| 1. | Extension and application of logistic curve
逻辑斯蒂曲线的几个推广模型与应用 |
| 2. | Logistic curve model application for chongqing urban inhabitant income forecasting
以重庆市城镇居民收入预测为例 |
| 3. | Study on application of logistic curve model to settlement prediction of roadbed subjected to multilevel loadings
增加曲线模型在路基沉降预测中的应用研究 |
| 4. | For the multistage loadings of embankment , the logistic curve model to embankment settlement predication is put forward by error analyses and comparisons
通过误差分析与比较，把增长曲线模型引入到多级荷载下的路堤沉降预测中。 |
| 5. | 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
为检验洪涝灾情等级标准的合理性，笔者利用逻辑斯谛曲线和遗传算法对其加以验证，并且在模型的级别判定上，做了适当的处理。 |
| 6. | 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
摘要通过在湖南主产烟区5点16年次以上系统调查，发现赤星病季节流行呈逻辑斯蒂曲线增长，发病程度年间波动大。 |
| 7. | 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
由于水资源在开发利用中，受到增强因子和约束因子的共同作用，所以近似地用生态学中logistic曲线来描述枯水资源承载力的增长过程，同时用不同的数学模型表达枯水资源承载力在不同阶段的表现形式。 |
| 8. | 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
评估结果表明乌梁素海湿地的总价值为28 . 24 108元,其中直接实物产品价值为7164 . 70 104元,直接非实物服务价值为18193 . 43 104元,间接价值为81960 . 58 104元,目前非使用类价值为17 . 51 108元。 |
