Phototactic behavior of Daphnia carinata as an indicator of chromium biotoxicity.;
利用隆线溞趋光行为评价铬的生物毒性
The study on the effects of the different levels of phosphorus on heavy metal(Cu2+,Zn2+ and Cd2+) joint-biotoxicity by the phototactic behavior of Daphnia carinata.
运用水溞趋光行为的抑制试验,研究了水体中不同磷营养水平和重金属(Cu、Zn、Cd)共同存在时的联合生物毒性效应。
The microstructure of the compound eye under light and dark adaptation and phototactic behavior of the dominant predatory enemies Chrysopa pallens Ramber in many farmlands and orchards was investigated by means of optics microscope, histology and behaviour measure.
本文采用组织解剖学及行为学方法研究了农田、果园等生态系统中的优势种捕食性天敌—大草蛉Chrysopa pallens Ramber成虫在不同明暗条件下的复眼显微结构变化规律及其趋光行为反应，主要研究结果如下：1。
Applying phototactic behaviour of Daphnia to monitor water quality.;
利用水溞的趋光行为监测水质
The effects of different forms of nitrogen on heavy metal(Cu2+,Zn2+ and Cd2+) joint-biotoxicity by the phototactic behaviour of Daphnia carinata were researched.
运用水溞趋光行为的抑制试验研究了水体中不同氮形态和重金属(Cu、Zn、Cd)共存时的联合生物毒性效应。
The phenomenon described in the title is interpreted by the angle changing from acute to obtuse in the aberration formula.
对光行差公式中钝角变成锐角的现象给出了物理解释 ,澄清了“从前面看到了从后面来的光”的模糊图像 。
This paper introduces the formation and changes of diurnal aberration and annual aberration and compares in simple language the difference of directions between annual aberration and annual parallax and the difference of time when extremes emerge.
介绍了周日光行差、周年光行差的形成与变化。
The absorption and photoluminescence spectra of these substituted Alq_3 derivatives were investigated both in solutions and in thin films.
研究了获得的5种取代三(8-羟基喹啉)铝衍生物溶液和固体薄膜中的发光行为,发现通过不同位置的氟取代可对Alq_3的发光性能进行调控。