chord distribution 中文意思是什麼
chord distribution
解釋
弦向分佈- chord : n. 1. 〈詩〉（琴）弦；（心）弦；【音樂】和弦，和（諧）音。2. 【航空】翼弦；【數學】弦；【解剖學】腱，帶；【建築】弦材，桁材。vt. 上…的弦；調（弦）。vi. 1. 調和，和諧。2. 彈奏。
- distribution : n 1 分配，分發，配給；分配裝置[系統]；配給品；配給量；【經濟學】配給方法，配給過程；分紅；【法律...
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In this paper, we propose the chord - distribution - based image description, and research the image retrieval algorithm based on this description. the main work of the paper consists of two part that are the feature description about image and the algorithm of image retrieval. in the first part, we propose the definition of region - chord, the presentation of chord - distribution, and describle image after analyzing the properties of chord - distribution. in the second part, after partitioning image and counting region - chord - distribution, we analyse the forground and background of image to each region and propose the criterion of the similarity of images
論文的主要工作由圖象特徵描述和圖象檢索演算法兩部分組成。在圖象特徵描述部分，我們給出了區域弦的定義和區域弦分佈的表示，分析了弦分佈的性質，並在此基礎上進行了圖象特徵描述。在圖象檢索演算法部分，本文首先作了圖象區域劃分、區域弦分佈的計算；其次對區域作了前景、背景分析並給出了圖象間的相似性度量。 -
Using method of oil - flow visualization techniques and measuring pressure distribution along airfoil chordwise and spanwise studies have been down for sidewall boundary - layer displacement effect in two - dimensional wind tunnel. three different chord models were tested in two different wind tunnel. in order to clarify the sidewall effects and study method of sidewall suction theory and sidewall interference correction method to remove effects of sidewall on model. the results of oil - flow test show that selection rational suction wary can obtain better testing results. by investigations on effects of the sidewall boundary layer suction and application of a sidewall interference correction method
為了很好地解決多機場航班隊列的擁塞問題，在將進場容量、離場容量與機場容量作為統一整體的情況下，充分考慮了機場間的網路效應，詳細研究了多機場航班隊列的優化問題，建立了多機場開放式非實時流量管理的數學模型，通過選取適當的決策變量，使其為線性0 - 1整數規劃模型，實現了中心流量集中管理.與其它演算法不同，本文提出的啟發式隱枚舉演算法能很好地解決此類問題，對某機場網路系統的模擬結果證明了所建模型、優化演算法及相應軟體的有效性和可靠性 -
According to the distribution of local impulse noise, an adaptive chord deviation method is used to avoid redundant detection or missing of impulse noise at the quick rising, descending or broken line area of data set
摘要針對現有脈沖噪聲濾波演算法在處理大斜率區域和斷線型激光掃描數據中存在的多判和漏判問題，提出了一種有效檢測脈沖噪聲的方法。 -
To investigate the aerodynamic design ideas and concrete methods of high performance low pressure turbine ( lpt ) at low reynolds number condition, a new lpt of high load, large chord and proper velocity distribution was designed
摘要為了探索高空低雷諾數情況下高性能低壓渦輪部件的氣動設計思路和設計方法，通過採用高負荷、大弦長的葉片設計和選擇恰當的葉片表面速度分佈形式設計了一臺新低壓渦輪。
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