Nonlinear versus Ordinary Adaptive Control of Continuous Stirred-Tank Reactor by Jiri Vojtesek, Petr Dostal

“…Proposed controller is tested by the simulations on the mathematical model of the continuous stirred-tank reactor with cooling in the jacket as a typical nonlinear system.…”
Get full text

Optimal design for parameter estimation in EEG problems in a 3D multilayered domain by H. T. Banks, D. Rubio, N. Saintier, M. I. Troparevsky

“…Many inverse problems consist in selecting best parameter values of a given mathematical model based on fits to measured data. These are usually formulated as optimization problems and the accuracy of their solutions depends not only on the chosen optimization scheme but also on the given data.We consider an electromagnetic interrogation problem, specifically one arising in an electroencephalography (EEG) problem, of finding optimal number and locations for sensors for source identification in a 3D unit sphere from data on its boundary. …”
Get full text

Intelligent Controller Design for Quad-Rotor Stabilization in Presence of Parameter Variations by Oualid Doukhi, Abdur Razzaq Fayjie, Deok Jin Lee

“…The paper presents the mathematical model of a quadrotor unmanned aerial vehicle (UAV) and the design of robust Self-Tuning PID controller based on fuzzy logic, which offers several advantages over certain types of conventional control methods, specifically in dealing with highly nonlinear systems and parameter uncertainty. …”
Get full text

Design and Research of the Gear Modification of Wind Turbine Gearbox by Chen Fangming, Wan Qingliang

“…The helix line modification of pinion is determined by the analysis of the deformation of the pinion,through the mathematical modeling of gear dynamics,a theoretical basis for transmission error is provided.The gear modification of output gear of a 2 MW wind turbine gearbox is carried out. …”
Get full text

Numerical Simulation of a One-Dimensional Water-Quality Model in a Stream Using a Saulyev Technique with Quadratic Interpolated Initial-Boundary Conditions by Pawarisa Samalerk, Nopparat Pochai

“…The one-dimensional advection-diffusion-reaction equation is a mathematical model describing transport and diffusion problems such as pollutants and suspended matter in a stream or canal. …”
Get full text

RP-Ring: A Heterogeneous Multi-FPGA Accelerator by Shuaizhi Guo, Tianqi Wang, Linfeng Tao, Teng Tian, Zikun Xiang, Xi Jin

“…In order to avoid overall performance loss caused by the slowest board, we build a mathematical model to decompose workload among FPGAs. The dividing of workload is based on the logic resource, memory access bandwidth, and communication bandwidth of each FPGA chip. …”
Get full text

Parameter Optimization of Traffic Cone Recycling Manipulator by Li Yushan, Liu yang, Lü Antao

“…Considering reducing occupation space,main arm rotation angle and peak horizontal acceleration as the optimization targets,the mathematical model is established. By using MATLAB,the main arm rotation angle,main arm,deputy arm horizontal angle and gear transmission ratio are optimized. …”
Get full text

Fuzzy Sliding Mode Control Method for AUV Buoyancy Regulation System by Wende Zhao, Decheng Wang, Zhenzhong Chu, Mingjun Zhang

“…In this paper, a fuzzy sliding mode control scheme is developed for the buoyancy regulation system to solve the abovementioned problems. At first, a mathematical model of the buoyancy regulation system is established, and the stability of the system is analyzed. …”
Get full text

Analysis of the structural integrity of a frozen wall during a mine shaft excavation using temperature monitoring data by Lev Levin, Mikhail Semin, Ivan Golovatyi

“…The data on temperature measurements in control-thermal boreholes were used to parameterize the mathematical model of heat transfer, which allowed for the reconstruction of the temperature field throughout the entire cooled and frozen soil volume. …”
Get full text

The Effect of Continuous and Pulse Input Nutrient on a Lake Model by Yongfeng Li, Dongliang Xie, Jing-An Cui

“…In an aquatic environment, a mathematical model consisting of nutrient, phytoplankton, and zooplankton has been considered, where excretion of zooplankton is considered as one of the sources of nutrient. …”
Get full text

Features of financial integration of the Eurasian Economic Union member states by B. G. Khairov, V. A. Kovalev, R. Kh. Khasanov

“…The authors use content analysis of regulatory acts and open information materials on mutual financial flows of Eurasian Economic Union member states, analysis of discrete institutional alternatives, mathematical modeling, etc. Based on the analysis carried out in the work, a list of proposals for further progressive development of integration processes in the Eurasian Economic Union was formulated. …”
Get full text

A Fractional-Order Investigation of Vaccinated SARS-CoV-2 Epidemic Model with Caputo Fractional Derivative by Badr Saad T. Alkahtani

“…The SARS-CoV-2 fractional mathematical model is analyzed for series-type solution by Laplace–Adomian decomposition techniques (LADM) and homotopy perturbation method (HPM). …”
Get full text

RESEARCH ON FUZZY CONTROL SIMULATION OF CVT RATIO BASED ON ENGINE SPEED REGULATION CHARACTERISTICS by GUO Wei, JIA GaoXiang, ZHANG Wu, CHEN Ya

“…The power transmission system is simplified into a double rotating mass model. Through mathematical model of the whole vehicle,the physical model is established by using Simulink,and a speed ratio fuzzy control method based on the speed regulation characteristic of engine is proposed,then the starting condition,braking condition and circulating condition are simulated respectively. …”
Get full text

IMPACT ANALYSIS OF IMPELLER PARAMETERS ON THE WIND-ENERGY UTILIZATION COEFFICIENT OF VERTICAL AXIS WIND TURBINE by HU Cao Di, WANG ChangLu, WEI LeYu, QIAO XueTao

“…In order to have a better research on the effect factors of the vertical axis wind turbine wind-energy utilization coefficient,based on the multi-blade element momentum theory a Double Disk Multi-tube Model was established,and through mathematical modeling method to focus on the influence of chord length,radius and number of blades. …”
Get full text

An experimental approach to a variable-period damped oscillatory system similar to a bouncing ball and an adaptation to an electromagnetic brake by Tiago S. Pacheco, Edinei C. Paiva, Sebastião B. Amorim

“…The problem of a ball bouncing in n-hops, despite being a problem extremely easy to observe, is a problem treated by classical mechanics and which, to this day, is without an analytical solution, due to its complexity of mathematical modeling. In this work, we present and discuss experimental measurements for a damped mechanical oscillator that has characteristics identical to the problem of bouncing a ball performing n-hops. …”
Get full text

Modeling Peer-to-Peer Botnet on Scale-Free Network by Liping Feng, Hongbin Wang, Qi Han, Qingshan Zhao, Lipeng Song

“…To prevent effectively P2P botnet, in this paper, a mathematical model which combines the scale-free trait of Internet with the formation of P2P botnet is presented. …”
Get full text

Multi-criteria path rationalization in the conditions of multi-type passenger transport systems by V. V. Egorov

“…The author carried out the research by means of mathematical modeling of the transport system in the form of its deterministic graph model. …”
Get full text

Switched Exponential State Estimation and Robust Stability for Interval Neural Networks with Discrete and Distributed Time Delays by Hongwen Xu, Huaiqin Wu, Ning Li

“…Firstly, by combining the theories of the switched systems and the interval neural networks, the mathematical model of the switched interval neural networks with discrete and distributed time delays and the interval estimation error system are established. …”
Get full text

Dynamics Analysis and Chaos Control of Multi-nonlinear Coupling System for PMSM-2R Mechanism by Cao Shulei Xie Jin Ding Weigao

“…Based on bond graph, a modern modeling method for multi-energy domain coupling system, a mathematical model of multi-nonlinear coupling system of PMSM-2R mechanism is established and solved by Runge-Kutta method. …”
Get full text

Mathematical analysis and simulations involving chemotherapy and surgeryon large human tumours under a suitable cell-kill functional response by Diego Samuel Rodrigues, Paulo Fernando de Arruda Mancera

“…Dosage and frequency of treatment schedulesare important for successful chemotherapy.However, in this work we argue that cell-kill response and tumoralgrowth should not be seen as separate and therefore are essential in a mathematical cancer model.This paper presents a mathematical model for sequencing of cancer chemotherapy andsurgery. …”
Get full text