查询词典 data-base
- 与 data-base 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The model of the thesis s forecasting method is synthetical use of experience model method and mine-reserach information adding power model method of mineral resources assessment based on GIS. It use several kinds of analysis means for multi-sources data. Firstly the gold-research prospective domains of this area are forecasted through the spatial query and ana-lysis by means of GIS,based on geological and mineral information of thearea, synthesizing geochemistry anomaly information. Gridding inserting value transforms geochemistry data of sampling point of the south of Acixiarega from scattering data to grid data by means of the development of Delphi and Mapobjects, using distance reciprocal inserting value method. After deposit orientation analyse and spatial overlapping analysis by means of CIS, the gold-research prospective domains of the area are forecasted.
本文所建立的预测方法模型是基于GIS矿产资源评价方法的经验模型法及找矿信息加权模型法的综合使用,对多源数据采用多种分析手段,先以研究区1:5万区域地质资料和矿产资料为基础,综合地球化学异常资料,通过Mapgis的空间检索与分析,做出全区成矿有利区分布图;而阿次夏热嘎南部地区离散的采样点的地球化学数据,是采用面向对象编程语言Dephi与GIS控件Mapobjects为开发工具,运用距离倒数插值法进行插值网格化,从而将离散的数据转换为栅格型数据,矿床定位分析、GIS空间迭加分析,预测出该地区成矿有利区。
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Because source data is unsteadiness, the changes of data must be spread to materialized view and make it be consistency the changes of materialized view and source data. Otherwise the freshness of data in materialized view will be fall down and the authenticity and consistency of OLAP will be affected. For the maintenance problem of materialized view, an algorithm is presented and it can make the cost of materialized view recomputation be minimized.
由于源数据的不稳定性,其数据的变化必须及时传播到实体化视图中,以保持实体化视图与源数据的变化一致性,否则会降低实体化视图中数据的新鲜度,并影响联机分析处理查询结果的真实性和有效性,针对视图的维护问题,提出了实体化视图的一种维护算法,它将使视图重计算代价最小化。
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hand to restore the partition table is a relatively reliable method to restore the use of this method must first master the strategy division of the hard disk partition, partition the data records of the location, area of the recording format of data, area data of the inter-relationship between as well as the partition table of the relevant knowledge group; winhex followed by the use of software to be able to deal with access to hard data on the sector, and in accordance with the results derived to deal with the loss of the partition information, and to achieve the restoration of the partition table.
手工恢复分区表是一种比较可靠的恢复方法,使用这一方法必须首先掌握硬盘分区的划分策略、分区数据的记录位置、分区数据的记录格式、分区数据之间的相互关系以及分区表组的相关知识;其次要能够使用winhex软件,去处理访问硬盘有关扇区的数据,并根据处理结果来推导出丢失的分区信息,进而实现分区表的恢复。
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In order to obtain the reliable and accurate headway distance data, a state space model for distance data filter is established and then a new data fusion and estimation algorithm based on Kalman filter principle is developed. Its recursion formula is obtained. Taking the distance measurements of machine vision and laser radar as inputs, this fusion and estimation algorithm can output more reliable and accurate fusion data in real time.
建立了距离滤波的状态空间数学模型,提出了一种新的基于Kalman滤波原理的距离数据融合估计方法,推导出融合估计的递推公式,对来自机器视觉和激光雷达的距离数据进行融合估计,以减少距离数据的噪声,提高其可靠性与准确性。
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The paper has studied the follow questions: In the overall design on this control system, it raises data collecting and control system based on the single microcomputer, matched special use data redisplay card ad PC computer system. The single microcomputer system, special use data redisplay card and PC computer construct the data collecting and controlling system of beam pumping unit.
该论文主要从以下几个方面进行研究和设计:在控制系统总体设计方面,提出了以单片机为核心的数据采集和控制的单片机系统,配以专用数据回放卡和PC微机,三者有机结合构成整个抽油机数据采集、实时控制和数据处理系统。
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To construct a data warehouse supporting group decisions, a model of multi-data warehouse supporting group decisions was proposed based on limitation analysis of the traditional data refresh algorithm and data warehouse model.
为了构建支持群体决策的数据仓库,分析了传统数据更新算法及数据仓库模型的局限性,提出了一个支持群体决策的多数据仓库模型。
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The data-gain includes data collection, data pretreatment and the error treatment. The data structures of DEM have five kinds of structure, including dispersed point, regular network, triangle irregular network, counter and mixing structure.
数据获取包括数据采集、数据预处理与原始数据误差处理;DEM数据结构有离散点结构、规则格网结构、不规则三角网结构、等高线结构和混合结构五种。
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The key point of the thesis was system's communication. The paper offered a simple and effective communicate method which achieved data communication between computer and PLC. The paper discussed the system how to change data、transfer and rejigger parameter accurately、advert problems in communication process between computer and PLC. This method is applied and innovative. The paper described the TCP protocol and its encapsulated Winsock module and its application for data communication of remote control. User defined protocol is used for data exchanging between the client and the control server.
本文提出了一种简单有效的通信方式实现了计算机通过串口与PLC的本地数据通信,阐述在实现上位机与下位机的通信过程中,如何在上位机进行数据转换、参数正确传递和更改以及实现方法和注意的问题,该方法具有一定的实用性和创新性;基于TCP协议,使用封装组件Winsock进行实时控制的数据交换是远程控制的核心任务,对此文中首先探讨选用TCP协议和Winsock封装组件的理由,详细描述了如何通过Winsock组件进行数据通信以及自定义协议。
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The log data of Samandepe gas field in the Amu Darya Right Bank of Turkmenistan are old in logging suites, limited and inconsistent in logging items between early exploratory wells and later development wells. Based on the correlation of different log data, the suitable log data are selected from the available logging suites to build up a mathematical statistical model of artificial fitting acoustic curve. The non-linear correction of neutron and gamma ray data was performed to ensure the relative rationality and uniformity of log interpretation.
针对土库曼斯坦阿姆河右岸萨曼杰佩气田测井资料存在系列老、项目少、早期探井和后期开发井测井项目不统一的现状,通过不同测井资料问的相关分析,合理选用已有测井系列的测井资料,建立人工拟合声波曲线的统计数学模型;通过对中子伽马资料进行非线性校正,保证了测井解释评价资料的相对合理和统一。
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The module of users management expands the the range of users -to the alliance enterprise,which makes the alliance enterprise paticipate in the cooperative design by PLM. The module of right management researches the control method of functional right and the entity data right, and brings forward the functional right and the entity data right based on projection role and identity role, which realizes the right management about dynamic data and static data.
用户管理模块将用户的范围扩展到联盟企业,使得各联盟企业通过PLM可以参与协同设计,权限管理模块研究了数据对象的功能型权限和实体型权限的控制方法,同时提出了一种基于项目角色和身份角色的实体型数据权限,实现了动态数据和静态数据的权限管理。
- 推荐网络例句
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But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
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Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
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Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。