Estimation level of public welfare on the basis of methods of intellectual analysis by S. Kozlovskyi, L. Nikolenko, O. Peresada, O. Pokhyliuk, O. Yatchuk, N. Bolgarova, O. Kulhanik

“…The aim of the work is to develop the mathematical model for measuring the welfare of Ukraine using methods of intellectual analysis, namely, the theory of fuzzy sets. …”
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A Mixed Integer Programming Optimization of Blood Plasma Supply Chain in the Uncertainty Conditions during COVID-19: A Real Case in Iran by Bijan Baghbani

“…To optimize the transfer rate at each level of the supply chain, a mathematical model is proposed to reduce total costs. Also, the fuzzy programming approach is used to deal with uncertainty in the parameters of the mathematical model. …”
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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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Rectangular Glass Optical Fiber for Transmitting Sunlight in a Hybrid Concentrator Photovoltaic and Daylighting System by Afshin Aslian, Kok-Keong Chong, Seyed Hassan Tavassoli, Chin-Joo Tan, Omid Badkoobe Hazave

“…The experiment results on the relative transmission in different incident angles for both round optical fibers and RGOFs have validated both the simulation and the mathematical modelling. The beam profile of our fabricated RGOF has also been measured via our laboratory facility. …”
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Species survival versus eigenvalues by Luiz Antonio Ribeiro de Santana, Yuri Dimitrov Bozhkov, Wilson Castro Ferreira

“…Mathematical models describing the behavior of hypothetical species in spatially heterogeneous environments are discussed and analyzed using the fibering method devised and developed by S. …”
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FACTOR ANALYSIS OF THE ROLLING PROCESS TECHNOLOGY (Part2) by A. N. Chichko, L. A. Fekoistova, V. I. Shcherbakov, A. V. Vedeneev

“…The mathematical model of the multivariate regression analysis carrying out is presented. …”
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Compensating Trajectory of a Kind of Long-pitch Constrained Conveyor Chain by Li Shujing, Hong Lin, Liang Yanshu

“…The conveyor chain model which include constrained and free pin is established.Through analyzing each position of pin in static and the movement velocity and displacement of pin in one period are calculated according to its coordinate.The mathematical model of each pin in the state of motion is established and the motion trajectory of free pin should include two parts because of the polygonal action of the chain is proposed.Aiming at the problem of the nonlinear equations in the mathematical model of chain is hard to calculate,a kind of solution method based on fundamental theorem of calculus is presented.Finally,motion trajectory of top and bottom edge free pin is obtained by using the MATLAB point depiction method.A computation method is provided for the analysis of trajectory constrained conveyor chain and the design of constrained trajectory.…”
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Structural Design and Experiment Analysis of a Morphing Wing Structure by Song Zhendong, Li Gang, Guo Bing

“…A morphing wing structure is proposed by using planar multi-closed loop linkage. The mathematical model of the structure is established. The mechanism trajectory is simulated and analyzed in Matlab by using the structural mathematical model. …”
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Study on the High Precision Manufacturing of the Hourglass Worm Drive Pair in the Solar Tracking System by Chen Yan, Gong Yuxia

“…The results show that the mathematical model and the 3D model are correct,as well as the manufacture method is feasible.…”
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ON APPLICATION OF ARTIFICIAL NEURAL NETWORKS FOR MODELING OF WATER CONSUMPTION by Alexander N. Salugin, Roman N. Balkushkin

“…As a rule, these parameters are random, and the mathematical models describing the water balance are stochastic. …”

Study on Tooth Profile Parameter of Gear Skiving Under the Influence of Multiple Factor by Zhongliang Qiu, Siming Wang

“…Finally， on the basis of the mathematical model， the influence of the rotational speed of tool and workpiece， tool feeding speed， helix angle of the tool and shaft angle on tooth profile deviation and tooth profile runtout are analyzed. …”
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Meshing Theory Analysis of Parallel Inclined Double Roller Enveloping Hourglass Worm Drive by Honghui Liao, Xudong Wang, Yan Qi, Zaixin Liu

“…According to the principle of single roller enveloping worm drive and spatial meshing theory， the basic mathematical model of parallel inclined double roller enveloping hourglass worm drive is constructed. …”
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Simulation of commutation process DC traction motor of quarry dump truck by V. V. Kharlamov, Yu. V. Moskalev, S. N. Naiden

“…The adequacy of the mathematical model is confirmed by comparing the degree of sparking obtained experimentally and using the proposed model. …”
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Optimization Design for Gear Pair Transmission with Considering Torsional Stiffness Constraint by Han Lin, Xu Lixin

“…Taking the gear pair transmission chain as study object,considering the mesh stiffness of gear pair & torsional stiffness of shaft,a general mathematical model for torsional stiffness of gear pair transmission chain is established. …”
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RESOURCE-SAVING TECHNOLOGY OF PRODUCTION OF ZINC ANODES FOR BRASS-PLATING OF STEEL CORD by E. I. Marukovich, E. F. Baranovskij, G. P. Korotkin, Ju. V. Petrunja

“…In the article there are examined the questions of optimization by means of mathematic modeling of the processes of blending and mixing of ceramic sialon powders, as particles sizes, their allocation and composition determine solidity and efficiency of ceramics.…”
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Flow of electrorheological fluid under conditions of slip on the boundary by R. H. W. Hoppe, M. Y. Kuzmin, W. G. Litvinov, V. G. Zvyagin

“…We study a mathematical model describing flows of electrorheological fluids. …”
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Flow of electrorheological fluid under conditions of slip on the boundary

“…<p>We study a mathematical model describing flows of electrorheological fluids. …”
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About new approaches to the solution of heat problem of chilling of 3D objects by A. N. Chichko, A. S. Borozdin

“…In this article there is examined one of the actual problems of the mathematical modelling of thermal processes ~ optimization of numerical solution of the thermal conduction equation. …”
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Stepwise fuzzy correction of the algorithm filters of random signals by A. A. Lobaty, A. S. Radkevich

“…It is assumed that the gauges are discrete and are described, like the original process assessed, by a discrete mathematical model in the form of difference equations. …”
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Dynamics Analysis of a Special Differential Gear Transmission System by Kong Guang, Meng Guangyao, Wang Zuojuan, Huang Juxin, Li Zhongzheng

“…Then,considering the road to the wheel load torque in the process of the corners to be external incentive conditions of system,the affect of internal incentive factors on vibration characteristics of this differential gear transmission system is analyzed and the dynamics mathematical model is built. At last,by calculating this mathematical model and natural frequency,the phase path analysis is carried out and the characteristic parameters of this gear transmission system are optimized. …”
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