relation data base 中文意思是什麼

relation data base 解釋
關系數據庫
  • relation : n 1 說話，敘述，報告；故事。2 關系，聯系；〈pl 〉（利害）關系，交情；〈pl 〉國際關系。3 親戚關系...
  • data : n 1 資料，材料〈此詞系 datum 的復數。但 datum 罕用，一般即以 data 作為集合詞，在口語中往往用單數...
  • base : n 1 基底，基，根基，底座；底層，底子；（紀念碑等的）基址；（山）麓。2 【軍事】基地，根據地。3 根...
  1. Financial structure selection according to financial distress : on the base of trade - off theory, the article studies the relation between financial distress and financial structure - - - - discussing how to make a reasonable financial structure to prevent a financial distress. finally on the base of gregoradrade. s latent period criterion, demonstrate the article. s result jointly the real data in the chinese capital market

    在財務危機與融資結構選擇的研究中：在權衡理論的基礎上研究了財務危機與企業融資結構之間的關系? ?分析了企業如何確定合理的融資結構，以預防財務危機的發生，最後以gregoradrade的潛伏期判據為基礎，並結合中國資本市場的實際數據對上述研究結果進行了實證分析。
  2. The third generation of scada, based on the technology of distributing computer net and relation data base, could realize the large - scale internet connection, which is currently applied in data collection, surveillance control and processing control in the fields of electric power system, water supply system, petroleum and chemical industry etc. the fourth generation of scada would adopt the internet technology, object oriented technology, neural network as well as java technology as its main development tendency, aiming at enlarging the integration of scada and other systems, which could finally meet the needs of business management and integrated security economic circulation

    現在的基於分散式計算機網路以及關系數據庫技術的能夠實現大范圍聯網的第三代scada系統被廣泛應用於電力系統、給水系統、石油、化工等領域的數據採集與監視控制以及過程式控制制等諸多領域。第四代scada系統的主要發展趨勢是採用internet技術、面向對象技術、神經網路技術以及java技術等技術，繼續擴大scada系統與其它系統的集成，綜合安全經濟運行以及商業化運營的需要。
  3. 4. achieved the high - speed colliding experiment of landslide for the first time, the paper studies the volume distributing ruler of different velocity segment after collide, fits the experiment data via extreme function, obtains the value range of the shape parameter, thereby gets the distributing function of all part of landslide after collide. on the base of above, the paper studies the accelerating effect of partial rock - mass because of colliding, and acquires the relation between accelerating volume and overall volume, and colliding velocity

    （ 4 ）首次進行了滑坡巖體的高速碰撞模型實驗，研究了碰撞解體后不同速度段巖體體積的分佈規律，並應用峰值extreme函數對實驗結果進行了數據擬合，確定出了各形狀參數的取值范圍，從而得到了滑坡巖體高速碰撞后不同塊體的分佈函數，並在此基礎上研究了滑坡巖體碰撞後部分巖體的加速運西南交通大學博士研究生學位論文第2頁動效應，得出了獲得加速的巖體比例與滑坡總體積及碰撞速度的關系。
  4. This text completely and systematically studies the status and the development of the pyrolysis and the fluidization of biomass, which distill the bio - oil in the domestic and international area, as well as the existing problems. this thesis primarily include following aspects : ( l ), by experimenting and measuring the energy ( heat value ) and the content of c, h, n chemical element of right 20 kinds of common biomass, on the base of the experimental result, and respectively established the biomass energy predict experiment formula with the element of h and c is from change, and passed the ro. os examination, which provides the basis and convenience for flash pyrolysis fluidization device energy to convert the rate to compute with biomass energy utilization calculation ; ( 2 ), proceeded the tg and dtg experimentation equal velocity ( 10 ? / min, 20 ? / min, 40 ? / min, 60 ? / min ) heating and constant temperature heating by studying on eight kinds of biomass samples, according to the experimental data and arrhenius formula, we established the dynamics model of pyrolysis of, then, using the goast - redfern and p function, we also solved the dynamics parameters and analyze out every kind of biomass ' s frequency factor and parameters of activation energy, and established the every kind of dynamics model of pyrolysis of biomass, all of these provide the theories and basis to make sure the reactor ' s flash pyrolysis work temperature scope design and the describing of pyrolysis reactor dynamics ; ( 3 ), in order to study and ascertain the process of heat completely getting to pyrolysis time of varied size biomass particles, we observed and measured the ratio of length and diameter ( l / d ) with the varied biomass through electron microscope, we concluded the l / d ratios usually is from 5. 0 to 6. 0, the average is 5. 3 ; ( 4 ), we studied the process of biomass transiting and the theory of complete pyrolysis time with the theory of complicated heat field, we got the time ( t ) of the varied size biomass particles arriving to complete pyrolysis, and we knew that the complete pyrolysis time and the time which get to the biggest production ratio are identical, all of these studies provide the theory base for design and forecasting the flash pyrolysis reactor solid state resort time ; ( 5 ), according to the above experiment result, synthesize to make use of the engineering the mechanics, engineering the material, machine the design to learn the principle, deduce, establish the theory of rotation cone flash pyrolysis reactor material resort time ( t ) and reasonable rotation velocity ( or frequency ) relation theory ; and ( 6 ), we gave the reactor ' s smallest cone angle certain, reactor cone wall strength design theory, the reactor production ability theory, the power design method and the critical rotation velocity theory

    本文較全面、系統地綜述了國內外生物質熱解液化制取生物燃油技術研究發展現狀及存在的問題，主要研究內容有： （ 1 ）實驗、測定了20種常見生物質的能量（發熱量）和c 、 h 、 n元素含量，根據實驗結果分別建立了以h和c為自變量的生物質能量預測經驗公式，並通過r _ （ 0 . 05 ）檢驗；為閃速熱解液化裝置能量轉化率計算和生物質能量利用率計算提供了依據和方便； （ 2 ）選擇了8種生物質試樣作了等加熱速率（ 10 min 、 20 min 、 40 min 、 60 min ）和恆溫加熱的tg和dtg實驗，根據實驗數據和阿倫尼烏斯公式建立了生物質熱解反應動力學微分方程，並採用goast - redfem積分法和p函數對其動力學參數進行了求解，解析出各種生物質的頻率因子和活化能參數，進而建立了各種生物質的熱解動力學模型，為科學確定反應器的閃速熱解工作溫度范圍及熱解反應動力學描述，提供了理論和依據； （ 3 ）為研究和確定不同尺度的生物質顆粒中心達到全熱解的時間，在體視顯微鏡下對不同粒度的生物質顆粒的長徑比進行了實驗觀察和測定，得出生物質的長徑比（ l d ）一般在5 . 0 6 . 0之間，平均為5 . 3的結果； （ 4 ）採用復雜溫度場傳熱學理論對生物質傳熱過程及充分熱解時間理論進行了研究，解析推導出了不同尺寸生物質顆粒中心溫度達到充分熱解溫度的時間（ t ） ，得出了理論推導的充分熱解時間與最大產油率的熱解時間相一致的結果，為閃速熱解反應器固相滯留時間設計和預測提供了理論依據； （ 5 ）根據上述實驗結果，綜合運用工程力學、工程材料、機械設計學原理，推導、建立了轉錐式閃速熱解反應器物料滯留時間（ ）與轉速（或頻率）合理匹配理論； （ 6 ）提出了轉錐式閃速熱解反應器的最小錐角設計、錐壁強度設計、生產能力設計理論和功率計算方法及臨界轉速理論等。
  5. The system design includes information model, function design and dada - base logical relation. the information model is established by entity - relation method, and the e - r picture is ploted, and the in - out diagram is gived out ; the fuction designed is established by idef0 method, the subsystems are designed according to the model in detail, we give out the explaining document and explain the calculation method for the model ; we design the data - base logical relation by the above models, decide the distributing and partition the relation diagram of the data - base, then define the logical structure of the diagrams

    其中信息建模採用實體-聯系的方法建立系統的信息模型，並用idef1x圖表示出該信息模型，同時給出電泵物資管理系統輸入輸出信息表；功能設計用idef _ 0方法建立電泵物資管理系統分系統功能模型，參照功能模型對內部各子系統進行詳細設計，給出分系統功能模塊的詳細說明書及相應功能演算法描述；數據庫邏輯設計依據系統分析結果、信息模型及功能模型，確定電泵物資管理系統數據庫分佈，劃分數據庫內部關系表，定義表的具體邏輯結構。
  6. On the base of so, this paper puts into effect the grey forecasting, grey relation forecasting and grey clustering evaluating according to the data of jiangsu province, gives the detailed forecasting values and evaluating analysis, and then presents the science and technology competition strategy of jiangsu province

    在此基礎上，結合江蘇省的具體數據，進行了灰色預測、灰色關聯預測以及灰色聚類評價，給出了具體的預測值和評價分析，進而提出江蘇省的科技競爭對策。
  7. On the base of current spatial data structure, management technology of gis is discussed in the second chapter. using serialized file organizes graph data, and using relation database manage property data and linking data of graph and property data

    第二章在現有gis空間數據組織及空間數據結構基礎上，探討了gis數據管理方法；即圖形數據由序列化的文件管理，屬性數據及圖形和屬性數據的連接數據採用關系數據庫管理。
  8. On the base of extend rough set theory, this paper put forward the improved data mining algorithm with priority attributes based on the priority relation. therefore, the classification precision of basic rough set and rough set with priority attributes reached unification and the classification rules by this model in the section are more curtail and rational. 4

    論文在粗糙集拓廣理論的基礎上，利用屬性的有序特性即優先二元關系，提出有序屬性的數據挖掘改進演算法，使基本粗糙集和帶有準則的粗糙集在挖掘分類精度上達到統一，且挖掘出的規則簡練、更具合理性和綜合性。
  9. In a relational data base, a part of a relation that identifiers an entity and its attributes

    關系數據庫中，標識一個實體及其屬性的關系的一部分。
  10. Then, make a further study on the basis of the theory of relational data base ( rdb ) and oriented - object relational data base ( oordb ) : discuss the corresponding relation between uml modeling technology and rdb and oordb, and the cases of oordb are modeled by uml modeling technology

    然後在基於關系數據庫、面向對象-關系數據庫的理論基礎上作更進一步的研究：討論了uml建模技術與關系數據庫及面向對象-關系數據庫的對應關系，並利用uml建模技術對面向對象-關系數據庫進行實例建模。
  11. In a relation data base, the number of tuples in a relation

    關系數據庫中，一個關系的元組數目。
  12. The characteristics and the afection of scada is studied in this thesis. the develepment and actuality of scada data base systems are studied, too. by the theory of data base, the author reserches the design theory for relation data base. by a direct method, the author devises a relation data base for scada

    本文分析了scada系統的特點及其對電力系統產生的影響，討論了scada系統數據庫的發展及現狀。在分析數據庫技術的基礎上，對關系型數據庫的設計理論進行研究。依據直觀設計法對scada系統歷史數據庫結構進行設計。
  13. The proposition of the data warehouse is taking development at full speed of relation data base, undertaking the parallel processing of and distributed technology as foundation, solve possession a large amount of data but useful information poor ( data rich - information poor ) comprehensive solution that information technology exist in development online analysis processing and go on technology that analyses to multidimensional data, from analyses it way obtain analysis datum of aid decision that user need from various visual angles

    數據倉庫的提出是以關系數據庫、并行處理和分散式技術的飛速發展為基礎的，是解決信息技術在發展中存在的擁有大量數據但有用信息貧乏（ datarich - informationpoor ）的綜合解決方案。聯機分析處理是對多維數據進行分析的技術，它從多視角分析途徑獲取用戶所需的輔助決策的分析數據。
  14. At present, people are faced with proliferate data which provide favorable conditions for establishes of data warehouse. at present, data base management system can succeed in realizing record modification and query. with the rapid increase of data, query and stat ca n ' t meet practical need and find relation of data so that : knowledge is lacked

    與日趨成熟的數據管理技術與軟體工具相比，人們所依賴的數據分析工具功能，卻無法有效地為決策者提供其決策支持所需要的相關知識，從而形成了一種「豐富的數據，貧乏的知識」之獨特的現象，人們迫切需要有新的有效手段對這些數據進行分析，數據挖掘方法就是為滿足這種需求而產生並迅速發展起來的。
  15. We have a further study to the base of dynamic cost control the dynamic control process, strengthen the research and use of the network planning technique, connect the time data with the cost under the working day ? ost linear relation based on the cmp and gert

    本文將現代動態控制理論引入裝飾施工項目成本控制，對成本動態控制的實現基礎、動態控制過程進行了深入探討，加強網路計劃技術的研究與應用，把時間參數與成本緊密聯系在一起。
  16. This paper also makes a thorough research into data transformation techniques based on xml and integration between xml and relation database, give a method of data input and export base on xml

    本文還研究了xml與關系數據庫的集成和基於xml的數據導入導出相關技術，提出了數據的xml導入導出實現方法。
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