bluuebunny/crossref_metadata_2025_split huggingface dataset:
Identifying features of the level of digitalization of banking services in different countries
Authors: Sultanova Menslu , Sultanov Akylbek , Zhangaliyeva Yelnaz , Zhanibekova Gaukhar , Ordabayeva Mainur , Zamanbekova Altynshash , Ibadildin Nurkhat , Primbetova Saule 
Published: November 2024

The object of the study is digitalization of banking services. The problem of assessing the level of digitalization of banking services in different countries is solved. The results obtained are:
– classification of countries by the level of digitalization of banking services: high level (China, England), medium level (USA, Sweden, Germany, Japan, Ukraine, Kazakhstan) and low level (Spain, Italy, India, Brazil);
– a reliable (R2=0.78) positive dependence of the level of digitalization of banking services on the ratio of non-cash payments to GDP and on the rating of favorable conditions for doing business was revealed;
– additional competitive factors were added to the model: the positive dependence of the level of digitalization of banking services on the ratio of non-cash payments to GDP (t=3.338) and on the rating of favorable conditions for doing business (t=3.250) was confirmed.
The obtained results are explained by the assumption of linear dependence of the level of digitalization of banking services, the volume of non-cash payments and Doing business rating and the construction of an econometric regression model of the dependence of the level of digitalization of banking services of a particular country on the factors affecting the development of digital technologies in the banking sector. The peculiarities of the results obtained consist in the development of a score assessment of the level of digitalization of banking services using three criteria derived from international statistics and its testing on 12 countries of different economic levels of development.
The practical significance of this study is the possibility of applying the findings to increase the level of digitalization of banking services in the amount and conditions appropriate to the national economy.
Development of Fe-Cr-C alloys with high Mn content for bone implant
Authors: Kartikasari Ratna , Kadiman Sugiarto , Muhfidin Rivan , Aziz Ihwanul , Triyono Triyono 
Published: November 2024

The object of this study is to combine the properties of Mn and the advantages of Fe-Cr-C to improve biomaterial compatible characteristics. Three alloys of Fe-Cr-C with compositions of 12 wt. % Mn, 16 wt. % Mn, and 20 wt. % Mn, were investigated. Microstructural analysis was carried out using a scanning electron microscope (SEM), and a Vickers hardness test kit was used to evaluate the hardness. The pin-on-disc method was used for the dry slide wear test, and the corrosion test was carried out using the three-electrode cell polarization method. The hardness value of Fe-Cr-C alloy increased by 28.7 % with the increase of Mn content from 12 wt. % (231.8 VHN) to 20 wt. % (298.4 VHN). The tensile strength value increased by 30.3 % with an increase in Mn content from 12 wt. % (522.69 MPa) to 20 wt. % (680.89 MPa), while the strain value decreased by 30.9 %. However, impact toughness did somewhat decline, from 0.213 J/mm2 at 12 wt. % Mn to 0.169 J/mm2 at 20 wt. % Mn. The wear rate results for Fe-Cr-C 20 wt. % Mn 0.000156 mm3/kg. show a reduction of more than 15 wt. % when compared to Fe-Cr-C 12 wt. % Mn because of an increase in the hard-intermetallic area. Additionally, corrosion resistance improved significantly, with the corrosion rate decreasing from 0.005814 mm/yr at 12 wt. % Mn to 0.001780 mm/yr at 20 wt. % Mn, demonstrating that higher Mn content reduces material degradation in corrosive environments. Based on the experimental results, Fe-Cr-C 20 wt % Mn alloy has the highest mechanical and corrosion resistance of the three types of alloys. Fe-Cr-C with high Mn alloys are promising candidates for application as biomaterials for bone implants by optimizing the Mn content and corrosion resistance
Development of a methodology for assessing the efficiency of an agribusiness enterprise in using digital technologies
Authors: Akhmetzhanova Nazym , Tapalova Assel , Gabbassova Zhumakyz , Shadiyeva Aigul , Akhmetova Gulistan , Onlassynov Yerlan , Saparbaev Marat , Yerzhanova Zhanar 
Published: November 2024

The object of the study is the activity of an agribusiness enterprise in using digital technologies. The problem of the methodology for assessing the effectiveness of using digital technologies by an agribusiness enterprise is solved. The following results were obtained:
– the author's methodology for assessing the effectiveness using of digital technologies by an enterprise of AIC based on expert evaluation and a system of indicators was developed. The assessment results are interpreted in accordance with the matrix of intersection of the digitalization index and the effect of digital technologies from Outsider (0–0.25; <1) to Leader (0.95–1; ≥1);
– the obtained concordance coefficient (76 %, χ2=41.9) indicates high consistency of the expert group, consistency and qualitative assessment in the process of testing the methodology;
– testing of the proposed methodology in Atameken-Agro JSC was successful and showed the validity and convenience of this methodology. The agro-enterprise became the leader in 2023 with the indicators of digitalization level – 0.83 and the effect of using digital technologies – 12.5.
The above results are explained by assuming the possibility of using the expert judgment method to evaluate the efficiency of using digital technologies by an enterprise and applying a decision matrix based on two indices.
A particular feature of the results obtained is the development of a methodology for assessing the level of digitalization in three main areas and its application in combination with the assessment of the economic effect of digital technologies.
The proposed methodology can be used not only by enterprises wishing to evaluate the effectiveness of digital technologies but also by stakeholders.
Development of conceptual provisions for implementing innovative technologies to quality standards of public passenger transport
Authors: Novikova Alla , Velisevych Mykola , Poberezhna Zarina , Symonenko Roman , Dehtiar Zoia 
Published: November 2024

This paper reports a study of the main principles for the formation of public passenger transport service quality standards. The object of the research is public passenger transport services. The task of the study is the development of conceptual foundations for the formation of quality standards using modern innovative technologies. It has been established that the main factor in achieving the quality of public passenger transport services is taking into account innovative technologies and compliance with the criteria and norms of EU standards.
Features in the functioning of public passenger transport in the world have been studied, including the use of information platforms for tracking the movement of transport routes, Internet applications, ensuring safety and compliance with environmental requirements. The criteria that serve as indicators of improving the efficiency of the quality of services have been defined, among the main ones are the availability of transportation, comfort, frequency of traffic, and waiting time, quality of service, as well as safety. A system of forming the quality of public passenger transport services has been proposed, which involves determining the needs and requirements of consumers of public passenger transport services, ensures the development of measures to improve the quality of services and their certification.
A comprehensive approach to the formation of the quality of public passenger transport services based on the introduction of innovative technologies has been formed, which could make it possible to determine the level of their innovative development, as well as ways to improve it. This approach takes into account the relationship between implemented measures, measuring the level of service quality and the distribution of obligations to ensure the level of services determined by quality criteria. This makes it possible to determine the required level of quality of public passenger transport services and to form a relationship between the level of innovative technologies and the stages of the approach.
The practical significance of the results is the design of tools that would ensure the improvement of the quality of public passenger transport services.
Development of kefir product with Bifidobacterium animalis subsp. lactis (BB-12) activated by Sanguisorba officinalis L. extract
Authors: Utebaeva Aidana , Yevlash Viktoriia , Gabrilyants Eleonora , Abish Zhansaya , Aitbayeva Aigerim 
Published: November 2024

This study addresses the challenge of enhancing the activation of Bifidobacterium animalis subsp. lactis (BB-12) to improve the quality and functionality of kefir-based products. The objective was to develop a kefir product enriched with Bifidobacterium animalis subsp. lactis, activated using an extract of Sanguisorba officinalis L., a natural antioxidant, to reduce activation time and boost probiotic efficacy.
Two kefir samples were prepared: a control and an experimental product enriched with Bifidobacterium animalis subsp. lactis activated by Sanguisorba officinalis L. at 10⁻⁵ g/cm³ concentration. The experimental sample exhibited a significant increase in Bifidobacterium animalis subsp. lactis count, reaching 9.52 lg(CFU/cm3), within 30 minutes at 37±1 °C, outperforming the control. This rapid activation led to improved physicochemical properties, including enhanced flavor, consistency, and a slower increase in titratable acidity over 14 days, indicating prolonged shelf life. The amino acid profile was enriched, with higher levels of essential amino acids such as valine, leucine, methionine, as well as increased water-soluble vitamins including riboflavin, ascorbic acid, and pantothenic acid. The slower decline in Bifidobacterium animalis subsp. lactis population during storage further highlighted the probiotic stability of the enriched kefir.
These findings demonstrate that activating Bifidobacterium animalis subsp. lactis with Sanguisorba officinalis L. extract enhances the nutritional and functional qualities of kefir. This product holds potential for commercial application in the functional food industry, offering consumers a probiotic-rich, nutritionally superior fermented dairy option
Enhancing investment attractiveness in wartime: a comprehensive analytical approach
Authors: Karpushenko Mariia , Momot Tetiana , Kraivska Inna , Shapoval Galyna , Karpushenko Oleg 
Published: November 2024

The study focuses on analyzing the changes in investment attractiveness during wartime, when certain regions are occupied or destroyed, some enterprises are non-operational due to damaged production facilities, there is a significant outflow of labor force, and energy issues arise.
The core issue of the study lies in the necessity of considering the complex political and economic situation’s impact on Ukraine’s investment climate. This requires developing more adaptive assessment methods that can account for both economic and socio-political risk factors. In such circumstances, reliable data is hard to obtain, which prompted the goal of substantiating the factors that characterize the country’s investment attractiveness. To provide a comprehensive assessment of investment attractiveness, an integrated indicator is proposed, which combines data reflecting investment attractiveness, including indices calculated by leading global organizations. The analysis includes such indices as the Innovation Development Index, the Corruption Perception Index, and the Judicial System Index. As a result, an average value of the changes was calculated, showing a comprehensive shift in the indicators related to investment attractiveness. The analysis using the integrated indicator demonstrated that investment attractiveness has decreased by 10 % during the war, but certain indicators, such as the Corruption Facilitation Index and the Judicial Index, have actually improved during the war.
The results obtained can be used to develop risk management strategies for both international and local investors. They can also serve as a basis for creating recommendations for improving the investment climate, which in turn can attract capital and stimulate economic growth under challenging conditions
Devising an analytical method for estimating aircraft positioning accuracy by an infocommunication network of optoelectronic stations
Authors: Tevyashev Andriy , Zemlyaniy Oleg , Shostko Igor , Kostaryev Dmytro , Paramonov Anton 
Published: November 2024

The object of this study is the monitoring processes of airspace in the visible and infrared frequency ranges using an infocommunication network of optoelectronic tracking stations.
The problem addressed is the assessment of accuracy in positioning aerial vehicles in airspace, considering random and systematic errors in video surveillance.
The proposed method allows for the analytical evaluation of variance in the coordinates of aerial vehicles in airspace at any given moment, depending on the variance in errors from all components of the video surveillance process.
The following results are reported:
– mathematical models for both open and covert video surveillance by the infocommunication network of optoelectronic stations based on the trajectories of aerial vehicles, which enable the estimation of their coordinates for each moment of video surveillance.
– analytical relationships between the variance of geolocation of aerial vehicles and the variance of errors in all components of the video surveillance process.
A key feature of the method is its practical independence on the type and size of aerial vehicles. The method requires the availability of metrological characteristics of the optoelectronic station instruments and synchronized measurements of azimuth, elevation angle (for covert), and slant range (for open video surveillance).
The numerical values of the root mean square deviations of the positioning errors of aerial vehicles under various video surveillance conditions range from 0.1 to 0.35 meters, confirming the effectiveness of using the infocommunication network of optoelectronic stations as an instrumental tool for high-precision trajectory measurements.
Revealing the closeness of publication ties in scientific cooperation taking into account scientific productivity based on the Time-Weighted PageRank Method with Citation Intensity
Authors: Biloshchytskyi Andrii , Kuchanskyi Oleksandr , Andrashko Yurii , Mukhatayev Aidos , Toxanov Sapar , Faizullin Adil , Yurchenko Nataliia 
Published: November 2024

The object of this study is the processes related to the assessment of the closeness of publication ties among scientists and taking into account their productivity related to scientific activity. This is necessary to increase the efficiency of management of research projects. To this end, the PR, TWPR, TWPR-CI methods for calculating scientific productivity estimates of scientists were described. In particular, the TWPR-CI method gives preference to those scientists whose works were more intensively published and cited during the last period of time, which is important for the formation of the composition of the executors of scientific research projects. The method for calculating the closeness of publication ties among scientists or average asymmetric tie strength was also described. The verification of dependence between the evaluation of the closeness of publication ties among scientists and their scientific productivity was carried out based on the analysis of the citation network of scientific publications and the network of scientific cooperation. The networks are built on the basis of the open access Citation Network Dataset (ver. 14). The dataset contains information on more than 5 million scientific publications and more than 36 million citations to them. The correlation analysis revealed the presence of a weak inverse relationship between these estimates. However, the weakness of the connection allows us to state that for this case there is no established correlation between the assessment of scientific productivity and the assessment of the closeness of publication ties. That is, the hypothesis that the weak connection between scientists makes it possible to increase the productivity and innovativeness of their publications was not confirmed. The results allow for a systematic approach to the process of evaluation and planning of the results of research projects, as well as the formation of the composition of their executors
Design of the predictive management and control system for combined propulsion complex
Authors: Budashko Vitalii , Sandler Albert , Khniunin Sergii , Bogach Valentyn 
Published: November 2024

The object of this researching is the process of maneuvering a sea-based vehicle under compressed conditions, which requires one hundred percent reserve of thrusters (THRs) of various modifications and locations. The main problem is the provision of energy-efficient control over the ship's motion at low speed in the horizontal plane using a high-level predictive controller. The hierarchy of the motion control system (MCS) is usually divided into several levels with the help of a high-level motion controller and the THR motor control distribution algorithm. This allows for a modular software structure where a high-level controller (HLC) can be designed without using comprehensive information about the THR motors. However, for a certain reference of THR configurations, such a decoupling can lead to reduced control performance due to the limitations of HLC regarding the physical constraints of the vessel and the behavior of MCS.
The main results of the researching are methods to improve control performance using a nonlinear model predictive control (MPC) as a basis for the designed motion controllers due to its optimized solution and ability to consider constraints. A decoupled system was implemented for two simple motor tasks showing dissociation problems. The shortcomings were eliminated through the development of a nonlinear MPC controller, which combines the motion controller and the distribution of control over THR motors. To preserve the discrete modularity of the control system and achieve adequate performance, a nonlinear MPC controller with time-varying constraints was designed. This has made it possible to take into account the current limitations of the THR control system, increase the accuracy of control, and reduce the response time of the system by 10 %.
Assessment of the degree of ripeness of oriental persimmon fruits (Diospyros kaki L.) by tensor stress
Authors: Ismayilova Melahet , Khalilov Mushfiq , Mammadaliyeva Maryam , Kazimova İlhama , Maharramova Sevinj , Gasimova Afet 
Published: November 2024

The object of the study is persimmon fruits, which occupy an important place among subtropical crops and have a wide development prospect. Since these fruits are difficult to process, they are mainly used fresh. The usefulness of these fruits is associated with their chemical composition. This composition includes biologically active substances, microelements, various mono- and polysaccharides, saturated and unsaturated fatty acids, etc. The complexity of the technological processing of persimmon fruits is associated with its astringent taste, which is determined by the amount of polyphenolic compounds. In general, the strength of raw materials is manifested not only in the degree of ripeness, but also in its technological processing processes, which are the object of the study. From this point of view, the hardness of persimmon fruits acts as a subject of study. Data on the property of fruits and vegetables associated with the stress-hard state is a solution to the problems that arise when expanding the range of finished products. For example, it has been established that at the stage of commercial ripeness, the hardness of persimmon fruits is no more than 12.3 kg/cm2. And this indicator changes downwards over time, i.e. to 1.5÷2.0 kg/cm2. Consequently, the possibility of using fruits for the production of various food products is expanding.
The study of raw materials according to the laws of solid state physics is explained by its polymer structure. Therefore, the ripening of raw materials depends on the monomerization of this structure. In such decomposition, a condition is created for the combination of various mono-substances, for example, in persimmon fruits, monophenols combine with monosaccharides, which results in a decrease or disappearance of the tart taste of the raw material. Therefore, determining the degree of raw material ripeness by changes in stress will allow to predict its destruction in advance.
Choosing an efficient mass exchange apparatus for desorption of hydrogen sulphide from reservoir and drainage waters
Authors: Helesh Andriy , Kalymon Yaroslav 
Published: November 2024

Industrial wastewater is often contaminated with hydrogen sulfide and sulfides. This poses significant risks to both the environment and human health and life as H2S is extremely toxic. Therefore, water purification from it is vital, and the choice of an effective desorber device is an urgent issue.
This paper investigates the process of H2S desorption from wastewater in mass exchange devices with a continuous bubbling bed (DCBB), a column with falling plates (CFP), and a horizontal device with bucket-like dispersers (HDBD). To analyze the kinetic and technological characteristics of the process, the following indicators were selected: the product of the mass exchange coefficient on the contact surface of phases (K·F), reduced to 1 m3 of the volume of the apparatus, and the degree of hydrogen sulfide desorption.
The most complete desorption of hydrogen sulfide occurs at pH≤5. For practical needs, it is suggested to acidify the water to pH=5.5...6.0. It was established that the partial pressure of H2S increases linearly with increasing temperature, and an increase in salinity from 2...4 to 130...160 kg/m3 leads to its increase by 1.45...1.5 times.
The best desorption indicators can be achieved in HDBD at pH=4.97. The efficiency of cleaning in CFP and DCBB is significantly affected by the specific air flow rate. The highest values (K·F) per 1 m3 that were achieved in desorbers are, mol/(s·Pa·m3): HDBD – 1.94·10-5, in CFP – 5.55·10-6, DCBB – 6.9·10-6. The ratio of the product (K·F) in HDBD to CFP is 3.5, and in HDBD to DCBB 2.8. It was possible to achieve the maximum degree of desorption of 37.8 % in DCBB; in CFP, this indicator is 74.1 %, and in HDBD – 77.7 %. Experimental studies have generally confirmed the effectiveness of using HDBD, and the results obtained under production conditions on real drainage and reservoir waters could find be practically implemented in hydrogen sulfide utilization technologies