面的矩心 的英文怎麼說

中文拼音 [miàndejǔxīn]
面的矩心 英文
centroid of area
  • 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...
  • 的 : 4次方是 The fourth power of 2 is direction
  • 矩 : 名詞1. （畫直角或正方形、矩形用的曲尺） carpenter's square; square2. （法度; 規則） rules; regulations 3. [物理學] moment
  1. Direct calculation of symmetric reinforcement for rectangular cross sectional little eccentric compression member

    矩形截面小偏心受壓構件對稱配筋的直接計算
  2. Areal patterns may be rectangular or along concentric circles, depending on the nature of the noise and on the space available for the array.

    面積組合可以是矩形的，或者沿著同心圓周布置，這取決于噪音的性質以及允許的組合間距。
  3. Second, more feature points are extracted for advanced registration based on projective transformation. compared with the ordinary method, our method has a better robust feature with higher accuracy, it also has a fully automatic feature so it need little human intervention in the whole process. the image segmentation, feature extraction, feature correspondency, and transformation model of multi - modality medical image registration are also studied in this paper

    本研究的創新之處:針對rf和fa視網膜圖像的特點，提出了新的血管細化的新方案;在特徵點提取方面，提出了「三輪定心」這種新的特徵點提取方法;提出了由「粗配」到「細配」的混合配準方法;力矩主軸法用於圖像配準參數的估計及對應性尺度參數范圍的定值。
  4. With the standardized workshop occupied 11600m2 and 630t hydraulic presses, 315t two axle punch presses, 250 sets of large, middle, small equipments, the company has the whole series production line. main equipments include cut - board machine, incurvate machine, opened incline pressure machine, drill attack machine, auto - moving hang machine, various kinds of moulding plastic machine, lathe, planer, drilling machine, horizontal axis rectangle platform flat grinder, universale lifting platform milling machine, eccentricity axis punching machine, liquid pressure derrick car, etc

    主要設備有： 630噸液壓機315噸雙軸沖壓機250噸沖壓機等大型沖壓機床，剪板機折彎機鉆攻兩用機自動走軌起吊機各式型號注塑機各式車床刨床鉆床臥軸矩臺平面磨床萬能升降臺銑床偏心軸沖床液壓起重車等大中小設備386多臺套，形成具有自動沖壓步進的生產線。
  5. In this thesis, studies are focused on as follows : ( 1 ) based on analyzing the general transfer - matrix, the conception of the generalized double layer soil model is proposed, and the transfer - matrix ( r ) of half - infinite elastic mass is introduce - d to the analytic expressions of stress and settlement under the uniform circular, rectangular and strip vertical loads in multi - layered soil ; ( 2 ) according to the analytic expressions of the additional stress and settlement under unifo - rm circular in multi - layered soil, rectangular and strip vertical loads, the programs are develop - ed to resolve and debugged. the results show that the programs are correct ; ( 3 ) through calculating the coefficient of additional stress on the central axis of uniform circ - ular vertical loads, under the corner point of the uniform rectangular vertical loads, and on the central axis of uniform strip vertical loads, and the settlement on the center of uniform circular vertical loads and uniform rectangular loads in double - layered soil, the characters of stress and settlement are discussed ; ( 4 ) a case, as an example, is studied with different calculation methods, such as traditional theory, fem. the results obtained are compared

    本文在已有研究成果的基礎上進一步開展了以下幾方面的研究： （ 1 ）在對層狀地基傳遞矩陣法中的總傳遞矩陣分析的基礎上，提出了廣義雙層地基模型的概念，並把半無限體的傳遞矩陣r引入到多層地基在圓形垂直均布荷載、矩形垂直均布荷載及條形垂直均布荷載作用下附加應力與沉降的解析式中； （ 2 ）根據多層地基在圓形荷載、矩形垂直均布荷載及條形垂直均布荷載作用下附加應力與沉降的解析式，編制了程序，調試通過並驗證了其正確性； （ 3 ）通過對雙層地基圓形垂直均布荷載中心軸線上的附加應力系數和荷載中心沉降，矩形垂直均布荷載角點下的附加應力系數和荷載角點沉降及條形垂直均布荷載中心軸線上的附加應力系數進行的計算，探討了雙層地基中的附加應力與沉降特性； （ 4 ）應用本文的層狀地基體系理論對一個工程實例進行了計算分析，並與傳統的計算方法的計算結果和有限單元方法的計算結果進行了對比分析，結果表明利用層狀地基理論計算更能反映地基中附加應力分佈的實際情況。
  6. Standard test method for monotonic compressive strength testing of continuous fiber - reinforced advanced ceramics with solid rectangular cross - section test specimens at ambient temperatures

    室溫下帶實心矩形截面試樣的連續纖維增強高級陶瓷的單值抗壓強度試驗的標準試驗方法
  7. The influence of the eccentricity mass moment, position of mass center and the bearing stiffness to the vibration characteristics of the rotor system is discussed in detail ; 3. to verify the exactness of fem and learn the principle of vibration of dredge pump further, the orbit of the rotor shaft of the pump in the dredger is measured, the measurement results show : the repeat of the orbit of the rotor shaft is very bad when dredge pump is in the dredging mud condition

    模態分析確定了泥泵的振動特性（固有頻率和振型） ；諧響應分析確定了泥泵轉子軸在偏心力的作用下軸截面處的最大響應位移；研究了轉子軸的質心位置、軸承剛度和質量偏心矩對轉子軸振動特性的影響； 3 、採用軸心軌跡法，實船測量了泥泵軸工作時振動響應值。
  8. The results show that setting matrix and geometrical transformation as a selected topic at senior high schools is not only necessary but also feasible. this topic meets the characteristics of students in senior high schools, and can satisfy their development. the results also show that matrix and geometrical transformation can broaden span of view, boost up study interesting, promote development of capability, enhance self - confidence, and build up the ideal and skills of using mathematics finally, several suggestions about the compiling work of new teaching materials and teaching work in practice under new standard were given

    其次，本研究進行了「矩陣與幾何變換」這一選修專題的試驗班教學，對所做教學設計的科學性、所編寫教學材料的有效性與適應性進行了實踐檢驗，結果表明，在高中數學課程中開設矩陣與幾何變換這一選修專題不僅必要而且可行；矩陣與幾何變換這一選修專題的知識既符合學生全面發展的需要，又符合學生的學習特點；發現矩陣與幾何變換對學生全面發展所具有的促進作用主要有：能開闊學生視野，增強學習興趣，增加數學學習的信心，促進學生辯證思維能力的發展，有利於培養學生自覺應用數學的意識與能力等。
  9. The mathematical expression, which is used to calculate the variable phase center based on the mom, is derived first in the paper. it is proved that the variable phase center of the lpda is not superposition in the e - plane and the h - plane

    文中採用矩量法，首次導出了基於矩量法多分段計算可變相位中心的表達式，證明了偵測合一系統中常用的對數周期偶子天線（ lpda ）在e面和h面的可變相位中心不重合。
  10. This article has studied the definite integral used in the physics application from power, force, moment of inertia, orthocenter of plane figure and calculation of inertia moment, mainly utilizing the research method from particulars to generals

    本文從功、力、轉動慣量、平面圖形的形心和慣性矩的計算這幾個方面研究了定積分在物理學中的應用，主要運用了從特殊推廣到一般的研究方法。
  11. Through analyzing the basic situation, outside macro circumstance and industry circumstance, and then studying the general investment opportunities, the author has illustrated that tmt total strategy on diversified development is realistic and reasonable with swot model ; clarified that market investment chances lie in the extending of enterprise ' s core competence on the basis of strategy asset and the structure ' s reconstruction of production matrix through analyzing industry structure with bcg matrix ; defmitude the path choice of tmt investment strategy. in the last part of this paper, the author selects four representative cases : investing technology center, investing air spring, annexing plastic company and buying insulated company to analyze the investment decision, executing proceed and the realization of investment strategy. the author make a whole study on the case that how does enterprise realize relative diversification development by investment

    通過分析時代新材公司基本情況以及外部宏觀環境、行業環境，對一般投資機會進行研究，用swot模型闡明了時代新材總體戰略定位於相關多元化發展的現實性和合理性；通過bcg矩陣分析產品的行業結構，清晰了市場投資機會在於企業基於戰略資產的核心能力延伸、在於產品矩陣的結構重築；在發展戰略的基礎上明確了時代新材投資戰略著眼于技術能力的鞏固、生產手段的提升、新市場的拓展：面對投資戰略的取向，作者選取投資技術中心、空氣彈簧、並購注塑公司、絕緣公司等四個有特點的案例，分析項目投資的決策和實施過程，體現了投資項目與投資戰略的互動性。
  12. The following code demonstrates drawing a filled rectangle on a form at run time

    下面的代碼演示如何在運行時在窗體上繪制實心矩形。
  13. This article has studied the definite integral in the physics application from the plane figure of the merit, the strength, the rotation inertia, shape heart and moment of inertia computation these aspects, mainly utilized from has specially promoted to the general research technique

    本文從功、力、轉動慣量、平面圖形的形心和慣性矩的計算這幾個方面研究了定積分在物理學中的應用，主要運用了從特殊推廣到一般的研究方法。
  14. In chapter 4, method of moment ( mom ) solution of transient electromagnetic scattering by perfect conducting surfaces is discussed by dealing with time - domain integral equations ( tdie ' s ). rectangular patches model and triangular patches model are compared and their applications are exploited. in the mean time reference [ 42 ] and [ 61 ] are recruited

    其中第四章通過求解時域積分方程給出了良導體表面瞬態電磁散射的矩量法解，比較了矩形貼片模型和三角貼片模型並拓展了它們的應用，補充了文獻[ 42 ]和[ 61 ]的內容；第五章工作重心是計算機顯示器屏蔽箱體的設計，對通風問題給予了充分考慮。
  15. In this dissertation, we have made detailed theoretical study and numerical computing on some new types of helical groove sws including the conductor - centered rectangle - shaped helical groove and the conductor - centered arbitrarily - shaped helical groove ; several important new conclusions and valuable results are achieved and listed as the followings : 1

    本論文從理論研究和數值計算兩方面對一類新型的具有中心導體軸的矩形螺旋槽慢波系統以及我們提出具有中心導體軸的任意槽形螺旋槽慢波系統進行了深入的研究。主要工作成果和創新點在於： 1
  16. The paper analyzed the struture of the tri - eccentric butterfly vavle at length, defined the tri - eccentric butterfly valve, educed the geometry function and its characteristic about the section of the butterfly disc. the results indicate : the parallel contour line across butterfly disc thickness is normal ellipse, thereby eslablished function relations between its geometry parameters ( long axis and short axis ) of three primary sections of the butterfly disc and the tri - eccentricity ; in order to avoid interference between the butterfly disc and the valve seat as well as the valve body, combining the torque, we obtained the feasible range about the rotation center of the tri - eccentric butterfly vavle

    本文主要分析了三偏心蝶閥的結構，給出了三偏心的定義，推導出了蝶板截面的幾何方程及其性質，結果表明，沿蝶板厚度的平行截面輪廓線為標準的橢圓形，進而推導出了蝶板幾個主要截面的幾何參數（長軸、短軸）與三個偏心之間的函數關系；考慮到蝶板啟閉過程中避免與閥體及閥座發生干涉，結合蝶板的啟閉扭矩，確立了三偏心蝶閥回轉中心的適宜區域。
  17. The air bearing is the most important part of an attitude control system simulator for simulating a satellite moving in the weightless circumstance. performance of a satellite attitude simulation system based on air bearing is decided by the inertia matrix and gravity disturbance torque arising from a difference between mass center and rotation center, and air bearing can be used to simulate the algorithm of on - line mass - property parameters identification on the ground. so the problem of mass - property and gravity disturbance torque identification for satellite and air bearing is studied in this thesis

    氣浮臺能夠模擬衛星在軌失重條件下的姿態運動，是衛星姿態控制系統物理模擬的核心部件，其轉動慣量和質心偏移引起的重力干擾力矩等決定了基於氣浮臺的衛星姿態物理模擬系統的性能，並且利用氣浮臺可以實現衛星質量特性在線辨識演算法的地面物理模擬驗證，因此本文對衛星和氣浮臺的質量特性及干擾力矩在線辨識問題進行深入研究。
  18. The azimuths of the central principal axes of the dangerous sections on the frame of bulldozer are determined. the inertia moments to the central principal axes of the dangerous sections on the frame are calculated. this paper also determines the positions of the dangerous points and calculates the stress values of dangerous points on the dangerous sections

    分析了推土機臺車架在最危險工況下的受力狀況，確定了臺車架危險截面的形心主軸的方位、計算了臺車架危險截面對形心主軸的慣性矩、確定了危險點的位置、計算了危險面上危險點的應力值。
  19. In the thesis the economic and development strategy that is fit on the peculiarity of center is formulated with swot method on the basis of analyzing and calculating the present internet industrial situation, combining the demand of chaoyang city information center mechanism development, making use of the relevant enterprise strategic administration theory, analyzing the overall management environment, strength and weakness of information center, utilizing ration analyzing efe matrix and ife matrix. at the same time, the suggestions are made for implementing strategy

    本文通過對當前網際網路產業現狀的分析及預測，並結合朝陽市信息中心產業化發展的要求，利用企業戰略管理相關理論，對信息中心的經營環境、優勢劣勢進行了較為全面的分析，運用了定量分析的外部戰略要素評價矩陣（ efe矩陣）和內部戰略要素評價矩陣（ ife矩陣） ，在此基礎上通過swot分析法提出了適合中心自身特點的經營發展戰略。同時對其戰略實施提出了建議。
  20. On the base of brief introduction simple theory of genetic algorithms, we discuss the value of each genetic operator and the means of genetic operation. correct scheme of genetic algorithms is given out according to the special bolted sphere node. the genetic algorithms optimal program is compiled in the environment of matlab using the method of transferring parameters among the main function and the sub - function

    為此，首先分析了螺栓節點球的球心誤差，並通過矩陣變換理論給出計算球心誤差的公式，進一步討論了自動分度角度的計算方法；在簡介遺傳演算法的基本原理的基礎上，對各遺傳運算元的取值及遺傳操作方法進行了討論，針對典型的螺栓節點球零件給出了具體的遺傳演算法執行方案；通過matlab軟體編程環境進行程序的編制，利用主函數和子函數之間參數傳遞的方法實現了遺傳演算法優化，並且編制了圖形用戶界面，對優化結果採用圖文結合的形式輸出。
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