Design and Realization of Jiujiang Urban Smart Water Platform Based on Digital Twin Technology by CHEN Guobiao

“…Nowadays,the digital technology based on digital twin is becoming increasingly mature.To make the water environment treatment of the Yangtze River stable and efficient for a long time,Shanghai Investigation,Design & Research Institute (SIDRI) adopted the advanced concept of smart water in the water environment treatment of the central urban area in Jiujiang,the first pilot city of the Yangtze River Protection,and developed a smart water platform with the digital twin as a core technology.With the digital twin technology,SIDRI built the data base of the city and applied the smart water platform combined with 5G Internet of things,hydraulic modeling and cloud computing technology.Integrating the data of river water regime,water quality,regional rain regime,pump station operation,real-time monitoring of pipe network and other water management content,SIDRI created a spatial-temporal model of the water environment in Jiujiang central urban area with the platform,which improves the efficiency of comprehensive treatment and integrated operation of “plant-network-river-lake-(bank).” …”
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Conceptual Model for Simulating the Adjustments of Bankfull Characteristics in the Lower Yellow River, China by Yuanjian Wang, Xudong Fu, Guangqian Wang

“…The relationship between changing rates in bankfull width and depth, derived from quasiuniversal hydraulic geometries, was used as a closure for the hydrodynamic equations. …”
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Log-Cubic Method for Generation of Soil Particle Size Distribution Curve by Songhao Shang

“…This method and the generated PSD curve can be used in the conversion of different soil texture schemes, assessment of grading pattern, and estimation of soil hydraulic parameters and erodibility factor.…”
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Influence of Particle Size Distribution on the Critical State of Rockfill by Gui Yang, Yang Jiang, Sanjay Nimbalkar, Yifei Sun, Nenghui Li

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Risque inondation dans le Grand Paris : la résilience est-elle un concept opératoire ? by Alexandre Brun, Frédéric Gache

“…This is why the concept of urban flood resilience appears as a new alternative for local political management of flood risks, yet very focused on hydraulic protection against floods (dams, dikes, etc.). …”
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Study on Modification Effects of Fish Passage Facilities in Angu Hydropower Station in Dadu River by ZHOU Wu, ZHANG Qi, SHI Jiayue, TANG Youmin, SUN Junjian

“…Due to the changed operating water level after the building of Angu Hydropower Station in Dadu River,the gate floors of the vertical slot fishway and nature-like passage are chiseled to lower the elevation and ensure water flow conditions.In order to understand the hydraulic condition of the modified fishway and the effect of fish passing,the water level and flow velocity in the fish passage facility are measured.The features of fishes in ecological river channels and fish passage facilities are investigated through net capturing.In addition,the operation status of fish passage facilities and the changes in aquatic ecological investigation results before and after modification are analyzed.The following main conclusions are drawn.After modification,the operation guarantee rate of fishway and passage is greatly improved,and the hydrodynamic conditions are close to the design effect; there are more fish species within the survey area after modification,and the species number of some migratory fishes has increased remarkably; there are obvious differences in fish species between vertical slot fishway and nature-like passage of ecological river sluice in Angu Hydropower Station,and the two channels are suitable for different fish species,showing a complementary effect.…”
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Experimental Study on the Reliability of an Active Unloading System for Strengthening of Reinforced Concrete Columns by Yongquan Wang, Tianfu Li, Kaifa Dong, Zhengxing Guo, Jing Fu

“…The vertical load was applied by a hydraulic jack mounted on top of the RC column, and the real-time monitoring data analysis was adopted to verify the feasibility of the active unloading plan and the reliability of the force transmission. …”
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KAJIAN PEMBANGUNAN SISTEM DRAINASE BERWAWASAN LINGKUNGAN DI KAWASAN PERUMAHAN by NURHAPNI, HANI BURHANUDIN

“…By obtaining subsequent runoff discharge channel hydraulic analysis was performed to evaluate the use of construction of water channels that qualify are eligible to do. …”
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Mold Strength Analysis of Press Machine Composite Brake Using FEM Method on Train Brakes by Andhika Muhammad Kasyafa, Muhamad Juan Raffindo, Nuha Desi Anggraeni

“…Press machine is a mechanism that works by compressing objects. It is powered by hydraulic machines, electric motors, or human power. …”
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Repetitive Identification of Structural Systems Using a Nonlinear Model Parameter Refinement Approach by Jeng-Wen Lin, Hung-Jen Chen

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Optimization of Temperature-Control Measures for Concrete Structures: A Case Study of the Sluice Project by Yaoying Huang

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Laminar Motion of the Incompressible Fluids in Self-Acting Thrust Bearings with Spiral Grooves by Cornel Velescu, Nicolae Calin Popa

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Analysis on Changes in Water Level-Flow of the Pearl River Basin in Recent Years and Its Causes by TANG Jiaqi, DUAN Kai, HAO Lu

“…Aiming at the impact of climate change and rapid urbanization on the hydrological situation in the Pearl River Basin in recent years,this paper analyzes the evolution trend and variation characteristics of the water level,flow and water level-flow of 16 major hydrological stations in the Pearl River Basin from 1997 to 2013,and discusses the causes of the evolution of water level and flow in each sub-basin based on the meteorological,hydraulic engineering,and water and sediment data in the historical period.The results show that:①The average annual flow of most stations in the Pearl River Basin didn't change significantly,but the Jiangbianjie,Chongwei and Liuzhou stations in the Xijiang River Basin showed a significant reduction trend;②The flow of most stations in the flood season decreased,while that in the dry season increased.The different precipitation during the dry/flood season was the important factors leading to the change of flow in the Pearl River Basin;③The water level of most stations in the Xijiang River Basin showed a significant upward trend,which was caused by the aggravating water and soil loss.While under the influence of reservoir operation and sand mining activities,the Beijiang River Basin and the lower reaches of the Dongjiang River Basin showed a trend of riverbed down-cutting and water level lowering.…”
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Dynamic Analysis on the Transmission Gear System of the Cutter Head Main Drive of Large Shield Machines by Deng Shuzhi, Xu Lixin, Du Zhengzhu, Long Bin, Su Cuixia

“…The amplitude of gear vibration and its meshing force are obviously affected by the input torque fluctuation of hydraulic motors.…”
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Effect of Varied Cashew Nut Ash Reinforcement in Aluminum Matrix Composite by Yallamati Abshalomu, Y. Jyothi, K. Balamurugan, Rabin Selvaraj

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CONSIDERACIONES ACERCA DE LA CRECIDA HISTÓRICA DE JULIO DEL 2006 Y SUS CONSECUENCIAS EN EL BAJO NEUQUÉN by Maria Elena Chiementon, Verónica G. Cortese

“…In order to analyze the events of 2006, we previously performed a brief historical and anecdotal overview of Neuquén more important floods and the means used to control them, consisting in construction of hydraulic engineering works. These were very important in the development of fruit production in the valley by allowing irrigation of lands in production. …”
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RESEARCH ON THE ENERGY ABSORPTION CHARACTERISTICS OF EXPANSION TUBE ENERGY ABSORBING ELEMENTS FOR RAIL VEHICLES by HE ShiZhong, HUANG Ke

“…In this paper, the expansion tube type energy absorbing element was taken as the research object, and 9 samples were tested by automatic electro-hydraulic servo press and large drop hammer impact tester. …”
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COMPARATIVE STUDY ON FATIGUE PROPERTIES OF WHEEL MATERIALS CONTAINING INCLUSIONS AND SHRINKAGE DEFECTS (MT) by WANG ZhaoHan, XU Tian, ZENG DongFang, LU LianTao

“…Through the fatigue test carried out on Shimadzu electro-hydraulic servo fatigue testing machine, the fatigue life of samples with defects was obtained.After the test, the shape, size and chemical composition of defects were analyzed. …”
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A Numerical Study of Railway Ballast Subjected to Direct Shearing Using the Discrete Element Method by Hongyi Zhao, Jing Chen

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Properties of a Laminated Wood Composite Produced with Thermomechanically Treated Veneers by Larissa M. Arruda, Cláudio H. S. Del Menezzi

“…Veneers from Amescla (Trattinnickia burseraefolia) wood were treated in a hydraulic press with electric resistance heating. Two temperature levels were applied, 140°C and 180°C, for 1 and 2 minutes with 2.7 N/mm2 of pressure. …”
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