DBLianXiWJ_a5

说明：  对数据库的增删改查，并有优美的前端界面，可以显示数据库的内容(Add, delete, modify and query the database, and has a beautiful front-end interface, which can display the contents of the database)

数据库系统概念全书第六版答案（覆盖全）。(The answer to the sixth edition of database system is the answer.)

character recoginition by matlab

完全用PHP来完成的办公自动化系统，主要是完成对数据库的操作，具有一个办公系统的基本功能。(Entirely in PHP to complete the office automation systems, mainly to complete the database operation, has a basic function of office systems.)

用于程序人员存放自己的各种代码的工具 1支持数据库备份和导入 2支持程序升级 3资料修改维护方便(For program staff kept their own tools for a variety of code to support one database backup and import 2 support escalation procedures to facilitate the maintenance of 3 data modification)

本文提出在数字移动通信中子带滤波器组处理可以提高不同阵元信号的相关性，从而能改善自适应阵列抑制码间干扰(ISI)和共信道干扰(CCI)的能力．在文[6]的基础上，本文研究了子带滤波器组在宽带自适应天线旁 瓣相消中的应用，对其原理进行了理论分析，提出了有效的子带处理方法．经研究表明，子带滤波器组处理能有效增加主、辅助天线信号的相关性，从而提高系统干扰相消比．而且适当的过采样能使系统干扰相消比进一步提高．计算机仿真结果和实测雷达数据处理结果证实了子带处理方法的有效性和理论分析的正确性．(err)

枝切法sar数据处理，相位解缠，复图像配准(Branch cutting SAR data processing, phase unwrapping, complex image registration)

说明：  每组不超过4人，每人从TPC-H中选择至少三个查询进行执行，并进行性能调整。同组人员所选择的查询不能相同。各查询均必须包含：两个以上的表连接操作，其包含至少一个聚集函数。 每位同学的该作业均放在一个命名如“姓名-学号-专业-作业1”的目录中 用尽能想到的所有技术方法，使得选定的查询的某些性能指标尽可能的差 用尽能想到的所有技术方法，使得选定的查询的某些性能指标尽可能的好(Each group has no more than 4 people. Each person selects at least three queries from TPC-H to perform and performs performance adjustment. The queries selected by the same group can not be the same. Each query must contain more than two table join operations, which contain at least one aggregation function. Each student's homework is placed in a directory named "name student number professional operation 1". Using all the technical methods that can be thought of, make certain performance indicators of selected queries as poor as possible. Use all the technical methods that you can think of, and make certain performance indicators of selected queries as good as possible.)

很实用的文档管理系统,可以进行相关的检索,浏览,版本管理等功能.(very practical document management system that can be related to the retrieval, browsing, version management capabilities.)

说明：  首先要在登陆系统时有身份验证功能，其次能对有关学生的各类信息的数据进行添加、修改和删除，能对学生成绩的数据进行添加，修改，删除，能对学生信息进行按学号，姓名进行查询，能对学生成绩按照课程号和姓名进行查询；系统管理员除可实现普通用户的操作外还可以添加，修改，删除用户信息，并能对密码进行修改。(We must first login authentication, and second on the data of all kinds of information about students to add, modify and delete student achievement data to add, modify, delete, according to school student information, name queries on student achievement in accordance with the course number and name of the query In addition to the ordinary user of the operation, the system administrator can also add, modify, delete user information, and can modify the password. )