An Improved Harmony Search Algorithm for Power Distribution Network Planning by Wei Sun, Xingyan Chang

“…IHS algorithm is applied to solve the complex optimization mathematical model. The empirical results strongly indicate that IHS algorithm can effectively provide better results for solving the distribution network planning problem compared to other optimization algorithms.…”
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Integrated Scheduling Optimization for Multi-Line Production and Transportation of Prefabricated Components Considering Shared Resources by Yiran Dan, Chengshuang Sun, Qianmai Luo

“…With on-time delivery and lower costs as the goals, a scheduling optimization mathematical model is established for this scenario. …”
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Lightweight Design of Transmission Gear of an Aircraft Gun Ammunition Box based on SIMP Material Interpolation Model by Guanming Huang, Mingmin Liu, Hongliang Yang, Haiyang Zhang, Yongfeng Fan, Feng Xie, Shengli Ge

“…In order to enhance the performance of fighter， and realize the aim of lightweight design of aircraft gun， taking the transmission gear of a certain aircraft gun ammunition box as the research object， through topological optimization method of material interpolation model based on SIMP（solid isotropic material with realization）， a topological optimization mathematical model for the density of gear structural unit as design variable， minimum flexibility as objective function， the percentage of volume fraction before and after optimization and the structural balance equation as constraint functions is established， the topology optimization of ammunition box transmission gear is studied. …”
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A Kind of FM-BEM Penalty Function Method for a 3D Elastic Frictional Contact Nonlinear System by Chunxiao Yu, Dinghui Jing, Chang Fu, Yanfang Yang

“…By using the least square method and penalty function method, an optimization mathematical model and a mathematical programming model with a penalty factor are established for the node_face frictional contact nonlinear system. …”
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Optimal Design of Single-stage Double-arc Spiral Bevel Gear Nutation Reducer by Zheng Lin, Ligang Yao, Tongke Su, Zheng Sun

“…With the minimum volume of the nutation reducer as the objective function，an optimization mathematical model is established with 4 design variables and 12 optimization constraints，and the relevant parameters of the single-stage nutation bevel gear are obtained. …”
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Preventive Control Strategy of Cascading Fault considering Safety and Economy by Hui-Qiong Deng, Jie Luo, Chen-Chen Li, Pei-Qiang Li, Rong-Jin Zheng

“…The model is a two-layer optimization mathematical model, with the inner model being solved by particle swarm optimization to minimize the power grid safety margin. …”
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Multiobjective Optimization Management of Construction Engineering Based on Ant Colony Algorithm by Xuejie Liang

“…Then, combined with the idea of multiobjective optimization, the multiobjective optimization mathematical model of construction process is constructed, and the construction data obtained from field investigation are summarized and analyzed to obtain the cost, construction period, and carbon emission of each process under different execution modes. …”
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Optimization method of time of use electricity price considering losses in distributed photovoltaic access distribution network by Tianshou Li, Qing Xu, Weiwu Li, Xinying Wang, Zhengying Liu

“…Also, this paper constructs a time of use electricity price optimization mathematical model with the objectives of minimizing network loss, minimizing load variance, minimizing peak valley difference of equivalent load, and maximizing user satisfaction. …”
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Multiobjective Optimization Design and Experimental Study of Desulfurization Dust Removal Centrifugal Pump Based on Immune Particle Swarm Algorithm by Yuqin Wang, Xinwang Huo, Hailong Ji

“…The velocity coefficient method was used for hydraulic design of centrifugal pump, and the three-dimensional modeling and numerical simulation of flow field of centrifugal pump were carried out by using computational fluid dynamics technology (CFD). The optimal mathematical model with the highest efficiency and the lowest pump net positive suction head NPSHr as the objective function was established under the condition of no curve hump. …”
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PERFORMANCE ANALYSIS AND WEAR MECHANISM RESEARCH OF FEEDING SCREW OF COAL CLEANING MACHINE by XIE Miao, PEI BoBo, LIU ZhiXiang, LI Zheng, GENG XiWang

“…,the torque of screw is relatively small at the same time.In conclusion, the best range of screw speed is 35 r/min～ 50 r/min.In addition, the screw wear is serious when transporting large coal particles compared with small particles.Therefore, in practical application, the transportation of large coal should be carried out at low screw speed.Based on the above conclusion, in this paper, an optimal mathematical model is established to minimize the driving torque, obtaining the optimal structure and dynamic parameters of the screw, and proving the correctness of optimization process by simulation test.It provides a theoretical reference for improving the transportation efficiency of the coal cleaning machine, reducing the energy consumption of the equipment and prolonging the service life of the equipment.…”
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Microcrack feature extraction method for chaotic optical surface of silicon nitride ceramic bearing roller based on multi-scale wavelet transform enhancement and optimized PSO-FCM... by Yi Jiang, Mengtao Tang, Wenjie Dong, Guoxing Tang, Weiwen Hu, Jiao Li

“…The particle swarm optimization mathematical equation with a decay function is built to optimize the FCM chaotic clustering model. …”
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Assessment of economic efficiency of hydrogen production using wind and solar energy by Oleg V. Marchenko, Sergei V. Solomin

“…Calculations were carried out using the optimization mathematical model REM-2 (Renewable Energy Model). …”
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Multiobjective Optimization Design and Performance Prediction of Centrifugal Pump Based on Orthogonal Test by Yuqin Wang, Xinwang Huo

“…In order to improve the hydraulic performance of the centrifugal pump, based on the original model, the optimization mathematical model with the four indexes head, efficiency, shaft power, and pump net positive suction head as objective function was established, and the multiobjective optimization design of the centrifugal pump was carried out by orthogonal test. …”
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Co-infection mathematical model for HIV/AIDS and tuberculosis with optimal control in Ethiopia. by Tigabu Kasie Ayele, Emile Franc Doungmo Goufo, Stella Mugisha

“…To curtail the cost and disease fatality, an optimal control model is formulated via time based controlling efforts. The optimal mathematical model is analysed both analytically and numerically. …”
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