selection method 中文意思是什麼

selection method 解釋
選擇法
  • selection : n. 1. 選擇；挑選；選拔。2. 拔萃；選擇物；精選物[品]；文選。3. 【無線電】分離，（自動電話）撥號。4. 【生物學】選擇，淘汰。
  • method : n 1 方法，方式；順序。2 （思想、言談上的）條理，規律，秩序。3 【生物學】分類法。4 〈M 〉【戲劇】...
  1. " longdao no. 3 " bred from offspring of " shangyu 397 ( mudanjiang 19 zhongguo 91 ) " through several years ' selection combination of bulk selection method, pedigree selection method and ecosystem selection method

    摘要龍稻3號是從上育397 （牡丹江19中國91 ）的後代經多年運用集團選擇、系譜選擇和生態壓力選擇相結合的方法選育而成。
  2. Abstract : the paper introduced the theory of piping transportation of the 1 500 deadweight ton bulk cement barge, and provided the numeration and selection method of main parameters, such as pipe diameter, wind pressure, flux, etc

    文摘:介紹了1500t散裝水泥運輸船的水泥管道輸送原理，給出了該船上壓縮空氣管、流化空氣管和水泥裝卸管的管徑、風壓、流量參數的計算和選用方法。
  3. Applying the ameliorated rumania selection method to the picking up and transport program of out - of - gauge goods wagons

    改進的羅馬尼亞選擇法在鐵路超限貨車掛運方案中的應用
  4. A new feature selection method in text categorization

    文本分類中一種新的特徵選擇方法
  5. 4. combining the attribute selection method with rough analysis, a classifier modeling method is put forward, which owns the ability of deleting redundant attributes and deducing rules based on rough analysis

    將屬性選擇方法與rough分析相結合，利用rough分析可以剔除屬性集合中冗餘屬性並進行規則歸納的能力，提出一種基於rough分析的分類器建模演算法。
  6. First, the characteristic of flight segment volume is analyzed, existing model selection method is discussed, forecasting model selection method based on support vector machine is described

    首先，本文分析了航段運量特點，討論了現有模型選擇方法，在此基礎上闡明了基於支持向量機的航段運量預測模型選擇方法。
  7. This thesis systematically analyzes the characteristic of flight segment volume and existing model selection method, and discusses theory and algorithm of support vector machine in details, makes research on model selection in forecasting of flight segment volume combined with support vector machine

    本文系統地分析了航段運量的特點及現有的模型選擇方法，詳細探討了支持向量機相關理論和演算法，結合支持向量機對航段運量預測模型選擇方法進行了深入研究。
  8. Abstract : an easy method for determining the lateral fold number of 3 - d seismic swath is presented. it is described in details that the non - vertical time error and selection method of vertical line direction. based on existing conditions of 3 - d seismic data acquisition in coal field, an assumption of 3 - d broad azimuth data acquisition is provided to remove the disadvantages of non - uniform azimuth distributions from old observation system

    文摘:提出了線束型三維觀測系統橫向覆蓋次數的一種簡易確定方法，詳細論述了非縱誤差的實質及縱測線方向的選擇方法，根據目前煤田三維數據採集現狀，提出了寬方位角的設想，以便克服以往三維觀測系統中方位角分佈不均的弊端。
  9. When confirming the location of logistics distribution center by using gravity method, it is limited in the actual application, because the location selection method only takes into account traffic cost rate and freight traffic volume

    摘要採用重心法確定物流配送中心的位置，由於選址因素只包括運輸費率和貨運量，在實際應用中受到很大限制。
  10. Combined with case analysis, this essay illuminates the actual application of the location selection method based on gravity method and discrete model

    結合實例分析，說明基於重心法與離散模型的配送中心選址方法的實際應用。
  11. 18 otsu n. a threshold selection method from gray - level histogram. ieee transaction systems, man cybernetics, 1979, 9 : 62 - 66

    識別器為三個分類器的并行組合，包括神經網路k近鄰分類器和基於模糊的k近鄰分類器。
  12. In order to select male nucleo - sterile new genotype, a tentative idea was put forward for the nucleo - male sterility to attach a tps ( thermo - photoperiod sensitivity ) and a selection strategy of combination of selection and identification, at the same time, the spring and summer sowing method were used to provide different environment conditions of appraising sterility and tps. the results indicated that ( 1 ) sterility could be appraised under the spring sowing environment and tps could be appraised under summer sowing environment. ( 2 ) under spring sowing environment, sterility could be selected, but not maintained. thereby, lines selected could only be selected as recorded selection method in the experiment. ( 3 ) and then, selection was carried out from spring sowing line selected into summer sowing in same line with tps to select plants. these plants through the intercrossing selection had been combined with sterility and tps. in this way, a new selection protocol for selection sterile line with tps was formed. it mainly involves the spring and summer sowing method, recorded selection method and the intercrossing selection method

    為了選育新類型玉米雄性核不育系，提出了為玉米核不育性添加溫光敏感性的設想和選擇與鑒定相結合的策略，同時應用分期播種的方法為作物提供不同的生長和發育的環境條件，以鑒定玉米雄穗的育性變化和對不同環境條件溫光的反應.研究結果表明，春播環境下可鑒定和選擇玉米的不育性，夏播環境下可鑒定和選擇其溫光敏感性.針對玉米核不育性難以找到保持系的特性，結合兩種播期選擇兩種性狀.但春播環境下選擇的不育性群體難以通過選擇單株來保持其不育性，為記錄性群體選擇.通過從春播入選的雜合不育性優良株系群體轉移到其對應的夏播溫光敏感性入選的同一優良群體中進行優良單株選擇，能逐漸使不育性和溫光敏感性相結合而選育出純合溫光敏不育系.這種新的選擇程序主要包括應用分期播種法、記錄性選擇法和春夏兩季交叉式選擇法，使含有不育基因的可育株系逐步累積不育基因並增加了溫光敏感性而育成玉米溫光敏不育系
  13. In accordance with the assigned number of seats and the selection method specified by the national people ' s congress, the chinese citizens among the residents of the hong kong special administrative region shall locally elect deputies of the region to the national people ' s congress to participate in the work of the highest organ of state power

    根據全國人民代表大會確定的名額和代表產生辦法，由香港特別行政區居民中的中國公民在香港選出香港特別行政區的全國人民代表大會代表，參加最高國家權力機關的工作。
  14. Aimpoint selection method of airplane target

    一種飛機目標的瞄準點選擇方法
  15. Also from waveform polynomials of sequential circuits, a precise clocking method based on multiple - period sensitization is presented. a novel noise estimation method based on boolean process is first presented in this paper, using transition numbers to describe noise effects. then combined with the selection method of long sensitization paths based on waveform sensitization, a test generation approach that could generate the noisiest sensitization waveforms for long sensitizatizable paths is presented

    為了適應超深亞微米電路測試的要求，本文建立了一種新的基於布爾過哈爾濱工程大學博士學位論文程論的邏輯級噪聲預測模型，用波形多項式描述的同時發生的跳變數來預測l卜足聲大小，並生成能產生最大跳變數目的輸入波形;然後同基於波形敏化的長敏化通路選擇法相結合，形成一種能產生最大噪聲效應的敏化測試波形生成新方法。
  16. This paper illustrates detailedly the thin groupware auto - adaptive recognition system ; it also illlustrates the procession of capture image and take indispensable foreclose to wipe off noise in order to get boundary easilyer. the recognition system uses " hough " transform method to make the recognition area orientation, and according to the unstable environment such as lights which leads to the change of the image ' s brightness, thresholds picture using an iterative selection method and then growing process for cell image segmentation based on local color similarity and global shape criteria, adaptively gets the best threshold to divide the washer off the background. the recognition system uses the classifier based on minimal - error - ratio bayes method to make decision after getting image characteristic

    本文詳細介紹了薄形組合件自適應識別系統；闡明了圖像的分通道自動採集過程，以及對採集到的原始圖像所進行的預處理方法。通過採用哈夫變換去除偽邊緣點的方法，有效地解決了識別區域的定位問題。針對裝配零件（主要是墊片）薄、小導致圖像信息少、識別難度大，以及材質不一導致採集到的組合件圖像亮度波動等問題，提出了使用最佳閾值迭代法和使用種子填充的圖像串列分割技術，自適應地找出最佳閡值，使墊片和背景分離，從而提取墊片數目信息。
  17. Compared with normal weight selection method, the new method can reduce the iteration times of weight function selection, and ensure the synthetical performance of the resulting h ( subscript ) loop shaping controller

    與常規的權重函數選取方法相比，該方法能夠減少權重函數選取時迭代的次數，保證控制器的綜合性能。
  18. Based on the introduction and analysis of the approach of h ( subscript ) loop shaping, aiming at the problems that the weight functions are chosen by trial and error, and the synthetical performance index of the controller is hard to meet the frequency and time domain performance requirements, an improved weight function selection method is proposed based on engineering design and chaos optimization

    摘要在介紹和分析h （下標）迴路成形基本設計力法的基礎上，針對權重函數選取需要反復迭代、過程繁瑣、所得控制器難以同時滿足時域和頻域性能指標等問題，提出了一種基於工程設計、輔以混沌優化理論的權重函數選取方法。
  19. Then navigation asteroids are selected under a integral evaluation, the planning of the photoing sequence is handled with an improved genetic algorithm, along with a difference selection method which optimizes the ratio of navigation evaluation to resource consumption. a single axis randomized expanding algorithm is proposed to solve the large angle slew maneuvers planning problem. this algorithm randomly produces

    對于自主探測器大角度機動規劃問題，本文提出單軸隨機擴展演算法，單軸隨機演算法在生成隨機節點過程中充分利用鄰近點的信息，把規劃問題構造空間的維數由3減少到2 ，從而減少問題求解的搜索空間，最後利用前向搜索的方法對規劃路徑進行優化。
  20. Considering the artificial fracture as the refracture upon the horizontal seam, putaohua oilfield is taken as the target and the following tasks have be done : define well and stratum selection method for refracturing ; determine the refracturing time with well test analysis and flow index method ; find out the main cause of refracturing failure

    摘要針對大慶油田長垣人工裂縫為水平縫的重復壓裂井，以葡萄花油田為研究對象，初步界定了重復壓裂選井選層工藝方法；應用試井分析和流動指數方法判斷重復壓裂時機；經過研究找出了重復壓裂井裂縫失效的主要原因。
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