Evolution of Multiple Launch Rocket Systems from Early Rockets to HIMARS and Beyond by Mykola Bondarenko, Volodymyr Habrinets, Mykhailo Vorobei

“…The article examines the evolution of multiple launch rocket systems, from early projectiles to HIMARS, and explores their future development. …”
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The problem of combustion instability in liquid rocket engines by Samir Vekilov, Volodymyr Lipovskyi, Roman Pustovyi

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Infrasound emitting at the start of a space rocket launch by Yehor Zahrevskyi, Halyna Sokol

“… The analysis of acoustic radiation during the launch of a heavy space rocket is the main goal of this work. Particular attention is paid to the determination of sound pressure levels in the vicinity of the rocket body and its potential effect on the body, flexible connections and internal devices. …”
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Mathematical model for heat transfer in variable thickness fins for rocket engines by Volodymyr Sliusariev, Valerii Bucharskyi

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Using Hydrogen Peroxide for Rocket Fuel Tank Pressurization: Innovations, Advantages, and Challenges by Mykhailo Vorobei, Mykola Bondarenko

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Research on the Connection of Heterogeneous Non-Metallic Materials in the Manufacture of Rocket and Space Technology Structures by Tamara Manko, Krystyna Kozis

“… In order to choose a method of joining dissimilar non-metallic materials in the manufacture of compartments of rocket and space technology, it is of particular interest to study the adhesion strength using a whole range of materials. …”
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Statement of the problem of designing a liquid rocket engine dual bell nozzle of the maximum thrust using the direct method of the calculus of variations by Ivan Dubrovskyi, Valerii Bucharskyi

“… A rocket engine with a standard single-section profiled nozzle provides maximum thrust only at a certain value of atmospheric pressure [1]. …”
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Design and Optimization of a Hybrid Gas Generator for Hydrogen Peroxide Tank Pressurization by Mykhailo Vorobei, Mykola Bondarenko

“…The system aims to improve hybrid rocket engine efficiency and reliability by stabilizing oxidizer tank pressure. …”
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Semantic difficulties of the English aerospace terminological system by Irina Suima

“… The Purpose of the research is to describe the modern system of astronomical and rocket engineering terminology and to investigate the peculiarities of the translation of the relevant terms into the Ukrainian language. …”
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UAV launch methods by Oleksandr Dobrodomov, Vladyslav Proroka, Oleksii Kulyk

“…Catapults are suitable for a wider range of UAV sizes and launch energy requirements; Chemical reactions, such as those occurring in chemical gas generators or through solid rocket fuel combustion in rocket motors, can also provide launch energy. …”
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Experimental investigation of the parameters of additively manufactured coaxial swirl injectors by Samir Vekilov, Volodymyr Lipovskyi, Roman Marchan, Artem Lohvynenko

“…Usually for successful development of the rocket engine costly equipment as well as advanced manufacturing experience is in need which explains high overall manufacturing cost. …”
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Pesticide application and water quality in Doho and Kibimba rice irrigation schemes, eastern Uganda by Sulaiman, Abubakar Aminua, Sarah, Nachuha, Zakia, Tebetyoc

“…Independent t-test results showed that water pH, temperature and turbidity varied significantly between Doho and Kibimba (P<0.05). Herbicides such as rocket, Diazine, Cypermatrine glyphosate were being used by famers with rocket frequently used at Doho while glyphosate was the only one used at Kibimba. …”
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Optimization design of an acoustic cover layer for a cylindrical cavity based on porous materials by Bohan ZHANG, Jili RONG, Xiuyan CHENG

“…During the launch and flight of carrier rockets, the acoustic and vibrational excitations generated by the external environment pose significant threats to their internal payloads. …”
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Transfer functions of a time-varying control system by Volt Avdieiev

“…The task is to show the possibility of obtaining a second-order transfer function, which is equivalent to the LTV on a certain trajectory section, using the example of the system for controlling the rotational motion of a rocket in one plane. The concept of a transfer function is based on the integral Laplace transform, which maps the time function to complex argument function. …”
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Cost-effectiveness Analysis of Rivaroxaban versus Acenocoumarol in the Prevention of Stroke in Patients with Non-valvular Atrial Fibrillation in Spain by Carlos Rubio-Terrés, Ruth Graefenhain de Codes, Darío Rubio-Rodríguez, Thomas Evers, Santiago Grau Cerrato

“…**Methods:** A Markov model was designed and populated with local cost estimates, efficacy and safety of rivaroxaban in stroke prevention in NVAF compared with adjusted-dose warfarin clinical results from the pivotal phase III ROCKET AF trial and utility values obtained from the literature. …”
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Homogeneous Model in Finite Element Analysis for Natural Frequency Calculation of Axisymmetric Shells by Volodymyr Lipovskyi

“…The article presents an original analysis of a real case where a simplified model was implemented to determine the natural harmonics of a liquid rocket engine nozzle, making it a valuable tool for studying complex structures. …”
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Pollution Characteristics and Key Reactive Species of Volatile Organic Compounds in Beijing-Tianjin-Hebei Area, China by Yanan Guan, Yihao Zhang, Yisen Zhang, Xiaoli Wang, Jing Han, Wenbo Song, Li’an Hou, Erhong Duan

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Experimental Study of Methods of Increasing the Efficiency of a Direct-Flow Air-Jet Detonation Engine by Vitalii Stoliarchuk, Oleksandr Zolotko, Oleksandr Aksonov

“… A fundamentally new direction in the development of rocket and space propulsion is the introduction of jet engines operating on the detonation principle of energy conversion of the working body. …”
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Advances in the carbon-ceramic composites oxidation and ablation resistance: A review by Anna Didenko, Alexey Astapov

“…A review and critical analysis of recent advances in the field of oxidation and ablation resistance of carbon-ceramic composite materials, which are the most promising for high temperature applications in load-bearing structures and heat-protective systems of rocket and aerospace engineering, is carried out. …”
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THE YOUNG LEARNERS’ PERCEPTION TOWARDS ENGLISH INSTRUCTIONAL PRACTICES USING VIRTUAL PLATFORMS by Purwanti Taman, Sukma Septian Nasution, Tommy Hastomo, Nur Najibah Sukmawati, Laksmy Ady Kusumoriny

“… The popularity of virtual-learning platforms as an alternative for instructional practices during the pandemic is rocketing yet students’ perceptions to the implementation are not optimally gauged especially to young learners. …”
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