In flowering plants,pollen tubes are attracted to the ovule by secreted peptides to release the sperm cells for double fertilization.This process is species-spe
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The drumstick tree(Moringa oleifera Lam.) is a perennial crop that has gained popularity in certain developing countries for its high-nutrition content and adap
<正>Looking back a decade ago when I decided to use"model animal"to name our newly established institute,my outrageous boldness can only be described by the old
我们每天都会用到很多很多不一样功能、不一样用途的物品,它们能让我们的生活变得更方便、更美好。你有没有想过把它们写进你的日记里,形成一篇状物日记呢?今天就让我们来一
本文分别将Kerner和van der Poel提出的两种平均区域理论应用于几种双组分弹性体共混物中,并将理论计算结果与实验得到的共混物在小形变下的动态性能加以比较。尽管共混物的
本文研究了轴压和热载联合作用下复合材料层板和加筋板的稳定性问题。按照逐次修改的拉格朗日列式法建立了层板结构的非线性有限元方程,应用增量法和牛顿法混合求解。计算结