695 research outputs found

    Yang men nü jiang. (2)

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    王晶华, 楊秋玲.Live recording.Electronic reproduction from Rulan Chao Pian Audio Cassette Collection.Performers: 王晶华, 楊秋玲.Performance on 1979/6/7.Sung in Chinese.Wang Jinghua, Yang Qiuling.Performers: Wang Jinghua, Yang Qiuling

    Notes on Halpe paupera Devyatkin, 2002 (Lepidoptera: Hesperiidae)

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    Xue, Guoxi, Zeng, Tingting, Lo, Yik Fui Philip, Wang, Qiuling, Li, Meng, Yang, Jinchu (2024): Notes on Halpe paupera Devyatkin, 2002 (Lepidoptera: Hesperiidae). Zootaxa 5399 (3): 287-295, DOI: 10.11646/zootaxa.5399.3.8, URL: http://dx.doi.org/10.11646/zootaxa.5399.3.

    A new Faraday rotation measurement methodfor the study on magneto optical property of PbO-Bi2O3-B2O3 glasses for current sensor application

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    MAGNETO-OPTICAL current transformers (MOCT) based on the Faraday Effect provide numerous ad-vantages over the conventional transformers. However the commonly used materials in MOCT are crystals that are very expensive and temperature dependence thus will cause many problems for the output signal. Cost efficient diamagnetic PbO-Bi2O3-B2O3 (PBB) glass system is fabricated in this study, for the aim of ob-taining a good candidate glass with high Verdet constant and good temperature resistance to replace crystals. A home-made optical bench was setup, calibrated and used for measuring the Verdet constant of the fabri-cated glasses. Glass with composition of 50%PbO-40%Bi2O3-10%B2O3 in mol showed high Verdet constant (0.1533 min·G–1·cm–1) and good value of the figure of merit (0.02635 min·G–1), which can be considered as the ideal candidate for MOCT applications

    Properties and structure of Faraday rotating glasses for magneto optical current transducer

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    AbstractHigh heavy metal oxides (60–100mol.%) ternary PbO–Bi2O3–B2O3 (PBB) glasses were fabricated and characterized. Using a homemade single lightway DC magnetic setup, Verdet constants of PBB glasses were measured to be 0.0923–0.1664min/Gcm at 633nm wavelengths. Glasses with substitution of PbO by Bi2O3 were studied in terms of their Faraday effects. PbO–Bi2O3–B2O3=50–40–10mol.% exhibited good thermal stability, high Verdet constant (0.1503min/Gcm) and good figure of merit (0.071). Based on this glass, a magneto optical current sensor prototype was constructed and its sensitivity at different currents was evaluated to be 8.31nW/A

    Dual p-n Z-scheme heterostructure boosted superior photoreduction CO2 to CO, CH4 and C2H4 in In2S3/MnO2/BiOCl photocatalyst

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    The creation of a Z-scheme heterojunction is a sophisticated strategy to enhance photocatalytic efficiency. In our study, we synthesized an In2S3/MnO2/BiOCl dual Z-scheme heterostructure by growing BiOCl nanoplates on the sheets of In2S3 nanoflowers, situated on the surface of MnO2 nanowires. This synthesis involved a combination of hydrothermal and solution combustion methods. Experiments and density functional theory (DFT) calculations demonstrated that the In2S3/MnO2/BiOCl composite exhibited notable photo reduction performance and photocatalytic stability. This was attributed to the pivotal roles of BiOCl and MnO2 in the composite, acting as auxiliaries to enhance the electronic structure and facilitate the adsorption/activation capacity of CO2 and H2O. The yield rates of CO, CH4, and C2H4 over In2S3/MnO2/BiOCl as the catalyst were 3.94, 5.5, and 3.64 times higher than those of pure In2S3, respectively. Photoelectrochemical analysis revealed that the dual Z-scheme heterostructure, with its oxygen vacancies and large surface area, enhanced CO2 absorption and active sites on the nanoflower/nanowire intersurfaces. Consequently, the dual Z-scheme charge transfer pathway provided efficient channels for boosting electron transfer and charge separation, resulting in high C2H4, CH4, and CO yields of formed and exihibits an promising photoreduction rate of CO2 to CO (51.2 μmol/g.h), CH4 (42.4 μmol/g.h) and C2H4 (63.2 μmol/g.h), respectively. DFT, in situ Diffuse reflectance infrared fourier transform spectroscopy, and temperature-programmed desorption tests were employed to verify the intermediates pathway. The study proposed a potential photocatalytic mechanism based on these findings
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