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All Journal International Journal of Electrical and Computer Engineering International Journal of Advances in Intelligent Informatics Jurnal Geosaintek Proceeding of the Electrical Engineering Computer Science and Informatics Journal of Applied Geospatial Information Teras Jurnal Jambura Geoscience Review Buletin Poltanesa PROFICIO: Jurnal Pengabdian Masyarakat The Indonesian Journal of Computer Science Jurnal Geosaintek
Martinus Edwin Tjahjadi
Institut Teknologi Nasional Malang
Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Physics Social Sciences Other

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Journal : The Indonesian Journal of Computer Science

 1 
Dampak Ukuran Sensor Kamera Dijital Dalam Kemampuan Untuk Mendeteksi Pergeseran Deformasi Struktur Tjahjadi, Martinus Edwin
The Indonesian Journal of Computer Science Vol. 13 No. 6 (2024): The Indonesian Journal of Computer Science (IJCS)
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v13i6.4385

Abstract

Digital camera sensors such as CCD (Charge Coupled Device) or CMOS (Complementary Metal Oxide Semiconductor) are semiconductor devices for converting a captured light passing through the lens into digital photos. Their size and dimension are varyied among camera’s brands and types available on the market. This article reviews whether their size differences could affect on the camera's ability to detect the smallest possible shifts in structural deformation. Two different types of sensor sizes, namely full frame type and APSC (Advanced Photo System type C) from two different camera brands are evaluated on the sensor's ability to detect deformation. Close range photogrammetry (CRP) technique is used to observe on bridge pillar structures that were suspected of experiencing vertical movement. results show that sensor differences affect the camera's ability to distinguish smallest possible deformation. The larger the camera sensor size, the more detailed the deformation or structural shift that can be discerned.
Pemodelan Simulasi Aliran Udara terhadap Bangunan 3d Berbasis CityGML dan Computational Fluid Dynamics Utami, Aprillia Rahmi; Suhari, Ketut Tomy; Ujang, Muhammad Uznir; Tjahjadi, Martinus Edwin
The Indonesian Journal of Computer Science Vol. 12 No. 6 (2023): The Indonesian Journal of Computer Science (IJCS)
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v12i6.3486

Abstract

Lingkungan di wilayah kota Malang mengalami pertumbuhan permukiman yang semakin padat serta tata kota semakin tak teratur, sehingga menyebabkan suhu menjadi panas dan warga menjadi tidak nyaman. Angin adalah pergerakan udara yang terjadi karena adanya tekanan udara dari tekanan tinggi ke tekanan rendah. Untuk mengetahui pergerakan aliran udara tersebut, pada penelitian ini dibuat suatu bentuk pemodelan simulasi aliran udara CFD dengan menggunakan Ansys dan bentuk pemodelan 3D CityGML pada LoD 2. Pembuatan simulasi aliran udara ini menggunakan data angin yang diperoleh dari BMKG dan dianalisa untuk membandingkan nilai RMSE dengan data observasi lapangan yang didapatkan dengan menggunakan 2 alat hand anemometer digital. Hasil simulasi aliran udara menunjukkan pengaruh model 3D LOD2 terhadap aliran angin berupa perubahan arah dan kecepatan.
Co-Authors Adhiatama, Wahdianaldy Agust, Fransisca Alifah Noraini Alifah Noraini Deddy Rudhistiar Dwiki Altito Priambodo F.X Ari Wibisono Fourry Handoko Fransisca Agust Fransisca Dwi Agustina I Nyoman Sudiasa Imam Zulhan Jasmani Jasmani Ketut Tomy Suhari Larasaty Ayu Parsamardhani Muhammad Zhorif Nasri Nicolas Alnando Nur Alfan Wisnu Hardiatmojo Raynier Geraldino Dadu Kerong Silvester Sari Sai Ujang, Muhammad Uznir Utami, Aprillia Rahmi Vikanisa Rahmadany Wahdianaldy Adhiatama Zulham, Imam