查询词典 distributed data base

With the technological development, more and more original data shall be acquired and processed and a large amount of intermediate data and result data will be produced in processing. Pure digital data have developed to multimedia data such as sound and image ones, so that there are more demands for advanced data management. Moreover, the system calls for higher integration degree even on-line real-time processing in many cases, and its integration with network and distributed processing need considering as well.

随着科学技术的发展，采集、处理的原始数据量越来越大，且在处理过程中将产生大量的中间数据和结果数据；数据已经从纯粹的数字数据发展到声音、图像等多媒体数据，对数据管理的要求越来越高；系统集成度越来越高，在许多场合要求联机实时处理，并需要考虑与网络的集成，进行分布处理。

Data base data be lost and data base have been assumed analysis by encompassment of illegal consumer data base security technology.

本文以比较常用的access、数据库为例围绕数据库的安全性技术作了分析。

The principles are as follows:①preliminary interpretation is carried out on crosswell seismic data in depth domain to establish an accurate velocity model;②sinc interpolating function is used in depth-time conversion to realize waveform fidelity;③the recognition of surface seismic data is utilized to ascertain the reflection characteristics of crosswell seismic data in time domain;④ good spatial continuity of surface seismic data is adopted to retrieve the "hopper" defect in crosswell seismic profiles and the deficiency of lateral contrast between crosswell seismic data;⑤in fine calibration of well-side traces of crosswells and surface seismic data, coincident time-depth relation is used to match two seismic data so as to make the calibration more reasonable;⑥in multi-crosswell seismic data inversion by sparse spike inversion method, lateral restraints are strengthened to ensure the continuity of inversed wave impedance profile.

实现反演的基本原理是：对深度域井间地震资料进行初步解释；建立精确的速度模型；在对井间地震剖面进行深时转换时采用sinc插值函数实现波形保真；利用对地面地震资料的认识来落实时间域井间地震资料的反射特征；利用地面地震资料良好的空间连续性弥补井间地震剖面的"漏斗"缺陷和井间资料之间横向对比性的不足；在井间地震和地面地震井旁道精细标定中，通过一致的时深关系来实现两种地震资料之间的匹配，使井旁道的标定更加合理；在利用稀疏脉冲反演方法进行连井井间地震资料反演时，通过增强横向约束保证反演波阻抗剖面的连续性。

In order to be able to transmit a variable volume of data, particularly in a single coherent data block, between message transmission planes of telecommunications interfaces of a hybrid telecommunications system with minimal effort within the message transmission planes, if the variable data volume exceeds the maximum data volume which can be transmitted between the same message transmission planes of the telecommunications interfaces, then a data element specific to the transmission layer is used as a function of the varying data volume at least twice in succession for the transmission of the data volume in the data block.

要約 为在混合通信系统中能各自以最小的传输工作量在各通信传输层面中传输混合通信系统各通信接口的通信传输层面之间的一个变化的数据量，尤其当此变化的数据量超过在各通信接口的相同通信传输层面之间最大可传输的数据量时仍能在一个单一的互相关联的数据块中传输此变化的数据量，取决于此变化的数据量至少两次依次地对在数据块中的数据量的传输采用一种传输层面专门的信息元素。

An information recording disc having a burst cutting area (102) for recording control information for a reproducing apparatus by removing a reflective layer of the disc in a striped shape and a data recording area (104) for recording user data, wherein the burst cutting area (102) includes at least one BCA control information area and the BCA control information area comprises: an application identifier area (106) for identifying applications of control data; a data length area (108) for indicating data length of the control data; and an application specific data area (109) for recording the control data.

一种信息记录盘，具有突发分割区域（102），通过除去条带形的盘的反射层和数据记录区域（104），用于记录再现装置的控制信息，其中，突发分割区域（102）至少包括一个BCA控制信息区域，BCA控制信息区域包括：识别控制数据的应用程序的应用程序识别符区域（106）；指示控制数据的数据长度的数据长度区域（108）；记录控制数据的应用程序特殊数据区域（109）。

The digital signature is some data that attachment on data units, perhaps password transformation which does to the data unit, this kind of data or the transformation permission data unit receive with by confirmed the data unit the origin and the data unit integrity and the protection data, prevented is carried on by the human fabricates.

数字签名[5]是附加在数据单元上的一些数据，或是对数据单元所作的密码变换，这种数据或变换允许数据单元的接收者用以确认数据单元的来源和数据单元的完整性并保护数据，防止被人进行伪造。

Communication;Communication systems;Communication technology;Components;Data;Data description;Data management;Data processing;Data processing system;Data records;Data representation;Data transfer;Definition;Definitions;Earth's surface;Encoding;Geodesy;Geographic information;Geographical;Geography;Geology;Geomatics;Geotechnics;Information;Information exchange;Information processing;Information technology;Metadata;Metafile;Quality;Quality assurance;Schemes;Specification;Topology

中文标题地质信息。数据描述。元数据中文主题词大地测量学；数据描述；编码；数据；传播学；传播技术；数据管理；数据处理；数据表示；地理学；元部件；通信系统；元数据；数据记录；信息处理；数据传送；拓扑学；地质学；大地构造学；数据处理系统；图表；定义；规范；地质信息；地球表面；地质信息管理；元文件；信息交流；地质的；信息；信息技术

This paper adopts stepwise in-depth and refinement method to make analysis of technologies about current dynamic distributed architecture and pointed compares the advantage and weakness of kinds of techniques. At the same time the paper studies the dynamic distributed computing technology. On basis of before-mentioned technology, the paper applies the new 00-based dynamic distributed architecture technology and theory to developing and implementing the remote education subject-base system.

本论文采用逐步深入、求精的研究方法，对目前的动态分布式系统结构的各种技术进行分析，并具有针对性的比较了各种技术的优缺点，同时研究了动态分布式计算技术，在此基础上应用基于面向对象技术的新的动态分布式系统结构技术和思想来开发实现了远程教育题库系统。

The system of phase equilibrium data of the Fe-Cu base alloy is established relatively, the spinodal decomposition range of the Fe-Cu base alloy is calculated utilizing Thermo-Calc software, The composition range of the spinodal decomposition of the Fe-Cu base alloy is prognosticated with more accuracy; The self-formed mechanism of egg-type microstructure of the Fe-Cu base alloy with spinodal decomposition in the liquid-phase region under gravity conditions is theoretically investigated. Based on the analysis and calculation of interfacial tensile stress induced by the temperature gradient in the process of solidification, the theoretical results interpret preferably the self-formed mechanism of egg-type microstructure of the Fe-Cu base alloy through the analyzing of force states of metallic droplet in the rapid solidification.

建立了较为完整的铁铜基合金系的相平衡数据体系，利用Thermo-Calc软件对铁铜基合金系的液相调幅分解成分范围进行了计算，较准确地对铁铜基合金系的液相调幅分解成分范围进行了预测；从理论上对液相调幅分解型铁铜合金卵型结构的形成机理进行了研究，基于凝固过程中由温度梯度所导致的界面张力的分析与计算，通过考察快速凝固过程中金属液滴受力情况，较好地解释了液相调幅分解型铁铜合金卵型结构的自形成机理。

This work contributed essentially to optimal planning of refinery management. A strategy for solving the decision problem of short—term refinery planning is proposed, that is, to obtain the real time information of unit operations and environmental conditions by means of computer simulation, to dynamically configurate and modify the decision model depending on both simulation and expert reasoning, to make decision analysis and short—term production plan with the aid of expert simulation system. In this paper, a new approach cellad ESDSS was proposed by integrating DSS and expert simulation system . As a case study of ESDSS, a so called RESDSS was constructed, which is composed of seven subsystems, namely: data base subsystem, model base subsystem, method base subsystem, knowledge base subsystem, experiment base subsystem, human computer interaction subsystem, and expert simulation executing subsystem. The main results and contributions of this work are as follows:(1) A novel approach of DSS named ESDSS was proposed, which integrates DSS and ESS.

本文关于炼油生产专家仿真决策支持系统原型的研究从炼油企业优化生产管理的角度出发，以&利用仿真技术获取装置操作和环境条件的动态变化信息，依靠专家方法仿真实现决策模型的生成和修改，凭借专家仿真决策支持系统辅助高层领导者实施决策分析和制定短期生产计划&作为炼油生产短期计划决策问题的求解策略，在综合考虑决策支持系统（Decision Sup-port Systems，简称DSS）和专家仿真系统（Expert Simulation System，简称ESS）特点的同时把这两个系统结合在一起而提出&专家仿真决策支持系统（Ex-pert Simulation Decision Support System，简称ESDSS）&这一新的构思。

The use of the web to spread fears that flicking the switch on the LHC could create a Black Hole that could swallow up the Earth particularly concerned him, he said.

他说，使用互联网散布恐慌说启动LHC会生成一个可能吞噬地球的黑洞的做法让他感到忧虑。

Not a single word have I written down.

我一个字也没有写下来。