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Wyszukujesz frazę "Wu, Jing" wg kryterium: Autor

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    Wyświetlanie 1-5 z 5
    Tytuł:
    Laser Power Transmission and Its Application in Laser-Powered Electrical Motor Drive: A Review
    Autorzy:
    Liu, Hongzuo
    Zhang, Yixuan
    Hu, Yihua
    Tse, Zion
    Wu, Jing
    Powiązania:
    https://bibliotekanauki.pl/articles/1955981.pdf
    Data publikacji:
    2021
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    laser power transmission
    photovoltaic material
    laser diode
    optical fibre power transmission
    atmosphere transmission
    Opis:
    Laser power transmission (LPT) is considered a potentially efficient way for power delivery, especially in long-distance wireless applications and harsh hazardous environmental conditions. In contrast to other wireless power transmission (WPT) methods, LPT has many advantages such as lower device size, focused transmitting direction and high power density. With the development of technology, LPT has been widely adopted in several fields. In conservative industries, the utilisation of LPT can resolve the limitation problem in a wired connection. The adverse influence of electromagnetic interference (EMI) concerning application and high-temperature fields can be reduced. This paper will give a simple review of LPT and demonstrate the basic concept of a photoelectric emitter, transmission channel and receiver material. Based on the recent research about diode laser beam combining technology and high-efficiency multi-junction photovoltaics (PV) materials, the advised LPT devices for simple application as laser power motor will be simply discussed.
    Źródło:
    Power Electronics and Drives; 2021, 6, 41; 167-184
    2451-0262
    2543-4292
    Pojawia się w:
    Power Electronics and Drives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mechanistic study on the flotation of barite with C18H33NaO2 under microwave radiation based on UV-visible spectrophotometric analysis
    Autorzy:
    Guo, Jing
    Wen, Ming
    Wu, Jingxuan
    Powiązania:
    https://bibliotekanauki.pl/articles/2175439.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    UV-visible spectrophotometer
    microwave
    barite
    flotation mechanism
    Opis:
    Based on the pure mineral flotation tests of barite, this study investigated the effect law of microwave on barite flotation by using a UV-visible spectrophotometer (L5), solution chemistry calculation, and zeta potential, scanning electron microscope (SEM), and other testing methods. Additionally, red flotation kinetic analysis was carried out to deeply explore the mechanism of C18H33NaO2 flotation of barite under microwave radiation. Mineral flotation tests showed that after microwave treatment, the flotation recovery of barite and deionized water increased by 2.67% and 3.35%, respectively, while that of the microwave action pulp and chemically added pulp decreased by 2.90% and 8.51%, respectively. Microwave action on barite can improve its flotation recovery (up to 95.27%). The action of microwave heating can improve the positive electrical properties of the surface of barite, and accordingly, its specific surface area would be enlarged. In this case, the adsorption rate of sodium oleate on the surface of barite increased, thereby improving the flotation recovery. The flotation kinetics analysis revealed that the k-value of the primary kinetic model was the most informative among the four models of flotation kinetics, and its fitting results can truly reflect the flotation results of barite before and after the microwave action. Through the analysis of barite flotation adsorption experiment under microwave action and with sodium oleate as a collector, this study revealed the mechanism of C1818H33NaO2 on barite flotation under a microwave roaster. This study provides an important reference for the research on efficient barite flotation.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2022, 58, 6; art. no. 156349
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Enhanced sulfidation of chrysocolla with ammonium carbamate and its effect on flotation
    Autorzy:
    Wang, Ziang
    Wu, Dandan
    Cao, Jing
    Chen, Huiqin
    Powiązania:
    https://bibliotekanauki.pl/articles/24085837.pdf
    Data publikacji:
    2023
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    chrysocolla
    ammonium carbamate
    surface modification
    sulfidation
    Opis:
    In this study, flotation experiments, zeta potential, XPS, AFM, SEM-EDS, and contact angle measurements were performed to study the influence of ammonium carbamate (CH6N2O2) on the sulfidation flotation of chrysocolla. The results of the sulfidation flotation experiments showed that the recovery of chrysocolla increased more than 40% on the optimal condition after adding ammonium carbamate. In addition, the zeta potential of samples with ammonium carbamate was clearly higher than ores for pH > 6, which was due to the complexation reaction between ammonium carbamate and copper ion on the surface of chrysocolla samples. The activity of copper adsorption has also been improved. Furthermore, the XPS data indicated that the content of Cu-S compounds on the mineral surface has been significantly enhanced after ammonium carbamate complex sulfidation. The chemical analysis of the solution led to the same conclusion. The AFM results showed that ammonium carbamate had a positive impact on the adsorption of minerals surface, and increased the flotation recovery. It can be deduced from the SEM-EDS analysis that the surface of chrysocolla better combined with S–, and more Cu-S components were generated on the surface, which led to 1.04% increase of S atomic concentration. Finally, the contact angle measurements showed that the water contact angle of chrysocolla after adding ammonium carbamate could reach 90.4°, which proved that the sulfidation improved the floatability of the chrysocolla sample.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2023, 59, 3; atr. no. 168573
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    MATLAB modelling of double sided photovoltaic cell module
    Autorzy:
    Zhen, Yan
    Zuyu, Wu
    Ninghui, Zhu
    Ligen, Yuan
    Yu, Chen Jing
    Powiązania:
    https://bibliotekanauki.pl/articles/1955976.pdf
    Data publikacji:
    2021
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    double sided photovoltaic module
    back irradiance
    modelling
    output characteristics
    MPPT
    Opis:
    In this paper, the equatorial coordinate system is taken as the celestial coordinates, the double-sided photovoltaic module irradiance model is established by using the MATLAB simulation software, and the double-sided photovoltaic module irradiance model is combined with the photovoltaic module model (Jianhui (2001)) to form the mathematical model of the real-time generation system of double-sided photovoltaic modules. The effectiveness of the simulation model was verified by building an experimental platform, and the output characteristics of the optimal line spacing between the double-sided p-v module and the single-sided p-v module were further tested and compared.
    Źródło:
    Power Electronics and Drives; 2021, 6, 41; 12-25
    2451-0262
    2543-4292
    Pojawia się w:
    Power Electronics and Drives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Polarization dependent high refractive index metamaterial with metallic dielectric grating structure in infrared band
    Autorzy:
    Li, Jianmin
    Chen, Peng
    Fang, Bo
    Cai, Jinhui
    Zhang, Le
    Wu, Yinglai
    Jing, Xufeng
    Powiązania:
    https://bibliotekanauki.pl/articles/2172825.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    metamaterial
    high refractive index
    infrared band
    Opis:
    According to the theory of high refractive index of metamaterials, a composite structure of metal dielectric grating was designed to achieve high refractive index in infrared band. Based on the S-parameter inversion algorithm, we extracted the effective permittivity, the effective permeability, and the effective refractive index of the designed metamaterial. By changing the geometric parameters of the composite grating metamaterial structure, the effective refractive index of the designed metamaterial reaches more than 8.0 at the infrared resonance frequency. This is a high refractive index that many natural materials cannot achieve. It is noteworthy that the metamaterial structure has obvious polarization sensitivity. The metamaterial structure has both high refractive index and wideband zero refractive index properties when different polarized light is incident. At the same time, we further investigate the influence of metamaterial geometric parameters on the effective refractive index of metamaterials. Also, we propose a double grating metamaterial structure to obtain more degrees of freedom of metamaterial on the effective refractive index.
    Źródło:
    Optica Applicata; 2022, 52, 3; 441--460
    0078-5466
    1899-7015
    Pojawia się w:
    Optica Applicata
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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