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All Journal Jambura Physics Journal Jurnal Sibermas (Sinergi Pemberdayaan Masyarakat) Jurnal Ilmiah Wahana Pendidikan Jurnal Riset Fisika Indonesia

Meilan Demulawa

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Author-ID : 3530700

Religion Astronomy Computer Science & IT Earth & Planetary Sciences Education Energy Engineering Materials Science & Nanotechnology Medicine & Pharmacology Physics Public Health Social Sciences Other

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Articles

IDENTIFIKASI STRUKTUR BAWAH PERMUKAAN DI DAERAH PANAS BUMI DESA PANCURAN KECAMATAN SUWAWA SELATAN MENGGUNAKAN METODE GEOLISTRIK KONFIGURASI SHCLUMBERGER Meilan Demulawa; Wiwin Kobi
Jambura Physics Journal Vol 1, No 2 (2019): October 2019
Publisher : Universitas Negeri Gorontalo

Penerapan Metode Geolistrik Resistivitas Konfigurasi Wenner Untuk Mengetahui Dugaan Rembesan Polutan Sampah Di Sekitar Tempat Pembuangan Akhir (TPA) Desa Tanjung Belit Kabupaten Rokan Hulu Ika Daruwati; Meilan Demulawa
Jurnal Riset Fisika Indonesia Vol 1 No 1 (2020): Desember 2020
Publisher : Jurusan Fisika, Universitas Bangka Belitung

A resistivity geoelectric research has been carried out to identify the suspected seepage of garbage pollutants around the Tanjung Belit village garbage dump. The study was conducted in 2 tracks. On track 1 with a track length of 100 m and 35 measurement points, the resistivity is in the range of 0.795-50.1 Ωm. On the 2nd track, 75 m long and 32 measuring points. The method used is the geoelectric resistivity method of the Wenner configuration with data processing using the res2dinv application which has a large resistivity ranging from 1.22-44.9 Ωm. Based on this resistivity, it can be seen that there is waste pollutant seepage located at a depth of 0.825–7.41 m. Keywords:Wenner, geolistric method, RES2DINV

Program pelatihan peningkatan kapasitas perangkat desa Wonggahu kabupaten Boalemo Mohamad Jahja; Meilan Demulawa
Jurnal Sibermas (Sinergi Pemberdayaan Masyarakat) Vol 11, No 5 (2022): Jurnal Sibermas (Sinergi Bersama Masyarakat)
Publisher : Univeristas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/sibermas.v11i5.12365

The capacity training program for the village apparatus of Wonggahu, Boalemo district, was carried out by KKN students from September to October, covering village digitization workshops, covd-19 vaccination program and BIMTEK.

Analisis Frekuensi Resonasi Jembatan Bantar III Bantul Yogyakarta Terhadap Kejadian Gempabumi Yogyakarta Meilan Demulawa; Dewa Gede Eka Setiawan; Muhammad Yunus; Rusni R Rifai
Jurnal Ilmiah Wahana Pendidikan Vol 8 No 24 (2022): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

A vibration resonance studies were performed at Bantar III Bridge Kali Progo Sedayu Sub-district of Bantul. The study aims to determine the natural frequency of the bridge and compare it with the frequency of earthquakes to determine the possibility of resonance. Spectral analysis of the earthquake and the bridge using the FFT to obtain the dominant frequency of the bridge and the frequency of earthquakes. The natural frequency of the bridge obtained about 3,5 Hz – 5Hz. This is apropriate with the analytical calculation based on the construction of the bridge that showed the natural frequency about 3.51 Hz - 5.18 Hz. The frequency survace wave of the Yogyakarta earthquake which took place within the periode 2009 – 2010 is 1,1 Hz – 3,3 Hz. Comparison of natural frequency experimentally and the frequency of earthquakes indicated very small possibility of resonance amplification occured in the Bantar III bridge Kali Progo Yogyakarta.

THERMAL PERFORMANCE OF RESIDENTIAL HAUSE USING GREEN ROOF BY UTILIZING THE PASSION FRUIT PLANTS (PASSIFLORA EDULIS) AS ROOF COVER Suwaldi Mopangga; Mohamad Jahja; Dewa Gede Eka Setiawan; Mursalin Mursalin; Idawati Supu; Meilan Demulawa; Abdi Gunawan Djafar
Jambura Physics Journal Vol 5, No 1 (2023): April 2023
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jpj.v5i1.19358

Urbanization is the movement of people from villages to cities, this has caused an increase in population growth in urban areas resulting in increased demand for development which has reduced land for green spaces, green roofs are present as a farming concept amidst limited land in urban areas as well as assisting in passive cooling. The process of photosynthesis must play a role in roof shading. The selection of vegetation in the form of passion fruit vines as a roof covering material can spread up to 24 m, the object of research is a house in a housing complex by comparing two rooms, using a vegetation roof cover and without a vegetation roof cover, based on the results obtained a room with a vegetation roof cover experienced a decrease in temperature as the growth of vines covered the roof, the results obtained were a comparison between the two rooms, namely 0.1℃ in January, 1.1℃ in February and 2.6℃ in March when the peak temperature is during the day.

Analisis Pergeseran Secara Vertikal dan Arah Gerakan Partikel di Jembatan Bantar III Kulon Yogyakarta Akibat Dilewati Kendaraan Menggunakan Metode Mikrotremor Meilan Demulawa
Jurnal Ilmiah Wahana Pendidikan Vol 9 No 8 (2023): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.8075069

This study aims to determine how much the maximum vertical displacement of vibrations experienced by the bridge when something passes over it and compare it with the complete removal permitted by SNI 03 – 2847 – 2002. To find out the direction of movement of vibration particles when a vehicle/something crosses the bridge. The maximum vertical displacement value of bridge vibration due to vehicle load experimentally ranges from 8.5 mm – 29.2 mm and theoretically from 127.5 mm – 170 mm. This value (experimentally) is smaller than the results obtained in theory, which means that the bridge structure can still withstand the instantaneous external loads that cross the bridge. At the same time, the direction of movement of the bridge particles passed by vehicles is generally vertical to the direction of the bridge.

Analisis Potensi Longsor Berdasarkan Amplifikasi Kendaraan Di Jalan Trans Sulawesi Kecamatan Tomilito Meilan Demulawa
Jurnal Ilmiah Wahana Pendidikan Vol 9 No 10 (2023): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.8075140

This scientific work aims to determine the value of vehicle amplification. Data processing uses Geopsy software with HVSR analysis, and the analysis results produce amplification values. From the results of the discussion, it can be concluded that for areas where landslides have not occurred, locations I, II, and V. Location I with low soil classification, the amplification value of each truck vehicle is 2.52, car 2.63, and motorcycle 2.26. In location II, where landslides have not yet occurred, the medium soil classification is for trucks with an amplification value of 3.47. In contrast, the low classification for cars and motorcycles has an amplification value of 2.73 and 2.77, respectively. For location V, which is far from the main road, the amplification value of 4.26 is included in the medium soil classification. Meanwhile, landslides have occurred in locations III, IV, and VI. Locations III, IV, and VI are where landslides have occurred with moderate and high soil classifications. Location III is included in the moderate classification with an amplification value of 4.08 for trucks, 4.37 for cars and 4.38 for motorbikes. Location IV, the amplification value of each vehicle (6.47 (truck), 6.08 (car)) is included in the high classification, while the amplification value of motorbike vehicles is 5.73 in the medium classification. Location VI is far from the main road, and landslides have occurred with an amplification value 6.20 with high soil classification

Analisis Frekuensi Alami Tanah di Daerah Rawan Longsor di Kecamatan Tomilito Menggunakan Metode Mikrotremor Meilan Demulawa
Jurnal Ilmiah Wahana Pendidikan Vol 8 No 9 (2022): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.8106557

The research was carried out in Tomilito District, North Gorontalo Regency, which is an area prone to landslides. The purpose of this study is to determine the natural frequency of the soil. Data from the field or microtremor were analyzed using Geopsy software with HVSR (Horizontal to Vertical Spectral Ratio) which then obtained each natural frequency value of the soil. The conclusion of this study At points 1 and 4 the frequency values are in the range of 0.39 Hz -0.67 Hz included in the soil type IV classification including areas prone to landslides because in that area the soil is classified as soft soil formed from deltaic deposits, silt, delta sedimentation, silt, topsoil, humus, soft soil, points 2 and 3 are included in the soil type I classification with a natural frequency range of 18.31 Hz -19.93 Hz, while points 5 and 6 have a natural frequency of the soil is in the range of 3.32 Hz - 6.43 Hz included in the soil type II classification included in the soil type II and I classification, this area when a landslide occurs is still able to withstand the carrying load because the soil is included in hard soil.

Co-Authors Abdi Gunawan Djafar Dewa Gede Eka Setiawan, Dewa Gede Eka Ika Daruwati Jahja, Mohamad Muhammad Yunus Mursalin . Rusni R Rifai Supu Idawati Suwaldi Mopangga Wiwin Kobi

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