bluuebunny/crossref_metadata_2025_split huggingface dataset:
Improvement of fatty systems biotechnological interesterification with immobilized enzyme preparation usage
Authors: Belinska Anna , Bliznjuk Olga , Shcherbak Olena , Masalitina Nataliia , Myronenko Liliia , Varankina Oleksandra , Samoilenko Serhii , Borovkova Viktoriia , Kibenko Natalya , Timchenko Valentina 
Published: January 2023

This work research object was fat systems interesterification biotechnology using the Lipozyme TL IM immobilized enzyme preparation. The problem of enzyme preparation activation by moistening with sodium bicarbonate aqueous solution with 7.4 ... 7.7 (3 % wt.) pH was solved in the work. The obtained results made it possible to minimize the interesterification process duration with high-quality product obtaining. The proposed enzyme preparation processing made it possible to reduce the duration of the biointeresterification process in a model fat mixture (palm stearin, coconut and soybean oils in a ratio of 1:1:1, respectively) to 3.5...3.7 hours. The product with high quality indicators, namely up to 0.26 mg KOH/g acid number, up to 0.60 mmol ½ O/kg peroxide number and 1.70 c.u. anisidine number, was obtained as a result. The obtained data can be explained by a fact that effective biocatalysis with lipolytic enzymes as the protein molecules requires the existence of two phases – lipid and water. This fact was provided by the activation parameters justified in the study. The obtained results feature was possibility of enzyme preparation activation, which is not provided under industrial conditions due to the threat of raw materials and finished products hydrolytic processes, which leads to the finished product quality deterioration. The research results made it possible to minimize hydrolytic processes in fat system during interesterification with simultaneous process efficiency increase. From a practical point of view, the discovered activation mechanism made it possible to adjust the enzyme preparation processing conditions in fat systems interesterification technology. The applied aspect of scientific result using was the possibility of improving the typical technological process of fat interesterification
Improvement of information support to promote the economic advantages of energy saving under the conditions of military conflicts
Authors: Chechel Oleh , Bashuk Alla , Bilan Nadiia , Mukovoz Viacheslav 
Published: January 2023

Energy consumption is the most important strategy for improving economic efficiency and decarbonization. State energy saving measures aimed at promoting changes in sustainable habits and procedures can significantly save energy consumption. Information support for promoting the economic benefits of energy saving under the conditions of military conflicts needs more attention.
The leading methodological tools were the methods of observation, comparison, as well as historical method.
The research reported here showed that the aggression on the part of the Russian Federation required states to urgently improve the system of implementation of national information policies in order to increase the level of energy saving and energy efficiency. The EU's plans to reduce energy consumption "Play your role" and "Save energy" are aimed at informing the public about the need to contribute to energy saving processes. It is proved that currently in the EU, 80 % of member states ensure the effective implementation of new state campaigns for information support to promote the economic benefits of energy saving. Awareness-raising campaigns such as EPAH, I Have Influence, Green Ambassadors, EU4Energy's energy awareness campaign in collaboration with EU NEIGHBORS east are noteworthy. This activity and the set of energy labeling measures ENERGY STAR and EPREL can become the basis for the implementation of public education programs at educational institutions during the period of military instability in Ukraine. A promising vector of further scientific research will be the analysis of the practice of implementing information support to popularize the economic benefits of energy saving on the territory of Ukraine during the aggravation of the military conflict on the territory of the state
Improving the method for increasing the efficiency of decision-making based on bio-inspired algorithms
Authors: Koval Mykhailo , Sova Oleg , Shyshatskyi Andrii , Artabaiev Yurii , Garashchuk Nataliia , Yivzhenko Yurii , Luscshay Yuriy , Dovhopoliuk Liudmyla , Haidenko Oles , Dorofeev Mykola 
Published: January 2023

The problem that is solved in the research is to increase the efficiency of assessing the state of the monitoring object while ensuring the given reliability, regardless of the hierarchy of the monitoring object. The object of research is decision support systems. The subject of the research is the process of evaluating the monitoring object using bio-inspired algorithms. The hypothesis of the research is the need to increase the efficiency of the assessment of the state of the monitoring object with the given reliability. In the course of the research, an improved method of increasing the efficiency of decision-making based on bio-inspired algorithms was proposed. General provisions of artificial intelligence theory were used to solve the problem of analyzing the object state in intelligent decision support systems.
The essence of improvement is to use the following procedures:
− taking into account the type of uncertainty about the state of the monitoring object (full uncertainty, partial uncertainty and full awareness);
− taking into account the degree of noise in the data on the state of the monitoring object. Noise refers to the degree of information distortion created by the enemy’s means of electronic and cyber warfare;
− using the ant colony optimization algorithm and the genetic algorithm to find the path metric while assessing the state of the monitoring object;
− deep learning of synthesized ants using evolving artificial neural networks.
An example of using the proposed method in assessing the state of the operational situation of a group of troops (forces) is presented. The specified example showed a 15−22 % increase in the efficiency of data processing using additional improved procedures
Determining changes in the mineral composition of concrete due to chemical corrosion in a sulfate environment
Authors: Shkromada Oksana , Ivchenko Viktoriia , Chivanov Vadym , Shvets Olha , Moskalenko Volodymir , Kochenko Alexander , Babenko Olena , Kharchenko Yuliya , Pikhtirova Alina , Yurchenko Oksana 
Published: January 2023

The object of this study was the concrete structures of a chemical enterprise for the production of titanium dioxide. In this case, the ore is decomposed with sulfate acid according to the sulfate production technology. In an aggressive environment, chemical corrosion of concrete occurs, prolonged over time.
Using X-ray diffraction and X-ray fluorescence analysis methods, the mineral composition of two prototypes of concrete was determined. It was found that the sample obtained from the workshop for processing ore with sulfate acid showed an increased content of sulfur oxide (SO2) on the surface, by 33 %, with a reduced content of carbonates (CaCO3) on the surface, by 52.9 %, at a depth of 2 cm – by 53.65, compared to another (control) sample. At the same time, iron oxide (Fe2O3) was found on the surface in a sample of concrete from the ore storage room (control), the content of which decreased by 10.4 % at a depth of 2 cm, and by 12.4 % at a depth of 4 cm.
The results of electron microscopy show sulfur crystals on the surface of a concrete sample. It was also found that the microstructure of concrete was changed under the influence of sulfate corrosion, depending on the intensity of the exposure to a depth of 2 to 4 cm. By the method of thermoprogrammed mass spectrometry, it was established that when a sample of concrete exposed to sulfate acid is heated to a temperature of 400 °C, sulfur dioxide SO2 is released mainly from the surface. From the surface of the control sample, which contains a significant amount of CaCO3, which is easily destroyed by sulfate acid, there is probably a smaller amount of the product of thermal destruction of calcium carbonate carbon dioxide (CO2).
The results of the experiment can be used to study the mechanism of development of sulfate corrosion of concrete prolonged over time.
Chemical composition, thermal stability of pomegranate peel and seed powders and their application in food production
Authors: Gurbanov Nusrat , Gadimova Natavan , Osmanova Sevinj , Ismailov Etibar , Akhundova Nazilya 
Published: January 2023

Pomegranate seed and peel powders are suitable for the production of pectin, oil, proteins and as biologically active additives for food enrichment.
Knowledge of the chemical composition and thermal changes of powders allows to control the technological regimes, yield and quality of the final product. As a result of the studies, the chemical composition and thermal properties of a finely dispersed pomegranate peel and seed powder subjected to heat treatment by X-ray diffractometry, IR-, EPR spectroscopy and thermal analysis (TG/DTG/DSC) have been carried out.
X-ray diffractometry showed that the crystal structures present in the original samples, when heated in air at 110 °C for 30 min. are destroyed and in all cases the samples pass into the amorphous state, a noticeable difference is found in the position and intensity of the observed bands in the spectra in the initial and heat-treated samples.
IR spectroscopy data show that drying the samples at 105 °C in air for 30 min leads to a significant change in the chemical composition of the powders. EPR spectroscopy showed the presence of paramagnetism in the samples and identified organic radicals and paramagnetic centers from Fe3+ ions. The features of the change in the chemical composition during drying of samples, which are characteristic of drying processes, namely, are the result by dehydration, dehydroxylation and denaturation of protein compounds that make up this process, have been established.
Temperature intervals (54.2–147.9 and 71.7–95.4 °C, 147.9–343.7 and 343.7–466 °C) associated with changes in the composition of organic compounds, contained in the powders were determined.
The development of a management decision-making method based on the analysis of information from space observation systems
Authors: Khudov Hennadii , Makoveichuk Oleksandr , Butko Ihor , Butko Mykola , Khudolei Veronika , Kukhtyk Stanislav 
Published: January 2023

The object of this study is the process of making a management decision based on the analysis of information from space surveillance systems.
Unlike the well-known ones, the method of making a management decision based on the analysis of information from space surveillance systems involves:
– segmentation of an optoelectronic image;
– determination and prediction of a priori probabilities of possible environmental states;
– an application for making a management decision of a combination of Bayes criteria and a minimum of variance.
Experimental studies have been carried out on making a management decision based on the analysis of information from space surveillance systems. To conduct experimental research on making a management decision based on the analysis of information from space surveillance systems, a model problem has been stated. As images from space surveillance systems, images obtained from the WorldView-2 spacecraft (USA) with a difference of four days were considered. The vegetation index was calculated, and the probabilities of degradation dynamics of plant segments were determined. It was established that the maximum value of the estimated functional is achieved when choosing a solution φ1, which is optimal according to the Bayesian criterion and the criterion of minimum variance.
The quality of management decision-making was assessed by the well-known and developed methods. To assess the quality of management decision-making, the concepts of objectivity of the decision-making method and the selectivity of the decision-making method by known and developed method were introduced. It has been established that both methods are objective, and the improved method is more selective (the gain is 2.6 times). This becomes possible through the use of information from space surveillance systems.
Physical and mechanical properties of ceramic brick using rice husk and ash of thermal power plants
Authors: Uderbayev Saken , Dilmanova Aizhan , Saktaganova Nargul , Budikova Aigul , Bessimbayev Yerik 
Published: January 2023

The paper presents the results of the influence on shrinkage deformations of the adopted composition during the drying and firing of ceramic bricks made using rice husk and ash of the combined heat and power plant of the city of Kyzylorda of the Republic of Kazakhstan.
The optimal values of the husk additives content and ash from thermal power plants in the studied compositions were determined. Ash dumps from thermal power plants (TPP) create environmental tension and pose a great threat to both the environment and human health. It was found that the hydro-removal ash from the thermal power plant mainly consists of oxides of silica (45.45…46.37 %) and alumina (16.62…17.70 %), there are oxides of calcium (1.66…2.20 %), magnesium (0.86…1.12 %), iron (2.98…3.41 %) and alkali metals (0.80…1.04 %).
The composition of ceramic bricks based on loess-like loam, rice husks, and ash from thermal power plants was studied. The charge composition of the raw components of the “clay, TPP ash, and rice husk” brick: clay is 71…75 %, TPP ash is 18…22 %, and rice husk is 2…6 % of the total mass of the components of the raw mixture of ceramic bricks. The compressive strength of fired ceramic bricks was 11…12 MPa.
According to the results of experimental studies, it was found that the increased concentration of rice husks in natural mixtures is characterized by a stable increase in ceramic mass drying cracks. The increase in time until the appearance of drying cracks is 100 up to 160 sec.
The resulting ceramic brick in accordance with the developed composition has a low weight, good thermal properties and meets the standard requirements for ceramic bricks according to GOST 530-2012
Enhancing mechanical characteristics by adding nanoparticles and employing lasers in heat treatment
Authors: Asaad Lamyaa Mahdi , Alshalal Iqbal , Al Zubaidi Faten N. , Asmail Muna Khalil 
Published: January 2023

With the development of laser technology in various fields of engineering and manufacturing in terms of many uses in these areas and in the field of improving the mechanical properties of different metals for their ability to withstand different thermal and mechanical stresses and stresses. Wherein this research paper the addition of nanomaterials and laser heat shedding on them and knowing their ability to improve. The design process of the simple model that complies with the requirements of the simulation process was in the solid works program. The investigated dimensions were (100×100×10) mm3 in height, split up in the form of two portions. The partition itself is the path of the laser used. It is necessary to check the reliability of the mesh to form an appropriate mesh that can give accurate results. The nanoparticles where Al2O3 and TIC were used in different proportions with the base material. Which is steel, where these ratios were (0.3, 0.6, 1) wt %, where the results proved the process of adding nanomaterials has positive effects in terms of the materials' tolerance to heat, mechanical stress, and the surrounding conditions. Seen through the results with the increase in the concentration values of adding nanoparticles, get a significant effect on the results and the values of thermal and mechanical properties. The TIG (Tungsten inert gas) nanomaterial led to an increase in temperatures in the solid by 1 wt % compared to the rest of the concentrations and nanomaterials. The addition of nanomaterials in heat treatments has a positive effect on the amount of deformation, as the lowest value of deformation was obtained in nanomaterials at tic1 wt % compared to the rest of the concentrations. As for the stresses, the largest stress obtained is 10.502 Gpa
Determining static characteristics of corrugated shell elements made from composite materials
Authors: Polyakova Irina , Imambayeva Raikhan , Aubakirova Bakyt , Shogelova Nazym , Glyzno Yevgeniya , Zhumagulova Aigerim 
Published: January 2023

This paper considers elastic shell elements. They move under pressure. The type of dependence of displacement on pressure is called the elastic characteristic of the element. The object of this study is shell elements with a complex surface shape, consisting of composite materials of the "metal-metal" type. The composite is a metal shell with reinforcing fiber made of another metal material. The form of reinforcement is different. The task to be solved is to determine the elastic characteristics of the shell elements depending on the geometric parameters, as well as the mechanical values of the shell at its various points and in different directions. To this end, algorithms were built for calculating mechanical quantities depending on the percentage of the fiber and the shell matrix. It was required to derive a system of equations for determining the displacements and internal forces in the element depending on the geometric and mechanical parameters. A numerical calculation of shell elastic elements was performed and a comparison of the results of analytical calculation according to the algorithm developed in this work and experimental data was performed. The match between these results is 99.8–100 %. The characteristics of the shell elements were determined depending on the type of reinforcing fiber and matrix, on the geometric parameters, and the type of reinforcement of the shell. These studies make it possible to design shell elements with specified characteristics and predefined sensitivity.
Development of an efficient voltage regulation mechanism for switched capacitor converter with exponential gain
Authors: Abdul Kadir Mohamed N. , Ameen Yasir M. Y. , Al-Badrani Harith 
Published: January 2023

The compact switched-capacitor converter with exponential gain and modular design has been adopted in this paper. Two approaches have been applied to improve the efficiency by providing multiple no-load voltages. The first modifies the switching strategy to bypass the gain of one or more stages. The second introduces modified design that provide additional no-load voltages through alternative current paths. The voltage regulation is implemented by two control loops: The outer loop is designed to produce the minimum feasible no-load voltage and the inner loop adjusts the duty ratio of the switching signals to regulate the voltage to meet the desired reference. Switched capacitor converters have been used as voltage multipliers with constant voltage gain. The efficiency of a switched capacitor converter depends on the ratio between regulated to unregulated output voltage. Therefore, output voltage adjustment of these converters causes a significant efficiency reduction. By providing multiple no-load voltages within the output voltage range the efficiency of the switched capacitor converter can be improved. The proposed design has been applied to a three-stage converter to provide six no-load voltages. Simulation results demonstrate that the average efficiency over the entire output voltage range is more than 90 % of its maximum efficiency of the unregulated switched capacitor converter which reflects the effectiveness of the proposed scheme. This paper offers an efficient method to regulate the voltage of a modular switched capacitor converter with exponential gain. The advantages of the proposed design are small number of added components, does not require additional sources and suitable for higher power range
Devising a technique for manufacturing canned beans with soaking under the conditions of electric contact heating
Authors: Shevchenko Andrey , Mayak Olga , Mykhailov Bogdan , Prasol Svitlana , Mykhailova Olena 
Published: January 2023

Beans are a rich source of nutrients, including proteins, starch, some unsaturated fatty acids, dietary fiber, vitamins, minerals, and phytosterols. The negative characteristics of beans include the presence in the bran shell of beans of specific substances – antinutrients that can be neutralized during soaking.
The aim of this work was to develop a way to produce canned beans with pre-soaking. A laboratory unit was designed with cold soaking (at a temperature of the surrounding medium of 20 °C), by the hot method (at a temperature of 50 °C) with heating from a spiral, and with electrocontact heating. Experimental studies determined the dynamics of mass change when soaking beans samples of "Rant" variety by various methods. Under the conditions of electrocontact heating, the highest value of the final mass was revealed, 150 % larger than the initial, and the shortest duration of the process (compared to the cold method – 2.25 times less). It is proved that the cold method is the least energy-consuming. Due to its shortcomings in the relatively significant duration and risk of obtaining products of unsatisfactory quality, the use of the cold method is impractical. To implement the hot method, an effective method from the point of view of energy saving is the soaking method under conditions of electrocontact heating, in which the power was 19 % less.
Within the framework of the task set, the organoleptic indicators of finished products "Beans in tomato sauce of the highest grade" were investigated in accordance with DSTU 6074:2009. According to technological advancements, the products compiled with the standard indicators and received the highest ratings, which indicates their high quality.
Formulation of a biocellulose mask containing the essence of Aloe vera (L.) Burm.f combination with vitamin E as anti-aging
Authors: Fitri Raissa , Syahputra Hariyadi Dharmawan , Nasri Nasri , Kaban Vera Estefania , Rani Zulmai 
Published: January 2023

Most ageing processes are accelerated due to an increasing amount of endogenic stress from outdoor or indoor activity overload. The essence of aloe vera is formulated in the form of a biocellulose mask. It is one of the solutions to deliver essence within polymeric substances, obtained through the fermentation process with the help of Acetobacter xyllinum.
The aim of this study is to enhance anti-ageing activity derived from Aloe vera (L) essence combined with vitamin E, thus in the form of a biocellulose mask that will prolong skin contact and reduce the main cotton sheet mask problem of deforestation, hence its eco-friendly benefit.
Material and methods: Twelve volunteers around 25 to 45 years old are subjected to a biocellulose mask containing Aloe vera essence combined with vitamin E for at least 4 weeks to achieve a balanced skin criterion including wrinkles, spots, facial pores, and moisture. Aloe vera and vitamin E constituents within F0; F1, F2; F3, [0%, 0%]; [0%, 1%]; [5%, 0 %] and [5 %, 1 %] as per the following.
Results: Results showed that bio-cellulose masks containing 5 % Aloe vera with 1 % of vitamin E essence in F3 provide a beneficial anti-ageing activity rather than other biocellulose mask preparations.
Conclusion: Biocellulose mask through the fermentation process can improve skin conditions, the formula combined with the well-known activity of aloe vera as an exfoliating agent and antioxidant vitamin E, it can not only provide skin rejuvenation but also provide anti-ageing activity