The plasmonic response of gold dusters with atom number (N) =100-70000 was investigated using scanning transmission electron microscopy-electron energy loss spectroscopy.For decreasing N,the bulk plasmon remains unchanged above N =887 but then disappears,
A synchrotron light source is familiar to many researchers.Biologists use it to determine structures ofproteins and other biomacromolecules;material scientists use it to analyze internal structures of different materials;physicists use it to explore the b
Skywave refers to the electromagnetic wave reflected or refracted from the ionosphere and propagated in the form of a guided wave between the ionosphere and the Earth\'s surface.Since the skywave can propagate over large distances,it has been widely use
A fossil eudicot,Gansufructus saligna gen.et sp.nov.,is reported from the Early Cretaceous (late Aptian-early Albian) of the Gansu Province,Northwest China,based on numerous well-preserved axes with attached leaves and infructescences.The leaves are alter
Clean air policies in China have substantially reduced particulate matter (PM2.5) air pollution in recent years,primarily by curbing end-of-pipe emissions.However,reaching the level of the World Health Organization (WHO) guidelines may instead depend upon
\'Throughout the world,medical research has never been equi-table.Diseases with more patients and better publicity always grasp more attention,get more funding,and are better studied,\'said WenmingWu,a digestive surgeon and the vice-President of the P
Prickles act against herbivores,pathogens or mechanical injury,while also preventing water loss.However,whether prickles have new function and the molecular genetics of prickle patterning remain poorly explored.Here,we generated a high-quality reference g
Multispecies coalescent (MSC) is the extension of the single-population coalescent model to multiple species.It integrates the phylogenetic process of species divergences and the population genetic process of coalescent,and provides a powerful framework f
The lithium-sulfur (Li-S) battery is considered to be a potential next-generation power battery system,however,it is urgent that suitable materials are found in order to solve a series of challenges,such as the shuttle effect and lithium dendrite growth.A