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Number No. 5 (2023) Year 2023

17 articles in this issue 

Oleg Anipko, Dmitro Baulin, Stanislav Horielyshev, Igor Boikov, Yurii Babkov, Oleksandr Oleksenko, Halyna Misiuk, Volodymyr Kutsenko, Mykhailo Ivanets, Valerii Voinov

World experience in storing ammunition shows that during long-term storage, pyroxylin gunpowders used in ammunition are capable of arbitrarily undergoing various physical and chemical transformations, which negatively affects the ballistic characteristics... see more

Pags. 3 - 13  

Abdulaga Gurbanov, Ijabika Sardarova, Javida Damirova, Ismayil Huseynov

Hydrocarbon resources were considered as the basis of Azerbaijan's energy security. Ensuring the most complete and rational use of oil-associated gas resources is important for improving the efficiency of the oil industry and the national economy as a who... see more

Pags. 14 - 20  

Bode Haryanto, Fatimah Batubara, Ella Theresia Ginting, Dicky A. D. Situmorang, Vikram Alexander

The adsorbent is a solid substance that can absorb certain components from the liquid phase. Most of the adsorbents are porous materials and the adsorption process takes place, especially in the porous wall or certain location inside that particle. The ma... see more

Pags. 21 - 34  

Faustino Moreno-Gamboa, Gustavo Guerrero-Gomez, Alvaro Jr Caicedo-Rolon

Due to decrease of oil reserves, the international commitment for the reduction of pollutant emissions and environmental protection, renewable energy sources are intensively studied, including solar energy applications. However, solar energy is not consta... see more

Pags. 35 - 45  

Juan Botero-Valencia, Daniel Sanin-Villa, Juliana Valencia-Aguirre

Energy harvesting models are the focus of most countries, given that governments are becoming aware of the limitations of natural resources and the need to optimize them. On the other hand, different systems used in everyday life and in industrial environ... see more

Pags. 46 - 55  

Eko Hariyono, Nadi Suprapto, Isna Zakhiyah, Mohamad Hisyam Ismail

The increase in energy consumption and demand is a problem that needs to be resolved immediately, one of the viable solutions is to develop a Dye-Sensitized Solar Cell (DSSC) prototype. This solar cell precursor can also be used as a prototype of STEAM Ed... see more

Pags. 56 - 66  

Vladyslav Proroka, Mykola Dron, Oleksii Kulyk, Vadym Solntsev, Svitlana Klymenko

The object of this research is the process of choice the strategy for the development of the Ukrainian segment of suborbital launch vehicles (SOLVs). Problems arising in this process are analyzed and a search of ways of overcoming them was carried out. Th... see more

Pags. 67 - 79  

Aygun Safarova, Javida Damirova, Ismayil Huseynov

As it is known, primary oil processing facilities are designed for the production of light-colored oil products and various oil fractions that meet modern requirements with their quality. The main equipment of these technological facilities are rectificat... see more

Pags. 80 - 93  

Peter Eliseyev, Maryna Loriia, Olexii Tselishchev, Oleksandr Gurin, Oksana Kupina, Tetiana Sotnikova

The object of the study is the methodology of developing automatic control systems for one class of technological objects, namely, multi-tonnage chemical-technological productions.This class of technological objects is characterized by significant inertia... see more

Pags. 94 - 104  

Pham Quang Trung

The new designs or new materials used in foundries for sand casting products in Vietnam now often rely on experience and adopt the try-to-fix method to gradually find the best implementation. This method is very time-consuming, and the product is often un... see more

Pags. 115 - 121  

Fazil Veliev

The issue of the safety of cotton seeds during the roller ginning process is one of the subjects of research on the dynamic processes of primary processing of raw materials.The study of the work of roller gins first of all showed that the process of rolle... see more

Pags. 122 - 132  

I Made Astika, I Nyoman Suprapta Winaya, I Dewa Gede Ary Subagia, I Ketut Gede Wirawan

The construction industry represents the largest energy-consuming sector globally, primarily due to its substantial operational processes power demand. To address this, there has been an increased emphasis on using materials capable of absorbing and stori... see more

Pags. 133 - 147  

Esmar Budi, Widyaningrum Indrasari, Iwan Sugihartono, Teguh Budi Prayitno, Hadi Nasbey, Riser Fahdiran, Md. Nizam Abd Rahman

The parameter such as reinforced particles plays a role in controlling the microstructure and eventually influences the mechanical properties of the composite coating. The microstructure strength of composite coating come from phase combination of the mat... see more

Pags. 148 - 155  

Yuriy Gevorkyan

This paper provides another proof of Fermat's theorem. As in the previous work, a geometric approach is used, namely: instead of integers a, b, c, a triangle with side lengths a, b, c is considered. To preserve the completeness of the proof of the theorem... see more

Pags. 156 - 163  

Yevhen Hrabovskyi, Hryhorii Kots, Kostiantyn Veretelnyk

The purpose of this study is to develop a methodology for creating an on-line assistant for electronic publications for mobile devices. The survey of experts is determined the basic requirements for an on-line assistant. Based on the results of the survey... see more

Pags. 164 - 176  

Airam Curtidor, Ernst Kussul, Tetyana Baydyk, Masuma Mammadova

Analysis of white blood cells from blood can help to detect Acute Lymphoblastic Leukemia, a potentially fatal blood cancer if left untreated. The morphological analysis of blood cells images is typically performed manually by an expert; however, this meth... see more

Pags. 177 - 190