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Yu Shi
Researcher at Tsinghua University
Publications - 6
Citations - 1072
Yu Shi is an academic researcher from Tsinghua University. The author has contributed to research in topics: Young's modulus & Nanowire. The author has an hindex of 4, co-authored 6 publications receiving 1007 citations. Previous affiliations of Yu Shi include National Center for Electron Microscopy & Lawrence Berkeley National Laboratory.
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Size dependence of Young's modulus in ZnO nanowires.
TL;DR: A core-shell composite NW model in terms of the surface stiffening effect correlated with significant bond length contractions occurred near the {1010} free surfaces is proposed to explore the origin of the size dependence, and it is possible to estimate the size-related elastic properties of GaN nanotubes and relative nanostructures by using this model.
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Diameter dependence of modulus in zinc oxide nanowires and the effect of loading mode: In situ experiments and universal core-shell approach
TL;DR: In this article, the diameter dependence of tensile modulus (TM) is further compared with that of bending modulus, shown earlier, with diameters of zinc oxide nanowires decreasing in an intermediate range (about 30-120 nm).
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Determination of the natural frequency of a cantilevered ZnO nanowire resonantly excited by a sinusoidal electric field.
TL;DR: This paper investigates the resonance behaviour of ZnO NWs in a nanotip-nanowire system and finds that forced and parametric resonance are two basic modes of the observed multi-frequency resonances.
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Water Chains Guide the Growth of Monoatomic Copper Wires on Cu(110)
TL;DR: In this article, the formation of monatomic copper wires on Cu(110) following reaction with adsorbed water in the temperature range of 180-340 K was reported, and the density and length of the monatomic wires correlate with the extent of the dissociation reaction of water leading to formation of one-dimensional mixed H2O-OH chains.
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Synthesis and structural characterization of single crystalline zigzag SnO2 nanobelts.
TL;DR: Crystallographic analyses revealed that the zigzag morphology is formed with alternating growth directions between two energy-equal ( 101) and (101) planes, and structural and compositional characterization show that the nanobelts do not grow directly on theIron substrate but on the small crystalline grains deposited on the iron oxide columns, which are ascribed to the oxidation of the iron substrate.