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A new particle swarm optimization-enhanced deep neural network for automatic ECG arrhythmias classification. 基于粒子群优化的心电心律失常自动分类深度神经网络。
IF 1.7 4区 医学
Computer Methods in Biomechanics and Biomedical Engineering Pub Date : 2025-05-08 DOI: 10.1080/10255842.2025.2501635
Yaaqoub Kahlessenane, Fatiha Bouaziz, Patrick Siarry
{"title":"A new particle swarm optimization-enhanced deep neural network for automatic ECG arrhythmias classification.","authors":"Yaaqoub Kahlessenane, Fatiha Bouaziz, Patrick Siarry","doi":"10.1080/10255842.2025.2501635","DOIUrl":"https://doi.org/10.1080/10255842.2025.2501635","url":null,"abstract":"<p><p>This study proposes an ECG classification system using particle swarm optimization (PSO) for automated deep neural network hyperparameter tuning. PSO optimizes five key parameters: neuron counts in two fully connected layers, dropout rate, learning rate, and optimizer selection. ECG signals undergo wavelet decomposition for feature extraction, with classification performed on the MIT-BIH Arrhythmia Database across five heartbeat classes. The PSO-optimized model achieves superior performance with 99.76% accuracy, 99.34% precision, and 99.21% F1 score, demonstrating PSO's effectiveness in improving model reliability while reducing manual effort.</p>","PeriodicalId":50640,"journal":{"name":"Computer Methods in Biomechanics and Biomedical Engineering","volume":" ","pages":"1-15"},"PeriodicalIF":1.7,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144051147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Numerical evaluations of different foot arch types: effects of loading on plantar pressure distribution and bone stress. 不同足弓类型的数值评估：载荷对足底压力分布和骨应力的影响。
IF 1.7 4区 医学
Computer Methods in Biomechanics and Biomedical Engineering Pub Date : 2025-05-07 DOI: 10.1080/10255842.2025.2499620
Yue Sun, Yuanzhu Sun, Shichen Zhang, Mei-Ying Kwan, Kit-Lun Yick, Bingfei Gu
{"title":"Numerical evaluations of different foot arch types: effects of loading on plantar pressure distribution and bone stress.","authors":"Yue Sun, Yuanzhu Sun, Shichen Zhang, Mei-Ying Kwan, Kit-Lun Yick, Bingfei Gu","doi":"10.1080/10255842.2025.2499620","DOIUrl":"https://doi.org/10.1080/10255842.2025.2499620","url":null,"abstract":"<p><p>This study aimed to investigate the biomechanical variations among different types of foot arches. Plantar pressure and foot bone stress of three arch types under bipedal standing, single foot standing and running mid-stance were investigated by simulation. Compared with the normal foot, the stress in the hind foot area of high arch foot increased significantly, while the contact area of the low arch foot increased. Bone stress in high arch increased more significantly when changed from bipedal standing to single foot standing or running. The results support the link between abnormal arches and foot pain, providing design basis for orthopedic insoles.</p>","PeriodicalId":50640,"journal":{"name":"Computer Methods in Biomechanics and Biomedical Engineering","volume":" ","pages":"1-14"},"PeriodicalIF":1.7,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144055651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A multi-scale computational approach to evaluate the overall anisotropic elastic moduli of natural enamels accounting for the actual nano-HAP crystallite effect. 考虑实际纳米hap晶体效应的天然搪瓷整体各向异性弹性模量的多尺度计算方法。
IF 1.7 4区 医学
Computer Methods in Biomechanics and Biomedical Engineering Pub Date : 2025-05-07 DOI: 10.1080/10255842.2025.2498043
Jian-Tao Liu, Yi-Fei Wan, Zhao-Fei Huang, Zhu-Cheng Jin, Guang-Shen Tan, Zhi-Qiang Feng
{"title":"A multi-scale computational approach to evaluate the overall anisotropic elastic moduli of natural enamels accounting for the actual nano-HAP crystallite effect.","authors":"Jian-Tao Liu, Yi-Fei Wan, Zhao-Fei Huang, Zhu-Cheng Jin, Guang-Shen Tan, Zhi-Qiang Feng","doi":"10.1080/10255842.2025.2498043","DOIUrl":"https://doi.org/10.1080/10255842.2025.2498043","url":null,"abstract":"<p><p>In this study, a multi-scale computational methodology was developed to directly incorporate the HAP orientation and architecture effects into the overall elastic moduli of natural enamels. Precisely, the strong, weak and discretized governing formulations of the enamel representative unit cell were first constructed, and a numerical approach was then presented to compute the relevant moduli. Further, a top-down modeling scheme was proposed to evaluate the stiffness of each element accurately using the meshing scheme established previously. The computational methodology was validated with the predictions in the open literatures, and discussions were made on the HAP organization and material proportion effects.</p>","PeriodicalId":50640,"journal":{"name":"Computer Methods in Biomechanics and Biomedical Engineering","volume":" ","pages":"1-16"},"PeriodicalIF":1.7,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144025455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A review of case study on different metaheuristic optimization techniques for disease detection and classification. 不同疾病检测和分类的元启发式优化技术的案例研究综述。
IF 1.7 4区 医学
Computer Methods in Biomechanics and Biomedical Engineering Pub Date : 2025-05-04 DOI: 10.1080/10255842.2025.2495249
Priyanka S More, Baljit Singh Saini, Rakesh Kumar Sharma, Shivaprasad S More
{"title":"A review of case study on different metaheuristic optimization techniques for disease detection and classification.","authors":"Priyanka S More, Baljit Singh Saini, Rakesh Kumar Sharma, Shivaprasad S More","doi":"10.1080/10255842.2025.2495249","DOIUrl":"https://doi.org/10.1080/10255842.2025.2495249","url":null,"abstract":"<p><p>This framework explores the use of metaheuristic optimization techniques for disease detection, specifically in image segmentation and feature selection to enhance classification performance. The study evaluates five swarm intelligence methods: Artificial Bee Colony (ABC) for image segmentation, Krill Herd Optimization (KHO) for both segmentation and feature selection, Particle Swarm Optimization (PSO) for feature selection, Grey Wolf Optimization (GWO) for feature selection, and Moth-Flame Optimization (MFO) for feature selection. Results demonstrate significant performance improvements, with accuracy increases of 0.9%, 2%, 2.3%, 2.1%, and 4.2%. These gains are attributed to optimized exploration/exploitation, enhanced diversity, and convergence, showing the effectiveness of metaheuristic techniques in disease detection.</p>","PeriodicalId":50640,"journal":{"name":"Computer Methods in Biomechanics and Biomedical Engineering","volume":" ","pages":"1-19"},"PeriodicalIF":1.7,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144055650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Gait phase recognition method for lower limb exoskeleton robot based on SE channel attention mechanism enhanced TCN-SVM. 基于SE通道注意机制的下肢外骨骼机器人步态相位识别方法增强了TCN-SVM。
IF 1.7 4区 医学
Computer Methods in Biomechanics and Biomedical Engineering Pub Date : 2025-05-04 DOI: 10.1080/10255842.2025.2495251
BinHao Huang, Jian Lv, Ligang Qiang
{"title":"Gait phase recognition method for lower limb exoskeleton robot based on SE channel attention mechanism enhanced TCN-SVM.","authors":"BinHao Huang, Jian Lv, Ligang Qiang","doi":"10.1080/10255842.2025.2495251","DOIUrl":"https://doi.org/10.1080/10255842.2025.2495251","url":null,"abstract":"<p><p>This study develops an integrated system for collecting kinematic signals from lower limb exoskeletons, combining thigh muscle pressure with inertial measurements. The system captures muscle pressure, triaxial acceleration, and angle data. A temporal convolutional network model with an SE attention mechanism and SVM classifier is proposed for gait phase recognition. Results show that the FMG-IMU data fusion strategy achieves high accuracy, stability, and low sensitivity to external noise, effectively recognizing gait phases and improving exoskeleton performance.</p>","PeriodicalId":50640,"journal":{"name":"Computer Methods in Biomechanics and Biomedical Engineering","volume":" ","pages":"1-20"},"PeriodicalIF":1.7,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144013589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mathematical modeling and dynamical observations of HIV/AIDS transmission under the role of antiretroviral treatment. 抗逆转录病毒治疗作用下艾滋病毒/艾滋病传播的数学建模和动态观察。
IF 1.7 4区 医学
Computer Methods in Biomechanics and Biomedical Engineering Pub Date : 2025-05-04 DOI: 10.1080/10255842.2025.2497404
Muhammad Asad Ullah, Nauman Raza, Parvaiz Ahmad Naik, Muhammad Farman, Younes Chahlaoui, Zhengxin Huang
{"title":"Mathematical modeling and dynamical observations of HIV/AIDS transmission under the role of antiretroviral treatment.","authors":"Muhammad Asad Ullah, Nauman Raza, Parvaiz Ahmad Naik, Muhammad Farman, Younes Chahlaoui, Zhengxin Huang","doi":"10.1080/10255842.2025.2497404","DOIUrl":"https://doi.org/10.1080/10255842.2025.2497404","url":null,"abstract":"<p><p>The Human Immunodeficiency Virus (HIV) attacks particular immune system cells such as Tcells (primarily CD+4T cells) and triggers lifetime severe sickness with a prolonged incubation period. This study develops and analyzes a novel mathematical model to understand the spread of the virus, using real-world data reported cases in Taiwan from 2000 to 2023. The mathematical properties of the model, such as existence, uniqueness, positivity, and boundedness, are rigorously examined to ensure reliability. Equilibrium points are determined, and their stability is analyzed to understand the long-term behavior of the disease. The fundamental reproduction number is obtained using the next generation approach. Sensitivity analysis is performed using different variables as response functions each time, employing Latin Hypercube Sampling and Partial Rank Correlation Coefficient with 200 iterations. Theoretical results are validated using numerical simulations and graphically display the impacts of different model parameters. Results indicate that reducing contact with infected individuals and accelerating disease management interventions can significantly lower the burden of infection.</p>","PeriodicalId":50640,"journal":{"name":"Computer Methods in Biomechanics and Biomedical Engineering","volume":" ","pages":"1-15"},"PeriodicalIF":1.7,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144037344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A transcutaneous acupoint electrical simulation glove for relieving the mental fatigue of crane drivers in real building environment. 用于缓解真实建筑环境中起重机司机精神疲劳的经皮穴位电模拟手套。
IF 1.7 4区 医学
Computer Methods in Biomechanics and Biomedical Engineering Pub Date : 2025-05-01 Epub Date: 2024-01-04 DOI: 10.1080/10255842.2023.2301668
Fuwang Wang, Daping Chen, Xiaolei Zhang
{"title":"A transcutaneous acupoint electrical simulation glove for relieving the mental fatigue of crane drivers in real building environment.","authors":"Fuwang Wang, Daping Chen, Xiaolei Zhang","doi":"10.1080/10255842.2023.2301668","DOIUrl":"10.1080/10255842.2023.2301668","url":null,"abstract":"<p><p>In the field of construction, the lifting environment of precast parts is more complex, which leads to the driver's fatigue. When the tower crane driver appears driving fatigue, it will appear slow operation response, hoisting precast parts appear abnormal swing, which will endanger the safety of on-site operators. Therefore, this study developed a kind of transcutaneous acupoint electrical stimulation gloves. When the crane driver wears this kind of glove, the good contraction of the glove can make the stimulation electrode closely fit with the three points, so as to perform electrical stimulation on the Neìguān point (PC6), Láogóng point (PC8) and Hégŭ point (L14) of the palm to relieve the driver's driving fatigue. In this study, non-periodic transcutaneous acupoint electrical stimulation (NPTAES) was used to stimulate human acupuncture points. This is different from the traditional periodic transcutaneous acupoint electrical stimulation (PTAES) method for relieving mental fatigue. In addition, this study used hilbert marginal spectral entropy (HMSE) to calculate the heart rate variability (HRV) characteristics of the subjects, so as to detect and analyze the driving fatigue of the drivers. At the same time, the drivers' blinking frequency and electroencephalogram (EEG) characteristics were analyzed comprehensively. The results show that: The NPTAES method used in this study is superior to the PTAES method in alleviating driving fatigue and greatly improves the efficiency of tower crane drivers. Compared to other methods, the HMSE method proposed in this study, when analyzing signals, stronger ability to characterize signal characteristics.</p>","PeriodicalId":50640,"journal":{"name":"Computer Methods in Biomechanics and Biomedical Engineering","volume":" ","pages":"725-738"},"PeriodicalIF":1.7,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139099139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Biomechanical insights to mitigate lateral hinge fracture risk in opening-wedge high tibial osteotomy. 利用生物力学方法降低开楔形高位胫骨截骨术中外侧铰链骨折的风险。
IF 1.7 4区 医学
Computer Methods in Biomechanics and Biomedical Engineering Pub Date : 2025-05-01 Epub Date: 2025-03-27 DOI: 10.1080/10255842.2025.2484570
Haoyue Wu, Kyung-Hwan Jung, Xinyu Na, Jong-Hyeok Kwon, Jeong-Min Heo, Dae-Seo Kwon, Dong-Kyu Kim
{"title":"Biomechanical insights to mitigate lateral hinge fracture risk in opening-wedge high tibial osteotomy.","authors":"Haoyue Wu, Kyung-Hwan Jung, Xinyu Na, Jong-Hyeok Kwon, Jeong-Min Heo, Dae-Seo Kwon, Dong-Kyu Kim","doi":"10.1080/10255842.2025.2484570","DOIUrl":"10.1080/10255842.2025.2484570","url":null,"abstract":"<p><p>Lateral hinge fractures (LHFs) are serious complications of high tibial osteotomy (HTO). We aimed to establish the relationship between osteotomy parameters and LHF risk factors using finite element simulation. The parameters analyzed included cutting position, hinge position, and correction angle. Optimizing the hinge position in HTO reduced stress and strain concentrations. An osteotomy with a 40 mm cutting position and an AL hinge effectively minimized force moments and stress while ensuring that strain remained below the cortical bone's yield limit. These findings highlight the importance of optimizing osteotomy parameters to reduce LHF risk and improve surgical outcomes in HTO.</p>","PeriodicalId":50640,"journal":{"name":"Computer Methods in Biomechanics and Biomedical Engineering","volume":" ","pages":"855-866"},"PeriodicalIF":1.7,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143732862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of gold and silver nanoparticles injected in blood with viscous dissipation. 金、银纳米颗粒注入血液对黏性耗散的影响。
IF 1.7 4区 医学
Computer Methods in Biomechanics and Biomedical Engineering Pub Date : 2025-05-01 DOI: 10.1080/10255842.2025.2495893
Haris Alam Zuberi, Madan Lal, Shivangi Verma, Ali J Chamkha, Nurul Amira Zainal
{"title":"Impact of gold and silver nanoparticles injected in blood with viscous dissipation.","authors":"Haris Alam Zuberi, Madan Lal, Shivangi Verma, Ali J Chamkha, Nurul Amira Zainal","doi":"10.1080/10255842.2025.2495893","DOIUrl":"https://doi.org/10.1080/10255842.2025.2495893","url":null,"abstract":"<p><p>A nano-blood model is developed to study the flow of gold- and silver-infused blood through a porous, stenotic artery under Newtonian assumptions. Wall curvature, convective heating, wall motion, and viscous dissipation are considered. Darcy's model simulates porous resistance, and the Tiwari-Das model captures nanoparticle effects. Governing equations are reduced via similarity transformations and solved using MATLAB's bvp4c solver. Validation against existing studies is provided. Results show gold-blood nanofluid achieves higher velocities than silver-blood. Increasing the Biot number enhances cooling at the arterial wall. Detailed graphs and 3D contour plots illustrate the effects on temperature, velocity, skin friction, and Nusselt number.</p>","PeriodicalId":50640,"journal":{"name":"Computer Methods in Biomechanics and Biomedical Engineering","volume":" ","pages":"1-25"},"PeriodicalIF":1.7,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144006525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of hematocrit on pulsatile blood flow in stenosed arteries: a computational study in healthy, diabetic, and anemic models. 血细胞比容对狭窄动脉搏动血流的影响：健康、糖尿病和贫血模型的计算研究。
IF 1.7 4区 医学
Computer Methods in Biomechanics and Biomedical Engineering Pub Date : 2025-05-01 Epub Date: 2024-01-31 DOI: 10.1080/10255842.2024.2310720
Badreddine Behir, Abdelhakim Benslimane, Hamza Mehdaoui, Boukhari Mehdi
{"title":"Impact of hematocrit on pulsatile blood flow in stenosed arteries: a computational study in healthy, diabetic, and anemic models.","authors":"Badreddine Behir, Abdelhakim Benslimane, Hamza Mehdaoui, Boukhari Mehdi","doi":"10.1080/10255842.2024.2310720","DOIUrl":"10.1080/10255842.2024.2310720","url":null,"abstract":"<p><p>In this study, researchers aim to enhance the realism of circulatory system simulations, focusing on factors affecting flow variations, particularly in stenotic arteries of individuals with altered hematocrit levels. Through extensive data collection and varied conditions, the goal is to attain more precise and valid results. The study conducts approximate simulations to comprehensively describe the dynamic motion of pulsatile flow. Different values of inlet velocity (UDF) are introduced, considering potential arterial distortion or occlusion due to plaque deposition, along with variations in hematocrit (Hct) levels commonly observed in patients. Three distinct types of pulsatile blood flow, corresponding to diabetes (Hct 65%), healthy (Hct 45%), and anemia (Hct 25%), are studied and compared. The research illuminates that stenosis in arteries with varying hematocrit levels significantly impacts hydrodynamic features, potentially predisposing individuals to cardiovascular diseases. Through meticulous analysis, several conclusions about hemodynamic characteristics are drawn. It is observed that both velocity and wall shear stress exhibit variation along the affected artery, influenced by stenosis and changes in hematocrit levels. Notably, the highest influence on velocity and wall shear stress is observed with Hct 65%, compared to Hct 45% and Hct 25% at the moment of stenosis. These findings hold substantial practical implications for the field of cardiovascular health, providing valuable insights into blood flow behavior in stenotic arteries with diverse hematocrit levels. Ultimately, this research contributes to more effective clinical interventions.</p>","PeriodicalId":50640,"journal":{"name":"Computer Methods in Biomechanics and Biomedical Engineering","volume":" ","pages":"764-776"},"PeriodicalIF":1.7,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139652028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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