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Journal of Experimental and Applied Physics
Published by Universitas Negeri Padang
ISSN : 29880378     EISSN : 29879256     DOI : -
Core Subject : Science, Engineering,
Control & Systems Engineering Electrical & Electronics Engineering Materials Science & Nanotechnology Physics
Journal of Experimental and Applied Physics: an international peer-reviewed open-access journal dedicated to interchange for the results of high-quality research in all aspects of theoretical physics, applied physics, electronics and instrumentation, material physics, biophyiscs, geophysics, high energy physics and computational physics.
Arjuna Subject : Fisika dan Astronomi - Instrumentasi
Articles 5 Documents
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Search results for , issue "Vol 3 No 2 (2025): July Edition" : 5 Documents clear
Monitoring Tool for Infusion Administration in Patients Using NodeMCU ESP32 Fernando, Erik
Journal of Experimental and Applied Physics Vol 3 No 2 (2025): July Edition
Publisher : Department of Physics, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jeap.v3i2.100

Abstract

The use of appropriate technology in today's era is very necessary, especially in the medical world, one of which is in the administration of IV fluids. Infusion (intravenous therapy) is a medical action to provide fluids in the form of drugs and nutrients through the blood vessels to patients precisely and consistently in doses according to the patient's needs. The infusion equipment currently used is still manual by medical personnel or nurses in installing and monitoring patients routinely. In the use of this infusion, problems will arise if the use of the infusion is not monitored properly so that there will be a run out of IV fluid or an excess dose of IV which can endanger the patient. Due to changes in the drip rate, fluids that are less or more than what is needed by the patient can cause suboptimal therapy, dehydration or metabolic disorders. Previous research has made an automatic IV monitoring tool, but IV monitoring cannot be done remotely, as well as wasteful use of microcontrollers. From the problems that arise, a monitoring system for IV administration to hospital patients is designed using the NodeMCU ESP32. This tool starts from reading the number of IV fluid drops by the Photoelectric LM393 sensor, the data of which is then processed by the NodeMCU ESP32. The data is compared to a predetermined configuration, and if the number of drops exceeds a certain limit, a notification will be sent to the blynk application. In addition, this tool also sends data on the number of drops to the blynk application for remote monitoring. The results of the tool test show that the tool has a high level of accuracy with an average low error percentage of 1.75%, and is able to provide real-time data for monitoring and controlling the speed of infusion drops according to patient needs.
Using Sensors with Internet of Things for Landslide Detection System: A Systematic Literature Review Fitri, Sarah; Asrizal, Asrizal
Journal of Experimental and Applied Physics Vol 3 No 2 (2025): July Edition
Publisher : Department of Physics, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jeap.v3i2.103

Abstract

Landslides are among the most common natural disasters in regions with high rainfall and unstable geological conditions. To improve the effectiveness of mitigating this disaster, various Internet of Things (IoT)-based early detection systems have been developed. This research uses Systematic Literature Review (SLR) approach to analyze various sensor technologies and IoT in landslide monitoring system. Based on the analysis, it was found that soil moisture sensor, accelerometer, and piezometer are the most commonly used technologies in the monitoring system. Soil moisture sensors measure the moisture content in the soil, accelerometers detect unstable soil movement, while piezometers measure soil pore pressure. In addition, communication technologies such as LoRa-WAN and Narrowband-IoT (NB-IoT) enable real-time data transmission with low power consumption and wide coverage. The results show that the use of IoT technology can improve the accuracy of landslide early detection. However, there are still some major challenges in implementing this system, mainly related to the limited network infrastructure in remote areas and the relatively high cost. Therefore, this research recommends the development of a more efficient early detection system, adaptive to extreme environmental conditions, and considering integration with artificial intelligence technology to improve prediction and response to potential landslides. Thus, IoT-based detection systems can contribute significantly to landslide mitigation and risk reduction efforts
Development of Proximity Sensor-Based Mathematical Pendulum Experiment Modeling Tool for Video Tracker Analysis Yosi, Yosi; Asrizal, Asrizal
Journal of Experimental and Applied Physics Vol 3 No 2 (2025): July Edition
Publisher : Department of Physics, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jeap.v3i2.104

Abstract

Physics has an important role in the development of science and technology today. One of the interesting motion phenomena in physics is simple harmonic motion on a mathematical pendulum. Physical phenomena can be observed through experiments using research instruments. The observation shows that the data of the mathematical pendulum experiment is only limited to the oscillation time and the number of swings. In addition, the instruments used are still manual. One solution to overcome these problems is to use a proximity sensor-based mathematical pendulum experiment modeling tool and video analysis using a tracker. The purpose of this research is to determine the accuracy and precision of the mathematical pendulum modeling tool experiment, knowing the effect of changes in rope length on the period and frequency of the mathematical pendulum modeling tool. This research is a type of design and development research (Research and Development). Data collection was carried out with two events, namely direct and indirect measurements. Direct measurements are made by varying the length of the rope on the mathematical pendulum experiment modeling tool. Indirect measurements are made to determine the accuracy and precision of the proximity sensor-based mathematical pendulum modeling tool. The results of the data analysis obtained are displayed in the form of tables and graphs. Based on the data analysis, three research results can be stated. First, video analysis using a tracker obtained a sinusoidal graph. Second, the average accuracy and precision of the modeling tool are period 99.50% and 96.66%, frequency 99.68% and 96.47%, and acceleration of gravity 99.20% and 95.50%. Third, the longer the rope used, the greater the period obtained, which is inversely proportional to the smaller frequency.
Optimation Of Variation Of Massive And Contact Time Using Zeolit On The Reduction Of Iron Metal (Fe) On Dug Well Water In Air Molek Indragiri Hulu Azmi, Angel
Journal of Experimental and Applied Physics Vol 3 No 2 (2025): July Edition
Publisher : Department of Physics, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jeap.v3i2.107

Abstract

The limited capacity of the Regional Drinking Water Company (PDAM) to provide clean water has led many communities to rely on groundwater sources, particularly dug wells, for daily use. However, such water sources are prone to contamination by heavy metals. A preliminary analysis using Atomic Absorption Spectrophotometry (AAS) of a dug well in Air Molek, Indragiri Hulu Regency, revealed an iron (Fe) concentration of 1.029 mg/L, exceeding the acceptable limit for clean water. Prolonged use of water with high Fe content poses significant health risks, including gastrointestinal and skin disorders. This study aims to assess the effectiveness of zeolite synthesized from rice husk ash and coal ash in reducing Fe concentrations in well water. An experimental method was employed, in which 1 liter of contaminated water was treated with varying zeolite dosages (1 g, 2 g, and 3 g) and contact times (30, 60, 90, and 120 minutes). The treated water samples were analyzed using AAS to determine the remaining Fe levels. The results demonstrated that the optimal Fe removal was achieved with a zeolite dosage of 2 g/L and a contact time of 60 minutes, indicating the potential of modified zeolite as an effective adsorbent for improving groundwater quality.
Hydrological Analysis for Spatial Plan of Hamparan Rawang District to support Resilient Urban Development Gustiabudi, Rahmat
Journal of Experimental and Applied Physics Vol 3 No 2 (2025): July Edition
Publisher : Department of Physics, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jeap.v3i2.118

Abstract

Hamparan Rawang District plays a crucial role in the overall spatial planning and development strategy of Sungai Penuh City. However, Hamparan Rawang District encounters significant environmental challenges that threaten its natural resources and ecosystems, biodiversity, and overall sustainable development and resilience. Hydrological analysis and spatial planning of Hamparan Rawang District is conducted for disaster mitigation and resilient urban development strategies. The descriptive analysis method is carried out by direct observation of the characteristics and potential problems in Hamparan Rawang District. During the rainy season, several places in the watershed in the Hamparan Rawang District are prone to flooding. In 2016, the area of ​​flood inundation in Hamparan Rawang District reached 11 percent of the area of ​​Hamparan Rawang District. The area of ​​flood inundation increased in 2020 to 18.58 percent of the area. In general, drainage channels in Hamparan Rawang District have reached almost the entire city area.. However, its maintenance management has not been optimal, this is evidenced by the overflow of water onto the road surface when it rains.

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