The review reports some characters of the photoperiodic counter in insects and mites, including the following aspects: (1) the accumulation of photoperiodic information during photoperiodic sensitive period of insects.
光周期计数器是光周期反应系统的一个重要组成部分,它累积和储存光周期循环中的光周期信息,当存贮的信息总量超过一个内部阈值时,诱导(滞育和非滞育;有性和无性)就会随之发生。
Confirmation of Time Cycle to Operate Pump for Propel During Stopping Transportation;
输油管线停输期间开泵顶管时间周期的确定
The Relationship About the Venom s Collection Cycle and the Quantity of the Gloydius ussuriensis Emelianov;
乌苏里蝮蛇采毒周期对排毒量的影响
Beijing real estate market cycle analysis based on principle componential and spectral analyses;
基于主成分分析与谱分析的房地产市场周期研究
The Study of Periodic and Chaotic Behavior in Three Cells Cellular Neural Networks;
三神经元CNN自治系统中周期与混沌行为的研究
Optimal Control for Periodic Age-Dependent Population Dynamics;
一类具年龄结构的线性周期种群动力系统的最优控制
Key Property of Solutions for Periodic Linear Differential Equations;
周期线性微分方程解的一个关键性质
Properties of periods of elements in zero-symmetric BZ-algebras;
零对称BZ-代数元素周期的性质
In order to study the joint distribution of the wave heights and periods of the sea wave under influence of the variance of water depth, 236 records of sea waves classified as three groups according to the rank of the water depth factor(H￣*),were analysed in this paper firstly.
本文研究了水深的变化对波高与周期联合概率密度分布造成的影响。
In this paper,we study the periods of transversal vibration for a tense symmetric double elastic oscillator.
理论研究与数值模拟的结果都表明:振动的周期随着振幅或紧张程度的增大而减小,紧张程度不断增大时周期存在一个极限值。
Study on fouling performance and optimization cleaning period of water cooler sets;
水冷设备污垢特性及其最佳清洗周期研究
The effect of sintering temperature and period for nanocrystalline NASICON materials;
烧结温度和周期对NASICON纳米晶材料的影响
Reducing coke formation and realizing long period operation for catalytic cracking unit;
降低催化装置结焦实现长周期运行