15,113 research outputs found

    The Design and Construction of Public Service Building in Developing Rural Regions During the Post COVID-19 Period: Cased on a Chinese Village Centre

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    The spread of COVID-19 has caused an increasing demand for public medical room. Cases of Chinese Huoshenshan Hospital and mobile cabin hospitals proved the effectiveness of constructing emergent medical buildings. However, these cases, usually with strict requirements on technology and infrastructure, are hard to implement in developing rural regions. Therefore, there is an urgent need for adapting industrial construction to the rural situation. This research introduced an adaptive approach for rural projects delivery during COVID-19. It is based on a longitudinal case study, recording and analysing the construction process of a village centre in Jiangsu, China, from 2019 to 2020. By comparing the construction process of actual operation and traditional method, the advantages in a shorter building period and lower labour density were verified. This research pointed out neglected risks in developing countries and provided a practical construction approach in these areas. It supported the prevention of COVID-19 global wide

    The Structure on Invariant Measures of C1C^1 generic diffeomorphisms

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    Let Λ\Lambda be an isolated non-trival transitive set of a C1C^1 generic diffeomorphism f\in\Diff(M). We show that the space of invariant measures supported on Λ\Lambda coincides with the space of accumulation measures of time averages on one orbit. Moreover, the set of points having this property is residual in Λ\Lambda (which implies the set of irregular+^+ points is also residual in Λ\Lambda). As an application, we show that the non-uniform hyperbolicity of irregular+^+ points in Λ\Lambda with totally 0 measure (resp., the non-uniform hyperbolicity of a generic subset in Λ\Lambda) determines the uniform hyperbolicity of Λ\Lambda

    Ground state properties of one-dimensional Bose-Fermi mixtures

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    Bose-Fermi mixtures in one dimension are studied in detail on the basis of an exact solution. Corresponding to three possible choices of the referecce state in the quantum inverse scattering method, three sets of Bethe-ansatz equations are derived explicitly. The features of the ground state and low-lying excitations are investigated. The ground state phase diagram caused by the external field and chemical potential is obtained

    Rhodium complexes bearing tetradentate diamine-bis(phenolate) ligands

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    Using tetradentate, dianionic ligands, several new rhodium complexes have been prepared. Some of these diamine-bis(phenolate) compounds, are active for C–H activation of benzene. These complexes are air and thermally stable. All four complexes were characterized by X-ray diffraction
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