【摘 要】
：
Later earthquake-sourced PmP phases have the potential to significantly improve ray coverage and resolution of crustal tomography methods,as their trajectories are quite different from those of shallo
【出 处】
：
Science China(Earth Sciences)
论文部分内容阅读
Later earthquake-sourced PmP phases have the potential to significantly improve ray coverage and resolution of crustal tomography methods,as their trajectories are quite different from those of shallower P phases.This paper analyzes the characteristics
其他文献
叶绿体是植物和真核藻类进行光合作用的场所。存在于叶绿体类囊体膜上的蛋白质复合物含有光反应所需的光合色素和电子传递链组分,在光合作用过程中,光化学反应发生在类囊体膜上。因此,类囊体膜是光能向化学能转化的主要场所,因而也一直是光合作用研究的热点。叶绿体类囊体膜的深入研究可以促进光合作用的分子机理研究。该文就叶绿体类囊体膜的三维构象及类囊体膜蛋白的组成和功能研究进行了综述。
促有丝分裂活化蛋白激酶(Mitogen-activated protein kinase,MAPK或MPK)途径是在真核生物中广泛存在的调控多种生理过程的信号途径,在细胞增殖、分化、凋亡、生物和非生物胁迫等生理过程的调控中起着关键的作用.盐生杜氏藻(Dunaliella salina,盐藻)是目前世界上最耐盐的真核光合生物之一.在前期实验中,已发现盐藻MAPK(DsMPK)的表达受到低温和高盐胁迫
为了探讨糖在花青素合成过程中的调节作用,采用蔗糖和其代谢糖(葡萄糖和果糖)组合处理拟南芥幼苗.实验结果表明,60 mmol/L蔗糖处理显著提高拟南芥幼苗的花青素、还原糖含量,并上调花青素合成相关基因(CHS,FLS-1,DFR,LDOX,BANYULS)的转录,对叶绿素含量和UGT78D2基因的转录无影响;20 mmol/L葡萄糖+20 mmol/L果糖处理,对花青素、叶绿素和还原糖的含量无影响,
每隔4 d对松嫩平原肥披碱草种群进入抽穗初期的生殖分蘖株进行大样本随机挂签,于籽实蜡熟期取样,分析5次采集样本生殖分蘖株数量性状的差异及其与缩短生殖生长时间的关系.结果表明:生殖分蘖株各数量性状指标均随生殖生长时间的缩短逐渐减小.生殖生长时间的缩短不利于生殖分蘖株的生殖生长、生殖分配和结实.抽穗时间越晚,对生殖分蘖株结实与生殖分配的影响越大.抽穗时间相差16 d,籽实生物量、结实率、生殖分配Ⅰ和生
Gravity Recovery and Climate Experiment(GRACE) observations have been used to de-tect the co-seismic and post-seismic gravity field variations due to the Mw=9.3 Sumatra-Andaman earthquake that occurre
近期,社会上出现了一种彻底否定张衡地动仪的极端观点。认为地动仪不过是个"无用的摆设",戏称"礼器",史书中的陇西地震是"编造的故事",100多年来各国科学家的所有复原模型也都"不过是艺术品摆设"。引起了公众认知的混乱。
以多种胁迫处理的野生型水稻中花11及其携带谷胱甘肽转移酶(GST)和过氧化氢酶(CAT)的功能获得突变体为材料,分析地上部H2O2含量、谷胱甘肽还原酶(GR)活性和同工酶谱的变化.结果显示,胁迫条件下野生型水稻(W)中H2O2的含量明显高于其突变体(M).非胁迫条件下W和M的GR同工酶都有3条带,且W和M之间无显著差异.单一镉、PEG-6000和外源H2O2处理诱导W均产生1条额外谱带,用H2O2
This study is intended to evaluate the influence of dynamic bridge-train interaction (BTI) on the seismic response of the Shinkansen system in Japan under moderate earthquakes. An analytical approach
A way to detect the seismic precursor in granular medium is described and a model of propagation for precursive stress-strain signals is proposed.A strain sensor buried in a sandpit is used to measure
A strong Mw7.0 earthquake struck Pingtung offshore of Taiwan on December 26,2006.It consisted of two major events with an 8-minute interval.The first major shock occurred at 12:26 UTC.Focal mechanism