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29,939 Article Results

Power quality enhancement for a grid connected wind turbine energy system with PMSG

10.11591/ijape.v14.i2.pp392-400
Kasula Rajasri , Movva Naga Venkata Kiranbabu , Banda Srinivas Raja , Muzammil Parvez , Govulla Ravi Kumar Reddy , Nelaturi Nanda Prakash , Sk. Hasane Ahammad , Bodapati Venkata Rajanna
This project investigates the burgeoning potential of gearless wind turbine systems as a pivotal clean energy resource. Unlike conventional gearbox-based turbines, which grapple with issues like frequent breakdowns, intricate repairs, and prolonged downtimes, gearless systems present a suite of advantages. Chief among these is heightened reliability, diminished maintenance costs, and augmented efficiency. By circumventing the need for a gearbox, gearless turbines shed weight, bolster reliability, and demand less upkeep. The incorporation of permanent magnet generators further elevates their efficiency and renders them well-suited for offshore deployment. The emergence of gearless wind turbines heralds a promising frontier for effectively and efficiently harnessing wind power. Their streamlined design and robust performance potential position them as a transformative force in the renewable energy landscape, poised to catalyze substantial advancements towards sustainable energy goals. As research delves deeper into their capabilities and optimization, gearless turbines are poised to emerge as a cornerstone technology in the global pursuit of clean energy solutions.
Volume: 14
Issue: 2
Page: 392-400
Publish at: 2025-06-01

State-augmented adaptive sliding-mode observer for estimation of state of charge and measurement fault in lithium-ion batteries

10.11591/ijape.v14.i2.pp291-299
Thuy Nguyen Vinh , Chi Nguyen Van , Vy Nguyen Van
Estimating the state of charge (SoC) in lithium-ion batteries (LiB) encounters challenges due to model uncertainties and sensor measurement errors. To solve this issue, this study introduces an estimator based on an innovative adaptive augmented sliding mode approach. This approach incorporates measurement faults as additional state variables to minimize the impacts of uncertainties effectively. Furthermore, based on the sliding mode framework, the design of this estimator addresses resistance to model uncertainties. However, sliding estimators commonly face the chattering issue. To counteract this, the paper suggests employing adaptive dynamics to determine the estimator's gain. This adaptive approach allows the gain calculation to minimize estimation errors across all time steps, effectively reducing chattering and enhancing estimation accuracy. The performance of the proposed method is validated through simulations using two practical data sets. Results demonstrate superior accuracy compared to conventional sliding methods, with improvements in SoC and terminal voltage estimation.
Volume: 14
Issue: 2
Page: 291-299
Publish at: 2025-06-01

Artificial intelligence for automatic moderation of textual content in online chats and social networks

10.11591/ijece.v15i3.pp3396-3409
Solomiia Liaskovska , Rex Bacarra , Yevhen Martyn , Volodymyr Baidych , Jamil Alsayaydeh
The article explores fundamental techniques for converting text into numerical data for machine learning algorithms. It meticulously examines various methods, including word vector representation via neural networks like Word2Vec, and explains the principles behind linear models such as logistic regression and support vector machines. Convolutional neural networks (CNN) and long short-term memory (LSTM) methods are also discussed, covering their components, mechanisms, and training processes. The research extends to developing and testing software for spam detection, hate speech identification, and recognizing offensive language. Using two datasets—one for labeled text messages and another for Twitter posts—the study analyzes data to address challenges like imbalanced data. A comparative analysis among linear models, deep neural networks, and single-layer models, using pre-trained bidirectional encoder representations from transformers (BERT) network, reveals promising results. The convolutional neural network stands out with a remarkable accuracy of 0.95. The study also adapts neural network architectures for hate speech and offensive language classification.
Volume: 15
Issue: 3
Page: 3396-3409
Publish at: 2025-06-01

LMS bot: enhanced learning management systems for improved student learning experiences using robotic process automation

10.11591/ijai.v14.i3.pp2044-2054
Mamidyala Durga Prasad , Nandini Balusu
In this paper, a workflow for bot is designed using robotic process automation (RPA) that is used to enhance learning management systems (LMS) by providing content from external sources along with educator made course content for better student learning experiences. Many students prefer to watch YouTube videos for learning, even if they have been taught the same content by an educator. YouTube is a dynamic platform where video rankings change based on viewer engagement, relevance, and newly included videos. This variability poses a challenge for educators seeking to include external videos, as the content environment within the LMS platform is unpredictable and can change significantly. The bot addresses the challenge by conducting periodic searches for related courses and topics on YouTube. It retrieves top-ranked videos based on relevance, which are then seamlessly integrated into external links within LMS. The LMS external links option enhances accessibility by offering videos sorted by popularity, ensuring students receive updated and relevant information seamlessly. The bot efficiently retrieves details of 750 videos from YouTube in just 17 seconds, showcasing its exceptional performance. Moreover, its capability to autonomously update LMS external links content weekly represents an added advantage. The bot is designed and tested using UiPath tool.
Volume: 14
Issue: 3
Page: 2044-2054
Publish at: 2025-06-01

Challenges of load balancing algorithms in cloud computing utilizing data mining tools

10.11591/ijece.v15i3.pp3449-3457
Anouar Ben Halima , Hafssa Benaboud
In the cloud computing environment, load balancing plays an important role in the efficient operation of cloud computing, where a multitude of resources serve diverse workloads and fluctuating demands. In the rapidly evolving cloud computing, efficient resource management, and optimization are critical for maximizing performance, scalability, and cost-effectiveness. Load balancing algorithms aim to distribute workloads across cloud resources to ensure optimal utilization and maintain high availability of services. This paper presents a comparative study of load balancing algorithms in cloud computing using data mining tools. It underscores the complexity of selecting algorithms for effective load balancing in scenarios with diverse criteria, emphasizing its critical importance for future research and practical implementations. The experimental results are presented, evaluating the performance of different load balancing algorithms using data-mining tools. The outcomes highlight the substantial difficulties when building a model with unacceptable errors to cover users’ needs while selecting the desired load balancing method.
Volume: 15
Issue: 3
Page: 3449-3457
Publish at: 2025-06-01

Technological leadership in industry 4.0 education: influence of digital transformation and ICT adoption

10.11591/ijere.v14i3.30804
Asma Khaleel Abdallah , Ivan Trifonov , Vadim Samusenkov
The objective of this article is a systematic investigation into the effectiveness of information and communication technologies (ICT) usage within the framework of the educational model “industry 4.0”, focusing on the influence of digital transformation on technological leadership in educational institutions. The problem is insufficient technical equipment, uneven distribution of resources, and insufficient support for teachers. The solution lies in systematic innovative training and support for teachers, creating incentives to increase their motivation. The study employs an experimental research design, utilizing survey methods. The subjects of the research include six directors, six teachers, and 120 students from educational institutions in the United Arab Emirates (UAE) and the Russian Federation. According to the survey results, teachers have a positive attitude toward using ICT. A majority of teachers believe that the use of ICT has a positive impact on students’ academic achievements. Responses to open-ended questions indicate a lack or uneven distribution of technical equipment, emphasizing the need for training and support for teachers. One teacher suggesting the “introduction of incentives and rewards” raises the issue of creating a reward system for teachers, which could affect their motivation. Regarding students’ academic performance, the results show that students in educational institutions with active ICT integration demonstrate better results.
Volume: 14
Issue: 3
Page: 2358-2368
Publish at: 2025-06-01

Quick response code generation for e-invoicing in Saudi Arabia

10.11591/ijeecs.v38.i3.pp1980-1989
Abdelrazek Wahba Sayed , Zeinab Rabea
In the digital era, the emergence of quick response (QR) code technology has become a vital tool for enhancing the efficiency of electronic invoice management and promoting security and transparency in financial transactions, while reducing costs and ensuring compliance with regulations. This study focuses on QR code technology and electronic invoice requirements in the Kingdom of Saudi Arabia, by exploring the generation of QR codes for electronic invoices. The study begins by analyzing QR code technology and its role in encoding and decoding information. Subsequently, the electronic invoice requirements in Saudi Arabia are reviewed, with a focus on the applicable systems and regulations. The research also includes details on generating QR codes for electronic invoices, considering factors such as data encoding, security protocols, and compatibility standards using the Python programming language. Various steps of this process are explained. The study aims to provide a comprehensive understanding of the technology and requirements related to electronic invoices in Saudi Arabia and to develop a program for creating QR codes for electronic invoices to improve and develop the financial and technological infrastructure in the Kingdom of Saudi Arabia, thereby contributing to supporting the digital economy and promoting sustainable development.
Volume: 38
Issue: 3
Page: 1980-1989
Publish at: 2025-06-01

Implications of breast cancer healthcare policies and practices on palliative care utilization in Albania over the last decade

10.11591/ijphs.v14i2.25347
Orjola Pampuri , Henrik Zotaj
Palliative care improves the quality of life for patients with severe diseases like breast cancer. The objective of this study was to describe the variation of age of breast cancer patients (484 in total) who accessed palliative care in Albania in the last 10 years (2014 to 2023). Information on patient age, breast cancer incidence, hospitalization and mortality rates, and breast cancer screening was collected. Descriptive statistics and t-test for unpaired samples to compare the means of age in the study period were used. The average age of patients gradually increased from 2014 to 2019, showing fluctuations due to the COVID-19 pandemic, and resumed an increasing trend in 2023. Breast cancer incidence remained stable at approximately 37 cases per 100,000 annually, with significant increases in hospitalization and screening rates over the study period. In conclusion, the gradual increase in the age of breast cancer patients seeking palliative care in Tirana, Albania during the past decade, coupled with slight decrease of mortality rates, stable incidence and increase of hospitalization might be indicators of success of related health policies in Albania, including better diagnostic and treatment strategies, improved treatment efficacy and disease management, ultimately increasing the resilience and adaptability of the healthcare system.
Volume: 14
Issue: 2
Page: 1088-1095
Publish at: 2025-06-01

Optimizing bioinformatics applications: a novel approach with human protein data and data mining techniques

10.11591/ijai.v14.i3.pp2328-2337
Preeti Thareja , Rajender Singh Chhillar
Biomedicine plays a crucial role in medical research, particularly in optimizing techniques for disease prediction. However, selecting effective optimization methods and managing vast amounts of medical data pose significant challenges. This study introduces a novel optimization technique, integrated bioinformatics optimization model (IBOM) for disease diagnosis, incorporating data mining to efficiently store large datasets for future analysis. Various optimization algorithms, such as whale optimization algorithm (WOA), multi-verse optimization (MVO), genetic algorithm (GA), and ant colony optimization (ACO), were compared with the proposed method. The evaluation focused on metrics like accuracy, specificity, sensitivity, precision, F-score, error, receiver operating characteristic (ROC), and false positive rate (FPR) using 5-fold cross-validation. Results indicated that the 5-fold cross-validation method achieved superior performance with metrics: 98.61% accuracy, 96.59% specificity, 88.63% sensitivity, 99.30% precision, 92.31% F-score, 10.80% error, 92.61% ROC, and a 3.00% FPR. This method was found to be the most effective, achieving an accuracy of 0.92 in disease diagnosis compared to other optimization techniques.
Volume: 14
Issue: 3
Page: 2328-2337
Publish at: 2025-06-01

The influence of mobile communication technologies in long-term e-learning

10.11591/ijere.v14i3.29863
Elena Susimenko , Alena Gura , Alsu Rakhmanova , Olga Butylchenko
Communicative abilities constitute a crucial element of successful learning and interaction. The psychological impact of the prolonged lack of face-to-face contact with the peer audience and teachers typically remains an unresolved problem, despite the availability of appropriate online learning methodologies and technical tools. This study aims to ascertain a quantitative assessment of social maladjustment and a reduction in the level of communicative competence resulting from prolonged distance learning and the use of mobile devices in communication. The research employs a quantitative approach and is based on a survey of students who participated in eight socio-psychological training sessions (A-trainings). The training sessions are oriented towards refining the personal qualities of individuals and facilitating their adaptation to the fluctuating conditions of learning environments. The analysis of pre-and post-training results was compared with the results of the control group. The research findings indicate a positive impact of socio-psychological training on the enhancement of communicative skills and emotional well-being of students.
Volume: 14
Issue: 3
Page: 1904-1915
Publish at: 2025-06-01

Effectiveness of self-management support program for overweight employees: a quasi-experimental study

10.11591/ijphs.v14i2.24241
Supaporn Leawsoong , Paiboon Pongsaengpan , Dhammawat Ouppawongsapat , Kanchana Piboon
This quasi-experimental research examined the effects of self-management support program on knowledge, exercise and eating behaviors, body mass index (BMI), and waist circumference among overweight employees in an industry in Samutprakarn Province, Thailand. Seventy overweight employees aged 20-59 years were equally randomly allocated into either the treatment or control group. Thirty-five overweight employees were in each group. In the 16 weeks, the treatment group was intervened through a selfmanagement support program, while the control group received standard care. Research tools consisted of two parts: a self-management support program and questionnaires. The data were analyzed by using descriptive statistics, paired t-tests, and independent t-tests. The results after 16 weeks of the self-management program showed that its average scores of knowledges, exercise, and eating behavior were higher than the baseline and control group (p<.05) while scores of waist circumferences and BMI were lower than the baseline (p<.05). The findings of this study indicated that the self-management support program had outcomes that not only could improve knowledge, exercise and eating behavior, but also reduce BMI and waist circumference. It is suggested that the self-management support program should be applied in the organization to promote knowledge and modify the health behaviors of overweight employees in other industries.
Volume: 14
Issue: 2
Page: 643-651
Publish at: 2025-06-01

Renewable energy usage for home energy management and its adverse impact due to the increasing trend of electric load addition in homes in the State of Kerala, India

10.11591/ijape.v14.i2.pp459-466
Thomas George , A. Immanuel Selvakumar
Nowadays renewable energy generation techniques and their application for home energy management are becoming very common topics of discussion all across the globe. The increased user comfort, bill reduction, and government subsidy schemes make more consumers interested in installing these sustainable sources in their homes. Also, the utility company will be able to level its peak load and reduce its carbon footprint. Does installing renewable energy sources in homes with a conventional billing scheme help in reducing the carbon footprint of the utility company? Also, are there chances for an increased trend of electric load addition in homes installed with renewable energy plants having net metering schemes to lead to peak load management burden? This paper is an attempt to underline the benefits of using renewable energy sources at home but at the same time what are the precautions to be taken while using the same in the state of Kerala, India. The paper also proposes an economical portable solar-powered light tower that helps in leveling peak loads in homes with on-grid power plants which are billed under a conventional block rate pricing scheme through net metering.
Volume: 14
Issue: 2
Page: 459-466
Publish at: 2025-06-01

Solar-powered bidirectional charging of electric vehicle

10.11591/ijape.v14.i2.pp382-391
Nachagari Karthik , Ravi Kumar Kallakunta , Sreevardhan Cheerla , Kaja Krishna Mohan , Syed Inthiyaz , Nelaturi Nanda Prakash , Bodapati Venkata Rajanna , Sk. Hasane Ahammad
Solar-powered bidirectional charging of an electric vehicle has three different modes of operation. The first mode of operation is “solar-powered electric vehicle charging” in which the vehicle is charged with solar energy. The second mode of operation is “grid-powered electric vehicle charging” which charges the vehicle in the absence of solar energy. The third mode of operation is “vehicle supplying to the grid” and in this mode, the vehicle energy is transferred back to the grid when there is demand to charge the other electric vehicles connected to the same grid. The system uses maximum power point tracking (MPPT) to improve power extraction from solar panels under standard test cell conditions, allowing for effective charging of electric cars. It also uses a proportional-integral (PI) controller to continually monitor the battery's state of charge (SOC). This controller modulates the duty cycle of pulse width modulation (PWM), which regulates the charging current. The charging system includes a buck-boost converter, which functions as a buck converter while supplying grid voltage to the vehicle, and a boost converter in supplying excess voltage of the vehicle to the grid. For three different modes of operation, the battery parameters such as voltage, current, and charging state are presented. The grid voltage and current are observed for the last two modes of operation.
Volume: 14
Issue: 2
Page: 382-391
Publish at: 2025-06-01

Camera-based advanced driver assistance with integrated YOLOv4for real-time detection

10.11591/ijai.v14.i3.pp2236-2245
Keerthi Jayan , Balakrishnan Muruganantham
Testing object detection in adverse weather conditions poses significant chal lenges. This paper presents a framework for a camera-based advanced driver assistance system (ADAS) using the YOLOv4 model, supported by an electronic control unit (ECU). The ADAS-based ECU identifies object classes from real-time video, with detection efficiency validated against the YOLOv4 model. Performance is analysed using three testing methods: projection, video injection, and real vehicle testing. Each method is evaluated for accuracy in object detection, synchronization rate, correlated outcomes, and computational complexity. Results show that the projection method achieves highest accuracy with minimal frame deviation (1-2 frames) and up to 90% correlated outcomes, at approximately 30% computational complexity. The video injection method shows moderate accuracy and complexity, with frame deviation of 3-4 frames and 75%correlated outcomes. The real vehicle testing method, though demand ing higher computational resources and showing a lower synchronization rate (> 5 frames deviation), provides critical insights under realistic weather condi tions despite higher misclassification rates. The study highlights the importance of choosing appropriate method based on testing conditions and objectives, bal ancing computational efficiency, synchronization accuracy, and robustness in various weather scenarios. This research significantly advances autonomous ve hicle technology, particularly in enhancing ADAS object detection capabilities in diverse environmental conditions.
Volume: 14
Issue: 3
Page: 2236-2245
Publish at: 2025-06-01

BioTapSync: revolutionizing data synchronization with human touch

10.11591/ijai.v14.i3.pp2528-2536
Sohil Shah , Harshal Shah
Human Tap introduces a new way to ensure secure data transmission synchronization by integrating advanced technologies. Motivated by the need for secure and efficient communication, it uses both near field communication (NFC) and human field communication (HFC) to provide a wide range of secure communication solutions. The aim is to create a system with detailed specifications, including maximum coverage range, frequency of operation, type of communication, and data rate for each protocol. These specifications are tailored for various applications, such as credit card payments, e-ticket bookings, E-ZPass systems, and item tracking. A notable contribution of Human Tap is its ability to achieve microsecond-level accuracy for distances up to 2 cm by thoroughly analyzing the relationship between distance and time. This innovative synchronization method not only ensures a secure data transmission environment but also shows remarkable flexibility, effectively addressing the challenges of modern communication systems. Human Tap sets a new benchmark for secure and adaptable data transmission technologies, paving the way for future advancements in the field. The objective is to establish a robust and versatile data transmission method that can be adapted to a wide range of modern applications.
Volume: 14
Issue: 3
Page: 2528-2536
Publish at: 2025-06-01
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