Newsboy problem with outsourcing, limited capacity and resalable return by Arezoo Khazaei, Parvaneh Samouei

“…In this article has tried, in order to make the problem more in line with the real world some limitations during production, such as outsourcing mode, capacity limit and returned goods, have been added to the problem.Methodology: This research is based on library studies and the development of mathematical modeling.Findings: In the newsboy problem, there are important parameters such as outsourcing, capacity constraints and product referral which in this study, the effect of each of these parameters on profitability has been evaluated.Originality/Value: Development of the newsboy problem in terms of outsourcing and returned products and capacity constraints.…”
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Optimal control applied to vaccination and treatmentstrategies for various epidemiological models by Holly Gaff, Elsa Schaefer

“…Mathematical models provide a powerful tool for investigating thedynamics and control of infectious diseases, but quantifying theunderlying epidemic structure can be challenging especially for newand under-studied diseases.Variations of standard SIR, SIRS, and SEIR epidemiologicalmodels are considered to determine the sensitivity of these models tovarious parameter values that may not be fully known when the models areused to investigate emerging diseases. …”
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Hidden Markov models and neural networks in formation of investment portfolio by P.A. Novikov, R.R. Valiev

“…Common mathematical models are used by investors for prediction of the future state of the financial market lose if the macroeconomic situation gets worse. …”
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ANALYSIS OF BULK TEMPERATURE FIELD OF CONSTANTLY NO CLEARANCE PRECISION STEEL BALL TRANSMISSION by HONG Cheng, AN ZiJun, XIA JingQi, WANG Ge

“…On the basis of heat transfer theory,the bulk temperature field of constantly no clearance precision steel ball transmission is studied and the formulas of relative sliding velocity,maximum contact stress,and friction coefficient are derived.Meantime,the mathematical models of heat flux of engagement pairs and convention heat transfer coefficient of each region are established. …”
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Tumor cells proliferation and migration under the influence of their microenvironment by Avner Friedman, Yangjin Kim

“…It is well known that tumor microenvironment affects tumor growth and metastasis:Tumor cells may proliferate at different rates and migrate indifferent patterns depending on the microenvironment in which they are embedded.There is a huge literature that deals with mathematical models oftumor growth and proliferation, in both the avascular andvascular phases. …”
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Immunotherapy: An Optimal Control Theory Approach by K. Renee Fister, Jennifer Hughes Donnelly

“…We investigate mathematical models for the dynamics between tumor cells, immune-effector cells, and cytokine interleukin-2 (IL-2). …”
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VECTOR DATA DIFFERENCES IDENTIFICATION IN THE THEMATIC PROCESSING OF SPACE IMAGES by A. A. Zalatoi, A. V. Urbanovich

“…Research and development is done by mathematical modeling of the task in MATLAB. The article provides developed method for solving the task and results of its application for finding differences between two vector data packages, obtained from the target information of remote sensing of the Earth, and/or vector layers of digital district map. …”
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A Beginner's Guide to Water Management—Water Clarity by Florida LAKEWATCH, Mark Hoyer

“…Topics range from how we measure water clarity, what affects it, the relationship between water clarity and biological productivity, and techniques used for managing water clarity in lakes. Mathematical models are introduced as a way of predicting water clarity in lakes. …”
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An optimal adaptive time-stepping scheme for solving reaction-diffusion-chemotaxis systems by Chichia Chiu, Jui-Ling Yu

“…Reaction-diffusion-chemotaxis systems have proven to be fairlyaccurate mathematical models for many pattern formation problems in chemistryand biology. …”
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Effect of Intelligent Reflecting Surface on WSN Communication With Access Points Configuration by Mahmoud Z. Iskandarani

“…Several simulation runs are carried out, in order to show effect of geometrical distribution of WSN sensor nodes, access points, and IRS, with averaging at the end to obtain an overall comparison between direct and indirect communication paths, and to enable mathematical modeling, as random distribution is introduced in the simulation. …”
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Foundations of radar synthesis theory of phantom objects formation in SAR images by Volodymyr Pavlikov, Simeon Zhyla, Pavlo Pozdniakov, Denys Kolesnikov, Hlib Cherepnin, Olexandr Shmatko, Oleksii Odokiienko, Pavlo Malashta, Eduard Tserne

“…The results obtained are the foundation for further research, which should be directed toward the development of mathematical models of the aerospace remote sensing system orbits, spatial and temporal signals emitted by the remote sensing radio systems from aerospace carriers, and formalization of the features of the underlying surface in the “SAR-PhR” system.…”
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A Study of the Occurrence of Resonance under the Influence of Dynamic Forces on the Structural Elements of Electrical Installations by Y. V. Potachits

“…The article describes the methods of mathematical modeling and computational experiment for analyzing the parameters of the electro-dynamic stability of the main structural elements which are determined using coefficients that depend on the natural frequencies of oscillations and the nature of changes in dynamic forces over time. …”
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A toxin-mediated size-structured population model: Finite difference approximation and well-posedness by Qihua Huang, Hao Wang

“…The question of the effects of environmental toxins on ecological communities is of great interest from both environmental and conservational points of view. Mathematical models have been applied increasingly to predict the effects of toxins on a variety of ecological processes. …”
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Periodic cooking of eggs by Emilia Di Lorenzo, Francesca Romano, Lidia Ciriaco, Nunzia Iaccarino, Luana Izzo, Antonio Randazzo, Pellegrino Musto, Ernesto Di Maio

“…In the present article, we find that it is possible to cook albumen and yolk at two temperatures without separation by using periodic boundary conditions in the energy transport problem. Through mathematical modeling and subsequent simulation, we are able to design the novel cooking method, namely periodic cooking. …”
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Simulation and Evaluation of Sponge City Reconstruction Effect in Urban Drainage Residential Area by YU Haijun, FAN Yuyan, CAO Daling, CHEN Wei

“…Drainage effect evaluation is a necessary links in the construction of Sponge City,and urban rainfall mathematical models are important supporting tools for the evaluation work.Taking a residential area in Beijing City as an example,a refined drainage model of the study area was constructed based on a coupled 1D and 2D hydrodynamic model for urban rainstorms,and the drainage situation before and after the sponge transformation of the drainage system were simulated and analyzed.The results showed that the constructed model can well reflect the real drainage situation of the community,and the proposed drainage system upgrade plan can effectively improve the drainage capacity in the area,and the overflow and submergence were significantly reduced.The research can provide some technical reference for the simulation of the hydraulic condition of drainage community and the construction and management of Sponge City.…”
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An Aggregating Prediction Model for Management Decision Analysis by Jianhong Guo, Che-Jung Chang, Yingyi Huang, Xiaotian Zhang

“…In this context, insufficient information may lead to an overfitting phenomenon in general mathematical modeling methods, making it difficult to ensure good analytical performance. …”
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A Survey of Matrix Completion Methods for Recommendation Systems by Andy Ramlatchan, Mengyun Yang, Quan Liu, Min Li, Jianxin Wang, Yaohang Li

“…We focus on the mathematical models for matrix completion and the corresponding computational algorithms as well as their characteristics and potential issues. …”
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Numerical Treatment of a Modified MacCormack Scheme in a Nondimensional Form of the Water Quality Models in a Nonuniform Flow Stream by Nopparat Pochai

“…Two mathematical models are used to simulate water quality in a nonuniform flow stream. …”
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From the Editors by Yang Kuang, Ying-Cheng Lai, Zhiming Zheng

“…The predominant approach of conducting timely and in-depth scientic research is forever changed from cycles of simple experiment and theory to cycles thatcombine of experiment, theory, mathematical modeling, and analysis. The landscape of science is now clearly dominated by the peaks of biosciences. …”
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Towards gender-responsive transport planning: A case study of suburban passenger travel by Yurii Davidich, Andrii Galkin

“…The research culminates in the development of mathematical models to predict the proportion of male and female passengers opting for specific transport modes, offering valuable insights for transport planners and policymakers. …”
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