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Wyszukujesz frazę "Meng, Xiaofang" wg kryterium: Autor

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    Wyświetlanie 1-3 z 3
    Tytuł:
    Almost periodic synchronization of fuzzy cellular neural networks with time-varying delays via state-feedback and impulsive control
    Autorzy:
    Li, Yongkun
    Wang, Huimei
    Meng, Xiaofang
    Powiązania:
    https://bibliotekanauki.pl/articles/331017.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    almost periodic solution
    fuzzy cellular neural networks
    time varying delays
    state feedback
    impulsive control
    rozwiązanie okresowe
    sieć neuronowa
    opóźnienie czasowe
    sprzężenie zwrotne
    Opis:
    In this paper, we are concerned with drive-response synchronization for a class of fuzzy cellular neural networks with time varying delays. Based on the exponential dichotomy of linear differential equations, the Banach fixed point theorem and the differential inequality technique, we obtain the existence of almost periodic solutions of this class of networks. Then, we design a state feedback and an impulsive controller, and construct a suitable Lyapunov function to study the problem of global exponential almost periodic synchronization for the drive-response systems considered. At the end of the paper, we provide an example to verify the effectiveness of the theoretical results.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2019, 29, 2; 337-349
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Structure and dynamics of water adsorbed on the lignite surface: Molecular dynamics simulation
    Autorzy:
    You, Xiaofang
    He, Meng
    Cao, Xiaoqiang
    Lyu, Xianjun
    Li, Lin
    Powiązania:
    https://bibliotekanauki.pl/articles/109688.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    low rank coal
    water molecule
    oxygen-containing functional groups
    molecular dynamics
    Opis:
    The effects of oxygen-containing functional groups on the structure and dynamic properties of water molecules near a lignite surface were investigated through molecular dynamics (MD) simulations. Because of its complex composition and structure, a graphite surface containing hydroxyl, carboxyl, and carbonyl groups was used to represent the lignite surface model. According to X-ray photoelectron spectroscopic (XPS) results, the composing proportion of hydroxyl, carbonyl and carboxyl is 21:13:6. The density profiles of oxygen and hydrogen atoms indicate that the brown coal surface characteristics influence the structural and dynamic properties of water molecules. The interfacial water is much more ordered than bulk water. The results of the radial distribution functions, mean square displacements, and local self-diffusion coefficients for the water molecules in the vicinity of three oxygen-containing functional groups confirmed that carboxyl groups are the preferential adsorption sites.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2019, 55, 1; 10-20
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of the degree of polymerization of nonylphenol polyoxyethylene ether on the dewatering of low-rank coal
    Autorzy:
    Li, Lin
    He, Meng
    Liu, Mingpu
    Lin, Mengyu
    Hu, Shanpei
    Yu, Hao
    Wang, Qingbiao
    You, Xiaofang
    Powiązania:
    https://bibliotekanauki.pl/articles/1449205.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    low-rank coal
    NPEO
    dewatering
    adsorption
    long-flame coal
    Opis:
    In this study, we investigated the effect of the hydrophilic ethylene oxide chain lengths (i.e., degree of polymerization) of nonylphenol polyoxyethylene ether (NPEO-x, x = 8, 10, and 12) on the dewatering of low-rank coal slime through dewatering and adsorption experiments and X-ray photoelectron spectroscopy (XPS) measurements. The dewatering experiments showed that the adsorption of NPEO changed the water content of the low-rank coal slime: NPEO-8 achieved the best effect, followed, in decreasing order, by NPEO-10 and NPEO-12. Adsorption experiments revealed that the adsorption isotherms of NPEO-x on the low-rank coal surface conform with the Langmuir model, and its adsorption kinetics follow the pseudo-second-order kinetic equation. Furthermore, the adsorption is a spontaneous process and controlled by both intraparticle diffusion and liquid film diffusion. The XPS results showed that the adsorption of NPEO-x decreased the content of oxygencontaining groups and, thus, improved the hydrophobicity of the low-rank coal surface. Further, the use of NPEO-x with a low degree of polymerization (x = 8) improves the hydrophobicity of the coal surface and decreases the water content of low-rank coal slime.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2020, 56, 4; 723-736
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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