In underdense plasmas, the transverse ponderomotive force of an intense laser beam with Gaussian transverse profile expels electrons radially, and it can lead t
Oxygen-doped diamond films are prepared by implanting various dose oxygen ions into the diamond films synthesized by hot filament chemical vapour deposition, an
A molecular dynamics simulation study has been performed for the microstructure evolution in a liquid metal Ni system during crystallization process at two cool
In this paper, the effect of the intrinsic distribution of cosmological candles is investigated. We find that in the case of a narrow distribution the deviation
The effects of atomic number Z on the energy distribution of hot electrons generated by the interaction of 60fs,130m J, 800nm, and 7×1017W/cm2 laser pulses wit
In this paper, we investigate the quintessence models with an oscillating equation of state (EOS) and its potentials.From the constructed potentials, which have
Steady forcing can induce the amplitude death in chaotic systems, which generally exists in coupled dynamic systems. Using the Lorenz system as a typical exampl
Based on the rate equations, we have investigated three types of chaos synchronizations in injection-locked semiconductor lasers with optical feedback. Numerica
大豆含有丰富的脂质和蛋白,还具有含水量高、吸湿性等特点,在储藏过程中容易发生变质或者老化,影响大豆品质。前人实验发现老化导致大豆种子抗氧化酶活性降低,活性氧过量积累,MDA含量升高,表明老化伴随着脂质氧化损伤,但是并不清楚哪些脂质更容易受到老化影响;此外,老化处理引起的脂质过氧化作用,在种子吸胀萌发过程是会被修复还是加剧,亦不清楚。本文以人工老化"中豆27"大豆种子为实验材料,从脂质组学的角度分析
受气候变化和新型生产条件影响,长江中游早稻种植面积呈逐年下降的趋势,玉米因省工、高效、高产等优势在南方稻作区种植量逐渐增加,近年来长江中下游出现了以玉米替代水稻的春玉米-晚稻、双季玉米和玉米-油菜等新型种植模式。然而,随着新型种植模式的出现,模式的相关栽培学研究滞后并不能指导生产和新型模式发展,不同种植模式周年产量的形成、资源的分配与利用特征,及其对环境的代价尚不明确。为此,本研究在该区传统双季稻