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All Journal BERKALA FISIKA SAINS DAN MATEMATIKA YOUNGSTER PHYSICS JOURNAL
Hernowo Danusaputro
Departemen Fisika, Fakultas Sains Dan Matematika, Universitas Diponegoro, Semarang
Mathematics Physics

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Journal : SAINS DAN MATEMATIKA

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INVERSI MODEL BASED UNTUK GAMBARAN LITOLOGI BAWAH PERMUKAAN FR, Tabah; Danusaputro, Hernowo
JURNAL SAINS DAN MATEMATIKA Volume 18 Issue 3 Year 2010
Publisher : JURNAL SAINS DAN MATEMATIKA

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ABSTRACT-IncreosW of occuracy underground level imaging can be performed by using seismic inversion method. Apply inversion method to seismic data produce acoustic impedance value. Acoustic impedmce related directly with rock characteristic, so can be separating lithology. Based model irwersion built geologt model, then conelated with seismic data, upgrading iterative to get good suitable with seismic data. Result of based model funersioncan be able to produce result of inversion which is having same trend acoustic impedance with the original data seismic, thot also between syltthetic seismic and original seismic, so can be separating lithologt boundary conectly os vertical or continue as lateral.Key word: acoustic impedance, based model inversion, lithologyPermalink : http://ejournal.undip.ac.id/index.php/sm/article/view/2950
SISTEM MONITORING KEAMANAN KANDANG SAPI BERBASIS BORLAND DELPHI 7.0 Annisa, Nur; Danusaputro, Hernowo
JURNAL SAINS DAN MATEMATIKA Volume 18 Issue 4 Year 2010
Publisher : JURNAL SAINS DAN MATEMATIKA

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ABSTRACT--A software for the cow shed security system has been made with Borland Delphi 7.0.This program can observe a cow shed security optimally.The cow shed security monitoring system is done byusing LDR (Light Dependent Resistor) censor. Borland Delphi 7.0 program will display the cow shed securitymonitoring result from a data which sent by a censor. Beside that, this software programming uses BorlandDelphi 7.0 which connecting to Microsoft Access 2007 as a data saving. From this software making which hasbeen done, we had the result that this system can monitoring the cow of shed by LDR (Light Dependent Resistor)censor. Testing result shows that if someone try to enter the cow shed area, automatically LDR (Light DependentResistor) censor will detects and showed software on PC or laptop. Beside that, we will hear the sound of alarmas early warning system.KeyWords: Cow shed, Borland Delphi7.0, database.
Speed Model Processing using Ray Tracing Method for 2D Depth Domain Migration (Pre Stack Depth Migration) on the field "AV" Evita, Anjar; Danusaputro, Hernowo
JURNAL SAINS DAN MATEMATIKA Volume 22 Issue 4 Year 2014
Publisher : JURNAL SAINS DAN MATEMATIKA

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The research was conducted to process 2D seismic data by Pre Stack Depth Migration (PSDM) method on the field “AV”. The purpose of this study was to determine the appropriate interval velocity model to manage the PSDM methods work. Interval velocity model obtained from the initial estimate using coherency inversion velocity model is usually not convergent. Interval velocity model should be improved through several stages in order the estimated speed could be closer to the actual speed value. Some initial interval velocity model parameters should be improved to be more sensitive to lateral velocity variations for PSDM work. The method used to improve the velocity model was a horizon-based tomography using the ray tracing concept. These methods improved the layer speed and reflector geometry to produce a new interval velocity model. Model errors should be corrected by residual move out analysis. The best analysis obtained was from the fifth iteration to eliminate errors and flatten depth gathers. The proper value of the speed produced good quality images. The results of this research was PSDM Section or PSDM cross-section. PSDM cross-section has a good image quality to represent the geological structures in the earth's sub surface.
Co-Authors Agus Muhidin Agus Muhidin Ali Djamhuri Anjar Evita Anjar Evita Apriana Apriana Dimas Pramudito Gian Antariksa Kusworo Adi Luxy Rizal Fathoni Mirsari Adiyani C Moh. Irfan Saputra Haris Mualimin Mualimin Muhammad Irham Nurwidiyanto Muhammad Isom Ashar Muhammad Mualimin Nur Annisa Prasetyo Abdi Retno Septiani Rina Dwi Indriana Rr. Tony Yulianto Saiful Widianto Sheyza Rery Dynza Anggary Siti Helmyati Tabah FR Tyas Vicri Hijria Udi Harmoko Yose Rizal Triarto