The total and partial charge-changing cross sections of 28Si on carbon targets at 736 and 723A MeV are studied by CR-39 plastic nuclear track detectors using th
Nanowires,nanofibers and nanotubes have been widely used as the building blocks in micro/nano-electromechanical systems,energy harvesting or storage devices,and
高菜(Brassica juncea Czern. et Coss.)为十字花科芸薹属芥菜类蔬菜,一二年生草本植物。高菜为异花授粉作物,杂种优势明显。使用常规方法,选择一个纯合自交系需要5~7年时间,应用小孢子技术能够在1-2年得到纯合的双单倍体植株,可缩短育种年限、提高育种效率;此外,获得的胚再生植株经过自然或人工加倍可获得双单倍体(DH)群体,便于遗传分析、构建遗传图谱、基因定位、转基因育种以
Nonlinear features of electron-acoustic shock waves are studied.The Burgers equation is derived and converted to the time fractional Burgers equation by Agrawal
In theory,engineered anomalous transmission in passive materials and waveguide devices can be used to compensate for waveform distortions.However,they suffer fr
Molecular dynamics simulations are employed to investigate the effect of thermal convection induced only by dissipative lateral walls on density segregation of