功归咎于能力，从这点来说，学生们持有积极的归因信念。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。