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  • Open Access

    ARTICLE

    Numerical Investigation of Influence Factors on Underground Powerhouse Using an Anisotropic Ubiquitous Joint Model

    Junfei Dai1,*, Weijiang Chu2,3,*, Xiangming Ge2,3, Qingxiang Meng4

    CMES-Computer Modeling in Engineering & Sciences, Vol.143, No.3, pp. 3253-3277, 2025, DOI:10.32604/cmes.2025.065063 - 30 June 2025

    Abstract The configuration of underground powerhouses is crucial in pumped-storage hydropower projects, which play a vital role in maintaining grid stability, facilitating the integration of renewable energy sources, and managing flood risks. However, geotechnical challenges, such as complex joint orientations, anisotropy in in-situ stress, and rock damage caused by excavation, require thorough stability assessments. This research employs the ubiquitous anisotropic joint model within FLAC3D to investigate the effects of joint dip angle, joint dip direction, and the alignment of in-situ stress on the stability of surrounding rock formations. The key parameters analyzed include joint cohesion, friction angle, More >

  • Open Access

    ARTICLE

    A Numerical Study on Erosion and Wear Mechanisms in Variable Diameter Bend Pipes

    Li Wang1, Haipeng Mu1, Jiming Zhu2,*, Zhongchang Wang3

    FDMP-Fluid Dynamics & Materials Processing, Vol.21, No.4, pp. 989-1005, 2025, DOI:10.32604/fdmp.2025.057931 - 06 May 2025

    Abstract To elucidate the relationship between pipeline erosion and wear during slurry transportation, this study considers three key influencing parameters, namely, the ratio of inlet to outlet pipe diameter, the length of the variable diameter section, and the roughness of the pipe wall. The impact of these factors on pipeline erosion and wear is analyzed using a single-factor analysis approach. In particular, the Fluent software is employed to conduct the required numerical simulations for variable diameter elbows of varying morphologies. The results indicate that as the inlet to outlet diameter ratio increases, the wear on… More >

  • Open Access

    REVIEW

    Hydrodynamic Cavitation Enhanced SR-Aops Degradation of Organic Pollutants in Water: A Review

    Xiufeng Zhu1,2, Jingying Wang1,*

    FDMP-Fluid Dynamics & Materials Processing, Vol.20, No.4, pp. 671-692, 2024, DOI:10.32604/fdmp.2023.045260 - 28 March 2024

    Abstract

    SR-AOP (sulfate radical advanced oxidation process) is a novel water treatment method able to eliminate refractory organic pollutants. Hydrodynamic cavitation (HC) is a novel green technology, that can effectively produce strong oxidizing sulfate radicals. This paper presents a comprehensive review of the research advancements in these fields and a critical discussion of the principal factors influencing HC-enhanced SR-AOP and the mechanisms of synergistic degradation. Furthermore, some insights into the industrial application of HC/PS are also provided. Current research shows that this technology is feasible at the laboratory stage, but its application on larger scales requires

    More > Graphic Abstract

    Hydrodynamic Cavitation Enhanced SR-Aops Degradation of Organic Pollutants in Water: A Review

  • Open Access

    REVIEW

    Lateral Performance for Wood-Frame Shear Walls–A Critical Review

    Wei Xu1,2, Ottavia Corbi3,*, Seithati Mapesela1, Yue Chen1,2, Milan Gaff4,5, Haitao Li1,2,*

    Journal of Renewable Materials, Vol.11, No.5, pp. 2143-2169, 2023, DOI:10.32604/jrm.2023.026773 - 13 February 2023

    Abstract Wood is a green material in line with the sustainable development strategy. From the excellent performance of engineering wood products, modern wood structures represented by light wood structures have gained more development opportunities. As an indispensable part of light wood structure systems, the wood-frame shear wall plays a vital role in the bearing capacity and earthquake resistance of light wood structure systems. This paper is focused on a review of the lateral performance of wood-frame shear walls and classifies the influencing factors in relevant experimental research into three categories, including internal factors such as shear More >

  • Open Access

    ARTICLE

    Thermal Analysis by Means of Differential Scanning Calorimetry of the Characteristic Thermodynamic Temperatures of a Cu-Zr-Al Bulk Metallic Glass

    Yanhong Li*, Bing Li, Xinhui Fan, Ke Yang, Xin Wang

    FDMP-Fluid Dynamics & Materials Processing, Vol.18, No.1, pp. 71-80, 2022, DOI:10.32604/fdmp.2022.017922 - 10 November 2021

    Abstract In this study a Cu43Zr48Al9 bulk metallic glass prepared by the copper mold casting method is considered. In recent years, Cu-Zr-Al systems like this have enjoyed widespread attention due to their high strength, high hardness, high corrosion resistance and low cost. Here samples of this substance are studied using DSC (Differential scanning calorimetry) to determine the effect of different test conditions (heating rate, sample mass, sample specific surface area and sample crystal phase) on the characteristic thermodynamic temperature of the bulk metallic glass. Experimental results show that almost all of the five characteristic thermodynamic temperatures More >

  • Open Access

    ARTICLE

    ALGORITHM AND INFLUENCE FACTOR STUDY ON FLOW PATTERN TRANSITION FROM STRATIFIED FLOW TO NON-STRATIFIED FLOW OF GAS-LIQUID TWO-PHASE FLOW

    Rongge Xiaoa,*, Dong Wanga, Shuaishuai Jina, Hongping Yub, Bo Liua

    Frontiers in Heat and Mass Transfer, Vol.16, pp. 1-9, 2021, DOI:10.5098/hmt.16.11

    Abstract Based on the Viscous Kelvin-Helmholtz theory used by D. Barnea & Y. Taitel (1993), a two-fluid stratified flow model of gas-liquid two-phase flow is established. Using the mathematical derivation, the influence of various influence factors on the stability of liquid level structure is synthesized. Compared with the criteria of D Barnea & Y. Taitel (1993) and Taitel & Dukler(1976) , and the algorithm of flow pattern transition criterion of stratified flow is proposed. According to the data of multiphase flow experimental loop, the influence of liquid viscosity and the instantaneous volume flow rate change of More >

  • Open Access

    ARTICLE

    Psychological Influence Factors Analysis of the New Generation Employees’ Moral Choices from the Perspective of Cognitive Neurology

    Bo Liu*, Wei Xie, Jiahao Zhang, Cong Chen

    International Journal of Mental Health Promotion, Vol.23, No.4, pp. 589-604, 2021, DOI:10.32604/IJMHP.2021.015045 - 28 October 2021

    Abstract At present, the academic researches on moral choices focus mainly on the individuals’ external behaviors, without fully considering the influences of the individuals’ internal psychological factors. Based on the model of complete information static games in the Non-cooperative Game theory, the present research has designed a “Red and Blue Experiment” to explore the psychological influencing factors of the new generation employees’ moral choices. The research has conducted psychoanalysis on the new generation employees through experiments and interviews with 118 data sources, and concluded the characteristics in relation to the different stages of psychological processes and More >

  • Open Access

    ARTICLE

    Species Diversity of Arbuscular Mycorrhizal Fungi in the Rhizosphere of Hevea brasiliensis in Hainan Island, China

    Xiubing Gao1,3, Jiejie Lv2, Can Guo1, Anlong Hu3, Xiaomao Wu3, Zengping Li4,*

    Phyton-International Journal of Experimental Botany, Vol.90, No.1, pp. 179-192, 2021, DOI:10.32604/phyton.2021.012968 - 20 November 2020

    Abstract Hevea brasiliensis is one of the important economic trees with a great economic value for natural rubber production. Symbiosis between roots of H. brasiliensis and arbuscular mycorrhizal fungi (AMF) is widely recognized, and can provide a range of benefits for both of them. Hainan Island harbors is one of the largest plantations of H. brasiliensis in China, whereas the information regarding the diversity of AMF in the rhizosphere of H. brasiliensis on this island is scarce. The diversity of AMF species in the rhizosphere of rubber tree plantations in Hainan was investigated in this study. A total of 72… More >

  • Open Access

    ARTICLE

    SEM-Based Research on Influence Factors of Energy Conservation in Operation and Maintenance of Construction Project

    Liang Zhao1,2,3, Wenshun Wang2, Wei Zhang1

    Intelligent Automation & Soft Computing, Vol.25, No.4, pp. 705-713, 2019, DOI:10.31209/2019.100000074

    Abstract The energy consumption in operation and maintenance stage of construction project accounts for 80% of the whole project life cycle and therefore research on influence factors of energy consumption in project operation and maintenance stage is of great practical significance. Based on data of 260 valid questionnaires in Jiangsu area, structural equation model is adopted in the Thesis for empirical research on influence factors in operation and maintenance stage. Based on theoretical analysis and factor analysis, the conceptual model and research hypothesis for influence factors of energy consumption in operation and maintenance stage are proposed… More >

  • Open Access

    ARTICLE

    Analysis and Test on Influence Factors of Dew Drop Condensation in Dew Point Hygrometer

    Shijun Zhao1,2, Xiaoying Chen1,3,*, Xiaolei Wang1, Wenming Ji1, Zhonghua Dai4

    Journal of Quantum Computing, Vol.1, No.1, pp. 29-39, 2019, DOI:10.32604/jqc.2019.06112

    Abstract The condensation process of dew droplets is influenced by many factors. A dew point condensation image observation system was built to improve the response speed of dew point detector under different measuring conditions. The basic mechanism of dew drop condensation growth was studied and the influence of various factors on the dew drop growth rate were analyzed. And the accuracy of the influence results was verified based on the improved Hough transform circle detection. The results show that the growth rate of dew droplets is affected by ambient temperature, dew point temperature, mirror temperature and More >

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