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  • Open Access

    ARTICLE

    Unbuckling: an answer to address cuff-related challenges in urethral instrumentation with an artificial urinary sphincter

    Hasan Jhaveri*, Mariela Martinez-Rivera, Brent Nose, Jordan Foreman, Aaron C. Lentz

    Canadian Journal of Urology, Vol.32, No.6, pp. 597-603, 2025, DOI:10.32604/cju.2025.068095 - 30 December 2025

    Abstract Objectives: There is limited in vivo data on the maximum safe instrument size that can be passed through an artificial urinary sphincter (AUS) cuff. While 21 French instruments are generally safe with the commonly used 4.5 cm cuff, larger instruments or smaller cuffs may require unbuckling to avoid urethral erosion. This study aimed to identify if artificial urinary sphincter cuff ‘unbuckling’ affects device longevity and risk of erosion. Methods: A retrospective study of patients at a quaternary health system who underwent unbuckling was conducted. Using the Epic Clarity database and Duke Enterprise Data Unified Content Explorer… More >

  • Open Access

    ARTICLE

    Computational Modeling to Predict Conservative Treatment Outcome for Patients with Plaque Erosion: An OCT-Based Patient-Specific FSI Modeling Study

    Yanwen Zhu1,#, Chen Zhao2,#, Yishuo Xu2, Zheyang Wu3, Akiko Maehara4, Liang Wang1, Dirui Zhang2, Ming Zeng2, Rui Lv5, Xiaoya Guo6, Mengde Huang1, Minglong Chen7, Gary S. Mintz4, Dalin Tang1,3,*, Haibo Jia2, Bo Yu2,*

    CMES-Computer Modeling in Engineering & Sciences, Vol.144, No.2, pp. 1249-1270, 2025, DOI:10.32604/cmes.2025.067039 - 31 August 2025

    Abstract Image-based computational models have been used for vulnerable plaque progression and rupture predictions, and good results have been reported. However, mechanisms and predictions for plaque erosion are under-investigated. Patient-specific fluid-structure interaction (FSI) models based on optical coherence tomography (OCT) follow-up data from patients with plaque erosion and who received conservative antithrombotic treatment (using medication, no stenting) to identify risk factors that could be used to predict the treatment outcome. OCT and angiography data were obtained from 10 patients who received conservative antithrombotic treatment. Five participants had worse outcomes (WOG, stenosis severity ≥ 70% at one-year… More > Graphic Abstract

    Computational Modeling to Predict Conservative Treatment Outcome for Patients with Plaque Erosion: An OCT-Based Patient-Specific FSI Modeling Study

  • 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

    ARTICLE

    Separation and Transport of Sediment Particles Due to the Erosion of Sand-Covered Slopes

    Shanshan Tang1,2,*, Zhanbin Li3,4, Xubin Zhu1,2, Peng Li3, Zhaoyang Feng1,2, Guoliang Yang1,2, Huake Chang1,2, Zefeng Che1,2

    FDMP-Fluid Dynamics & Materials Processing, Vol.21, No.4, pp. 819-831, 2025, DOI:10.32604/fdmp.2025.057605 - 06 May 2025

    Abstract The particle size distribution plays a crucial role in the transportation and deposition of eroded sediments. Gaining insights into the related sorting mechanism can significantly enhance our understanding of such processes. In this study, sand-covered slopes were examined. A controlled indoor rainfall simulation was conducted on loess slopes with a 12° incline and a rainfall intensity of 1.5 mm/min. These slopes were then covered with sand layers of varying thicknesses—0.5, 1.0, and 1.5 cm—to observe their effects. The findings have revealed that as the thickness of the sand cover increases, the content of sediment particles… More >

  • Open Access

    ARTICLE

    Erosion Analysis of Static Components in Slurry Pumps Based on Reverse Modeling

    Zhengjing Shen1,2,*, Fanqiang Kong1, Yu Liu1, Jilai Zeng1, Wengang Yang1, Jiangbo Wu1,2

    FDMP-Fluid Dynamics & Materials Processing, Vol.21, No.3, pp. 589-603, 2025, DOI:10.32604/fdmp.2024.058727 - 01 April 2025

    Abstract Erosion in slurry pumps presents a persistent challenge in industrial applications. This study examines the erosion of the static components of a 150ZJ-C42 centrifugal slurry pump, currently in operation at a beneficiation plant, under varying particle conditions. Utilizing high-precision three-dimensional reverse engineering, the pump’s flow passage geometry was reconstructed to facilitate detailed erosion analysis. Focusing on the front and rear baffles of the pump chamber, as well as the volute, erosion patterns were analyzed for different particle volume concentrations and sizes. The results reveal that the highest erosion damage consistently occurs near the volute tongue,… More > Graphic Abstract

    Erosion Analysis of Static Components in Slurry Pumps Based on Reverse Modeling

  • Open Access

    ARTICLE

    Effect of Liquid Temperature on Surface and Mechanical Characteristics of Al-Mg Alloy Treated with a Cavitating Waterjet

    Can Kang1,*, Shifeng Yan1, Haixia Liu2, Jie Chen2, Kejin Ding3

    FDMP-Fluid Dynamics & Materials Processing, Vol.20, No.11, pp. 2431-2442, 2024, DOI:10.32604/fdmp.2024.055688 - 28 October 2024

    Abstract The presented study aims to reveal the effect of liquid temperature on cavitation-induced erosion of an Al-Mg alloy. An experimental work was conducted using a submerged cavitating waterjet to impact the specimen surface. For a certain cavitation number and a given standoff distance, different liquid temperatures were considered. Accordingly, a comprehensive comparison was implemented by inspecting the mass loss and surface morphology of the tested specimens. The results show that the cumulative mass loss increases continuously with the liquid temperature. A cavitation zone with an irregular profile becomes evident as the cavitation treatment proceeds. Increasing More > Graphic Abstract

    Effect of Liquid Temperature on Surface and Mechanical Characteristics of Al-Mg Alloy Treated with a Cavitating Waterjet

  • Open Access

    ARTICLE

    Research on Leading Edge Erosion and Aerodynamic Characteristics of Wind Turbine Blade Airfoil

    Xin Guan*, Yuqi Xie, Shuaijie Wang, Mingyang Li, Shiwei Wu

    FDMP-Fluid Dynamics & Materials Processing, Vol.20, No.9, pp. 2045-2058, 2024, DOI:10.32604/fdmp.2024.049671 - 23 August 2024

    Abstract The effects of the erosion present on the leading edge of a wind turbine airfoil (DU 96-W-180) on its aerodynamic performances have been investigated numerically in the framework of a SST k–ω turbulence model based on the Reynolds Averaged Navier-Stokes equations (RANS). The results indicate that when sand-induced holes and small pits are involved as leading edge wear features, they have a minimal influence on the lift and drag coefficients of the airfoil. However, if delamination occurs in the same airfoil region, it significantly impacts the lift and resistance characteristics of the airfoil. Specifically, as More >

  • Open Access

    REVIEW

    Multi-Aspect Critical Assessment of Applying Digital Elevation Models in Environmental Hazard Mapping

    Maan Habib1,*, Ahed Habib2, Mohammad Abboud3

    Revue Internationale de Géomatique, Vol.33, pp. 247-271, 2024, DOI:10.32604/rig.2024.053857 - 07 August 2024

    Abstract Digital elevation models (DEMs) are essential tools in environmental science, particularly for hazard assessments and landscape analyses. However, their application across multiple environmental hazards simultaneously remains in need for a multi-aspect critical assessment to promote their effectiveness in comprehensive risk management. This paper aims to review and critically assess the application of DEMs in mapping and managing specific environmental hazards, namely floods, landslides, and coastal erosion. In this regard, it seeks to promote their utility of hazard maps as key tools in disaster risk reduction and environmental planning by employing high-resolution DEMs integrated with advanced More >

  • Open Access

    ARTICLE

    A Numerical Investigation of the Effect of Boundary Conditions on Acoustic Pressure Distribution in a Sonochemical Reactor Chamber

    Ivan Sboev1,*, Tatyana Lyubimova2,3, Konstantin Rybkin3, Michael Kuchinskiy2,3

    FDMP-Fluid Dynamics & Materials Processing, Vol.20, No.6, pp. 1425-1439, 2024, DOI:10.32604/fdmp.2024.051341 - 27 June 2024

    Abstract The intensification of physicochemical processes in the sonochemical reactor chamber is widely used in problems of synthesis, extraction and separation. One of the most important mechanisms at play in such processes is the acoustic cavitation due to the non-uniform distribution of acoustic pressure in the chamber. Cavitation has a strong impact on the surface degradation mechanisms. In this work, a numerical calculation of the acoustic pressure distribution inside the reactor chamber was performed using COMSOL Multiphysics. The numerical results have revealed the dependence of the structure of the acoustic pressure field on the boundary conditions More > Graphic Abstract

    A Numerical Investigation of the Effect of Boundary Conditions on Acoustic Pressure Distribution in a Sonochemical Reactor Chamber

  • Open Access

    ARTICLE

    Coupling Effect of Cryogenic Freeze-Thaw Cycles and Chloride Ion Erosion Effect in Pre-Cracked Reinforced Concrete

    Yang Li, Sibo Jiang*, Ruixin Lan

    Structural Durability & Health Monitoring, Vol.18, No.3, pp. 255-276, 2024, DOI:10.32604/sdhm.2024.047776 - 15 May 2024

    Abstract Chloride (Cl) ion erosion effects can seriously impact the safety and service life of marine liquefied natural gas (LNG) storage tanks and other polar offshore structures. This study investigates the impact of different low-temperature cycles (20°C, –80°C, and −160°C) and concrete specimen crack widths (0, 0.3, and 0.6 mm) on the Cl ion diffusion performance through rapid erosion tests conducted on pre-cracked concrete. The results show that the minimum temperature and crack width of freeze-thaw cycles enhance the erosive effect of chloride ions. The Cl ion concentration and growth rate increased with the increasing crack More > Graphic Abstract

    Coupling Effect of Cryogenic Freeze-Thaw Cycles and Chloride Ion Erosion Effect in Pre-Cracked Reinforced Concrete

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