Showing 1,301 - 1,320 results of 2,027 for search '"hydraulic"', query time: 0.10s Refine Results
  1. 1301
  2. 1302

    Prediction Model for Safe Operation of Pumping Stations Optimized by the Sparrow Search Algorithm and BP Neural Network by Ziwei Yu, Jinhuang Yu, Jinjie Liu, Chenglong Hu, Shengsheng Hu, Junjie Wang, Hehe Zhang, Huiting Lu

    Published 2024-01-01
    “…The pumping station is one of the critical parts of the hydraulic structure in China. Traditional forecasting methods are limited in accuracy, time-consuming, and high cost, resulting in limited data availability. …”
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    Article
  3. 1303

    EVALUATION OF ORGANIC MATTER REMOVAL EFFICIENCY FROM PIGGERY WASTEWATER TREATMENT BY THE UPFLOW SLUDGE BLANKET FILTRATION (USBF) SYSTEM by Văn Thoại Mỹ, Nguyễn Minh Kỳ, Bùi Trâm Anh

    Published 2017-09-01
    “…In this study, the removal of pollutants from piggery wastewater was evaluated in the USBF reactor at hydraulic retention time (HRT) of 6-15 hours and solid retention time (SRT) of 20 days. …”
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  4. 1304

    Artificial Interference of Stress Field in a Near-Fracture Zone by Water Injection in a Preexisting Crack by Yongxiang Zheng, Jianjun Liu, Bohu Zhang

    Published 2019-01-01
    “…By stress artificial intervention, critical pressure for water channelling in fractured reservoirs, directional propagation of cracks in hydraulic fracturing, and stress adjustment on the structural plane were applied. …”
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    Article
  5. 1305

    Gestion de l’eau et projet de territoire : vers une gestion intégrée du delta du Rhône by Alain Dervieux, Geneviève Jolly, Aurélien Allouche

    Published 2006-12-01
    “…Owing to the layout of hydraulic works and to the risks due to the rise of sea level, CEDE is brought to manage the dynamics between the flow coming from the catchment area, both drainage of ground and rain and that which runs through this sluice.  …”
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  6. 1306

    Finite Element Modeling Of Saint-Venant Equations For Shatt-Al Hilla by Basim Sh. Abed, Hamid H. Hussain, Khalid A. Abdul-Razzaq

    Published 2020-03-01
    “…The present study aims to solve the continuity and momentum (Saint-Venant) equations numerically to predict the hydraulic characteristics in the river using Galerkin finite element method. …”
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  7. 1307

    Spatiotemporally Combined Dimensionality Reduction Algorithm for Optimizing Long-term Operation of Multi-reservoir Systems by CHEN Jia, ZHANG Hanjun, XU Nan

    Published 2023-01-01
    “…To alleviate the “curse of dimensionality” and improve the solution efficiency while ensuring the quality of solutions in optimizing the operation of multi-reservoir systems,this paper proposes a spatiotemporally combined dimensionality reduction algorithm which integrates and improves the dynamic programming with successive approximation (DPSA) and the progressive optimality algorithm (POA).First,a chain-based successive approximation strategy is proposed to expand the DPSA's optimization mode from “single reservoir alternation” to “cascade reservoir chain alternation”,which makes up for the DPSA's shortcomings in dealing with the hydraulic coupling relationships among cascade reservoirs.Then,a dynamic variable decoupling strategy and perturbation mechanism are proposed to deal with the POA's blind search problem and dimensionality problem.Finally,the two improved algorithms are combined,in which the improved POA is applied to solving the optimization problems of cascade reservoir chains under the framework of the improved DPSA.The power generation operation problem of the cascade reservoirs in the Yuan River Basin of Hunan Province and the classical ten-reservoir problem are utilized to test the performance of the proposed algorithm.The proposed algorithm outperforms seven existing alternatives in terms of solution quality and efficiency.The results indicate that the proposed algorithm can effectively alleviate the “curse of dimensionality” in optimizing the operation of multi-reservoir systems,improve the efficiency while ensuring the quality of solutions and has potential to be applied to optimizing the operation of complex large-scale multi-reservoir systems.…”
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  8. 1308

    Dust Concentration Changing Regularities and Dust Reduction Technology by Spray Negative Pressure in Fully Mechanized Mining Face by Lirong Wu, Hongxuan Chen, Jiamin Li, Shican Fu, Yuyan Zhuang

    Published 2021-01-01
    “…Taking the 3top1110 fully mechanized caving coal face as an example, the dust distribution in the process of coal mining and hydraulic support shifting was studied. According to the dust-spray coupling experiment, three types of nozzle are chosen based on the efficiency of dust suppression. …”
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  9. 1309

    RELATIONSHIP BETWEEN INTERNAL PRESSURE AND CAVITY VOLUME CHANGE BASED ON LIQUID IMPACT LOADING TO BIMETALLIC THIN-WALLED TUBES by LIU JianWei, SUN ChangYing, LI YuHan, YAO XinQi, FAN XiangWen

    Published 2020-01-01
    “…Secondly,theory of internal pressure was analyzed in the process of the axial impact hydraulic performing and the radial forming of bimetallic thinwalled tubes. …”
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  10. 1310
  11. 1311

    Effect of Hydrologic Alteration on the Community Succession of Macrophytes at Xiangyang Site, Hanjiang River, China by Na Yang, Yehui Zhang, Kai Duan

    Published 2017-01-01
    “…However, with the water level increasing after 2010 and gently fluctuating, due to uplift by the hydraulic projects downstream as well as the flow attenuation, the dominant position of submerged macrophytes will be weakened.…”
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  12. 1312

    Optimization of Indirect Fracturing Process Parameters Based on Mechanical Properties of Fractured and Low-Permeability Coal by Wenfeng Yuan, Xigui Zheng, Niaz Muhammad Shahani

    Published 2022-01-01
    “…The key to the success of this technique is to optimize the parameters, such as water injection flow rate and fracture initiation location, so that the hydraulic fracturing parameters enable the fractures to pass through the interface between coal and rock and propagate sufficiently into the coal. …”
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    Article
  13. 1313

    A Brief Review of Recent Research on Reversible Francis Pump Turbines in Pumped Storage Plants by Xiuli Mao, Jiaren Hu, Zhongyong Pan, Pengju Zhong, Ning Zhang

    Published 2025-01-01
    “…., not only reflect operational performance (hydraulic, cavitation, sediment abrasion, and stability performance, etc.) but also directly affect the safe and efficient operation of the system. …”
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  14. 1314
  15. 1315

    Conditionally dynamic analysis of the centrifugal compressor operation in the aggregate recirculation line by A. D. Vanyashov

    Published 2024-03-01
    “…The procedure for conditionally dynamic (quasi-dynamic) hydraulic and thermal calculation of recirculation lines of compressor stations has been developed. …”
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    Article
  16. 1316

    Failure Mechanism and Factor of Safety for Spatially Variable Undrained Soil Slope by Liang Li, Xuesong Chu

    Published 2019-01-01
    “…The comparative study has demonstrated that the bishop method (with circular failure surface) exhibits performance as fairly good as that of SRT both in FS and FM for the undrained slope cases where no preferable controlling surfaces such as hydraulic tension crack and inclined weak seams dominate the failure mechanism. …”
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    Article
  17. 1317

    Mechanical evaluation and optimal mixing ratios in co-disposal of phosphate mining tailings and waste rock by Gabriel Gomes Silva, Rafael Cerqueira Silva

    Published 2024-12-01
    “…Abstract Given the complexity of the behavior of mining tailings dams built by the technique of hydraulic embankments and the recurring dam ruptures globally, especially in Brazil, ensuring enhanced safety through advanced disposal techniques becomes crucial. …”
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  18. 1318

    RBF Neural Network Backstepping Sliding Mode Adaptive Control for Dynamic Pressure Cylinder Electrohydraulic Servo Pressure System by Pan Deng, Liangcai Zeng, Yang Liu

    Published 2018-01-01
    “…According to the hydraulic principle diagram of the subgrade test device, the dynamic pressure cylinder electrohydraulic servo pressure system math model and AMESim simulation model are established. …”
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    Article
  19. 1319

    Complex Resistivity Dispersion Characteristics of Water-Bearing Coal Based on Double Cole-Cole Model by Jian Li, Dongji Lei, Chenguang Zhao, Hui Meng

    Published 2019-01-01
    “…The parameters m1 and τ2 can be used to evaluate the Sw of fractures in coal seams and thus to evaluate the effect of hydraulic fracturing.…”
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  20. 1320

    Equivalent Continuum Coupling-Based Slope Stability Analysis of Zhouning Pumped Storage Power Station by Jinhong Lin, Yongsheng Zhu, Jing Hou, Bing Pan, Weijiang Chu, Wenhong Huang

    Published 2021-01-01
    “…A 3D equivalent continuum coupling analysis of the slope of the Zhouning pumped storage power station was proposed in this study. Firstly, the hydraulic properties of rock mass, groundwater, and deformation mechanism under high-frequency fluctuations of the water level are analyzed. …”
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