numerical data base 中文意思是什麼
numerical data base
解釋
數值數據庫-
First, in order to verify the correct of this retrieval month, by using the data of three - dimensional wind field, raininess field and temperature field that are output by mm5 numerical simulation, we climate the radial velocity field and echo intention field in the in - phase observation area of dual - doppler radar, then, on the base of the upwards retrieval theory and using the radial velocity field and echo intention field in the in - phase observation area of dual - doppler radar, we retrieve the atmospheric three - dimensional wind field
首先，為檢驗此種反演方法的可靠性，我們使用mm5數值模式輸出的三維風場、雨強場、溫度場等數據，分別模擬生成兩部雷達同步觀測區的徑向速度場和回波強度場，然後根據以上的反演理論利用模擬的雙多普勒天氣雷達觀測到的徑向速度場和回波強度場反演出大氣三維風場。 -
Step - nc ( iso14649 ) expends step into the area of cnc and renews the data interface between cax and cnc, which helps cnc system to use data models of products in three dimensions according with step directly in order to output nc programs then control machines directly, eliminate choke points of the information stream between cax, such as cad, capp, cam, cae, ped, erp and so on, connect the design product information and manufacturing product information on the base of step in the form of object - orientation, and change the traditional movement and switch control - orientation numerical programs into object - orientation programs
Step - nc （ iso14649 ）將step擴展至cnc領域，重新規定了cax與cnc之間的介面，其目的是: cnc系統能夠直接使用符合step標準的cad三維產品數據模型，直接產生加工程序來控制機床;在step的基礎上以面向對象的形式將產品的設計信息與製造信息聯系起來，消除cax （如cad 、 capp 、 cam 、 cae 、 ped 、 erp等）與數控系統之間信息流瓶頸;將傳統的面向運動和開關控制的數控程序改變為直接面向加工對象的數控程序。 -
In this part, the first work is pretreatment of a numerical model, including creating calculating grids automatically, improvement of the linear boundary technique and so on. the second work is to estimate the siltation of a basin or channel by liu ' s equation. the third work is to build an edbms ( engineering data base management system ) for the result of mathematical model
其中主要的工作是：其中主要的工作一是數學模型的前處理，計算網格自動生成，線邊界法的優化；二是應用劉家駒公式在長江口深水航道治理工程地理信息系統的支持下實現港池、航槽開挖的實時回淤估算；三是將計算成果形成gis管理和支持下的工程數據庫系統（ engineeringdatabasemanagementsystem ） ，同時嘗試解決時間序列數據如地形沖淤變化，潮位、流速過程的分析、查詢和顯示問題，並實現實時、互動的動態演示及三維可視化。 -
Base on the results of the numerical analysis and utilization of the actual development data of yangling agricultural high - tech industries demonstration zone, this paper testifies the correctness of our analysis
就數理分析結果，以楊凌國家農業高新技術產業示範區的實際發展為例，運用其相關數據進行經驗檢驗。 -
On the basis of finite element numerical simulation technology and s - n curve data base of welded joint, the course of fatigue test of physical prototype was simulated with computer and the fatigue life of welded structure was predicted, so as to let the development of anti - fatigue design becoming possible in the designing stage of product
基於有限元數值模擬技術及焊接接頭s - n曲線數據庫，在計算機中模擬物理樣機的疲勞試驗過程，預測焊接結構的疲勞壽命，使產品在設計階段開展抗疲勞設計成為可能。 -
On the base of summarizing the results, the law of vertical turbulent mixing and transportation in the natural river is researched and applied in numerical model through the theoretical derivation combined with analysis of the data of measurement in this dissertation
本文在總結分析前人研究成果的基礎上，通過理論推導、現場資料分析和數值模擬相結合的方法，著重研究天然河流中物質的垂向紊動混合、輸移的基本規律，並將這些規律運用於數學模型的數值計算中。 -
In this paper, oil reservoir fine description has been applied, and by study of reservoir, structure and fluid features, fluid units have been divided and new geology models have been rebuilt. then logging data have been reinterpreted and reprocessed and numerical modeling results have been used. on base of these work, the residual oil distribution feature and regulation in the fluvial facies sandstone in gudao oil field south region has been scientifically studied
本文主要運用油藏精細描述技術，通過儲層、構造、流體研究，劃分出流體流動單元，重建新的地質模型，在此基礎上對測井資料進行了重新解釋和處理，並運用數值模擬研究結果，對孤島油田南區河流相砂巖油藏剩餘油分佈特徵和分佈規律進行了科學研究。 -
Secondly, the temperature distribution in rib - tube heat exchanger in the course of heat transfer is programed and simulated using apdl language of fem software ansys, and the average convection coefficient of both sides is obtained. the rib - tubes with different structure are also simulated and optimized on the base of the calculated results, the relationship between structure and the average convection coefficient of both sides is summrized. the rib - tube structure is optimized using apdl. finally, combines numerical simulation with experimental research, and results of numerical simulation are found to be close to the experimental data
利用ansys有限元程序對翅片管換熱器的換熱過程進行數值模擬，確定了換熱過程中翅片管的溫度場和熱流量梯度分佈狀況，對翅片管換熱器的多組分流場進行計算，給出了逆流和順流兩種情形下翅片管結構參數對換熱效果的影響規律，並利用ansys提供的優化技術編寫程序對翅片管進行結構優化設計，為其今後在工業中的設計及使用提供了重要依據。 -
It discusses that xml - based process information exchanges with other typical exchangeable objects, for example step, relational data base and numerical control codes
針對工藝信息在交換中的典型交換對象，分別論述了基於xml的工藝信息同step 、關系數據庫、 nc指令等的交換技術。 -
Base on the experimental data some damping models such as conic model, inverse hyperbola model, exponent model, inverse exponent model, dislocation - induced damping model are put forward, and the results between numerical calculations base on above models and experiments are studied contrastively
給出了二次曲線模型、反雙曲線模型、指數模型、反指數模型、位錯阻尼模型等阻尼模型並將按這些模型進行數值計算所得結果和實驗結果進行了對比研究。 -
These equations are verified by the measure data in nantong section in yangtse river, and the results are satisfied. on the base of the vertical mixing law, the part depth homogeneous mixing 2d numerical model has been developed, and it was used in the concentration field calculation. by use of the measure data of rbodemine - b tracer in yangtse river estuary, the comparison of value calculated with data measured has been made
該模型去掉了傳統的全場水深平均二維模型污染源一出排放口便在水深方向上均勻混合的假設，而將計算水域劃分為污染物濃度在垂向上達到部分水深均勻混合及全水深均勻混合兩個區域，並將上述有關部分水深均勻混合及全水深均勻混合的基本規律的研究成果應用該模型中。 -
Three base isolation reinforced concrete buildings representing low - rise, mid - rise, and mid - high - rise buildings are modeled to perform structural simulations by utilizing sap2000 dynamic analysis. in which the isolator - seismic layer adopt some standard interlayer rubber isolator. numerical deformations and drifts are compared with those obtained from test data and experienced data to develop seismic design performence level of nonstructural elements. this research does not deal with structural strength or design, but rather deals with structural deformations and drifts that will have an impact on the performance of the architectural
本文設計了三個基礎隔震的鋼筋混凝土框架結構，分別代表低、中、高層建築，其中隔震層採用標準件的夾層橡膠隔震墊，通過建立三維分析模型，運用sap2000軟體對結構進行非線性時程分析，分析結果與前人研究試驗結果分析對比，提出了非結構構件的抗震性能目標。
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