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All Journal Journal of Moeslim Research Technik Techno Agriculturae Studium of Research Journal of Social Entrepreneurship and Creative Technology Journal of Humanities Research Sustainability Journal of Multidisciplinary Sustainability Asean
Yui Nakamura
Kyoto University
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Languange, Linguistic, Communication & Media Library & Information Science Other

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IMMERSIVE INNOVATION FOR SOCIAL CHANGE: VIRTUAL AND AUGMENTED REALITY IN COMMUNITY-BASED ENTREPRENEURSHIP Haruto Takahashi; Yui Nakamura; Ethan Tan; Rana Wijaya
Journal of Social Entrepreneurship and Creative Technology Vol. 3 No. 2 (2026)
Publisher : Yayasan Adra Karima Hubbi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70177/jseact.v3i2.3823

Abstract

Service learning has gained recognition as an effective pedagogical approach that bridges academic learning with community service. This study examines the integration of service learning in higher education, evaluating its impact on students’ academic performance, personal development, and community engagement. The research aimed to explore how service learning can enhance students’ practical skills, critical thinking abilities, and social responsibility, while also contributing to the community’s well-being. A mixed-methods approach was employed, combining quantitative surveys to assess students’ academic performance and qualitative interviews to understand their personal experiences with service learning. The results indicate that students who participated in service learning programs showed significant improvements in their ability to apply theoretical knowledge in real-world contexts, with 75% of students reporting an increase in problem-solving and teamwork skills. Additionally, service learning fostered a greater sense of civic responsibility, with students expressing a stronger commitment to community service and social justice. The study concludes that integrating service learning into higher education curricula promotes holistic student development and contributes to community-based solutions. The findings suggest that service learning should be further incorporated into educational frameworks to provide students with meaningful opportunities for engagement and personal growth.
ELECTROCHEMICAL SYSTEMS ENGINEERING: MODELING, CONTROL, AND DEGRADATION ANALYSIS Yui Nakamura; Li Wei; Arfan Arfan
Journal of Moeslim Research Technik Vol. 3 No. 1 (2026)
Publisher : Yayasan Adra Karima Hubbi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70177/technik.v3i1.3341

Abstract

The global transition toward sustainable energy infrastructure relies heavily on the reliability and longevity of electrochemical energy storage systems. However, conventional management strategies often struggle with the highly non-linear dynamics and unobservable internal degradation mechanisms of these devices. This research addresses the critical need for advanced systems engineering by evaluating a physics-based framework for real-time modeling, state-aware control, and non-invasive degradation analysis. The study aims to optimize the balance between operational performance and capacity retention through the implementation of reduced-order Doyle-Fuller-Newman models. Utilizing a multi-physics experimental design, forty lithium-ion cells were subjected to high-rate cycling while monitored by an adaptive observer-based controller. Results demonstrate that the physics-based approach achieves a 75% reduction in state-of-estimation error compared to empirical models, while significantly mitigating internal resistance growth. Furthermore, the “health-aware” control strategy successfully improved capacity retention by 7.2% over 1,000 cycles by preemptively preventing lithium plating thresholds. This research concludes that internal state visibility is a prerequisite for achieving maximum electrochemical utilization. The findings provide a scalable blueprint for the next generation of resilient battery management systems, asserting that the integration of multi-scale physical models into control architectures is essential for securing the future of global energy storage.
Application of Robotics in Large-Scale Agriculture in Australia Loso Judijanto; Haruto Takahashi; Yui Nakamura
Techno Agriculturae Studium of Research Vol. 1 No. 4 (2024)
Publisher : Yayasan Adra Karima Hubbi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70177/agriculturae.v1i4.1597

Abstract

Large-scale agriculture in Australia faces various challenges, such as labor shortages, land management efficiency, and suboptimal use of resources. Robotic technology offers innovative solutions to address these problems by automating agricultural processes, such as planting, fertilizing, and harvesting. This study aims to evaluate the impact of the application of robotics technology in large-scale agriculture in Australia, including its impact on productivity, resource use efficiency, and environmental sustainability. The research uses a combined qualitative and quantitative approach. Quantitative data was collected through surveys of farmers in different regions of Australia, while qualitative data was obtained from in-depth interviews with farmers and agronomists. The data collected was analyzed to understand the impact of robotics technology on productivity and resource use. The results show that the use of robotic technology increases productivity by 20% in the wheat and cotton sectors. In addition, the use of sensor-based automated irrigation systems reduces water consumption by up to 30%, while drones for pesticide applications help reduce chemical use by up to 25%. Robotics technology has contributed significantly to improving the efficiency of large-scale agriculture in Australia, both in terms of increasing crop yields and reducing resource use. These findings suggest that robotics can be a sustainable solution for modern agriculture, although more research is needed to evaluate its long-term impact on the environment.
DEVELOPMENT OF AN IOT-BASED AUTOMATED DRIP IRRIGATION AND FERTIGATION SYSTEM FOR CHILI FARMING IN ARID REGIONS OF EAST JAVA Miku Fujita; Yui Nakamura; Kaito Tanaka
Techno Agriculturae Studium of Research Vol. 2 No. 5 (2025)
Publisher : Yayasan Adra Karima Hubbi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70177/agriculturae.v2i5.2960

Abstract

Chili farming in arid regions of East Java faces persistent challenges related to water scarcity, inefficient irrigation practices, and inconsistent nutrient managment, which negatively affect crop productivity and farmers’ livelihoods. Traditional irrigation methods often result in excessive water use and uneven fertilizer distribution, limiting plant growth and increasing production costs. Recent advances in Internet of Things (IoT) technology offer promising solutions for precision agriculture by enabling automated, data-driven irrigation and fertigation systems tailored to specific crop and environmental conditions. This study aims to develop and evaluate an IoT-based automated drip irrigation and fertigation system designed for chili farming in arid areas of East Java. The system is intended to optimize water and nutrient usage while improving crop growth and resource efficiency. The research adopts a research and development (R&D) approach combined with experimental field testing. The system integrates soil moisture sensors, temperature and humidity sensors, nutrient solution controllers, and an IoT microcontroller connected to a cloud-based monitoring platform. The system was tested in selected chili farms over one growing season, with performance evaluated based on water consumption, fertilizer efficiency, plant growth indicators, and yield outcomes. The results indicate that the IoT-based system reduced water usage by approximately 30% and fertilizer consumption by 25% compared to conventional irrigation methods. Chili plants managed under the automated system showed more uniform growth, improved plant health, and a yield increase of 20%. Farmers also reported improved ease of irrigation management and real-time monitoring capabilities. The study concludes that IoT-based automated drip irrigation and fertigation systems are effective in enhancing water efficiency, nutrient management, and chili crop productivity in arid regions. The system demonstrates strong potential for supporting sustainable agriculture and climate-resilient farming practices in East Java.
Digital Journalism vs. Traditional Media: Changing the Face of Information Consumption Rifki Zaitul Ikhlas; Haruto Takahashi; Yui Nakamura
Journal of Humanities Research Sustainability Vol. 1 No. 6 (2024)
Publisher : Yayasan Adra Karima Hubbi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70177/jhrs.v1i6.1787

Abstract

Background. The digital era has changed the way people consume news, with digital journalism increasingly dominating compared to traditional media. Purpose. This study aims to understand the differences in consumption patterns and public trust in the two forms of media, as well as their implications for the quality of the information presented.   Method. The research methods used are a quantitative approach through a survey and a qualitative approach through in-depth interviews with journalists from both types of media. Results. The results of the study show that younger generations are more likely to use digital journalism because of accessibility and speed, while older generations still trust traditional media because of their credibility and validity. Although digital media is used more frequently, the level of trust in the information presented is relatively lower compared to traditional media. This shows that although digital journalism offers quick access, the credibility aspect is still an issue that needs to be improved. Conclusion. The conclusion of the study is that although digital journalism has changed the face of information consumption, the challenges related to the credibility and validity of information remain significant. This research provides important insights into how speed and credibility can be integrated for a more reliable future of journalism.
The Community Knowledge, Attitude, and Practices (KAP) Regarding Household Waste Sorting and its Impact on Public Health in Denpasar, Bali I Wayan Rediyasa; Yui Nakamura; Kaito Tanaka
Journal of Multidisciplinary Sustainability Asean Vol. 2 No. 5 (2025)
Publisher : Yayasan Adra Karima Hubbi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70177/ijmsa.v2i5.2816

Abstract

Background. Household waste mismanagement remains a persistent environmental and public health challenge in rapidly urbanizing Indonesian cities, including Denpasar, Bali. Despite government-led campaigns promoting household waste sorting, community responses vary widely, suggesting gaps in knowledge, attitude, and practices (KAP) that may influence health outcomes. Purpose. This study investigates the level of community KAP regarding household waste sorting and evaluates its potential impact on public health indicators within urban neighborhoods of Denpasar. The objective is to identify critical behavioral determinants that strengthen or weaken waste-sorting compliance and to assess how these behavioral patterns correlate with sanitation-related health risks. Method. A cross-sectional survey was conducted involving 420 households selected through multistage cluster sampling across four districts in Denpasar. Data were collected using a validated KAP questionnaire, complemented by direct environmental observations and secondary health records from local community health centers. Results. The results indicate that although 78% of respondents show adequate knowledge about waste sorting, only 52% demonstrate positive attitudes, and merely 39% consistently practice proper waste segregation. Poor practice scores strongly correlate with higher reports of mosquito-borne illnesses and household-level sanitation hazards (p < 0.05). Regression analysis suggests that attitude mediates the translation of knowledge into practice, making it a key leverage point for behavioral change. Conclusion. This study concludes that improving public health in Denpasar requires targeted interventions that address not only informational gaps but also motivational and infrastructural barriers to waste-sorting practices. Strengthening community engagement and localized environmental health programs is essential for sustainable behavioral compliance.
Co-Authors Arfan Arfan Ethan Tan Haruto Takahashi I Wayan Rediyasa Kaito Tanaka Li Wei Loso Judijanto Miku Fujita Rana Wijaya Rifki Zaitul Ikhlas