Using the random walk model to describe the intervals of feeding ends in the fixed size reeling process,we proved the distribution of intervals of feeding ends is a Gamma distribution through the characteristic function.
利用随机游动模型描述定纤缫丝过程中的接绪间隔 ,通过其特性函数给出接绪间隔分布可以表示为Γ分布的理论证明 ,解明分布参数与茧丝纤度特性、缫丝工程条件、目的纤度等之间的关系。
The Situation and relation of mycrophyte,zooplankton and fish in the ecological restoration of a tropical shallow lake in a city;
热带城市湖泊生态恢复中水生植被、浮游动物和鱼类的关系研究