The fossils show what is known as an adaptive radiation. This is biology-speak for a period of diversification so fast that the individual splits cannot be distinguished.
化石展示了人们所认知的“适应性辐射”,这也从生物学的角度解释了一定时期内急剧的生物多样性现象,致使个体物种的分化没有被世人所察觉.
Emphasis is given to the characteristics of the dose response and time response relationships of adaptive response induced by extremely low dose rate ionizing radiation.
强调了极低剂量率电离辐射诱导适应性反应的可能及其剂量效应和时间效应关系的特点。
The Adaptive Time-delay Neural Network (ATNN) based on exo-atmospheric space point target IR radiation sequences is proposed in order to improve the recognition rate.
为提高目标的正确识别率，提出一种基于空间点目标红外辐射序列的自适应时延神经网络(atnn)识别方法。
Objective: to observe the dose rate effect of adaptive response of thymocyte apoptosis and cell cycle progression induced by low dose X ray radiation.
目的：观察X线低剂量辐射诱导胸腺细胞凋亡和细胞周期进程适应性反应的剂量率效应。
Objective:To investigate whether not low dose radiation (LDR) can induce immunological adaptive response (IAR) in mouse splenocytes in vitro.
目的：观察低剂量辐射离体照射能否诱导小鼠脾细胞的免疫适应性反应。
Objective To observe the dose-rate effects of adaptive response of thymocyte DNA lysis induced by low dose radiation.
目的：观察低剂量辐射诱导胸腺细胞DNA裂解适应性反应的剂量率效应。
Objective: To explore the regulative mechanism of apoptosis-associated gene proteins on the adaptive response of splenocyte apoptosis in mice induced by low dose radiation .
目的：探讨低剂量辐射诱导小鼠脾脏细胞凋亡的适应性反应及其相关基因蛋白调控机制。
Adaptive integral method (AIM) is employed to fast compute the radiation and scattering properties of electrical large-scale structures.
研究了自适应积分方法(AIM)在计算电大尺寸目标的电特性中的应用。
Adaptive integral method (AIM) is employed to fast compute the radiation and scattering properties of electrical large-scale structures.
研究了自适应积分方法(AIM)在计算电大尺寸目标的电特性中的应用。
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