static-flow characteristics 中文意思是什麼

static-flow characteristics 解釋
定常流特性
  • static : adj 1 靜止的，靜態的，靜力的。2 【物理學】天電的，靜電的。3 【無線電】靜態特性。4 固定的，不活潑...
  • flow : vi 1 流，流動。2 （血液等）流通，循環。3 流過；川流不息；（時間）飛逝；（言語等）流暢。4 （衣服、...
  • characteristics : 產品性能描述
  1. According to characteristics of the seismic data from the low snr region with complex surface, this paper is started from solving the static correction problem and reasonable eliminating all kinds of disturbance in the seismic data from the low snr region with complex surface. through the whole process of seismic data processing which includes a series of processing methods that are suitable for the low snr region, namely, from the choosing of the floating base - level, the static correction in the field and indoors, the eliminating of all kinds of noise before and after stacking, the velocity analysis with high - resolution, the reasonable techniques of deconvolution before stacking and wavelet processing after stacking, to the method choosing of the high - resolution stacking and the reasonable and accurate offset imaging, a set of the complete and effective flow for processing seismic data from the low snr region with complex surface are finally formed, which can meet the need of explo

    本文針對復雜地表低信噪比地區地震資料的特點，以解決復雜地表低信噪比地區地震資料靜校正問題及合理剔除各類干擾為出發點，在整個地震資料處理過程中，從浮動基準面的選取、野外及室內靜校正、疊前疊后各類噪音的去除、高精度速度分析、合理的疊前反褶積及疊后子波處理技術、到選用高精度的疊加技術及合理準確的偏移成像方法等一系列適合於復雜地表低信噪比地區的處理方法，最終形成一套較完整且有效的針對復雜地表低信噪比地區地震資料的處理流程。
  2. Based on netomac, a software package for power system simulation, the model and algorithm of pre - dispatch schedule in generation markets, excitation system parameter setting, and power system small signal stability anaylsis are studied in this thesis. the main work is as follows : a model of pre - dispatch schedule is proposed, whose target is to minimize the market purchasing price ( mpp ) in the whole pre - dispatch period. then according to the characteristics of pre - dispatch schedule, the model of pre - dispatch schedule is simplified to minimize the mpp in each pre - dispatch time, and a three - step algorithm of pre - dispatch schedule is designed : dealing with the optimal problem in the whole period of pre - dispatch with static planning method, solving the problem of combination of machines with pr1 method, resolving problem of optimal power flow ( opf ) with modified powell method

    本文基於netomac模擬軟體，以發電市場預調度計劃模型及演算法、勵磁系統參數整定和電力系統小擾動穩定性分析為研究內容，主要做了以下工作：建立了以整個預調度計劃周期內的市場購電價格最小為目標的發電市場預調度計劃模型，並根據預調度計劃問題狀態數多、變量多、混合整數、非解析的特點，將預調度計劃模型的目標函數簡化為各時段的市場清算電價最小，設計了三段式預調度演算法：用靜態規劃法求解整個預調度計劃周期內的優化問題；用優先級法求解機組組合問題；用改進的powell法求解最優潮流問題。
  3. In this paper the flow field of falling film along the inner of vertical tube is simulated and it ' s the necessary base of the further research that includes characteristics of heat and mass transfer in the absorber under the fluctuant state. in this paper the ocean fisher ' s movement in the ocean is studied and the physical and the mathematical models of fisher are founded, then the expressions of the force caused by the movement are obtained. the expressions are combined with partial different equations of falling film under the static state, thus the mathematical model of the falling film under fluctuant state can be gained

    本文首先研究了船舶在海洋中的運動，建立了船舶搖擺運動的簡化物理模型和數學模型，得到了運動附加力的表達式；並在此基礎上將吸收管的運動附加力表達式代入靜止狀態下液膜流動的數學模型中，即得到了搖擺狀態下液膜流動的數學模型；然後對液膜流動的數學模型進行了簡化，在假定了速度分佈的條件下，得出了液膜流動的積分方程，經過以上簡化就將求解三維問題轉化成為求解二維問題；將積分方程離散化後用數值計算的方法模擬了整個流場。
  4. In this paper the flow field of falling film along the inner of vertical tube is simulated and it ' s the necessary base of the further research that includes characteristics of heat and mass transfer in the absorber under the fluctuant state. in this paper the ocean fisher ' s movement in the ocean is studied and the physical and the mathematical models of fisher are founded, then the expressions of the force by the movement are obtained. the expressions are combined with partial different equations of falling film under the static state, thus the mathematical model of the falling film under fluctuant state can be gained

    本文首先研究了船舶在海洋中的運動，建立了船舶搖擺運動的簡化物理模型和數學模型，得到了運動附加力的表達式；並在此基礎上將吸收管的運動附加力表達式代入靜止狀態下液膜流動的數學模型中，即得到了搖擺狀態下液膜流動的數學模型；然後對液膜流動的數學模型進行了簡化，在假定了速度分佈的條件下，得出了液膜流動的積分方程，經過以上簡化就將求解三維問題轉化成為求解二維問題；將積分方程離散後用數值計算的方法模擬了整個流場。
  5. With the favor of these techniques, the static pressure distribution along the length and the velocity profile at the mini - channel exit were obtained. with the data of more than 500 flow states based on 13 kinds of mini straight rectangular channels that their heights were 0. 5mm and 1. 0mm, the effects of characteristic scale, surface roughness and the aspect ratio of rectangular on the characteristics of flow resistance of mini straight channels were studied

    採用在沿程測量氣流靜壓分佈、在出口測量速度分佈的方法，對高度0 . 5mm和1 . 0mm的13個微小直矩形通道的500多個狀態流場進行了測量，研究了特徵尺度、表面粗糙度、橫截面寬高比等因素對微小等直通道流動阻力特性的影響。
  6. The proportional pressure / flow hybrid valve ( pq valve ), which adjusts pressure and flow rate simultaneously, is increasingly adopted for the hydraulic control system in molding machine, due to its advantages of high integration degree, stable and energy - saving performance. based on the analysis of various types of pq valve, this paper investigates the control performance of the byl 16 series valve, including the static and dynamic characteristics

    本文在綜合了目前國內外各種pq閥技術現狀的基礎上，分析研究了由浙江大學研製的byl系列pq閥的靜、動態性能，並結合模擬和試驗研究，提出了改善pq閥靜動態性能的機理和有效措施，為今後實際工程應用和系列擴展設計提供了很好的理論依據。
  7. This paper analyses the type, function and characteristics of usual proportional control valves and raises a new modificative version in the light of their drawback. that is, basing on the principle of flow amplification and electrical feedback and throughout calculation and analysis on flow closed loop control and pressure flow combination., determination of the minimum controlled pressure difference as well as flow controlling range and structure of main valve and research of the dynamic and static characteristic, the paper puts forward control principle of " flow - load pressure change - displacement revision " and pressure / flow double closed loop, and further expounds that using a proportional controller and a electric mechanical transducer can separately serve the control function of pressure or flow as well as flow pressure combination

    本論文分析了目前常用比例閥的類型、功能、特性，並針對其不足提出新的改進方案，即：以流量放大，電反饋兩個原理為基礎，通過對流量閉環控制及壓力流量復合的計算分析、確定上最小控制壓差及流量控制范圍，確定主閥結構、功能特性研究等，提出了「流量? ?負載壓力變化? ?位移修正」的控制原理和壓力流量雙閉環控制原理，並進一步論述了利用一個比例控制器和一個「電?機械轉換器」就可完成獨立的壓力或流量控制功能以及流量壓力復合控制功能。
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