cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Indonesian Physical Review
Contact Email
ipr.journal@unram.ac.id
Phone
-
Journal Mail Official
lilyangraini@unram.ac.id
Editorial Address
-
Location
Kota mataram,
Nusa tenggara barat
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.
Arjuna Subject : -
Articles 221 Documents
 9   10   11   12   13 
APPLICATION OF VERTICAL ELECTRICAL SOUNDING (VES) IN GROUNDWATER AQUIFER ESTIMATION IN THE "SPR" AREA, WONOGIRI DISTRICT, WONOGIRI REGENCY, CENTRAL JAVA Sepriyenra, Revaldo; Yatini, Y; Dewi, Ira Kusuma
Indonesian Physical Review Vol. 7 No. 3 (2024)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v7i3.288

Abstract

“SPR” area in Wonokarto Village, Wonogiri Regency, Central Java Province, is one area with serious groundwater problems. Regional conditions and significant population growth cause the need for clean water to increase. Efforts to obtain groundwater reserves continue to be made to overcome this problem. Identification of aquifers is carried out using resistivity methods. The research aims to determine the presence and types of an aquifer based on resistivity methods. Using the Schlumberger configuration, data was acquired at ten Vertical Electrical Sounding (VES) points. Results of the research show that in this region, tufa rocks form an aquifer layer in the Quarter Volcan Lava (Qvl) formation, with resistivity ranging from 14.9 to 29.8 Ωm. The “SPR” area has three aquifer types, i.e., surface, shallow, and deep, with (1.5–5) meters, (10.5–25) meters, and (30–129) meters in depth, respectively.
HYPOCENTER DISTRIBUTION ANALYSIS OF SINABUNG VOLCANO ERUPTION IN 2021 USING GEIGER'S WITH ADAPTIVE DAMPING (GAD) METHOD Arisalwadi, Meidi; Rahmania, Rahmania; Hamidah, Hamidah; Sastrawan, Febrian Dedi; Basuki, Ahmad
Indonesian Physical Review Vol. 7 No. 2 (2024)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v7i2.293

Abstract

Sinabung Volcano is located in the Karo Highlands, Karo Regency, North Sumatra, Indonesia, with a peak of 2460 meters above sea level. This volcano experienced an increase in volcanic activity in the April-October 2021 period, so it is necessary to analyse volcanic seismicity to determine the hypocenter distribution of the volcano. This study aims to determine the hypocenter distribution and classification of volcanic earthquake types based on seismogram recording data of Sinabung Volcano at four stations, namely LKW, BGR, MDD and SGR stations. The method used in this research is Geiger's method with adaptive damping (GAD) to determine the distribution of hypocenters. The results showed that the hypocenter distribution gathered below the crater centre with depths from 0.172 km to 7.139 km. The determination of the hypocenter distribution of volcanic earthquakes is expected to provide information on the depth of the earthquake to determine the movement of magma and the characteristics of events that occur during the pre-eruption process of Sinabung Volcano so that this data can be used for mitigation decision making when there is an increase in the activity of Sinabung Volcano.
SYNTHESIS AND CHARACTERIZATION OF MAGNETITE FE3O4 NANOPARTICLES FROM NATURAL IRON SAND in GELAR RIVER Mardana, Ida Bagus Putu; Nur Lutfiyah, Yoni; Yasa, Putu; Agung Widiantara, Gusti Kade
Indonesian Physical Review Vol. 7 No. 1 (2024)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v7i1.296

Abstract

Fe3O4 nanoparticles made from the natural iron sands of the Gelar River have been successfully synthesized using the coprecipitation method. Test the content of Fe elements in pure iron sand and characterize them using XRF after separation. Fe3O4 nanoparticle characterization uses XRD to determine the sample's lattice parameters and crystal size. The nanoparticles' morphology, structure, particle shape, and elemental content were characterized using SEM-E DX. Magnetic properties and magnetic saturation values are characterized using VSM. XRF yield on iron sand before separation contains Fe 59.46%. After separation, the Fe content rose to 84.72%. The synthesis results obtained brownish-black Fe3O4 nanoparticle powder that permanent magnets can attract. Based on the XRD results, the crystal structure formed is cubic inverse spinel with crystal lattice  Å with a particle size of 14.8 nm. The SEM-EDX results show the morphology of spherical nanoparticles with multiple agglomerations. Particle size is 40 nm. The EDX spectrum confirmed the formation of Fe3O4 nanoparticles in the presence of Fe (51.79%) and O (25.68%). The VSM results show that Fe3O4 samples have ferromagnetic properties with saturation magnetization (MS) = 27.36 emu/g, remanent magnetization (Mr) = -0.01 emu/g, and coercivity field (Hc) = 0.01 T.
STUDY OF SOIL STRATIFICATION IN LANDSLIDE AREAS ON BANTUAS ROAD USING THE RESISTIVITY GEOELECTRIC METHOD Haryono, Arif; Supriyanto, Supriyanto; Djayus, Djayus; Mislan, Mislan; Lepong, Piter; Abbas, Asri Yana Pratama
Indonesian Physical Review Vol. 7 No. 1 (2024)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v7i1.297

Abstract

A landslide is a natural disaster that often occurs in the Palaran sub-district, Samarinda, East Kalimantan. This sub-district with an area of ​​221.29 km2 is considered strategic as a buffer area for the National Capital City (IKN). Construction of toll roads, ports, factories, and housing has begun to be carried out here. However, in Palaran there are still many roads damaged due to landslides, one of which is Bantuas Road. To study soil stratification on the Bantuas Road section, research has been carried out using the dipole-dipole configuration of the resistivity geoelectric method. The data acquisition process was carried out at two locations, namely at the first landslide (STA 7+150) and the second landslide (STA 9+450), with each location consisting of three lines. The data processing uses Res2Dinv software to produce a two-dimensional model. Based on the resulting model, it is known that the landslide area at STA 7+150 is at a distance of 48 to 96 meters with the slip area at a depth of around 11 to 12 meters. Meanwhile, at STA 9+450, the landslide area occurred at a distance of 48 to 80 meters with the slip area at a depth of 8 to 10 meters. The slip area in the first landslide is interpreted to have occurred at the contact area between unconsolidated material and dense sand, while in the second landslide, it occurred at the contact area between weak silty sand and dense sandy clay.
THE EFFECT OF BARIUM SUBSTITUTION WITH COMBINATIONS OF RARE EARTH ON PERMANENT MAGNETIC SURFACE MORPHOLOGY BASED ON BARIUM HEXAFERRITE Adnyana, I Gusti Agung Putra; Suarbawa, Komang Ngurah; Nurmalasari, Ni Putu Yuni; Adi, Wisnu Ari
Indonesian Physical Review Vol. 7 No. 2 (2024)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v7i2.300

Abstract

The development of hard magnets today is progressing very rapidly. Developing hard magnets based on rare earth metals becomes a severe problem when the raw materials are not readily available. The chosen solution is to replace oxide-based permanent magnets with small amounts of rare earth metals substituted to improve their magnetic properties. This study synthesized a permanent magnet oxide based on barium hexaferrite doped with lanthanum and cerium atoms. In the synthesis of this material, a mechanical wet milling technique is used to obtain a single-phase permanent magnetic Ba1-β-γLaβCeγFe12O19 system with composition (β = 0 - 0.5 and γ = 0 - 0.1). The precursors are weighted according to their stoichiometric composition. Each mixed composition was milled by high energy milling (PW 1000 in the mixer/mill) at a milling speed of 1000 rpm using steel balls with an average diameter of 12 mm. Grinding conditions included a ball-to-powder weight ratio of 2:1, milling time 5 hours, then compacted with 7000 Psi pressure and sintered at 1200oC for 2 hours. The surface morphology and microstructure of the resulting sample particles were observed using scanning electron microscopy (SEM) with the SEM JEOL JED 305 brand. The characterization results show that the particles are hexagonally homogeneous in shape with particle sizes in the range of 1000-2000 nm for β = 0 and γ = 0 (without doping). In general, the four samples with varying concentrations of doping ions La3+ and Ce4+ showed homogeneous hexagonal structures but smaller particle sizes than pure barium hexaferrite. The sample particle sizes ranged from 500-1000 nm for β = 0.02 and 300-1000 nm for β = 0.04.
OPTIMIZING CIGS SOLAR CELL PERFORMANCE: THE IMPACT OF COUNTER ELECTRODE ON ELECTRODEPOSITION METHODS Rahmawati, Hilda; Ismail, Nurmalasari
Indonesian Physical Review Vol. 7 No. 2 (2024)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v7i2.301

Abstract

Copper Indium Gallium Selenium (CIGS) is a type of solar cell with great potential to be developed to meet increasing energy needs. Electrodeposition is the preferred technique for fabricating CIGS solar cells because it is simple, does not require vacuum equipment, and is low-cost. One factor influencing electrodeposition is the counter electrode, so in this research, CIGS will be fabricated using platinum wire and platinum plate as the counter electrode. Based on the XRD results of CIGS oriented at (112), (211), (220), and (312), the UV-Vis results show that the resulting CIGS has an absorbance peak of 390 nm. CIGS solar cell performance results based on photoresponse produce 0.99 s and 0.45 s when using platinum wire and plate consecutively. Both platinum wire and plate as counter electrodes in electrodeposition can produce CIGS solar cells. However, CIGS with a platinum plate as a counter electrode produces more optimal CIGS performance.
DETECTION AND IDENTIFICATION OF SLIDING PLANES USING GEOELECTRIC METHODS AT BENGKAUNG TOURISM AREA, LOMBOK ISLAND Pratama, Muhammad Andika; Minardi, Suhayat; Marzuki, Marzuki
Indonesian Physical Review Vol. 7 No. 3 (2024)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v7i3.302

Abstract

Landslides are among the most common problems on natural and man-made slopes. Factors that cause landslides are the presence of a sliding plane, steep slope, and the type of rock, while the triggers of landslides are vibration, human activity, and water infiltration into the slope. The sliding plane itself is an impermeable and slippery plane that is usually in the form of a clay layer so that it becomes the foundation for the movement of soil masses. This study aims to determine the type of rock and the depth of the potential landslide slide plane in Bengkaung Village. The data used in this study is data obtained by taking direct measurements in the field, namely by injecting electric current into the earth using geoelectric method tools. Data processing, namely by using the Res2dinv application. The results of this study are the types of rocks in the study area in the form of sandstone, clay, silt, limestone, breccia, and lava, and the depth of the sliding plane is between 2.8-5 meters
GEOLOGICAL EVALUATION OF STRUCTURAL DEFORMATION OF THE TAWAR FORMATION, ACEH TENGAH, INDONESIA Widiyani, Arrival Fadila; Gunawan, M. Ridho Gifaro; Tanzir, M.; Adhari, Muhammad Ridha
Indonesian Physical Review Vol. 7 No. 2 (2024)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v7i2.309

Abstract

Lake Lut Tawar, which is situated in Aceh Tengah, has a unique geological landscape, with the presence of rock formations of the Pre-Tertiary age (Tawar Formation) and its geological connection with the Sumatran fault and the Bukit Barisan mountains. Even though the geological condition of the Lut Tawar Lake has attracted the attention of many geologists to carry out various kinds of research, there is still a lot of geological understanding that is not yet known, especially regarding the Tawar Formation. Tawar Formation is of Pre-Tertiary age and can be found around Lut Tawar Lake, Aceh Tengah. This research targeted the Tawar Formation with two main objectives: (1) to evaluate structural deformation and geologic structures developed within the Tawar Formation and (2) to understand better the main factors influencing the evolution of the Tawar Formation. Integrated geological analyses, including structural geology analysis, scanline method, and stereo net method, were used to achieve the objectives of this research. Results from this study show that the Tawar Formation has experienced a complex structural deformation, evidenced by the presence of various geological structures such as multi-size and multi-episode fracture systems and numerous folds and faults. Furthermore, we interpret the evolution of the Tawar Formation to be strongly influenced by tectonic activity, possibly related to the movement of the Sibumasu plate, the Sumatran fault system, and plate subduction in the southwest part of Sumatra. It is expected that the results of this research will provide a new understanding of the history and evolution of the Tawar Formation and a better understanding of the deformation of rock structures that occurred in the Lut Tawar area, Aceh Tengah.  
SYNTHESIS AND CHARACTERIZATION OF NANOSILICA (SiO2) VOLCANIC ROCK OF MOUNT BATUR IN BALI Artha, I Komang Restu Widi; Mardana, Ida Bagus Putu; Arjana, I Gede
Indonesian Physical Review Vol. 7 No. 2 (2024)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v7i2.310

Abstract

This research was conducted to synthesize and characterize silica minerals (SiO2) from volcanic rocks in the active volcano in Bali, namely Mount Batur. The synthesis carried out on five different color variants of this rock sample is by the coprecipitation method which begins with the process of taking rock samples on Mount Batur, crushing the rock until it becomes powder with a size of 100 mesh, washing with distilled water and drying, immersing the rock powder in the solution. 2 M HCl for 12 hours, then the results of the soaking were reacted again with 7 M NaOH solution as a hydrolysis process to obtain pure SiO2 in the sample. In the form of sodium silicate precursor (Na2SiO3), the sample was titrated with a 2 M HCl solution to obtain silica gel which was then washed and dried until amorphous silica powder was produced. The results of the XRF analysis showed that the SiO2 mineral content in the sample after going through the synthesis process was 94.9% and the Si element was 89.9%. The XRD characterization results show that the phase formed from the sample has a quartz structure with the highest peak at an angle of 2θ = 23.07o, then decreases and levels out at an angle of 2θ = 32.94o which is characteristic of an amorphous structure and with a silica grain size of 8.47 nm – 8.65 nm.
SYNTHESIS AND CHARACTERIZATION OF ACTIVATED CARBON PREPARED FROM RICE HUSK BY PHYSICS-CHEMICAL ACTIVATION Suyoga Wiguna, Anak Agung Gde; Mardana, Ida Bagus Putu; Artawan, Putu
Indonesian Physical Review Vol. 7 No. 2 (2024)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v7i2.311

Abstract

Activated carbon is an amorphous carbon material predominantly composed of free carbon atoms with high adsorption capacity. The amorphous structure in activated carbon affects its adsorption capacity; the higher the percentage of amorphous carbon, the greater the adsorption capacity of the activated carbon. Activated carbon can be obtained from rice husk waste containing 30-40% C in cellulose, hemicellulose, and lignin. Therefore, this study was conducted to observe activated carbon's phases, morphology, elemental composition, and particle size. Activated carbon was synthesized using a physics-chemical activation method, which began with washing the rice husk samples, followed by air drying, carbonizing into charcoal, and grinding it finely. The rice husk charcoal powder was then physically activated at a temperature of 500℃. The physically activated product was then chemically activated using 6M HCl with a charcoal-to-activator ratio of 1:10 (m/V), stirred at 250 rpm for 1 hour, and then allowed to settle for 24 hours. It was then washed and dried to produce activated carbon powder. XRD test results showed diffraction peaks at 2θ = 22.23° without sharp or pointed peaks, indicating that the activated carbon has an amorphous structure. SEM test results showed the morphology of rice husk-activated carbon with spherical particle shapes and a particle size distribution of 20-70 nm. EDX test results showed that the rice husk activated carbon is predominantly composed of C, O, and Si with respective percentages of 54.31%, 40.04%, and 2.49%.  

Page 11 of 23 | Total Record : 221

 9   10   11   12   13 

Filter by Year

2018 2026


Reset
Filter By Issues
All Issue Vol. 9 No. 1 (2026) Vol. 8 No. 3 (2025) Vol. 8 No. 2 (2025) Vol. 8 No. 1 (2025) Vol. 7 No. 3 (2024) Vol. 7 No. 2 (2024) Vol. 7 No. 1 (2024) Vol. 6 No. 3 (2023) Vol. 6 No. 2 (2023) Vol. 6 No. 1 (2023) Vol. 5 No. 3 (2022) Vol. 5 No. 2 (2022) Vol. 5 No. 1 (2022) Vol. 4 No. 3 (2021) Vol. 4 No. 2 (2021) Vol. 4 No. 1 (2021) Vol. 3 No. 3 (2020) Vol. 3 No. 2 (2020) Vol. 3 No. 1 (2020) Vol. 2 No. 3 (2019) Vol. 2 No. 2 (2019) Vol 2, No 1 (2019) Vol. 1 No. 1 (2018) More Issue