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All Journal TELKOMNIKA (Telecommunication Computing Electronics and Control) Insisiva Dental Journal : Majalah Kedokteran Gigi Insisiva Indonesian Journal of Electrical Engineering and Computer Science
Sunarno Sunarno
Universitas Gadjah Mada
Computer Science & IT Dentistry

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Premature Loss dan Perkembangan Rahang Laelia Dwi Anggraini; Rinaldi Budi Utomo; Sunarno Sunarno; Dibyo Pramono
Insisiva Dental Journal: Majalah Kedokteran Gigi Insisiva Vol 7, No 2 (2018)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/di.7297

Abstract

Premature loss adalah kondisi dimana gigi desidui yang sudah tanggal sebelum waktunya sementara gigi permanen pengganti belum tumbuh. Kehilangan gigi desidui yang terlalu dini akan berpengaruh pada keberhasilan erupsi gigi apabila ada pengurangan ruang pada lengkung gigi. Kondisi premature loss terkait pula dengan perkembangan rahang. Rahang adalah bagian dari struktur total kepala dan setiap rahang bisa mempunyai hubungan posisional yang bervariasi terhadap struktur lain dari kepala, variasi semacam itu bisa terjadi pada ketiga bidang yaitu sagital, vertikal, dan lateral. Setiap kondisi patologis yang mempengaruhi pertumbuhan rahang bisa menimbulkan efek besar terhadap oklusi gigi. Pertumbuhan maksila dipengaruhi oleh pertumbuhan otak, pertumbuhan tulang cranial dan nasal septal memberikan pengaruh signifikan terhadap pergerakan maju mundur maksila. Mandibula merupakan tulang kraniofasial yang sangat mobile dan merupakan tulang yang sangat penting karena terlibat dalam fungsi-fungsi vital antara lain pengunyahan, pemeliharaan jalan udara, berbicara, dan ekspresi wajah. Gerakan pertumbuhan mandibula pada umumnya dipengaruhi oleh perubahan yang terjadi di maksila. Pertumbuhan prosesus alveolaris sangat aktif selama erupsi dan berperan penting selama erupsi serta terus memelihara hubungan oklusal selama pertumbuhan vertikal maksila dan mandibula. Kesimpulan dari telaah literatur ini yaitu kondisi rongga mulut karena premature loss secara langsung atau tidak langsung berpengaruh pada tumbuh kembang rahang.
Design and measurement of the receiving antenna for electromagnetic field energy harvesting in UHF band Fahmy Rinanda Saputri; Sunarno Sunarno; Singgih Hawibowo
Indonesian Journal of Electrical Engineering and Computer Science Vol 31, No 2: August 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v31.i2.pp681-691

Abstract

This paper aims to design a receiving antenna for harvesting energy using the wireless energy transfer method based on the ultra-high frequency (UHF) band. The study was conducted by comparing four types of the receiving antenna design. A mathematical and experimental analysis has been done to evaluate the performance of the designed antennas. A Yagi-Uda antenna is utilized as the transmitter. The results show that the zig-zag type antenna has the best performance. It can receive electromagnetic energy from a transmitter with maximum efficiency is 0.1% for the receiving antenna volume of 0.34 cm3. The proposed method can meet the energy necessity of an implant device with a charging time of approximately 21.61 hours for the 700 mAh rechargeable battery capacity. As our preliminary conclusion, based on our results, this proposed method can be used as a reference for the practice in the WET field and the medical and restricted areas in the electromagnetic energy harvesting case.
Earthquake magnitude prediction based on radon cloud data near Grindulu fault, Indonesia using the statistical method Sunarno Sunarno; Thomas Oka Pratama; Faridah Faridah; Nugroho Ananto; Hermin Kartika Sari; Rony Wijaya; Memory Motivanisman Waruwu
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 23, No 3: June 2025
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v23i3.26494

Abstract

Earthquake prediction is one of the most challenging and vital tasks that demands new methodologies for improving the accuracy of predictions. The research aims to present how radon gas concentration fluctuations are associated with the prediction of earthquakes in the Eurasian-Indo-Australian Plates. The paper discusses a statistical method of forecasting earthquake magnitudes greater than M4.5 from real-time radon gas monitoring close to the Grindulu Fault, Pacitan, East Java, Indonesia. This developed model has had the least errors in the form of mean absolute error (MAE), 0.30; mean absolute percentage error (MAPE), 0.06; root mean square error (RMSE), 0.55; mean squared error (MSE), 0.30; symmetric mean absolute percentage error (SMAPE), 0.06; complex normalized mean absolute percentage error (cnMAPE), 0.97; error absolute average (EAA), 0.30; and error relative average (ERA), -0.11, showing great accuracy and uniformity in prediction. These observations support the model’s efficiency that may be adopted in earthquake early warning systems for better disaster preparedness. Predictive errors are reduced, and there is support for improved disaster management strategy, public safety education, and effective emergency response personnel training. This study can be used as a foothold for further advances in earthquake prediction methodologies and refinement of early warning systems.
Co-Authors Dibyo Pramono Fahmy Rinanda Saputri Faridah Faridah Hermin Kartika Sari Laelia Dwi Anggraini, Laelia Memory Motivanisman Waruwu Nugroho Ananto Rinaldi Budi Utomo Rony Wijaya Singgih Hawibowo Thomas Oka Pratama