共軛點 的英文怎麼說

中文拼音 [gòngèdiǎn]
共軛點 英文
conjugate foci
  • : 共動詞[書面語]1. (圍繞) surround2. (兩手合圍) span with the hand
  • : 名詞(牲口拉東西時架在脖子上的器具) yoke
  • : Ⅰ名詞1 (液體的小滴) drop (of liquid) 2 (細小的痕跡) spot; dot; speck 3 (漢字的筆畫「、」)...
  1. A study on the zhongshan conjugate point location during auroral substorms

    極光亞暴期間的南極中山站地磁共軛點位置研究
  2. A. douady had suggested to study dynamics of biquadratic polynomials. by definition, a biquadratic polynomial is the composition of two quadratic polynomials, so it is an even quartic polynomials which can be written as f ( z ) = z4 + az2 + 6, where a, b are parameters. it is easy to see that / has a critical point at 0 and two symmetric critical points at

    A . douadv曾建議對雙二次多項式的動力系統進行研究,所謂雙二次多項式就是兩個二次多項式的復合,也即偶四次多項式,在一個線型下可以記為fz ) = z ~ 4 + z ~ 2 + b ,這里o , b是參數,0是它的一個臨界,另外還有兩個對稱的臨界( ( - a ) 、 2 ) ~ 2 。
  3. Three stages of deformation can be distinguished from the cataclastic superposition of matrices that infilled the microcracks in cataclastic rocks, and two phas es of paleotectonic stress field from the typical conjugated shear joints by stereograms illustrating

    構造巖中膠結物和微裂隙充填脈反映了巖石碎裂變形的三次疊加。斷裂變形帶內發育兩期典型的剪節理,但區域分佈各有特,反映出斷裂變形的空間演化。
  4. Then, according to characteristic of four kinds of butterfly operation in real number signal integer fft transform keeping modulus conjugating with symmetry, different lifting matrixes has been got and real number signal integer fft transform keeping modulus conjugating with symmetry can been achieved

    然後,根據實信號保持對稱性的fft整數變換中的四類蝶形運算特分別構造不同的提升矩陣,從而實現實信號保持對稱性的fft整數變換。
  5. Starting from the generativ e procedure of conjugate curves the generator 2 and generated curve 1 ar e re garded as two bunches of spatial point sets and the 1 is being considered a s a macroscopic expression in s1 coordinate space of points, satisfying the co n dition of conjugation during the course of relative movement, on 2

    曲線的創成過程出發,將母曲線2和創成曲線1看作兩簇空間集,認為1是由相對運動過程中2上滿足條件的在s1坐標空間中的宏觀表現。
  6. Creative points and all tasks having be finished are briefly shown below : according to the classical space meshing theory, we have strictly deduced a series of formulae such as the equation of contacting line of worm, the equation of the second limiting curve of worm gear, and the equation of working surface and non - working surface, etc. and we have deeply studied the algorism of the actual contacting lines of worm gear drive

    本文的主要創新和成果如下:基於經典嚙合理論,對平面二包蝸桿副的運動關系進行了嚴密分析,獲得了蝸桿副齒面方程、蝸桿齒面一界曲線方程、蝸輪齒面二界曲線方程等一系列齒面分析所必須的數學公式,並深入研究了蝸桿副齒面接觸線的演算法,為蝸桿副的三維數字化造型打下了堅實的數學基礎。
  7. Also, the author ’ s design strategy and creativity has been given in this paper. specifically, it includes : based on the feasibility analysis of the fit selection of control parameters in the aeration process, the aeration process of wastewater treatment of the joint - constructional complete - mixed activated sludge process has been aimed at in this paper. then, the state equations of the aeration process have been proposed in this paper, which is on the base of dissolved oxygen concentration ( do ) and discharge quantity of sludge ( qw ) as control variables, the concentration of bod and sludge as state variables. based on the present study on optimization control of wastewater treatment, the multivariable optimal control model with restriction factor has been presented in the paper with introducing modern control theory and system analysis into the field of activated sludge wastewater treatment,

    具體包括:以完全混合、表面曝氣合建式活性污泥工藝的污水處理曝氣過程為研究對象,在闡述了曝氣過程式控制制參數選取可行性的基礎上,建立了以溶解氧濃度do和活性污泥排放量qw為控制變量,以曝氣池中有機物濃度s和微生物濃度x為狀態變量的活性污泥曝氣過程的基本狀態方程;運用現代控制理論的觀和污水處理理論,在現有關于污水處理最優控制問題研究的基礎上,建立了有約束條件多變量能耗最小數學模型,該數學模型是以有機物排放總量和狀態變量的末值條件作為約束條件,曝氣過程的能耗最小作為目標泛函;採用增廣拉格朗日乘子法對最優控制問題進行轉化,並對應用極大值原理求解能耗最小這一最優控制問題進行了詳細的解析;引入約束運算元,應用具有控制約束的梯度演算法對能耗最小這一最優控制問題進行求解,並進行模擬實驗驗證。
  8. This paper is intended to present an account of the research and application of linoleic acid in pig ' s feeding stuffs in general and its effect upon pig ' s growth performance and its carcass characteristics in particular

    摘要對近年來有關亞油酸在豬營養上的研究與應用進展進行綜述,介紹了亞油酸在豬生產上的應用,重論述了亞油酸對豬的生產性能和胴體品質的影響,以及分析了上述作用的潛在機制。
  9. It has been deduced that the search direction remains the same but that the step length decreases in optimizing the improved cost function with the conjugate gradient algorithm from the gradient of the cost function that the fir filter apporaches the contrary point spread function ( psf ) more, and that the estimated image is closer to the original one

    從代價函數的梯度入手推導出梯度演算法,其搜索方向保持不變而搜索步長變小,使濾波系數更加退近於擴展函數逆運算元,從而使估計圖像與原始圖像更加接近。
  10. In the molecular orbital theory, the molecule of the conjugated hydrocarbons considered generally can be represented in carbon - atom skeleton graph, the character of this kind of graphs is that all vertices have degree no greater than three and have a perfect matching

    在分子軌道理論中,所考慮的碳氫化合物的分子常用碳原子骨架圖來表示,此類圖的特徵是所有頂的度不超過3 ,並且具有完美匹配。
  11. For bilateral symmetry objects, the techniques on symmetry - point detection and symmetry - axis extraction are presented based on harmonic conjugation relationship. for rotated symmetry objects, the techniques on rotated units description and rotated symmetry center extraction are presented based on center invariants of objects. further more, by using 3d invariants and 2d projective transformation, an approach to recover shape from part symmetry objects is realized on some conditions

    ( 3 )深入分析了2d對稱性目標透視成像的幾何特,將四線交比用於目標輪廓上的關鍵的特性描述中;利用調和關系,提出了一種針對左右對稱型目標的對稱檢測和對稱軸提取的演算法;利用交比關系構造了目標的形心不變量,提出了一種針對旋轉對稱型目標的旋轉對稱單元判定、旋轉中心提取的演算法;進一步利用3d不變量和2d射影變換,實現了一定條件下的對稱性目標的形狀恢復技術。
  12. Using method of sumt and powell, the thesis carries out optimization design for air rocket with double - push accelerated velocity and spin - rate regularity, which dramatically decreases air rocket dispersion. in the end, some valuable conclusions are achieved for application

    綜合利用雙推力加速度,轉速規律,同時採用內罰函數法和powell方向法,對航空火箭彈的主要參數進行優化設計,實現了大幅度減小航空火箭彈散布的目的,得到了一些有應用價值的結論。
  13. First we consider the spectral properties of the operator corresponding to this system and obtain that all points on the imaginary axis except for zero belong to resolvent set of the operator, zero is an eigenvalue of the operator and its adjoint operator with geometric multiplicity one

    先討論了對應于該系統的主運算元的譜特徵並且得到了在虛軸上除了0外其它所有都屬于該主運算元的豫解集, 0是該主運算元及其運算元幾何重數為1的特徵值。
  14. This paper discuss a modeling and predicting means for nonlinear systems proceeding from nonlinear systems modeling and predicting theory, whch is based on drnn model. this means overcomes the fact that ar model is used only in linear systems, at the same time it connects itself with approximation theory symbolic statistics and conjugate gradient algorithm, and formulate a system of large watercrafts motion modeling and predicting which is based on drnn model, and simulate it

    本論文從非線性系統建模與預報的理論及應用觀出發,系統地闡述了一類適用於非線性系統的建模預報方法? ?基於drnn模型的建模預報方法,克服了ar模型僅局限於線性的情況,同時結合逼近論、數理統計等知識,運用梯度演算法,提出並建立了基於對角回歸神經網路的大型艦船運動建模預報系統,並進行了模擬。
  15. For solving nonlinear optimization problems, newton method is one of the most efficient methods. as modification to newton method, inexact newton methods are popular for solving the middle and large scale noniinear optimization problems. among them, cf - pcg ( newton - pcg ) method is an efficient improvement to newton method

    在非線性最優化的研究中,牛頓法是二階演算法,對牛頓法的改進,一直是人們關注的問題,近年來,用梯度法對它進行改進,即研究牛頓- pcg型方法是國內外的一個研究熱
  16. Abstract : polyphenylacetylenes were synthesized by rn ( nbd ) cl 2 and wcl6 / ph4sn catalyst systems in n2 at room temperature. polymers with high yield and high molecular weight were obtained. their structures were characterized by uv, ir, nmr and gpc, respectively. the fluorescence of the polymer solution with different concentration was investigated using variable excitation wavelength from uv to visible region. the relation between fluorescence and polymer structure was studied. the results showed that the molecular chain structure has great influence on fluorescence of the polymers. the emitting peak wavelength of fluorescence for the polymer of high stereoregularity is independent of solution concentration and excitation wavelength. the emitting peak wavelength of fluorescence for the polymer with disordered molecular chain arrangement varies with changing the solution concentration and excitation wavelength, and different emission sites in molecular chains and low emitting yield are shown. the measurement and analysis of fluorescence spectroscopy of polyphenylacetylenes may provide some useful information to judge the molecular chain arrangement in some conjugated polymers

    文摘:使用有機金屬銠、金屬鎢/四苯基錫催化劑體系聚合苯乙炔,分別獲得了高產率和高分子量的聚苯乙炔.使用uv , ir , nmr , gpc等分別對聚合物結構進行了表徵.採用不同波長的激發光對聚合物熒光性能進行研究,詳細分析了聚合物結構與熒光性能之間的關系.研究結果發現,不同聚合物結構對聚合物熒光性能產生很大影響,規整性高的聚合物,將有較高的發光量子效率;聚合物規整性差,將可能導致多個熒光發光結構,其熒光強度降低.聚合物熒光光譜研究將對某些聚合物結構的規整性分析提供一些有用的信息
  17. The number of the intersection points which some conjugate states of m sequence are in the state - graph of m sequence has closely relation to the cut - joining method of m sequence

    M序列中的狀態在m序列的狀態圖中的交個數與m序列的剪接構造法有密切的關系。
  18. As a straightforward method, the full search algorithm ( fs ) is widely used because of its high performance. usually, fs is computationally expensive in a video encoder. as a result, in order to reduce the heavy computational load of fs, active research has focused on fast bmas for a long time and several sub - optimal search algorithms for block - based motion estimation have been developed. these include : three step search ( tss ), four step search ( fss ), two - d logarithmic search, orthogonal search, cross search, etc

    目前塊匹配運動估計演算法有很多,如全搜索法、三步法、方向搜索法、二維對數搜索法、交叉搜索法、鉆石搜索法以及四步搜索法等,它們各有優缺,全搜索法精度高,但計算量大,三步搜索法和交叉搜索法搜索速度較快,但搜索誤差較大,容易陷入局部最小值。
  19. Abstract : six quasi - ternary liquid - liquid equilibria systems between benzene, toluene, p - xylene, n - heptane, methyl - cyclohexane and n - formylmorpholine ( nfm ) + water have been determined at normal pressure and 60 ; the conjugate phase compositions and the contribution curves of these quasi - ternary liquid - liquid equilibria systems were obtained ; the experimental data were correlated using uniquac and nrtl models ; the plait points of these systems were obtained by the constructive fitting for the conjugate phase and parameter predicting methods ; the selectivity and contribution coefficients of the solvent to the solutes were calculated

    文摘:用液液平衡釜測定了常壓, 60下加水n -甲酰嗎啉和苯、甲苯、對二甲苯、正庚烷、甲基環己烷組分間6個擬三元體系的液液平衡,得到了擬三元液液平衡體系的相組成和分配曲線;實驗數據用uniquac和nrtl模型進行了關聯;用相作圖擬合法和模型參數推演算法獲得了各體系的褶數據;並求得了溶劑對溶質的選擇性和分配系數。
  20. In the computational methods of tpbvp, in order to reduce some difficulties involved in solving a tpbvp via adjoint variables, we discuss a direct method in which state and control variables are indirectly parameterized, the method employs a recently developed direct optimization technique that uses a piecewise polynomial representation for the state and control variables, thus converting the optimal control problem into a nonlinear programming problem, which can be solved numerically. it makes the initial iterative variable more easy to be determined

    在數值解法中,為了減少解決兩邊值問題變量帶來的困難,主要討論了將狀態變量和控制變量進行參數化的一種直接方法,這種方法採用了近段發展起來的使用分段的多項式來代替狀態和控制變量的直接優化方法,然後最優控制問題就轉化成可以用數值方法解決的非線性規劃問題,使得迭代初值更加容易選取。
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