聚焦條件 的英文怎麼說

中文拼音 [jiāotiáojiàn]
聚焦條件 英文
focal conditions
  • : 動詞(聚集; 聚積) assemble; gather; get together
  • : Ⅰ形容詞1 (物體受熱失去水分 呈現黃黑色並發硬、發脆) burnt; scorched; charred 2 (著急) worried;...
  • : Ⅰ名詞1 (細長的樹枝) twig 2 (條子) slip; strip 3 (分項目的) item; article 4 (層次; 秩序; 條...
  • : Ⅰ量詞(用於個體事物) piece; article; item Ⅱ名詞1. (指可以一一計算的事物) 2. (文件) letter; correspondence; paper; document
  • 聚焦 : [物理學] (使光或電子束等聚集於一點) focus; focusing; concentrate
  • 條件 : 1. (客觀的因素) condition; term; factor 2. (提出的要求) requirement; prerequisite; qualification
  1. 3. introduced the principle of phase - match and the optics characters of ktp 、 lbo and other nonliner crystrals, demonstrate the optimal focusing conditions. based on a detailed analysis, ktp and lbo are selected as shg and thg cystal, respectively

    3 .簡單介紹相位匹配原理和非線性晶體的選擇介紹了一些紫外晶體的光學特性,並闡述了光束的最佳聚焦條件,經過分析和綜合評價,選擇了ktp和lbo分別作為倍頻晶體及和頻晶體。
  2. 2. we design a configuration of frequency - doubler according to the optimum focus condition and the cavity stability condition | a + d | < 2 and optimize it based on " mode - matching " and " optimum coupling ". 99. 96 % of optical impedance - match efficiency and over 95 % of spatial mode - matching efficiency are achieved eventually by using t = 10 % of input coupler in our experiment

    ( 2 )根據最佳聚焦條件和腔的穩定性( | a + d | 2 )對四鏡環型倍頻腔進行了設計,並分別從「模式匹配」和「最佳輸入耦合鏡透射率的選擇」兩方面著手對腔進行優化,在我們的實驗中採用10的輸入耦合鏡,獲得阻抗匹配效率為99 . 96 ,空間模式匹配效率高於95以上的模式。
  3. Due to its wide bandwidth, krf laser beam is ready to be homogenized by a method called induced spatial incoherence ( isi ) to generate uniform illumination on target, which is critical to eos measurements. a long pulse is also preferred to get a " cold " acceleration of flyer in impact experiments

    在激光能量30耳、脈沖長度50ns 、斑直徑300um 、功率密度8 . 5 10 ~ ( 11 ) w cm ~ 2的下,考察了激光對飛片的加速效果、飛片的平面性與激光的平面性之間的關系。
  4. The conditions for the long distance propagation are discussed in detail. the results are useful in determining the appropriate size of the channel to be preformed and can guide the future research in ultrashort intense laser propagation

    首次利用自恰電子空腔效應分析了超短超強激光在低密度等離子體中的長距離傳輸和自效應,詳細分析了長距離傳輸的
  5. To make pic ( particl - in - cell ) simulations. to set up models of guns and magnetic field and simulate them in the vacuum and plasma, respectively. we found that plasma held back part of space charge effects and improved trajectory of electrons. but beam would oscillate and became instable as accretion of plasma density. by simulating again and again, we draw a conclusion magic could n ' t work when plasma density was more by far than beam electron density. at last a four - stage depressed collector was simulated

    建立電子槍和系統模擬模型,分別在真空和填充等離子體下進行模擬。發現填充等離子體能補償部分空間電荷效應,改善電子束包絡軌跡,提高電子的流通率,但是隨著等離子體密度的增大,束電子會出現振蕩不穩定性,遺憾的是通過反復多次模擬發現本文所用粒子模擬的代表性軟體magic無法用於模擬等離子體密度遠高於束電子密度的情況。
  6. Let us now focus upon the gold ray of non - conditional governance within the language of light allowing it to run through the etheric body and kundahlini

    現在讓我們于光之語內無統御的金色光,讓它運行貫穿以太體和昆達里尼。
  7. Here, aba - induced h2o2 generation and their roles in inducing stomatal closing were investigated by epidermal strips bioassay, laser scanning confocal microscopy and patch clamp with ios5 and its wild type plant as materials. there were no clear differences between wild type and ios5 in the density, shapes and aperture of their stomata

    本文以los5及其相應野生型為材料,採用表皮生物分析、激光掃描共顯微技術及膜片鉗技術研究了nacl脅迫下, aba誘導保衛細胞內h _ 2o _ 2的產生及二者在誘導氣孔關閉中的作用。
  8. And in addition, the paper explores the aspects of internal fluctuation, which is viewed as the random choices of the cognitive subject, how it is depend on the initial conditions and is enlarged by the method of positive feedback with step by step on the views of the nature, material outlook and thought modes. what ' s more, under the controls of the nonlinear interactions, the paper respectively explores the development principle in the culture of technology and science between the west and the east on the aspect of attractors and the order parameters, which result from the cooperation and competition. finally, the paper correctly formulates the different value preference in accord with the attractors and the order parameters, and focuses respectively on the traditions of the eastern pragmatic preference and the western contemplative preference and technological preference

    在此基礎上,從東西方科技文化的發生和起源入手,從耗散結構的觀點出發,考察了認知主體的隨機性選擇這種文化的內漲落因素,是怎樣依託于各自不同的初始?地理氣候,在自然觀、物質觀和思想模式方面一步步得到正反饋式的放大;進而,在文化系統內部種種非線性的相互作用下,從競爭和協同所必然產生的序參量和吸引子兩個方面,分別考察了東西方科技文化不同的發展規律,東方的實用化取向和西方的思辨化、技術化取向的影響機制,從它們在不同時期所發揮的不同作用正面回答了「李約瑟難題」 。
  9. In order to obtain an optimal estimate of the tilt angle and angle velocity, an indirect kalman filter configuration combining a rate gyroscope sensor and an accelerometer is implemented. because of the extreme nonlinearity of the two - wheeled self - balancing robot, application feasibility of nonlinear system control strategy based on linear approximation method, exact linearization and intelligent control have been investigated. according to robustness, balancing performance and environment adaptability, robust tracking control, linear quadratic regulator and fuzzy model reference learning control are implemented to the velocity controller

    針對具有強非線性的前進子系統,論證了基於近似線性化、精確線性化及智能控制的非線性系統控制策略的應用可行性,據此按照不同性能要求設計了三種前進速度控制器:漸近跟蹤魯棒調節器簡單精確,具有良好的干擾抑制能力;二次型最優跟蹤控制器,在耗能最小的下,大大提高系統的平衡能力;而基於動態學習的模糊模型參考學習控制則兼具平衡性能好、環境適應性強、精度高及魯棒性好的優點。
  10. Numerical study on sbs process in fused silica glass under focal pumping

    泵浦下固體介質中受激布里淵散射過程的數值研究
  11. In this thesis, we used the q - switched nd : yag laser pulse focused by lens to pump the cr ~ ( 4 + ) : mg _ 2sio _ 4 crystal, with the pump laser pulse duration and energy of 30ns and 50 mj separately, and got the laser pulse with center wavelength, pulse duration and energy of 1. 22 m, 8. 2 ns and 10 mj on the best work condition. on the base of zhangguowei s approximation about gain - switching and the parameter of cr ~ ( 4 + ) : mg _ 2sio _ 4 crystal, we calculated the time characteristics of cr ~ ( 4 + ) : mg _ 2sio _ 4 laser pulse with rate equation by numerical method, obtained the conclusion that the laser pulse duration is only related to the pump energy and cavity length : the larger the pump energy is, the narrower the pulse duration is ; the longer the cavity is, the wider the

    本論文採用調qnd : yag脈沖激光通過透鏡后縱向抽運cr ~ ( 4 + ) : mg _ 2sio _ 4晶體,抽運光脈沖寬度為30ns 、能量為50mj ,在較佳工作下得到了中心波長為1 . 22 m 、脈寬為8 . 2ns 、能量為10mj的激光脈沖;並在張國威分析增益開關時間特性的近似法基礎上,結合實際的cr ~ ( 4 + ) : mg _ 2sio _ 4激光器的相關參數,從速率方程出發,用數值計算的方法更為精確的模擬了cr ~ ( 4 + ) : mg _ 2sio _ 4激光器輸出激光脈沖的時間特性,得出了激光脈寬只與抽運能量、腔長有關的結論,即抽運能量愈大,脈寬越窄;腔長越長,脈寬則愈寬。
  12. The results show that the probe beam can be induced to focus due to cross - phase modulation from the pump beam under certain conditions

    結果表明,在適當的下,泵浦光能夠通過交叉相位調制效應誘導信號光
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