d data 中文意思是什麼

d data 解釋
數據
  • d :
  • 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...
  1. Current r amp; d of stm afm - based data storage materials

    技術的信息存儲材料研究現狀及進展
  2. Current r amp; amp; d of stm afm - based data storage materials

    技術的信息存儲材料研究現狀及進展
  3. Class cspart is a program interface provided for windchill system. windchill system can access and modify parts " parameters using this class, so the two systems can keep the integrity of data and realize information integration. two systems form b / w / d - c / s commix scheme

    Cspart類是編碼系統提供給windchill的應用程序介面，使windchill可以訪問和修改編碼系統某個零件的圖紙參數，保證了兩個系統相關零件屬性的一致，實現了信息集成。
  4. The control system included the following units : video decode unit, data format conversion unit, fpga controller, cache unit and d / a monitor. the above self - design control unit plus row and column power supply units make the whole fed driving system, thus drove the 25 inch sample and realized color video display. the 25 inch vga sample thus fabricated could display video images, and obtained its brightness 400cd / m2, contrast ratio 1000 : 1, 256 circuit gray scale

    本文介紹了fed驅動系統的工作原理，重點論述了基於fpga的vga級彩色fed新型驅動控制系統的研製，這種新型fed驅動控制系統主要包括視頻解碼電路、數據格式轉換電路、 fpga控制電路、數據緩存電路和d / a監控電路，配合后級列灰度調制單元和行掃描單元，組成完整的fed驅動系統，可以驅動25英寸vga級fed顯示屏，實現彩色視頻顯示，樣機亮度達400cd / m2 、對比度為1000 : 1 ，灰度等級為256級。
  5. Livingstone d j, manallack d t, tekto i v. data modeling with neural networks : adventages and limitations [ j ]. comput aided mol design, 1997 ( 135 ) : 11

    閻平凡，張長水.人工神經網路與模擬進化計算[ m ] .北京:清華大學出版社， 2000
  6. Based pc, d / a convertor and 2 - dimension galvanometer scanning system, laser marking control system is built. coordinate data scanned and kept in the computer are transformed into the analog signals by d / a converter, then control the galvanometer to deflexion

    基於pc 、 d / a轉換器和二維振鏡掃描系統搭建激光打標機控制系統，將存儲在主控計算機的掃描坐標點的坐標數據通過d / a轉換，將數字信號轉換成模擬信號來控制振鏡偏轉。
  7. The study results of this paper can serve the two scientific subjects of our teaching and research group as basic data calculation and elementary exploration. the two subjects are : constructing high activity - amylase genes by dna shuffling technology and studying on the evolution in vitro by mutational pcr ( with 5 - br - dutp as substitute partly ) and dna shuffling technology. - amylase ( ec 3. 2. 1. 1 ; 1, 4 - a - d - glucanohydrolase ) can catalyzes the hydrolysis of - 1, 4 - glycosidic bonds of starch from middle and liberates - maltose, - glucose and - limit dextrin stepwise

    本試驗根據genbank已公布的黃單胞菌-澱粉酶基因的核苷酸序列由引物設計軟體premierprimer5 . 0輔助設計了一對引物（ primer & primer ） ，以pbluescript ks +和puc18 / puc19質粒為載體，用常規的pcr方法從xanthomonascampestrispv . malvacearum （ smith ） dye等七株黃單胞菌（ xanthomomasspp . ）的基因組dna中克隆得到8個基因片段，分別命名為zhyf001 zhyf008 。
  8. A noncontact 3 - d position measurement system is introduced in this thesis. the system is composed of a planner array ccd detector, real time image analysis and quick data calculation system, which can survey the positional relationship between the haloid lamp objects on the emissive vehicle and the measuring system on the loading vehicle

    本文研究了一種簡單、新型的非接觸三維位置測量系統，該系統由一組ccd探測器、實時圖像處理及快速數據解算系統組成，對發射車上鹵鎢燈目標在測量坐標系中的三維坐標x 、 y 、 z值和發射車軸線相對測量坐標軸的夾角進行測量。
  9. Based on 3 - d seismic well and logging data, mainly by means of advanced seismic theories of reservoirs prediction and other corelational multidisciplinary, an extensive and indepth studying on the tight sandstone reservoir with fracture of the second part of the xujiahe formation in west sichuan depression has been carried out. a series of theoretical viewpoints and research fruition are concluded as follows :. 1 on the basis of analysis of the regional and local structure characteristics and evolution, a conclusion comes in to being : inchoate and nowadays structure traps and the match model between structure and fracturation system are the main factors in controlling the formation of effective traps

    本文綜合利用三維地震、鉆井、巖心、測井資料，採用地震儲層預測方法為主線的多學科綜合研究思路對川西坳陷上三疊統須家河組二段緻密裂縫性砂巖儲層進行了較為廣泛、深入的研究和探索，取得以下一系列理論認識和研究成果： 1 、通過區域及局部構造特徵及構造演化史分析，認為古今構造圈閉、構造與斷裂系統配置關系是控制有效圈閉形成的主要因素。
  10. In short, vector data take the simplest topological entities - points, lines, and polygons - and anchor them within a 2 - d cartesian coordinate system to describe geographical features

    簡言之，矢量數據利用最簡單的拓撲實體點、線和多邊形，並在二維笛卡爾坐標系統中固定它們來描述地理特徵。
  11. Through the study above, a refined description and modeling to flow field and water surface near the groyne in river is conducted with 2 - d and 3 - d mathematical models. the results by simulation are consistent well with experiment data

    通過上述研究，作者採用二維和三維數學模型對水槽試驗和天然河道中丁壩附近流場和水面形態進行了精細地描述和模擬，計算結果和實測結果吻合良好。
  12. For h - d data distributing over regular - grid points, a new concept " cubical matrix " " is presented, some operating rules on it are established, and a definition and expressions of tri - cubic spline function are introduced about which its unique existence theorems are proved, interpolating error is estimated, and practical algorithms to produce two kinds of boundary conditions and methods for its computation are presented

    完成的主要研究內容和成果如下：一、對規則區域上分佈的h - d數據，首次提出了立體矩陣的概念，建立了其運算規則，給出了三三次曲面的定義及表達式，證明了其存在唯一性。
  13. Applying the key technique of concurrent engineering - design for function ( dff ), design for assembly ( dfa ) and design for manufacture ( dfm ) of the method of design for " x ", the virtual design of the torque converter is accomplished in catia v5. then the model constitution and the simulation of virtual process of the torque converter is done in catia v5, including the model constitution and the simulation of 5 - aixe nc virtual process of the vane, the model constitution ( material : pvc ) of the idler pulley rapid prototyping ( rp ) and the virtual assembly and the motion simulation of the torque converter, etc. 3 - d data exchange between various cad systems is realized by using step standard. the lever of classing the character model of the torque converter is given

    應用并行工程的關鍵技術之一? ?面向產品全生命周期的設計dfx中面向功能的設計dff 、面向裝配的設計dfa和面向製造的設計dfm的方法，在catiav5中完成液力變矩器虛擬設計；在catiav5中對液力變矩器進行虛擬加工建模和模擬，包括液力變矩器導輪葉片五軸數控加工刀軌建模與模擬、導輪快速成型rp建模（ pvc材料） 、液力變矩器虛擬裝配和運動模擬等；採用step標準實現多cad系統之間三維數據交換，提出液力變矩器特徵模型的分級標準並對三維模型數據進行分級管理，制定相應的權限等級以規范合作廠家的產品數據管理層次。
  14. First in chapter 1, we introduce the background of the 3 - d digital terrain map, discuss the resolution of the data source of the 3 - d digital map and propose an idea that retrieving 3 - d data with b - spline surface interpolation based on the contour line distilled from paper map

    首先在第一章中介紹了三維電子地形圖系統的研製背景，簡要介紹了解決目前三維顯示數據來源的方法，提出了從紙地圖的等高線提取三維數據的思路，並對整個方案的實現框架作了簡要的介紹。
  15. Its display model supports interactive 3 - d, data fusion, multiple data views, direct manipulation, collaboration, and virtual reality

    它的顯示模型支持互動式3 - d 、數據溶合、多個數據視圖、直接操作、協作和虛擬現實。
  16. In this paper, the concepts, the historical background, the importance and current application of scientific computing and visualization of scientific computing are introduced and the visualization of computational detonation mechanics is specially expounded. based on the sumarization of the visualization software visc2d and visc3d directing at the mmic ( multi _ material in cell ), the key point of the improvement and the research contents are listed. based on the basic visualization reference model and the data file format of mmic, the file format of vector data is defined. the 2 - d data field visualization technology is described in detail. include the visualization of scalar field and vector field. the weak points of the visc2d software is overcome, and we propose the full - frame coloring mapping method and the visualization of the vector data using the clic ( coloring _ noise line integral convolution ). in addition, the method to draw and display shock wave by edge probing operator is introduced. in the design of the program, in order to overcome the shortcoming of visc2d with sdi ( single document interface ), the software vsv ( visualization of scalar and vector ) with mdi ( multi document interface ) is designed. compared with visc2d, the advantage of vsv includes : ( l ) vsv is a mdi applied software which can be used to view various kind of data, ( 2 ) vsv resolves the flash during displaying moving images which are produed by full - frame coloring method used to the visualization of scalar fields, and ( 3 ) vsv can be used to visualize vector field such as velocity. at last, the visualization of the output data from mmic in explosion and shock is realized by vsv

    首先簡要介紹了科學計算與科學計算可視化的概念、歷史背景、意義及應用現狀，重點說明了計算爆炸力學中的可視化問題，在總結多流體網格程序mmic的可視化軟體visc2d和visc3d的基礎上提出了改進要點和本文的研究內容。在介紹可視化基本參考模型和mmic程序的數據文件結構的基礎上，給出了矢量數據文件的結構，詳細闡述了二維數據場的可視化技術，包括標量場和矢量場的可視化，針對原visc2d軟體的不足，給出了改進方法，提出了全幀著色映射方法和用於矢量數據可視化的基於噪聲著色的線積分卷積方法，以及提出了利用邊緣檢測運算元提取和顯示沖擊波的方法。在程序設計上，針對原visc2d軟體只適用於單文檔窗口的缺點，本文利用多文檔mdi窗口，研製了標量場與矢量場的可視化軟體vsv （ visualizationofscalarandvector ） 。
  17. The measure methods have developed from the impact method to automatic - manual measure method that is central made of analog integrator and the computer automation measurement system that is central made of analog integrator, a / d > data acquisition

    對于磁化特性的測量已經由經典的沖擊電流計法發展到以模擬電子積分器為主要單元的半自動測量系統和以模擬電子積分、 a d轉換、數據採集為主要單元的計算機控制的自動測量系統。
  18. Methods : spiral ct ( sct ) scanning technology, digital image transfer and transcription were used to obtain the initial 3 - d data of the upper central incisor

    方法：採用螺旋ct掃描、數字影像傳輸與轉錄方法，獲得中切牙三維形態的原始數據。
  19. You can add database storage in a 3 - d data format optimized for handling by postgresql - known as the

    您可以添加三維數據格式的數據庫存儲，該格式針對postgresql處理而優化即
  20. The fifth chapter measures the impact of ris to the regional economy from three aspects. first, for the support capacity, the article give us the support capacity model based on changeable weight theory, and evaluate the support capacity of hebei province ris to hebei province economy based on the total social r & d data, the increase social r & d data and some dada reflect the investment and output. second, the article use the dea s ccr model evaluate the efficiency of hebei province ris to hebei province economy and compare the result to the fourth chapter, then give some political advice

    第五章從三個方面測度了ris對區域經濟的作用首先從支持力角度引入基於變權理論的支持力指數模型，利用全社會r & d總量指標和增量指標以及一些反映投入產出的指標對河北省ris對河北經濟的支持力進行了測度然後採用dea方法的ccr模型對河北省ris對河北經濟的有效性進行了分析評價，並將結果與第四章進行比較，提出了政策建議最後採用索洛余值法對河北省區域創新系統全社會科技投入對河北經濟增長的貢獻進行了精確測量。
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