Home / Advanced Search

  • Title/Keywords

  • Author/Affliations

  • Journal

  • Article Type

  • Start Year

  • End Year

Update SearchingClear
  • Articles
  • Online
Search Results (73)
  • Open Access

    ARTICLE

    Suppression of Dry-Coupled Rubber Layer Interference in Ultrasonic Thickness Measurement: A Comparative Study of Empirical Mode Decomposition Variants

    Weichen Wang1, Shaofeng Wang1, Wenjing Liu1,*, Luncai Zhou2, Erqing Zhang1, Ting Gao3, Grigory Petrishin4

    Structural Durability & Health Monitoring, Vol.20, No.1, 2026, DOI:10.32604/sdhm.2025.071278 - 08 January 2026

    Abstract In dry-coupled ultrasonic thickness measurement, thick rubber layers introduce high-amplitude parasitic echoes that obscure defect signals and degrade thickness accuracy. Existing methods struggle to resolve overlap-ping echoes under variable coupling conditions and non-stationary noise. This study proposes a novel dual-criterion framework integrating energy contribution and statistical impulsivity metrics to isolate specimen re-flections from coupling-layer interference. By decomposing A-scan signals into Intrinsic Mode Functions (IMFs), the framework employs energy contribution thresholds (>85%) and kurtosis indices (>3) to autonomously select IMFs containing valid specimen echoes. Hybrid time-frequency thresholding further suppresses interference through amplitude filtering and spectral focusing. More >

  • Open Access

    ARTICLE

    Investigation of the Influence of Variations in Thickness and Concentration on the Optoelectronic Characteristics of p-CuI/n-InSe Photodetector

    Naeemah A. Aswad, Ayed N. Saleh*

    Chalcogenide Letters, Vol.22, No.12, pp. 1019-1029, 2025, DOI:10.15251/CL.2025.2212.1019 - 06 December 2025

    Abstract The SCAPS-1D software was used to simulate a p–CuI/n–InSe photodetector at 300 K with AM1.5G light. The simulation results showed that, with a quantum efficiency of 97.6% at 800 nm and a responsivity of 0.67 A/W, the ideal absorber layer thickness of 0.8 µm produced the highest overall performance. The specific detectivity was enhanced to 2.5 × 1015 cm·Hz1/2 ·W−3 and the dark current was decreased by increasing the InSe carrier concentration from 1 × 1015 cm−3 to 3 × 1015 cm−3 . These findings show that the CuI/InSe heterojunction’s broadband response, strong responsivity, and low dark current make More >

  • Open Access

    ARTICLE

    Modeling and optimization of a CZT(S,Se)-based tandem solar cell

    B. Yassine, B. Tahar*, G. Fathi, B. Meriem, B. Ibtissem

    Chalcogenide Letters, Vol.22, No.7, pp. 637-648, 2025, DOI:10.15251/CL.2025.227.637 - 17 December 2025

    Abstract In this paper, we designed a two-junction (tandem) solar cell model (tandem solar cell), consisting of an top and bottom subcell with absorber layers of Cu2SnZnS4 (CZTS) and Cu2SnZnSe4 (CZTSe) materials, respectively, for each subcell with a ZnS buffer layer and a ZnO window layer. This model was validated using the SCAPS-1D numerical simulation program. We also optimized the performance of the tandem cell as a whole using the simulation by studying the effect of the thickness of the absorber layer of the top subcell and the thickness of the absorber layer of the bottom subcell More >

  • Open Access

    PROCEEDINGS

    Experimental Study on the Lubrication Enhancement of Slider-on-Disc Contact by Stearic Acid Adsorption under Limited Lubricant Supply

    Yusheng Jian, Xiujiang Shi*, Xiaoxiao Li, Zehong Cai, Bailing Guan, Xiqun Lu

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.33, No.3, pp. 1-1, 2025, DOI:10.32604/icces.2025.011085

    Abstract The optimization of the lubricant supply quantity contributes to minimizing energy losses and wastage. Stearic acid is commonly used for boundary lubrication as an organic friction modifier. To enhance the performance of hydrodynamic bearings running with limited lubricant supply (LLS), under conditions of limited oil supply, the effect of stearic acid oiliness additive was studied on the relationship between oil film thickness of PAO10 (polyα-olefin) and inclination angle of the slider with an optical test rig for measuring the film lubrication in the slider-on-disc contact. The results showed that the film thickness presented an overall… More >

  • Open Access

    PROCEEDINGS

    A Systematic Analysis of Fatigue Life and Comprehensive Performance of Flexible Wearable Thermoelectric Devices Subjected to Thermo-Mechanical Coupling

    Shifa Fan1,*, Yuanwen Gao2,3, Zhiqiang Li1

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.33, No.2, pp. 1-2, 2025, DOI:10.32604/icces.2025.010668

    Abstract In recent years, wearable technology has burst onto the scene as a game-changer, completely transforming multiple facets of our daily lives—from keeping tabs on our health to facilitating communication for staying connected. It has found its way into diverse fields such as healthcare, education, the military, engineering, and sports. However, a major challenge hindering the popularization of wearable devices is the need for a reliable power source. Conventional batteries, though widely used, have limitations, including the need for frequent recharging or replacement, which hinder the seamless integration of wearable technology into everyday life [1]. To… More >

  • Open Access

    ARTICLE

    Topology Optimization for Variable Thickness Shell-Infill Composites Based on Stress Analysis Preprocessing

    Xuefei Yang, Ying Zhou, Liang Gao, Hao Li*

    CMC-Computers, Materials & Continua, Vol.85, No.1, pp. 613-635, 2025, DOI:10.32604/cmc.2025.068756 - 29 August 2025

    Abstract Inspired by natural biomimetic structures exemplified by femoral bones, the shell-infill composite design has emerged as a research focus in structural optimization. However, existing studies predominantly focus on uniform-thickness shell designs and lack robust methodologies for generating high-resolution porous infill configurations. To address these challenges, a novel topology optimization framework for full-scale shell-filled composite structures is developed in this paper. First, a physics-driven, non-uniform partial differential equation (PDE) filter is developed, enabling precise control of variable-thickness shells by establishing explicit mapping relationships between shell thickness and filter radii. Second, this study addresses the convergence inefficiency… More >

  • Open Access

    ARTICLE

    Comparing functional outcomes of glansectomy with or without glans reconstruction

    Mihály Murányi1,*, András Domoszlai1, Attila Csaba Nagy2, Tibor Flaskó1

    Canadian Journal of Urology, Vol.32, No.2, pp. 119-127, 2025, DOI:10.32604/cju.2025.063821 - 30 April 2025

    Abstract Introduction: We aimed to compare the oncological and functional outcomes of glansectomy and split-thickness skin graft reconstruction (GR) with those of glansectomy alone (GA) and penile amputation (PA). Materials and Methods: This retrospective study included patients with penile carcinoma or penile intraepithelial neoplasia diagnosed between 2017 and 2022. Surgical outcomes, complications, and oncological outcomes were assessed through a chart review, and functional outcomes were assessed using a questionnaire administered to patients who underwent GR (group A), GA (group B), or PA (group C). Results: Six, eight, and seven patients were enrolled in groups A, B, and… More >

  • Open Access

    ARTICLE

    A Dynamic Prediction Approach for Wire Icing Thickness under Extreme Weather Conditions Based on WGAN-GP-RTabNet

    Mingguan Zhao1,2,*, Xinsheng Dong1,2, Yang Yang1,2, Meng Li1,2, Hongxia Wang1,2, Shuyang Ma1,2, Rui Zhu3, Xiaojing Zhu3

    CMES-Computer Modeling in Engineering & Sciences, Vol.142, No.2, pp. 2091-2109, 2025, DOI:10.32604/cmes.2025.059169 - 27 January 2025

    Abstract Ice cover on transmission lines is a significant issue that affects the safe operation of the power system. Accurate calculation of the thickness of wire icing can effectively prevent economic losses caused by ice disasters and reduce the impact of power outages on residents. However, under extreme weather conditions, strong instantaneous wind can cause tension sensors to fail, resulting in significant errors in the calculation of icing thickness in traditional mechanics-based models. In this paper, we propose a dynamic prediction model of wire icing thickness that can adapt to extreme weather environments. The model expands… More >

  • Open Access

    ARTICLE

    Enhancing Solar Photovoltaic Efficiency: A Computational Fluid Dynamics Analysis

    Rahool Rai1,2,3,*, Fareed Hussain Mangi4, Kashif Ahmed2, Sudhakar Kumaramsay1,5,6,*

    Energy Engineering, Vol.122, No.1, pp. 153-166, 2025, DOI:10.32604/ee.2024.051789 - 27 December 2024

    Abstract The growing need for sustainable energy solutions, driven by rising energy shortages, environmental concerns, and the depletion of conventional energy sources, has led to a significant focus on renewable energy. Solar energy, among the various renewable sources, is particularly appealing due to its abundant availability. However, the efficiency of commercial solar photovoltaic (PV) modules is hindered by several factors, notably their conversion efficiency, which averages around 19%. This efficiency can further decline to 10%–16% due to temperature increases during peak sunlight hours. This study investigates the cooling of PV modules by applying water to their… More >

  • Open Access

    ARTICLE

    Effect of defect density, bandgap profile, material composition, thickness, and doping density of the absorber layer on the performance of thin film solar cell based on antimony selenosulfide Sb2(Se1-ySy)3

    A. Benmir*, M. L. Louazene

    Chalcogenide Letters, Vol.21, No.4, pp. 305-317, 2024, DOI:10.15251/CL.2024.214.305

    Abstract This article deals with the optimization by simulation of a graded bandgap thin film solar cell based on antimony selenosulfide Sb2(Se1-ySy)3 having the following structure: Front contact/n-ZnO/i-ZnO/p-SbSSe/n-CdS/Back contact. The simulation is performed using SCAPS-1D software. The optimization process includes optimizing the bulk defect density, bandgap profile, material composition, thickness, and doping density of the absorber layer of thin film solar cell based on antimony selenosulfide Sb2(Se1-ySy)3. We found that for a bulk defect density below 1013 cm-3 , using an absorber material with a graded bandgap profile leads to an efficiency of 25.33 % (For a bulk… More >

Displaying 1-10 on page 1 of 73. Per Page