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  • Open Access

    ARTICLE

    Preparation and characterization of CuAlXSn1-XS2 thin films prepared by electron beam deposition system

    A. S. Alqarnia,, S. N. Alamrib,

    Chalcogenide Letters, Vol.22, No.5, pp. 493-506, 2025, DOI:10.15251/CL.2025.225.493

    Abstract Abundant and environmentally friendly solar cells materials Cu2AlSnS4 (CATS) thin film successively prepared by electron beam deposition system. The impact of various deposition times and post-annealing at 450 °C under nitrogen gas atmosphere on the structures, morphologies, and spectroscopic characteristics of the obtained CATS films were investigated. Both deposition time variation and annealing process were found to significantly affect the crystallinity, bonding vibration, surface morphology, energy band gaps, and Urbach energy of the CATS films. EDX spectra of the films disclosed the existence of all constituents’ elements. XRD analysis of the post-annealed films verified their multiple More >

  • Open Access

    ARTICLE

    Thin-Film Solar Cell Based on Sb2(Sx,Se1−x)3 Solid Solution Films

    T. M. Razykov1, K. M. Kuchkarov1, R. T. Yuldoshov1, M. P. Pirimmatov1, R. R. Khurramov1, D. Z. Isakov1, M. A. Makhmudov1, A. Matmuratov1, J. G. Bekmirzoyev1, A. N. Olimov2

    Chalcogenide Letters, Vol.22, No.11, pp. 959-964, 2025, DOI:10.15251/CL.2025.2211.959

    Abstract This work presents the results of investigating the photovoltaic characteristics of Sb2(SxSe1−x)3 thin film solar cells manufactured on glass substrates with molybdenum coating using the chemical molecular beam deposition method. Illuminated IV and spectral response measurements on Sb2(SxSe1−x)3 alloy films show that the device with S/(S + Se) = 0.6 delivers the best performance, reaching 6.47% power-conversion efficiency with VOC = 523 mV, JSC = 27.2 mA cm−2 , and a fill factor of 46.71%. More >

  • Open Access

    ARTICLE

    An Analytical Approach for Simulating the Bending of Nanobeams in Thermal Environments Considering the Flexomagnetic Effect

    Do Van Thom1,*, Pham Van Hoan2, Nguyen Huu Phan2

    CMES-Computer Modeling in Engineering & Sciences, Vol.145, No.2, pp. 1711-1734, 2025, DOI:10.32604/cmes.2025.071187 - 26 November 2025

    Abstract This research utilizes analytical solutions to investigate the issue of nonlinear static bending in nanobeams affected by the flexomagnetic effect. The nanobeams are exposed to mechanical loads and put in a temperature environment. The equilibrium equation of the beam is formulated based on the newly developed higher-order shear deformation theory. The flexomagnetic effect is explained by the presence of the strain gradient component, which also takes into consideration the impact of small-size effects. This study has used a flexible transformation to derive the equilibrium equation for a single variable, which significantly simplifies the process of More >

  • Open Access

    PROCEEDINGS

    Vibration Analysis of Composite Periodic Beams Using Mixed Finite Elements

    Jiaqing Jiang*, Marco Amabili

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.33, No.2, pp. 1-1, 2025, DOI:10.32604/icces.2025.012283

    Abstract This paper presents a novel mixed finite element method for the free vibration analysis of composite periodic beams. The governing state-space equations are derived based on the Hamilton's principle, treating both displacements and stresses as fundamental variables. This method uses transfer relations in the transverse direction and finite element discretization in the longitudinal direction of the beam, forming a semi-analytical computational framework. Therefore, it is able to handle general composite beam structures containing both transversely layered and axially jointed materials.
    The proposed mixed finite element method ensures continuity of both displacements and stresses across material interfaces,… More >

  • Open Access

    ARTICLE

    Improving the Environmental Friendliness of Glued Structures Made of Thermal Wood by Preliminary Low-Temperature Plasma Treatment

    Ksenia Saerova*, Ruslan Safin

    Journal of Renewable Materials, Vol.13, No.9, pp. 1829-1840, 2025, DOI:10.32604/jrm.2025.02025-0076 - 22 September 2025

    Abstract This article presents research focused on developing and scientifically substantiating a technology for producing environmentally friendly glued structures from wood treated through a two-stage process. The methodology involves preliminary thermal modification followed by high-frequency low-temperature plasma treatment. Thermal modification enhances performance characteristics such as resistance to rot, lowers hygroscopicity, and increases dimensional stability. However, it can diminish the adhesive properties of wood, complicating the bonding process. To address this challenge, the study introduces high-frequency low-temperature plasma treatment, which activates the wood surface, improving wettability and adhesion while minimizing glue consumption. Experimental results indicate that plasma More >

  • Open Access

    ARTICLE

    Strengthening Efficacy of External FRP Laminates on Aged Prestressed Beams with Unbonded Strands

    Phuong Phan-Vu*, Thanh Q. Nguyen, Phuoc Trong Nguyen

    Structural Durability & Health Monitoring, Vol.19, No.5, pp. 1111-1125, 2025, DOI:10.32604/sdhm.2025.070179 - 05 September 2025

    Abstract As prestressed concrete (PC) structures age, long-term effects, e.g., creep, shrinkage, and prestress losses, compromise their structural performance. Strengthening these aged PC beams has become a crucial matter. One effective solution is to use externally bonded fiber-reinforced polymer (FRP) sheets; however, limited research has been done on aged PC beams using the FRP, especially for beams with unbonded prestressing strands (UPC beams). Therefore, this research investigates the flexural strengthening efficacy of external FRP sheets on aged UPC beams with unbonded tendons. Aging minimally affected the failure modes of UPC beams, with nonstrengthened beams showing flexural… More >

  • Open Access

    ARTICLE

    Investigation on Shear Performance of Concrete T-Beam Bridge Strengthened Using UHPC

    Zhiyong Wan1, Guozhang Luo2, Pailin Fang2, Menghui Ji2, Zhizhao Ou3, Shaohua He3,*

    Structural Durability & Health Monitoring, Vol.19, No.5, pp. 1327-1341, 2025, DOI:10.32604/sdhm.2025.065177 - 05 September 2025

    Abstract This investigation examines the shear performance of concrete T-beams reinforced with thin layers of ultra-high performance concrete (UHPC) through an approach that integrates experimental evaluation, numerical simulation, and practical project verification. The research is based on a real bridge, and in accordance with the similarity principle, three reduced-scale T-beams with varying UHPC thicknesses were fabricated and tested to examine their failure modes and shear behaviors. A finite element model was created to enhance understanding of how UHPC reinforces these structures, while also considering the effects of material strength and arrangement. In addition to the laboratory… More >

  • Open Access

    ARTICLE

    Flexural Performance of UHPC-Reinforced Concrete T-Beams: Experimental and Numerical Investigations

    Guangqing Xiao1, Xilong Chen1, Lihai Xu1, Feilong Kuang2, Shaohua He2,*

    Structural Durability & Health Monitoring, Vol.19, No.5, pp. 1167-1181, 2025, DOI:10.32604/sdhm.2025.064450 - 05 September 2025

    Abstract This study investigates the flexural performance of ultra-high performance concrete (UHPC) in reinforced concrete T-beams, focusing on the effects of interfacial treatments. Three concrete T-beam specimens were fabricated and tested: a control beam (RC-T), a UHPC-reinforced beam with a chiseled interface (UN-C-50F), and a UHPC-reinforced beam featuring both a chiseled interface and anchored steel rebars (UN-CS-50F). The test results indicated that both chiseling and the incorporation of anchored rebars effectively created a synergistic combination between the concrete T-beam and the UHPC reinforcement layer, with the UN-CS-50F exhibiting the highest flexural resistance. The cracking load and… More >

  • Open Access

    ARTICLE

    Simple prostatectomy followed by radiation therapy for prostate cancer: a novel treatment pathway for men with marked prostatomegaly and prostate cancer: a series of cases

    Tara Morgan1,*, Brian Calio1, Rafael Tua Caraccia1, Daniel Segal2, Joshua Kim3, Sarah Attia4, Neil B. Desai5, Jeffery Gahan1

    Canadian Journal of Urology, Vol.32, No.4, pp. 309-315, 2025, DOI:10.32604/cju.2025.063408 - 29 August 2025

    Abstract Background: Radical prostatectomy has long been the treatment of choice for men with clinically significant prostate cancer (PCa) in those with concurrent significant lower urinary tract symptoms (LUTS). For men who meet this description with marked prostatomegaly, we present a multi-institutional proof of concept study describing an alternative pathway of robotic simple prostatectomy (RASP) followed by external beam radiation therapy (EBRT) for the treatment of clinically significant prostate cancer. Methods: A retrospective study was performed of 17 patients with PCa who underwent RASP followed by EBRT at two institutions from 2015–2023. Demographic, peri-operative, and post-radiation… More >

  • Open Access

    ARTICLE

    Seabed Classification from Multi-Frequency Multibeam Data: A Study from Selorejo, Malang, Indonesia

    Qaisara Yusriena Yusaini1, Muhammad Abdul Hakim Muhamad1,*, Raiz Razali1,*, Rozaimi Che Hasan2, Mohd Shahmy Mohd Said1, Mohd Zainee Mohd Zainal1,2, Ikhsan Nuradi3

    Revue Internationale de Géomatique, Vol.34, pp. 535-552, 2025, DOI:10.32604/rig.2025.065284 - 06 August 2025

    Abstract Sediment mapping is a crucial component of environmental science, particularly in the marine environment, where the analysis of seabed sediments is essential for various purposes, including marine resource management, habitat preservation, and infrastructure development. Sediment refers to the solid particles that are transported and deposited in different areas. Multibeam echosounders have revolutionized the field of seabed sediment mapping by providing unparalleled resolution and accuracy in seafloor surveys. This study aimed to produce sediment maps by implementing multi-frequency, e.g., 200, 400, 550, and 700 kHz multibeam data using a machine learning algorithm, e.g., Support Vector Machine… More >

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