In Situ Bioremediation of Crude Petroleum Oil Polluted Soil Using Mathematical Experimentation by Modupe Elizabeth Ojewumi, Moses Eterigho Emetere, Damilola Elizabeth Babatunde, Joshua Olusegun Okeniyi

“…Mathematical modelling of in situ (on site) bioremediation of crude petroleum polluted soil was investigated. …”
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A Novel Performance Analysis of the Microstrip Antenna Printed on a Cylindrical Body by Amr M. Mahros, Marwa M. Tharwat, Ali Elrashidi

“…In this work, we study the effect of curvature on the performance of circular patch microstrip antenna. A mathematical model for the antenna parameters as functions of curvature is also introduced. …”
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Hesitant Bipolar-Valued Fuzzy Soft Sets and Their Application in Decision Making by Jin-Ying Wang, Yan-Ping Wang, Lei Liu

“…In order to further improve the accuracy of decision making, a new mixed mathematical model, named hesitant bipolar-valued fuzzy soft set, is constructed by combining hesitant bipolar-valued fuzzy sets with soft sets. …”
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Research of the Virtual Test Method for Dynamic Load Simulation of Automatic Transmission by Zou Xihong, Gou Xun, Zheng Xiaomei, Zhao Jun

“…In order to achieve EM-CVT dynamic load simulation,the dynamic load simulation method is researched by using MATLAB/Simulink to establish the mathematical model of automatic transmission dynamic load simulation system and combining with the speed tracking control algorithm.The virtual test is carried out,which refers to a section of the NEDC city cycle,the EPA performance index is introduced to evaluate the system performance. …”
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Study on the Steady-state Temperature Field of High Speed Spur Gear with Consideration of Elastohydrodynamic Lubrication by Fang Te, Liu Shaojun

“…Aiming at the real meshing state of high speed spur gear,the calculation mathematical model of line contact elastohydrodynamic lubrication is established,the model including Reynolds,elasticity and load balance equations etc. …”
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MODELING AND ANALYSIS OF THE LIMIT BENDING-RADIUS FOR STRAIGHTENING A THIN-WALLED TUBE WITH EQUAL CURVATURE by ZHANG ZiQian, YAN YunHui, YANG HuiLin, WANG Lei

“…The limit bending-radius as the main straightening technical parameter,decides the structure of equipment and the quality of products for straightening thin-walled tubes with equal curvature,however,it is usually carried out based on the experiential data and chart by skilled labourers,whose art is based on long experience and experiments,the special mathematical model of the limit bending-radius is immediately necessary. …”
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Liquid Sloshing in a Horizontal Circular Container with Eccentric Tube under External Excitation by Mohammad Nezami, Mohammad Mehdi Mohammadi, Atta Oveisi

“…Appropriate conformal mapping transformation in combination with the linear potential theory is employed to develop mathematical model for two-dimensional sloshing in horizontal circular cylindrical containers with overall eccentric hole. …”
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Research and Design of RU Type and YU Type Pulley Cutter Tooth Profile of Engine Timing System by Jianhua Guo, Zhenzhen Hu, Yizhen Wu, Junpeng Hou, Hongyuan Jiang

“…Firstly, the conjugate tool tooth surface of the pulley tooth profile is enveloped based on the meshing principle, and the discrete data of the envelope curve is mathematically fitted to determine the mathematical model of the cutter tooth profile. Secondly, through the second enveloping process of the cutter on the pulley, it is found that there is an undercut at the top of the tooth profile of the processed pulley tooth profile. …”
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Probabilistic analysis of getting into in restricted area by unmanned aerial vehical by A. A. Lobaty, Y. F. Yatsyna, V. Y. Stepanov, A. Y. Bumai

“…The substantiation of the mathematical model to research through linearized vector stochastic equation is carried out. …”
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Orientational Capability Analysis of a 2UPR-SPR Parallel Manipulator by Che Linxian, Zhang Rong, Zhang Caifang, Wang Taofen

“…The tilt-and-torsion angle with zero-torsion is used to descript the orientation of moving platform, and the mathematical model is constructed to solve the inverse displacement of the mechanism. …”
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Modeling Wettability Variation during Long-Term Water Flooding by Renyi Cao, Changwei Sun, Y. Zee Ma

“…This paper summarizes the mechanism of wettability variation and characterizes the adsorption of polar substance during long-term water flooding from injecting water or aquifer and relates the residual oil saturation and relative permeability to the polar substance adsorbed on clay and pore volumes of flooding water. A mathematical model is presented to simulate the long-term water flooding and the model is validated with experimental results. …”
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Optimal control analysis of malaria-schistosomiasis co-infection dynamics by Kazeem Oare Okosun, Robert Smith?

“…This paper presents a mathematical model for malaria-schistosom-iasis co-infection in order to investigate their synergistic relationship in the presence of treatment. …”
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Modeling diseases with latency and relapse by P. van den Driessche, Lin Wang, Xingfu Zou

“…A general mathematical model for a disease with an exposed(latent) period and relapse is proposed. …”
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Effects of the Hot Alignment of a Power Unit on Oil-Whip Instability Phenomena by A. Vania, P. Pennacchi

“…By including these bearing coefficients in a mathematical model of the fully assembled machine, the real part of the eigenvalue associated with the first balance resonance of the generator rotor became positive. …”
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Dynamic Balance Optimization of an Ultra High-speed Packaging Machine based on a Micro Multi-objective Genetic Algorithm by Hu Bo, Chen Guochun, Li Huijie, Zhou Changjiang

“…The equations of shake force and torque are derived by building a mathematical model for the components. Taking the root-mean-square of shake force and torque into account,dynamic balance of the components with variables of mass and barycentre location is optimized based on a micro multi-objective genetic algorithm. …”
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Research on Flow Regime Hydraulics of Sluice-Passing Flows in Reconstruction Design of Large Sluice in Meandering River Channels by ZHANG Zhouwen

“…Large sluices in meandering river channels have large sluice-passing flow rates and turbulent flow regimes during floods,and downstream energy dissipaters of the sluice cannot be easily repaired once they are damaged by erosion.Taking the reconstruction of the Jimei Sluice as a research project,this paper tries to solve the problem that how to make the reconstructed sluice avoid the large scour pit that has a size of 50 000 m² and a maximum depth of 23 m and is formed by the erosion of current downstream stilling pools.In addition,the paper uses the technical route of changing the layout of the sluice opening and the angle between the sluice axis and the river channel centerline and establishes a two-dimensional hydrodynamic mathematical model to analyze the water level,sluice-passing flow regimes,and erosion.The results of the comparison find that the angle between the sluice axis and the river channel centerline is 88° (rotating counterclockwise by 2°),and the full-depth sluice scheme is suitable.The research ideas and methods can provide a reference for similar projects.…”
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Multi-objective Optimization Design of Wet Friction Clutches by Jiang Kai, Li Hua, Chen Si, Li Shilei, Ren Rongzhi

“…The minimum drag torque and maximum engagement torque are the optimization objectives, the mathematical model of the optimization design is established, and the solution method of the optimization toolbox of Matlab is given. …”
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Methods Dealing with Complexity in Selecting Joint Venture Contractors for Large-Scale Infrastructure Projects by Ru Liang, Zhaohan Sheng, Xiangyu Wang

“…This paper is to study how to select joint venture contractors for undertaking large-scale infrastructure projects based on a multiattribute mathematical model. Two different methods are developed to solve the problem. …”
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Research on NC Machining Method of Face Gear in High Speed Milling by Xingzu Ming, Hongyang Wang, Jinwei Shen, Lei Jin, Rui Ming

“…According to the principle of differential geometry and the theory of gear meshing， and with CNC milling machine high speed milling machined face gear as the research object， the mathematical model of straight tooth face gear is established. …”
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Natural Frequncies of Coupled Blade-Bending and Shaft-Torsional Vibrations by B.O. Al-Bedoor

“…In this study, the coupled shaft-torsional and blade-bending natural frequencies are investigated using a reduced order mathematical model. The system-coupled model is developed using the Lagrangian approach in conjunction with the assumed modes method to discretize the blade bending deflection. …”
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