directive coefficient 中文意思是什麼

directive coefficient 解釋
方向系數, 定向系數
  • directive : n. 〈美國〉命令,訓令,指令;方針。adj. 1. 指導的,指揮的;管理的。2. 【無線電】指向[定向]式的。
  • coefficient : adj. 共同作用的。n. 1. 共同作用;協同因素。2. 【數,物】系數,率;程度。
  1. The simulation result shows that vadose zone can rigorously retard those nuclides with vigorous adsorbility, i. e. the bigger the nuclide decay coefficient is, the more the nuclide is retarded in vadose zone and the less the nuclide concentration in aquifer is, and that the distribution coefficient directive affects the form of the nuclide concentration curve in an aquifer

    數值模擬結果表明:包氣帶對于吸附性較強的核素具有很大的阻滯作用,對于低分配系數的核素阻滯作用較弱;衰變系數對含水層中核素的遷移起到了重要作用,隨著衰變系數的增大,地下含水層中的核素體積濃度逐漸降低,並且分配系數的大小直接影響著核素在含水層中體積濃度分佈曲線的形狀。
  2. The results show that when evaluated with the indexes of cross entropy and contrast, it performs better than the wavelet transform based fusion method with the fusion rules of maximum absolute coefficient and maximum directive contrast

    模擬實驗表明,較之於基於最大絕對系數和最大方向對比度的小波變換融合方法而言,該方法在交叉熵和對比度意義上性能更佳。
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