logistic curve 中文意思是什麼
logistic curve
解釋
邏輯曲線-
The growth dynamics of tree basal area of form. taxus chinensis var. mairei population in different altitude were discussed using the liu - logistic model, and the results showed that the altutide of 790 meters is more suitable to the survive of form. toms chinensis var. mairei population than 990 meters. plot sampling was selected and dynamic analysis was used to study the height structure of taxus chinensis var. mairei population, and the quadrate picture of height structure and the curve of survival rate were drew
運用改進模型對南方紅豆杉種群在不同海拔梯度的種群優勢度增長進行了探討，表明海拔790m處的南方紅豆杉具有較大的環境容納量，但增長速度不快，海拔990m處的南方紅豆杉種群環境容納量不高，但具有較大的增長速度，這可能與群落的發育階段不同有關，兩地海拔均為南方紅豆杉適宜的生長海拔高度，相比而言，海拔790m的珍稀瀕危植物南方紅豆杉種群數量特徵的研究高度更宜於南方紅豆杉種群的生長。 -
Extension and application of logistic curve
邏輯斯蒂曲線的幾個推廣模型與應用 -
Application of logistic model in roc curve analysis
分析中的應用 -
Use of time sequence method to predict the future growth trend of the fixed network telecom industry revenue ; contrasting the fixed telephone development of town and village, adopting logistic growth curve econometrics method to analyze three development stages of chinese village fixed telephone market ; draw a conclusion that the chinese village fixed telephone has a huge development potential ; and predict the development trend of village fixed network telecom in several years ; adopting logistic growth curve method to calculate and analyze internet business growth stage ; while studying internet development potential, we draw a conclusion that internet business also have a good growth foreground, and give a quantitative predict of internet industry development
運用時間序列外推法預測未來固網電信業收入增長趨勢;通過城鎮與農村固定電話發展對比，採用logistic成長曲線計量經濟方法分析了中國農村固定電話市場發展的三個階段，認為中國農村固定電話處于高速發展的中期，具很大的發展潛力，並定量預測出未來中國農村固話發展趨勢;在研究網際網路及寬帶接入業務發展潛力時，同樣採用logistic成長曲線計量方法，分析了網際網路業務成長階段，得出網際網路業務尤其是寬帶業務具有很好的增長前景的結論，並定量預測出未來網際網路業務、寬帶業務的增長趨勢。 -
It was found out that the prevalence of tobacco brown spot disease alternaria alternata ( fr. ) keissler presented growth with logistic curve pattern, and the degree of disease fluctuated greatly among different years in the tobacco region of hunan
摘要通過在湖南主產煙區5點16年次以上系統調查，發現赤星病季節流行呈邏輯斯蒂曲線增長，發病程度年間波動大。 -
In order to test the grade criterions of flood disaster loss, logistic curve ( log ) model and genetic algorithm ( ga ) are used by the author who properly disposes the judge of disaster loss grade
為檢驗洪澇災情等級標準的合理性，筆者利用邏輯斯諦曲線和遺傳演算法對其加以驗證，並且在模型的級別判定上，做了適當的處理。 -
Logistic curve model application for chongqing urban inhabitant income forecasting
以重慶市城鎮居民收入預測為例 -
The indirect use value is rmb 819. 60 million yuan ( us $ 102. 44 million ). the current non - use value is rmb 1. 75 billion yuan ( us $ 0. 22 billion ). the paper evaluates the present situation of water environment quality in wuliangsuhai lake and gains its level of the water quality though investigation, monitoring and analysis in from 2003 to 2005 and using of the logistic curve model
評估結果表明烏梁素海濕地的總價值為28 . 24 108元，其中直接實物產品價值為7164 . 70 104元，直接非實物服務價值為18193 . 43 104元，間接價值為81960 . 58 104元，目前非使用類價值為17 . 51 108元。 -
Study on application of logistic curve model to settlement prediction of roadbed subjected to multilevel loadings
增加曲線模型在路基沉降預測中的應用研究 -
For the multistage loadings of embankment, the logistic curve model to embankment settlement predication is put forward by error analyses and comparisons
通過誤差分析與比較，把增長曲線模型引入到多級荷載下的路堤沉降預測中。 -
Because the water resources are affect by enforcing element and constraining elelment together in the exploration and utilization logistic curve is used similarly to relate the increasing process of low flow carrying capacity and describe expressional forms of low flow in diffrernt stages
由於水資源在開發利用中，受到增強因子和約束因子的共同作用，所以近似地用生態學中logistic曲線來描述枯水資源承載力的增長過程，同時用不同的數學模型表達枯水資源承載力在不同階段的表現形式。
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