Article Per Year (5 Year)
p-Index From 2021 - 2026
0.408
P-Index
This Author published in this journals
All Journal Kegiatan Positif : Jurnal Hasil Karya Pengabdian Masyarakat
Rafi Maulana Al-Farizi
Politeknik Angkatan Darat
Humanities Computer Science & IT Education Health Professions Social Sciences Other

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Pengembangan Konsentrator Oksigen Berbasis Empat Bahan Filtrasi Sebagai Solusi Inovatif Alat Bantu Pernafasan Dekki Widiatmoko; Rachmat Setiawibawa; Rafi Maulana Al-Farizi; Mokhammad Syafaat; Eriski Prawira
Kegiatan Positif : Jurnal Hasil Karya Pengabdian Masyarakat Vol. 1 No. 3 (2023): September : Kegiatan Positif : Jurnal Hasil Karya Pengabdian Masyarakat
Publisher : Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/kegiatanpositif.v1i3.756

Abstract

Amidst the Covid-19 pandemic, there has been a significant increase in the demand for oxygen. More people require oxygen cylinders, yet the supply is insufficient to meet the community's needs. Oxygen Concentrators have become an essential device capable of producing pure oxygen with a purity level reaching 95% through the application of Pressure Swing Adsorption (PSA) technology. The resulting ratio produced by the concentrator is 33.4% for synthetic zeolite, 30% for silica gel, 20% for natural zeolite, and 26.7% for activated carbon.
Alat Peringatan Dini Bencana Tanah Longsor Dengan Metode Geolistrik Rachmat Setiawibawa; Dekki Widiatmoko; Rafi Maulana Al-Farizi; Eriski Prawira
Kegiatan Positif : Jurnal Hasil Karya Pengabdian Masyarakat Vol. 1 No. 3 (2023): September : Kegiatan Positif : Jurnal Hasil Karya Pengabdian Masyarakat
Publisher : Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/kegiatanpositif.v1i3.757

Abstract

Resistivity or resistivity of the soil. Earth is assumed to be a sphere that is isotropically homogeneous. With this assumption, the measured resistivity is the true resistivity and is independent of the electrode spacing. But in reality the earth consists of different layers so that the measured potential is the effect of these layers. Then the measured resistivity value is not just a single layer resistivity value, but several layers, this is especially true for wide electrode spacing.
Co-Authors Dekki Widiatmoko Eriski Prawira Mokhammad Syafaat Rachmat Setiawibawa