輸葉效率 的英文怎麼說
中文拼音 [shūyèxiàolǜ]
輸葉效率
英文
blade efficiency-
The equation including the nonlinear dispersion, i. e. the modified nonlinear schrodinger ( mnls ) equation, is a better model. in this thesis, we take mnls solitons as a model for femtosecond soltions. then based on the recently developed direct perturbation theory for perturbed mnls equation, we study the raman self - frequency shift of femtosecond solitons and its suppression by the means of frequency filters. for this purpose, first, we define the physical parameters of mnls solitons ; next, through the direct perturbation theory for perturbed mnls equation, under adiabatic approximation, we obtain the evolving parameters of mnls soliton on our questions and then choose the parameters of frequency filters based on it ; at last, we directly numerically simulated our questions by split - step fourier ( ssf ) method after improving the arithmetic of the differentiation of the nonlinear item for satisfying mnls equation
本論文以mnls孤子作為光纖飛秒孤子的模型，通過新近建立的mnls孤子直接微擾理論，研究光纖中由拉曼效應引起的飛秒孤子在傳輸中的自頻移，以及通過頻率濾波對自頻移的抑制。為此，首先給出描述mnls孤子的各物理量，然後用mnls孤子直接微擾理論，解析地得到這些問題絕熱近似下的孤子參數演化，並由此選擇頻率濾波的參數，最後用分步傅里葉方法，在對非線性項微商的演算法做出了適合於mnls孤子的改善後，對拉曼效應及頻率濾波進行了直接數值模擬，其中頻率濾波參數用微擾理論確定。Distinctive centrifugal impeller to handle clean medium not containing solid particles, featured by little vibration, low noise and high efficiency ; open impeller to handle unclean liquid containing solid particles and short fiber, featured by stable operation and non - clogging
採用獨特的離心式葉輪，供輸送不含固體顆粒等清潔的介質，振動噪音低，效率高；採用開式葉輪，供輸送不清潔帶有固體顆粒及短纖維的液體，運行平穩、不堵塞。A x - band six - cavity tro is studied. with the voltage 760kv 6ka and the magnetic field 2. 6t in the simulation, output power is about 1. 5gw is obtained, and interaction efficiency is 31 %. a noveland high accurate numerical synthetic technique is presented for determining the high frequency characteristics of six - cavity with open boundary
對粒子模擬的輸出微波功率的作出診斷，找到讀取微波功率快速有效的方法：在電場和磁場同相的前提條件下，對時域波形進行傅立葉變換，微波功率頻域的二倍頻所對應的幅度即為微波x波段渡越輻射振蕩器的理論和實驗研究平均功率的大小。Synergist could improve photosynthetic characteristics of lower leaves, enhance the content of chlorophyll and photosynthetic rate of rice ; and the conductance to h2o and transpiration rate, inner condition of nutrient transportation and absorption power of rice root system were improved
增效劑對水稻植株下部葉片光合性能有一定影響，促進葉綠素含量增加、光合速率增大；還可提高處理水稻植株的氣孔導度和蒸騰速率，改善養分在植物體內的運輸條件，增加根系吸收養分的動力。This thesis gives a brief introduction to basic theory of wind power, construction of wind farm and commissioning and operation of wind turbine by illustrating the 3rd phase extension project of ningxia electric power group co., ltd helanshan wind fram. based on the specific study on the engineering construction and the domestically and globally popular 850kw wtg, further by comparasion of the power output rate of g52 and g58, we can prove that with substitute of new material and new technology, larger capacity wtg will become popular. especially when the running diameter of blades enlarged, more power produced at same wind speed ; and the high efficiency will be further guaranteed if the gearbox, major shafting equipment be checked and maintained regularly
根據對實際工程建設的具體研究，對我國及國際上主導機型850kw風機的具體分析，以及對g52和g58風機輸出功率的比較，更進一步證明在新的技術和材料替代下，更大型的風力發電機組將會替代現有主導風機機型，特別是在風機葉輪轉動直徑增大后，相應的輸出功率在同等風速下會有明顯增加，更好的利用風能並轉變為電能;齒輪箱作為風機中主要傳動設備，只有按維護要求並根據實踐經驗定期檢查易損部件，才能使風機安全高效的運行，提高風機的經濟運營效率。As a efficient transportation method, container - transportation has lots of advantages and has developed very quickly since half the 20 century. the management of container is of great importance in the international container transportation
集裝箱運輸作為一種先進的運輸方式，它具有裝卸效率高、勞動強度低、貨損小、運輸質量高、運輸成本低、實現「門到門」運輸等特點，在上個世紀後半葉得到了迅猛發展。分享友人