数据信息

But, in some applicaton fields, such as political, economical and military affairs, etc., sensitive multimedia is transmitted by public channel or storaged in public data base. Which makes it face threaten of wire tapping or tamper.

但是，在犹如政治、经济、军事等场合，敏感的多媒体信息通过公开信道传输或者存储于面向公众的数据库中，很容易受到信息窃取、数据篡改等攻击。

In order to solve the heavy workload and the low efficiency of the train maneuver, one kind of train security alarm system based on GPS and INS technique was presented. The Kalman filter used in the information fusion of GPS and ISN was analyzed, solving the problem of the infinite position error of an INS and the slow modification rate of a GPS. By using the original train database to correct the mileage, the precision of the system was improved.

为了弥补目前火车车辆运行中人工统计调度工作量大、效率低等缺陷，提出了一种基于全球定位系统和惯性导航技术的火车安全告警系统的设计方案；重点讨论了GPS/INS在信息融合时所使用的卡尔曼滤波方法，避免了独立的惯性导航系统无限位置误差和GPS的1 Hz慢速数据修正的问题；利用原有国家铁路网数据库进行数据修正，进一步提高了系统的精度。

But, current technique application all is built on higher hardware to deal with information. This paper mainly do research on the gate system from various method of the information data processing, which is used with household-use computers as a handle tool.

对此，为更有效地推动应用技术的普及，本文以一般家用计算机为处理工具，从信息数据处理各种方法着手全面探讨生物特征信息识别的门禁系统。

But, current technique application all is built on higher hardware to deal with information. This paper mainly do research on the gate system from various method of the information data processing, which is used with household-use computers as a handle tool.

对此，为更有效地推动应用技术的普及，本文以一般家用计算机为处理工具，从信息数据处理各种方法著手全面探讨生物特征信息识别的门禁系统。

Based on the analysis of the embedded system and embedded software development process and memory management, we researched the unitary requirement and particular requirement for memory management module of embedded software development platform. Then the infrastructure of communication industry oriented embedded software development platform had been described, and the design ideas of memory management module of embedded software development platform had been put up: kernel data section management, process stack and data section management , UB section management , high mapping address management and specific implementing code to realize the application, release, protection, leak detection, system information providing of memory.

本文在分析了嵌入式系统及嵌入式软件开发过程及其内存管理的特点的基础上，研究嵌入式软件开发平台的整体需求和对内存管理模块的具体需求；描述了面向通信行业的嵌入式软件开发平台的整体结构，具体提出了嵌入式软件开发平台内存管理模块的设计思想：核心数据区管理+进程堆栈与数据区管理+UB区管理+高端映射地址的管理，和具体实现代码来实现内存申请与释放、内存保护、内存泄漏检查、提供系统内存信息等功能。

Michael Q. Zhang, Professor of Cold Spring Harbor Laboratory and Changjiang Chair Professor of Tsinghua University, and Dr. Xuegong Zhang, Professor of Tsinghua University and Tsinghua National Laboratory. The candidate should have a gained Ph.D degree in related majors and have experience in computational biology research such as DNA sequence analysis and microarray data analysis. In particular, strong skills in machine learning / statistical pattern recognition and working knowledge of molecular biology are required. Efficient ability of reading, writing and communicating in English is required.

Zhang博士在清华信息科学与技术国家实验室生物信息学研究部与张学工教授联合招收计算分子生物学博士后研究人员1-2名，应聘者需具有相关专业的博士学位，在如DNA序列分析、基因芯片数据分析等方面有计算生物学研究经验，尤其在机器学习与统计模式识别方面较强的基础和技能，在分子生物学方面有必要的知识，同时需要有较强的英语阅读、写作和交流能力。

This graduated design program, data collection ware produce is the only flat machine of 89 C51 that uses the company of ATMEL with AD0809 chip do a collection simulated voltage signal, conversion number word signal passes string mouth again by only flat machine to dispatch to the handling of personal computer, additionally, 3 number pipe LEDs show the digital information of collection.

本次毕业设计课题，数据采集器制作，是利用ATMEL公司的89C51单片机和AD0809芯片做一个采集模拟电压信号，转换为数字信号，再由单片机经过串口发送给PC机处理，另外三个数码管LED显示采集的数字信息。关键字：单片机，数据采集，信号处，AD0809芯片

The data structure and its establishing method of information system for city service and drain pipe nets based on GIS are studied.

研究了城市给排水管网信息系统的数据结构及其建立方法，以及在微机上利用C语言进行城市给排水信息系统的设计，并实现了部分空间分析功能。

This paper devotes to mining the incomplete information of error data as prior knowledge, which can apply to the multi-stage inversion and improve the precision of some models parameters. Wetake the SAIL model as an example, and the results show that it is feasible. This thesis consists of four chapters.

本文致力于挖掘误差中未尽的信息作为先验知识，应用于多阶段遥感反演中以提高参数反演精度，并以SAIL模型为例，结果说明了把从误差数据中提取的先验信息用于提高遥感参数反演精度的可行性。

Due to the nonlinear and nonstationary of river water turbidity, a novel intelligent forecasting model based on phase space reconstruction and RBF neural network is proposed. Firstly, the embedding dimension is chosen by using the false nearest neighbor method. And the time delay can be obtained with the mutual information. The phase space is reconstructed from the time series with the embedding dimension and the time delay got. The reconstructed time array is used as the input signal of RBF neural network.

首先将现场取得的数据进行预处理，建立所需时间序列样本；再利用虚假邻域法确定最小嵌入维数，根据互信息法计算确定浊度时间序列的最佳延迟时间；接着根据取得的嵌入维数和延迟时间对江水浊度时间序列数据进行相空间重构；利用重构相空间后的时间阵列，作为建立预报模型所需的浊度样本阵列，用RBF神经网络建立预报模型；利用该模型对江水浊度进行预报。

This brought fixed cost, but it also is meant at the same time use a source to won't make you singlehanded assume a problem.

这带来了一定的成本，但它同时也意味着使用开源不会让你独力承担问题。

He gained a small fortune in real estate.

他在房地产上发了一笔小财。