正交平面 的英文怎麼說
中文拼音 [zhēngjiāopíngmiàn]
正交平面
英文
tool orthogonal plane- 正 : 正名詞(正月) the first month of the lunar year; the first moon
- 交 : Ⅰ動詞1 (把事物轉移給有關方面) hand over; give up; deliver 2 (到某一時辰或季節) reach (a cert...
- 平 : Ⅰ形容詞1 (沒有高低凹凸 不頃斜) flat; level; even; smooth 2 (高度相同; 不相上下) on the same l...
- 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...
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Value of 3d - ultrasonography in diagnosis of the fetal cleft lip or complicated cleft palate
三平面正交超聲掃查診斷胎兒唇齶裂的價值In china, because the grade crossing is master in urban road traffic, the occurrence probability of side impact accident is highest, its death rate is only next to front impact ’ s death rate, but the injury rate is first
在我國,由於城市道路交通路口以平面交叉形式為主,側面碰撞事故發生概率最高,其致死率僅次於正面碰撞,而致傷率卻居第一位。A general solution to orthotropic material plane problems
正交異性冪強化材料的平面應力應變分析Based on the fem program on fracture of plane structure developed by professor fu xiaoling of ho hai university, a two demension damage and fracture finite program package which is programed in fortran 90 language is developed. the paper adopts the plane - eight - nodes isoparameters element and compute the developing law of the damage and macro - damage of plane structure under load. considering the original damage and tension and compression damage at the same time, the paper adopts the more reasonable concrete constitute relation of two demension and exponent function model
在河海大學符曉陵副教授所編制的平面結構斷裂有限元程序( dl08p4 )基礎之上,本文用fortran90語言編制的二維損傷-斷裂有限元程序包,程序採用平面八結點等參數單元分析計算平面結構在外荷載作用下損傷及宏觀裂縫的發展規律,考慮了混凝土結構體內存在著初始損傷和同時存在的拉、壓損傷,並且採用更為合理的具有損傷含義的混凝土二維本構關系(即正交異性損傷模型中的本構方程)和指數函數模型建立的並可進行拉、壓損傷可比性換算的損傷演變方程,較為真實地反映了實際情況。Investigation of the behavior of a griffith crack at the interface between two dissimilar orthotropic elastic half - planes for the opening crack mode
位於兩不同正交各向異性半平面間張開型界面裂紋的性能分析The numerical simulations show that the phase plane and amplitude plane in orthotropic fluid - saturated porous media is not paralleled to each other any more though the dispersion caused by the fluid is omitted. it is one kind of non - homogeneous wave. the maximum attenuation is no longer
指出由於介質的各向異性,盡管忽略了流體粘度引起的粘度耗散,正交各向異性液飽和多孔介質中瑞利波的相平面和幅平面亦不再重合,為非均勻波,最大的衰減不再沿波傳播方向。Because the system error is ineluctable for mode, it is necessary to correct the simulation fielde effectively. in this paper, based on the idea of combined eof correction, the interannual simulation of sea surface wind stress anomalies of the tropical pacific ocean by lap two - level atmosphereic model have been corrected, result of corrected erperiment shows that the corrected field is more similar to the observation field, especially on the distribution of the space. three prediction experiments also shew that correcting scheme of combined eof can improve the interannual prediction veracity of model
在本文中,基於「聯合自然正交展開誤差訂正」的思想,將中科院大氣物理研究所兩層大氣環流模式輸出的熱帶太平洋海表風應力異常的跨年度模擬場進行訂正,訂正試驗的分析結果表明,訂正後的熱帶太平洋海表風應力距平場與相應觀測場年際變率分量的相似程度遠遠好於模式模擬的結果,尤其是在空間分佈方面的改善非常顯著;三組跨年度訂正檢驗結果也表明,訂正後的跨年度預測結果明顯好於模式的預測結果。It is usually convenient to replace δs by its components δs1 and δs2 parallel to any two perpendicular axes ox, oy in the plane.
通常用它的分量s1和s2來代替s較為方便,它們分別沿平面內的ox,oy兩個正交的軸線的方向。Then, we establish the finite element analysis models of the antenna in different structure layout, and obtain the corresponding frequencies and model shapes. finally, according to the importance of each object, we set up the model of multiple objects that aims to maximize the first natural frequency and minimize the mass. combining orthogonal experiment and variant weighting coefficient method, we formed an effective multiple objects optimized algorithm basing on the neural network and genetic algorithm
本文首先詳細的敘述了天線結構的各組成單元,闡明了天線反射拋物面的形成原理;然後在ansys軟體環境中建立了不同結構布局下天線的有限元分析模型,分析計算了各種情況下天線的的固有頻率與振型;最後依據天線各指標的重要性,建立了以一階固有頻率最大、質量最小為目標的天線結構多目標優化設計模型,並基於神經網路和遺傳演算法,結合正交實驗和變加權系數技術,形成了一種有效的多目標優化演算法,在matlab平臺下實現了天線的結構多目標優化設計計算程序,求得了天線的最佳結構參數。And pays emphasis on analyzing the system structure and system flow, the core techniques, the channel characteristic and parameters of dvb - t system. the system adopts some core techniques such as cofdm, a lot of tps ( transmission parameter signalling ) insert and guard interval, and so on. so it can withstand high - level ( up to odb ), long delay static and dynamic multipath distortion
論文首先描述了數字電視地面廣播的需求條件,技術難點和目前存在的問題,並重點分析了dvb - t系統結構流程,核心技術及系統通道特性和參數,該系統採用了cofdm (編碼正交頻分多路復用) ,大量導頻信號插入和保護間隔技術等核心技術,使之能抵抗高電平( 0db ) ,長延時的靜態和動態多徑失真,有利於數字和模擬電視的混合傳輸,它的多載波調制模式功能和性能在移動和便攜接收、同頻網等方面具有獨特的優勢。Abstract : variations of flow pattern, flow velocity in deep poo l and side bar, mainstream thread, and water surface, caused by excavation project, are investigated by two - dimensional mathematical model in an orthogonal curvili near coordinate system. the change of bed - load transport rate, and redeposition r ate are predicted. the influences of the excavation project on navigation are ana lyzed. grid - type and flat - type excavation alternatives are proposed and discuss ed
文摘:採用正交曲線坐標系下的河道平面二維數學模型,研究了嘉陵江何家磧邊灘采砂后河道流勢、流態、灘槽流速、主流位置、水面高程及比降的變化規律,預測了采砂方案完成後卵石推移質輸沙率變化及其對航道的影響,並對格形開挖和平整開挖方案進行了比較分析The author advances that the shear connector is simulated by two spring elements, which are vertical to each other and parallel to the interface between steel and concrete, and one multipoint constraint element, mpc element, which is vertical to the interface. the author also puts forward that the crack of the deck is simulated by the gap element which ca n ' t support longitudinal tensile force but can support longitudinal compressive force
提出了以正交的兩個平行於鋼和混凝土界面的彈簧單元及一個垂直於界面的多點約束( mpc )單元來模擬剪力鍵,以小間隙接觸( gap )單元來模擬混凝土橋面板的開裂,模型中忽略了混凝土板與鋼梁接觸面間由摩阻而產生的粘著力。Through analyzing bed ' s response to wave, in the condition that super - stratum is more hard and second - stratum is more soft in region of interest, super static interstitial hydraulic pressure amplitude die away rapidly between stratums, before in sight of boundary between hard and soft stratum, plane effective pressure increase to max. shear stress reach peak value when bed thickness is approximately 2. 7 meters, then it will decrease to the minimum on the place where the flexible soil has a common boundary with the rigidity, so the boundary is the most destroy plane on engineering. on the basis of reconnaissance in situ, in normal situation of sea, the structure slides to the basin along the boundary
通過對底床在波浪下的響應分析,對于研究區底床上層較硬而第二層較軟的情況,超靜孔隙水壓力幅值在層間交界處迅速衰減,在臨近硬、軟地層交界處前,水平有效應力增至最大,剪切應力在底床厚度大約2 . 7米左右達到峰值,然後減小,到硬、軟層土交界位置,達到最小,因此這個界面就是最容易發生破壞的工程軟弱面,現場勘查證明,即使在正常海況下,構築物也會沿坡以此交界面為滑動面,緩慢向「盆」底滑動。The thesis presents an effective method for the design and modeling of ltcc embedded capacitors and inductors, based on which the multi - layer capacitors and inductors are designed and realized. the measured results agree very well with the electromagnetic designed responses, which shows the validity of the design and implementation
提出了ltcc內埋式元件完善的設計方法和流程,據此設計和製作了平面曲折形和螺旋形電感以及多層垂直交叉型電容,測量與模擬結果的吻合驗證了設計和實現方法的正確性。This paper analyzes and discusses the problems involving the design of the electronic control ( ec ) and numerical control ( nc ) systems for a new type nc grinder - machine used to grind planar quadratic and annular enveloping worms based on novel four - axis - interpolation, in which a central fabricating method is introduced
摘要本文作者設計了新型四聯動平面二次包絡蝸桿數控磨床的數控及電控系統,該磨床採用虛擬中心的方法,通過兩正交軸的圓插補及磨頭基座的自轉實現了傳統蝸桿加工磨床上的砂輪工作面的平面回轉運動,克服了傳統加工蝸桿工作層面多,結構復雜,加工精度、效率低等缺點。Secondly, the problem of the curve - surface mutual transforming and smooth - finishing have been analyzed farther. for the surface intersecting problem : owing to the introduction of the boundary points, as long as the intersecting points on a certain line, the full intersecting line can be gained. the intersecting line either intersects at the boundary of the triangle surface or forms the loop ; during the course of tracking, the selecting of the pace is restricted by the curvature, the number of the gained intersecting points are not in proportion as the chord - length ; the intersecting points not only record the coordinate and store the parameter
對兩曲面求交問題,當曲面細化足夠小時,曲面求交可近似看成曲面與平面相交問題,引進了邊界點的概念,因此只要知道交線上的任意點,就可以將跨越許多曲面片的整條交線計算出來,所求出的交線或者跨越曲面的邊界,或者形成交線環;從初始點出發跟蹤求解整條交線的過程中,步長的選擇採用了通過曲面片曲率來約束的方法,用該方法求出的交點在不同曲面片上的分佈數目不與弦長成正比;該求交方法包含了各曲面片的邊界線與交線的交點的求解,可獲得邊界交點的坐標值及其參數值。We have the following results. part i the computations of the bergman kernel functions the bergman kernel function plays an important role in several complex variables. s. bergman introduced the concept of bergman kernel function in 1921 when he studied the orthogonal expansion on d in c and he generalized it to the case in several complex variables in 1933
Bergman核函數的顯式表達bergman核函數在(單、多)復變函數理論的發展過程中起著十分重要的作用, bergman在1921年研究復平面中區域d上的正交展開,其研究結果導出了一個核函數k _ d ( z , ) , ( z , t ) d d 。A new algorithm is presented to determine infinite homography matrix and camera intrinsic matrix parameters under one camera motion set from the matched - point sets on two orthogonal planes
摘要論述由位於正交平面上的特徵點對集合復原無窮遠單應性矩陣和攝像機內參數的新演算法。Camera self - calibration algorithm from matched - point sets on two orthogonal planes
基於雙正交平面上匹配點對的攝像機自標定演算法Completely perpendicular planes
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