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All Journal Jurnal Fisika FLUX Journal of Physics and Its Applications Progressive Physics Journal
Putri, Devina Rayzy Perwitasari Sutaji
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Astronomy Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Health Professions Materials Science & Nanotechnology Physics

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Journal : Progressive Physics Journal

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Evaluasi Sistem Proteksi Sambaran Petir pada Gedung G dan Gedung Science Learning Center Fakultas Matematika dan Ilmu Pengetahuan Alam Fadhil, Achmad Reyhan; Syahrir, Syahrir; Putri, Devina Rayzy Perwitasari Sutaji
Progressive Physics Journal Vol 4 No 2 (2023): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/ppj.v4i2.1042

Abstract

As a building that had been used all day G building and Science Learning Center has an active lightning protector system that can arrest electrons on clouds. Therefore, it necessary to evaluate and measure on lightning protector system that installed on both building. Main purpose of this research is to know the efficieny of the lightning protector systems that installed on G building and Science Learning Center, and also to know equivalent area of the lightning protector systems that installed on G building and Science Learning Center. This reasearch was done by evaluate the system based on risk assesment to know that the lightning protector system is needed or not to be installed on the building and then to calculate the equivalent area from lightning protector system to know the effiency of it, and lastly to measuring resistance of the building it needs Earth Resistance Tester (ERT) so it suit the Threshold Value. The result of this research shows that the lightning protector system on G building has the III efficiency level in value is 85% effiecient and equivalent area in range of 30,559 km2, meanwhile on Science Learning Center building shows that lightning protector system has the IV effieciency level, in value is 80% efficient and equivalent area in range of 20,658 km2.
Penilaian Tingkat Risiko Postur Kerja Menggunakan Metode REBA dan Biomekanika Pada Aktivitas Mengangkat Beban Jordan, Aldi Rizki; Wardani, Pratiwi Sri; Subagiada, Kadek; Putri, Devina Rayzy Perwitasari Sutaji; Natalisanto, Adrianus Inu
Progressive Physics Journal Vol 4 No 1 (2023): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/ppj.v4i1.1021

Abstract

The activity of lifting weights has many risks that can lead to complaints and work accidents such as mistakes in lifting excessive loads, overly bent postures, and other complaints that result in uncomfortable working conditions. This research was conducted to determine the risk level of work posture using the REBA method and biomechanics in lifting weights with different lifting variables. The research were took documentation data, angle and distance measurements by using the Kinovea application, and the data analyzed by using the REBA Assessment Worksheet and biomechanical equations. Based on the results obtained, the activity of lifting burdens on workers from the aspect of the REBA method mostly has a high level of risk category and only 1 worker has a moderate level of risk category. Meanwhile, from the biomechanics aspect, most of them have a risk level in the careful category, 1 worker has a risk level in the safe category, and 1 worker who has lifted a load of 50 kg has a risk level in the dangerous category.
Pengolahan Citra Digital EKG Rumah Sakit Tk.IV Samarinda Setyowati, Anggriya Feby; Wardani, Pratiwi Sri; Putri, Erlinda Ratnasari; Putri, Devina Rayzy Perwitasari Sutaji
Progressive Physics Journal Vol. 5 No. 1 (2024): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/ppj.v5i1.1037

Abstract

In the hospital itself, especially in the MCU Poly Radiology Installation, it is a unit that performs services such as Medical Check Up, making health certificates, and carrying out routine checks at an institution. ECG examination is one of the services most frequently performed routinely by patients. Examinations carried out include medical check-ups, monitoring of long-term therapy, patient to assessment before surgery, individual screening for high-risk jobs, examinations before participating in sporting events, and overall examinations as a condition of employment. This study carried out the process of withdrawing information or object descriptions or identifying objects contained in images by compressing or reducing image data. By using EKG data from TK.IV Samarinda Hospital by carrying out processing stages such as converting analog data to digital, cropping, and applying filters to EKG images. After the filter is applied to the image, it is found that after 5 types of image processing (RGB Image, Grayscale Image, Binary Image, Thresholding Image, and Edge Detection Image) on the results of the ECG signal it can be concluded that the processed signal retains the features of the existing signal and information. . Of the five types of processing methods, the clearest result is conversion to Edge Detection imagery.
Co-Authors Adrianus Inu Natalisanto Ahmad Zarkasi Fadhil, Achmad Reyhan Hemelia, Junita Intifadhah, Sahara Hamas Jordan, Aldi Rizki Kadek Subagiada, Kadek Missinychrista, Ronel Arida Payon, Fransiska Lipa Setyowati, Anggriya Feby Syahrir Syahrir Wardani, Pratiwi Sri