Unified System Research Articles

Concurrent and sequential coupled optimization design of a transonic compressor blade with axial slot casing treatment

This paper explores the optimization of the interaction between the rotor and axial slot casing treatment (ASCT) to enhance both efficiency and stability margins. Previous studies primarily focused on rotor tip optimization, often compromising flow in non-tip regions and reducing overall rotor performance. To address these limitations, this study introduces a new optimization framework integrating full-span 3D blade design with a semicircular axial slot, utilizing both sequential and concurrent optimization strategies. The sequential approach first optimizes blade geometries, followed by ASCT adjustments, while the concurrent approach treats the blade and ASCT as a unified aerodynamic system. Compared to prior studies focusing exclusively on tip-only 3D shape optimization, results indicate that sequential coupled optimization improves the stall margin by 13.32% and efficiency by 0.05%, whereas the concurrent strategy further enhances performance, shaping the blades into an inverse S form, reducing efficiency losses from 0.12% to 0.02%, and increasing the stall margin increment from 14.88% to 21.83%. These findings demonstrate the significant performance gains achievable through coordinated rotor and ASCT design.

A - 4 The Potential Applications of Software Supporting the Early Detection of Cognitive Disorders and Dementia in Diagnostics and Prevention

Abstract Objective In Hungary, the process of diagnosing dementia is slow and time-consuming. Currently, there are no well-developed systems and strategies at the local level for screening, and there is no artificial intelligence algorithm that could determine early signs of dementia based on the patient’s digital behavioral patterns. Methods Two PILOTs were conducted using the PreDem platform. Over the PILOTs’ duration (2021.09.01.-2024.04.09), 61,902 test data were analyzed. The 259 participants completed SDMT-type tests, Stroop tests, and memory/word games. Results We established a unified system for task evaluation, facilitating cross-test result comparisons. Participants (n = 43,902) were grouped into three categories: 1st - presumed dementia patients (13,932), 2nd - diagnosed MS patients (16,175), and 3rd - presumably normal population (13,795). Comparing the first two groups to the normal population revealed significant differences, vividly illustrated by density functions. A key finding is the substantial improvement in individuals dealing with memory disorders and forgetfulness through regular cognitive game performance. Conclusion Study results reveal the PreDem platform’s potential as a valuable tool for early dementia detection and prevention. Combining cognitive tests and artificial intelligence, the platform can successfully identify early signs of dementia and cognitive impairment (90% accuracy), potentially leading to early diagnosis, treatment, and improved quality of life for patients and families.

Experimental Study on the Suspending Mechanism of Suspending Agent in Coal-Based Solid Waste Slurry for Long-Distance Pipeline Transportation

The transportation of coal-based solid waste filling slurry (CSWFS) through pipelines for underground goaf injection is essential for enhancing mine safety and promoting green, low-carbon coal mining. To address the issue of pipeline blockage caused by the suspension sensitivity of CSWFS during long-distance transportation, this study proposes the addition of the suspending agent hydroxypropyl methyl cellulose (HPMC) to transform the filling slurry into a stable suspending slurry. The mechanism by which the suspending agent modifies the rheological property of CSWFS was elucidated and verified. Firstly, an evaluation index system for the suspending state of CSWFS based on the “experimental test and theoretical calculation” was established. The values for layering degree, bleeding rate time-loss, and the corresponding average time-loss rate over 0 to 120 min of A1–A5 CSWFS were recorded as 24 mm–2 mm, 3.0–0.2%, 252.4–54.2%, and 149.6–14.6%, respectively. The concentration gradient evaluation result, C/CA = 0.91 (≥0.8), confirmed that the suspending agent maintained a stable suspending state over time for CSWFS. Secondly, it was demonstrated that the suspending agent HPMC modified the rheological property of A1–A5 CSWFS by increasing its plastic viscosity, which strengthened the viscous resistance to particle settling, thereby transforming a semi-stable slurry into a stable one. Additionally, the formation of a spatial suspending network by the suspending agent ensures that no pipeline blockage accidents occured in practical engineering applications. Furthermore, the XRD and SEM tests were utilized to verify the microstructure of the top (T) and bottom (B) samples in A4 block. It was concluded that the type of hydration products, occurrence forms, lapping compactness, and microstructural development were consistent, ultimately forming a high-strength, dense, hardened filling block. Finally, numerical simulation confirmed that the addition of suspending agent in A4 slurry formed a comprehensive spatial suspending network and a well-structured, unified system. This is one effective approach which could contribute to addressing the technical issue of pipeline blockage during long-distance pipeline transportation.

The cell rejuvenation atlas: leveraging network biology to identify master regulators of rejuvenation strategies.

Current rejuvenation strategies, which range from calorie restriction to in vivo partial reprogramming, only improve a few specific cellular processes. In addition, the molecular mechanisms underlying these approaches are largely unknown, which hinders the design of more holistic cellular rejuvenation strategies. To address this issue, we developed SINGULAR (Single-cell RNA-seq Investigation of Rejuvenation Agents and Longevity), a cell rejuvenation atlas that provides a unified system biology analysis of diverse rejuvenation strategies across multiple organs at single-cell resolution. In particular, we leverage network biology approaches to characterize and compare the effects of each strategy at the level of intracellular signaling, cell-cell communication, and transcriptional regulation. As a result, we identified master regulators orchestrating the rejuvenation response and propose that targeting a combination of them leads to a more holistic improvement of age-dysregulated cellular processes. Thus, the interactive database accompanying SINGULAR is expected to facilitate the future design of synthetic rejuvenation interventions.

Land-Based Carbon Effects and Human Well-Being Nexus

In light of international climate agreements and the Sustainable Development Goals (SDGs), there is a growing need to enhance the understanding of the linkages among land use/cover change (LUCC) and its carbon effects (CEs), as well as human well-being (HW). While existing studies have primarily focused on the impacts of LUCC on CEs or ecosystem services, there remains a gap in systematically elucidating the complex relationships among LUCC, CEs, and HW. This paper presents a comprehensive review of the nexus between land-based CEs and HW, examining: (1) the correlation between LUCC and CEs, encompassing methodologies for investigating LUCC CEs; (2) the association between CEs and HW, introducing the concept of “low-carbon human well-being” and evaluation framework; and (3) the proposed framework of “LUCC-CEs-HW,” which delves into the intricate connections among three elements. The study identifies research gaps and outlines potential future directions, including assessments of LUCC CEs and low-carbon HW, exploration of the “LUCC-CEs-HW” nexus, and the development of standardized measurement approaches. Key opportunities for further investigation include establishing a unified evaluation index system and developing scalable methods. This paper elucidates the relationships among LUCC, CEs, and HW, offering insights for future works.

Multi-modal fusion deep learning model for excavated soil heterogeneous data with efficient classification

Multimodal fusion, a cutting-edge method aiming to integrate heterogeneous data for prediction tasks, has received limited attention in geotechnical engineering. This study focuses on classifying excavated soils with large quantities rapidly and finely. By using an excavated soil information collecting system at the largest soil transferring platform in China, 3,243 groups of multi-source heterogenous data were created, including soil images, spatial series data of cone index curves, time series data of TDR waveforms, discrete net weight data, and textual descriptions of soil morphology. After data augmentation, a big dataset containing 23,122 sets with labels based on the Unified Soil Classification System, moisture content, and mineral composition was created. Multimodal deep learning models were trained using different fusion strategies: 7 early fusion, 3 intermediate fusion, and 2 late fusion cases. Performance metrics were evaluated, including loss, accuracy, F1 Score, precision, recall, specificity, NPV, FPR, and AUROC. Results showed that intermediate fusions performed best, while late fusions performed the poorest. The two-stage intermediate fusion with five modalities achieved the best results, achieving an accuracy above 0.99 on the test set. This multimodal fusion approach effectively explores the correlation between multi-source heterogeneous data of soils, leading to scientific and engineering value in geotechnics.

Secret committee of high political surveillance in Russia and Polish emigration (1837–1839)

The article analyzes the history of the creation and the activities of the «Secret committee of high political surveillance» (1837–1839) – the Russian interdepartmental body of international policing in the era of tsar Nicholas I, which is unknown in the historical literature. The paper introduces the minutes of the sessions of this body and the interdepartmental correspondence attached to them from The State Archive of The Russian Federation (GARF). These sources expand on the Russian empire’s system of international policing and highlight the Polish emigration’s history from the viewpoint of the Russian secret police, which wasn’t sufficiently covered in the historiography of the Polish national movement. The Committee examined intelligence on the Polish political emigration, which was formed after the failure of the November Uprising of 1830–1831 in Congress Poland. Alexander Benckendorf, the chief of the III Section of His Imperial Majesty’s Own Chancellery, was the chairman of this committee. The representatives of the War and Foreign Ministries took part in its meetings. The Committee corresponded with Congress Poland’s viceroy Ivan Paskevich and with the governors of the border provinces of Russia, as well as with the Prussian and Austrian authorities. The analysis of the minutes from the sessions of this committee shows that this body was exclusively consultative. It was an attempt to create a unified interdepartmental system of intelligence exchange on the activities of the Polish emissaries.

ISSUES OF PROVIDING GUARANTEES AND SOCIAL PROTECTION FOR EAEU LABOUR MIGRANTS

Background: Today, the Eurasian Economic Union (hereinafter the EAEU) has formed its own labour market; however, in the current international environment, issues related to ensuring the health protection of migrants and their access to employment persist. Despite ongoing efforts within the EAEU to develop and deepen Eurasian integration and improve the regulatory framework, there is a need in the age of digitalisation to develop better access for workers to social protection and medical support systems. The relevance of this scientific article lies in the presence of problematic issues related to the fact that many migrants are not registered and lack the documentation to protect them legally and financially; this situation contributes to the development of informal employment and low labour productivity. Although the EAEU countries have established working and socio- economic conditions, the issue of ensuring health protection, access to work, and social protection for labour migrants remains unsolved. Methods: This article employs various methods of scientific cognition, including historical and legal analysis, comparative legal study, induction and deduction, as well as analysis and synthesis. It also applies the acts and regulations of the ILO. What is the role of protecting the socio-economic and labour rights of migrant workers as the main task of receiving states? In law enforcement practice, to what extent do the provisions of international agreements on the organised hiring of workers between receiving countries and countries of origin of migrants ensure the adaptation of migrants to the legal regime of the host country, the participation of migrants in the functioning of civil society institutions, and the monitoring of migration processes? How does national regulation of labour migration in integration associations of states rationally organise their actions on the principles of national treatment for migrant workers? Labour migration strengthens integration unions, creating strong social ties and developing civil society institutions within the boundaries of integration associations. Since state sovereignty is inextricably linked to the protection of the interests of fellow citizens in regulating labour migration, all states participating in regional integration are called upon not only to protect the rights of migrant workers but also to provide all conditions for migrants to fulfil their obligations to civil society. The study examined the free movement and provision of labour and social guarantees for labour migrants in the EAEU and compared their situation in the EU. It also surveyed labour migrants in the EAEU by questioning workers in education, medical care, and various private sectors. This article is based on the results of this study. This article examined the challenges in providing guarantees and social protection for EAEU labour migrants. It proposed improvements to legal regulatory mechanisms and outlined recommendations for improving and expanding opportunities for free movement while better safeguarding the social and labour rights of migrants in the EAEU. The study’s primary objectives were as follows: - Examining the provisions of the ILO Convention on migrant workers. - Collecting and analysing data on labour movement across the EAEU - Analysing international EU treaties regarding the legal status of migrant workers - Interviewing migrant workers in the EAEU on issues related to their provision of rights and guarantees under the EAEU Treaty. Results and conclusions: This study highlights the need to organise safe labour migration, provide labour migrants with full access to digital services, improve the system of vocational and technical education in line with labour market demands, as well as develop and implement a unified system for ensuring the safety of workers and their families. Successful adaptation in the host country is identified as a critical factor for both labour migrants and their families. The authors recommend adding a dedicated chapter to the EAEU treaty that would comprehensively address labour and social rights, along with their guarantees.

ACTUAL ISSUES OF REPRODUCTION OF FIXED ASSETS OF DOMESTIC ENTERPRISES

The article touches upon topical issues of reproduction of fixed assets of domestic enterprises in terms of their accounting, audit and strategic aspects of management. The study emphasises the necessity of constant renewal of fixed assets to ensure competitiveness, increase of labour productivity and quality of products. The main purpose of the study is to identify the key problems of managing the reproduction of fixed assets and formulate ways to solve them. To achieve the research objective, the methods of analysis and synthesis, comparative analysis and empirical methods were used. The paper emphasises the importance of improving accounting and auditing, considers the concepts of physical and moral wear and tear, as well as depreciation of fixed assets. It is determined that improving the depreciation policy is an important factor in increasing the investment activity of business entities. It is substantiated that internal audit plays an important role in providing reliable information on the process of reproduction of fixed assets, which contributes to the effective management of enterprise resources. The author defines the tasks of internal audit, including verification of the correctness of recognition and assessment of fixed assets restoration costs, reliability of information on depreciation charges, depreciation and residual value of fixed assets, control over accounting of lease transactions and transactions with investment property. The publication also discusses the strategic aspects of fixed assets reproduction, emphasising the importance of an innovative approach to improving the competitiveness of enterprises. It is noted that the implementation of innovative reproduction requires an integrated approach, including the construction of a mechanism that ensures the orientation of the market and the macroeconomic model of management to innovative forms of reproduction of fixed capital. The article pays special attention to the problems of financing innovative projects and cooperative technological chains. The article concludes by emphasising the need to form a comprehensive mechanism at the macro level, focused on the priority reproduction of fixed asset systems using the latest technologies. The paper emphasises the importance of creating a unified system of innovation and investment activities of enterprises, taking into account the interests of all participants. It stresses the expediency of using both market and non-market incentives for the reproduction of fixed assets, which will facilitate the production of competitive products and ensure the sustainable development of enterprises in the market.

On the development of HARMONY Machine learning (ML) IONO demonstrator

HARMONY (macHine leARning to MOdel gNss sYstems) demonstrator is intended to overcome the limitations of the simulations based on a GNSS macro-model through the implementation of a ML model that models a GNSS system, providing better performances once trained to predict its behaviour. Considering the wide spectrum of the GNSS features and attending to the GNSS User needs, the envisaged IONO ML demonstrator focuses on Ionospheric slant total electron content (STEC) modelling. ML IONO demonstrator is trained using input data from different available public data sources. HARMONY ML-IONO demonstrator is an advanced ML-engine able to model ionosphere behaviour, and is designed following the GNSS user needs, while the development as well as implementation path followed is set by the existing and available data. This paper aims to provide a summary of the implementation and design of HARMONY demonstrator, including the definition of interfaces and the explanation of its main components. Additionally, detailed analysis of the design choices selected for each use as well as the development of the ML models is included. To facilitate the explanation of each component as well as the relations interconnecting them, the ML-demonstrator is referred to and treated as a unified system.

Investigation of distribution system modification using operation voltage unification in order to decrease interruptions in dust climate

Many events in power networks which caused failure and outage of subsystems have root in design and initial selection of equipment and their specification. This concern will be important while the any kind of expanding and acclimation plan need to be executed to strengthen the existing infrastructures in order to provide better condition with regard to satisfied criteria. In Iran one of the most adverse environmental occurrences known Fine Dust, may force several distribution utilities to be changed due to new technical requirements. Medium voltage level regrading in way to decrease or unification of distribution system have been proposed in this paper to reach reduced faults and fast replacement of equipment in damaged situations. Voltage level changing and selection have been investigated in order to increase the network strengthen and reselection of equipment and redesigning critical sections of system against natural events that called fine dust with aim to attain an upgraded distribution utility. Operating of existing 33 kV and 11 kV network in 20 kV level and investigation of changing process have been done for Ahvaz medium voltage distribution system as a case study in these paper's sections. Calculations and results will be contained maximum current capacities in different line conductors, insulation and air clearances assessment, poles acceptable mechanical values, short circuit current and protection coordination for changing voltage level in distribution system.

Spatio-temporal evaluation of ecological security of cultivated land in China based on DPSIR-entropy weight TOPSIS model and analysis of obstacle factors

Cultivated land’s ecological security ensures human well-being and is critical to global food security. However, the unchecked expansion and excessive exploitation of agricultural resources have led to considerable land degradation issues in China, including soil erosion, contamination, and environmental degradation, raising concerns over the cultivated land ecological security (CLES). Current research on cultivated land (CLES is relatively limited, particularly at the national level across different provinces. In addition, a unified and comprehensive CLES evaluation index system has yet to be formed. To fill this research gap, we construct a CLES evaluation system with 35 indicators from three dimensions of “society-natural-economy” based on the DPSIR model framework and entropy weight TOPSIS model. Simultaneously, we conducted a spatial–temporal analysis of CLES in 31 provinces of China from 2012 to 2021 and applied the obstacle degree model to analyze the main factors impeding the CLES in China. The results showed that: (1) During the study period, the CLES and its subsystems showed a good development trend. Spatially, the CLES in China presents a regional difference of “high in the east and low in the west” and a significant regional difference among provinces. (2) The spatial CLES in different provinces of China presents a significant positive correlation, and the spatial clustering effect of CLES is gradually strengthening. The “High-High” clusters are mainly distributed in the northeast and eastern regions, while the “Low-Low” clusters are mainly located in the western region. (3) From the perspective of the criterion level, the state subsystem and the impact subsystem are the main obstacles hindering the improvement of CLES in China. At the indicator level, the common obstacle factors affecting the enhancement of CLES across provinces in China include soil erosion control intensity, number of green food certifications, per capita agricultural loans, per capita cultivated land area, and per capita grain production. Our research results can provide practical policy reference for further improving the ecological protection of cultivated land.

Эволюция антикризисного управления организацией в современных условиях

The article deals with the dynamics of the theory of anti-crisis management of the organization (ACM) in modern conditions. The basic classifications of types of anti-crisis management are considered, their comparative analysis is carried out, conclusions are made that in modern conditions anti-crisis management of an organization is inseparably connected with its sustainable development, therefore, it comes to a new level, becoming a part of strategic management and especially actual today change management. The levels of anti-crisis management of the organization are marked out. The article pays special attention to the ambiguity of interpretation of the concept of «crisis of the organization». It is necessary for formation of effective anticrisis strategy of the organization to understand the essence of its basic concept – crisis, the research of its genesis and modern interpretations. The study of economic literature has shown that the understanding of crisis is ambiguous. There are two main positions have been formed in studies on the problems of crisis management to understand the nature of the crisis. One group of authors (E.M. Korotkov, T.N. Rogova, V.K. Krutikov, K.V. Baldin, S.E. Kovan, etc.) focuses on the negative manifestations of the crisis, its destructive function. Other researchers (A.S. Bolshakov, V.Y. Zakharov, A.D. Chernyakhovsky, N.D. Koryagin, A.S. Lifshits, V.M. Pishchulov, etc.) consider crises as a contradictory phenomenon and analyse their positive sides and creative role. The dual nature of crises predetermines the multi-purpose orientation of ACS and multifunctionality of its content. This is the peculiarity of the anti-crisis management system. The unified ACM system includes tools for crisis prevention, diagnosis, overcoming the crisis, enterprise restructuring strategy, methods of crisis prevention, methods of forecasting and planning, strategic management, as well as non-standard methods of personnel management. The author notes that crisis management tools should be integral components of sustainable enterprise development strategies.

Vehicle Safety Application through the Integration of Flood Detection and Safe Overtaking in Vehicular Communication

Road safety in Malaysia is a major concern due to frequent floods and accidents caused by overtaking. These issues result in significant injuries and losses. In this paper, we introduce a new system called the Safe Driving Tool (SDT). The SDT integrates a Flood Detection System (FDS) and a Vehicle Overtaking System (VOS) using Long-Range (LoRa) communication technology. The FDS continuously monitors water levels in flood-prone areas. It alerts drivers about potential hazards through vehicle-to-infrastructure (V2I) communication. Simultaneously, the VOS enables safe overtaking maneuvers. It does this by exchanging information with nearby vehicles through vehicle-to-vehicle (V2V) communication. Through testing and experimentation, we have shown that the SDT system effectively reduces accident risks and losses associated with floods and overtaking. The system's performance under various conditions confirms the reliability and effectiveness of LoRa communication technology in enhancing vehicular safety. This study represents a significant advancement in road safety. It combines flood detection and overtaking assistance into a single unified system, addressing two major causes of road accidents in Malaysia. The integration of V2I and V2V communication provides a comprehensive solution that improves driver awareness and decision-making. This ultimately leads to safer driving environments and enhanced driver convenience. Doi: 10.28991/CEJ-2024-010-09-015 Full Text: PDF

Vibrational Feedback for a Teleoperated Continuum Robot with Non-contact Endoscope Localization

Abstract Limited or absent haptic feedback is reported as a factor hindering the continued adoption of surgical robots. This article presents a proof of concept for vibrotactile feedback integrated into a continuum robot to explore whether such feedback improves spatial perception in surgical settings. The robot is equipped with a capacitive sensor for noncontact endoscope localization, enabling spatial awareness of the robot’s tool center point (TCP) within the surgical environment. The data from the sensor is processed and transmitted to a bracelet worn by the user, which generates vibrotactile feedback. The bracelet contains four vibration motors providing tactile cues for navigation and positioning of the robot’s TCP. All subsystems are integrated into a unified system to deliver vibrotactile feedback to the user. When the user maneuvers the TCP of the robot near an object, they receive vibrotactile feedback via the bracelet. Thereby, the intensity of vibration increases as the TCP approaches the object, and the direction of the obstacle is mapped on the bracelet. Initial functional tests were performed and prove the functionality of the proposed system.

Performances of the e-Nauka Portal in the Republic of Serbia and Its Significance for Researchers

In recent years, digitalization has been recognized as a significant and necessary process that leads to better results, both in the education and in the scientific research. The legal and strategic framework in the Republic of Serbia follows the modern trends of the concept of open science, open knowledge, digital transformation and a unique digital format of scientific production. The Ministry of science, technological development and innovation, in cooperation with the Office for information technology and electronic administration, created the necessary conditions for dynamic the development of the scientific research and innovation system, especially in relation to the digitalization process and the establishment of an information platform, in the form of a unified national information system of scientific research activities: eNauka [eScience]. The concept of eNauka is an innovative tool that improves the efficiency and transparency of scientific processes in Serbia. The eNauka portal in the Republic of Serbia is dedicated to promoting scientific research, innovation and academic achievements within the scientific community of the Republic of Serbia. This portal provides access to scientific articles, research papers and academic publications authored by researchers from Serbia, which enables the spread of knowledge and the encouragement of scientific cooperation within the country. The eNauka portal was opened in full capacity for all active researchers in Serbia on July 3, 2023, and contains data on scientific research organizations in the Republic of Serbia, researchers and their scientific results. The goal of this paper was to bring closer to the academic community the capabilities and performance of the eNauka portal, its structure, the way and importance of data editing, with special reference to issues related to researchers’ profiles and their editing. The paper is methodologically based on a theoretical, preliminary desk analysis of relevant contemporary standpoints in domestic and foreign theory, a normative analysis of current legislative sources, an inductive and deductive approach in researching the operational performance and advantages of the eNauka portal, as well as the quantitative analysis of relevant statistical indicators of relevant parameters regarding the profile that each researcher has on the eNauka portal. The results include the analysis of data related to editing the researcher’s profile and the opportunities offered by the eNauka portal. The conclusion refers to the importance and advantages of the eNauke portal. Finally, it should be noted that one of the key functions of eNauka is the evaluation of scientific results. More precisely, the system provides the possibility of monitoring and evaluating research results, which is of great importance for the academic community.

조선시대 조선과 명의 국경인식과 조명관계

After the founding of the country, Joseon actively established foreign relations in order to stabilize the legitimacy of the dynasty and the ruling system. Joseon established friendly diplomatic relations with the Ming and established diplomatic relations with the Jurchen and Japan. The external relations of the Joseon were shaped by the international situation, and it formulated and implemented an active foreign policy to eliminate political and military threats. The Ming, which replaced the Yuan as the central state in East Asia, sought to establish a unified governance system centered on the emperor domestically during the reign of the Hongwu Emperor(洪武帝) and externally to form an international order centered on the Ming. The Ming recognized Joseon in the northeast as a neighboring country and implemented an active policy of conciliation in order to bring the Jurchen, who lived in Liaodong and the northern part of the Korean peninsula, under the influence of the Ming. Specifically, the Ming established a military government system to actively govern Liaodong and set up a loose rein policy(羈縻政策) for the surrounding Jurchen. The Ming wanted to establish a border with Joseon along the Yalu river(압록강) and Tumen river(두만강) to create a stable relationship. Joseon emerged as a state on the Korean peninsula, replacing Goryeo, and continued to have stable diplomatic relations with the Ming. In addition, Joseon wanted to keep the Jurchen, who lived in the northern part of the Korean Peninsula, under Joseon's sphere of influence in case the northern ethnic groups, including the Jurchen, were invaded by the international situation. As such, the Joseon and Ming clashed over influence over the Liaodong and the Jurchen. Basically, however, Joseon and Ming maintained mutually recognized borders and sought a stable international order. However, the concept of Joseon's borders was complicated by the consolidation of the Jurchen in the 16th century and their emergence as a new power. As the Jurchen expanded their power, Joseon, in conjunction with the Ming, actively sought to control them. However, due to the rapidly changing conditions of the Imjin War, the Joseon and Ming were unable to curb the growth of the Jurchen. The unified Jurchen founded the Later Jin(後金) and went to war with the Ming in earnest, renamed the Qing, and defeated the Ming, emerging as the center of power in East Asia. The border problems of the Joseon and Qing were both continuous and distinct from the border problems of the Joseon and Ming.

Uncertainty Calculation as a Service: Integrating Cloud-Based Microservices for Enhanced Calibration and DCC Generation.

The calibration industry is renowned for its diverse and sophisticated equipment and complex processes, which necessitate innovative solutions to keep pace with rapidly advancing technology. This paper introduces an enhancement to an existing microservice-based cloud architecture, aimed at effectively managing the inherent complexity within this field. The enhanced architecture seamlessly integrates various equipment types and communication technologies, aligning diverse stakeholder expectations into a unified system that ensures efficient and accurate calibration processes. It highlights the integration of microservices to facilitate various methods of uncertainty calculation and the generation of digital calibration certificates (DCCs). A case study on RF power measurement illustrates the practical application and benefits of the enhanced architecture. Although initially focused on RF power measurement, the flexible architecture allows for future expansions to accommodate new standards and measurement techniques. The enhanced system offers a comprehensive approach to managing data flow from calibration equipment to the final generation of DCCs, utilizing cloud-based services for efficient data processing. As a future direction, this extension sets the groundwork for broader applicability across multiple measurement types, ensuring readiness for upcoming advancements in metrology.

Evaluation of Geotechnical Properties of Soil at Selected Sites in Al-Nasiriya City

Soil index properties are used to calculate and determine the geotechnical properties of soils and then determine soil suitability for the construction of engineering projects. Most of the geotechnical properties of soil affect each other directly or indirectly, and these properties can be utilized as indicators to calculate other properties. In the present study, some soil index properties were used to identify the geotechnical properties of soil. According to the unified classification system for soil, most soils were classified as low and high plasticity hilt. In addition, the soils showed a medium to a high degree of expansion according to the values of the Atterberg limit and were generally considered inactive clay soil. Based on the Standard Penetration Test values, consistency index, and compression index, the soil was stiff to extremely stiff and had high to extremely high compressibility. Finally, the results showed the need for soil for some engineering works, such as stabilization and modification, before the construction of engineering projects.

Цифровий менеджмент як сучасний тренд розвитку підприємства

The article highlights digital management as a modern trend in enterprise development. The study’s authors noted that digital management is based on aspects of society’s modern technical and economic development and modern creative approaches to managing enterprise business processes. The main directions of the development of digital management are outlined. To study the possibility of improving the digital management system at the enterprise, it is recommended that an assessment be carried out using the point method. Attention is focused on the fact that the assessment of digital management should be carried out in the context of management functions: planning, organization, coordination, motivation, and control. The analysis showed that the functions of planning, organization, and coordination of the accounting system of the studied enterprise function better than motivation and control. It is established that digital management is formed based on a knowledge society, information use of components used in the so-called “smart society”. In turn, enterprises’ information and digital development is based on information resources. The importance of information and digital management lies in its emphasis on digitalization, which is determined by specialists’ competence, qualifications, and ability to solve complex computerization problems. It is determined that the main problem of digital management is that it needs to be sufficiently automated and developed to function independently without the participation of managers. In addition, any changes in digitalization algorithms require the involvement of many specialists, making the automation process even more complex than business processes without its participation. A sufficient level of qualification and enough specialists who can solve these problems promptly do not allow you to create perfect software shells for business management. The publication identifies the tasks that need to be solved to create a unified system for automating business processes and the parameters that allow compiling algorithms for the digitalization of business management. Keywords: digital management, digitalization, information resources, information systems, effect.