查询词典 base data
- 与 base data 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 tradition data base Management Information System can not be made full use of, the analytical data base is hit by build-up large amount of data , the data excavates with data storehouse technology to be able to resolve this one problem very good.
传统的数据库管理信息系统不能够很好地利用、分析数据库中积累的大量数据,数据挖掘与数据仓库技术可以很好地解决这一问题。
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Entireness , safety for guarantee data base, the data base design must , develop strictly according to the data base to come to design that project principle.
为了保证数据库的完整、安全,数据库的设计必须严格按照数据库工程原理来设计、开发。
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Exploitation process uses the ASP ADO data base to visit the interface technology linking the ACCESS data base , the feasible data has very high physics independent character and logic independent character concretely.
具体开发过程使用ASP的ADO数据库访问接口技术连接ACCESS数据库,使得数据具有很高的物理独立性和逻辑独立性。问题补充:讨厌金山词霸,哪位英语高手现翻一下,谢谢
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This invention relates to MIMO test method in a multi-user MIMO radio communication system including: estimating the channel matrixes of all users at the base station, computing an orthogonal projecting matrix M of the interference matrix of each user and transmitting M to each user periodically, receiving data sent by the base station at the user end and getting the orthogonal projecting matrix M from the received data, transforming the MIMO test of a desired user to the minimum value of a K-element secondary convex function, in which, K expresses the number of sending antennas and getting estimation of the test data by a ball test method.
一种多用户多输入多输出无线通信系统中的MIMO检测方法,包括步骤:在基站估计所有用户的信道矩阵;计算每个用户的干扰用户矩阵的正交投影矩阵M,并将每个用户的正交投影矩阵M定期发送给每个用户;在用户端接收基站发送的数据,并从接收的数据中得到正交投影矩阵M;利用正交投影矩阵M将期望用户的MIMO检测转化为K元二次凸函数的极小值,其中K表示对期望用户而言,发送天线的个数;利用球检测的方法,得到检测数据的估计。
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This invention provides an on-line analysis method and system for combined gas and steam cycle power station's efficiency, which comprises an on-site data-collecting unit, used to check the sub-devices state parameter in power station; a data base server linked to on-site data-collecting unit to stored the state parameter provided by data-collecting unit; modular arithmetic server used to calculate the gross operation efficiency of power station based on the data base state parameter and the influence degree caused by sub-devices property to the gross operation efficiency; client device to receive command input by clients and output the calculating result by modular arithmetic server.
本发明提供一种燃气―蒸汽联合循环发电站运行效率的在线解析方法和系统,在线解析系统包括:现场数据采集单元,用于测量电站各分设备的状态参数;与现场数据采集单元相连的数据库服务器,用于存储现场数据采集单元测量得到的状态参数;模型运算服务器,其根据从数据库提取的状态参数并计算电站的总运行效率和当前状态下电站各分设备性能对电站总运行效率的影响程度;客户机,其接收用户输入的命令并输出模型运算服务器的计算结果;网络,其将数据库、模型运算服务器和客户机连接在一起。
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This thesis expatiates on the theory and architecture and primary content of Reusable Design technology and Reusable Process Design technology, study the feasibility and practicability of some important technology about Reusable Process Design, adopt a special knowledge representation to describe reusable process design information and make use of "FenHua "to realize knowledge acquisition about fuzzy knowledge.Craft database system is the mostly important support of CAPP (Computer Aided Process Planning) system. To some extent, the essence of process design is a process that craft data is visited, used, dealt with and generated. This thesis expatiates on data base design technology. Based on the detailed analysis of the craft data"s characteristic and sort and the craft database"s component part, the author build craft database through detailed conceptual design and logical design and physical design for data base.the application and research of Web database technology becomes increasingly wide, which can make a close combination between Database technology and Web technology.
本文阐述了基于知识复用的可复用设计技术与可复用工艺设计技术的理论、体系结构与主要研究内容,研究了可复用工艺设计中的若干关键技术的可行性、实用性,采用了三表知识表示来描述工艺知识及利用"分划"的方法对灰色知识进行知识获取;工艺数据库系统是计算机辅助工艺设计系统的重要支撑系统,从某种程度将,工艺设计的实质就是对工艺数据库中工艺数据的访问、调用、处理和生成新的数据的过程,本文阐述了数据库系统设计技术,在详细分析工艺数据的特点、分类以及工艺数据库的数据库组成的基础上,通过对工艺数据库概念结构、逻辑结构、物理结构等几个方面的详细的分析与设计,建立了系统工艺数据库; Web数据库将数据库技术和Web技术很好的融合在一起,其应用研究日益广泛。
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1 The basic components Base station, jurisdiction center, sea area center (1) base station Function receiving ship borne data and broadcast data under the control of the jurisdiction center Configuration Transceiver, base station controllers and network equipment, constituted a internal LAN.
1.1基本组成基站、辖区中心、海区中心。。(1)基站功能在辖区中心的控制下接收船载数据和播发数据。配置收发器、基站控制器和网络设备,内部形成局域网。
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Thirdly, it analyzes and studies in detail Surpac mechanism and the relevant concepts on constructing the model of mineral deposits and mining engineering systems according to the modeling procedure and the actual conditions of Jinchuan"s mines. Based on these:Lit points out some differences between the western countries and China in the practice of the geological data record, explores the inputting data on computers performed by more people at the same time and the method to improve constructing the data-base and finished the data-base of Jinchuan mineral deposits;2.It puts forward the steps and flow chart to construct the solid model and brings forward the scheme of "first individual then whole to set up Jinchuan mineral deposits geological model, summarizes some experiences for constructing the complicated geological ore body of the high accuracy: add control lines, add auxiliary demarcation lines +control lines, the operation of intersection, cross and incorporation between solid bodies and plane and section combination. The above-mentioned methods applied to construct the mineral deposits solid models of four mine areas in Jinchuan; 3.lt studies and presents the detailed flow chart of constructing block and grade model, analyses the workable scheme in setting up the block and grade model of main ore body for Jinchuan mineral deposits and also sets it up.
接着,按建模流程并结合公司矿山实情,详细研究、分析了Surpac构造矿床模型和采矿工程系统模型的机理、有关概念,在此基础上:(1)指出了西方国家与我国在地质数据记录习惯方面存在的一些差异,探索出多人多机同时录入、提高建库效率的方法,建立了金川矿床地质数据库;(2)研究并提出了构造实体模型的步骤和流程图及&先分后整&建立金川矿床地质体实体模型方案,总结出建立高精度复杂地质体模型几点经验:添加控制线法、添加辅助分界线+控制线法、实体间的交、叉、并运算法及平剖面图联合法,建立了金川矿床四个矿区主矿体的实体模型;(3)研究并提出了建立块模型、品位模型详细流程图,分析了建立金川矿床主矿体块模型和品位模型的可行方案,建立了金川矿床主矿体的块模型和品位模型。
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Main points of the thesis are as follows:(1) The main function models and information relations between these models in the CAPP system in the integrated CAD/CAM project are explained, a new process plan design method is mentioned based on analyses of process plan design. This method is based on the process plan prototype, and develops the prototype little by little until the perfect process plan is completed, the prospect of this method is discussed;(2) The feature abstracting rules and methods are studied, a feature coding system is developed based on GT, all the defined feature models are described by the mathematical methods;(3) The integrated method of CAD/CAPP based on features is mentioned, this method defines a feature exchanging model, and develops an interface software to exchange design data into technology data base, this technology data base includes the design and technology information of the parts;(4) The process plan reasoning method based on features is created, this method uses Mycin algorithm to solve the reasoning of the feature process plan. A process plan making system is developed. In this system part process plan is made by the semi-intelligent method, this method uses the feature reasoning, feature process chain searching and man-computer talking together;(5) The main structure of the HOPE system is introduced, a shaft drawing and its process plan made by this system are shown, the data process problem in process drawing making is also discussed;(6) A new method of describing process rule is introduced, this method uses IfThen rules and neural nets weight values together to describe process rules, the BP algorithm is adopted in this method;(7) The optimal machining sequence problem of the process steps on the same fixturing is discussed, optimal algorithms SA is applied to solve this problem, the result shows that this method is more efficient than the traditional method;(8) All jobs in the thesis are summarized. In order to carry out the research in the future, some rational proposals are given.
全文论述的内容主要有下列几个方面:(1)较为系统地阐述了CAD/CAM一体化工程项目中CAPP系统的主要功能模块及其信息流程,在分析工艺设计过程的基础上,提出了基于特征原型的渐进式工艺设计方法,并探讨了该方法的应用前景;(2)研究了零件特征提取的原则和方法,在成组技术的基础上,开发了一套基于特征的分类编码系统,并在提取零件特征的基础上,定义了零件特征的数据模型,开发了基于轴类零件特征的参数化设计系统;(3)研究了基于特征的CAD/CAPP集成的方法,通过定义零件特征数据模型的存储结构,开发了将设计数据转换到工艺数据库中的接口程序,为后续的CAPP系统提供必要的零件形状和工艺信息;(4)研究了基于特征的工艺推理方法,将Mycin算法应用到工艺决策中,开发了基于特征的工艺推理及工艺方案生成系统,在系统中综合运用特征推理、特征加工工艺链查询及人机对话相结合的半智能化方法确定零件加工工艺;(5)介绍了整个HOPE系统的总体结构,通过运行HOPE系统绘出了一轴类零件的零件图,并生成了该零件的加工工艺方案,初步探讨了基于特征的工序图生成技术中数据处理问题;(6)研究了工艺设计过程中知识如何有效表示的问题,提出了将显式的IF-THEN规则表示与隐式神经网络权值表示相结合的工艺知识表示方法,并利用BP算法进行了工艺知识表示的初步研究;(7)研究了工艺设计过程中同一安装下工步优化排序问题,利用神经网络中基于模拟退火的理论来解决该工步优化排序问题,实践证明该方法较传统的算法具有更高的效率;(8)总结了本文所进行的研究工作,为今后进一步开展工作提出了较为合理的建议。
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The four models were analyzed and normalized. We studied the procedure and method of building forest fire model base. Model base was build by object-oriented method based on category of model. Forest fire spreading models algorithm were implemented. We designed model dictionary base, model file base, and model knowledge base. Model base administration and maintenance functions were developed and implemented model file management, parameter management and knowledge management. The problems of interface between of model base and database were solved by means of model data control files. Model base ensured the availability of supporting for forest fire model suitability selection technology and forest fire model self-adapting updating technology.(3) Based on BP artificial neural network, we designed a frame construction of forest fire model selection of suitability. Forest fire model selection knowledge was produced through BP artificial neural network.
2建立了林火模型库建设的林火蔓延模型评价标准,根据模型评价标准和试验区实际情况,在42个林火蔓延模型中选择了目前最具有影响力和最具有典型代表性的Rothermel模型、王正非模型、加拿大模型和澳大利亚模型进行了解析和归一化处理;对林火模型库的建库过程和方法进行了研究,在林火模型分类基础上,采用面向对象的模型库表示方法建立了林火模型库;实现了林火蔓延模型算法,设计了模型字典库、模型文件库和模型知识库;开发了模型库管理与维护功能,实现了模型的文件管理、参数管理和知识管理;通过模型数据管理文件解决了模型库与数据库之间接口问题;实现了林火模型库对林火模型适宜性选择和林火模型自适应修正技术的有效支持。
- 推荐网络例句
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This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
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Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。