direction of vector 中文意思是什麼

direction of vector 解釋
矢量方向
  • direction : n. 1. 方位，方向；范圍，方面。2. 〈pl. 〉 指揮，指導；管理。3. 〈常 pl. 〉指示，命令，吩咐；用法說明。4. 導演；（樂隊）指揮。5. 寄發地址。6. 趨向，傾向。
  • of : OF ＝Old French 古法語。
  • vector : n 1 【數學】向量，矢量，動徑。2 【航空】飛機航線；航向指示。3 【天文學】幅，矢徑。4 【生物學】帶...
  1. The direction of the electric field vector is indicated in each picture.

    每張照片上都標出了電場矢量的方向。
  2. A vector quantity whose magnitude is a body ' s speed and whose direction is the body ' s direction of motion

    速度一種向量，其量值為物體的速率，其方向為物體運動的方向
  3. While two ( or more ) electromagnetic waves of the same frequency, same direction of vibration, same phase or constant phase difference superpose in space, the amplitude of composite wave is vector sum of the amplitude of each wave

    由兩個（或兩個以上）頻率、振動方向相同、相位相同或相位差恆定的電磁波在空間疊加時，合成波振幅為各個波的振幅的矢量和。
  4. Line integral convolution ( lic ) is one of texture - based methods for vector field visualization. even in the vector direction changing sharply fields, the method can show the direction of the vector field well, and display details of the vector field better. in addition, it can fully disclose the relativity among every spot of the vector field

    線積分卷積（ lineintegralconvolution ， lic ）方法是一種基於紋理生成技術的矢量場可視化映射方法，線積分卷積法能連續反映場中各點切矢，即使在矢量方向變化很大的區域，也能揭示出矢量的方向，可以較好地表達出矢量場的細節。
  5. 3. the solution for the distribution of potential internal the dielectric ellipsoid has been obtained by means of ellipsoidal coordinates, and has obtainted the expression of the polarization field strength in the dielectric ellipsoid, calculated the included angle value of polarization vector and the external field vector, making programe to compute to get the relation shetch between the included angle value of polarization vector and the external field vector and we have discussed the result and hold that the direction of polarization field strength with that of the external field don ’ t always strict antiparallel

    二、討論了帶電粒子在均勻電磁場中的相對論運動規律。三、討論了在均勻電場中電介質橢球體的極化規律。證明了電介質橢球內的極化場強方向與外電場方向並非嚴格相反，只有當外電場與電介質橢球的某一主軸平行或者當橢球體三半軸的大小都相等時，極化場強方向與外電場方向才嚴格相反。
  6. Project pursuit can be used to project high dimensional data to low dimensional space and find the optimum projection vector of data in one dimension space by data character of research units, which can comprehensively evaluate the value and direction of every index

    該方法可以依據樣本自身的數據特性尋求最佳投影方向，從而判斷各評價指標對綜合評價目標的貢獻大小和方向。
  7. A new direction of arrival estimation method is proposed using a single vector hydrophone, which is composed of three spatially co - located but orthogonally oriented velocity hydrophone plus another co - located pressure hydrophone

    摘要提出了一種基於單個矢量水聽器的二維波達方向估計方法，該矢量水聽器由三個空間軸向垂直的振速水聽器和一個聲壓水聽器構成。
  8. A vector hydrophone is composed of two or three spatially co - located but orthogonally oriented velocity hydrophones plus another optional co - located pressure hydrophone. this paper introduces an underwater acoustic eigenstructure esprit - based algorithm that yields closed - form direction - of - arrival ( doa ) estimates using a single vector hydrophone

    矢量水聽器是由質點振速傳感器和聲壓傳感器復合而成的，相對于傳統的聲壓水聽器，可以獲取水下聲矢量信號，為水下信號的檢測和估計提供了更為豐富的聲場信息。
  9. The output of vector hydrophone contains the spatial direction information, in the other word, the output has different phase gradient to signal with different direction

    它是利用了矢量水聽器四個陣元的輸出所蘊含的空間方位信息，通過對一個方向信號延遲的補償相減達到此方向信號的抵消的目的。
  10. Presents a method for sfs based on model of polyhedron. we carry out the algorithm by solving a overdetermined linear equations which is constructed through the distributing of the vector field. the algorithm can reconstruct 3d surface from photometric stereo image given the direction of illumination

    針對目前「從明暗恢復物體形狀方法」存在的問題，提出了以多面體模型為基礎的快速演算法，根據向量場的分佈建立關於物體表面深度信息的超定線性方程組，在最小二乘意義下求得物體表面的深度值。
  11. Airborne gravimetry is applied to rapidly get extensively and precisely well - distributed information of the earth gravity field in order to meet the needs of geodesy, geophysics, oceanography, exploration, space - science and the other fields. airborne gravimetry includes scalar airborne gravimetry and vector airborne gravimetry. scalar airborne gravimetry is used to get the value of the gravity acceleration, and vector airborne gravimetry can get not only the value but also the direction of the gravity acceleration

    它可以快速獲取精度良好、分佈均勻、大面積的地球重力場信息，而且能夠在一些難以實施地面重力測量的特殊地區如沙漠、冰川、沼澤、原始森林等進行作業，從而能夠滿足大地測量學、地球物理學、海洋學及資源勘探等學科和領域對地球重力場信息的需求，並能為空間科學提供強有力的地球重力場保障。
  12. In the motion, the direction of angular momentum vector changes every moment, because there is a torque caused by gravity act on the wheel, then the wheel rotate itself and rotate around the fixed point

    車輪進動實驗：在進動中，角動量的矢量方向不斷改變，是因為受到一個由重力產生的力矩，使車輪在自轉的同時又繞支點轉動。
  13. Sts produces substantially better visual results. sts is faster than lic ( linear integral convolution ) texture - based method. 2 ) in order to overcome the lic ' s shortcoming that only presents direction of the vector field, multi - granularity lic and image blend technique which can present the magnitude and direction at one time are proposed

    2 ）提出了多粒度lic紋理和圖象混合技術，它們能很好地同時表示矢量的大小和方向，從而克服了lic紋理方法只能表示矢量方向而不能表示矢量大小的缺點。
  14. And the converter will work on the strategy of vector control with the definitive direction of the stators magnetic field. also, the thesis develops the algorithm to corroborate the magnetic field ' s direction by the state ' s current and voltage. to validate the theory analysis of bdfg

    根據理論分析和模擬的結果，本文提出級聯式無刷雙饋發電機的控制策略是基於定子磁鏈定向的矢量控制方法，並推導了用定子側電壓電流量來確定定子磁鏈方向的演算法，繪制了相應的閉環控制框圖。
  15. The contributions done are as follows : according to the mathematical model of doubly fed motor and the theory of vector control, a unit power factor of rotor control scheme is proposed. in the doubly fed adjustment system, in order to control magnetic torque of motor this scheme is designed by controlling the reverse direction between rotor voltage and current to keep the vertical direction between rotor current and flux. it is known from theoretical analysis that for partly decoupling this scheme is only effective under sub - synchronization speed, but not control the system and obtain steady state since speed adjustment system ca n ' t adjust the magnitude of rotor flux under sup - synchronization

    而傳統的無速度傳感器雙饋調速矢量控制系統，由於採用磁鏈定向方法，在同步速附近存在較大的工作死區，針對上述問題，本文做了如下的研究工作：本文從雙饋電機的數學模型出發，根據矢量控制的基本原理，提出了一種轉子側功率因數為1的雙饋電機矢量控制方案的設想，即在雙饋調速時採用轉子電流定向的方法，並控制外加轉子電壓與轉子電流始終反相，以保持了轉子電流與轉子磁鏈矢量垂直，通過控制轉子電流的大小來達到控制電機電磁轉矩的要求。
  16. There are several ways of estimating direction of arrival in use of the vector hydrophone : acoustic intensity detection, beam revolving and vector equations

    利用矢量水聽器進行方位估計的方法主要有聲強檢測、旋轉波束和矢量方程組等。
  17. The asynchronous motor is widely used for its simple construction, ruggedness, high working reliability, relatively low cost, and high environmental adaptability. it is suit for the direction of high voltage, high speed and large capacity. vector control is its ideal speed modulation method. the harmonics of three - level inverter are less than the traditional two - level inverter ’ s, and it is convenient to realize high sinusoidal voltage output. the maximum voltage strength which each electric component bears is small, and it is easy for three - level inverter to realize large capacity. the research on the asynchronous motor vector control based on the three - level inverter is one novel work

    異步電機結構簡單、堅固耐用、運行可靠、成本低、環境適應性強，容易向高壓高速和大容量方向發展，獲得了廣泛應用，矢量控制為其理想的調速方法;三電平逆變器輸出端諧波少，有利於實現輸出電壓的正弦化，且單個開關管承受的最大電壓小，適合向高壓大容量方向發展。對基於三電平逆變器的異步電機調速系統開展矢量控制研究，是一件有意義的工作。
  18. Nor : uses the direction of the normal vector as coordinates. this is very useful when creating certain special effects ( see below )

    法向:使用法向量的方向作為坐標。這在創建某些特效時非常有用（見下文） 。
  19. To investigate the relationship between foreign trade and economic growth, this essay begins with an examination of the correlation & integration properties of the statistical data of gdp, foreign trade, consumption, investment, labor and industrial structure before and after reformation - opening of china, undertakes a system cointegrating analysis and exams granger causality tests based on vector error - correction model, then carries some regressive analyses according to the causal direction of these variables

    為了發現對外貿易和經濟增長的關系，本文首先檢驗了我國改革開放前後gdp 、對外貿易、消費、投資、勞動和產業結構統計數據的相關性和單整性，之後對它們進行系統的協整分析並在此基礎上用誤差修正模型進行granger因果關系檢驗，然後根據因果關系的方向進行回歸分析。
  20. According to minimum mean absolute difference criteria ( mad ), our paper uses three - step search algorithm to get the block vectors in two sequential images. main direction of object motion could be obtained by classifying and the average vector on main direction is the vector of whole object. this thesis starts with an introduction of the motion analysis

    根據最小平均絕對差值（ mad ）準則，利用三步搜索演算法，計算出相鄰兩幀視頻圖象中各子塊的運動矢量，該演算法通過對運動矢量場中的運動矢量進行統計、分類，找到物體運動的主要方向，而主運動方向上的平均運動矢量就是物體運動的整體矢量。
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