數值通量 的英文怎麼說

中文拼音 [shǔzhítōngliáng]
數值通量 英文
numerical flux
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 通 : 通量詞（用於動作）
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 數值 : numerical value; numerial number; figure; magnitude; value數值表 numerical tabular; 數值天氣預報 ...
  • 通量 : [物理學] flux; shower
  1. The waves should be sheared waves for the anisotropic aeo device and longitudinal waves for the isotropic aeo device. geometrical relationships of anisotropic acousto - optic effect in ln crystal and kdp crystals are studied by tangent - match condition. curves of incident angle vs. abaxial angle, diffractive angle vs. abaxial angle, extreme frequency vs. abaxial angle and acousto - optic merit vs. incident angle vs. abaxial angle are systematically gained and the design parameters are also calculated

    利用相切-匹配條件法研究了鈮酸鋰晶體及kdp晶體的反常聲光互作用幾何關系，系統地得到了以離軸角為自變量的各參數的計算公式及相應的關系曲線，通過數值分析方法給出了聲光優值隨中心頻率的變化曲線並給出了器件的設計參數。
  2. It further discusses the operation mechanism of the system of agrotechnical diffusion and indicates that the essence of technical diffusion is information diffusion, and the system depends on the course which information flows from the fountainhead to the receivers. and it analyzed the ingredients which influence the information flowing in the system. intruding shannon ’ s information

    進一步探討了農業技術擴散系統的運行機制，並指出，技術擴散實質是信息的傳播，是建立在信息從信息源到接收者之間的流動過程，對技術推廣系統中影響信息流動的因素進行分析，引入shannon的信息熵計算方法，對信息接受者的信息接收含量進行測度，通過對所得的數值進行比較，運用定量與定性分析相結合的方法證明技術推廣活動的效率。
  3. And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed

    研究結果如下：首先針對荒漠化地區的地物特徵，對高光譜數據不同波段的數據質量、波段組合進行了評價，提出了適用於荒漠化監測的基本波段選擇集；初步了解和掌握了研究地區的地物光譜特性及變異規律，進一步明確了掌握地物光譜特徵和變異規律是用成像光譜儀數據提取地物信息的基礎；發現了基於光譜整體形狀的分類方法在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度變化引起的反射率曲線整體平移的「同物異譜」現象，對于譜形相似而整體反射率的值相差較大的兩類地物，通過引入均值和方差圖像參與分類得到解決；研究還表明在植被「紅邊」范圍內的波段是進行荒漠化監測的主要特徵波段，這些波段與植被生物量和蓋度都有密切的關系，是開展精細植被分類研究和植被定量反演的重要基礎；像元的導數光譜分析可以消除土壤背景的影響，是進行植被生物量和蓋度定量反演的有力工具；建立了荒漠化監測主要評價因子的定量反演模型，並分析了模型的適用性。
  4. And the explicit finite difference method, the combining method of the central difference method and newmark s constant average acceleration method, and the transmitting boundary are used. by comparing the acceleration determined by the several methods of the displacements or velocities, a computing method of acceleration employed the one side difference of velocity is more practicality in this research. corresponding to normal incidence of the body waves, p waves or svwaves, and rayleigh surface waves, two two - dimensional finite difference programs are compiled to compu te the dynamic response of two - phase media

    以土力學模型為基礎，利用以土骨架和孔隙流體的四個位移為基本未知量的數值方法去模擬二維飽水介質中的地震波傳播，採用了顯式差分方法（中心差分法和newmark常平均加速度法結合）和透射邊界，通過比較利用幾種差分格式求解的加速度結果，發現一種用速度單邊差分求解加速度的方法在本文研究中較為實用，分別編制了體波（ p波或sv波） 、 rayleigh面波輸入時求解兩相介質動力響應的兩個二維數值分析程序。
  5. The posture characteristics and systematic measurement of burbot was compared be tween jingbo lake and baikal. the genetic variation of the posture characteristics of the jingbo lake burbot was discussed from

    通過對位處黑江水系南緣位置的鏡泊湖所產江鱈體態性狀的系統測量統計數值，與屬北極海水系的貝加爾湖江鱈的同等性狀進行對比，用統計學
  6. The theory overall illuminates how the investment company proceeds the stock choice and turns the stock choice into the concrete number by turning six factors given weights that affect the result of the stock choice into the probability of the stock choice by the quantitative method. the important points lie in : 1 considering the external environment, the growth nature, the venture and the corporate v alue ; 2 overcoming the non - comparability of the financial ratios between the corporations of different lines

    此理論從公司的外部環境和公司的內部因素全面地闡述了投資公司如何進行股票選擇，以及通過對成長性、公司所處的風險、宏觀及行業、公司的價值和處于不同行業的企業間財務比率進行量化處理，將影響股票選擇的六大因素賦以權值后轉化成股票選擇的可能程度值，從而將股票選擇用具體的數值來表示。
  7. Brings forward the basic network cell model of symmetrical blast vault and asymmetric blast vault. then studies and analyses airflow in vault of main voltage switchyard hall of xiluodu hydropower station which is far cry and large numbers of airflow conflux, brings forward concept of “ virtual embranchment ” and corresponding basic network cell model, regresses calculate expressions of flux uniformity coefficient and impedance of “ virtual embranchment ” of vault of main voltage switchyard hall of xiluodu hydropower station

    而後又採用cfd數值模擬的方法對溪洛渡水電站主變洞排風拱頂這種多股氣流匯流的長距離通道內的氣流流動進行了分析，提出了「虛擬分支」的概念和相應的網路基元模型，並回歸得到了溪洛渡水電站主變洞排風拱頂各個排風「虛擬分支」風量均勻系數以及阻抗的計算公式。
  8. The numerical simulations demonstrate the convergency within a wide region of this method to out - perform the conventional regularization gauss - newton method

    通過與傳統的正則化高斯牛頓法相比較，顯示了小波多尺度法是一個大范圍收斂、能夠有效節省計算量的方法，數值模擬的結果也表明了方法的有效性。
  9. Regard - ing the surface runoff mechanism, liang and xie 1, 2 presented a new surface runoff parameterization which dynamically represents both the horton and dunne runoff generation mechanisms within within a model grid cell together with a consideration of the subgrid - scale het - erogeneity, which can be applied to not only humid regions but also droughty regions as well 3, 4. regard - ing the soil water movement, xie et al. 5 developed an unsaturated flow numerical model based on the finite element method, and xie et al. 6 presented another numerical model to compute soil moisture and water flow flux together by means of a mixed finite element method

    在地表徑流方面，文獻1 3發展了一種同時考慮蓄滿超滲產流機制及次網格非均勻性的新的徑流機制模型，並用其改進了陸面模式vic variable infiltration capacity中的徑流計算，該模型既適用於濕潤地區也適用於乾旱地區4 .在土壤水模型方面，文獻5採用有限元質量集中法發展了非飽和土壤水流的數值模型，文獻6則採用混合有限元法建立了非飽和土壤水分含量和通量計算的數值模型
  10. For obtaining the numeral solutions of round elastic plates in axisymmetrical deformation with varying - thickness in nonlinear deformation in the unsteady electromagnetic field and mechanical field, by establishing the equations of motion, the equations of distortion, the equations of lorentz force, the equations of electronic dynamic mechenical, and adopting iterative method, we gained the nonlinear magneto - elastic calculation method and outcome of current - carrying shell, and gained the influencing degree toward mechanical parameter of varying thickness round ferreous plates in the electromagnetic field and mechanical field

    摘要為了獲得內邊界固定的環形導電薄板在均布力與橫向磁場作用下的變形問題的數值解，通過建立運動方程、變形方程、電動力學方程和洛侖茲力方程，運用迭代法得出了載流板殼的非線性磁彈性的計算方法和結果，以及機械場、電磁場對鐵質變厚度圓板各力學參量的影響程度。
  11. Based on analysis of geologic foundation record about pingzhuang basin, a lot of sino - foreign geothermal geology record and investigation of field geology, measuring of ground temperature in person and geo - chemical analysis of ascension spring, gushing water of fault, the fact that the anomaly of geothermal gradient of pingzhuang basin, which is in region of low geothermal gradient, is caused by redistribution of conduction - oriented geothermal heat flow which is result from upheaval and depression of basin foundation bed is pointed out. after the field of ground temperature is simulated under the background of conduction - oriented geothermal heat flow by means of ansys, the characteristic of ground temperature distribution of top surface of basin foundation bed ( yixian team ) is revealed. the sound condition of transmissibility fault and feeding water source, which are imperative in formation of the low - medium temperature geothermal system of convective type, is possessed in pingzhuang basin

    通過對平莊盆地基礎地質資料、國內外大量地熱地質資料的分析和野外地質調查、礦井實測地溫以及上升泉、斷層涌水的地球化學分析等工作基礎上，指出地處低地溫梯度背景區的平莊盆地地溫梯度異常是由於盆地基底隆起和坳陷引起傳導型大地熱流再分配所致；運用州sys數值模擬了大地熱流向地表傳導背景下的盆地地溫場，從而揭示了盆地基底（義縣組）頂界面地溫分佈特徵；闡明了盆地具有形成中低溫對流型地熱系統所必需的導水斷裂、補給水源等的良好條件，中低溫對流型地熱系統是地熱勘查的主要對象；圈定了平莊盆地北部朝陽溝?駱駝營子地熱勘查遠景區。
  12. This paper applies kami ' s method to analyze conservative scheme in lagrangian coordinate, and then selects one of upwind schemes which do not show oscillations, finally applies it to construct high resolution scheme. numerical flux of one order scheme is used near interface, while numerical flux of high resolution scheme is adopted in other area

    本文在對lagrange坐標系下的守恆型格式進行詳細分析后，甄選出不震蕩的一階迎風型格式，然後應用於lagrange坐標系下的高解析度格式，在物質交界面處採用不震蕩的一階迎風型格式的數值通量，而在其餘地方採用高解析度格式的數值通量。
  13. In fluid field solving, the numerical flux is estimated using high - accuracy roe scheme with limiter. in time marching, we use dual - time stepping together with implicit lu - sgs scheme and get reasonable results efficiently. the difference of the fluid computation between single grid and overset grids lies in the dispose of the computation boundary

    流場解算時，對流場數值通量的求解採用的是帶限制器的高階精度roe格式，時間推進採用了含雙時間步長的隱式lu - sgs （ lower - uppersymmetricgauss - seidel ）格式，提高了求解的效率。
  14. Through derivation the present thesis proves numerical value flux conserva tion of sub - domains interface boundary can make parallel numerical schemes conservative

    通過推導證明了只有使內邊界數值通量守恆才能使并行后的總體數值格式是守恆的。
  15. This text makes the flux of numerical value of interface boundary among sub - domains reach the conservation with a kind of simpler method

    本文用了一種比較簡單的方法使子分區之間的內邊界數值通量達到守恆。
  16. In these regions, an expensive high - order accurate eno scheme is applied to evaluate the numerical flux at cell boundaries. and hi smooth regions a cheap spline interpolation is used to get the value of the numerical divergence from values previously obtained on lower resolution scales to save the computational cost

    在這些奇性區域，我們利用代價昂貴的高階基本無振蕩格式計算單元邊界的數值通量；而在解光滑的區域，則用廉價的樣條插值根據先前低分辨尺度上得到的值來計算出其數值散度，從而減少計算工作量。
  17. In this work, we detailedly introduced the whole ideas of rkdg finite element method and the theory of constructing gas - kinetic schemes based on boltzmann equation. and then presented a kind of new computational method for solving id and 2d compressible euler equations, i. e. firstly, we discretize euler equations in the space with discontinuous galerkin finite element method ; secondly, we discretize temporal variable t with runge - kutta formula ; thirdly, for numerical fluxes constructing, we give two kinds of different numerical fluxes - kfvs and bgk numerical fluxes by using gas - kinetic schemes

    本文分別對rkdg有限元方法的整個思想和基於boltzmann方程的分子動力學格式的構造思想給予了詳細的介紹，並分別結合rkdg有限元方法與kfvs數值通量和bgk數值通量的構造方法，給出了一種求解一維、二維可壓縮流體力學方程組新的計算方法，即，我們先用間斷有限元方法進行空間離散，然後再對所得到的半離散格式使用runge - kuttatvd方法進行時間離散，得到全離散格式。
  18. First, we present the equivalent variatial formulations of the least - squares mixed method and prove the existence and uniques for the weak problems. on the basis of l2 - projections and raviart - thomas projections, we obtain the superconvergence of the least - squares mixed finite element approx - imations on uniform triangulations, where triangular mixed finite elements of the lowest order raviart - thomas spaces are used to approximate the flux p. in the second chapter, we briefly recall the standard and mixed finite methods for second order elliptic problems, and introduce a modified least - squares mixed method

    作者首先導出了最小二乘混合元方法的等價變分形式，並且證明了變分問題廣義解的存在唯一性；在此基礎上，我們採用強一致三角形剖分，選取最低階的raviar - thomas空間對未知函數的通量進行逼近，利用l ~ 2投影和raviart - thomas投影，得到了插值投影和最小二乘混合元解之間的超收斂結果。
  19. The parameter value of feasible scope, resist - intention, resist - intention elastic module and crack intention is given out. experiment result is tested through in - place examine of experiment road and analysis to correct and perfect the experiment conclusion, at the same time quality inspect and evaluate standard is summarized in this paper

    得出了適宜的再生材料級配范圍、抗壓強度、抗壓回彈模量、劈裂強度等主要設計參數值，通過現場鋪築試驗段檢測，室內分析的方法，檢驗室內試驗結論，以用於對室內試驗結論的修正補充及完善。
  20. The research paper introduces the current human resources measurement condition briefly and then develops research through questionnaires, so as to acquire all statistics. it analyzes alternative factors and forms the measurement system of human resources value. since all the factors are qualitative factors instead of quantitative factors, we introduce gray model theory and the membership degree

    本文在對人力資源價值計量研究的現狀進行簡要介紹的基礎上，通過開展調查研究，採用問卷調查法取得了相關的數據，從而探求構成人力資源價值的各項要素數值，通過對各要素進行因子分析，形成人力資源價值構成體系，因其各因素是定性的因素而非定量的因素，故在其計量上我們引入模糊隸屬度，來對其可計量的因素進行調整，並建立相應的模型。
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