bluuebunny/crossref_metadata_2025 huggingface dataset:
Devising an edge effect compensation procedure to eliminate structural distortions during frequency filtering
Authors: Vlasenko Vladimir , Khlamov Sergii , Savanevych Vadym , Vovk Oleksandr , Hadzhyiev Emil , Bondar Yehor , Netrebin Yuriy
Published: September 2024

The object of this study is the process of filtering astronomical frames that contain images of potential objects in the Solar System. To recognize the image of each such object in contrast with the background of the frame, it is necessary to carry out frequency filtering of the image. Any frequency filtering using various image filters is aimed at reducing the dynamic range of the background substrate. Also, frequency filtering leads to an increase in the signal-to-noise ratio of the entire image or its fragments, depending on the configuration. However, the identified problem area of each image during frequency filtering is the distortion of the structure of its edges. Therefore, to solve this problem, an edge effect compensation procedure has been proposed to eliminate structural distortions during frequency filtering.
Complementing the image with borders on all sides and the augmented extended image made it possible to introduce a formal connection between the pixel values of the extended image fragment and the pixel values of the extended original image. Testing was carried out using a high-pass Gaussian filter. The use of the devised edge effect compensation procedure made it possible to remove distortion of the structure of the image edges.
The devised edge effect compensation procedure was tested in practice within the CoLiTec project. It was implemented during the in-frame processing stage of the Lemur software.
The study showed that the use of the devised edge effect compensation procedure makes it possible to remove image artifacts compared to conventional filtering without taking into account the edge effect. Also, owing to edge effect compensation, structural image distortions were eliminated, and the signal-to-noise ratio was increased by 7–10 times
Determining the influence of plant-based proteins on the characteristics of dairy ice cream
Authors: Mykhalevych Artur , Polishchuk Galyna , Bandura Uliana , Osmak Tetiana , Bass Oksana
Published: September 2024

This paper investigates the functional and technological properties of proteins in the composition of dairy ice cream. The object of the research was the technology of ice cream with plant-based proteins. The problem to be solved was the improvement of physical-chemical and rheological characteristics of mixtures and ice cream with a low fat content by using moisture-binding structuring proteins of plant origin.
It was established that pea protein concentrate has the highest foaming properties. Oat protein concentrate shows a moderate ability to form and stabilize foams, while soy protein isolate does not reveal this function at all. The presence of plant-based proteins in all ice cream mixtures increases their nominal viscosity, but the highest thixotropy is observed for the concentrate of pea (56.5–61.0 %) and oat (54.8–57.2 %) proteins. They form food systems with a pronounced coagulation structure, which are capable of self-repair of bonds during the maturation of mixtures for 8 hours. Soy protein isolate reduces the thixotropic ability of ice cream mixtures, which limits the expediency of its use. The defined physical-chemical indicators of ice cream make it possible to justify the rational content of proteins in the composition of ice cream, which is 1–2 % for pea protein concentrate and 1 % for oat protein concentrate.
Data on the rheological behavior of ice cream mixtures do not always coincide with previously established patterns, which is due to the difference in chemical composition between the studied food systems, as well as methods of their preparation and use.
The results of this work could be used in the technology of low-fat ice cream, as well as in compositions for new types of ice cream enriched with protein
Determining the efficiency of techniques for optimizing the number of tags in modern human-machine interfaces under conditions of limited resources
Authors: Polupan Volodymyr , Mirkevych Roman , Pupena Oleksandr , Klymenko Oleh , Mirkevych Oleksii
Published: September 2024

The object of this study is modern Human-Machine Interfaces (HMI) and SCADA systems in the industry. The subject of research is techniques for optimizing the number of tags (variables) in the SCADA/HMI environment to enhance resource utilization efficiency.
One of the challenges in creating SCADA/HMI-based solutions can be the number of tags (variables) in the runtime environment. A large number of tags can lead to a problem of limited available resources.
The technique presented here allow for the optimization of the number of tags used in Human-Machine Interface systems built with SCADA software and operator panels in combination with Programmable Logic Controllers (PLCs).
An evaluation of the efficiency of techniques for reducing the number of HMI tags was conducted on an experimental configuration consisting of objects such as discrete input/output, analog input/output, actuators such as valves with discrete/analog control, and drives with frequency converters. The optimization coefficient, defined as the ratio of the number of input/output tags used directly to the number of tags after applying the optimization principle, was used as the efficiency criterion. Depending on the techniques and their combinations, the criterion values reached orders of 4, 10, and in one case even more than 100. These values are explained by the application of multiplexing approaches and various packing techniques.
The advantages and disadvantages of the reported techniques, as well as their application limitations, have been identified. Some techniques are suitable only for specific tasks.
These techniques could be applied in practical implementation when designing modern high-efficiency Human-Machine Interfaces under conditions of limited resources.
Hardware-software implementation of a local Wi-Fi network for the transmission of biomedical signals
Authors: Gerasimova Yuliya , Ivel Victor , Moldakhmetov Sayat , Petrov Pavel
Published: September 2024

The object of this study is a wireless local Wi-Fi network for broadcasting biomedical signals, its structure, and principles of construction. The task of minimizing the power consumption of a Wi-Fi transmitter has been addressed, which provides the possibility of building a wireless system for long-term monitoring of biomedical signals. As a result, a functional diagram of a wireless Holter monitoring system based on an ESP32 microcontroller was constructed, which includes a subsystem for setting up and diagnosing system units using MATLAB software packages, an ECG signal generator, and a multifunctional PCIe board from National Instruments. Evaluation criteria and methods for minimizing power consumption by an autonomous Wi-Fi transmitter have been proposed. Methods for synchronizing the working cycles of the transmitter and receiver of the Holter monitoring system were determined. A procedure for determining the optimal biosignal measurement frequency is presented, at which the distortion of ECG signals would be minimal, which means that the signal could be transmitted without losses. The concept of constructing an algorithm for implementing a program for a Wi-Fi transmitter has been developed, ensuring parallel execution of ECG signal measurement operations and their transmission over a local network. The data from semi-naturalistic tests with an experimental Holter monitoring system with a pre-setup subsystem and using external measuring devices, a computer, and the MATLAB software environment are presented. A comparative analysis of the experimental data with primary ECG signals and ECG signals at the receiver output showed a fairly stable correspondence between the input and output ECG signals. The proposed algorithms make it possible to reduce the average current consumption of the ESP32 microcontroller to 50.5 mA. The results of the study demonstrate the possibility of constructing an energy-efficient wireless system for long-term monitoring of biomedical signals based on the Wi-Fi interface
Identification of crack width behavior of one-way reinforced concrete slab structure at different steel reinforcement area
Authors: Wisnumurti Wisnumurti , Kridaningrat Bhondana Bayu Brahmana , Soehardjono Agoes , Nuralinah Devi
Published: September 2024

An evaluation study of crack limit states based on design codes and prior research is presented in this publication. Its main goal is to connect research findings to common design codes. Researchers continue to face a difficult dilemma when it comes to reinforced concrete structure fractures, particularly in one-way slab constructions where there is still significant damage and corrosion in the reinforcement because of cracks. Practitioners will find it easier to construct these structures and solve the slab durability issue if the proper formula is discovered. One can overcome reinforced concrete. A method for estimating the maximum fracture width formula in one-way reinforced concrete slabs with varying steel areas is suggested based on this research. Slabs use a variety of steel areas, including 1000 mm2, 1200 mm2, and 1400 mm2.The test specimens are the same length of 2 meters and have a slab width of 0.6 meters with steel reinforcement. Findings from a literature review of research codes and prediction formulas from earlier studies, namely wmax(prop)=1.5*10-2fsAs-0.4,  indicate that the maximum crack width is not significantly influenced by steel area (As). Overall, the findings from the two methods used in this analysis match the suggested formula and the observed experimental testing. This data indicates that the maximum fracture width has been greatly lowered by increasing the steel Area (As) of the reinforced concrete slab, leading to the determination of the experimental formula,  As a result, a unique approximation formula has been developed to assess the impact of steel area parameters for pure slabs on the maximum crack width formula for one-way reinforced concrete slabs. This crack width formula is only applicable to one-way slabs in practice.
Establishing patterns of change in the coefficients of reflection, transmission, and dissipation of wave energy depending on parameters of a permeable vertical wall
Authors: Onyshchenko Artur , Kovalchuk Vitalii , Voskoboinick Volodymyr , Voskobiinyk Andrii , Aksonov Sergii , Trudenko Denys , Hrevtsov Serhii
Published: September 2024

The object of research is permeable vertical walls (breakwaters) with different degrees of permeability.
This paper reports the results of experimental research into the interaction of gravity waves with models of permeable vertical walls (breakwaters), which were formed from cylindrical piles of circular cross-section.
With the help of visual and instrumental studies, the features of interaction of surface gravity waves with permeable vertical walls of different permeability have been identified. The degree of wave transformation by these walls was also determined in the form of reflection, transmission, and dissipation coefficients of wave energy.
It was established that with a decrease in the permeability of the vertical wall and an increase in the steepness of the initial wave and a decrease in its period, the height of the reflected wave increased. The pattern of the transmitted wave height had the opposite trend.
It was determined that the wave reflection coefficient increased with a decrease in the permeability of the vertical wall and the steepness of the initial wave. The wave transmission coefficient had the opposite trend, namely, it increased with increasing wall permeability and with decreasing steepness of the initial wave. The gravity wave energy dissipation coefficient decreased with increasing vertical wall permeability, but for waves with a significant steepness hi/λ>0.038, a decrease in the wave energy dissipation coefficient was observed for walls with low permeability and the appearance of extreme values of this coefficient.
Thus, features in the interaction of surface gravity waves with permeable vertical walls (breakwaters) of different permeability have been researched and the degree of wave transformation by these walls has been determined, which could make it possible to effectively design and operate permeable vertical walls as coastal protection structures
Developing the composition of fine-grained concrete from the waste of the mining and processing enterprise
Authors: Plugin Andrii , Chaika Vitalii , Musyenko Sergii , Wu Ping , Ye Zhenhua
Published: September 2024

The object of this study is fine-grained concrete from the waste of mining and processing plants. These wastes are fine-grained dusty sands of polymineral composition. Their use as an aggregate for concrete is restrained by high water consumption, which does not make it possible to obtain sufficient strength for concrete. Therefore, the problem to be solved was the substantiation of the composition of fine-grained concrete from these wastes with mineral and chemical additives, which would ensure obtaining physical-mechanical and hydrophysical properties reasonable for the production of construction articles. The composition of fine-grained concrete from the waste at the Poltava Mining and Processing Plant and slag Portland cement in a ratio of 3:1 and additives of micro silica (15 % of the cement mass) and polycarboxylate superplasticizer (2 % of the cement mass) with W/C=0.5 was obtained. The compressive strength of this concrete reaches 40 MPa, which exceeds the strength of fine-grained concrete of a similar composition on natural fine-grained sand by 3 times. This is due to a greater degree of cement hydration, a greater number of formed hydration products, the presence of silica and quartz particles, a more uniform alternation of gel, silica particles, and crystal hydrates in the structure of cement stone. As a result, the structure contains a larger number of electro heterogeneous contacts between particles and grains that have negative (quartz, calcium hydro silicates) and positive (crystal hydrates of portlandite, hydro aluminates and calcium hydrosulfoaluminate) surface charges. This is what determines the achieved strength and water resistance of fine-grained concrete. The resulting composition of fine-grained concrete is recommended for the production of construction articles.
Synthesis of expert matrices in inductive system-analytical research based on fuzzy logic algorithm
Authors: Osypenko Volodymyr , Korohod Hanna , Zlotenko Borys , Chuprynka Nataliia , Yakhno Volodymyr
Published: September 2024

The object of research is the process of inductive modeling of complex systems. The studies that were conducted related to the application of algorithms of the fuzzy logic theory were to coordinate the conclusions of top-level experts in system information-analytical research (SIAR) in the tasks of innovative design. The possibilities of constructing elements of expert matrices of results, as well as evaluating the effectiveness of such applications, are defined. Thanks to this, obtaining formal expert evaluations in numerical form became possible. Experimental studies have confirmed that the proposed approach to the application of fuzzy logic algorithms to the construction of matrices of expert evaluations of SIAR results is quite effective and simple to implement. In addition, this approach fits well into the general paradigm of the Group Method of Data Handling (GMDH). In particular, it was established that the possibility of «retraining» such a block without significant efforts of professional experts can have a positive result, as well as have a good effect on the economic and time parameters of the research project. The main calculation formulas for the algorithm for building a fuzzy system using a neural network in a system with two rules are given. The construction of a fuzzy information output system trained on expert evaluations in the Matlab system is shown. As a result, a technologically acceptable standard deviation of 0.28268 mg/l was obtained. It has been established that by accumulating a database (knowledge) and/or using an information monitoring system, it is possible to «additionally train» a fuzzy system periodically or according to the established quality criterion in the program mode, without involving experts in this process. Thus, there are reasons to assert the importance of using a fuzzy system as one of the tools in inductive SIAR procedures
Development of rational compositions for multicomponent juices based on melon crops
Authors: Yerenova Bibipatyma , Tlevlessova Dinara , Almaganbetova Aigul , Almasbek Aknur
Published: September 2024

This study objects are juices from melon, watermelon, and pumpkin, as well as additives from apples, plums, pears, bell peppers, beets, carrots, aloe, melissa, and nettle. The problem addressed is minimizing melon crop losses. The research relevance stems from the need to reduce these losses. The development of multicomponent juices is aimed at the more efficient utilization of melon crops, contributing to the minimization of crop losses. Optimal component proportions were determined using sensory evaluation of organoleptic characteristics on a 5-point scale. The results showed that juice compositions with optimal component proportions have high organoleptic qualities and functional orientation. For melon juice, the optimal ratio was as follows: melon juice – 55 %, apple juice – 30 %, green bell pepper juice – 10 %, aloe juice – 5 %. For watermelon juice: watermelon juice – 65 %, plum juice – 25 %, beet juice – 5 %, melissa juice – 5 %. For pumpkin juice: pumpkin juice – 60 %, pear juice – 20 %, carrot juice – 15 %, nettle juice – 5 %. Critical control point (CCP) analysis was conducted at each production stage, from raw material acceptance to packaging and storage of the final product. This analysis identified potential risks and established control measures to minimize them. Developing multicomponent juices based on melon crops with plant-based enriching additives allows the creation of products with high organoleptic qualities and functional orientation, contributing to efficient use of melon crops and reducing crop losses. Implementing the HACCP system at all production stages ensures product safety and high quality. This research offers a practical approach for the food industry to produce high-quality, functional beverages that maximize crop yields and ensure consumer safety
System development for enhancing social media advertisement engagement through XLNet-based personality classification
Authors: Sandra Lidia , Prabowo Harjanto , Gaol Ford , Isa Sani
Published: September 2024

This research focuses on addressing the challenge of implementing personalized advertisements in the retail industry, where existing methods often face complexities that hinder their swift and large-scale adoption. The primary objective of this study was to develop a scalable and efficient social media advertisement personalization system by employing advanced personality classification techniques. The system utilizes the myPersonality dataset, grounded in the Big 5 OCEAN traits theory, to accurately classify user personalities. By integrating the XLNet model, optimized for personality classification, the system achieves a classification accuracy of 97.47 %, with precision, recall, and F1-Score values of 0.95, 0.94, and 0.94, respectively.
The findings demonstrate that personalized advertisements, driven by accurately classified personality traits, significantly enhance user interaction rates, showing a 24 % improvement over generalized advertisements. This improvement in engagement suggests that the system can effectively personalize advertisements to resonate more deeply with users, fostering stronger connections between users and the advertised content.
The proposed system's high accuracy and improved interaction rates make it a valuable addition to current marketing strategies, enhancing both engagement and conversion rates. This innovative approach has the potential to transform personalized advertising, making it more effective and widely adoptable within the marketing sector
Regulation of the power of a wind turbine of a special design by changing the length of the blades
Authors: Antipov Pyotr , Issenov Sultanbek , Koshumbayev Marat , Auelbek Marat , Nurmaganbetova Gulim , Issabekov Dauren
Published: September 2024

The object of this research is a model of a wind turbine with retractable blades. This model allows for the adjustment of the turbine’s screw radius by extending or retracting the blades, providing a basis for examining the impact of blade radius on turbine performance.
The primary problem addressed by this study is to determine how changes in the screw radius, achieved by altering the blade length, affect the wind turbine’s performance, specifically its electrical output (voltage and current) and rotational speed, under constant wind conditions.
The experimental results showed that when the turbine blades are fully extended (R1), the wind turbine generates higher voltage and current compared to when the blades are retracted (R2). This confirms that the turbine’s electrical output is significantly influenced by the screw radius.
These results are explained by the aerodynamic principles governing wind turbines. An increased screw radius allows the turbine blades to capture more wind energy, leading to greater force applied to the blades, thus increasing the rotational speed and the amount of electrical energy generated. The linear relationship between the screw radius and the turbine’s performance was as summed to simplify the analysis, though the actual relationship may be more complex.
The finding soft its study can be practically applied in the design and operation of wind turbines. Turbines with adjust table blade lengths can optimize performance across varying wind conditions, maximizing efficiency and power output. These results are particularly useful in environments where wind speed is variable, as turbine scan adjust their blade radius to maintain optimal performance. The study assumes consistent wind conditions and uniform air flow for the results to be accurate, so these conditions should be considered when implementing the findings in real-world scenarios
European experience in counteracting disinformation influences
Authors: Kovalchuk Alla , Cherniavska Bogdana
Published: September 2024

Information-psychological influences, attacks, and operations do not have a physical manifestation but generate destabilizing internal and external processes within a state. These processes cause aggression, anxiety, and dissatisfaction among the population, potentially leading to open physical conflict. The use of the Internet enables extremist organizations to access mass media, spreading propaganda, informing about their goals, tasks, measures, and forms of support. The authors emphasize the significant impact of modern information and communication technologies on increasing threats to political stability and the security of any state. The aim of this paper is to highlight foreign experiences regarding organizational and legal measures that prevent the spread of disinformation, aimed at inciting hostility and hatred within a state. The study draws on experiences from large-scale protest actions, organized and coordinated through social networks on the Internet. The authors note that blogs, social networks, electronic maps, and video hosting sites are currently used without restrictions for political destabilization. Social networks enable immediate support from like-minded individuals and the publication of extremist materials, which contribute to the escalation of socio-political, ethnic, and interfaith conflicts. The main research methods are comparative analysis, statistical method, historical method, structural-functional method of cognition. Having studied the periods of formation of the system for countering the spread of disinformation in the EU, the authors concluded that the work on countering the spread of disinformation is conducted comprehensively and systematically and is constantly being improved in accordance with the challenges. In the EU countries, not only the practice of combating disinformation has been developed, but also an array of normative legal acts has been adopted to prevent the spread of disinformation. The European experience demonstrates the importance of a balance between freedom of speech and security measures in the information space. Such a comprehensive and conceptual approach should be the basis for creating a system for countering the spread of disinformation in Ukraine.
Kultura i edukacja w obliczu permanentnej zmiany. Wprowadzenie
Authors:   Uniwersytet w Białymstoku, Polska, Szwarc Alina
Published: September 2024

W każdym społeczeństwie występują zarówno procesy kontynuacji, jak i zmiany. Kontynuacja zapewnia ciągłość życia społecznego. Umożliwia podtrzymywanie więzi między pokoleniami, zachowanie tradycji, przejmowanie przez młode pokolenie wiedzy i umiejętności ludzi starszych. Kontynuacja umożliwia istnienie trwałych wartości, wzorów, sposobów działania oraz rozwiązywania problemów, utrzymywanie przyjętego stylu życia. Jest to istota transmisji kultury. Zmiana społeczna jest także ważnym, choć naruszającym status quo elementem funkcjonowania społeczeństwa. Od najdawniejszych lat dokonują się w nim wszakże zmiany demograficzne, warunków życia ludności, relacji między ludźmi, modyfikacje stylu życia, przemiany pokoleniowe (Szymański, 2021, s. 99–100).
Szkoła ogólnodostępna wobec inkluzji uczniów z niepełnosprawnością – diagnoza wybranych problemów
Authors:   Uniwersytet w Białymstoku, Polska, Sakowicz-Boboryko Agnieszka , Otapowicz Dorota ,   Uniwersytet w Białymstoku, Polska
Published: September 2024

At the heart of inclusive education is ensuring that students with disabilities have access to high-quality education in a mainstream setting. The way to achieve this goal is to build a new model, a school better adapted to the needs of all students. The paper aims to present the school situation (educational and peer) of students with disabilities against the background of everyday educational practice implemented in many Polish mainstream schools. Adopting the position on the teachers’ fundamental role in designing the development and learning environment, the focus was mainly on their educational activities and attitudes towards inclusive education. Critical points of the didactic and educational process have been identified, which hinder the transition from school routine to education open to the diverse needs of all pupils, including those with disabilities. Significant obstacles to building cooperation, exchanging knowledge among students, and, consequently, increasing the level of social relations were identified, among which the legitimisation of individualistic values, often reinforced by the mechanism of competition, may be particularly important.
Indywidualność osoby jako źródło radzenia sobie z niepewnością i ryzykiem . Refleksja nad koncepcją indywidualności Jana Szczepańskiego w nawiązaniu do współczesnych technik uważności
Authors:   Uniwersytet Mikołaja Kopernika w Toruniu, Polska, Leszniewski Tomasz
Published: September 2024

The paper attempts to answer the question: how could human individuality be a resource making it possible to cope with the experience of feeling uncertainty and risk? Jan Szczepański’s idea of individuality defines the structure and functions of that dimension of the human condition. It tries to explain the sense of man’s inner world and their reflexivity in struggling with the negative consequences due to the social organisation of collective life. An analytic view of individuality included in this concept allows for revealing the emergency nature of personal identity affected by dialogue between the inner world and the internalised outside world. The discussed concept might increase the attempt to synthesise it with the vision of mindfulness. The effect of it is a unique underlining role of loneliness in the individual process of human development and captures the moral character of individuality (hipo-egoic phenomena).
Tożsamość narodowa Białorusinów i Litwinów: socjologiczne studium porównawcze
Authors:   Instytut Filozofii i Socjologii Akademii Pedagogiki Specjalnej im. M. Grzegorzewskiej, Kanasz Tatiana , Chutnik Agata
Published: September 2024

The article is a comparative analysis of the national identity of Belarusians and Lithuanians. The authors present in turn the complex processes of the formation of national identity of two groups, show their specificities in the historical, cultural and social dimensions, point to the differences and similarities, which emerge on the basis of the review of Belarusian, Lithuanian and international social research, conducted in 2010–2022. After the collapse of the Soviet Union, Lithuania and Belarus took different paths, which influenced the formation of a more consistent model of national identity for Lithuanians and complex and ambivalent one for Belarusians.
The Role of Political Leadership in a Hybrid Regime: The Case Study of Alexei Navalny’s Team
Authors:   University of Silesia in Katowice (Poland), Miarka Agnieszka
Published: September 2024

The article aims to explain Navalny’s team’s political strategy after his arrest, focusing on the activity before the State Duma elections. This is an important issue from the point of view of the impact of leadership on a political organization in a system evolving from a hybrid regime to an authoritarian regime. As confirmed by the author’s research, the organization adapts to new conditions without a leader. Still, it is predestined to disintegrate and reduce the effectiveness of implementing the updated political strategy.
Shifting from seed predator to seed disperser in the Picazuro Pigeon: Insights from an urbanized area
Authors: Franciscão Costa Mariana , Tibério Checon Cristiane , Rodrigues Silva Wesley
Published: September 2024

Frugivory supports seed dispersal and the reproductive success of various plants. Environmental degradation can lead to the local extinction of medium and large frugivores, jeopardizing this process. The picazuro pigeon (Patagioenas picazuro), typically associated with open and semi-open areas in Brazil, was mainly considered granivorous until the late 20th century but is now recognized as a frugivore or granivore-frugivore. In this study, we assessed its frugivorous diet and role as a seed disperser by collecting seeds from fecal samples on the Unicamp campus and analyzing the condition of the seeds after passing through the digestive tract of P. picazuro. We found 42 plant species in its feces, including Cordia myxa, Solanum americanum, Solanum granuloso-leprosum, and Cytharexyllum myrianthum. While Solanum americanum and Solanum granuloso-leprosum had germination rates of 63% and 28%, respectively, Cordia myxa and Cytharexyllum myrianthum did not germinate. Thus, P. picazuro plays a relevant ecological role as an occasional frugivore in semi-open and anthropized environments in southeastern and southern Brazil.
A Relational Approach to Shifting Gen Z and Millennial Environmental Beliefs
Authors: Pflugfelder Ehren Helmut , Al-faqih Jessica , Cadigan-Carranza Hannah , Trueworthy Ali , Turk Tully , Yuan Riley
Published: September 2024

While survey data identifies that most Gen Z and Millennials are anxious about climate change, are supportive of climate activists, and agree that climate change is anthropogenic, that same data fails to nuance these generations' intersectional and relational environmental beliefs. The problem is both methodological and rhetorical, because assumptions built into closed-question public opinion surveys can fail to match younger generations' perceptions on the environment. Additional research methods concerned with capturing these relations, including the cognitive interviews that survey designers already employ, could illuminate these environmental perspectives. We see models for this approach in the preliminary interviews used in large-scale surveys, in the field of climate psychology, and in arguments for ecological rhetoric in communication studies. Building from these fields, we provide example questions that are emblematic of these relational environmental and argue for increasing numbers of smaller, qualitative studies which investigate the many relations that younger generations already experience.
ASSESSMENT OF THE IMPACT OF WELL GRID DENSITY ON OIL RECOVERY UNDER CONDITIONS OF UNCERTAINTY
Authors: Kuleshova L.S.
Published: September 2024

The density of the well grid is one of the most important parameters that has a significant impact on the rate and amount of oil reserves extraction. As practice shows, existing approaches to the reliable assessment and identification of the degree of influence of this indicator on oil recovery do not allow us to adequately form an idea of the dynamics of reservoir processes and their role in making managerial decisions in conditions of uncertainty. Taking into account the decrease in the number of hydrodynamic and geophysical studies conducted in relation to the total number of wells in operation at fields that are being developed for a long time or just being put into development, the issue of predicting the oil recovery coefficient according to the list of geological and field parameters remains open and requires an urgent solution, including those related to the use of unique complex algorithms. The purpose of the work is to determine the relationship between the density of the well grid and the final coefficient of oil recovery in the development of fields in natural conditions using computer modeling systems. The research methodology consists of the use of existing scientific and methodological approaches to the processing of geological and commercial information in conditions of different densities in combination with the use of various advanced systems for identifying hidden patterns. Geological and statistical models have been defined for the oil deposits of the Famensk tier of the South Tatar arch of the Volga-Ural oil and gas province, allowing for the forecasting procedure for groups of objects identified during differentiation, subject to the dynamic density of geological and field information and various technical and economic indicators of field development. A comprehensive interpretation of the nature and degree of influence of geological and technological parameters on the amount of oil reserves production has been carried out. The need for preliminary differentiation of deposits based on identification with the subsequent use of the presented geological and statistical models to reduce the risks of making erroneous decisions during activities aimed at optimizing the development of analog facilities and rational extraction of residual oil reserves is reliably substantiated.
INVESTIGATION OF THE LOADS ON THE ROD PUMPING UNIT WHEN THE FLUID LEVEL IN THE WELL CHANGES
Authors: Urazakov K.R. , Tugunov P.M. , Timashev E.O.
Published: September 2024

The balance of the pumpjack, which is the most common type of drive for downhole rod pumps, has a significant impact on the efficiency of pumping operation of the well. It determines the degree of loading of the pumpjack, the amount of electricity consumed. However, during the operation of the well, the balance of the drive may be disrupted due to a change in the load on the balancer head due to the weight of the liquid column in the annulus and acting on the pump plunger. This situation is noted for wells operating in the periodic pumping mode, as well as when the inflow of reservoir fluid changes for various reasons (unstable inflow, deterioration of permeability of the downhole zone of the formation, changes in reservoir pressure during development and other reasons). The paper considers the issues of forming loads on the drive of rod installations at a variable dynamic fluid level in the well. A mathematical model is presented describing the formation of loads on the head of the pumpjack balancer, taking into account possible fluctuations in the dynamic level. Verification of the proposed model was performed and a good agreement was obtained between the model and field dynamometer cards. A field example shows that a decrease in the dynamic liquid level causes an increase in maximum loads on the balancer head by more than 10 %. It was found that due to a change in the balance of loads on the drive, the torque on the crank shaft increases when the rods move upwards, which leads to an increase in the asymmetry of loads on the drive and a violation of the balance of the rocking machine. The relevance of the use of dynamic balancing systems is substantiated, which allow maintaining the balance of loads acting on the drive in changing external conditions.
RANKING OF BASHKORTOSTAN DEPOSITS BY TYPES OF COMPLICATIONS FOR ASSESSING ECONOMIC COSTS
Authors: Samsykin A.V. , Asylgareev I.N. , Chinyaev A.V. , Trofimov V.E.
Published: September 2024

This article presents a review of the results of the analysis to identify the main types of complications characteristic of the deposits of the Republic of Bashkortostan. From field information and accumulated drilling experience, it has been established that among the main types of complications in the process of well construction in this area, the absorption of drilling fluid and grouting mixture of various intensities, starting from background values and ending with complete care, is the most significant and problematic from the point of view of its elimination. Taking into account the territorial features of the location of the deposits of the Republic of Bashkortostan, the main causes of the occurrence of acquisitions, divided into geological and technological components, have been identified. A percentage comparison of cases of absorption compared to other types of complications is given, confirming that the problem of prevention and elimination of absorption is very significant and relevant in modern drilling, both in general and with regard to the fields of Bashkortostan, in particular, requiring significant time and material costs to solve. The purpose of the article, which the authors strive to achieve, is to reduce and optimize the financial and time costs allocated to combat the absorption of drilling and grouting fluids. The authors have made an attempt to combine the deposits of Bashkortostan, located on large tectonic structures of the region, according to the similarity of the complications that arise, in order to simplify the assessment of the corresponding economic costs. Using the results of the analysis of lithological and stratigraphic sections of deposits and indicator dependencies obtained for the identified absorbing horizons, general similarity criteria were determined, according to which each of the considered deposits was assigned its own rank, and deposits with the same rank were grouped. The work carried out on the ranking of deposits will be useful to drilling specialists, who, using this information, can more accurately and efficiently develop and select appropriate sets of measures to prevent and eliminate the absorption of drilling mud. This article will also be of interest to specialists in the preparation of design estimates when evaluating the economic component.
EVALUATION OF EFFICIENCY OF OIL DISPLACEMENT BY WATER AND GAS AT VARIOUS MODES
Authors: Gutorov A.Yu. , Almuhametova E.M. , Badykov D.R. , Korobova A.V.
Published: September 2024

The purpose of the work is to analyze in detail the efficiency of oil displacement by various agents, such as water and gas, at different modes. During the study, various methods and technologies aimed at increasing oil recovery were considered, and the effect of various parameters on the efficiency of the process was studied.Particular attention was paid to the method of water-gas impact (HBV) using pump-ejector systems (PES), which provides a triple impact on oil formations by simultaneous or alternate injection of water and gas.Theoretical and experimental methods were used to conduct the study. The beginning of the work was the study and analysis of scientific sources on the issue of assessing the effectiveness of oil displacement. Further, laboratory tests were carried out to assess the effectiveness of oil displacement by various agents. Experimental studies were carried out on a two-phase and three-phase filtration unit. The main parameter measured was the coefficient of oil displacement by water and separation gas. The effectiveness of the impact of various modes of water and gas exposure was studied: alternating (cyclic) injection of water and gas with different cyclicity, simultaneous injection of water and gas, as well as injection of a fine water and gas mixture.Based on the results of the work, it was concluded that the degree of influence of wetting processes on the final displacement result is a critical factor. The following main points can be distinguished:- final value of oil displacement coefficient depends on selection of displacement agent;- in case of water and gas impact, the sequence of water and gas injection is of great importance;- the efficiency of oil displacement is highly dependent on the absolute permeability of the reservoir, as well as on the injection mode (sequential, simultaneous, cyclic).The results of the experiments can be useful for predicting the development of oil fields and choosing optimal methods for increasing oil recovery.The uniqueness of this article lies in the study of the possibilities of using multithreaded ejectors to increase the efficiency of hydrocarbon production.
INNOVATIVE INSULATING MATERIAL IN THE ASPECT OF ENSURING THE SAFETY OF HYDROCARBON TRANSPORTATION
Authors: Gladkikh I.F. , Gladkih M.A. , Solonin P.I. , Bahtizin R.N. , Kuznetsov V.S. , Sokolova V.V.
Published: September 2024

Ensuring continuous and safe operation of the main oil and gas pipelines is a critical aspect for preserving the environment and efficient use of hydrocarbon resources. More than half of accidents on trunk gas pipelines occur due to corrosion wear of the metal caused by insufficient protection of the insulation coating. The consequences of such incidents have a devastating impact on the environment and human lives: spilled oil and oil products pollute the soil, and leaking gas can lead to explosions and forest fires.Corrosion processes hiding under the coating due to poor adhesion and due to non-fulfillment of their functions by the coating lead to increased peeling of insulation and the formation of new corrosion foci, including stress-corrosion processes. Consequently, imperfect insulation coating and insufficient adhesion to metal are one of the main causes of accidents on main pipelines.The purpose of this work was to study and prove the chemical interaction of the functional groups of asmol insulation compositions with the metal surface. In the course of work, the following tasks were solved:- assessment of the ratio of initial adhesion parameters obtained in laboratory and route conditions and their values after 1.5 and 6 years of operation;- study of the IR spectrum in order to prove the presence of functional groups in the asmol material;- study of the protective capacity of the asmol coating structure in an aggressive corrosive environment at different temperatures.Methods were used to measure the quantitative adhesion of the anti-corrosion coating and the peel area during cathode polarization, in accordance with State Standard R 51164-98. The composition of the asmol material was studied by IR spectroscopy.It has been shown that functional groups, the presence of which has been confirmed by spectral analysis, of asmol material in the insulation coating make it possible to chemically adhere to steel. Indirect proof of this is the stability of the adhesion strength over time, the cohesive separation of the asmol coating in determining adhesion indicators under trace conditions and the relatively small area of coating detachment during cathode polarization.
STUDY OF TEMPERATURE FIELDS NEAR A WELL DURING FILTRATION OF VISCOPLASTIC OIL
Authors: Morozkin N.D. , Morozkin N.N. , Gallyamov V.V.
Published: September 2024

The work examines the time variation of fluid temperature during non-isothermal filtration of viscoplastic oil near a well. It is known that a characteristic feature of modern oil production is an increase in the share of hard-to-recover oil reserves, which include viscoplastic oils. According to their rheological characteristics, such oils are non-Newtonian liquids and, therefore, their filtration process is not described by Darcy’s linear law. When filtering fluids that are not described by Darcy's law, it is necessary to use nonlinear filtration laws, which make it possible to more adequately describe the processes occurring in productive formations when hydrocarbons are displaced from them. To describe the nonlinear filtration law, empirical formulas obtained by approximating data from laboratory experiments are usually used.In the works of V.V. Devlikamov and his co-authors provide experimental data on the dependence of viscosity on shear stress for high-viscosity oils. They have been shown to be approximated quite well by a sigmoid function. However, the problem then becomes significantly nonlinear. Subsequently, in order to simplify finding a solution to the problem of filtration of high-viscosity oil, experimental data were obtained by V.V. Devlikamov and his co-authors were approximated by broken lines.In this work, the experimental data are approximated by a sigmoid function, which allows for more accurate calculations. Assuming that the viscosity and density of oil do not depend on temperature, which is typical for natural development modes, the results of calculations of temperature changes over time near the well are presented. It is shown that the temperature of viscoplastic oil in the first hours after starting a well differs significantly from the temperature of Newtonian oil (oil with constant viscosity). Thus, if the temperature of Newtonian oil continuously increases, then the temperature of viscoplastic oil immediately after starting a well increases and coincides with the temperature of oil with constant viscosity, then drops and after some time begins to increase again. The work shows that such an unusual change in the temperature of viscoplastic oil over time is associated with a change in the zone of destruction of the formation structure.