Development and Application of Real-time Dynamic Flood Risk Mapping by TAN Senming, GUO Shuhui, CAO Runxiang

“…These issues include improving the layout of hydrological stations, strengthening research on rainfall forecasting models, and coupling with hydrodynamic models to enhance flood forecast accuracy and extend flood forecast periods. …”
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Distribution of Pollutants in Nandu River Estuary in Different Environments by FANG Mingyi, SHI Haoran, HAILAI Yibo, LI Haisheng, MING Rui

“…In view of the frequent tropical storm surge in Nandu River Estuary in recent years,the increasing population in Haikou City each year,severe pollution emissions,and increasing upstream water use year by year,this paper studies the pollutant distribution in Nandu River Estuary under the storm surge and reduction of upstream water inflow on the basis of the hydrodynamic-water quality model.In addition,the changes of pollutants under different environments are analyzed.The results demonstrate that pollutants are mainly distributed on the left bank of the river and are mainly in striped shape due to the topography of the river.When the upstream flow is reduced by 20%,the effect of the tidal current is more significant,and pollutants are greatly affected by convection;the pollution zone becomes narrower,and the diffusion distance is the farthest.When the downstream tidal level is raised by 0.4 m,the interaction between the upstream inflow and tidal current is obvious;the flow rate decreases,and the pollutant retention is serious.In this case,pollutants mainly diffuse to the upstream by diffusion.Therefore,the upstream water resources should be effectively regulated and used,and the water surrounding the sewage outlet should be monitored with more efforts to provide a reference for the water environment management of the estuary section of Haikou City in the future.…”
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Effects of diffraction and radiation on a submerged sphere by Matiur Rahman

“…Our attention is mainly focused on the hydrodynamic coefficients of these motions. The crux of the problem lies entirely on the determination of these coefficients which are inherently related to the determination of the motions of the submerged sphere in regular waves. …”
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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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Dynamic processes during accretion into a black hole by G. S. Bisonvatyi-kogan

“…Sources of turbulence in the accretion disc are discussed, including nonlinear hydrodynamic turbulence, convection and magnetic filed role. …”
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Investigation of motion response suppression characteristics in floating platforms equipped with novel spiral side plates by Yu Jing‐mei, Bai Chun‐long

“…The results indicate that in the frequency domain analysis, the platform with serrated helical side plates demonstrates reduced sensitivity to waves, with a particularly notable increase in added mass in the heave direction, suggesting excellent hydrodynamic performance. In the time domain analysis, improvements in the platform's surge and heave stability performances were observed, measuring 10.99% and 10.64%, respectively, in extreme conditions. …”
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Large Geomagnetically Induced Currents at Equator Caused by an Interplanetary Magnetic Cloud by B. Nilam, S. Tulasi Ram

“…The responsible physical mechanisms were examined through magneto‐hydrodynamic model simulations and found that a prompt penetration of strong westward‐overshielding electric fields and ionospheric currents at the equator play a dominant role. …”
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A study to assess the pharmacological agent potential of gold nanoparticles and their effects on human cancer cells and hospital pathogens using in vitro methods by Ayşe Baran

“…The characterisation data revealed that the Au NPs had a peak absorbance at 553.10 nm, a surface charge of −19.7 mV, an average hydrodynamic size of 78.75 nm, a monodisperse spherical shape, and were found to be stable. …”
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GEAR DESIGN THEORY AND METHOD OF NON-HERTZ CONTACT by XIA BoQian, LIU JiaJia

“…The new theory and method comprehensive considers every factors of influencing strength and lubrication of gears,and which can ensure the designed gears meet the dual requirements of strength and elastic hydrodynamic lubrication. Specific formulas of are given out and a large number of engineering examples are used to verify the new theory and method proposed in the paper,and the results show that the conformity of new design theory and method and the actual engineering examples are very well,and which can directly apply to practical engineering design to meet the requirement of engineering design. …”
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ESTIMATION OF THE CONCRETE PAVEMENT TEMPERATURE FIELDS AND THEIR GRADIENTS by M. K. Pshembaev, Ya. N. Kovalev, V. D. Akelyev

“…In addition, pulsating hydrodynamic pressures appear in the pores of moisture-laden pavement as a result of the vehicular traffic that foster material structure disruption of the surface layers leading to irreversible deformation incipiency (cracks etc.). …”
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Investigation of Nonlinear Vibrational Analysis of Circular Sector Oscillator by Using Cascade Learning by Naveed Ahmad Khan, Muhammad Sulaiman, Jamel Seidu, Fahad Sameer Alshammari

“…This paper analyzed the model of swinging oscillation of a solid circular sector arising in hydrodynamical machines, electrical engineering, heat transfer applications, and civil engineering. …”
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Cause Analysis and Control Measures of Waterlogging in Shanghai Zoo Based on MIKE 21 by ZHOU Jing, WANG Huan

“…In order to analyze the cause of waterlogging after the drainage system of Shanghai Zoo reached the standard and explore the best control measures,data analysis and field investigation were carried out,and it was preliminarily determined that the waterlogging in the zoo was related to the poor drainage of the water system and the insufficient drainage pumping station.MIKE 21 was used to build a hydrodynamic model of the water system in the zoo,and the changes in the hydrological characteristic values of the water system under the current drainage condition were simulated and studied.It is concluded that the root cause of waterlogging in the zoo is that the drainage path is blocked,and the drainage pumping station has an insufficient scale and unreasonable layout.In order to promote drainage and remove waterlogging,the water system optimization and waterlogging facility renovation plans were proposed,and the engineering effect of each plan was simulated.Through the comparison of indicators such as drainage rate,drainage time,and maximum drainage time difference in different regions,the effect of each plan in promoting drainage and removing waterlogging was determined.In view of the engineering economy,the plan of expanding culverts and moving some culverts to the river was determined as the best,and the drainage layout was adjusted to achieve the best control effect under the specific investment.…”
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Theory of neutrino fast flavor evolution. Part II. Solutions at the edge of instability by Damiano F. G. Fiorillo, Georg G. Raffelt

“…These conversions are much faster than hydrodynamical scales, suggesting that self-consistent configurations may never be strongly unstable. …”
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Are Wolf-Rayet Stars Able to Pollute the Interstellar Medium of Galaxies? Results from Integral Field Spectroscopy by Enrique Pérez-Montero, Carolina Kehrig, Jarle Brinchmann, José M. Vílchez, Daniel Kunth, Florence Durret

“…We exclude possible hydrodynamical causes, such as the metal-poor gas inflow, for this local pollution by means of the analysis of the mass-metallicity relation (MZR) and mass-nitrogen-to-oxygen relation (MNOR) for the WR galaxies catalogued in the SDSS.…”
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Failure Mechanism of Colluvial Landslide Influenced by the Water Level Change in the Three Gorges Reservoir Area by Zhaodan Cao, Jun Tang, Xiaoer Zhao, Yonggang Zhang, Bin Wang, Lichen Li, Fei Guo

“…The results indicate that the hydrodynamic pressure has an important impact on the initialization of the landslide failure. …”
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Observational Signatures of Dust Traffic Jams in Polar-aligning Circumbinary Disks by Jeremy L. Smallwood, Rebecca Nealon, Hsi-Wei Yen, Christophe Pinte, Cristiano Longarini, Hossam Aly, Min-Kai Lin

“…Misaligned circumbinary disks will produce dust traffic jams during alignment or antialignment to the binary orbital plane. We conduct a hydrodynamical simulation of an initially misaligned circumbinary disk undergoing polar alignment with multiple dust species. …”
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Non-refractive complications of refractive surgery in patients with iridocorneal endothelial syndrome by T.N. Yur'ieva, O.V. Pisarevskaya

“…Manifest changes in the anterior segment of the eye in many syndromes accompanied by the formation of glaucoma make it possible to identify hydrodynamic disorders at the earliest stages and prevent the destructive effect of increased IOP. …”
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Computational Fluid Dynamics Modelling of Microfluidic Channel for Dielectrophoretic BioMEMS Application by Wan Shi Low, Nahrizul Adib Kadri, Wan Abu Bakar bin Wan Abas

“…The design was validated by hydrodynamic flow simulation using COMSOL Multiphysics v4.2a software. …”
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On Behavioral Response of Microstructural Slip on the Development of Magnetohydrodynamic Micropolar Boundary Layer Flow by Raja Mehmood Khan, Waqas Ashraf, Muhammad Sohail, Shao-Wen Yao, Wael Al-Kouz

“…Influence of microstructural slip on the skin friction coefficient and Nusselt number along with hydrodynamic and thermal boundary layer profiles is studied and discussed. …”
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Prediction of the Wall Factor of Arbitrary Particle Settling through Various Fluid Media in a Cylindrical Tube Using Artificial Intelligence by Mingzhong Li, Guodong Zhang, Jianquan Xue, Yanchao Li, Shukai Tang

“…Considering the influence of particle shape and the rheological properties of fluid, two artificial intelligence methods (Artificial Neural Network and Support Vector Machine) were used to predict the wall factor which is widely introduced to deduce the net hydrodynamic drag force of confining boundaries on settling particles. 513 data points were culled from the experimental data of previous studies, which were divided into training set and test set. …”
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