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  1. 461
  2. 462

    Mathematical Simulations and On-Road Experimentations of the Vibration Energy Harvesting from Mining Dump Truck Hydro-Pneumatic Suspension by Wenguang Wu, Sha Zhang, Zhiyong Zhang

    Published 2019-01-01
    “…Running on an unpaved road, the truck’s vibration is weakened by the HPS (hydro-pneumatic suspension) and transformed into thermal energy which was finally dissipated in the air. …”
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  3. 463
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    Penerapan Storytelling Sebagai Program Penguatan Regulasi Emosi Anak Usia Dini Di Tk Kota Metro by Zusy Aryanti, Siti Kurniasih, Nihwan Nihwan

    Published 2024-12-01
    “…Sumber data penelitian adalah anak kelompok B usia 5-6 tahun di TK Pertiwi Metro tahun ajaran 2023-2024. Pengumpulan data dilakukan melalui observasi, wawancara, dokumentasi foto, dan dokumentasi tertulis. …”
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  6. 466
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    A cultura do outro em Histórias de leves enganos e parecenças, de Conceição Evaristo by Nivana Ferreira da Silva

    Published 2018-01-01
    “…En ese sentido, consideramos ejemplar para nuestra reflexión la literatura de autoría negra y femenina, y analizamos el trabajo de Conceição Evaristo, a partir de su libro Histórias de leves enganos e pareenças (2016), objeto cultural emblemático para la problematización presentada.…”
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  8. 468
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    A Real-Time Timetable Rescheduling Method for Metro System Energy Optimization under Dwell-Time Disturbances by Guang Yang, Junjie Wang, Feng Zhang, Shiwen Zhang, Cheng Gong

    Published 2019-01-01
    “…RTTRM is upon the foundation of three models for metro networks: a control model, a timetable model and an energy model. …”
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  10. 470

    Presentación del libro: Derecho procesal civil general, escrito por el profesor Henry Sanabria Santos by Juan Jóse Rodríguez Guáqueta

    Published 2024-12-01
    “…Es un honor para mí escribir unas palabras sobre la obra Derecho procesal civil general, escrita por el profesor Henry Sanabria Santos y publicada por la editorial de la Universidad Externado en 2021. En este libro, el autor aborda temas fundamentales de la parte general del Código General del Proceso y del extinto Decreto 806 de 2020, ahora transformado en la Ley 2213 de 2022. …”
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  11. 471

    RESEARCH ON THE FATIGUE LIFE CALCULATION METHOD OF HYDRO-TURBINE HEAD COVER CONNECTING BOLTS BASED ON PD-STFA by LIU Yu, JIN Jian, WANG YongFei, ZHAO JunJie, YU Bo

    Published 2020-01-01
    “…Long-term alternating loads on the connecting bolts of hydro-turbine head cover,which results in fatigue damage causing many serious accidents.Therefore,it is necessary to carry out in-depth study on the calculation method of fatigue life of head cover bolts in order to improve the accuracy of fatigue life calculation.In order to solve the above problems,a method for calculating the fatigue life of Turbine head cover bolts based on combination of power density and short-time Fourier analysis(PD-STFA) is put forward,with emphasis on the influence of coupling action of loading frequency and amplitude load on the fatigue life of head cover bolts.Firstly,the position and stress of dangerous section of connecting bolt are calculated by finite element method;secondly,the average stress of contact surface of bolt head is measured by strain-based hollow pressure sensor,and then the measured average stress of contact surface of bolt head is transformed into the stress of dangerous section according to generalized Hooke’s law;finally,based on linear damage accumulation theory,the fatigue life of the head cover bolts is calculated by PD-STFA method and the traditional rain flow counting method.The calculation results show that the fatigue life of the head cover bolts is 1.966× 10~5 h based on PD-STFA method and 4.113 ×10~5 h based on traditional rain flow counting method.According to the investigation of power plant users,the calculation results based on PD-STFA method are closer to the actual service life of bolts for about 30 years,and can predict the fatigue life of the turbine head cover connecting bolts more accurately,thus providing theoretical guarantee for the safe and stable operation of the hydro-turbine.…”
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  12. 472

    Coupled Thermo-Hydro-Mechanical-Chemical Modeling of Permeability Evolution in a CO2-Circulated Geothermal Reservoir by Jing Tao, Yu Wu, Derek Elsworth, Pan Li, Yang Hao

    Published 2019-01-01
    “…However, complex thermo-hydro-mechanical-chemical (THMC) interactions may result when CO2 is injected into the geothermal reservoir. …”
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    Estrategias de enseñanza para el logro de aprendizajes significativos en estudiantes universitarios de Perú by Johanna Rosa Velarde Samaniego, Alex Sandro Landeo Quispe, Karina Elizabeth Echegaray Quintanilla

    Published 2024-02-01
    “…Introducción: El interés por abordar el problema del logro de aprendizajes significativos no solo se ha direccionado en la enseñanza básica sino al nivel superior, toda vez que en los primeros años universitarios y, en especial, con los estudios generales los estudiantes muestran problemas en el logro de aprendizajes significativos. …”
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  16. 476

    La difícil recepción de Émile Durkheim en la Universidad Nacional del Litoral (1910-1947) by Esteban Ezequiel Vila

    Published 2021-01-01
    “…El presente trabajo estudia la recepción de las ideas de Émile Durkheim en la cátedra de Sociología de la Facultad de Ciencias Jurídicas y Sociales de la Universidad del Litoral entre 1910-1947. Para ello, el texto se concentra en los libros, artículos, notas de clase, etc., de aquellos que fueron profesores de la mencionada cátedra: Gustavo Martínez Zuviría, José Oliva, José María Rosa y Francisco Ayala. …”
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  17. 477

    Experimental Research on Bending Bearing Capability of Grouted Double Mortise-Tenon Joint for Prefabricated Metro Station Structure by Xiuren Yang, Fang Lin, Meiqun Huang

    Published 2021-01-01
    “…The research results have important application value for the joint design of prefabricated metro station structures.…”
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  18. 478
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    Evaluation of hydro-chemical facies and surface water quality dynamics using multivariate statistical approaches in Southern Nigeria by E. A Ubuoh, F. U Nwogu, E. Q Ossai-Abeh, J. C Ikwuemesi, A. O Oke, J. D Umoh

    Published 2024-12-01
    “…In order to understand the water cycle, safeguard surface water resources, and preserve the human environment, this study evaluated surface water hydro-chemical facies, quality dynamics, and portability in southern Nigeria using multivariate statistical approaches by analyzing selected hydro-chemical characteristics as indicators of pollution along the river during wet and dry seasons. …”
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