The Holling Type II Population Model Subjected to Rapid Random Attacks of Predator by Jevgeņijs Carkovs, Jolanta Goldšteine, Kārlis Šadurskis

“…We present the analysis of a mathematical model of the dynamics of interacting predator and prey populations with the Holling type random trophic function under the assumption of random time interval passage between predator attacks on prey. …”
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Study on the Temperature Field of Wet Brake Contact Interface based on Fractal Theory by Cui Tingqiong, Fan Jianwen, Zhu Enzhou, Guan Jing

“…In order to improve the braking performance and service life of wet brake,taking the wet brake of the dump truck as research object,based on the fractal theory,considering the influence of variable effect of moving heat source and friction heat flow,the mathematic model of wet brake temperature field is established,the 3D solid model of friction pair is established in the CATIA and the emergency braking is simulated by using the finite element analysis software ANSYS,the wet brake temperature field and stress field distribution are studied. …”
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Active Power Filter DC Bus Voltage Piecewise Reaching Law Variable Structure Control by Baolian Liu, Zujun Ding, Huanyu Zhao, Defei Jin

“…The external disturbances such as power grid and load fluctuation and the system parameters changing may affect the stability of APF DC bus voltage and the normal operation of APF. The mathematical model of DC bus voltage is established according to power balance principle and a DC bus voltage piecewise reaching law variable structure control algorithm is proposed to solve the above problem, and the design method is given. …”
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Tooth Contact Analysis and Experimental Verification of Oerlikon Cycloidal Hypoid Gear by Du Jinfu, Fang Zongde, Yue Guiping, Gao Hongbiao, Zhao Guorui

“…A mathematical model is established for the whole tooth surface generation of the Oerlikon cycloidal hypoid gear,which includes the work flank and the tooth base surfaces,based on it,the tooth 3D model is obtained. …”
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Dynamical System and Nonlinear Regression for Estimate Host-Parasitoid Relationship by Ileana Miranda Cabrera, Heyker Lellanis Baños Díaz, María de los Ángeles Martínez

“…The complex relationships of a crop with the pest, its natural enemies, and the climate factors exist in all the ecosystems, but the mathematic models has studied only some components to know the relation cause-effect. …”
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DYNAMIC CHARACTERISTICS ANALYSIS OF SPHERICAL HYBRID SLIDING BEARINGS by JI DongSheng, SHEN JingFeng, CHEN YuFei, ZHOU YiHao

“…Taking spherical hybrid sliding bearings as the research object, established the mathematical model of lubrication analysis of spherical sliding bearings, the dynamic liquid lubrication equation under laminar flow was derived by the perturbation method, the partial differential equation of disturbance pressure was solved by the finite difference method, and the liquid was calculated numerically. …”
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EQUIVALENT CIRCUIT SIMULATION OF TWO-DEGREE OF FREEDOM VIBRO-IMPACT SYSTEM WITH GAP by LIU RuiJia, WANG Zheng, LUO Fan

“…Taking the two-degree of freedom vibro-impact system with gap as the research object, the mathematical model was established and the numerical simulation analysis was carried out in Matlab software. …”
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Optimal Covid-19 Control on Effectiveness of Detection Campaign and Treatment by Mouhamadou A. M. T. Baldé, Sidy Ly, Léna Tendeng

“…The COVID-19 pandemic has seen the development of several mathematical models. In recent years, the very topical issue of re-susceptibility has led to the proposal of more complex models to address this issue. …”
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On the decay of strength in Guilin red clay with cracks by Yi Li, Keneng Zhang, Baochen Liu, Zongyuan Pan

“…In order to research the effect of cracks in red clay on shear strength through dry-wet cycle test, the experimenters used imaging software and a mathematical model to determine fractal dimension and crack ratio of surface cracks in red clay in Guilin, China. …”
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Dynamic Modeling and Simulation of a Super-High-Speed Circumferential-Flux Hysteresis Motor by A. Halvaei Niasar, M. Zare, H. Moghbelli

“…This paper presents the dynamic performance characteristics of hysteresis motors using a Matlab/Simulink software. A nonlinear mathematical model based on a d-q axis theory in the rotor reference frame is applied to study the starting and synchronization processes of a hysteresis machine with a circumferential-flux-type rotor. …”
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Dynamics of an infectious diseases with media/psychology induced non-smooth incidence by Yanni Xiao, Tingting Zhao, Sanyi Tang

“…This paper proposes and analyzes a mathematical model on aninfectious disease system with a piecewise smooth incidence rateconcerning media/psychological effect. …”
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Analysis of the Thermal Characteristics of Surrounding Rock in Deep Underground Space by Liu Chen, Jiangbo Li, Fei Han, Yu Zhang, Lang Liu, Bo Zhang

“…According to the mathematical model of heat transfer of the surrounding rock in deep underground space, similar criteria numbers are established. …”
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Command Filtering and Barrier Lyapunov Function-Based Adaptive Control for PMSMs with Core Losses and All-State Restrictions by Xiaoling Wang, Jinpeng Yu

“…To begin with, the RBF neural network technique is utilized to get close to the uncharted nonlinear terms which existed in PMSM’s mathematical model. Meanwhile, an advanced adaptive command filter control methodology is constructed to avoid the computing explosion during the process of backstepping design. …”
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Study on Spinning Forming Method of Cylindrical Parts with Quadrilateral Fillet Section by Yuliang Liu, Litong Zhang, Baichao Wang, Xin Wang

“…Based on this principle and using the transformation method of high pair and low generation，the accurate mathematical model of the spinning wheel motion track in the spinning process of the cylinder with four corner fillet section is established，and the mechanism motion relationship of the spinning wheel and the parts is obtained. …”
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Modeling and Simulation of Track Clamp Jacking System based on Bond Graph theory by Chen Suli, Fan Yansong, Wang Wei, Ren Fushen

“…Based on bond graph theory,the mathematical model of track clamp jacking system is established,and the dynamic equation is derived. …”
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LIFE-CYCLE COST AS AN ASSESSMENT OF THE FINANCIAL EFFECTIVENESS OF AN INVESTMENT AND CONSTRUCTION PROJECT OF SOCIAL INFRASTRUCTURE by A. A. Kuznetsov

“…An economic and mathematical model for calculating the cost of life cycle costs in base and current prices, as well as an analysis of the factors forming it have been presented in the paper.…”
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Research on the Optimization Strategy of the Speed Ratio Control Parameter of Vehicle Swing Pin Chain CVT by Guo Wei, Li Yuankai, Zhang Wu, Jia Gaoxiang

“…The fuzzy PID control method is adopted to simulate the automobile cycle working condition by analyzing the structure and working principle of the swing pin chain CVT，the mathematical model of the CVT transmission system and the sub-model of the speed ratio fuzzy controller are built. …”
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Advancing dental biofilm models: the integral role of pH in predicting S. mutans colonization by Jay S. Sangha, Valentina Gogulancea, Thomas P. Curtis, Nicholas S. Jakubovics, Paul Barrett, Aline Metris, Irina D. Ofiţeru

“…ABSTRACT Mathematical models can provide insights into complex interactions and dynamics within microbial communities to complement and extend experimental laboratory approaches. …”
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Performance optimization analysis of cleaning mechanism for bottom frozen sticky float coal in train body based on Edem-RecurDyn co-simulation by XIE Miao, Ll SiYao, LIU Yi, NIE RenDong, ZHANG HongYu, ZHU Yun, LIU DongXu

“…After the objective function was obtained, the mathematical model was solved by Matlab to obtain the optimal solution. …”
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Persistence and emergence of X4 virus in HIV infection by Ariel D. Weinberger, Alan S. Perelson

“…Previously, we used numerical simulations of a mathematical model to show that across much of parameter space a promising new class of antiretroviral treatments, CCR5 inhibitors, can accelerate X4 emergence and immunodeficiency. …”
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