A Mixed Project-and-Stock Portfolio Optimization Model with Mean-SemiVariance-SemiEntropy Approach by Amirhosein Khayyatian, Majid Shakhsi-Niaei

“…Traditionally, mathematical models for portfolio optimization have primarily focused on stock investments within the capital market. …”
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Spare Parts Inventory Optimization for Military Vehicles Using a Mixed Probability Distribution by Mojtaba Salehi, Mojtaba Omidvar, Shohreh Shariati

“…Design/methodology/approach: First, based on the literature review and selected basic articles, the research gaps have been identified, and accordingly, a mathematical model has been developed and solved to optimize the spare parts of military vehicles. …”
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Development of a clinical decision support tool for Primary care Management of lower Urinary tract Symptoms in men: the PriMUS study by Adrian Edwards, Ridhi Agarwal, Janine Bates, Alison Bray, Sarah Milosevic, Emma Thomas-Jones, Michael Drinnan, Marcus Drake, Peter Michell, Bethan Pell, Haroon Ahmed, Natalie Joseph-Williams, Kerenza Hood, Yemisi Takwoingi, Chris Harding

“…This required first to develop mathematical models, which combined results from several simple tests that general practitioners could organise. …”
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The modeling of LED's disposition by Jurgita Dabulytė, Feliksas Ivanauskas, Artūras Žukauskas

“…The finite difference technique was used for the discretization of mathematical model. …”
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Multi-objective optimization of the U-shaped assembly line ‎balancing and worker assignment considering setup-times ‎and workers' skill by Ali Husseinzadeh Kashan, Saeed Afkhami, Parisa Maroofkhani

“…Purpose: In this research due to the importance of the U-shaped assembly line balancing and, on the other hand, the importance of human factors and setup times, we want to develop a bi-objective mathematical model minimize the cycle time and the total cost.Methodology: Since the research problem is shown to be NP-hard, NSGA-II, which is a population-based algorithm, and also SPEA-II are used to solve the problem.Findings: A mathematical model for the problem on hand is developed. …”
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Comparative analysis of single-stage reciprocating compressor compressing different gases by A. A. Kotlov, A. B. Burakov

“…The results of comparing the results of mathematical modeling with the results of experimental studies are obtained…”
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Propeller Force-Constant Modeling for Multirotor UAVs from Experimental Estimation of Inflow Velocity by Gaurang Gupta, Shaaban Abdallah

“…In the later part, the proposed mathematical model is validated against two new sets of pairs of motor-propeller combinations. …”
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Wave processes in alternating current traction network depending on parameters of power supply system by T. V. Kovaleva, O. O. Komyakova, N. V. Pashkova

“…The article considers a mathematical model of the AC traction power supply system taking into account stationary and nonstationary wave processes. …”
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Impact Force Magnitude Analysis of an Impact Pendulum Suspended in a Vibrating Structure by R.R. Aguiar, H.I. Weber

“…Experimental data are used to validate the mathematical model. The mathematical model allows a detailed nonlinear analysis, showing the rich response of the system, which includes dynamical jumps, bifurcations and chaos. …”
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COMPUTER CALCULATIONS OF THE DYNAMICS OF THE SLAG ENTRAPPING IN GATING SYSTEM ON THE BASIS OF THE NAVJE-STOCKS EQUATIONS by F. S. Lukashevich, S. G. Lihouzov, O. I. Chichko

“…The proportion of particles, passing through the gating system in casting, is calculated by the example of different variants of gating systems by the mathematical model.…”
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Calculation of Temperature Fields and Stresses in Pipe-Lines by R. I. Esman

“…A mathematical model and a numerical solution of the problem pertaining to non-stationary temperature fields and profile temperature stresses in multi-layer heat pipelines of various application purposes are given and obtained in the paper.The developed mathematical model is applied for calculation of temperature fields and stresses in heat pipelines with the purpose of an efficient usage of heat-transfer agent power po-tential.…”
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Numerical Solution of Boundary Problem Pertaining to Two-Dimensional Temperature Pattern with Internal Heat Sources by R. I. Esman

“…The paper contains a mathematical model and a numerical solution of non-stationary heat conduction with variable heat sources that are acting during the whole hardening process. …”
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Developing and Selecting A Strategy for Interaction with Stakeholders During the Project Life Cycle in Oil Projects by Raman Rezaei

“…In the last step, the proposed mathematical model was solved using Gamz software, and the interaction strategy with stakeholders was determined. …”
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Graph Theory of Tower Tasks by Andreas M. Hinz

“…The appropriate mathematical model for the problem space of tower transformation tasks is the state graph representing positions of discs or balls and their moves. …”
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Analysis of Self-Oscillatory Movement of Bell Bowl Electric Drive by V. I. Lukovnikov, I. A. Roudchenko, N. V. Samovendiouk

“…Analytical investigation of the mathematical model has been carried out and time diagrams of bell bowl and tongue movement have been constructed.…”
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Thermodynamic analysis of expansion process of screw expander in wet steam area by A. M. Kalashnikov, G. I. Chernov, V. L. Yusha

“…During the study of the expansion process in the area of wet steam in a screw expander, a mathematical model of this process is developed. The mathematical model is verified by comparing the results obtained on its basis with the results obtained by other researchers on an identical object. …”
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CLOSED-LOOP CONTROL OF OXYGEN-CONVERTER MELTING by V. S. Bogushevsky, S. V. Zhuk, S. G. Melnik, E. N. Zubova

“…The mathematical model of Fe – C-melt decarbonization, with the assistance of the theory of critical concentrations was developed in this work. …”
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Methodology for Calculation of Pressure Impulse Distribution at Gas-Impulse Regeneration of Water Well Filters by V. V. Ivashechkin, V. V. Veremeniouk

“…The proposed calculation methodology developed on the basis of the mathematical model makes it possible to determine pressure in the impulse on a filter wall and at any point of a water well pre-filter zone.…”
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A dynamic model of CT scans for quantifying doubling time of ground glass opacities using histogram analysis by József Z. Farkas, Gary T. Smith, Glenn F. Webb

“…We quantify a recent five-category CT histogram based classification of ground glass opacities using a dynamic mathematical model for the spatial-temporal evolution of malignant nodules. …”
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Algorithm of Development for Stabilization of Socio-Ecological Situation in Karakalpakstan by Alisher Abdullaev

“…The parameters of the developed mathematical model and their adequacy are determined. The developed mathematical model will allow identification of the social and ecological situation of the republic. …”
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