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Journal : Progressive Physics Journal

Analisis Getaran Whole Body pada Supir Angkutan Umum di Samarinda Puspa Syadariah; Devina Rayzy Perwitasari Sutaji Putri; Pratiwi Sri Wardani; Mislan Mislan; Adrianus Inu Natalisanto
Progressive Physics Journal Vol 3 No 2 (2022): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (391.81 KB) | DOI: 10.30872/ppj.v3i2.915

Abstract

Whole body vibration is vibration that propagates throughout the worker's body from vibration sources in the form of machines, vehicles, and so on. In this paper it is reported the results of research to determine the total value of vibration acceleration on several drivers of the public transport in Samarinda and to analyze the comfort level of the drivers receiving the vibration on their bodies. The components of the vibration acceleration were measured by using a vibration meter type of Svantex 106. The comfort level of the driver in receiving the vibration was assosiated with the scale of comfortable level set by the Ministry of Manpower of the Republic of Indonesia by decree number PER.13/MEN/X/2011. The research found that the average of the total value of vibration acceleration received by the drivers in A, B, and C transportations were 0.3877 m/s2 , 0.7056 m/s2 dan 0.6596 m/s2 , respectively. In Samarinda the drivers in B and C transportations were more uncomfortable to receive the whole body vibration than the drivers in C transportation.
Rancang Bangun Sistem Monitoring Suhu dan Kelembaban Tanah pada Media Tanam Berbasis Mikrokontroler ATMEGA328P Putri Islam Nur Hikmah; Mislan Mislan; Rahmiati Munir
Progressive Physics Journal Vol 2 No 1 (2021): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (477.406 KB) | DOI: 10.30872/ppj.v2i1.752

Abstract

Information of temperature and humidity in planting media is very important for cultivation activities and the process of plant growth, where the real time process is very useful to determine the watering process on planting media. The purpose of the research that has been done was to design a monitoring system for soil temperature and humidity on the planting media and to make an automatic plant watering sprinkler by detecting soil moisture. A design for monitoring soil temperature and humidity on planting media has been made with a microcontroller. This instrument works when the pump detects soil with a range ​​from 0-3 cm/Hg for dry, 3.1-6 cm/Hg for moist and 6-7.9 cm/Hg for wet. When the soil is dry, the pump will work by removing water and stop when the soil is damp or wet.