球面方位角 的英文怎麼說

中文拼音 [qiúmiànfāngwèijiǎo]
球面方位角 英文
spherical azimuth
  • 球 : 名詞1 （以半圓的直徑為軸 使半圓旋轉一周而成的立體; 由中心到表面各點距離都相等的立體） sphere; glo...
  • 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...
  • 方 : Ⅰ名詞1 （方形; 方體） square 2 [數學] （乘方） involution; power 3 （方向） direction 4 （方面） ...
  • 位 : Ⅰ名詞1 （所在或所佔的地方） place; location 2 （職位; 地位） position; post; status 3 （特指皇帝...
  • 角 : 角Ⅰ名詞1 （牛、羊、 鹿等頭上長出的堅硬的東西） horn 2 （古時軍中吹的樂器） bugle; horn 3 （形狀像...
  • 球面 : spherical surface; sphere球面艙壁 spherical bulkhead; 球面車床 spherical turning lathe; 球面反射...
  • 方位 : position; bearing; direction; points of the compass; placement
  1. Many planets ( for example, ganymede, mercury, the earth, jupiter and saturn ) and stars ( for example, the sun ) possess intrinsic magnetic fields. the explanation for their existence and variation remains a great challenge to planetary scientists and astrophysicists. this article attempts to review some recent developments and difficulties in the study of magnetohydrodynamics for the electrically conducting fluid interiors of planets and stars. it is the fluid motions, usually driven by thermal convection, that generate and sustain magnetic fields through magnetohydrodynamic processes in planets and stars. in planets, the magnetohydrodynamic processes are strongly affected by the combined and inseparable effects of rotation, magnetic fields and spherical geometry. the key dynamics involves the interaction between the coriolis and lorentz forces. in the sun, it is the solar tachocline, a thin shear flow layer located at the base of the convection envelope, that plays an essential role in the solar magnetohydrodynamic processes which produce the 11 - year sunspot cycle. some results of a new nonlinear three - dimensional solar dynamo model are also presented

    許多行星（如木衛三，水星，地球，木星和土星）和恆星（如太陽）具有內部磁場.對這些磁場的存在和變化的解釋對行星科學家和天體物理學家是一個巨大的挑戰.本文試圖總結行星和恆星的導電流體內部磁流體力學研究的新近發展和困難.一般由熱對流驅動的流動通過磁流體力學過程產生並維持在行星和恆星中的磁場.在行星中磁流體力學過程強烈地受到轉動，磁場和球幾何位型的綜合影響.其動力學的關鍵方面涉及科里奧利力和洛倫茲力間的相互作用.在太陽中其流線，即處于對流層的薄的剪切流層在太陽的磁流體力學過程中扮演了一個基本的角色，並由之產生了11年的太陽黑子周期.本文也給出了一個新的非線性三維太陽發電機模型
  2. Its main contributions include the following several aspects : firstly, the dissertation constructs the mathematic model of short baseline orientation determination using two geostationary satellites and analyses the applicable conditions of carrier phase interferometry. orientation determination precision is analysed in depth through both the conventional linearized method and monte - carlo computer simulation method, and the mathematical simulation results show that the linearized method has the shortcoming of fairly low elevation error analysis precision in high latitude area so as not to be very appropriate there. by analyzing the definite factors influencing orientation precision, the dissertation develops the concept of orientation dilution of precision, which uncovers the internal cause of exotic error behavior of bi - satellite orientation, and has important guiding significance for practical engineering applications

    本文系統地研究了基於「北斗一號」衛星載波相位干涉測量原理實現地球靜止雙星定向的相關技術，主要研究成果包括以下幾方面:首先，建立了利用兩顆地球靜止軌道衛星進行短基線定向的數學模型，分析了載波相位干涉測量的適用條件;採用傳統的線性化解析法及蒙特卡洛隨機模擬法兩種途徑對雙星定向的精度進行了詳細分析，數學模擬結果表明在高緯度地區線性化解析法由於俯仰角誤差分析精度略有下降而不太適合;在分析定向精度確定性影響因素的基礎上，提出了雙星定向精度衰減因子odop的概念，揭示了雙星定向誤差特殊表現的內部機理，對實際工程應用具有重要的指導意義。
  3. The azimuthal correcting formula on gauss equil - angle spherical surtace and its applications

    高斯等角球面上的方位角改正公式及其應用
  4. Abstract : the attitude error performance of electrostatic gyro should be understood and the relevant error equations must be set up in order to ensure the navigation precision of esgm. the relation between the navigation errors and the attitude errors of gyro was derived by use of spherical triangle. the simulation results show that the temporal performances of the longitudinal and distance errors which come from the initial alignment errors are periodically variational. they also show that the longitudinal and distance errors resulted from gyro drifts are not convergent in time. thus, the effects of initial alignment errors and gyro drifts can not be neglected and must be estimated and compensated

    文摘:為了保證靜電監控器的導航定位精度，需要了解靜電陀螺的姿態誤差特性，建立相應的誤差方程.本文採用球面三角形原理推導了導航定位誤差與陀螺姿態誤差的關系式.模擬結果表明，由初始定向誤差引起的經度誤差和距離誤差的時間特性是周期變化的；由陀螺漂移引起的經度誤差和距離誤差是隨時間發散的.因此，初始定向誤差和陀螺漂移的影響不能忽略，必須對其進行估計和補償
  5. Since the rotational axis of the earth is tilted from the revolution axis by 23. 5, the sun, for example, rises at different directions at different times during the year

    由於地球的自轉軸相對于公轉軌道平面傾斜了23 . 5度，再加上地球的繞日運動，所以太陽東升的方位角會隨日子改變。
  6. The orbit of venus, for example, is inclined 3. 4 degrees to earth ' s orbit, so even when venus is in the same direction as the sun ( “ in conjunction, ” as astronomers say ), most of the time it is too far above or below the ecliptic to cross the sun ' s face [ see top illustration in box on opposite page ]

    例如金星軌道和地球軌道有3 . 4度的夾角，因此即使金星和太陽在同一個方位（天文學家稱之為合） ，大部份時候金星都遠在黃道的上方或下方，而不是橫過太陽表面（見右頁金星凌日的幾何學） 。
  7. The current trends of this field is to acquire the current density of dipole distribution rather than a few dipoles. based upon that, a new model was proposed - dipole layer localization method ( dllm ) : spherical dipole layer was used as source model, on which dipoles were distributed by equilateral triangles ; three concentric inhomogeneous sphere was used as head model, which contains scalp, skull and cortex with different conductance. the dipole distribution and scalp potential tomography were obtained with singular value decomposition ( svd )

    鑒于該領域的研究趨勢已從求取少數偶極子過渡到偶極子分佈密度的獲得，本文提出了新的模型? ?偶極面定位方法（ dipolelayerlocalizationmethod ， dllm ） ：以等邊三角形均勻分佈的偶極子構成的偶極面（球面）作為源模型；包括頭皮、顱骨和皮層的三層同心介質球作為頭顱模型，運用奇異值分解來求解逆問題，從而獲得偶極子分佈和頭皮電位分佈，實現三維成像。
  8. 2 ) we analyse the locomotion equation, trajectory parameter, trajectory ellipse parameter, average angel velocity formula under the condition that we only think about the g - force. we ascertain the relationship of the target place and the moving velocity and flying time by keplei equation, and ascertain the trajectory and the data of the place target landing, finally we analyse the effect on the target trajectory and landing from the earth ' s rotation itself

    （ 2 ）分析了在只考慮地球引力情況下的雷達目標運動方程、軌道面參數、軌道橢圓參數、平均角速度公式;通過迭代求解開普勒方程確定了目標位置、目標運動狀態和飛行時間的關系;確定了雷達目標的軌道、落點數據;最後，分析了地球自轉對目標的軌道和落點的影響。
  9. Four parameters for determining the type of circuit of spherical four - bar linkage are defined. according to the relationship of these parameters, three types of circuit of spherical four - bar linkage are found, which is proved in view of geometry point. base on the theory of sphere triangle, an approach of identifying the circuit and branch defect of spherical four - bar linkage is proposed

    首先提出了四個迴路類型判斷參數，根西安理工大學博士學位論文據這些參數之間的關系，將球面4r機構迴路分為三種類型，並從幾何的觀點進行了證明;然後基於球面三角理論，提出了球面4r機構迴路及分支缺陷識別的轉角符號法，而由空間第一組機構與其等效球面4r機構迴路特性的等效性，此方法對空間第一組機構的迴路和分支缺陷的識別同樣有效。
  10. Next, by lateral comparison with other journals of the same kind, the thesis mainly discusses the globe ’ s orientation and overall operation features, among which the generalization of the globe ’ s idea of edition is the cream of texts ? as for content, it shows concern for the focus of public attention, and covers sensible topics in a flexible way ; as for perspective, it stresses its global characteristic and promotes the exchanges of china with the outside world ; as for the mode of thinking, the globe

    接下來，運用與同類期刊橫向比較的方法，文章著重論述了《環球》的定位及整體運作特徵。其中，對《環球》編輯理念的概括是本文的重點。這就是在內容方面:積極關注社會熱點，巧妙報道敏感話題;在視角方面:突出全球視野，促進中國和世界的互動交融;在思維方面:優化思維方式，以新取勝。
  11. Put forward the technology that locating the defects with spherical surface freewill triangle, estimating the validity of located points with the method of projection the first time

    開展球面任意三角形定位技術研究。首次提出球面任意三角形定位，投影判斷定位點有效性的定位方法。
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