波庫塔 的英文怎麼說
中文拼音 [bōkùtǎ]
波庫塔
英文
pokuta-
The one selected by charles xii. balashov could not help flushing with delight at the felicity of this reply. balashov had hardly uttered the last word poltava when caulaincourt began talking of the badness of the road from petersburg to moscow and his own petersburg reminiscences
巴拉瑟夫還未把「波爾塔瓦」這最後幾個字說出口，科蘭庫爾就談到從彼得堡到莫斯科的那條道路怎樣難走，並且想起了他在彼得堡經歷的情景。The paper makes out the calculating program of the surges in throttled., simple and differential surge tanks with the method of runge - kutta, fortran 90 and the basic formulation of surge tank on the visual fortran background compiler. 4
在windows環境下，使用visualfortran編譯平臺，從調壓室的基本方程出發，採用四階龍格庫塔方法，用fortran90語言編制了阻抗式、簡單式及差動式調壓室的水位波動計算程序。We also use fourth runge - kutta method simulate the opcpa process in the case of considering signal and pump temporal profile and phase mismatching and get gain and spectra properties at different pump temporal profile
我們還在考慮時間波形和相位失配的情況下，利用四階龍格-庫塔法對光參量啁啾脈沖放大進行了數值模擬計算，得到了不同泵浦光時間波形時的增益與頻譜特性。Secondly, basing on the theory of on - off gain of small signal, the raman gain coefficient for frequency shift between 0. 5 and 20 thz of standard sigle mode optical fiber is measured by pump - probe method through a super luminescent diode ( sld ) as a broadband small signal probe source. thirdly, numerical simulation analysis of gain characteristic of raman fiber amplifier for c band wdm signal light is made according to the raman gain coefficient of the fiber measured before through target and four rank runge - kutta method. at the invariability of wavelength and maximum power of each of two pumps, schematic of powers of two pumps for best flatness on c band wdm optical gain was found out, at the same time, the factors of resulting in gain saturation is analyzed, too
本文首先應用經典的電磁理論對拉曼光纖放大器的工作機制進行了分析，然後，根據小信號理論推導出的開關增益求出了光纖拉曼增益系數的表達式，採用泵浦-探測波的方法，利用超輻射激光二極體（ superluminescentdiode簡稱sld ）作為探測光源，測量了所用標準單模光纖頻移為0 . 5 - 20thz的拉曼增益系數，之後根據所測得的光纖的拉曼增益系數譜對應用該類光纖構成的放大c波段wdm光信號的拉曼光纖放大器的增益特性採用打靶法和四階龍格- - -庫塔進行了數值計算，在給定了兩個泵浦光源的波長和最大功率后，找出了反向泵浦情況下使c波段wdm光源增益最平坦的兩個泵浦的各自最佳功率，同時也分析了導致信號光飽和的原因。Watch list countries or economies include azerbaijan, belarus, belize, bolivia, bulgaria, canada, chile, colombia, costa rica, croatia, dominican republic, ecuador, guatemala, hungary, israel, italy, jamaica, kazakhstan, latvia, lithuania, malaysia, mexico, peru, poland, romania, saudi arabia, slovak republic, tajikistan, thailand, turkmenistan, uruguay, uzbekistan, venezuela, and vietnam
觀察名單國家或經濟體包括亞塞拜然、白俄羅斯、貝里斯、玻利維亞、保加利亞、加拿大、智利、哥倫比亞、哥斯大黎加、克羅埃西亞、多明尼加、厄瓜多、瓜地馬拉、匈牙利、以色列、義大利、牙買加、哈薩克斯坦、拉脫維亞、立陶宛、馬來西亞、墨西哥、秘魯、波蘭、羅馬尼亞、沙烏地阿拉伯、斯洛伐克共和國、塔吉克、泰國、土庫曼斯坦、烏拉圭、烏茲別克斯坦、委內瑞拉和越南。The water - exit movement of the submarine - based powerless missile which is horizontally or vertically launched is solved. the change trend of force and moment which are put on the missile is given. the effects of ocean current and wave that affect the missile is studied based on the front work
本文建立了導彈出水運動數學模型，採用定步長四階龍格-庫塔（ runge - kutta ）法求解了潛載無動力導彈水平發射和垂直發射的出水運動過程；給出了導彈出水過程中所受力和力矩載荷的變化情況，並在此基礎上分別研究了海流和波浪對導彈的影響。The main numerical method of this code is coming from scheme ( jameson, schimit and turkel ) : using cell - centered finite volume method as spatial discretization tools, and a system of ordinary differential equations for time variable is obtained, which is solved by utilizing five - step runge - kutta scheme as time marching method, introducing artificial dissipation to damp high frequency oscillations near the shock and stagnation point
本論文採用歐拉方程作為控制方程，利用中心有限體積法進行空間離散，得到對時間變量的常微分方程組，採用龍格庫塔多步法進行時間積分，加入人工粘性以消除激波和駐點附近的壓力振蕩等方法來對naca0012翼型的實際流動進行并行數值模擬。Browse natalie portman wallpapers gallery
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瀏覽娜塔莉波特曼桌面庫Based on the theories of bend loss and mode coupling, a model to analyze the characteristics of distributed spatial filtering of bend multimode fiber is given in this paper. then we made numerical simulation by the means of stepwise scan, dichotomy and the four orders runge - kutta. numerical simulation indicated that the distributed spatial filtering of the bend multimode fiber can improve the beam quality
本文從波動理論基礎出發，結合模式耦合理論和彎曲損耗理論，提出了一種用於分析彎曲多模光纖的空間濾波特性的理論模型，並運用逐步掃面法、二分法以及四階龍格-庫塔法對此模型進行了數值模擬。分享友人