旋度 的英文怎麼說

中文拼音 [xuándù]
旋度 英文
absolute rotational stiffness
  • 旋 : 旋Ⅰ動詞1 （旋轉） whirl 2 （用車床切削或用刀子轉著圈地削） turn sth on a lathe; lathe; pare Ⅱ名詞...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  1. From the numerical modeling results, it can be found that there is a clockwise gyre in the middle part of bohai sea, whether in wintertime or in summertime. in summer, the clockwise gyre corresponding to the high - temperature and low - density center in the middle bohai sea is mainly dominated by the density circulation. and in winter, it is mainly dominated by the wind stress curl

    通過數值模擬結果發現，在渤海中部，無論冬季還是夏季，都存在一個順時針的渦旋運動，夏季，對應于渤海中部的高溫低密中心，其流場主體部分呈順時渤海冬夏季環流特徵及變異的初步研究針向旋轉，這主要是密度環流占優的結果，而冬季的順時針向的旋轉，主要是海面風應力旋度影響的結果。
  2. Moisture helicity and its application in diagnostic analysis of a heavy rain in jiang - huai basin

    水汽螺旋度及其在一次江淮暴雨分析中的應用
  3. The positive storm - relative helicity center is accompany with low - level jet in 850 - hpa isobaric surface fields

    通過分析我們發現了正的相對螺旋度中心與850hpa低空急流的演變過程是一致的。
  4. The change of the positive stonn - relative helicity value has reflected the severe weak tendency of rainstorm and its system approximately

    相對螺旋度值的變化大致反映了暴雨及其系統的強弱趨勢。
  5. Diagnoses of apparent heat source, apparent moist sink and helicity show that the severe h eavy rainfall is related with them closely

    視熱源、視水汽匯和螺旋度的診斷分析表明，暴雨發生與它們密切相關。
  6. The result indicates that, in the course of the rainstorm in huoshan, there are obvious low - level jet of great intensity, infection of mesoscale shear line, enhancement of plus vorticity which increases intensity of convergence, improves ascending velocity and brings on precipitation, and quick enhancement of helicity which provides the basis to forecast, in addition, convergence of moisture flux and analyzed potential vorticity which reflects baroclinic convective instability sufficiently indicate the characteristics of the rainstorm

    結果表明：此次霍山暴雨發生前後，存在明顯的大強度低空急流，並受到中尺度切變線的影響，而且正渦度的加強引起了輻合加劇，提高了上升速度從而引起降水，同時暴雨發生前螺旋度的迅速增強，也為預報提供了根據，另外水汽通量的輻合以及分析位渦反映出的斜壓對流不穩定都充分體現了這次降水的特點。
  7. Using newton mechanics method discussion about conservation condition of mechanical energy, we get the conservation under zero rotation and implict time in potential formula

    摘要本文用牛頓力學方法分析了機械能守恆的條件，指出只有力滿足旋度（方程式略）的條件，而且在勢能的表達式中不顯含時間，機械能才守恆。
  8. In chapter 3, after introducing the curvature - modified electronic structures of single - wall carbon nanotubes, we study the density of electronic states. the relations between the electronic structures and tube - diameters and chiralities are discussed

    第三章介紹了考慮捲曲效應后的單壁碳納米管的電子能級結構，並在此基礎上研究了單壁碳納米管的電子態密度，以及管徑和螺旋度對其電子結構的影響。
  9. In this thesis, we study the density of electronic states of single - wall carbon nanotubes. the effects of tube - diameters and chiralities on the electronic structures are discussed by means of the analytical expression of band structures of single - wall carbon nanotubes under the consideration of curvature effects

    本文中，我們通過考慮捲曲效應后的單壁碳納米管解析的能級結構表達式，研究了單壁碳納米管的電子態密度，以及管徑和螺旋度對其電子結構的影響。
  10. Finally, the srh, ehi, brn and sbrn, ssietc severe convective storm parameters are introuced. the case study during " 03. 7 " meiyu period showed that all the parameters are effective for prediction of the severe storm ' s occurrence and development, and have a worth of extending in our actual prediction work

    最後，文中綜合介紹了螺旋度srh 、能量螺旋度ehi 、粗理查遜數brn及簡化的粗理查遜數sbrn 、風暴強度參數ssi等強對流風暴的環境參數，並將這些參數應用於實例分析，結果表明：風暴參數產品對中尺度強對流風暴的發生發展有一定的指示作用，值得在氣象業務工作中去推廣。
  11. The contrast analysis for the vertical distribution feature of the simulated physical quantities such as vorticity, divergence, vertical velocity. spiral degree etc suggests that there are a good disposal among the various physical quantities fields in the different stage during the period of sandstorm development, and reveals that the dynamic mechanism of the forming, developing, decreasing of the sandstorm weather and trigger and indication effects of the micro - mesoscale systems and secondary vertical circulation to the occurring and developing of sandstorm in northwest area

    對渦度、散度、垂直速度、螺旋度等物理量的水平和垂直分佈特徵進行對比分析，發現各物理量場在沙塵暴發展的不同時期有著很好的配置，揭示出西北地區沙塵暴天氣的形成、發展、消弱的物理機制和中小尺度系統、次級垂直環流對沙塵暴天氣發生發展的觸發和指示作用。沙塵暴區上空螺旋度垂直分佈為高層負值，低層正值，螺旋度大小的演變與沙塵暴的出現有一定的對應關系。
  12. Severe cumulus precipitation of 3h center appear in the left side of positive stonn - relative helicity center, i. e. positive storm - relative helicity center is not synchronization with cumulus precipitation center of 3h, the cumulus precipitation center of 3h falls behind the positive storm - relative helicity center

    在正的相對螺旋度中心的左側， 3小時后出現3h積雲降水量的高值中心，也就是說正的相對螺旋度中心和3h積雲降水中心不同步， 3h積雲降水中心落後于相對螺旋度中心。
  13. Specific rotation : 70. 5

    比旋度：
  14. The conformal microstrip antenna with some unique character has been applied in many fields, especialy on speedy objects. in this paper, an efficient fdtd algorithm is introduced to analyse the microstrip antenna. firstly, the fdtd formula in descartes coordinate system and in cylindrical coordinate system are obtained from the time _ dependent maxwell equations using the yee algorithm in a calculating region where the dielectric parameters are independent of time and space. the choice of the space discretization units and the time discretization interval are discussed which are decided by the accuracy and stability respectively. the shape and setup of the excitation source are discussed too. the excitation source is chosen to be gaussian pulse in shape. secondly, the mur ' s first - order and second - order boundary condition are deduced in cylindrical coordinate system. the methods of transforming radiation fields from near zone to far zone in the frequency domain and in the time domain are presented when fdtd is applied to analyse the characteristics of far zone. finally, three kinds of microstrip antennas are analysed. they are a slot antenna that lies on a plane ground of a microstrip, a slot antenna that lies on a cylindrical ground of a microstrip and a microstrip line _ fed aperture coupled stacked rectangular patch antenna in cylindrical coordinate system

    本文從麥克斯韋旋度方程出發，建立了笛卡兒坐標下無源空間中均勻無耗媒質的fdtd基本方程和圓柱坐標下無源空間中均勻無耗媒質的fdtd基本方程，詳細討論了fdtd法計算中時間步長和空間步長的選取原則以及激勵源的類型和設置；推導了mur一階和二階邊界條件在圓柱坐標下的差分格式；給出了在用fdtd法計算天線的遠場輻射特性時必需採用的頻域和時域近場遠場變換技術；最後用fdtd法計算了平面微帶縫隙天線、柱面共形微帶縫隙天線和柱面共形微帶層疊天線的輸入阻抗和遠區輻射場，並分析了天線的一些參數的變化對天線輸入阻抗的影響，得出了一些有用的結論。
  15. Again, the electronic effective masses at bottom of lowest - lying conduction band of narrow - gap semiconductor zigzag tubes are inversely proportional to square of their tube - diameters. as for chiral tubes, the electronic effective masses at bottom of lowest - lying conduction band contact with their tube - diameters and chiralities

    此外，鋸齒型窄隙半導體管導帶底的電子有效質量與其管徑的平方成反比關系；對于螺旋型管，其導帶底的電子有效質量不僅與管徑相關，而且與螺旋度也相關聯。
  16. The curl was invented to help describe the properties of moving fluids.

    創造旋度一詞為了有助於描述運動流體的性質。
  17. An application of rotation of continuous vector field

    連續向量場旋度的一個應用
  18. Curl of tensor

    張量的旋度
  19. Curl of vector

    矢量旋度
  20. The negative wind stress curl in winter is basic driving mechanism responsible for the scs warm current

    冬季南海暖流的一個基本驅動機制是南海北部負的風應力旋度。
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