bluuebunny/crossref_metadata_2025 huggingface dataset:
Study of Morphology, Nutrition and Bioactive Compounds at Two Accessions Marigold (Tagetes Erecta) in Kepahiang Regency
Authors: Rita Wismalinda , Neli Definiati  , Rita Zurina  , Edi Susilo  , Parwito
Published: December 2024

Marigold (Tagetes erecta) is an ornamental herbaceous and medicinal plant that is easily cultivated, so many are found at various heights, such as in Kepahiang Bengkulu regency, Indonesia. In addition, marigolds contain nutrients and bioactive compounds that have yet to be fully utilized. This study aims to identify the morphology, nutrients and bioactive compounds of marigold flowers in Kepahiang district of Bengkulu, Indonesia. The study was conducted using a purposive sampling survey method by conducting non-experimental descriptive observations. Sampling locations were conducted around Kepahiang regency. The variables observed were morphological identification, nutrient content and bioactive compounds. Two accessions are found: marigold flowers with small petals of orange and marigold flowers with small petals of yellow. Orange marigold flowers with small petals-shaped protein (10.51%) are higher than the small yellow marigold (9.49%), while the protein content of leaves (5.96%) is lower than the protein marigold flowers. Small-sized orange Petals marigold flowers have a higher carotenoid content (166.41 mg/kg) than small-sized yellow petals flowers (85.89 mg/kg). But compared to flowers, marigold leaves have a higher chlorophyll content (246.93 mg/kg). Marigold flower with orange petals in a small shape has the best nutritional and bioactive compounds content for poultry feed
Stoic Management and Philosophy: Resilience and Stress Management in the Workplace
Authors: Gleydis Harwida  , Novilia Evita , Winarno Agung
Published: December 2024

This research examines the relationship between the principles of Stoic philosophy and their application in a management context, specifically in terms of resilience and stress management in the workplace. Stoic philosophy, which flourished in Ancient Greece and Rome, offers a view of life that can help individuals face life's challenges with poise and wisdom. Using the literature review research method, this article analyzes various studies and theories that link Stoic teachings to modern management, as well as how Stoic principles can be applied to increase mental resilience, reduce stress, and promote well-being in the workplace. This research aims to provide insight into the relevance of Stoic philosophy in improving managerial effectiveness and workers' psychological well-being
Characteristics of Consumers Who are Loyal in Buying Food Product at Cafe Pelangi Ambon City
Authors: Alhabsyi Putri Nabila , Turukay Martha , Simanjorang Tienni Mariana
Published: December 2024

This study aims to determine the characteristics of consumers who are loyal in buying food products at Cafe Pelangi in Ambon City. The research method used in this research is descriptive analytic. The sampling technique used was purposive sampling technique so that 70 respondents were obtained. The results showed that the majority of loyal consumers at Cafe Pelangi are men aged 30-49 years with high school and bachelor education levels, predominantly self-employed with middle to upper income. In addition, high frequency of visits, satisfaction with food products, and a comfortable atmosphere are the main factors that influence consumer loyalty. The results of this study provide important implications for Cafe Pelangi in designing more targeted marketing strategies, such as developing new menus that suit the preferences of loyal consumers and improving service quality
Contextualization of Ushul Fiqh in Muamalah and Modern Banking: Sharia Solutions in the Global Economic System
Authors: Putro Dimas Handoyo , Nurwahidin  , Hannase Mulawarman , Nafis Muhammad Cholil , Nur Fatwa  , Muttaqin Mohammad Izdiyan
Published: December 2024

This study examines the application of ushul fiqh, the foundational discipline of Islamic jurisprudence, in modern Islamic banking and its implications for the global economic system. Using a Systematic Literature Review (SLR) methodology, this research analyzes academic contributions from 2018 to 2024, focusing on the integration of Islamic principles into banking practices. The findings reveal that ushul fiqh significantly reduces financial instability through principles like the prohibition of riba (interest), reduction of gharar (uncertainty), and emphasis on maslahat (public welfare). These principles align economic transactions with ethical values, fostering inclusivity and sustainability. However, challenges such as regulatory standardization and integration into global markets persist. Despite these, the study identifies substantial growth opportunities for Islamic banking, especially with the rise of sharia-compliant Fintech solutions. This research highlights the potential of ushul fiqh as a transformative tool for promoting justice and resilience in global financial systems while meeting the ethical demands of modern economies
Evaluation of Employment Policy in Papua Province: Study of Papua Governor's Regulation Number 34 of 2019 Concerning the Organization and Work Procedures of the Department of Industry, Trade, Cooperatives, Small and Medium Enterprises and Labor
Authors: Abner Herry Bajari  , Sepo Nawipa
Published: December 2024

The high unemployment rate in Papua Province, reaching 65,000 people, is one of the main challenges in achieving regional development goals, especially in the employment sector. This unemployment is spread across various districts/cities in Papua and is an obstacle to achieving the targets of the Papua Provincial Government's technical institutions, namely the Department of Industry, Trade, Cooperatives, Small and Medium Enterprises and Manpower (Perindagkop UKM dan Manpower), which is regulated by Gubernatorial Regulation Number 34 of 2019. This regulation only regulates employment matters but does not cover aspects of workforce placement, which should be an important part of reducing unemployment. This research aims to describe and analyze the evaluation of employment policies in Papua Province, especially those related to Gubernatorial Regulation Number 34 of 2019 concerning the organization and work procedures of the Department of Industry and Trade, UKM, and Manpower, and identify the obstacles that exist in implementing these policies. This research uses a qualitative approach with descriptive methods and data collection through in-depth interviews and Focus Group Discussions (FGD) with stakeholders related to employment policies in Papua
Evaluation of the Adiwiyata Award Program to Form an Environmental Care Movement at SMP Negeri 3 Candi, Sidoarjo Regency
Authors: Muhammad Bagus Fajar Mukti  , Sri Roekminiati  , Aris Sunarya  , Kristiyan Dwijosusilo
Published: December 2024

This study aims to evaluate the Adiwiyata Award Program in forming an environmental care movement at SMP Negeri 3 Candi, Sidoarjo Regency. This study uses an evaluation approach with the CIPP (Context, Input, Process, Product) model from Daniel Stufflebeam. Data were collected through observation, interviews, and documentation related to program implementation. Each element was evaluated to assess the suitability between objectives, resources, implementation, and impacts generated. Data were analyzed descriptively. The results showed that the program was implemented effectively and in accordance with established procedures, with activities that met the criteria for achieving Adiwiyata School status. The Context element identifies that the program is based on the school's vision, mission, and objectives to increase environmental awareness. The Input element evaluates institutional readiness, including adequate human resources, budget, and infrastructure. The Process element highlights activities such as the implementation of "Clean Friday" and the integration of environmental learning involving the entire school community. The Product element shows the results in the form of a green and comfortable environment, as well as changes in student behavior who practice environmentally friendly habits, such as organic and inorganic waste management
Influence of Digital Management on the School Improvement at Beijing Normal University
Authors: You Bei  , Asrin  , Mohamad Mustari
Published: December 2024

The adoption of digital management in educational settings, specifically at Beijing Normal University (BNU), reflects the ongoing transformation of academic environments through technology. This study explores the comprehensive impact of digital management practices on school improvement. Specifically, the study aims to investigate the influence of six dimensions of digital management, including school visions, school leadership, pedagogical practices, teaching community practices, school-level knowledge practices, and digital resources, on school improvement at Beijing Normal University. Employing a quantitative research methodology, this study utilizes correlation and regression analyses to assess the impact of digital management practices on school improvement. Data were collected via structured surveys from a sample of 351 teachers at BNU. The findings indicate significant positive correlations and effects across all digital management dimensions on school improvement, with school-level knowledge practices and pedagogical practices showing higher substantial influence. This study contributes to the understanding of digital management’s pivotal role in enhancing educational quality and administrative efficiency in higher education settings. It offers a validated framework for other institutions aiming to leverage technology for comprehensive school improvement
Validity of the Scientific Creativity Project Based Learning (SiPjBL) Model in physics learning to increase the scientific creativity of physics education undergraduate students in basic physics courses 1
Authors: Sumo Maimon , Jatmiko Budi , Supardi Zainul Arifin Imam
Published: December 2024

This research aims to describe the validity of the SiPjBL model reviewed from the aspects of model development needs and knowledge updates. The method used is development. The data collection technique is carried out by model validation and the research instrument is a model validation sheet containing statements referring to aspects of development needs and knowledge updates. Data analysis is carried out quantitatively by calculating the score on each component of each aspect of the model. The results of the study obtained an average score of 3.92 with a very valid category and the percentage of feasibility of the SiPjBL model reached 97%. Thus, the SiPjBL model is feasible to be implemented in the learning process in higher education.
Introduction of Forage Feed Processing Technology for Cows in the Damang Saiyo Farmer Group
Authors: Amir Yurni Sari , Zelpina Engki , Lefiana Delli , Noor Prima Silvia , Sujatmiko Sujatmiko , Siregar Ramond , Lutfi Ulva Mohtar , Syamil Muhammad , Rahim Alhafid Septia
Published: December 2024

The Damang Saiyo Farmer Group is one of the farmer groups located in Batu Balang Village, Harau District, Lima Puluh Kota Regency. This group is quite active, especially in the agricultural sector. Most of the group members are active in agriculture, such as planting rice and gardening. However, there are also group members who raise livestock such as cows. Raising cattle for group members is a side activity and as family savings. Supporting natural resources such as empty land, fertile soil and easy access to green fodder in the form of grass and agricultural waste are supporting factors for raising cattle. The problems found in the Damang Saiyo Farmer Group are the lack of community knowledge about green fodder and never having processed green fodder from agricultural waste such as straw. So far, straw has not been optimally utilized as cattle feed.
Screening for Hypertension and Diabetes Mellitus in Mothers of RT 04 RW 09 Vim Village, Abepura District
Authors: Hasmi Hasmi , Makaba Sarce
Published: December 2024

This screening aims to detect people with Hypertension and Diabetes Mellitus in Residents of RT 09 RW 04 Vim Village, Abepura District. The method is to check blood pressure using digital tension and blood glucose test using Rapid Diagnostic Test. The results of the service found that the proportion of people who suffer from Hypertension is 73% > 40 years old, 62.3% of Non-Papuan tribes, 100% of civil servants and self-employed workers, and 63% of family history of Hypertension. The highest mothers with DM are >40 years old 18.9%, Papuan ethnicity 16.7%, private employment 22.2%, and there is a family history of DM as much as 15.8%. Respondents who had HT were 60%, and mothers who were DM 13.8%. Early detection is needed regularly, to prevent HT and DM diseases from complications with other diseases.
Education on Packaging and Labeling for Milky Orange Powder Drink Products in Mundurejo Village, Jember Regency
Authors: Wiyono Andi Eko , Mahardika Nidya Shara , Sari Vina Juanita , Tiwakana Yolanda Maulani , Nashiruddin Muhammad Luthfi , Leemans Joshep Yoshio , Larasati Misty Ayu , Prajamukti Randhiagus , Pamungkas Ari Candra Juni , Putra Sigit Arya
Published: December 2024

Mundurejo Village is one of the production centers for quality Siamese oranges in the Jember Regency. The problem often faced by Siamese orange farmers in Mundurejo Village is that the high production costs are not commensurate with the selling price of oranges, which falls in certain seasons due to intense market competition. Community service activities are carried out to improve residents' skills in processing oranges into products with high-selling value and better packaging and labels. The Service Team provides socialization and training on the production and packaging of milk orange powder drink products with an agenda of activities (1) Introduction to tools and technology in making and packaging products, (2) Socialization of the importance of packaging and labels on products, and (3) Product packaging and labeling practices. The Service Team succeeded in increasing the understanding and skills of the Mundurejo Village community regarding the importance of packaging and labels to maintain product quality and provide clear product information to consumers. It is hoped this activity will produce attractive and informative packaging so that the processed milky orange powder drink product can become a village icon and have a sustainable positive impact on the community.
The Impact of Technology and Social Media on Marriage and Divorce: A Study in Besilam Village, Langkat Regency
Authors: Sendy Beby , Rossanty Yossie , Hawawari Muhammad Fadhiil
Published: December 2024

In today's rapidly evolving digital era, technology and social media have become integral parts of daily life. From connecting people worldwide to shaping how we communicate, work, and play, these advancements have profoundly transformed social, cultural, and economic dynamics. This article explores the significant role of technology and social media in the modern world and examines their influence on how we live, interact, and share information. While social media serves as an effective two-way communication tool, its impact can vary depending on how it is used. The concept of communication and information-sharing via computer networks, which predates modern social media, marked the foundation for what we now recognize as social media platforms. As technology and social media continue to advance, they have given rise to new societal phenomena, including divorces stemming from relationships formed through social media interactions. Remarkably, marriage ceremonies can now be conducted via video calls, and divorces can be finalized through video conferences. The ongoing development of technology has significantly broadened societal knowledge. The emergence of diverse social media platforms has further enabled people to expand their social networks and forge new friendships.
The Kramadangsa Man in Sufist Literature by Candra Malik
Authors: Amrullah Imron , Suyatno  , Tjahjono Tengsoe
Published: December 2024

The purpose of this research is to determine human cramps. The method used is qualitative descriptive. The results of this research are (1) hoarding of wealth and (2) a sense of belonging. Kramadangsa's accumulation of wealth is depicted through the narrative of grave pilgrims asking for wealth (lottery, position, soul mate) and land disputes. Kramadangsa's sense of belonging is represented through a sense of belonging to oneself, others, partners, teachers and God.
THE VAL RONCAGLIA LANDSLIDE (NORTHERN ITALY): FROM CONCEPTUAL TO NUMERICAL MODELLING
Authors: Gattinoni Paola , Molteni Angelo
Published: December 2024

This paper focuses on the Deep Seated Gravitational Slope Deformation (DSGSD) affecting Val Roncaglia (Northern Italy). Based on the state of the art about DSGSD, the study area was characterized from geologic, tectonic, geomorphological, and hydrogeological points of view in order to reconstruct the conceptual model of the slope (geometry, geomaterials and their properties). Moreover, based on the available monitoring data, the landslide kinematics was pointed out together with its possible evolution and the related triggering factors. Then, the conceptual model of the landslide was implemented into a 2D numerical stress-strain model, which was calibrated based on monitoring data of displacement arising from inclinometric probes. Finally, the numerical model was employed to simulated the slope evolution for different geomechanical and hydrogeological conditions in order to find out the factors that affect stability the most. The results of the present study provide a comprehensive understanding of the causes and dynamics of the DSGSD affecting the Val Roncaglia slope and give insights useful for the general comprehension of this kind of large phenomena, therefore enanching a proper management of the related risks.
COMPUTERISED RISK ASSESSMENT FOR STORAGE OF PYROTECHNIC ARTICLES
Authors: Radeanu Cristian , Claudia Miron , Gabrie Vasilescu , Dan Pintilie , Claudius Popescu
Published: December 2024

Safety protection against detonation due to accidental initiation of stored fireworks is of particular interest for safety because such detonations endanger the life and health of workers as a result of the uncontrollable effects of deflagration and pressure, the presence of toxic reaction products and the consumption of oxygen in ambient air which workers must breathe. At the same time, it should be borne in mind that material losses caused by explosions can be particularly high.
The existence of the danger of accidental initiation / detonation of stored pyrotechnic articles determines imperatively the establishment of causes and possibilities that can generate the initiation / detonation of these pyrotechnic products for all components of the work system (work environment performer, work equipment and work load). In addition, the organisational aspects of explosion protection must be adapted to the technical problems specific to each workplace so that no weak points arise in explosion protection areas.
In accordance with the specifications in the technical documentation on the activity carried out at the level of an authorized pyrotechnic articles warehouse, the employer is responsible for the safety of the personnel employed. All persons involved must be informed of clearly defined procedures for operation and emergencies, and appropriate training must be provided for employees. It is also necessary that the work instructions and occupational health and safety, as well as the measures provided for in the internal regulations, be included in the specialized trainings, following the quality of the attributes, as well as the way of complying with them during the performance of specific activities and operations with pyrotechnic articles within each process stage, respectively transport, supply, reception and storage.
On the basis of the above, the scientific article will document the results of the computerised risk assessment (drawing of risk/overpressure curves and contour maps on the design of detonation fragments) generated by specific operations with fireworks in their storage.
TRANSPORT CAPACITY OF MINING HOISTING EQUIPMENT - CALCULATION BASED ON SIMULATION
Authors: Saderova Janka , Rosova Andrea , Muchova Patricia , Ondov Marek
Published: December 2024

Transport by mine hoisting equipment is used to remove excavated materials, deliver materials, machinery, and equipment required for the mining process and related activities, as well as transport persons. These technological devices use transport containers to pull the load in the form of a skip, cage, or skip-cage from underground to the surface. Mining machines are intended for vertical and inclined pits. Scientific research discussed in the present article focuses on the transport capacity of the mine hoisting equipment in mining minerals. The article applies a mathematical calculation of transport capacity on the base simulation. A simulation model was created in the ExtendSim10 simulation system. ExtendSim10 combines discrete and continuous simulation possibilities and is used by researchers in various fields. The output from the simulation model (number of transport cycles) serves as the basis for the capacity determination. The simulation model can be used to verify the results obtained by calculation based on available mathematical relationships or measurements obtained during operation.
IMPROVEMENT OF MECHANICAL PROPERTIES OF AUSTEMPERED DUCTILE IRON (ADI) BY MAGNETIC FIELD
Authors: Futas Peter , Pribulova Alena , Petrik Jozef , Blasko Peter Peter , Brzezinski Marcin
Published: December 2024

Austempered Ductile Iron (ADI) is a promising material whose structure is obtained by isothermal processing, i.e. isothermal decomposition of austenite in the bainitic range. It is used in various industrial fields. It is characterized by an excellent combination of tensile strength and ductility, exceeding the properties of quenched and tempered steels in the strength range of 800 - 1500 MPa. Its production is problematic because the ferritic or ferritic-pearlitic ductile iron (SGI), which is the basis for the production of ADI cast iron, must meet demanding metallurgical properties. These are, above all, regular and uniformly distributed graphite spheres in the matrix. One of the ways to influence the metallurgical quality of ADI cast iron is the action of a magnetic field, which leads to the improvement of the metallurgical and mechanical properties of ADI cast iron. The article deals with the influence of a magnetic field on the mechanical properties of ADI in the process of isothermal hardening. In isothermal quenching, after austenitizing, the quench is first cooled to a lower temperature and then the temperature of the quenching medium is raised to a higher temperature. The entire process is carried out in the presence of a magnetic field. The mechanical properties and microstructure were compared with the conventional manufacturing process. In this way, an increase in the mechanical properties and a refinement of the cast iron structure was achieved.
GEOPHYSICAL EXPLORATION IN ARGEMELA DISTRICT, FUNDAO, PORTUGAL � VLF RESULTS
Authors: Ribeiro Ricardo , Moura Rui , Carvalho Ana , Lima Alexandre , Gumiaux Charles
Published: December 2024

Raw materials are essential for Europe�s industrial base, as they are used to produce vital goods and technologies. The European Comission�s assessment identifies lithium and tin as critical and strategic raw materials due to rising demand. A PhD thesis aims to create a 3D geological model of the Argemela District in Central Portugal to provide vital information about the genesis of the hydrothermal tin and lithium mineralizations founded in the region. The study places emphasis on the very-low-frequency (VLF) electromagnetic method as a tool to provide information about the mineralization, lithologic contacts, and structural features that can be related to the mineralizations. Argemela district has two main areas, the Argemela Tin and Lithium Mine and the Argemela Hill Top. VLF data was collected and analyzed, showing that low resistivity may be associated with mineralization in the Argemela Mine, while high resistivity may be linked to the Argemela microgranite in the Argemela Hill Top. This geophysical method is effective in non-invasively mapping subsurface features, assisting in the development of a comprehensive 3D geological model and enhancing resource evaluation.
ANALYSIS AND ASSESSMENT OF SECURITY REQUIREMENTS FOR USE OF HYDROGEN AS A FUEL IN THE TRANSPORT SYSTEM
Authors: Grecea Danut , Pupazan Gabriela , Andris Adriana , Beldiman Alexandru , Nicola Aurelian
Published: December 2024

The Growing concern about climate change and the actions that need to be taken to protect environment have begun to occupy the top places on global agenda in recent years.
Transport of the future will look different: ecological, economic and maximum efficiency. But it's not only car manufacturers who are making efforts to reduce as much as possible the climate impact of vehicles. One of solutions is and the major interest of using hydrogen as a viable answer for decarbonizing industrial processes and economic sectors where carbon reduction is both urgent and difficult to achieve. Thus, a new approach to climate policy is required, the development of storage technologies and charging infrastructure, in order to have a healthier way of life and a cleaner environment.
The paper presents an analysis of all aspects, from the point of view of explosion protection, for use hydrogen as an alternative fuel source, using simulation in MATLAB-Simulink of production, storage and use it. All these processes can generate critical situations, and the analysis of pressures, temperatures and other defining parameters are of major importance for the assessment of explosion risks in the context of safety and health and environmental protection, the minimum ignition energy of hydrogen being about 17 ?J.
DEVELOPMENT OF A COMBINED SPUD BIT FOR DRILLING TECHNOLOGICAL WELLS IN KAZAKHSTAN
Authors: Ratov Boranbay , Fedorov Boris , Khomenko Volodymyr , Kuttybayev Aidar , Sarbopeyeva Manshuk
Published: December 2024

The development of efficient drilling tools tailored to the unique geological conditions of Kazakhstan's drilling sites is paramount for optimizing well construction operations. This study focuses on the design, fabrication, and evaluation of a combined spud bit specifically engineered for drilling technological wells in Kazakhstan. The combined spud bit integrates both polycrystalline diamond compact (PDC) and carbide cutters within a single robust structure to enhance drilling performance across a diverse range of rock formations.
It is an annular housing with stepped weapons, and a pilot is attached to the lower end of the housing, at the end of which alternating weapons are placed: a carbide cutter-PDC cutter. Mixed stepped blades equipped with weapons are welded onto the side surface of the annular pilot with their transverse direction towards the face.
The main design solution is to raise the blades of carbide cutters above the edges of the blades of PDC cutters, i.e. the former are located closer to the face than the latter. This makes it possible to work out initially carbide cutters when the face is destroyed. In addition, the latter are located further from the axis of rotation of the tool and will have greater wear resistance. As drilling progresses, the height of the carbide cutter edges decreases and, finally, their height becomes equal to the height of the PDC cutter edges. As a result, the speed of deepening the well to the design depth increases sharply.
The findings of this study contribute valuable insights into the development of advanced drilling technologies tailored to Kazakhstan's geological challenges, with implications for improved well construction practices and resource extraction efficiency
METHODOLOGY FOR OPTIMIZING DRILL BIT PERFORMANCE
Authors: Pashchenko Oleksandr , Ratov Boranbay , Khomenko Volodymyr , Gusmanova Aigul , Omirzakova Elmira
Published: December 2024

The optimization of technological processes is vital for advancing scientific and technical progress in exploration activities, particularly in drilling operations. The integration of operating microprocessor equipment and automated management systems has opened up new opportunities for theoretical research in optimization processes and drillings. Control systems for drilling exploration wells on solid minerals enable real-time operation and data collection, processing, and diagnosis of equipment functionality. Optimization of technological processes using modern equipment aims to enhance production efficiency, improve quality, and reduce costs. Despite advancements in equipment, tools, and drilling technology, there are still significant opportunities for increasing productivity and improving technical and economic indicators in prospecting drilling. Optimization criteria vary depending on the objectives, with the maximum productivity often achieved by minimizing drilling time. The task of finding the maximum drilling speed per run involves optimizing parameters such as weight on bit, tool speed, and mud flow rate. A novel technique proposed in this study involves cyclic intra-run changes in speed per minute as the optimization criterion, rather than mechanical speed. The developed method is applicable to any rock cutting instrument and drilling method, with the optimization of drilling speed per run as a function of drilling time. The use of time and speed coefficients simplifies calculations and reveals regularities in the drilling process, contributing to the optimization of drilling operations.
PRACTICAL ASPECTS OF IMPROPER INSTALLATION AND MAINTENANCE OF EQUIPMENT INTENDED TO BE USED IN POTENTIALLY EXPLOSIVE AREAS AND RECOMMENDED MEASURES
Authors: Csaszar Tiberiu , Colda Cosmin , Grecea Danut , Pupazan Gabriela , Beldiman Alexandru
Published: December 2024

In the evaluation activity of technical equipment intended to be used in potentially explosive atmospheres, by national and international legislation, non-compliant aspects were often reported regarding the choice, installation and maintenance of this explosion-proof equipment. The following main aspects were pointed out: the equipment that was initially chosen and installed appropriately for the specific application but later, over time, improperly maintained; respectively, the situation in which they were inappropriately selected from the beginning for the intended application, by ignoring the existing hazard due to the presence of potentially explosive atmospheres. Both reported situations could induce major hazards in the short or long-term operating conditions of the respective equipment, which can become an effective source of ignition of the atmospheres endangered by the presence of explosive mixtures within the flammability limits. The work is intended to be a warning signal regarding the negative aspects detected during the evaluation activity and also provides solutions for their remedy.
USING MACHINE LEARNING TECHNIQUES TO FORECAST CUTTINGS REMOVAL IN HOLE CLEANING
Authors: Delikesheva Dinara N. , Sharaouva Aizada B.
Published: December 2024

This study addresses the significant challenge of hole cleaning in drilling operations, which is essential for preventing stuck pipe incidents�a major cause of non-productive time and additional costs in drilling. This research aims to develop and validate machine learning models that enhance the prediction and optimization of cuttings removal during drilling. Utilizing a dataset derived from historical drilling operations, we employed regression analysis and neural network models to forecast the presence and height of slurry beds. The models were trained on variables such as borehole dimensions, drilling fluid characteristics, and operational parameters. Our results demonstrate that these models effectively predict conditions that could lead to stuck pipes, allowing for preemptive adjustments to drilling operations. This capability could significantly reduce unplanned downtime and associated costs. The primary contribution of this study lies in its innovative use of machine learning to transform predictive maintenance in drilling operations, offering substantial improvements in efficiency and safety. These advancements represent a crucial step forward in drilling technology, with the potential to mitigate risks and enhance operational decision-making across the industry.
KNOWLEDGE SHARING IN DISTRIBUTED TEAMS - THE IMPACT OF VIRTUAL COLLABORATION TOOLS
Authors: Piwowarczyk Zuzanna
Published: December 2024

This study analyzes the impact of virtual collaboration tools on knowledge sharing in distributed and virtual teams, operating at the intersection of technology, human behavior, and organizational processes. It aims to unravel the complexities of knowledge sharing in modern workplaces by examining the role of these tools in facilitating knowledge exchange, identifying factors for effective practices, and exploring the impact of organizational culture and industry dynamics. Through empirical research, including a self-completed online questionnaire and secondary data sources, the study addresses key research objectives and hypotheses, seeking to maintain elevated levels of knowledge sharing with increasing virtual collaboration.
Building on previous research on IT management models and knowledge exchange, the study finds that virtual collaboration tools positively influence knowledge sharing, with specific tools and functions such as speed of access and file storage contributing significantly. However, challenges remain in transparency of information structure and integration with organizational tools. Despite limitations in sample size, the research offers valuable insights and practical strategies for organizations navigating today's dynamic work landscape, supporting best practices in environments user planning and IT tool design, and deepening the understanding of knowledge sharing in virtual.
MODEL OF ASSOCIATIVE MEMORY IN A BIG DATA PROCESSING ENVIRONMENT
Authors: Kalinin I. V. , Sevostyanov V. A.
Published: December 2024

In the modern world, neural networks are becoming an integral part of human life. In particular, neural networks began to be used for the task of constructing information security tools; in connection with this, the need gradually began to arise to strengthen and improve the mechanisms of artificial intelligence itself, including when using big data technology.
Let's consider the basic concepts of working with Big Data technology, in particular the processing of assimilation memory to build a general visual picture of the current situation of the presence of user agents and software. The assimilative memory model is an important component that evaluates the state of the system, remembers events, produces correlation indicators, and accumulates information for a potential intellectual intrusion detection system.
The constructed associative memory can be used to build, for example, efficient structures of on-board geoinformation databases, especially when used in autonomous vehicles (for example, UAVs). The use of an intrusion detection system to protect on-board geoinformation databases in vehicles can improve the security and integrity of data.
IMPORTANCE OF GEOMORPHOMETRIC AND GEOLOGIC VARIABLES FOR AUTOMATED DELINEATION OF GEOMORPHOLOGICAL UNITS (ON THE EXAMPLE OF YAMAL PENINSULA)
Authors: Kharchenko Sergey , Kharchenko Sergey
Published: December 2024

This study assesses the efficiency of various geomorphometric terrain characteristics and a number of categorical geological parameters in training statistical models to create geomorphological maps. The study area is the central sector of the western coast of Yamal Peninsula (S = 10 400 km2). The terrain is exceptionally flat and morphologically similar, but the genesis and age of the surfaces are diverse. The background surface type is marine terraces of various (Middle Pleistocene to Holocene) ages, subsequently reworked by fluvial, cryogenic, and other exogenous processes. The classification method used is random forest. For representativeness assessment, we used 211 raster images reflecting the spatial distribution over the area of quantitative characteristics of the earth's surface morphology, as well as substrate parameters (the age of different sediment packs, basement structures), geophysical anomalies, etc. It has been established that using sample data covering fractions of the area percent (0.04�1%) allows for the automatic construction of a geomorphological map for the rest of the area with an accuracy of 78�79%, which is more than 7 times higher than the accuracy of random guessing. The most representative parameters are elevation, various metrics of relative heights/depths, supplemented by texture characteristics of topographic dissection: "non-fractality" and "harmony" of the terrain, etc.
HOW TO FIND THE BEST ROUTE? A COMPARISON OF ROUTE SEARCHING SERVICES
Authors: Kolodziej Ondrej , Horak Jiri , Kukuliac Pavel
Published: December 2024

Route search engines are essential tools in online applications that address a wide range of user needs. However, the distribution of such applications and simple search engines presents a diverse landscape with different outputs for the same routing tasks. Although they rely on well-established algorithms, the use of different datasets often leads to different results. This paper aims to compare selected route search engines, investigate the differences in their outputs, and provide useful recommendations to users. Prague and Adelaide were chosen as test environments due to their different characteristics. The performance, route characteristics, and recommended routes of major search engines such as Bing Maps, Google Directions, TomTom, Open Source Routing Machine (OSRM), and OpenRouteService were evaluated and compared with Google Directions serving as the baseline for statistical analysis and comparison due to its extensive community use. This research highlights the key role of real-time traffic data in route discovery, particularly in large cities. Notably, the testing was conducted during peak and off-peak hours, revealing significant differences not only in response times for individual services, where Bing Maps and TomTom exhibited the highest disparities in response times, up to 76 %, but also when comparing individual routes during the different hours resulting in up to a 16% decrease in travel times. In contrast, OSRM and OpenRouteService were unable to accommodate real-time traffic data. In addition, statistical analysis revealed interesting patterns of significance correlated with specific locations within the tested cities. While TomTom continues to be recommended for online services due to its reliable data sources and consistent outputs, OSRM emerges as the preferred choice in response times, offering optimal results. By shedding light on these nuances, this paper increases transparency in the understanding of route finders and allows users to make informed decisions, determining whether or not the choice of route finders is important. It highlights how crucial it is to select a preferred service based on effectiveness and comprehensive support for different modes of transport.
AN EFFECTIVE APPROACH TO APPLYING PRODUCTS FROM GNSS CORS NETWORKS IN GEODETIC PRACTICE
Authors: Genchev Stanislav
Published: December 2024

The issues related to the use of products generated from Continuously Operating Reference Station (CORS) for precise positioning are the main focus of the study. Geodetic measurements were conducted at a real site, and different types of data provided by commercial CORS networks were compared � Network Real Time Kinematic (Network RTK) via VRS, generated data for subsequent processing (Virtual Rinex), and raw data from a physical station. The current national regulations, as per [1] , were adhered to, and the aim is to expand the methodology for applying a faster and more efficient approach to determining points in geodetic control networks, ensuring high reliability and accuracy through a comparative analysis.
The construction of geodetic control networks (GCN) and working geodetic bases (WGB) is an essential and integral part of designing and constructing any type of infrastructure projects. In geodetic practice, GNSS determinations are most commonly relied upon as a fast and effective method. For almost all applications, the points determined with GNSS are considered without errors, thus realizing the geodetic coordinate system for the project. With the development of technology and the construction of CORS networks, Network RTK has become the most commonly applied method due to the accessible and easy acquisition of the final result (coordinates of the determined points). However, its application often does not lead to reliable results. On the other hand, the Virtual Rinex product is not widely popular among the geodetic community, though it is not inferior in terms of cost-effectiveness. Some studies on its application have been published in [2] , but its application is not embedded in any regulatory document in the Republic of Bulgaria.
SATELLITE MONITORING OF ANTHROPOGENIC PROCESSES AND FACTORS OF LAND DEGRADATION IN UKRAINE
Authors: Yelistratova Lesya , Apostolov Alexander , Hodorovsky Artur , Tomchenko Olha , Tymchyshyn Maksym
Published: December 2024

The relevance of the research lies in the fact that the well-being of the Ukrainian nation, present and future generations, largely depends on the preservation of existing ecosystems, their support, and the enhancement of their quality and biodiversity. Particular attention should be paid to the problem of land cover degradation. Land cover currently holds a unique status regarding food security and is a dominant source for renewing crucial biospheric functions, ensuring the diversity of living organisms.
The anthropogenic and technological pressure on Ukraine's environment (land cover) exceeds several times the corresponding indicators in developed countries. A remote sensing data methodology was proposed to assess the impact of human, technical activities (anthropogenic predictor) on land cover degradation.
As a result of the research, the obtained data allowed for the assessment of Ukraine's land cover status and revealed the degree of its degradation caused by the influence of anthropogenic factors, namely, irrational agricultural practices, non-efficient long-term exploitation of mineral deposits, ineffective urban infrastructure design, irrational practices in forestry and park management, the influence of reservoirs, forest, and steppe fires, as well as military activities.
UPDATING OF THE CADASTRAL MAP USING UNMANNED AERIAL VEHICLES IN SLOVAKIA
Authors: Kysel Peter , Hudecova Lubica , Vesteg Hana
Published: December 2024

A functioning land management is one of the key attributes of the successful management of a country. The cadastre of the real estate is one of the most important land management systems. However, for the successful management of land, the cadastre needs to be filled with complete and high-quality data. In Slovak Republic, the problem of the quality of cadastral data have been a long-discussed topic. One of the biggest quality issues of the cadastre is its map collection. Some of the maps in the cadastral map collection can originate up to the second half of the 19th century. The renewal of these maps is necessary to ensure the recording of real estates of a high quality. Besides the renewal of the cadastral maps, they also need to be constantly updated with new data. One of the main sources for the updating of cadastral maps is a measurement of a land surveyor. In Slovakia, the classical land surveying measurement methods are mainly used for the cadastral surveys nowadays, such as the GNSS-RTK method or polar method using a total station. However, the modern measurement methods, such as the photogrammetry using unmanned aerial vehicles (UAV photogrammetry), are getting into the routine land surveying practice, so their precision has to be tested. The main aim of this paper is to present the results of a cadastral survey of a small countryside land parcel using a DJI Phantom 4 RTK drone, which would then serve as a base for the cadastral map updating. The precision and effectiveness of this method would be compared to the classical measurement methods. The precision would be evaluated according to the now-effective Slovak cadastral regulations. Various approaches to the image processing and the measurement on the resulting products have also been tested.
FISHER-X: AN ENGINEERING CONCEPT TO MONITOR WATER ENVIRONMENTS USING ROBOTIC BIOMIMICRY
Authors: Vasquez-Charcape Yury , Jamanca-Lino Gustavo , Sanchez-Perez David , Cevallos Bruno
Published: December 2024

Human activities have significantly impacted aquatic ecosystems worldwide, especially in developing countries. Acid mine drainage from mineral extraction and wastewater containing xenobiotics pose substantial threats for lakes and marine ecosystems, introducing heavy metals and increasing antibiotic resistance in pathogenic microbes. Despite the urgent need for effective solutions, many environmental liabilities remain without an adequate mapping unmapped or remediation plan, exacerbating risks for environmental health. To address these challenges, our team proposes FISHER-X, a biomimetic robot inspired by the hadal snailfish Pseudoliparis swirei. This innovative technological tool is designed to support integrative studies and monitor water bodies near industrial facilities, particularly mining units. FISHER-X's proposed capabilities make it a suitable tool for assessing polluted and hazardous environments. This paper presents the conceptual design of FISHER-X, including fundamental equations for engineering design, motion mechanisms based on computational simulation, and a proposed validation test. Potential applications extend beyond conventional environmental monitoring, such as habitability surveys, life detection, and physicochemical characterization and mapping of aquatic environments on Earth and beyond.
HYDROECOLOGICAL STATE OF THE SMALL UPLAND ARMENIAN LAKES
Authors: Fedorova Irina , Ghazaryan Larisa , Rudakov Vsevolod , Chezhina Elizaveta , Fedorov Grigorii
Published: December 2024

During summer-autumn 2023 hydrophysical, hydrochemical, and hydrobiological measurements had been done on six small upland Armenian lakes. For the first time colored dissolved organic matter (CDOM) and methane (CH4) � emission were observed.
Studied lakes are on 1479-3312 m a.s., has maximal depth up to 12 m with groundwater springs input. Anoxic conditions were noticed on the lake bottom in August but changed to oxygen in October. Conductivity range was 0-231 ?S cm-1, TDS - 3-102 mg l-1, pH � 6.4-9.4 for surfaces of all lakes. Main part of nutrients was silicates Si, phosphates PO4 and ammonium NH4. CH4 flux was quite high � reached 13 gCH4 m-2 d-1. Colored dissolved organic matter changes in 12 times range for the lakes, shows allochthonous and autochthonous source of organic matter, ecosystems have low ability to photo degradation.
Ecosystems of lakes depends on altitudes. Thus, pelagic zooplankton of Shushanalich (1552 m a.s.) presented Rotifera, Cladocera and Cyclopoida mostly, whereas Lessing lake (3312 m a.s.) had only Copepoda (Calanus sp.). Numerous diatoms were in plankton and sediments.