The influences on the neutrino energy loss rates in iron group nuclei at the same density are investigated in the presence of strong electron screening and in t
In this paper, the fractional-order Genesio-Tesi system showing chaotic behaviours is introduced, and the corresponding one in an integer-order form is studied
试验于2011-2012年在山东农业大学农学试验站(泰安)进行,采用品种、氮、硫三因素不完全正交设计,供试品种为烟农19和汶农6号,研究高产条件下不同基因型小麦氮、硫营养的互作效应。结果表明:1、氮硫互作对小麦开花后茎、叶、籽粒中全硫、可溶性硫和非可溶性硫含量的影响单施氮肥比单施硫肥有利于小麦开花后叶片中全硫和非可溶性硫含量的提高,氮硫配施使叶片中全硫和非可溶性硫含量进一步增加,但单施硫肥显著提高
The B-and P-doped hydrogenated nanocrystalline silicon films (nc-Si:H) are prepared by plasma-enhanced chemical vapour deposition (PECVD) .The microstructures o
A new improved nuclear partition function is employed to calculate the nuclear statistical equilibrium (NSE) in core-collapse supeova environment. The results s
海峡两岸尽管数十年来因相异的历史经验与政治隔阂,让两者在艺术上以各自的路径发展出不同的言说性格。但置于当代世界高度资本化与全球化的脉络下,两岸所面临的西方文化“他
This paper reports a new four-dimensional hyperchaotic system obtained by adding a controller to a threedimensional autonomous chaotic system. The new system ha
In this paper a controller of pulse coupling feedback (PCF) is designed to control chaotic systems. Control principles and the technique to select the feedback
核酮糖-1,5-二磷酸羧化酶/加氧酶(Ribulose-1,5-bisphosphate carboxylase/oxygenase,简写Rubisco)是叶片中含量最丰富的可溶性蛋白,其通过影响光合碳同化和光呼吸过程对光合作用产生明显影响。但是该酶在植物体内的催化效率很低,只有在Rubisco活化酶(RCA)存在时,才能保持较高的催化活性。RCA是一种核编码叶绿体蛋白,广泛存在于光合生物中,具有
试验于2010和2011年在山东农业大学南校区农学实验站进行。本研究包含大田和微区15N两个试验,采用两种耕作方式和4种施氮方式相结合的试验思路,研究深松和控释尿素对玉米氮素积累分配和利用影响。试验材料选取登海3号(D)和郑单958(Z)两个品种。研究了深松和控释尿素对玉米地上部干物质积累分配、肥料氮积累分配、肥料氮和土壤氮的吸收利用及土壤氮素残留的影响,初步明确了深松和控释尿素对玉米氮素吸收利用