The equivalent medium theory of metamaterials provides a way to obtain their effective constitutive parameters.How-ever,because of its non-reciprocity,the complexity of the electromagnetic coupling,and a metallic bottom layer,it has been challenging to re
Noise and noise propagation are inevitable and play a constructive role in various biological processes.The stability of cell homeostasis is also a critical issue.In the unidirectional transition cascade of colon cells,stem cells (SCs) are the source.They
Design and simulation results of a novel multifunctional electronic calibration kit based on microelectromechani-cal system (MEMS) single-pole double-throw (SPDT) switches are presented in this paper.The short-open-load-through(SOLT) calibration states ca
We investigate the ultrafast spin dynamics of an antiferromagnet in a ferromagnet/antiferromagnet heterostructure Fe/GdFeO3 via an all-optical method.After laser irradiation,the terahertz spin precession is hard to be excited in a bare GdFeO3 without spin
Signal transduction is an important and basic mechanism to cell life activities.The stochastic state transition of receptor induces the release of signaling molecular,which triggers the state transition of other receptors.It constructs a nonlinear sigalin
We propose a terahertz hybrid metamaterial composed of subwavelength metallic slits and graphene plasmonic rib-bons for sensing application.This special design can cause the interaction between the plasmon resonances of the metallic slits and graphene rib
2009年,经过近二十年的设计、施工和安装调试,位于欧洲核子中心(CERN)的大型强子对撞机(Large Hadron Collider,LHC)终于正式对撞成功,运行于其上的紧凑型缪子螺线管(Compact Muon Solenoid,CMS)①探测器也开始运行取数.三年后,CMS实验与ATLAS实验共同宣布,在质量125 GeV发现了希格斯玻色子②.这是举世瞩目的高光时刻,意味着粒子物理标准模型预言的基本粒子全部被发现,人类对粒子物理的探索进入了新的领域.
1.引言rn北京时间2021年4月7日费米实验室公布了缪子反常磁矩的最新结果,综合布鲁克海文国家实验室的数据后,平均偏差达到了4.2σ①.根据高能物理中判定新发现的5σ原则,此次实验结果极大增强了粒子物理学家对于新物理的信心,粒子物理又爆发了新的生命力.rn那么为何物理学家们如此关心这个实验结果?其背后会对我们理解我们的世界带来怎样的帮助呢?
The effect of nitrogen flow and growth temperature on extension of GaN on Si substrate has been studied.By in-creasing the nitrogen flow whose outlet is located in the center of the MOCVD (metal-organic chemical vapor deposition)gas/particle screening fla
The special any-polar resistive switching mode includes the coexistence and stable conversion between the unipolar and the bipolar resistive switching mode under the same compliance current.In the present work,the any-polar resistive switching mode is dem