verhulst 中文意思是什麼
verhulst
解釋
費爾許爾斯特-
Considering the limits of all predicting models, we select some kinds of methods form predecessor ' s study such as grey - movement forecasting modes of uniformly factal, exponent smoothing prediction verhulst model forecasting, verhulst inverse - function forecasting, trend prediction, growing model prediction and so on to build a model base. it is a software of landslide prediction which based on gis and developed by vb6. 0
考慮到各種預測預報理論模型的局限性，本文從前人的理論模型中選出了等維灰數遞補動態預測模型、指數平滑預報模型、 verhulst及verhulst反函數預報模型、趨勢移動平均法預報模型、 「成長」曲線預報模型等幾種模型建成預測預報模型庫，以mapinfo為平臺，利用vb6 . 0語言開發研製了基於gis的滑坡預測預報軟體系統。 -
Forecasting model of urban sewage discharge based on grey verhulst
的城市污水排放量預測模型 -
The existence and uniqueness of global solutions for verhulst ' s partial differential equations on the population mathematical models
一類描述人口群體增長模型的非線性方程非局部定解問題解的存在性研究 -
The gray model gm ( 1, 1 ) in the gray theory is established to forecast the subsidence successfully, and the verhulst model is also established to estimate subsidence tendency of a building
運用灰色系統理論建立gm （ 1 ， 1 ）模型，對結構的沉降進行成功預測；建立verhulst模型，對結構沉降發展態勢作出評估。 -
It was known to all that p. f. verhulst and a. l. j. quetelet who proposed the classical logistic model in 1838, and then t. g. hallam and c. e. clark mended the classical logistic model in 1993
Clark修改了經典的logistic方程近些年來，許多專家和學者對logistic方程中的兩個參數：內稟增長率r和環境的最大容納量k從不同方面進行完善 -
The process and methods of monitoring measurement in the course of construction are detailed the measuring data analyzed and treated are studied. besides the forecast and calculate of tunnel surrounding rock stably displacement are deeply researched, and according to the uncertainty of geotechnical engineering, grey verhulst model is put forward to forecast tunnel surrounding rock displacement based on optimizing gm ( 1, 1 ) model
介紹了隧道施工監控量測的過程和方法，對量測數據的處理技術與分析方法進行了研究，深入地研究了隧道圍巖穩定位移的預測預報，並針對巖土工程的不確定性，在優化gm （ 1 ， 1 ）模型的基礎上，提出了用灰色verhulst模型預測隧道圍巖位移。
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