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INDONESIA
Indonesian Physical Review
Published by Universitas Mataram
ISSN : 26151278     EISSN : 26147904     DOI : -
Core Subject : Science, Education,
Education Physics
Indonesian Physical Review is a peer review journal which is managed and published by Physics Departement, Faculty of Mathematics and Natural Sciences, Universitas Mataram. This journal is published periodically three times a year, in January, May and September. IPR is Open Accsess for all readers and includes research developments in physics both experimentally and analytically. Focus and scope include Theoritical Physics, Computation, Material sciences, Instrumentation, Biophysics, Geophysics, and Optics.
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Articles 221 Documents
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EFFECT OF NIGELLA SATIVA EXTRACTS IN LIVER CELL OF RATTUS NORVEGICUS INDUCED BY PIROXICAM Kurniasari, Septiana
Indonesian Physical Review Vol. 4 No. 3 (2021)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v4i3.95

Abstract

Piroxicam has the potential to cause side effects, especially in the liver, so that it can causes cell damage and impair the function and work of the liver organs. One way to minimize liver cell damage is by giving black cumin (Nigella sativa). This study aims to analyze the effect of black cumin (Nigella sativa) extract on the level of liver cell damage in rats (Rattus norvegicus) induced by Piroxicam. This study used 80 male rats and divided into 3 groups, namely negative control (K-), Piroxicam non-extract (P-) and Piroxicam plus extract (P +). Black cumin extract is given orally at a dose of 2 gr/kgBW; 3 gr/kgBW; 4 gr/kgBW; 5 gr/kgBW and 6 gr/kgBW, while the Piroxicam dosage given is 1 g/kgBW and 3 g/kgBW. The liver cell damage was done by observing the microscopic image. The results showed that the more doses of Piroxicam were given, the higher the level of cell damage. Along with increasing the dose of black cumin extract, the cell damage is reduced.
DETECTION OF DISPLACEMENT USING GLASS OPTICAL FIBER SENSOR WITH VARIOUS CONFIGURATION Lebang, Annamaintin Kobong; Arifin, A; Abdullah, Bualkar
Indonesian Physical Review Vol. 4 No. 3 (2021)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v4i3.124

Abstract

The research has measured the landslide using a displacement sensor based on Glass Optical Fiber (GOF) and Optical Time Domain Reflectometer (OTDR). The sensor manufacture process consists of various materials, structures, configurations, diameters, and directions. The sensor is made using GOF with a single-mode structure and single mode-multimode-Singlemode (SMS) structure. Each system is given a variety of configurations, namely gamma, bowknot, and three loops configuration. Each arrangement is provided a variation of the indentation diameter in three displacement directions. The test results will be read as the power loss on the OTDR in dB units. The results obtained were then compared between two materials, two structures, and directions. Displacement resulting landslides and changes to the sensor, causing power losses, and affecting the characteristics of each sensor. We found the best measurement results with the sensitivity value of 0.241 dB/mm and the resolution value of 0.004 mm. The displacement sensor has been made for measuring landslide in the laboratory-scale simulation based on GOF and OTDR with easier fabrication, easy operation, high sensitivity, better resolution and can be connected to a computer
EARTHQUAKE RECURRENCE INTERVAL BASED ON SEISMIC MOMENT Massinai, Muhammad Fawzy Ismullah; Wijaya, Arif; Jamaluddin, Jamaluddin; Massinai, Muhammad Altin; Umar, Emi Prasetyawati; Minarti, Minarti
Indonesian Physical Review Vol. 4 No. 3 (2021)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v4i3.120

Abstract

Indonesia is a country with high earthquake potential. This potential has been realized by its stakeholders and other parties. Various methods from many researchers from the fields of geophysics, geology, seismology, geodesy, geotechnical engineering, and others have been discussed to arrange earthquake mitigation. However, the discussions are unable to fit all earthquake mitigations across the country because they are still limited to specific characteristics of each fault among thousands of faults in Indonesia. Seismic moment is a parameter that provides information on the energy released when an earthquake occurs. This parameter, in any given scale, can provide information about the earthquake recurrence interval. The earthquake recurrence interval referred to here means that during a certain time period, the area under study has the possibility of experiencing an identical earthquake or with a smaller magnitude. This study tries to offer and test the method of calculating earthquake recurrence interval based on seismic moments. The method tested in several case studies of earthquakes in East Kalimantan has acceptable results. The method in this research has advantages value and can be alternative method in earthquake disaster mitigation.
IDENTIFICATION OF HORST AND GRABEN STRUCTURAL PATTERNS USING GRAVITY AND SECOND VERTICAL DERIVATIVE (SVD) METHODS IN THE LUBUKSIKAPING AREA OF WEST SUMATERA Zulkaromi, Muhammad; Setiadi, Imam; Suharno, Suharno; Mulyatno, Bagus Sapto; Haerudin, Nandi; Ferucha, Istifani
Indonesian Physical Review Vol. 4 No. 3 (2021)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v4i3.118

Abstract

The Lubuksikaping area is located between the main fault branching of the Sumateran Fault so it can be seen that there are many quite complex structures. This research was conducted to determine the structure pattern of the high (horst) and low (graben) that formed in the sub-surface of the Lubuksikaping area, West Sumatera. This research uses gravity data which will then be carried out by spectral analysis, upward continuation, separation of regional and residual anomalies, and Second Vertical Derivative (SVD) analysis. Furthermore, 2D forward modeling is carried out to determine the correlation between the 2D subsurface forward modeling and the resulting SVD graph. Based on the analysis of the regional anomaly map, it can be seen that the measured low anomaly is due to the area in the form of a structural valley formed due to the activity of the Sumatera Fault, while the high is thought to be a structural hill (horst) that forms an elongated mountain range and separated by graben. In addition, based on the analysis of the residual anomaly map, it can be seen that the low anomaly indicates the presence of a depositor (graben), whereas, the high anomaly is indicated as the presence of rocks with high-density contrast values. and is interpreted as a horst structure. Based on the analysis of the horst and graben patterns in the residual Bouguer anomaly, it can be seen that there is an elevation zone (horst) that are northwest and northeast on the residual map and it is known that there are 3 graben structures in Lubuksikaping, namely Panyabungan Graben, Rao Graben and Sumpur Graben with relative northwest-southeast direction. The 2D models of paths A-A' and B-B' show faults that are located relatively the same as the SVD graph obtained from the residual SVD anomaly map.
SINTESIS DAN KARAKTERISASI KARBON AKTIF DARI PREKURSOR BATUBARA Septiana, Atut Reni; Teluma, Yosef Christian Riki; Rifani, Agus
Indonesian Physical Review Vol. 5 No. 1 (2022)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v5i1.121

Abstract

In this work, coal derived activated carbon has been synthesized successfully. The activated carbon was prepared by soaking coal powder in KOH solution and continued by activation at varied temperature, i.e. 400, 500, and 600ËšC. The performance of the activated carbon was examined by X-Ray Diffraction (XRD), Fourier Transform Infrared spectroscopy (FTIR), moisture content, and iodine adsorption. The XRD data analysis results indicated the amorphous structure of carbon and revealed the more amorphous carbon as the higher of the activation temperature. The characterization using FTIR exhibited the presence of functional groups such as hydroxyl, carboxylic acid, ketone, amino, and so on. The lowest moisture content was achieved by activated carbon which was activated at 400ËšC, namely 3.77%, while the moisture content for activation temperature at 500 and 600ËšC were 5.3 and 7.74 % respectively. Moreover, the adsorption of iodine increased by the increase of the activation temperature due to high pore surfaces of the activated carbon
THE MEASUREMENT OF ENVIRONMENTAL RADIATION EXPOSURE AROUND THE LINAC RADIOTHERAPY BUNKER Kurniasari, Septiana; Hentihu, Fatimah K; Anto, Alfian K; Prasetyo, Henry
Indonesian Physical Review Vol. 5 No. 1 (2022)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v5i1.129

Abstract

Radiotherapy is cancer therapy using radiation. One of the tools used for radiotherapy is the Linac. Using Linac also can have a detrimental effect on radiation workers, patients, and the public. The reaction can cause activation around the room to become radioactive. Therefore, radiation protection is needed. This research aimed to measure environmental radiation exposure as a radiation protection effort around the Linac bunker. This research uses a quantitative method by collecting data directly on the area around the Linac bunker, with a distance of ± 30 cm from the bunker wall, using the STEP OD-02 Detector. The average Linac operation is 2000 hours/year, while the safe dose limit used is 1/2 dose Limit from Nuclear Power Monitoring Agency. Based on measurements of environmental radiation exposure, there are eight areas classified as safe and four other regions experiencing radiation leakage, including Doors with a radiation exposure difference of 0.078 Sv/hour; West Field (0.074 Sv/hour); TPS Room (0.302 Sv/hour); and Meeting Rooms (0.199 Sv/hour), but still within the safe limit of radiation dose. The environmental radiation exposure around the Linac Radiotherapy bunker is safe.
REVIEW OF CHARACTERISTICS AND PROPERTIES OF FE2O3/SIO2 AS WATER POLLUTION PREVENTION Soerya, Balada; Edianta, Jaya; Lailaturofi'ah, Siti; Ningtyas, Aniendita; Arsyad, Fitri Suryani; Setiabudidaya, Dedi; Sailah, Siti
Indonesian Physical Review Vol. 5 No. 1 (2022)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v5i1.131

Abstract

The existence of water on earth is very abundant and has a vital role in the source of life for every living creature. In managing water resources, pollution is one of the issues world researchers face. This article reviews the characteristics and methods of synthesizing Fe2O3 and SiO2 materials to prevent water pollution. The strategies administrated antecedently square measure vapor deposition, microemulsion, solvothermal, coprecipitation, sol-gel, and hydrothermal. The formation of fine quality nanoparticles with controlled size associate degreed size distribution square measure typically achieved by selecting an applicable solvent mixture and varied parameters like temperature, pressure, and time interval.
INTERNET OF MEDICAL THINGS (IoMT)-BASED HEART RATE AND BODY TEMPERATURE MONITORING SYSTEM Laila, Ida; Arifin, A; Armynah, Bidayatul
Indonesian Physical Review Vol. 5 No. 1 (2022)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v5i1.134

Abstract

Research has been carried out on a heart rate and body temperature monitoring system based on the Internet of Medical Things (IoMT). This study aims to create a system for monitoring heart rate and body temperature remotely in real-time with measurement results displayed on a web server. This research includes several methods such as developing research concepts based on literature studies, system design consisting of hardware and software design, sensor calibration, web server creation, system testing, and direct data retrieval. The hardware manufacturing stage uses several components such as a pulse heart sensor to detect heart rate, DS18B20 sensor to detect body temperature, Arduino Uno microcontroller, Xbee end device, Xbee coordinator, and raspberry pi as a server computer. Then for the use of software on this system, it consists of Arduino Integrated Development Environment (IDE) to run Arduino Uno hardware, XCTU to provide configuration on Xbee, Python to run Raspberry Pi and Django as a framework for building web servers and MySQL as data storage center measurement results. Heart rate monitoring is done by placing a sensor on one of the fingers, and body temperature is done by placing the sensor in the axilla. The output from the sensor in the form of analog data is converted by the Arduino Uno microcontroller into digital data and then sent to the Raspberry Pi module via Xbee. The raspberry pi has processed data is then stored in the database and then displayed on the webserver. The sensor calibration results show that the pulse heart sensor's error rate is 0.41%, and the DS18B20 temperature sensor is 1.09%. After calibration of the sensor, data was collected on the three respondents' heart rate and body temperature. The measurement results show that the system can store each respondent's heart rate and body temperature data in the database and display the measurement results on the webserver in real-time. Based on these results indicate that the system that has been made can work well.
QUALITY CONTROL OF MULTI-SLICE CT-SCAN AIRCRAFT USING PHANTOM CHART MODEL 610 AT MAKASSAR HAJI HOSPITAL Fira, Nurul Magfirawati; Dewang, Syamsir; Astuty, Sri Dewi; Muliadin, Muliadin
Indonesian Physical Review Vol. 5 No. 1 (2022)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v5i1.136

Abstract

This study aims to determine and analyze the quality control phantom chart of a CT-scan plane from the CT number's accuracy, the CT number's uniformity, and the uniformity of noise against the phantom. The AAPM CT Performance Phantom with the model 610 offers a single object to measure several different CT performance parameters. The Phantom design is based on the guidelines presented in the AAPM. From the measurement results, the accuracy of the CT number is still following the tolerance standard; namely, the value of passing the test ± 4 for the accuracy of the CT number, and the value of passing the test 2 is the uniformity of the CT number. Based on the Standard Regulations of the Head of the Nuclear Energy Supervisory Agency, stating that the value of accuracy and uniformity of the CT number from the CT scan image obtained in research conducted on a multi-slice CT scan plane at the Radiology Installation of the Makassar Haji Regional General Hospital shows the value of passing the test or still within PERKA BAPETEN standard.
THE VALUE OF VISCOSITY COEFFICIENT OF COOKING OIL RESULTED BY PURIFICATION BASED ON ACTIVE CHARCOAL TEMPERATURE WITH THE FALLING BALL METHOD Rachmawati, Dewi Oktofa; Suswandi, Iwan; Risha, Nurfa
Indonesian Physical Review Vol. 5 No. 1 (2022)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v5i1.140

Abstract

A change in viscosity indicates the damage to cooking oil. The value of the viscosity coefficient indicates the level of viscosity. This value describes the drag caused by friction between the cooking oil molecules to block the flow. The adhesive property of used cooking oil with a high viscosity value is that it is easy to stick to foodstuffs processed with this oil. Used cooking oil is cooking oil with a high viscosity coefficient value. This oil contains free fatty acids that are harmful to the body. Reuse of used cooking oil for frying foodstuffs is not recommended. Purifying used cooking oil is one way to make cooking oil safe to consume again. The surface adsorption capacity of activated charcoal is increased by heating. Activated charcoal activation temperatures are 27oC, 40oC, 50oC, 70oC, and 90oC.The value of the viscosity coefficient of the purified cooking oil is interesting to study for the activation temperature of the activated charcoal used. The falling ball method was chosen to determine the value of the viscosity coefficient. This method measured the time the ball fell in the oil. Data were analyzed quantitatively descriptively and presented in graphical form. The results show that the value of the viscosity coefficient of the purified cooking oil decreases with the increase in the activated charcoal temperature. The value of the viscosity coefficient of cooking oil as a result of purification using activated charcoal at  90oC is (0.854 ±0.004)  Pa. s

Page 6 of 23 | Total Record : 221

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