Dutasteride nanoemulsion preparation to inhibit 5‐alpha‐hair follicle reductase enzymes in the hair follicle; an ex vivo study by Mehri Memar Bashi Aval, Elham Hoveizi, Reza Mombeiny, Mostafa Kazemi, Saeedeh Saeedi, Shima Tavakol

“…Results showed the lower ratio of S/Co (higher ethanol concentration) increased the hydrodynamic nanocarriers' particle size due to thermodynamic disturbance and Ostwald ripening. …”
Get full text

Impact of Hydrogeological Characteristics on the Development of Underground Space Resources in Valley Cities by Lizhong Zhang, Linde Liang, Jixiang Zhu, Tao Gan, Yamin Yang, Dun Wang

“…The study reveals that the hydrodynamic effect of groundwater in the study area is substantial and has a significant physical scouring effect on underground structures. …”
Get full text

Using Simplified Models to Assist Fault Detection and Diagnosis in Large Hydrogenerators by Geraldo Carvalho Brito Junior, Roberto Dalledone Machado, Anselmo Chaves Neto

“…A first model estimates the influence of changes in bearing operating conditions in the bearing stiffnesses, considering only the hydrodynamic effects of an isoviscous oil film with linear thickness distribution. …”
Get full text

Numerical Simulation of the Thermal-Hydro-Mechanical Characteristics of High-Speed Railway Roadbeds in Seasonally Frozen Regions by Yuzhi Zhang, Jianghui Bei, Pei Li, Xiaojie Liang

“…Based on the classical hydrodynamic model and fundamental thermoelasticity theories, we propose a thermo-hydro coupled model, based on the soil-water characteristic curve and solid-liquid ratio as the relation equations, with the effects of the ice-water phase change and water migration due to temperature change considered. …”
Get full text

Development Status of Dynamic Sealing Technology and Discussion on Advanced Sealing Technologies by Yan Wang, Shuoshuo Niu, Jiahao Zhang, Cong Feng, Yutong Wang, Doudou Shen, Decai Li, Tong Li, Pengcheng Cao, Yufan Zhang

“…From the perspective of obstruction mechanisms, this study reinterprets the concept of sealing science by redefining the classification of sealing types based on solid-phase medium obstruction, fluid hydrostatic and hydrodynamic obstruction, fluid pumping obstruction, fluid energy dissipation obstruction, and fluid impact obstruction. …”
Get full text

Stability Analysis of Partially Submerged Landslide with the Consideration of the Relationship between Porewater Pressure and Seepage Force by Yang Wang, Le Yu, Tianci Yin, Lanbing Yu, Zhitao Huo

“…For partially submerged landslides, hydrostatic and hydrodynamic pressures, related to water level fluctuation and rainfall, are usually expressed in the form of porewater pressure, seepage force, and buoyancy. …”
Get full text

Impact of moving target on underwater positioning by using state measurement by Tippireddy Srinivasa Reddy, Rajeev Arya

“…The localization of moving targets in an underwater acoustic wireless sensor network (UAWSN) is inaccurate due to the various underwater forces (viscous, hydrodynamic forces, perturbation of underwater). The false measurements in the sensor network cause position errors and velocity errors which disrupt the localization of the moving target. …”
Get full text

Numerical Simulation Study on Influence of Riverbed Changes on Saltwater Intrusion in Northwest River Delta by JIN Gaoyang, ZHU Sanhua, CAO Yihao

“…To study the changes in the riverbed of the Northwest River Delta and their relationship with saltwater intrusion,this paper builds a one-dimensional unsteady flow chlorine concentration mathematical model based on the collection and organization of previous research results,hydrological,meteorological,and river terrain data.The hydrodynamic and chlorine concentration verification results meet the relevant regulatory requirements and can be applied to calculate and analyze the impact of riverbed changes on saltwater intrusion.The research results are as follows.① From 1999 to 2016, the riverbed of the Northwest River Delta network was in an uneven downward cutting state,and the volume of the river continued to increase,resulting in a decrease in the resistance of the estuary to rising and falling tides.The upward tracing of high saltwater masses along the estuary was simpler,and the upward tracing of salt tides became increasingly severe.② The rising tide at each Koumen station increases,and the probability of removing freshwater from the saltwater boundary decreases.Under different inflow conditions in Sixianjiao,the average upward movement of the saltwater boundary at Modaomen Waterway is 3 735 m,and the average downward movement of the freshwater from Pinggang Pumping Station is 5.33%.The average upward movement of the saltwater boundary at Shawan Waterway is 2 369 m,and the average downward movement of the freshwater from Shawan No.1 Water Plant is 5.14%.These seriously affect the ecosystem and normal water intake demand in the estuarine area.The research results can provide basic support for the research and engineering design of water supply safety measures in the Northwest River Delta and estuarine areas.…”
Get full text

Risk Analysis of Sequential Dam Break of Cascade Reservoirs and Simulation of Flood Routing by YU Zibo, XIANG Yan, MENG Ying, SU Zhengyang

“…To study the risk of sequential dam break of cascade reservoirs,and to simulate and analyze the flood routing process,by constructing a Bayesian network model for the sequential dam break of double reservoirs under the action of extra standard floods and piping,and combining the dam break and flood routing simulation of Breach dam-break numerical model and two-dimensional HEC-RAS hydrodynamic model,this paper calculates the probability of dam break,evaluates the risk of sequential dam break,and simulates the flood routing process,taking Hanconggou Reservoir and Dingguoshan Reservoir as examples.The calculation results show that:Through Bayesian-based backward inference of the known dam break of Dingguoshan Reservoir,the probability of “Hancongou Reservoir dam break” increased from 3% to 87%;while through Bayesian-based backward inference of the known dam break of Hancongou Reservoir,the probability of “Hancongou Reservoir piping” increased from 16% to 87%.Under extra standard flood and piping conditions,due to the sequential dam break of the two reservoirs,the time for the flood to reach the section CS1—CS6 is 0.8~3.0 h;under the flood conditions that occurred once in 1 000 years,the Hancongou Reservoir was opened for flood discharge but the dam was not broken.Only the Dingguoshan Reservoir was over-topped with dam break,and the flood reached the section CS1—CS6 in 21.5~26.5 h.This study can provide scientific reference for reducing dam break risk,and making emergency plan and disaster prevention & mitigation plan.…”
Get full text

Heat absorption effect of magneto-natural convection flow in vertical concentric annuli with influence of radial and induced magnetic field by Muhammad Yusuf Muhammad, Muhammad Auwal Lawan, Yusuf Y. Gambo

“…Abstract This paper aims to study the natural convective magneto-hydrodynamic flow of fluid through vertical concentric annuli with iso-flux heating under the conditions of constant internal heat absorption and an induced magnetic field. …”
Get full text

Forecasting of Surface Currents via Correcting Wind Stress with Assimilation of High-Frequency Radar Data in a Three-Dimensional Model by Lei Ren, Stephen Nash, Michael Hartnett

“…This paper details work in assessing the capability of a hydrodynamic model to forecast surface currents and in applying data assimilation techniques to improve model forecasts. …”
Get full text

A Hybrid Particle Swarm Optimization-Tuning Algorithm for the Prediction of Nanoparticle Morphology from Microscopic Images by Abhishek Singh, Thaseem Thajudeen

“…Various 3-dimensional properties including hydrodynamic diameter and mobility diameter of the retrieved structures are then compared with the properties of the aggregate used to form the candidate projection image, to test the suitability of the algorithm. …”
Get full text

Impact des laisses végétales sur la dynamique des plages sableuses, Martinique, Petites Antilles by Franck Dolique, Mouncef Sédrati, Quentin Josso

“…In the first sector, the drift was completely removed by collection, while a second sector was treated by spreading the stranded debris and a third sector was left in a natural state, without any collection. Topographic and hydrodynamic measurements were carried out on the three sectors to characterize the sedimentary response of the beach according to these three methods of managing the stranded drift. …”
Get full text

Flood Control Capacity of Shenzhen River Basin during "9·7" Torrential Rainfall by ZHOU Hui, LIU Jing, GAO Shiyou, WU Yao, LU Chen

“…To evaluate whether the current flood control capacity of the Shenzhen River Basin meets design standards, a one-dimensional hydrodynamic mathematical model was employed to simulate the flood process during "9·7" torrential rainfall. …”
Get full text

Impact of permeability and fluid parameters in couple stress media on rotating eccentric spheres by Al-Hanaya Amal, El-Sapa Shreen

“…Utilizing a collocation scheme alongside a semi-analytical approach under the assumption of low Reynolds numbers, this research delves into the hydrodynamic couple force (torque) exerted by the Brinkman couple stress fluid on the interior sphere. …”
Get full text

Empirical Data-Driven Linear Model of a Swimming Robot Using the Complex Delay-Embedding DMD Technique by Mostafa Sayahkarajy, Hartmut Witte

“…We hypothesized that data-driven modeling techniques may extract models or patterns of the swimmers’ dynamics without implicitly measuring the hydrodynamic variables. This work proposes empirical kinematic control and data-driven modeling of a soft swimming robot. …”
Get full text

Estimating Macroscopic Volume Delay Functions with the Traffic Density Derived from Measured Speeds and Flows by Rafał Kucharski, Arkadiusz Drabicki

“…We employ the well-known hydrodynamic relation of fundamental diagram to derive the so-called quasi-density from measured time-mean speeds and flows. …”
Get full text

A Two-Dimensional Cell Model of Phases Transport in a Fluidized Bed Column: Development and Validation by Andrey Mitrofanov

“…Description of the hydrodynamic state of the apparatus is the starting point for predicting most technological operations in gas-solid flows. …”
Get full text

Analysis of the Impact of Sewage Outfall on the Water Quality of Coastal Waters of Macau Based on MIKE21 Model by CHANG Ze, ZHANG Qionghai, JIANG Yu, SUN Ning, HE Rui, WANG Tengfei, WU Yaju, LONG Xiaofei

“…This paper simulates the impact of the sewage outfall of the Macau Taipa Wastewater Treatment Plant on the water quality changes in the nearby Lingding Ocean by the hydrodynamic module (HD) and the transmission diffusion module (TR) of the MIKE21 model,provides the boundary conditions for the local two-dimensional tidal current model (built by MIKE21) through the one and two-dimensional integrated tidal current model of the Pearl River Estuary area,and analyzes the impact of pollutant diffusion under normal discharge and accident discharge in terms of the three evaluation factors,namely COD_Cr (chemical oxygen demand),SS (total suspended solids) and NH₃-N (Ammonia-Nitrogen),under the “2005·6” flood combination and “2001·2” low water combination as the most unfavorable hydrological conditions.The results show that the water quality of main channel can meet the Class Ⅲ standard among the Sea Water Quality Standards (GB 3097—1997).With proper preventive measure,the out-of-limit water area under accidental discharge is less than 0.2 km².This model has good adaptability to the simulation of the diffusion of pollutants into the coastal waters of Macau,so it can better simulate the impact of sewage discharge on the water quality of the sea under the action of ocean tides,and serve as a basis and research direction for the establishment of sewage outfall.…”
Get full text

Development and Validation of a Wave-Propelled Semi-submersible Unmanned Vehicle by Tian Yingyuan, Li Weijia, Wang Zhigang

“…Modelling, computational hydrodynamic and motion simulations, and functional and performance testing at sea demonstrate the feasibility and superior performance of the WPSUV compared to conventional wave gliders. …”
Get full text