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CIMS 2024 Autumnal

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Aerospace vehiclesDesign and Optimization of a Hybrid Gas Generator for Hydrogen Peroxide Tank Pressurization

Design and Optimization of a Hybrid Gas Generator for Hydrogen Peroxide Tank Pressurization

Design and Optimization of a Hybrid Gas Generator for Hydrogen Peroxide Tank Pressurization Mykhailo Vorobei ORCID: https://orcid.org/0009-0009-9173-8564 Oles Honchar Dnipro National University Mykola Bondarenko ORCID: https://orcid.org/0009-0008-8421-8408 Oles Honchar Dnipro National University Purpose. This study develops a pressurization system for hydrogen peroxide tanks using a hybrid gas generator powered by liquid oxygen and solid fuel. The system aims to improve hybrid rocket engine efficiency and reliability by stabilizing oxidizer tank pressure. Applications in space and defense are considered, where performance and …

Project Management and LeadershipEvolution of Multiple Launch Rocket Systems from Early Rockets to HIMARS and Beyond

Evolution of Multiple Launch Rocket Systems from Early Rockets to HIMARS and Beyond

Evolution of Multiple Launch Rocket Systems from Early Rockets to HIMARS and Beyond Mykola Bondarenko ORCID: https://orcid.org/0009-0008-8421-8408 Oles Honchar Dnipro National University Volodymyr Habrinets ORCID: https://orcid.org/0000-0002-6115-7162 Oles Honchar Dnipro National University Mykhailo Vorobei ORCID: https://orcid.org/0009-0009-9173-8564 Oles Honchar Dnipro National University Purpose. The article examines the evolution of multiple launch rocket systems, from early projectiles to HIMARS, and explores their future development. It focuses on HIMARS’ technical advantages and its impact on combat tactics. Design / Method / Approach. The study …

Project Management and LeadershipLeadership models in managing cross-cultural teams

Leadership models in managing cross-cultural teams

Leadership models in managing cross-cultural teams Sofiia Salamanina ORCID: https://orcid.org/0009-0006-3915-9205 Oles Honchar Dnipro National University Hanna Niameshchuk ORCID: https://orcid.org/0000-0003-3199-8988 Oles Honchar Dnipro National University Purpose. This article examines leadership models and strategies for managing cross-cultural teams. It focuses on leaders’ behavioural priorities, such as task orientation, relationships, and shared leadership, and how cultural differences impact the effectiveness of formal and informal leaders. The need for an integrative leadership approach is emphasized in the context of globalisation and cross-cultural teams. Design …

Innovative Technologies in Mechanical EngineeringConcept of Data Model for Structural Elements in Applied Mechanics

Concept of Data Model for Structural Elements in Applied Mechanics

Concept of Data Model for Structural Elements in Applied Mechanics Oleh Yushkevych ORCID: https://orcid.org/0000-0002-7199-8424 Oles Honchar Dnipro National University Purpose. To create the concept of a model of analytical and mathematical representation of structural elements in the space of quality indicators of steel grades. Design / Method / Approach. A theoreticalanalytical approach is applied to the creation of a concept for solving the problem of forming a mathematical model of the data structure. Findings. Definitions of training sampling in non-traditional …

Control Systems, Telecommunications and NavigationIntegration of Non-Stationary Optimal Control Systems with Delay and an Unstable Spectrum

Integration of Non-Stationary Optimal Control Systems with Delay and an Unstable Spectrum

Integration of Non-Stationary Optimal Control Systems with Delay and an Unstable Spectrum Petro Samusenko ORCID: https://orcid.org/0000-0002-4241-6173 National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” Tetiana Novik ORCID: https://orcid.org/0009-0003-3146-6292 National Aviation University Mykola Rashevskyi ORCID: https://orcid.org/0000-0003-1136-2691 National Aviation University Purpose. We considered a non-stationary optimal control system with delay. Non-stationary optimal control systems are described by systems of differential or differential-algebraic equations. Variable coefficients do not allow, in general, to construct a solution to such systems in quadratures. Numerical …

Project Management and LeadershipTraining convolutional neural network models for object, scene and context recognition in images

Training convolutional neural network models for object, scene and context recognition in images

Training convolutional neural network models for object, scene and context recognition in images Roman Orlov ORCID: https://orcid.org/0009-0001-2576-8513 Private Higher Educational Institution Kharkiv University of Technology “STEP” Serhii Taboranskiy ORCID: https://orcid.org/0009-0009-8349-8644 Private Higher Educational Institution Kharkiv University of Technology “STEP” Purpose. The study focuses on developing an optimized convolutional neural network (CNN) for detecting objects, scenes, and contexts in diverse images. It emphasizes improving the architecture, training methods, and performance of CNNs in computer vision tasks, which are essential for various …