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All Journal Journal of Geoscience, Engineering, Environment, and Technology Jurnal Komputer Indonesia
Adriansyah, David
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Computer Science & IT Earth & Planetary Sciences Engineering Environmental Science Physics

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Application of the Forward Chaining Method in Building a Student Counseling Expert System at SMAN 03 Bengkulu City Adriansyah, David; Asnawati, Asnawati; Suryana , Eko
Jurnal Komputer Indonesia Vol. 1 No. 1 (2022): Juni
Publisher : Universitas Dehasen Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37676/jki.v1i1.26

Abstract

Implementation of guidance and counseling in schools has a very important role in realizing students as individuals who are independent, responsible, creative and productive workers. Guidance and counseling for students is needed in making appropriate choices or to solve problems faced by students. The student counseling expert system at SMA Negeri 3 Bengkulu City was created to facilitate the counseling process for students in schools based on the problems and symptoms experienced by students. This expert system adopts the knowledge of the BK teacher, where there are 25 problems that often occur in schools. In the process of diagnosing the results of student consultations, the application will select the problems experienced by students, then choose the symptoms experienced by students, thus displaying the possible percentage level of the problem. The student counseling expert system at SMA Negeri 3 Bengkulu City was created using the Visual Basic .Net programming language. Based on the tests that have been carried out, the functionality of the student counseling expert system at SMA Negeri 3 Bengkulu City runs as expected, and the application is able to display the results of student counseling consultations through the possible percentage levels of problems and symptoms experienced by students.
Numerical Simulation of Pyroclastic Flow of Karangetang Volcano Based on 2015 Eruption Activity Banggur, Willi FS; Patria, Cahya; Kriswati, Estu; Abdurrachman, Mirzam; Suantika, Gede; Syahbana, Devy Kamil; Korompis, Richard; Adriansyah, David; Gurasali, Aditya; Wenas, Alfred; Praja, Kurnia; Sentosa, Imam; Kusnadi, Iing; Shimomura, Makoto
Journal of Geoscience, Engineering, Environment, and Technology Vol. 9 No. 1 (2024): JGEET Vol 09 No 01 : March (2024)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2024.9.1.14217

Abstract

On May 7-9, 2015 the eruptive activity of Mount Karangetang released pyroclastic flows towards the Batuawang River for 3.6 km and hit Kora kora village which is located south of the Main Crater. This pyroclastic flow originated from lava flows during the effusive eruption period. MODIS satellite image hotspot data shows the lava flow extrusion rate and total volume at the peak began to increase since April 2015 and continued to show an increase until December 2015, with the estimated volume and lava extrusion rate on  April 22, 2015 reaching 4.16x106 m3 and 0.53 m3/s, respectively, and on December 9, 2015 the volume reached 1.67x107 m3 with a lava extrusion rate of 1.97 m3/s. The results of field checks show that this pyroclastic flow is dominated by block and ash, and by using numerical simulations show the deflection of pyroclastic flow in accordance with the flow field of the Batuawang river, and the splash of pyroclastic flow towards Kora kora village in addition to the location adjacent to the river flow and also controlled by the narrowing of the river channel due to the accumulation of material in the flow field. A total of 8 numerical simulation cases have been carried out, and in our opinion with an input volume of 500 x103 m3 and a flow material friction of 0.5 is a case that corresponds to a flow event that reaches a distance of 3.6 km from the Main Crater.  Taking into account the current activity conditions we used the same parameters to estimate the area that could be affected by pyroclastic flows in the future. Numerical simulation show that the pyroclastic flow traveled 5 km in a south-southwest direction from the top of the main crater.
Co-Authors Abdurrachman, Mirzam Asnawati Asnawati Banggur, Willi FS Cahya Patria, Cahya Estu Kriswati Gede Suantika Gurasali, Aditya Korompis, Richard Kusnadi, Iing Praja, Kurnia Sentosa, Imam Shimomura, Makoto Suryana , Eko Syahbana, Devy Kamil Wenas, Alfred