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Based on the fact that managing changes of data is the most neglected problem in the data warehouse metadata management, the paper proposes a model that is based on CWM and repository technology and can manage metadata of data warehouse.

针对元数据的变更管理是数据仓库元数据管理中最容易忽略的问题，本文提出一种基于数据仓库元数据管理系统的元数据管理模型。

Based on applying domain color, cylindrical distance and connectivity analysis to divide fields, static image features are presented for feature abstraction, such as color, texture, etc. it's also proposed dynamic video features to solve feature abstraction, which are based on applying the method of block motion estimation to build the field of video shot motion, such as motion texture, etc.

针对特征提取问题，本文在用主颜色、圆柱距离以及连通分析的方法实现比赛场地分割的基础上，提取了颜色、纹理等一组静态图像特征；在使用块运动估计方法建立视频镜头运动场的基础上，提取了运动纹理等一组动态视频特征。

Finally, the change of joint angular velocity of the supporting leg is deduced based on the Lagrange dynamic equation when a foot of the robot collides with the ground.3, Dynamic stability conditions of the robot in stance phase and flight phase are derived based on the D\'Alembert principle.

这种动力学方程由微分方程和代数约束方程组成，其优点是通过稍微修改约束方程和雅克比矩阵，就可以方便地建立各自动力学方程，建模速度快、精度高。

Comparing with Daikon,the method has two excellent features.Firstly,it is better expansible based on the RDBMS technology;Secondly,discovering of program invariants can be accomplished by the function of SQL query based on the technology of relational database which can detect the program invariants in a nimble way.

该方法和Daikon等现有的程序不变量检测工具检测方法比较具有明显的特色和优势：第一，基于关系数据库技术，具有良好的可扩展性；第二，使用SQL条件查询功能实现非函数依赖程序不变量检测，检测方法具有很好的灵活性。

Based on the analysis of both home and abroad status quo of virtual assembly, this paper investigates the software and hardware architecture of virtual assembly system in network environment. It develops VR hardware interfaces based on Java platform, such as data glove, 3D position tracker and shutter glasses, etc.

论文在分析国内外虚拟装配技术研究现状的基础上，较为深入地研究了网络环境下虚拟装配系统的软硬件体系结构，设计了虚拟现实硬件如数据手套、三维位置跟踪仪、闸门式立体眼镜等设备的基于Java平台的接口，实现了立体显示、虚拟手抓取操作等功能，进行了虚拟环境中的碰撞检测。

Firstly, a probability computing model is constructed to present system call sequences and the SCSFA algorithm is designed to predict the attempt of intrusion and to determine what need to protect, which is based on the analysis of system call sequence in virtual computing systems; Secondly, the sensitive data protected are divided into a number of film data, and for the goals of random errors tolerance, each tablet data are redundant backup based on Byzantine fault tolerance; Then, the redundant data are distributed to different virtual machines.

设计SCSFA算法分析虚拟计算环境的系统调用行为序列，以识别虚拟计算环境下的入侵企图，预测敏感数据的高危区域；其次，将要保护的数据划分成若干片数据，并以容忍虚拟计算环境随机错误为目标对每个片数据冗余备份；然后将冗余片数据分散到不同虚拟机上。

In order to construct an intelligent transducer system based on LonWorks, software in the top layer based on the LNS DDE Server is designed to manage and control the network.

在分析了LonWorks网络服务技术之后，深入研究了智能传感器网络监控管理系统的功能设计、功能模块划分以及功能模块的编程实现。

In doing so, we have gotten these objects:(1)built the relationship between natural vegetation pattern of china and the climate,based both on Kira-index and dry/wet index;(2)built the phenology model describing main natural vegetation types of china,based on degree-day;(3)built the drought sensitivity function for main vegetaion types of china; and (4)integrated the drought sensitivity function with the PDSI.

在执行过程中我们基本上按照项目计划书的原初设计完成了如下的工作：①采用Kira的生物热量指数与生物干湿指数相结合的思想，建立了中国自然植被的空间分布与气候因素之间的数量关系；②利用有效积温与生育期之间的关系，建立了自然植被主要类型的物候模型；③根据文献中的实测资料建立了主要农作物类型、自然植被主要类型的缺水敏感性指数；④将此缺水敏感性函数代入Palmer干旱强度指数的计算模型之中。新的干旱强度指数计算步长为周(7天)。

Based on the weather data of geographical points and the phenological data of CBW, the single sine model that forecast the occurrence date of cotton bollworm is developed. By using year's data of Shihezi area, parameter of CBW emergence of overwintering generation, first generation and second generation in the Xinjiang region is built under the different low temperature. Based on the above research, the concepts, functional development temperature threshold and functional developmental degree-day, are put forward. Using the data of different station in the Shihezi area, the model is validated

基于地理点的气象数据和棉铃虫物候数据，建立了棉铃虫发生期预测的single sine 模型，利用石河子地区多年的数据，建立了不同发育温度条件下的新疆地区越冬代、第一代和第二代棉铃虫羽化的参数库；在此基础上提出功能发育起点和功能发育日度的概念并修订了模型，利用石河子地区植保站的数据，验证了模型的可行性。

Based on theoretical analyses of high birefringence fiber loop mirror, a high-speed demodulation system used for micro-vibration detection is developed. And based on this system, a new method to demodulate acceleration is proposed.

在对高双折射光纤环镜进行理论分析的基础上，报道了一种用于检测微振动的新型高速光纤光栅解调系统，进而提出了一种加速解调的新方法。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。