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  • Open Access

    ARTICLE

    Lightweight YOLOM-Net for Automatic Identification and Real-Time Detection of Fatigue Driving

    Shanmeng Zhao1,2, Yaxue Peng1,*, Yaqing Wang3, Gang Li3,*, Mohammed Al-Mahbashi1

    CMC-Computers, Materials & Continua, Vol.82, No.3, pp. 4995-5017, 2025, DOI:10.32604/cmc.2025.059972 - 06 March 2025

    Abstract In recent years, the country has spent significant workforce and material resources to prevent traffic accidents, particularly those caused by fatigued driving. The current studies mainly concentrate on driver physiological signals, driving behavior, and vehicle information. However, most of the approaches are computationally intensive and inconvenient for real-time detection. Therefore, this paper designs a network that combines precision, speed and lightweight and proposes an algorithm for facial fatigue detection based on multi-feature fusion. Specifically, the face detection model takes YOLOv8 (You Only Look Once version 8) as the basic framework, and replaces its backbone network… More >

  • Open Access

    ARTICLE

    The Association between Problematic Internet Use, Resilience, and Fatigue in First-Year Medical College Students in China: A Moderated Mediation Model

    Xiumei Chen1,2, Xiaobing Lu3,*, Yufu Ning1, Lifeng Wang1, Jeffrey H. Gamble4, Xianhe Chen5, Xingyong Jiang6, I-Hua Chen7,*, Peijin Lin8

    International Journal of Mental Health Promotion, Vol.27, No.1, pp. 51-63, 2025, DOI:10.32604/ijmhp.2024.057750 - 31 January 2025

    Abstract Background: Resilience is crucial for medical college students to thrive in the highly stressful environment of medical education. However, the prevalence of problematic internet use (PIU) in this population may negatively impact their resilience. This study investigated the influence of problematic online gaming (PG) and problematic social media use (PSMU) on the resilience of medical college students in China. Methods: A sample of 5075 first-year medical college students from four Chinese universities was studied. PG served as the independent variable, resilience as the dependent variable, fatigue as the mediator, and PSMU as the moderator. Structural… More >

  • Open Access

    PROCEEDINGS

    Inductive and Deductive Scale-Bridging In Hierarchical Multiscale Models for Dislocation Pattern Formation in Metal Fatigue

    Yoshitaka Umeno1,*, Atsushi Kubo2, Emi Kawai1

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.32, No.1, pp. 1-2, 2024, DOI:10.32604/icces.2024.012708

    Abstract Fatigue fracture accounts for a substantial fraction of failure cases in industrial products, especially in metal materials. While the mechanism of fatigue crack propagation can be understood in the mechanical point of view considering the effect of microstructures and crystal orientations on crack growth, there is still much room for investigations of the mechanism of fatigue crack formation under cyclic loading. It is widely understood that the fatigue crack formation in macroscopic metal materials originates in the persistent slip band (PSB) formed as a result of self-organization of dislocation structures [1]. Nevertheless, the PSB formation… More >

  • Open Access

    ARTICLE

    The Correlation between Psychological Resilience and Professional Quality of Life in Saudi Psychiatric Nurses: A Cross-Sectional Study

    Ahmad M. Rayani*

    Psycho-Oncologie, Vol.18, No.4, pp. 271-280, 2024, DOI:10.32604/po.2024.056045 - 04 December 2024

    Abstract In recent years, significant focus has been placed on resilience, with ongoing studies aiming to identify strategies for reducing the negative effects of job stress and protecting nurses from negative psychosocial outcomes. Nevertheless, as far as this topic is concerned, no research has yet been conducted in the context of Saudi psychiatric nurses. The aim of this research, therefore, is to determine how Saudi Arabian psychiatric nurses’ professional quality of life and psychological resilience relate to one another. To this aim, a cross-sectional study has been performed in Saudi Arabia incorporating a population of 167… More >

  • Open Access

    ARTICLE

    Determination of the Relationship between Empathy and Compassion Fatigue in Pediatric Clinic Nurses

    Dilek Akıncı1, Hacer Çetin2, Serpil Yılmaz3,*

    International Journal of Mental Health Promotion, Vol.26, No.11, pp. 935-942, 2024, DOI:10.32604/ijmhp.2024.056935 - 28 November 2024

    Abstract Background: This study aimed to determine the relationship between compassion fatigue and empathic disposition and skill levels of pediatric clinic nurses. Methods: This research was carried out as a descriptive and cross-sectional study. The research was carried out with 233 nurses determined by using a stratified sampling method from 648 nurses working in two University Hospital and two City Hospital children’s clinics. Data were collected using the “Personal Information Form”, “Compassion Scale (CS)”, “Empathic Tendency Scale (ETS)” and “Empathic Skill Scale (ESS)”. Pearson Correlation test, Student’s t-test, ANOVA test, and Scheffe test were used in the… More >

  • Open Access

    ARTICLE

    Data-Driven Modeling for Wind Turbine Blade Loads Based on Deep Neural Network

    Jianyong Ao1, Yanping Li1, Shengqing Hu1, Songyu Gao2, Qi Yao2,*

    Energy Engineering, Vol.121, No.12, pp. 3825-3841, 2024, DOI:10.32604/ee.2024.055250 - 22 November 2024

    Abstract Blades are essential components of wind turbines. Reducing their fatigue loads during operation helps to extend their lifespan, but it is difficult to quickly and accurately calculate the fatigue loads of blades. To solve this problem, this paper innovatively designs a data-driven blade load modeling method based on a deep learning framework through mechanism analysis, feature selection, and model construction. In the mechanism analysis part, the generation mechanism of blade loads and the load theoretical calculation method based on material damage theory are analyzed, and four measurable operating state parameters related to blade loads are… More >

  • Open Access

    PROCEEDINGS

    Numerical Modeling for Crack Propagation Based on a Multifunctional Super Singular Element

    Xuecheng Ping1,2,*, Congman Wang1,2, Xingxing Wang1,2

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.30, No.4, pp. 1-1, 2024, DOI:10.32604/icces.2024.011724

    Abstract The traditional finite element method (FEM) often requires a large number of refined meshes to analyze the mechanical behavior of geometric discontinuities, its computational efficiency and convergence speed are affected. A FEM for crack propagation based on the combination of an adaptive remeshing technique with the multifunctional super singular element (MSSE) at the crack tip is proposed for the fracture process simulation of two-dimensional (2D) materials. The adaptive FEM for crack propagation divides the crack tip neighborhood into the MSSE region, the protection element (PE) region and the background element (BE) region. The MSSE is… More >

  • Open Access

    PROCEEDINGS

    Mechanisms of Thermo-Mechanical Fatigue Crack Growth in a Polycrystalline Ni-Base Superalloy

    Lu Zhang1,*, Yuzhuo Wang1, Zhiwei Yu1, Rong Jiang1, Liguo Zhao1, Yingdong Song1,2

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.30, No.3, pp. 1-2, 2024, DOI:10.32604/icces.2024.012701

    Abstract Thermo-mechanical fatigue (TMF), as the main failure mode of hot components of an aeroengine, are increasingly investigated recently [1,2]. TMF crack growth is studied in a nickel-based powder metallurgy (PM) superalloy subjected to in-phase (IP) and out-of-phase (OP), as well as isothermal fatigue (IF) at peak temperature. The crack growth rate and path are evaluated for both coarse grain (CG) and fine grain (FG) structure, especially the effects of phase angle and polycrystalline microstructure. The results show that the TMF crack propagation is mainly transgranular in OP condition; while in IP condition, crack propagates intergranularly… More >

  • Open Access

    PROCEEDINGS

    Fatigue Behaviors of Thick Cruciform Joints Made by Q355D Structural Steel Under Different Post-Welding Treatments

    Wei Song1,*, Xiaojian Shi2, Shoupan Wei2

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.30, No.3, pp. 1-1, 2024, DOI:10.32604/icces.2024.012236

    Abstract Different post-welding treatments, such as TIG-Dressing, blinding, HFMI et.al are often used for steel welded joints in construction machinery manufacturing as an effective and reliable method for fatigue strength improvement. This paper investigates the fatigue performance of thick Q355D cruciform joints in heavy load-carrying steel structures under different treatments. Two TIG-Dressing treatments, blinding and HFMI for the full-penetration welded joints were used for fatigue tests. Experimental tests studied the fatigue strength of cruciform welded joints of Q355D structural steel under different treatments. The geometric parameters and relevant statistical analyses were performed by actual 3D optical More >

  • Open Access

    ARTICLE

    Reliability Prediction of Wrought Carbon Steel Castings under Fatigue Loading Using Coupled Mold Optimization and Finite Element Simulation

    Muhammad Azhar Ali Khan1, Syed Sohail Akhtar2,3,*, Abba A. Abubakar2,4, Muhammad Asad1, Khaled S. Al-Athel2,5

    CMES-Computer Modeling in Engineering & Sciences, Vol.141, No.3, pp. 2325-2350, 2024, DOI:10.32604/cmes.2024.054741 - 31 October 2024

    Abstract The fatigue life and reliability of wrought carbon steel castings produced with an optimized mold design are predicted using a finite element method integrated with reliability calculations. The optimization of the mold is carried out using MAGMASoft mainly based on porosity reduction as a response. After validating the initial mold design with experimental data, a spring flap, a common component of an automotive suspension system is designed and optimized followed by fatigue life prediction based on simulation using Fe-safe. By taking into consideration the variation in both stress and strength, the stress-strength model is used… More >

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