Results 51 to 60 of about 8,979 (244)
A Functional 2D Carbon Allotrope Combining Nanoporous Graphene and Biphenylene Segments
Advanced Materials, EarlyView.The synthesis of a novel nanoporous graphene (NPG) is reported with biphenylene segments via thermal fusion of 12‐armchair porous graphene nanoribbons grown on gold surfaces. Characterization using STM, AFM, and DFT reveals low‐defect semiconducting behaviour and tunable band gaps.
Paula Angulo‐Portugal +14 more
wiley +1 more source
Jixie chuandong, 2014 A new type of transmission mechanism——crank-group driving mechanism is introduced.Taking into account the vibration problems of the mechanism in the process of high speed,and combining with the movement distribution form of crank-group mechanism,and ...
王文将, 曹巨江, 刘岩松, 任升
doaj
Spin‐Split Edge States in Metal‐Supported Graphene Nanoislands Obtained by CVD
Advanced Materials, EarlyView.Combining STM measurements and ab‐initio calculations, we show that zig‐zag edges in graphene nanoislands grown on Ni(111) by CVD retrieve their spin‐polarized edge states after intercalation of a few monolayers of Au. ABSTRACT Spin‐split states localized on zigzag edges have been predicted for different free‐standing graphene nanostructures.
Michele Gastaldo +6 more
wiley +1 more source
Jixie chuandong, 2014 The position analysis of parallel double crank mechanism is carried out,and its kinematic analysis is carried out by using the influence coefficient method,this mechanism is a fundamental part of the crank-group driving mechanism.The kinematics ...
任升, 曹巨江, 刘言松
doaj
Pathways for FEW nexus collaboration in U.S. city resilience planning
Ecology and SocietyThe food-energy-water (FEW) nexus has been argued as an approach to improve system resilience and sustainability theoretically. However, there is limited empirical understanding of which governance factors lead to FEW nexus collaboration in practice. The
J. Leah Jones-Crank
doaj +1 more source
Journal of Inequalities and Applications, 2018 In this article, we first develop a semi-discretized Crank–Nicolson format about time for the two-dimensional non-stationary Stokes equations about vorticity–stream functions and analyze the existence, uniqueness, stability, and convergence of the semi ...
Yanjie Zhou, Zhendong Luo, Fei Teng
doaj +1 more source
Advanced Materials, EarlyView.The new Cu‐containing MOF (Me2NH2)(CuICl2)@[Cu4(INA)4Cl2O]·1.5dmf (3) contains a cation and an anion as guests and shows UV‐near‐mid‐IR absorption and near‐IR emission. MOF 3 shows gas‐solid reactivity in the presence of NH3 and HCOOH to yield two new 3D MOF.
Rajat Saha +10 more
wiley +1 more source
Advanced Materials, EarlyView.This review presents a focused and integrated perspective on copper‐based catalysts for the selective electrochemical reduction of CO2 to methanol. It elucidates active site dynamics, mechanistic pathways, and structure–activity relationships, while connecting fundamental insights with catalyst design, reactor engineering, and techno‐economic ...
Debabrata Bagchi +7 more
wiley +1 more source
Study on the Model of Slider-crank Mechanism with Clearance based on Parameter Identification Method
Jixie chuandong, 2017 In order to solve the problem of the clearance on the slider-crank mechanism and improve the position precision of the slider-crank mechanism. Starting from the simple mechanism of slider-crank mechanism,the simplified model is established.
Zeng Qingsheng +2 more
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