近軸 的英文怎麼說

中文拼音 [jìnzhóu]
近軸 英文
paraxial
  • 近 : Ⅰ形容詞1 （空間或時間距離短） near; close 2 （接近） approaching; approximately; close to 3 （親...
  • 軸 : 軸Ⅰ名詞1. （圓柱形的零件） axle; shaft 2. （對稱部分的直線） axis 3. （圓柱形的纏繞器物） roller; spool Ⅱ量詞（用於纏在軸上的線以及裝裱帶軸子的字畫）
  1. Examples include certain species of lycopodium and selaginella, which have two rows of lateral leaves and one or two rows of smaller abaxial or adaxial leaves

    例如石松屬和卷柏屬，植物體上具有雙行較大的側生葉，還有1行或2行較小的生於近軸面或遠軸面的葉。
  2. In this paper the floral ontogeny and the ovary development of rivina humilis l. were observed. the results showed that ( 1 ) the tepal primordia initiated in 2 / 5 spirals. the abaxial one initiated first, then the adaxial one, finally the lateral two initiated nearly simultaneously. the third one initiated on the position near the first tepal, and there is a gap between itself and the second tepal. ( 2 ) the 4 stamineal primordia initiated in one whorl at the same time. ( 3 ) the carpellary primordium initiated from the abaxial side of flower primordium ; the carpellary primordium grew upwards and towards axis after it was formed, therefore an elliptic orifice was formed at the adaxial position of ovary, which was the remainder of the mouth of ovary before the ovary was fused completely. with the ovary maturing, the orifice was narrowed because of the ovary growth, at last fused completely. the gynoecium is composed of a single carpel. ( 4 ) in the series developmental sections of ovary, the ovular primordium was initiated on the adaxial meristem when the mouth of ovary was formed

    對數珠珊瑚的花器官發生和子房的發育過程進行了觀察.結果表明: （ 1 ）數珠珊瑚花被呈2 / 5螺旋狀發生，遠軸側的1枚先發生，其次為近軸側的1枚發生，最後側方的2枚花被幾乎同時發生，第3枚花被在靠近第1枚的位置發生，第2枚和第3枚之間有1個空隙; （ 2 ） 4枚雄蕊是同時發生的; （ 3 ）心皮發生於分生組織的遠軸側，心皮原基形成后，向上向軸生長，在子房成熟前在近軸側非正中位形成1個孔，該孔為心皮最終愈合前的殘跡，到子房成熟時，因子房的生長孔被擠壓縮小，在進一步的生長過程中愈合.子房由1枚心皮構成; （ 4 ）從子房發育過程的切片看，該植物的胚珠是在子房發生后不久發生的，子房上的圓孔形成時，從近軸側的分生組織發生胚珠原基，由胚珠原基分化出珠被與珠心
  3. At the end of february, the bract attained approximately their full size, and a pair of anatropous ovules were initiated on the adaxial surface at the base of the fertile ovuliferous scale

    2月底，苞片體積不再發生變化，珠鱗膨大端的基部的近軸面分化出2個倒生胚珠。
  4. The axis and two limbs of anticline are favorable for oilsand distribution where have well - developed faults

    在構造的軸部及靠近軸部的兩翼，斷裂發育，是油砂分佈的有利部位。
  5. In the early neurula, cortactin staining signals were detected in the developing primodium of forebrain as early as 10. 5 hpf ( hours post fertilization ), at the same time the tailbud areas were highly stained too. later, the staining was concentrating in the developing neural rod while paraxial mesoderm derivatives were not stained

    在早期神經胚，神經系統中的前腦原基最先出現染色，並保持頭尾兩端處染色最強的圖式，隨后，染色集中分佈在發育中的神經龍骨中，但近軸中胚層細胞沒有染色。
  6. This thesis was divided into eight chapters, and the main results and innovations obtained here can be summarized as follows : ( 1 ) the physics model of tsrs in frequency conversion crystals has been built up firstly. based on quantum - mechanical viewpoints and the following physical processes and parameters : the two - photo interaction of light with matter, paraxial diffraction of stokes, langevin noise sources, reflection at the faces and the edges of crystals, gain coefficient, beam aperture, pulse width and fluence of 3, the physics model of tsrs in kdp and kdp crystals acting as high - fluence frequency convector and the paraxial operator maxwell - bloch - langevin equations have been built up

    全文共分八章，取得的主要成果及創新點如下： （ 1 ）首次建立了諧波轉換晶體的tsrs物理模型本文根據量子力學原理，在考慮如下物理過程和參量的基礎上：光與物質的雙光子相互作用； stokes光的傍軸衍射； langevin （郎茲萬）噪聲源；晶體表面反射和端面反射；增益系數、光束口徑、脈寬和三倍頻光能量密度，推導出高通量激光在kdp和kd ~ * p諧波轉換晶體中的tsrs物理模型和空間上的近軸算符maxwell - bloch - langevin方程組。
  7. The main results achieved in this thesis can be summarized as follows : 1. by means of the fourier series expansion, an approximate analytical propagation equation of flattened gaussian beams ( fgbs ) passing through an apertured paraxial abcd optical system is derived, and illustrated with numerical examples, when the transmissivity of the aperture is t ( x ) = cos ( x )

    用傅立葉級數展開法研究了平頂高斯光束通過有光闌限制的近軸abcd光學系統的傳輸特性，導出了光闌透射率為t （ x ） = cos （ x ）時的近似解析傳輸公式，硬邊光闌的情況可作為= 0的特例得到。
  8. On the base of above it, this paper discuss the synthesis of optimum distributed arrays by nonuniform spacing in the sense of dolph - chebyshev. having derived the equations of optimum element distribution, we analyze the exponentially spaced array, which are optimum when the elements are isotropic and equally weighted, and the array by general raised cosine function. the formulate for estimating the sidelobe envelope, beamwidth of the array pattern and clean region width are obtained

    推導了最佳陣元分佈方程，分別對陣元無方向性和等加權時的最佳分散式陣列? ?指數間隔陣列和採用廣義升餘弦加權的最佳分散式陣列進行了分析，推導了天線方向圖旁瓣包絡、波束寬度，干凈掃描區寬度的估計公式，給出了近軸旁瓣電平與陣列參數的關系。
  9. Based on this, a case of typical external self - focusing effect, hot - image, has been analytically and experimentally investigated in this dissertation. the principal work is as follows. ( 1 ) intense laser beam propagation equation, the paraxial wave equation, has been derived

    論文的主要內容為如下幾部分： （ 1 ）從電磁波的基本傳播方程出發，推導了描述強激光在透明克爾介質中傳輸行為的非線性近軸波動方程。
  10. It is shown that the fgb and sgb passing through a paraxial abcd system demonstrate similar irradiance profile at the positions of the equal generalized fresnel number. but the fgb and sgb passing through a paraxial abcd optical system having spherically aberrated lens do not demonstrate similar irradiance profile at the positions of the equal generalized fresnel number. the nearly same irradiance profile at the positions of the equal generalized fresnel number can be achieved if the fgb and sgb have the same a / 2 - factor and waist width

    在此基礎上首次對相同m ~ 2因子、四川大學博士學位論文不同束腰寬度的平頂高斯光束和超高斯光束作了比較，發現具有棋同礦因子、不同束腰寬度的平頂高斯光束和超高斯光束在近軸abcd光學系統中傳輸時，在菲涅爾數相同的兩個面上具有相側的光強分佈
  11. ( 2 ) based on the propagation equation of fgbs passing through unapertured paraxial abcd optical systems, the similar transformation conditions are obtained for the first time, which is expressed as that two fgbs with the same beam order have similar intensity distributions at the two positions of equal generalized fresnel number when they propagate through two ajb, cjdi ( i = l, 2 ) systems. furthermore, a comparison between a fob and a sgb of the same beam a ^ - factor but different waist widths is performed for the first time

    （ 2 ）通過對作為整體的平頂高斯光束在無光闌限制近軸abcd光學系統中傳輸公式的分析，首次得到了平頂高斯光束的相似變換條件，即階數相同的平頂高斯光束在傳輸矩陣為a _ ib _ ic _ id _ i （ i = 1 ， 2 ）的兩個光學系統中傳輸時，在菲涅爾數相等的兩個面上具有相似的光強分佈。
  12. Based on the propagation law of the cross - spectral density function in the space - frequency domain, the properties of polychromatic vector gsm beams through a paraxial optical abcd system are studied. the analytical propagation expressions for the cross - spectral density matrix of vector gsm beams passing through a paraxial optical abcd system are derived, which permits us to study the propagation properties of vector gsm beams, including the propagation - induced polarization changes, effect of the spectrum bandwidth and irradiance distributions in a unique way. there are some applications of the theoretical results

    基於空間一頻率域中交叉譜密度函數的傳輸理論，研究了多色矢量gsm光束通過abcd光學系統傳輸時偏振特性的變化規律，首次推出了矢量高斯一謝爾模刑fgsm ）光束通過近軸abcd光學系統交叉譜密度矩陣的傳輸公式，並對矢量gsm光束傳輸中偏振的變化、譜寬的影響和強度的分佈等進行了統一研究。
  13. The appearance position of hot - image satisfied the rule of z2 = z1 - lv, z2 is mean the image distance, z1 is mean the object distance, and lv is mean the distance between the nonlinear medium. the theory is also validated by the optical propagation software. if n = 1, then the nonlinear medium is only one, lv = 0, and it will satisfy the rule z2 = z1

    四、從非線性近軸波動方程基礎上用散射矩陣理論推導了級聯介質的熱像規律，得出級聯介質的熱像位置滿足z2 = z1 - lv ，其中z2為像距， z1為物距， lv為級聯介質間的距離，並用光傳輸軟體得到了驗證;發現級聯的非線性介質可以看成單一的非線性介質相連，散射點對級聯介質的每一段非線性介質成像;當只有一段非線性介質時，可以認為lv為零，滿足z2 = z1 。
  14. 5. without making the paraxial approximation, a detailed study on the propagation of ultrashort pulsed bessel beams in linear normal and anomalous dispersive media has been performed using the method of fourier transform

    未作近軸近似的條件下，用傅立葉積分變換法詳細研究了超短脈沖貝塞爾光束在正、負色散介質中的傳輸特性。
  15. The condition, under which the paraxial approximation is valid, is given. 4. starting from the rayleigh diffraction integral, the propagation equation of ultrashort pulsed beams in dispersive media has been derived without making the paraxial approximation and slowly varying envelope approximation ( svea ), which allows for relatively large angles

    從瑞利衍射積分公式出發，未作慢變振幅近似和近軸近似的條件下，導出了等衍射長度超短脈沖高斯光束在色散介質中非近軸傳輸方程，可用來處理色散介質較大角度的傳輸。
  16. Based on the theory of primary aberration, the first - order optical parameters are determined at first through its paraxial analysis, flat - field condition, and aberration characteristics

    本文從初級像差理論出發，首先通過近軸分析、平象場條件和像差特徵獲得一階光學參數。
  17. When the spatial parameter a is small, the non - paraxial effect does n ' t affect the temporal profile of the beam. however, when a becomes relatively larger, it influences the temporal profile greatly

    當空間參數較小時超短脈沖貝塞爾光束的時間波形不受非近軸效應影響；然而當空間參數較大時，非近軸效應影響超短脈沖貝塞爾光束的時間波形。
  18. Taking stray light in " shenguang iii " as the study subject and basing on the basic principle of geometrical optics, applying the technological path of paraxial ray and real ray tracing, a new analytic way and data structure, which suits for the specific requirement in analysis and process of ghost images, is presented

    本課題就是以「神光- 」激光裝置中的雜散光為研究對象，針對高功率多程放大系統在鬼像分析與處理方面特殊要求，從光線光學的基本原理出發，應用近軸光線與空間光線追跡技術路線，提出一種新型的分析方法和數據結構。
  19. Starting from the collins formula, a recurrence equation of hermite - cosine - gaussian ( hcg ) beams propagating through a paraxial abcd system with a hard - edged aperture is derived, from which the analytical propagation expressions for apertured hcg beams of any order can be derived by using the recursive algorithm

    從collins公式出發，推導出了厄米?餘弦?高斯光束通過有硬邊光闌近軸abcd光學系統傳輸的遞推公式。由遞推公式，藉助迭代演算法，得出受光闌限制的任意階厄米?餘弦?高斯光束的解析傳輸公式。
  20. Study on fizeau optical synthetic aperture paraxial imaging

    斐索型光學合成孔徑系統近軸成像條件研究
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