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Engineering Letters
Objectives and Scope Engineering Letters is published with both online and print versions. The journal covers the frontier issues in the engineering and the computer science and their applications in business, industry and other subjects. The computer science is a branch of engineering science that studies computable processes and structures. It contains theories for understanding computing systems and methods; computational algorithms and tools; methodologies for testing of concepts. The subjects covered by the journal include artificial intelligence, bioinformatics, computational statistics, database, data mining, financial engineering, hardware systems, imaging engineering, industrial engineering, internet computing, networking, operations research, scientific computing, software engineering, and their applications etc. Printed copies of the journal are distributed to accredited universities and government libraries. All the papers in the journal are also available freely with online full-text content and permanent worldwide web link. The abstracts will be indexed and available at major academic databases. ISSN: 1816-0948 (online version); 1816-093X (print version) Subject Category: Computer science and engineering Published by: International Association of Engineers
Contents: Volume 33 Issue 2 (Online version available: 1 February 2025)
JOURNAL PAPERS: Photovoltaic MPPT Tracking under Partial Shading Based on ICS-IGSS-INC Hybrid Algorithm Tan Liu, Hexu Yu, Sisi Liu, Jiaqi Tong, Zhiyi Wu, and Qingyun Yuan Engineering Letters, 33:2, pp215-222 [Online Full Text] Tan Liu, Hexu Yu, Sisi Liu, Jiaqi Tong, Zhiyi Wu, and Qingyun Yuan, "Photovoltaic MPPT Tracking under Partial Shading Based on ICS-IGSS-INC Hybrid Algorithm," Engineering Letters, vol. 33, no. 2, pp215-222, 2025
A Railway Ticket Data Pricing Model with Attenuation Coefficient Based on Stackelberg Game Yuzhao Zhang, Shenyingze Gao, Weifeng Shi, Jianqiang Wang, and Yanhua Wu Engineering Letters, 33:2, pp223-235 [Online Full Text] Yuzhao Zhang, Shenyingze Gao, Weifeng Shi, Jianqiang Wang, and Yanhua Wu, "A Railway Ticket Data Pricing Model with Attenuation Coefficient Based on Stackelberg Game," Engineering Letters, vol. 33, no. 2, pp223-235, 2025
Nonlinear Models: Analysis of Anomalous Drug Diffusion Shilpa D'Cunha, and V. R. Lakshmi Gorty Engineering Letters, 33:2, pp236-246 [Online Full Text] Shilpa D'Cunha, and V. R. Lakshmi Gorty, "Nonlinear Models: Analysis of Anomalous Drug Diffusion," Engineering Letters, vol. 33, no. 2, pp236-246, 2025
Prescribed-time Attitude Tracking Control of Quadrotor UAVs with Unknown Disturbances Xuejiao Wang, Yingsen Li, Ming Chen, and Yulin Gai Engineering Letters, 33:2, pp247-252 [Online Full Text] Xuejiao Wang, Yingsen Li, Ming Chen, and Yulin Gai, "Prescribed-time Attitude Tracking Control of Quadrotor UAVs with Unknown Disturbances," Engineering Letters, vol. 33, no. 2, pp247-252, 2025
Research on Cooperative Control Feasibility of Methanol Internal Combustion Engine with Dual Electric Turbo Compound System Yong Song, Jianghao Sun, Xiqing Zhang, Zhanlong Li, Tuo Xu, and Yao Wang Engineering Letters, 33:2, pp253-264 [Online Full Text] Yong Song, Jianghao Sun, Xiqing Zhang, Zhanlong Li, Tuo Xu, and Yao Wang, "Research on Cooperative Control Feasibility of Methanol Internal Combustion Engine with Dual Electric Turbo Compound System," Engineering Letters, vol. 33, no. 2, pp253-264, 2025
Game-theoretical Evaluating Rules for Minimizing Losses under Multi-objective Situations Hui-Chuan Wei, Ai-Tzu Li, Wei-Ni Wang, and Yu-Hsien Liao Engineering Letters, 33:2, pp265-274 [Online Full Text] Hui-Chuan Wei, Ai-Tzu Li, Wei-Ni Wang, and Yu-Hsien Liao, "Game-theoretical Evaluating Rules for Minimizing Losses under Multi-objective Situations," Engineering Letters, vol. 33, no. 2, pp265-274, 2025
Lightweight Privacy-Preserving Anomaly Detection for Time Series Based on Federated Learning Bin Jiang, Guangfeng Wang, Xuerong Cui, and Jian Wang Engineering Letters, 33:2, pp275-281 [Online Full Text] Bin Jiang, Guangfeng Wang, Xuerong Cui, and Jian Wang, "Lightweight Privacy-Preserving Anomaly Detection for Time Series Based on Federated Learning," Engineering Letters, vol. 33, no. 2, pp275-281, 2025
Adaptive ROI Optimization Pyramid Network: Lane Detection for FSD under Data Uncertainty Xu Cao, Weisheng Liu, and Zhijian Wang Engineering Letters, 33:2, pp282-291 [Online Full Text] Xu Cao, Weisheng Liu, and Zhijian Wang, "Adaptive ROI Optimization Pyramid Network: Lane Detection for FSD under Data Uncertainty," Engineering Letters, vol. 33, no. 2, pp282-291, 2025
A Finite Difference Method for Solution of Integer-order and Caputo Fractional-time Advection-Diffusion-Reaction Equations: Convergence Analysis and Application to Air Pollution Surattana Sungnul, Kanokwarun Para, Elvin J. Moore, Sekson Sirisubtawee, and Sutthisak Phongthanapanich Engineering Letters, 33:2, pp292-311 [Online Full Text] Surattana Sungnul, Kanokwarun Para, Elvin J. Moore, Sekson Sirisubtawee, and Sutthisak Phongthanapanich, "A Finite Difference Method for Solution of Integer-order and Caputo Fractional-time Advection-Diffusion-Reaction Equations: Convergence Analysis and Application to Air Pollution," Engineering Letters, vol. 33, no. 2, pp292-311, 2025
Automatic Picking Method of P-wave Initial Time of Microseismic in Coal Mine Hongyan Li, Jian Wu, and Weifeng Wang Engineering Letters, 33:2, pp312-319 [Online Full Text] Hongyan Li, Jian Wu, and Weifeng Wang, "Automatic Picking Method of P-wave Initial Time of Microseismic in Coal Mine," Engineering Letters, vol. 33, no. 2, pp312-319, 2025
Research on Active Fault Tolerant Control Strategy for Distributed Drive Electric Vehicles Based on Multi-Actuator Failure Zhigang Zhou, Meizhong Chen, Guanghua Zhang, Wei Shen, and Ruili Yang Engineering Letters, 33:2, pp320-329 [Online Full Text] Zhigang Zhou, Meizhong Chen, Guanghua Zhang, Wei Shen, and Ruili Yang, "Research on Active Fault Tolerant Control Strategy for Distributed Drive Electric Vehicles Based on Multi-Actuator Failure," Engineering Letters, vol. 33, no. 2, pp320-329, 2025
Roughness Results in Rings Shreehari Bhaskar, Prakash Padoor, and Kavitha Koppula Engineering Letters, 33:2, pp330-337 [Online Full Text] Shreehari Bhaskar, Prakash Padoor, and Kavitha Koppula, "Roughness Results in Rings," Engineering Letters, vol. 33, no. 2, pp330-337, 2025
Research on Double Attention Mechanism High-resolution Network for Human Pose Estimation Haisheng Li, Rongrong Yuan, Jingyin Chen, Qiuyi Li, and Cong Hu Engineering Letters, 33:2, pp338-347 [Online Full Text] Haisheng Li, Rongrong Yuan, Jingyin Chen, Qiuyi Li, and Cong Hu, "Research on Double Attention Mechanism High-resolution Network for Human Pose Estimation," Engineering Letters, vol. 33, no. 2, pp338-347, 2025
Research on Fatigue Driving Detection Based on Deep Learning Huinan Zhou, and Hong Dai Engineering Letters, 33:2, pp348-356 [Online Full Text] Huinan Zhou, and Hong Dai, "Research on Fatigue Driving Detection Based on Deep Learning," Engineering Letters, vol. 33, no. 2, pp348-356, 2025
Numerical Study of Multiphase Hybrid Gyro-tactic Nanofluid Flow through Porous Convergent Pipe with Injection and Suction David Chepkonga, Mathew Kinyanjui, Roy Kiogora, and Kang'ethe Giterere Engineering Letters, 33:2, pp357-373 [Online Full Text] David Chepkonga, Mathew Kinyanjui, Roy Kiogora, and Kang'ethe Giterere, "Numerical Study of Multiphase Hybrid Gyro-tactic Nanofluid Flow through Porous Convergent Pipe with Injection and Suction," Engineering Letters, vol. 33, no. 2, pp357-373, 2025
Generalization of Impedance Characterization Methods for Liquid Crystal-Embedded Tunable Transmission Lines and Applied Study into Guard Band Redundancy Evaluation Jinfeng Li, Haorong Li, Yunchen Xiao, Peixin Jiang, Sibo Wang, and Zehan Guo Engineering Letters, 33:2, pp374-381 [Online Full Text] Jinfeng Li, Haorong Li, Yunchen Xiao, Peixin Jiang, Sibo Wang, and Zehan Guo, "Generalization of Impedance Characterization Methods for Liquid Crystal-Embedded Tunable Transmission Lines and Applied Study into Guard Band Redundancy Evaluation," Engineering Letters, vol. 33, no. 2, pp374-381, 2025
AM2HRec: Dual-Representation Adaptive Noise Reduction for Multi-modal Recommendation Yang Yu, Chunna Zhang, Shengqiang Cong, Xiaoping Yue, Yuming Shen, and Jinchi Zhao Engineering Letters, 33:2, pp382-393 [Online Full Text] Yang Yu, Chunna Zhang, Shengqiang Cong, Xiaoping Yue, Yuming Shen, and Jinchi Zhao, "AM2HRec: Dual-Representation Adaptive Noise Reduction for Multi-modal Recommendation," Engineering Letters, vol. 33, no. 2, pp382-393, 2025
Generalized Graph Complementation Through Edge Partition Medini H R, Sabitha D'Souza, Devadas Nayak C, and Pradeep G Bhat Engineering Letters, 33:2, pp394-401 [Online Full Text] Medini H R, Sabitha D'Souza, Devadas Nayak C, and Pradeep G Bhat, "Generalized Graph Complementation Through Edge Partition," Engineering Letters, vol. 33, no. 2, pp394-401, 2025
Lightweight Rice Leaf Disease Detection Method Based on Improved YOLOv8 Yingan Fu, and Yong Zhang Engineering Letters, 33:2, pp402-417 [Online Full Text] Yingan Fu, and Yong Zhang, "Lightweight Rice Leaf Disease Detection Method Based on Improved YOLOv8," Engineering Letters, vol. 33, no. 2, pp402-417, 2025
Diabetic Retinopathy Image Segmentation Method Based on Fusion DenseNet and U-Net Network Yaxuan Zhang, Yang Xu, and Jinlong Zhai Engineering Letters, 33:2, pp418-428 [Online Full Text] Yaxuan Zhang, Yang Xu, and Jinlong Zhai, "Diabetic Retinopathy Image Segmentation Method Based on Fusion DenseNet and U-Net Network," Engineering Letters, vol. 33, no. 2, pp418-428, 2025
Finite State Machine and Matrix Representation for Solving Transition Modeling for Dynamic Programming Solution Ryan Garnet Andrianto, Rully Soelaiman, and Misbakhul Munir Irfan Subakti Engineering Letters, 33:2, pp429-441 [Online Full Text] Ryan Garnet Andrianto, Rully Soelaiman, and Misbakhul Munir Irfan Subakti, "Finite State Machine and Matrix Representation for Solving Transition Modeling for Dynamic Programming Solution," Engineering Letters, vol. 33, no. 2, pp429-441, 2025
Improved Particle Swarm Optimization Algorithm with Logistic Function and Trigonometric Function for Three-dimensional Path Planning Problems Yu-Bo Wang, Jie-Sheng Wang, and Xiao-Fei Sui Engineering Letters, 33:2, pp442-459 [Online Full Text] Yu-Bo Wang, Jie-Sheng Wang, and Xiao-Fei Sui, "Improved Particle Swarm Optimization Algorithm with Logistic Function and Trigonometric Function for Three-dimensional Path Planning Problems," Engineering Letters, vol. 33, no. 2, pp442-459, 2025
Study on Mechanical and Frost Resistance Properties of Soil Solidification Rock Recycled Aggregate Concrete Jianjun Teng, Nan Shi, Haifeng Wan, Yangfan Xin, Cheng Jin, Jie Wang, Zuowei Liu, Huijie Wei, and Jie Liu Engineering Letters, 33:2, pp460-469 [Online Full Text] Jianjun Teng, Nan Shi, Haifeng Wan, Yangfan Xin, Cheng Jin, Jie Wang, Zuowei Liu, Huijie Wei, and Jie Liu, "Study on Mechanical and Frost Resistance Properties of Soil Solidification Rock Recycled Aggregate Concrete," Engineering Letters, vol. 33, no. 2, pp460-469, 2025
Energy of Partial Complement of a Graph with Self-loops Amrithalakshmi, Sabitha D'Souza, and Swati Nayak Engineering Letters, 33:2, pp470-475 [Online Full Text] Amrithalakshmi, Sabitha D'Souza, and Swati Nayak, "Energy of Partial Complement of a Graph with Self-loops," Engineering Letters, vol. 33, no. 2, pp470-475, 2025
Research on Hybrid Control Methods for the Path Tracking of Driverless Vehicles Jingyuan Li, Jianguo Xi, Chengwei Xie, and Jianping Gao Engineering Letters, 33:2, pp476-489 [Online Full Text] Jingyuan Li, Jianguo Xi, Chengwei Xie, and Jianping Gao, "Research on Hybrid Control Methods for the Path Tracking of Driverless Vehicles," Engineering Letters, vol. 33, no. 2, pp476-489, 2025
Sequential Recommendation Based on Multi-Modal and Multi-Lingual Yongqing Wu, and Yu Xing Engineering Letters, 33:2, pp490-498 [Online Full Text] Yongqing Wu, and Yu Xing, "Sequential Recommendation Based on Multi-Modal and Multi-Lingual," Engineering Letters, vol. 33, no. 2, pp490-498, 2025
Coastal Processes Assessment of Mainland Kedah and Langkawi Island Shorelines: A Case Study Ebrahim Al-Qadami, Mohd Adib Mohammad Razi, Syed Muzzamil Hussain Shah, Arman Mokhtar, and Mahran Mahamud Engineering Letters, 33:2, pp499-507 [Online Full Text] Ebrahim Al-Qadami, Mohd Adib Mohammad Razi, Syed Muzzamil Hussain Shah, Arman Mokhtar, and Mahran Mahamud, "Coastal Processes Assessment of Mainland Kedah and Langkawi Island Shorelines: A Case Study," Engineering Letters, vol. 33, no. 2, pp499-507, 2025
Coming Special Issues of Engineering Letters Engineering Letters welcomes author submission of papers concerning any branch of the engineering and the computer science and their applications in business, industry and other subjects. The subjects covered by the journal include artificial intelligence, bioinformatics, computational statistics, database, data mining, financial engineering, hardware systems, imaging engineering, industrial engineering, internet computing, networking, operations research, scientific computing, software engineering, and their applications. With the efforts of the Editorial Board Members of Engineering Letters, the new online version and print version of the journal Engineering Letters has become available to the general public, instead of its old restricted versions. All submitted papers are to be peer-reviewed for ensuring their qualities.
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Engineering Letters
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