On the existence of global solution of the system of equations of liquid movement in porous medium [PDF]
E3S Web of Conferences, 2021 The initial-boundary value problem for the system of one-dimensional isothermal motion of viscous liquid in deformable viscous porous medium is considered. Local theorem of existence and uniqueness of problem is proved in case of compressible liquid.
Tokareva Margarita, Papin Alexander
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Project-based learning in training IT-personnel for the digital economy [PDF]
E3S Web of Conferences, 2023 The purpose of the study is to modernize IT personnel training to enhance the development of the digital economy by means of project-based learning methods. The objectives of the study are to harmonize the educational process with the needs of production
Balandin Dmitry +2 more
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Nonlinear Parabolic Variational Inequalities with Variable Time-Delay in Time Unbounded Domains
Journal of Optimization, Differential Equations and Their Applications, 2023 We research the well-posedness of the problem without initial condition for nonlinear parabolic variational inequalities with variable time-delay. To justify our results, we impose some assumptions on the solution behavior and growth of the data-in as ...
Mykola M. Bokalo +2 more
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Placement of Multiple Virtual Objects in Physical Space in Augmented Reality Applications
Advanced Engineering Research, 2023 Introduction. The challenges of placing virtual objects in a real-world environment limit the potential of augmented reality (AR) technology. This situation identifies a gap in scientific knowledge that requires additional research.
M. V. Alpatova, Yu. V. Rudyak
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Nova Scientia, 2022 The COVID-19 pandemic has motivated a resurgence in the use of phenomenological growth models for predicting the early dynamics of infectious diseases.
María Teresa Pérez Maldonado +3 more
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Equations to Predict Growth Performance Changes by Dietary Deoxynivalenol in Pigs
Toxins, 2021 The objectives of the present work were to assess the accuracy of previously published equations for predicting effects of deoxynivalenol (DON) on the growth performance changes of pigs and to update equations based on recently published data. A total of
Jongkeon Kim +3 more
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Estimation of the external quality characteristics of goose eggs of known breadth and length
Veterinární Medicína, 2021 In this study, we investigated whether the mathematical formulas, which generally reveal the external quality characteristics of living organisms, yield the correct results in goose eggs.
O Karabulut
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Three-Bar structure optimality criterion using the linear resizing rule
Revista Facultad de Ingeniería Universidad de Antioquia, 2021 The static analysis of the indeterminate three-bar structure is developed using the Castigliano's first theorem, taking the lengths and inclination angles as variables. Some reductions are applied in the resulting set of equations to approximate them to
José Alfredo Ramírez-Monares +1 more
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On certain equations and inequalities involving the arithmetical functions φ(n) and d(n) – II [PDF]
Notes on Number Theory and Discrete Mathematics, 2023 In papers [3] and [5] we have studied certain equations and inequalities involving the arithmetical functions φ(n) and d(n). In this paper we will consider some other equations. Some open problems will be stated, too.
József Sándor
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AN INVESTIGATION OF STUDENTS’ ALGEBRAIC PROFICIENCY FROM A STRUCTURE SENSE PERSPECTIVE
Journal on Mathematics Education, 2021 Structure sense can be interpreted as an intuitive ability towards symbolic expressions, including skills to perceive, to interpret, and to manipulate symbols in different roles.
Al Jupri, Ririn Sispiyati, Kin Eng Chin
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