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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A profit maximization model for sustainable inventory under preservation technology and linear time-dependent holding cost by - Aashish, Pavan Kumar

“…In addition, a mathematical model is constructed to maximize the total profit function and the concavity is shown using three-dimensional graph. …”
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Working Condition Analysis Method of the Gear Pair of Recirculating Ball Variable Ratio Steering by Ke Shanle, Gu Zhiqiang, Niu Ziru, Li Gangyan

“…In order to reflect the actual working conditions of the gear pair in the steering gear accurately,the mathematical model of the steering system is established,and the calculating formulas of the pitman arm moment and the steering nut displacement are given. …”
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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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A Multiscale Fractal Approach for Determining Cushioning Curves of Low-Density Polymer Foams by Mariela C. Bravo-Sánchez, Luis M. Palacios-Pineda, José L. Gómez-Color, Oscar Martínez-Romero, Imperio A. Perales-Martínez, Daniel Olvera-Trejo, Jorge A. Estrada-Díaz, Alex Elías-Zúñiga

“…To assess the accuracy of the mathematical model, we performed impact tests considering eight dropping heights and two plate weights. …”
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Performance Modelling of Dual Air/Water Collector in Solar Water and Space Heating Application by Viacheslav Shemelin, Tomas Matuska

“…In the present work, the detailed mathematical model of a dual air/water solar collector (DAWC) has been developed and experimentally verified. …”
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Deep Reinforcement Learning-based Trajectory Planning for Manipulator Obstacle Avoidance by Cao Yi, Guo Yinhui, Li Lei, Zhu Baiyu, Zhao Zhihua

“…Firstly, based on the mathematical model of the manipulator and the motion environment, the DOBOT robot and the operating environment are built in PyBullet, and the parameters such as the reward function, the action and the state variables required for DRL are set. …”
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Analysis and Optimization of Tooth Surface Contact Parameter of ZC1 Worm Gear by Song Lijuan, Ji Weixi, Xie Jian, Wang Yu

“…Based on the meshing theory of ZC1 worm gear pair,the tooth surface contact parameters are analyzed by using MATLAB.The results show that the axial module,center distance,lead angle,radius of arc tooth profile of grinding wheel have great influence on tooth surface contact parameters.In general,the center distance is selected in the beginning of design,so the axial module,lead angle,radius of arc tooth profile of grinding wheel are selected as design variable.For improving the meshing performance of worm gear pair,taking the induced normal curvature and lubrication angle as objective function,and combining with the constraints of top thickness of worm,top thickness of worm wheel and undercutting,the optimum mathematical model is established.The improved particle swarm algorithm is adopted as optimization algorithm and the results show that the optimized lubrication angle is larger and induced normal curvature is smaller.The meshing performance of worm gear pair is improved effectively.…”
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Two-step skeletization of binary images based on the Zhang-Suen model and the producing mask by J., Ma, V. Yu. Tsviatkou, V. K. Kanapelka

“…To overcome them, a mathematical model that compensates the Zhang-Suen algorithm has proposed in this paper, along with a producing mask and two logical conditions for evaluating its elements.…”
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Segment search for local extremums of images based on the analysis of brightness of adjacent homogeneous areas by V. Yu. Tsviatkou, Anh Tuan Nguyen

“…Morphological search algorithms provide the selection of non-strict extremes, but have a high computational complexity. A mathematical model and an algorithm based on the brightness analysis of adjacent homogeneous regions are proposed to isolate strict and non-strict local extremes of images with low computational complexity. …”
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Modeling of Random Delays in Networked Control Systems by Yuan Ge, Qigong Chen, Ming Jiang, Yiqing Huang

“…In order to compensate for random delays which may lead to performance degradation and instability of NCSs, it is necessary to establish the mathematical model of random delays before compensation. …”
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Bioeconomic-Epidemiological Model of Scomber colias Population in the Moroccan Coasts by Nossaiba Baba, Imane Agmour, Yousef El Foutayeni, Naceur Achtaich

“…In this paper, we develop and study a mathematical model for the dynamics of Scomber colias and Thunnus thynnus prey-predator with parasitic helminths. …”
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Numerical Simulation of Unsteady-State Flow in Dual Porous Coalbed Methane Horizontal Wells with Complex Boundary Conditions by Cheng-yong Li, Jun Zhou, Xiang-yi Yi, Yi Luo, Ping-zhi Gong

“…The bottom-hole pressure response which can reflect the gas flow characteristics is important to study. A mathematical model for description of gas from porous coalbed methane (CBM) reservoirs with complex boundary conditions flowing into horizontal wells has been developed. …”
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Parachute-Payload System Flight Dynamics and Trajectory Simulation by Giorgio Guglieri

“…The results presented for a realistic case study define the sensitivity of the simulation outputs to the functional complexity of the mathematical model. Far from being an absolute address for the software designer, this paper tries to contribute to the area of interest with some technical considerations and clarifications.…”
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Computer Vision Technologies in Controlling the Electric Drive of Railway Transport by Yaroslav Kyrylenko, Yurij Kutovoj, Tatiana Kunchenko, Oleksandr Nesterenko

“…The novelty of the proposed work consists in development of a mathematical model and a study of the automatic speed control, depending on the curvature of the track or in the presence of obstacles, and track defects, as well as measuring the linear speed of the railway transport as one of the main elements of the slip protection system and the system for implementing the maximum traction force. …”
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Flight Stability of Canard-Guided Dual-Spin Projectiles with Angular Rate Loops by Qiushi Zheng, Zhiming Zhou

“…Firstly, the concept of the dual-spin projectile is introduced. Secondly, the mathematical model of the dual-spin projectile is established, and the angular motion equation is finally obtained by using some linearized assumptions. …”
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Structure Design and Analysis of a New Kind of Composite Climbing-ladder Wheelchair by Gen Xiong, Hua Zhang, Yilin Zhou, Shuai You, Zhijun Shang

“…On the basis of comparing the structural characteristics of the existing climbing wheelchair， the scheme of designing a new type wheelchair robot with a combination of with the planet wheel and track is introduced， and its operating principle is analyzed， a mathematical model is established to make a kinematics and dynamics analysis on the stair-climbing process. …”
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Analysis of Sliding Characteristic of Traction Drive Reducer for Automotive In-wheel Motor by Shu Hongyu, Yao Zejie

“…To analyze the sliding characteristic of the traction drive reducer for the automotive in-wheel motor,the working mechanism is researched. Then,a mathematical model and an analysis method are proposed to accurately calculate the sliding characteristics combined with the elastohydrodynamic lubrication（ EHL） theory. …”
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A Decoupling Control Method for Shunt Hybrid Active Power Filter Based on Generalized Inverse System by Xin Li, Bo Li

“…Based on the analysis of operation principle, the mathematical model of SHAPF is firstly built, which is verified to be invertible using interactor algorithm; then the generalized inverse system of SHAPF is obtained to connect in series with the original system so that the composite system is decoupled under the generalized inverse system theory. …”
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Design and Analysis of Closed-Linked Eight-Link Foot Robot with Composite Hinges by Hao Zhang, Jianjun Qin, Xingjie Liu, Lei Jiang

“…In view of the complexity of parameters and modeling stratification of the eight-link robot leg configuration mathematical model，a simplest eight-link leg mechanism with composite hinges is proposed. …”
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