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Wyszukujesz frazę "Nhu, Nguyen Y." wg kryterium: Autor

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    Wyświetlanie 1-4 z 4
    Tytuł:
    Utility of GSMap Precipitation and Point Scale in Gauge Measurements for Stream Flow Modelling – A Case Study in Lam River Basin, Vietnam
    Autorzy:
    Kha, Dang Dinh
    Nhu, Nguyen Y.
    Long, Vu Viet
    Van, Dao Thi Hong
    Powiązania:
    https://bibliotekanauki.pl/articles/123552.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    GSMaP
    SWAT model
    merging
    Lam river basin
    flow modelling
    Opis:
    The benefit from integrating the information from multi-source was confirmed in the research of hydrologic processes in river basins. However, the use of satellite-based rainfall products in hydrologic stream flow modeling has been limited because of the perceived uncertainty associated with such data. In this study the authors presented the simulated streamflow from a SWAT model driven by merging rainfall between satellite and gauge-observed rainfall for the Lam River Basin. The results demonstrate the usefulness of merging rainfall data for stream flow modelling at a monthly time step.
    Źródło:
    Journal of Ecological Engineering; 2020, 21, 2; 39-45
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Power Quality on the Performance of Explosion-Proof Transformers in Mining in Vietnam
    Autorzy:
    Do, Nhu Y.
    Ngo, Xuan Cuong
    Nguyen, Thi Hong
    Powiązania:
    https://bibliotekanauki.pl/articles/25212166.pdf
    Data publikacji:
    2023
    Wydawca:
    Polskie Towarzystwo Przeróbki Kopalin
    Tematy:
    power quality
    performance
    explosion-proof transformer
    fuzzy system
    górnictwo
    jakość energii
    Wietnam
    Opis:
    When meeting customer demand, utility companies must consider power quality. Currently, the industrial power network in general and the underground mine power network in particular have long feeder lines, supplying power to many nonlinear loads and power electronic converters, which reduces power quality. Poor power quality can damage sensitive equipment and lead to costly repairs, leading to lost time, data corruption, and lower productivity. In this paper, a fuzzy system is developed to determine the power quality of the power network for different operating conditions and study its influence on the performance of the explosion-proof transformer in the underground mine power network in Vietnam. The simulations and calculations were performed on Matlab-Simulink software for a three-phase, 630-kVA, 6/1.2 kV explosion-proof transformer in power networks with variable power quality. A fuzzy system is developed with four measurable inputs, including frequency deviation, voltage unbalance factor, total harmonic distortion of supply voltage, total harmonic distortion of current, and an output variable, power quality. The simulation results show that the explosion-proof transformer's performance decreases when the power quality degrades, and the proposed fuzzy system can accurately diagnose this.
    Źródło:
    Inżynieria Mineralna; 2023, 2; 61--69
    1640-4920
    Pojawia się w:
    Inżynieria Mineralna
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Geological Hazard Investigation Combined with Mathematical Modeling in Flood Risk Assessment: A Case Study of Hoang Long River, Ninh Binh Province, Vietnam
    Autorzy:
    Nguyen, Nhu Y
    Ban, To Xuan
    Kha, Dang Dinh
    Powiązania:
    https://bibliotekanauki.pl/articles/27323259.pdf
    Data publikacji:
    2023
    Wydawca:
    Polskie Towarzystwo Przeróbki Kopalin
    Tematy:
    flood risk assessment
    dike-break
    dike failure
    georadar
    breach outflow
    MIKE FLOOD
    powodzie
    geologia
    Wietnam
    Opis:
    The primary function of the river dike system is to safeguard lives and property from flood hazards. However, due to aging infrastructure and various geological or anthropogenic factors, certain vulnerable sections of the dike system can emerge as the water level in the river increases. Flood maps are one tool that presents vital information for authorities and residents in the flood risk mitigation. This study's primary goal is to provide a flood map under the dike break condition using the estimated fracture size parameters from a geo-radar survey and the MIKE FLOOD model. This approach addresses the observed research gap by utilizing a survey database instead of relying on empirical models which are capable to produce the conservative estimates of the dike breach outflow. A case study is conducted on the Hoang Long River dike system in Ninh Binh Province, Vietnam.
    Źródło:
    Inżynieria Mineralna; 2023, 2; 319--325
    1640-4920
    Pojawia się w:
    Inżynieria Mineralna
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Research on Electric Leakage Protection to Improve Electrical Safety in Underground Mining in Vietnam
    Autorzy:
    Nguyen, Truong Giang
    Nguyen, Thac Khanh
    Ngo, Xuan Cuong
    Do, Nhu Y.
    Powiązania:
    https://bibliotekanauki.pl/articles/27323271.pdf
    Data publikacji:
    2023
    Wydawca:
    Polskie Towarzystwo Przeróbki Kopalin
    Tematy:
    electrical safety
    conversion devices
    mine power network
    leakage protection
    bezpieczeństwo elektryczne
    ochrona
    kopalnie
    Opis:
    To ensure safety in underground mining, it is imperative to equip yourself with electric leakage protection. Today, underground mines are gaining a high degree of mechanization and using more power electronics to enhance the operation and organization of power supplies, including the application of power electronics for DC power transmission in mining. i.e., separate the rectifier (AC-DC) from the inverter (DC-AC) with a long DC cable. The transmission of DC power changes the structure of the mine power network; then there will appear a power network with an industrial frequency of 50 Hz, a DC power network, and a power network after the variable frequency inverter. Due to the mutual interaction between DC power networks and AC power networks, leakage protection devices are unreliable, causing unsafe conditions in mining. The content of the article is to determine the leakage current in the power network when using converters in DC power transmission in mining. The research results are the basis for calculating and selecting leakage protection equipment for the purpose of improving safety in underground mining in Vietnam.
    Źródło:
    Inżynieria Mineralna; 2023, 2; 209--214
    1640-4920
    Pojawia się w:
    Inżynieria Mineralna
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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