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All Journal Sinkron : Jurnal dan Penelitian Teknik Informatika International Journal of Renewable Energy Development
Jamrud Aminuddin
Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Jenderal Soedirman
Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering

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Numerical Analysis of Energy Converter for Wave Energy Power Generation-Pendulum System Jamrud Aminuddin; Mukhtar Effendi; Nurhayati Nurhayati; Agustina Widiyani; Pakhrur Razi; Wihantoro Wihantoro; Abdullah Nur Aziz; R Farzand Abdullatif; Sunardi Sunardi; Bilalodin Bilalodin; A Arifin
International Journal of Renewable Energy Development Vol 9, No 2 (2020): July 2020
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.9.2.255-261

Abstract

The wave energy power generation-pendulum system (WEPG-PS) is a four-wheeled instrument designed to convert wave power into electric energy. The first wheel is connected to the pendulum by a double freewheel, the second and third are ordinary wheels, while the fourth is a converter component that is axially connected to the electric generator. This design used the Euler-Lagrange formalism and Runge-Kutta method to examine an ideal dimension and determine the numerical solution of the equation of motion related to the rotation speed of the wheels. The result showed that the WEPG-PS' converter system rotated properly when its mass, length, and moment of inertia are 10 kg, 2.0 m, and 0.25 kgm2, respectively. This is in addition to when the radius of the first, second, third, and fourth wheels are 0.5, 0.4, 0.2, and 0.01 m, with inertia values of 0.005, 0.004, 0.003, and 0.1 kgm2. The converter system has the ability to rotate the fourth wheel, which acts as the handle of an electric generator at an angular frequency of approximately 500 - 600 rad/s. The converter system is optimally rotated when driven by a minimum force of 5 N and maximum friction of 0.05. Therefore, the system is used to generate electricity at an amplitude of 0.3 - 0.61 m, 220 V with 50 Hz. Besides, the lower rotation speed and frequency of the energy converter of the WEPG-PS (300 rad/s) and induction generator (50 Hz) were able to generate electric power of 7.5 kW. 
The Development, Trends, and Challenges of Smart Mosque Research: A Systematic Literature Review 2021–2026 Jamrud Aminuddin; Safiq Safiq; Kartika Sari
Sinkron : jurnal dan penelitian teknik informatika Vol. 10 No. 4 (2026): Research Articles October 2026
Publisher : Politeknik Ganesha Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33395/sinkron.v10i4.16768

Abstract

Smart Mosque research has expanded from energy efficiency and building automation toward wider digital services involving artificial intelligence, Internet of Things, data management, operational security, and inclusivity. Objective: This study maps the development, trends, and challenges of Smart Mosque research published between 2021 and 2026 using a Context-Technology-Impact framework. Methods: A PRISMA 2020-guided systematic literature review was conducted using reproducible PubMed and Crossref searches and second-reviewer validation. Records were screened against mosque/masjid or Hajj/Umrah technology relevance, assessed using an eight-item quality-appraisal instrument, and classified by evidence-access status. Results: The search produced 1,664 exported records and 870 records after deduplication. After staged screening, second-reviewer validation, and excluded-sample consensus, 72 records were retained, consisting of 10 full-text confirmed records and 62 limited-access/provisional records. The evidence shows four dominant directions: artificial intelligence for operational security and Hajj/Umrah crowd monitoring, energy and sustainability systems, Internet of Things and automation, and digital mosque-management platforms. Conclusion: Smart Mosque research is developing into a broader digital-operational ecosystem, but the evidence remains methodologically uneven because many records were available only at abstract or limited-access level and 2026 data were partial up to August 2026. Future studies should prioritize full-text-verifiable empirical research, multi-site evaluation, system reliability, user-centered assessment, privacy and data governance, and inclusive digital services.
Co-Authors A Arifin Abdullah Nur Aziz Bilalodin Bilalodin Kartika Sari Mukhtar Effendi Nurhayati Nurhayati Pakhrur Razi R Farzand Abdullatif Safiq Safiq Sunardi Sunardi Widiyani, Agustina Wihantoro Wihantoro