wake analysis 中文意思是什麼
wake analysis
解釋
尾流分析-
In chapter 2, a simplified analytical model is presented for the analysis of the bvi mechanism, adopting the beddoes " prescribed wake model. by this model, the azimuthal location and miss - distance of the bvi and the radiation directivity of the bvi noise are calculated and discussed, and some conclusions are obtained
在第二章，使用beddoes預定尾跡模型，建立了一個用於旋翼槳-渦干擾特性機理分析的簡化數學模型，分別對旋翼槳-渦干擾位置、槳-渦干擾距離和聲輻射方向性等進行了計算和分析，得出了有意義的結果。 -
In this paper, some characteristics of flow movement and sediment transport are analyzed by using the flume experiment data. the cross section of compound channel can be divided into four regions : the undisturbed region in main channel, the interactive region between channel and plain, the undisturbed region in flood plain and the boundary region. in the undisturbed regions, the distribution of longitudinal velocity along the depth has the feature of lograithmic. whereas, in the interactive region, the longitudinal velocity does not obey the logarithmic distribution law, but it can expressed as a revised logarithmic function by using a wake function. on the basis of the kinematic equation the velocity distribution of transverse velocity is obtained. in the boundary region, the longitudinal velocity obeys the law of parabolic distribution. furthermore, according to the simplified diffusion equation, the transverse distribution of sediment concentration in the interactive region is deduced. the analysis is in good agreement with the measured data
本文根據漫灘水流的運動特點，將漫灘水流的復式斷面分為主槽平衡區、灘槽交互區、灘地平衡區及邊壁區等4個區，並給出了各區寬度的經驗公式.根據灘槽交互區垂線流速分佈的變化特點，提出了附加尾流函數的對數流速分佈公式.在簡化水流運動方程和泥沙擴散方程的基礎上，對灘槽交互區內垂線平均流速及含沙量沿橫向分佈進行了理論分析，提出了反映灘槽水流動量交換強度的橫向渦量粘性系數及橫向擴散系數的表達式，得到了漫灘水流垂線平均流速及含沙量沿橫向分佈的解析解，並與實測資料吻合較好 -
Between the half - dream amp; amp; half - wake - analysis of the image of chen bailu
陳白露形象比較川端康成與曹禺的悲劇意識 -
" i am convinced that there is a reasonable and entirely harmless explanation for such positive finding, should it be confirmed by the analysis of the b - sample, " he said in a statement issued through his lawyers in the wake of the initial results
在結果宣布之後，薩維爾一直宣稱自己在這件事上沒有任何過錯。 「如果b瓶尿檢也呈陽性，我想這其中一定有一個合理的解釋。 」薩維爾事後通過他的代理律師發表了上述聲明。 -
Wake vortex separation standards are used to prevent hazardous wake vortex encounters which mainly found in the final approach course within the airport termination zone. firstly, this paper analysis the mechanism of the vortex decay and research the influence on the safety of the flight ; then. several different radar wake vortex separation standards are compared and some basic guidelines are developed to establish the future vortex standards. in addition, one kind of advance vortex classification for the civil airplane is proposed. secondly, an encounter hazard model which established for the following aircraft and a simple vortex decay model which mostly concern with the proceeding one are developed ; and a safe separation model can be derived from the both. finally, through the simulation calculation, the correctness of the vortex classification of different types of aircrafts are tested and proved
本課題對雷達管制條件下的最小尾流間隔標準進行了較為詳細的分析和研究；首先對尾流的形成和消散機理以及尾流對飛行安全的影響做出了詳細的分析，然後就目前實行的幾種不同的最小尾流間隔標準進行了比較和分析，提出了相關的幾條準則和一種改進的機型尾流分類標準；在這之後，採用理論分析和統計數據分析相結合的方法，建立了尾流危險遭遇基本模型和尾渦消散模型；並在此基礎上對民用航空不同機型的尾流分類的合理性進行了計算和評估，為最小尾流間隔標準的確定和改進提供了初步的理論依據。 -
Through the analysis of the simulated sar images for different sar system parameters, observing conditions, ships " types and motion parameters, as well as sea state parameters, the thesis has studied the optimal observing conditions for different kind of wakes and probed into the problem of motion parameters inversion and wake detection
通過對不同的sar系統參數、觀測條件，艦船類型和運動參數以及不同海況參數下模擬的尾跡sar圖像的分析，研究了不同類型尾跡的sar最佳觀測條件，探討了運動參數反演和尾跡檢測的方法。 -
Based on theoretic analysis and adopted computer simulation, this thesis has made an in - depth study of the ship wake features, the synthetic aperture radar ( sar ) imaging mechanism of wakes, the simulation of sar imaging of wakes, the optimal observing conditions of sar and other related problems. it is the fundamental research work of ship wakes detection and of ship ' s moving parameters inversion
本論文以理論分析為基礎，採用計算機模擬模擬的方法，深入地研究了艦船尾跡特徵、尾跡的sar成像機理、尾跡成像模擬、 sar的最佳尾跡觀測條件以及一些相關的問題，為sar對艦船尾跡檢測、運動參數反演的方法和實現技術開展前期基礎性研究。
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