【摘 要】
：
Insolation change is a primary driver for climate variation at orbital scales [1,2].During the Holocene (ca.11.7 ka BP to present),orbitally induced seasonal variations in insolation varied markedly,with a long-term decrease in boreal summer (hereafter su
【机 构】
：
Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China;Institute of Ge
论文部分内容阅读
Insolation change is a primary driver for climate variation at orbital scales [1,2].During the Holocene (ca.11.7 ka BP to present),orbitally induced seasonal variations in insolation varied markedly,with a long-term decrease in boreal summer (hereafter summer)and increase in boreal winter (hereafter winter) [2].This offers an opportunity to investigate the climate system\'s response to insolation forcing.However,previous studies that focused on Holo-cene temperature reconstructions and simulations [3-5] have raised the question of how temperature responds to insolation changes.
其他文献
如果将物体分散到无法分析的单位,例如光子,人们就称这样的粒子为量子,而量子纠缠则是指利用某种方法产生几种相关联的量子,不管这几种量子各自彼此间距有多远,内部也并不是同一个介质,只是其中某个量子态的改变将会影响到另一种量子的态.文本主要讲述了量子的特性和量子纠缠的现象,量子纠缠在生物界的存在现象,以及量子纠缠在计算、通讯和军事领域的应用情况,最后探讨量子纠缠可能形成的原因.
本文结合城市轨道交通的空间环境以及所面向的用户群体,从定位需求、定位方案等方面进行室内定位技术分析对比,阐述了基于UWB的室内定位技术部署方案.
The dust cycle is an important component of the Earth system,and dust storms are a severe environmental issue affecting many countries around the world [1].East Asia,the most populous terri-tory on Earth,has been frequently affected by dust storms in the
We present a novel method for designing transformation optical devices based on electrostatics.An arbi-trary transformation of electrostatic field can lead to a new refractive index distribution,where wave-fronts and energy flux lines correspond to equipo
The use of organic hole transport layer (HTL) Spiro-OMeTAD in various solar cells imposes serious stabil-ity and cost problems,and thus calls for inorganic substitute materials.In this work,a novel inorganic MnS film prepared by thermal evaporation has be
粒子物理学是研究微观物质基本组成及其相互作用的前沿基础学科.聚焦粒子物理领域的几大研究热点方向——暗物质物理、中微子及粒子天体物理、缪子反常磁矩、重味物理与强子物理、希格斯物理与电弱物理及其他超标准模型新物理现象寻找,回顾了2021年粒子物理领域所取得的重要进展,并对相关方向的未来研究前景及未来大科学工程计划作了初步的展望.
Recently,research on two-dimensional (2D) semiconductors has begun to translate from the fundamen-tal investigation into rudimentary functional circuits.In this work,we unveil the first functional MoS2 artificial neural network (ANN) chip,including multip
回顾了光学领域在2021年的重大进展,盘点了微纳光学、强激光与超快光学、超分辨与成像技术、量子计算与光通信、生物光子学、量子光学、光学探测与整形、涡旋光、孤子光学、人工智能、光学传感、太赫兹光学、光伏光电、照明显示和拓扑光子学等15个光学技术研究领域的重大进展,探讨了其在未来可能会对人类生存及生活方式产生的巨大影响.
创新文化是先进文化的重要内涵,是引领和推动科技创新实践的内在动力和外在社会氛围,是科技创新活动中所产生的能够体现整体价值观的群众创新精神的总和.习近平总书记早在2014年就指出:实施创新驱动发展战略,就是要推动以科技创新为核心的全面创新.最近,他又强调指出:我国“十四五”时期以及更长时期的发展对加快科技创新提出了更为迫切的要求.长三角是中国科技创新的领头羊,科技创新作为新动能和新引擎在推进长三角区域一体化高质量发展中扮演着十分重要的角色.加强对创新文化引领创新实践的研究,对于推动长三角一体化高质量发展具有
The practical application of high-energy lithium-sulfur battery is plagued with two deadly obstacles.One is the “shuttle effect” originated from the sulfur cathode,and the other is the low Coulombic efficiency and security issues arising from the lithium