相位曲面 的英文怎麼說

中文拼音 [xiāngwèiqūmiàn]
相位曲面 英文
phase surface
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 位 : Ⅰ名詞1 （所在或所佔的地方） place; location 2 （職位; 地位） position; post; status 3 （特指皇帝...
  • 曲 : 曲名詞1 （一種韻文形式） qu a type of verse for singing which emerged in the southern song and ji...
  • 面 : Ⅰ名詞1 （頭的前部; 臉） face 2 （物體的表面） surface; top 3 （外露的一層或正面） outside; the ri...
  • 相位 : phase position; phase
  1. Because traditional epistasis measure methods can only reflect the extent of interaction between all genes in the chromosome, we used correlation length analysis and epistasis measures on the fitness landscapes of schemata to test the extent of interdependence between some certain gene loci in study

    針對傳統的測試基因關聯的方法只能給出染色體中所有基因位的整體關聯程度的情況，通過在模式適應值曲面上分別進行相關長度測試和基因關聯測試，以研究染色體中一些特定位之間的基因關聯程度。
  2. On the ground of educative theory, this paper exposits connotation and characteristic of project - based learning and why we should also enforce project - based learning in high school. as far as substance of project - based learning and objective circumstance what it should have are concerned, it points out the practical ability. at last, based on that university physics education has relatively longer cycle, it proposes stage pattern for enforce project - based learning and give two concrete cases, which discuss capacitance of confocal oval - shaped stylar capacitor and potential distribution of charged conductor of surface being uniparted hyperboloid

    本文在具體的教育理論指導下，闡述了研究性學習的內涵及特點；在大學物理中實施研究性學習的意義；以及就研究性學習的實質和所需具備的客觀條件而言，論述了研究性學習在高校中實施的可行性；並根據大學物理教育具有周期性相對較長和專業循序漸進的特點，提出了研究性學習的階段性模式，並給出了具體的實例，利用保角變換法討論了共焦橢圓柱形電容器電容及單葉雙曲面帶電導體的電位分佈。
  3. The approach includes ( 1 ) obtaining the cutter - location data based on parameter curves. ( 2 ) tessellation of the trim nurbs surfaces into triangles. ( 3 ) interference detection and tool - position correction

    在曲面的參數線上規劃刀位軌跡，將曲面用三角片離散逼近，利用刀具曲面與三角片的幾何相關性進行干涉檢查及刀位修正。
  4. In the thesis. reading the iges file - 3 - and all the geometry entities and annotation entities are extracted ; on the base of geometry entities extracted, geometry entities are classified based to their three views. a new data structure is proposed to describle 3d form features ; inspection items of the workpiece are recognized ; the cmm - based inspection planning system is built ; on the other hand, as a part of cims, cmm need exchanging data with the software of cad / cam, so iges export interface is developed based on iges standard. in order to show the whole information of the surface, the 3 - dimensional free - form surface is drawing using the opengl

    通過讀取iges文件對實體進行分離、提取、識別出對工件進行描述的原始信息；在此基礎上，西安理工大學碩士學位論文提出一種優化演算法對三視圖自動進行分離，建立了一種對工件進行三維描述的數學模型，照此模型對工件進行立體重構；識別出工件的各種檢測信息，提出一種對公差信息進行描述的數學模型，井與三維立體相結合，生成有檢測意義的三維實體；根據三坐標機的測量系統，生成相應的檢測規劃；另一方面，作為cmis的一部分，應具有與cad cam軟體之間的數據交換功能，本文還開發了iges輸出介面，採用opengl繪制三維空間曲面，向用戶展示其全面信息。
  5. Abstract : a new waveguide which can change the wide wall of a rectangular waveguide into a symmetric arc wall is named as a cam - rectangular waveguide. comparing to sectoral waveguide, the new waveguide has the same voltage characteristics and is easier to be produced and fixed. an approximate formula of the dominant mode fields and the normalized conductance of a longitudinal resonant slot cut in the curved wall of a cam - rectangular waveguide are given. a resonant slot linear array in c & x band is designed, in which the slot voltage distribution is equiphase and the input is matched. the input voltage stationary ware ratio and the h - plane pattern of the antenna are measured. the experimental results show the conformance with theoretical results

    文摘:把常用的矩形波導一個寬面改成圓弧形構成的波導稱為圓突-矩形波導.這種波導與扇面波導相比：電性能相當；波導管結構更加簡單，容易加工，便於安裝.文中給出圓突-矩形波導中主模場，圓曲面上縱向槽歸一化諧振電導近似公式.設計了c和x波段波導曲面縱向諧振縫隙線陣，縫隙電壓相位為同相分佈，輸入端匹配.實際測量了天線輸入端電壓駐波比和h面方向圖，理論與實驗相吻合
  6. The intake lag angle of the engine is optimized, and the dynamic effects of intake pipes and exhaust pipes to the improvement of motorcycle engine is applied to make the engine test performance curve approach the simulation curve

    本文介紹了從進氣晚關角及進排氣的動態效應幾方面著手，不斷改進發動機的配氣相位以及進排氣系統，使發動機的實際性能曲線逐步接近計算機模擬曲線。
  7. The thesis had done the theories analysis in detail and built the relevant mathematics models aiming at the mechanics characteristic about the lodging of stalk, the elastic and plastic deform of stalk under the action of the transverse loads, the mechanics condition which causes stalk pushed, the relation between the speed of unit and the surface radius of ski, the relevant location between the thickness of the compressed stalk and action location of load, the relevant location between the mating device and plough, the coefficient of overturning soil under the thickness of the compressed stalk and so on. in addition, the computer aided analysis and simulating experiments in field were acted by choice

    本文對秸稈自倒伏力學特性；橫向載荷作用下的莖稈彈塑性變形與秸稈被推倒的力學條件；機組作業速度與滑撬曲面半徑的關系；秸稈壓實厚度與加載作用點的相對位置；配套裝置與犁體相對位置；秸稈壓實厚度下的翻垡系數等，進行了較詳細的理論分析並建立了相關數學模型。在此基礎上，本項研究還選擇性地進行了計算機輔助分析和田間模擬試驗。
  8. 8 warren j. blending quadric surfaces with quadric and cubicsurfaces. in proceedings of the 3rd symposium on computationalgeometry

    而且適用這種方法的管道曲面在形狀及空間相對位置上有很大的限制，因此不便於實踐運用。
  9. To eliminate or lessen the system errors caused by the offset and slope of the thin aluminum sheet when measuring its surface, and to avoid over - cutting while machining the honeycomb surface, the saddle - point programming is applied to the position optimization of the theoretical surface. to generate the cnc program of the honeycomb sandwich, the equidistant calculation of the actual surface is produced and the data processing software is developed

    利用鞍點規劃方法優化理論橢球面的位置，使實測曲面相對理論橢球面的最大法向誤差達到最小，減少或消除了蒙皮內表面測量時由於定位的偏心或歪斜引起的系統誤差，使誤差均化，防止了配對加工蜂窩夾芯表面時少切或過切現象的發生。
  10. Now the 2d precision of spatial points is very great, but because by usual correlation fitting method we can transfer gps ellipsoidal height into normal height of the local geoid is considered as mathematical curve plane, it is not conform the fact of mountainous districts so the precision of elevation is so small that it is not satisfied with the requirement of leveling

    目前，地面點的平面位置確定精度已相當高，但高程精度始終未能達到水準測量的要求，因為將gps大地高轉化為水準正常高的擬合推估方法是將局部大地水準面視為數學曲面，常常與實際情況差異較大（特別在西部山區差異更大） 。
  11. Mathematicians found that these highways always exist whenever two celestial bodies are revolving around each other. any object in these highways will always be attracted towards or driven away by gravity from l1 and l2, without extra energy input

    數學家發現，在兩顆互相公轉的天體，總會存在這些管狀的曲面，當物體位處管上，便會被驅往或驅離l1或l2 。
  12. In some makes of engine the helically splined coupling is not used and the angular displacement of the shafts is effected by centrifugally actuated devices of the swinging link or inclined plane type

    在一些發動機的製造中，並不使用螺旋式花鍵套管，通過搖桿或斜面型的偏心操縱裝置，曲軸相位角起到同樣作用
  13. The system was based on the phase detection of projected grating to sense body ' s 3d data, surface fitting was simulated by b - spine patches in the sense of piecewise least square, so it had more practical value in treatment and basic medical study

    提出應用投影柵相位法測量人體的三維數據，在最小二乘意義下採用b樣條擬合曲面的方法，在臨床治療和醫學基礎研究方面有重要的實用價值。
  14. Firstly the phase is extracted from interferogram by filtering and displacing frequency spectrum. then the wavefront and the line integral density are recovered by using fft or polynomial fitting method. lastly the radial local density distribution is calculated from the fitting curve of line integral density by the abel inversion

    首先對干涉圖進行頻譜濾波，用頻譜移頻法從干涉圖中提取相位，然後用快速傅立葉變換或多項式擬合實現波面重建，計算線積分密度，再利用abel積分變換從線積分密度的擬合曲線中反演徑向體密度分佈。
  15. Firstly, the basic character of the remote filed eddy current is simulated and analyzed in case of two - dimension axial symmetry which approves the existence of remote filed eddy current phenomenon ; the full circumferential defect model is investigated to approve the feasibility of using the rfec techniques to detect the position and depth of defect ; the pit corrosion 、 circumferential and axial crack models are simulated, and the defect character based on voltage plane polar plot and the changes of phase and amplitude are analyzed to supply the standard for defect reconfiguration

    首先，在二維軸對稱情況下模擬與分析了遠場渦流的基本特性，證實了遠場渦流現象的存在;對全周向缺陷的遠場渦流檢測進行了詳細研究，證實了遠場渦流檢測缺陷位置和深度的可行性;對點狀腐蝕、軸向與周向裂紋三種非軸對稱缺陷進行三維有限元模擬，利用相位差和幅值變化曲線與電壓平面極坐標圖對缺陷特徵進行分析，為缺陷形狀重構提供了依據。
  16. This product acquires engine crank corresponding phase signal and rotating speed signal, which after ecu treatment, are used together with signals collected from other load sensor ( such as shutter location sensor ) to achieve electronic control over engine ignition timing. compared with mechanical ignition timing control, this is more precise and reliable, resulting in optimized performance of engine in oil consumption, exhaust, output and torque

    Fdw465b型電噴分電器總成採集發動機曲軸相位信號及轉速信號，同其它負荷傳感器（如節氣門傳感器等）採集到的信號，經電控單元ecu計算處理后，實現對發動機點火正時的電子控制，較之機械式點火正時控制更加精確、可靠，使汽車發動機系統的綜合性能得到較大提高，特別是發動機的燃油消耗率、排放、輸出功率、扭矩等方面都得到較大優化。
  17. Finally, a new 3d surface ranging method based on a digital fringe projection and shifting technique is systematically studied and non - linear rectification algorithms which reduce measurement error is proposed. at the same time, the noise - immune phase unwrapping algorithm is deeply studied and a new algorithm for phase unwrapping of phase map is proposed. experiment make known the algorithm can reduce measurement error, bypass the noise points automatically, solve the problem of the shade sheltering or cavity, overcome the error propagation problem and better results have been obtained

    論文最後系統研究了基於數字相移條紋投影曲面三維測量方法，創造性地提出了一種減小測量誤差的非線性校正演算法，取得了預期的效果；同時對相位去包裹演算法進行了較深入研究，提出了一種噪聲圖像相位去包裹方法；實驗表明該方法能減小非線性測量誤差，自動避開噪聲點和間斷點，獲得了滿意的結果。
  18. A mathematical model in the grinding technology of explosion - proof surface is worked out to find out vibration characteristics, amplitude and phase, and educe the relation curve between shape error and technical parameter

    進而討論箱體零件加工工藝過程誤差轉換模型、形狀精度特徵、傳遞圖、描述方程、誤差轉換結構圖；提出防爆面磨削工藝系統的數學模型；求解出振動特性、幅值和相位，得出了形狀誤差與工藝參數的關系曲線。
  19. Vibration equation of two - plane balancing rotor is derived. non - linear error of bearing support of hard bearing balancing machine is analysed and relation curve is presented

    推導了雙面平衡轉子的振動方程，分析了硬支承動平衡機的支架非線性誤差對振動幅值與相位的影響，並繪制了關系曲線。
  20. Jacobi transformation is used to find correlations among coefficients. then a method to transform general quadratic surface to formal quadratic surface equation is introduced. the location, direction and size of quadratic surface are obtained

    論述了運用jacobi變換方法來處理系數相關性問題，實現了二次曲面的一般方程的求取，並探討了將通用系數形式轉化為標準二次曲面方程的方法，從而求得二次曲面在空間的位置、方向和大小。
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