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  1. No Access

    Article

    Animal Shapes, Modal Analysis, and Visualization of Motion (IV): Geometric Constructions and Implementation

    We address computer implementation and technology issues in geometric constructions for mathematical and computational modeling purposes, especially regarding 3D finite-element mesh generation for large scale ...

    **g Yang, Goong Chen, Chunqiu Wei, Alexey Sergeev in The Journal of Geometric Analysis (2023)

  2. No Access

    Article

    Animal Shapes, Modal Analysis, and Visualization of Motion (I): Horse and Camel

    Eigenfunctions and eigenvalues of physical systems and engineering structures can reveal many of the system’s fundamental features and, therefore, become a basis for the study of inverse problems. In this seri...

    Goong Chen, **gtong Huang, Chunqiu Wei, **g Yang in The Journal of Geometric Analysis (2023)

  3. No Access

    Article

    Animal Shapes, Modal Analysis, and Visualization of Motion (III): Giraffe, Duck, Goose, T-Rex Dinosaur, and the Flying Modes of Eagle

    This paper contains more varieties of animals, including the giraffe, bird species duck, goose and eagle, and the T-Rex dinosaur. They range across mammals, birds and reptiles. For each of them, we present the...

    **g Yang, Goong Chen, Chunqiu Wei, Alexey Sergeev in The Journal of Geometric Analysis (2023)

  4. No Access

    Article

    Animal Shapes, Modal Analysis, and Visualization of Motion (II): Dynamics and Fourier Decomposition

    This paper begins with solving the linear elastodynamic equation with forcing by expanding it into Fourier series. We then proceed to prove the conservation laws of momentum, angular momentum, and energy. We i...

    Goong Chen, Chunqiu Wei, Alexey Sergeev, **g Yang in The Journal of Geometric Analysis (2023)

  5. No Access

    Chapter and Conference Paper

    Online Educational Platform as a Web Content Management System in the Organization of Student-Teacher Interaction

    The ubiquity of the Internet has led to a change in the ways of knowledge transfer and communication on the Web, which have become more intensive and focused on social interactions. Educational institutions ha...

    Alexey Sergeev, Natalia Kulikova, Elena Danilchuk in Data Science and Intelligent Systems (2021)

  6. No Access

    Chapter and Conference Paper

    Algorithmization of Autonomous Landing of Unmanned Aerial Vehicles by “Flexible” Kinematic Trajectories

    The final and one of the most important stages of the aircraft-type unmanned aerial vehicles (UAV) flight is landing. In this regard, the problem of automating the control by UAV landing in difficult meteorolo...

    Alexey Sergeev, Alexander Filimonov in High-Performance Computing Systems and Tec… (2020)

  7. Article

    Open Access

    Experts’ opinion about the pediatric secondary headaches diagnostic criteria of the ICHD-3 beta

    The 2013 International Classification of Headache Disorders-3 was published in a beta version to allow clinicians to confirm the validity of the criteria or suggest improvements based on field studies. The aim...

    Aynur Özge, Ishaq Abu-Arafeh, Amy A. Gelfand in The Journal of Headache and Pain (2017)

  8. Article

    Open Access

    Experts’ opinion about the primary headache diagnostic criteria of the ICHD-3rd edition beta in children and adolescents

    The 2013 International Classification of Headache Disorders-3 (ICHD-3) was published in a beta version to allow the clinicians to confirm the validity of the criteria or to suggest improvements based on field ...

    Aynur Özge, Noemi Faedda, Ishaq Abu-Arafeh in The Journal of Headache and Pain (2017)

  9. No Access

    Chapter and Conference Paper

    Extended Viable System Model

    Viable System Model (VSM) is a well-known and widely used concept when working with enterprise as a viable system. However, research shows that VSM does not include all the required elements to correctly model...

    Alexey Sergeev, José Tribolet in Advances in Enterprise Engineering X (2016)

  10. No Access

    Chapter and Conference Paper

    Towards a Formal Approach to Solution of Ontological Competence Distribution Problem

    Competence is a well-known term in the field of enterprise engineering, however, there is very little practical application of competences found in the enterprise engineering literature. This paper proposes th...

    Alexey Sergeev, Eduard Babkin in Enterprise and Organizational Modeling and Simulation (2016)

  11. No Access

    Chapter and Conference Paper

    Towards Competence-Based Enterprise Restructuring Using Ontologies

    While knowledge of competence is of particular value to the enterprise, and notion of competence is being actively used in enterprise engineering field of research, there is a lack of practical usage of compet...

    Alexey Sergeev, Eduard Babkin in Advances in Enterprise Engineering IX (2015)

  12. No Access

    Chapter and Conference Paper

    The Comparison of the Stochastic Algorithms for the Filter Parameters Calculation

    In this article the stochastic algorithms (particle swarm algorithm, simulated annealing algorithm, and genetic selection algorithm) applied to the problem of an adaptive calculation of the low pass filter par...

    Valeriy Rogoza, Alexey Sergeev in Advances in Systems Science (2014)

  13. No Access

    Chapter and Conference Paper

    Towards Develo** a Model-Based Decision Support Method for Enterprise Restructuring

    In modern world enterprises need to be agile in their operation and structure to react to changes quickly. One of the open questions here is how to develop the enterprise, or, to be more precise, if enterprise...

    Eduard Babkin, Alexey Sergeev in Advances in Enterprise Engineering VII (2013)