numerical transformation 中文意思是什麼
numerical transformation
解釋
數字變換- numerical : adj 數字的；數值的；用數字表示的。 （a） numerical order 號數。 a numerical statement 統計。 the ...
- transformation : n 轉變，變化；變形；【生物學】（尤指昆蟲的）轉化，變態，改造，改革；變質；【數學】變換；【電學】...
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Based on the analysis of eutectoid transformation of sg ( spheroidal graphite ) iron, the numerical model of formation of ferrite and pearlite during the eutectoid transformation was improved
摘要通過對球墨鑄鐵件共析轉變的分析，改進了球鐵件中鐵素體與珠光體形成的數學模型。 -
Based on the generalized huygens - fresnel diffraction integral and in consideration of the effect introduced by astigmatism, the transformation properties of gaussian beams passing an astigmatic lens are studied analytically, the beam quality of astigmatic gaussian beams is analyzed in terms of the beam propagation factor ( m2 - factor ) and power in the bucket ( pib ), and illustrated with numerical examples
基於廣義惠更斯-菲涅爾衍射積分，並考慮了像散的影響，對高斯光束通過像散透鏡后的傳輸特性作了解析研究，以光束傳輸因子和桶中功率為參數分析了像散高斯光束的光束質量，並以數值計算例加以說明。 -
The computer speed is speeded up. the numerical results of the present models are in agreement with the theoretical solution and those of physical models. systematical numerical tests show that the present models can reasonably simulate the wave transformation, such as shoaling, refraction, diffraction, reflection, effect of currents and so on
比較詳細的模型驗證與應用表明，模型的數值模擬結果與解析解、物模實驗值吻合良好；可以較好地模擬波浪傳播過程中的淺水變形、折射、繞射和反射等多種現象；能正確合理地反映水流對波浪傳播的影響。 -
Numerical simulation of the transformation of hermite - gaussian beams through a complicated optical system with multiple hard - edged apertures
高斯光束通過多個硬邊光闌復雜光學系統變換的計算模擬 -
Though adopting the - coordinate transformation in the control equations and mode - splitting technique, the external mode ( surface gravity waves ) is solved by the improved double - sweep - implicit finite difference method ; the internal mode ( internal gravity waves ) untilizes the eulerian - lagrangian method, which improves the implicit - difference scheme for the vertical direction. the newly developed 3d numerical tidal model with implicit scheme has been successfully applied in the radial sandbanks area
基於過程分裂法及垂向坐標伸縮變換，外模式採用改進型雙步全隱有限差分dsi法，內模式採用歐拉?拉格朗日公式，改進了三維垂向隱式格式，成功地建立了南黃海輻射狀沙脊群海域三維全隱格式潮流數學模型。 -
Morphing is the continuous smooth and natural transformation of a source object into a target object, where the object can be a numerical image, curve, surface, mesh, etc. morphing has very wide use in many areas, such as computer graphics, animation design, industrial modeling, science computation visualization, film stunt, etc. this paper makes researches on the morph of compatible planar triangulations and that of planar polygons, and the main results are as follows : 1 ) morph of compatible planar triangulations : this paper presents a convexity - preserving method for morphing compatible planar triangulations with different convex boundaries
變形，是指從初始物體到目標物體的連續、光滑、自然的過渡（這里的物體可以是數字圖像、曲線、曲面、網格等） 。變形在許多領域有著十分廣泛的應用，如計算機圖形學、動畫設計、工業造型、科學計算可視化、電影特技等。本文對同構平面三角網格的變形和平面多邊形的變形進行了研究，主要的研究結果如下： 1 ）同構平面三角網格的變形：提出了具有不同凸邊界的同構平面三角網格的保凸變形方法。 -
To solve these problems respectively, the color space transformation and bp neural network are firstly used to realize the classification and threshold processing of images. then the images processing including thinning, interval linking, code word chaining, seed filling, boundary fitting is performed well by some methods in mathematical morphology and computer graphics and interpolation in numerical value analysis
為了逐一解決這些困難，運用了色彩空間變換以及bp神經元網路的方法對圖像進行分類和閾值處理，利用數學形態學和計算機圖形學以及數值分析中的插值等方法對圖像進行了細化、間隙連接、鏈碼、種子填充、邊界擬合等處理。 -
In the brief analysis grinder numerical control transformation erroneous compensation and the grinding wheel repair - and maintain
淺析磨床數控化改造中的誤差補償與砂輪修整 -
According to the laplace transformation method and superimposition principle, theoretical solutions of the effect of three typical bin ' s surface protecting methods of thermal insulation were given. based on the solutions, the characteristics and rules of three insulation procedures were analyzed in numerical calculation. the research results of this paper are valuable for engineers to design economical and viable bin ' s surface insulation way
利用拉氏變換方法及疊加原理，求解出保溫板保溫、倉面噴霧、流水養護這三種常用倉面保護方式降溫效果理論解答；並基於此理論解答，對三種倉面保護方式的特點及規律進行了研究，從數值上分析了幾個影響溫度變化的主要因素：保溫板厚度、內外溫差梯度，距表面不同深度等對每種保護方式降溫效果的影響。 -
Numerical computation is now the most popular method in the study of nonlinear wave propagation and transformation
數值計算方法已成為研究波浪在近岸的傳播變形及其與障礙物之間的相互作用的主要方法之一。 -
Studying on the mechanism of nitrogen transport and transformation under the conditions of fertilization and irrigation with sewage effluent is very important for utilization of sewage effluent and fertilizer and pollution control. based on laboratory and field experiment and numerical simulation, nitrogen transport and transformation has been investigated in this dissertation
污水灌溉和施肥條件下，氮素在土壤與作物系統中遷移轉化規律的研究，對于合理利用污水資源和合理施肥，最大限度提高水分和養分的利用率，減少硝態氮淋洗風險，具有十分重要的意義。 -
A nonlinear numerical model for wave transformation is established in time domain based on integral equation transformed from two dimensional laplace equation. then the model is applied to compute the linear wave and nonlinear wave deformation in offshore flow field. a new 0 - 1 combined bem ( boundary element method ) is adopted in this thesis to avoid computational errors accumulated with time steps
本文以波動勢函數的laplace方程的green積分轉換得到的邊界積分方程為基本控制方程，建立了一種新的時域內波浪變形計算的數值模型，籍此對非線性波浪在結構物周圍的波浪形態進行了數值模擬，並通過數值造波水槽內的波浪試驗對數值模擬結果進行檢驗。 -
Abstract : the propagation of waves passing over the abrupt changing topograghy can be simplified as a wave passing over a step. this flow process can be reasonably simulated by a 2 - d numerical wave flume developed in this paper, especially for the nonlinear transformation of the wave on the step. numerical results have been verified by experimental data
文摘:波浪在水深劇變地形上的傳播，可以簡化為波浪在臺階地形上的傳播.利用二維數值波浪水槽可以很好地模擬這一過程，特別是對波浪在臺階上的非線性變形.數值計算結果與實驗測量進行了比較，結果吻合良好 -
When awg regarded as space unchanged linear system, an analytical solution of out - waveguide field is obtained by using the impulse response function. the crosstalk transformation on account of apertometer and waveguide spacing is also obtained by numerical calculation
本文還將awg視為空間不變線性系統，使用點擴展函數的方法，求出awg系統輸出分佈的解析式，通過數值計算得到串擾與數值孔徑及其波導間距的關系。 -
First, by using coordinate rotation, we have discussed the computer - generated hologram composed by planar object whose plane does n ' t run parallel with that of its hologram. second, through coordinate transform, the computer - generated hologram of curvy planar object has been discussed again, in which, conformal map in computer graphics has been creatively applied, and generated the computer - generated hologram of simple curvy plane ( e. g. spherical surface ) ; also, in this section, the correctness of transformation has been confirmed by numerical reconstruction
首先利用坐標旋轉討論不平行於全息面的平面所構成的物體的計算全息圖：接著採用坐標變換討論曲面物體的計算全息圖，創造性地將計算機圖形學中的共形對應原理運用到計算全息中，生成了簡單曲面（如球面）物體的計算全息圖，並用數字重現驗證了變換的正確性，為今後復雜三維物體的計算全息圖的研究奠定基礎。 -
Synthetic aperture radiometer applies the interferometric principle to sample in the spatial frequency domain and retrieves the image by fourier or other numerical transformation
綜合孔徑輻射計利用孔徑綜合原理在空間頻率域中采樣，通過傅立葉變換或其他數學變換獲取反演亮溫圖像。 -
A numerical characters recognition method based on r transformation
變換的數字字元識別方法 -
Abstract : a numerical model for wave propagation in water of varying topography and current is proposed, and time - dependent wave mild - slope equation with a dissipation term and corresponding equivalent governing equations are presented. two different expressions of parabolic approximations for the case of the absence of current are also given and analyzed. examples of numerical simulation for wave transformation in large estuarine water areas are provided
文摘:提出了水深與流場緩變水域波浪傳播數學模型水流中依賴時間變量並考慮能耗的波浪「緩坡方程」及其等價的控制方程組，分析比較了無水流情況此理論模型與其相應的兩種拋物型近似的差別，提供了長江口波浪變形數值模擬計算工程實例.實例表明，該模型能適應河口三角洲大范圍水域波浪傳播數值計算 -
Numerical simulations of martensitic transformation in ni - al alloy
合金馬氏體相變 -
Abstract : we conduct a theoretical study on the properties of a bound polaron in a quantum well under an electric field using linear combination operator and unitary transformation methods, which are valid in the whole range of electron - lo phonon coupling. the changing relations between the ground - state energy of the bound polaron in the quantum well and the coulomb bound potential, the electric field strength, and the well width are derived. the numerical results show that the ground - state energy increases with the increase of the electric field strength and the coulomb bound potential and decreases as the well width increases
文摘:採用線性組合算符及幺正變換方法研究了電場對量子阱弱耦合束縛極化子的性質的影響.推導出量子阱中束縛極化子的基態能量和庫侖束縛勢、電場和阱寬的變化關系.數值計算結果表明，基態能量因電場和庫侖束縛勢的不同而不同，隨電場和庫侖束縛勢的增大而增大，隨阱寬的增大而迅速減小
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