本文提出了一种新的聚类指数增长模型来预测江苏洋口港海区西太阳沙附近海底的冲淤变化。
A new cluster index growth model to predict submarine erosion and sediment near the West Tai-Yang-Sha of Jiangsu Yangkou-Port has been brought forward in this paper.
叶面积指数呈“S”型增长，并符合逻辑斯蒂模型。
The leaf area index followed an "s" curve increase, conforming to a logistic model.
灰色预测系统GM(1,1)模型用于负荷按指数增长态势变化时，预测精度较高，但当影响负荷的因素较多、模型灰度较大时，精确度就不够理想。
The power load forecast accuracy is higher when GM (1, 1) model is applied for the exponential increasing load, while it is not acceptable when the load is influenced by different factors.
得到了幂律指数介于2到3之间可调的无标度网络模型，并解析地给出了幂律指数随增长率变化的函数关系。
This network shows scale-free property when the growing rater is not large, and its power-law exponent is tunable from 2 to 3 thr.
它使GM(1,1)模型同时适应于低增长指数序列和高增长指数序列建模，它是提高GM(1,1)模型精度和适应性的关键技术。
The new formula is suited to building GM (1, 1) model for both low growth index series and high growth index series. It is the key technology of enhancing GM (1, 1) model precision and adaptability.
基于短缺量部分拖后的EPQ模型，考虑需求随时间指数增长以及缺货和现货期间生产率不相同对库存管理补充策略的影响，建立了相应的生产库存模型。
Based on the classical EPQ model, this paper develops an EPQ model for deterioration items with different lost sale factor relative to the inventory level during shortage period.
基于短缺量部分拖后的EPQ模型，考虑需求随时间指数增长以及缺货和现货期间生产率不相同对库存管理补充策略的影响，建立了相应的生产库存模型。
Based on the classical EPQ model, this paper develops an EPQ model for deterioration items with different lost sale factor relative to the inventory level during shortage period.
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