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All Journal Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics Briliant: Jurnal Riset dan Konseptual
Syamputra, Dhani Nur Indra
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Physics

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PREDICTIVE DECONVOLUTION BASED ON SEISMIC WAVEFORM DIAGNOSTICS FOR ENHANCED MARINE IMAGING RESOLUTION Fahmi, Muhammad; Syamputra, Dhani Nur Indra; Raharjo, Wiji; Sari, Tri Wulan; Nafian, Muhammad
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics AL-FIZIYA JOURNAL OF MATERIALS SCIENCE, GEOPHYSICS, INSTRUMENTATION AND THEORETICAL PHYSICS VOL.8, N
Publisher : Physics Study Programme, Faculty of Science and Technology UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/fiziya.v8i1.48064

Abstract

Short-period multiples are a persistent problem in marine seismic processing, particularly in shallow-water environments where near-surface reverberations interfere with primary reflections and decrease temporal resolution. Predictive deconvolution remains a widely used method for attenuating such coherent noise. However, conventional implementations often apply fixed operator parameters, limiting their adaptability to waveform variations across time and offset. This study introduces a predictive deconvolution framework guided by seismic waveform diagnostics, in which operator parameters specifically prediction lag and filter length are selected based on trace characteristics such as waveform periodicity and spectral energy distribution. The approach is designed to improve multiple suppression while preserving the fidelity of primary reflections on a 2D marine pre-stack seismic dataset acquired in a shallow offshore setting characterized by strong short-period multiples and limited bandwidth. The results demonstrate around 25% increase in frequency bandwidth, improved reflector continuity, and reduced coherent noise in pre-stack gathers. Compared to conventional deconvolution, the waveform informed design achieves a more effective balance between attenuation and resolution. The proposed approach is applicable to modern marine datasets where high-resolution imaging is limited by near-surface interference.
Evaluasi Hasil Kinerja Tekno-Ekonomi Pembangkit Listrik Tenaga Surya (PLTS) Pada Bangunan Perguruan Tinggi di Indonesia Mohammad, Luthfansyah; Istiqomah, Aulia; Tahier, Ahmad Ridlo Hanifudin; Syamputra, Dhani Nur Indra; Roodhiyah, Lisa’ Yihaa
BRILIANT: Jurnal Riset dan Konseptual Vol 8 No 2 (2023): Volume 8 Nomor 2, Mei 2023
Publisher : Universitas Nahdlatul Ulama Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28926/briliant.v8i2.1360

Abstract

Dimulainya kegiatan sekolah normal dan universitas membuat sektor pendidikan mengalami peningkatan konsumsi listrik dibandingkan tahun-tahun sebelumnya sebelum merebaknya pandemi. Sayangnya, peningkatan konsumsi listrik berbanding lurus dengan peningkatan emisi yang besar. Oleh karena itu, diperlukan penggunaan teknologi energi terbarukan yang ramah lingkungan yang dapat langsung diterapkan di bidang pendidikan. Studi ini berfokus pada evaluasi kinerja sistem panel surya yang telah terpasang di Gedung Dekanat Universitas Diponegoro, Indonesia. Dua metode digabungkan dalam melakukan analisis; Simulasi perangkat lunak PVsyst Versi 7.0, dan penilaian langsung. Hasil asesmen lapangan menunjukkan bahwa sistem yang terpasang mampu menghasilkan energi sebesar 37.068 MWh per tahun dan hanya memiliki selisih sebesar 3.372 MWh saat disimulasikan. Terdapat kerugian sebesar 2,02% dari nilai produksi ideal yang disebabkan oleh beberapa faktor klimatologis dan teknis. Secara umum dengan target penghematan energi sebesar 16,6%, sistem yang dibangun berhasil mencapai 16,51%. Analisis kelayakan ekonomi menunjukkan bahwa nilai Levelized Cost of Electricity adalah Rp. 1.153,93 per kWh, nilai Payback Period 9,4 tahun, Net Present Value sekitar Rp. 364.331.588,4, dan Return of Investment sebesar 102,1%. Akhirnya, berdasarkan penilaian evaluasi, dapat diputuskan bahwa secara teknis sistem dapat bekerja dengan lancar sesuai target yang ditentukan, memiliki proyeksi ekonomi yang menguntungkan, dan memiliki potensi nilai investasi yang positif
Co-Authors Istiqomah, Aulia Mohammad, Luthfansyah MUHAMMAD FAHMI Nafian, Muhammad Roodhiyah, Lisa’ Yihaa Tahier, Ahmad Ridlo Hanifudin Tri Wulan Sari, Tri Wulan Wiji Raharjo