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Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics
Published by Universitas Islam Negeri Syarif Hidayatullah Jakarta
ISSN : 26210215     EISSN : 2621489X     DOI : -
Core Subject : Science, Engineering,
Earth & Planetary Sciences Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Physics
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics is a journal of physics that published by Departement of Physics, Faculty of Science and Technology UIN Syarif Hidayatullah Jakarta. The aim of the journal is to disseminate the researches done by researchers both from Indonesian and overseas. This journal focused on physics field including Materials Sciences, Geophysics, Instrumentation Physics, and Theoretical Physics. AL-FIZIYA is also dedicated to preserving the transmission of knowledge of science. The journal welcomes contributions from scholars around the world in the physics field, both in English and Bahasa.
Arjuna Subject : -
Articles 154 Documents
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SOIL VULNERABILITY ASSESSMENT USING THE HORIZONTAL AND VERTICAL SPECTRUM RATIO (HVSR) METHOD OF AMBIENT NOISE WAVES, EAST JAVA ,INDOSEIA eka nurjanah wulandari; Moh Iqbal Tawaka;
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics AL-FIZIYA JOURNAL OF MATERIALS SCIENCE, GEOPHYSICS, INSTRUMENTATION AND THEORETICAL PHYSICS VOL.5, N
Publisher : Physics Study Programme, Faculty of Science and Technology UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/fiziya.v5i2.17226

Abstract

The local site effect determines the risk level of an earthquake. East Java has a high level of seismicity. One of the earthquake mitigation efforts is to estimate the dynamic characteristics of grounf using microtremors. The purpose of this study was to determine the natural frequency distribution, amplification factor, and seismic vulnerability index. Seismic signals are obtained from stationary and temporal seimograph records from 100 measurement locations installed in the East Java and Madura regions. This study uses the horizontal and vertical spectrum ratio (HVSR) curve analysis method popularized by Nakamura (2000). The results of the study showed that the seismic vulnerability index varied from 0.25 to 54.2. Areas that have a high level of earthquake risk include Bangkalan, Gresik, Jombang, Lumajang, Malang, Mojokerto, Pasuruan, Ponorogo, Sampang. Sidoarjo, and Surabaya. Based on the history of destructive earthquakes, this area has experienced earthquake intensity ranging from III - IX MMI.
The Analysis Of Micromechanic On Creating Of Gypsum Board Strengthened By Bintaro Fruit Fiber (Cerbera Manghas) With 3d Orientation Tri Adelia; delovita vita ginting; Romi Fadli Syahputra
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics AL-FIZIYA JOURNAL OF MATERIALS SCIENCE, GEOPHYSICS, INSTRUMENTATION AND THEORETICAL PHYSICS VOL.5, N
Publisher : Physics Study Programme, Faculty of Science and Technology UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/fiziya.v5i2.29783

Abstract

This research succeeded in modifying the manufacture of gypsum board with the addition of natural fiber, namely bintaro fruit with the 3D orientation arrangement method. The raw materials for this research are gypsum flour and Bintaro fruit fiber as a matrix and filler. Bintaro fruit fiber previously carried out an alkalization process where the fiber was soaked in a solution of NaOH and distilled water for 24 hours. The manufacture of composites using the ratio of the matrix mass fraction and the filler mass fraction is as follows 100: 0, 99: 1, 98: 2 and 97: 3. The characterizations carried out include density test, moisture content test, flexural strength test and micromechanical analysis. Gypsum board composite based on micromechanical calculations resulted in the highest density value in the control sample, in the best density value was at the filler fraction of 3%, the best moisture content value in the control sample, the flexural strength test value the best of the control sample, but the filler fraction is 3% of the sample with the best fracture resistance. 3D orientation in theory and practice has fulfilled the principle that it is able to increase the physical and mechanical value of gypsum board.
Utilization of Lightning Energy As a Lightning Power Plant to Optimize Lightning Potential in Medan City Rizky Agassy Sihombing; Jennie Febrina Hutagalung; Jenita Br. Tambunan
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics AL-FIZIYA JOURNAL OF MATERIALS SCIENCE, GEOPHYSICS, INSTRUMENTATION AND THEORETICAL PHYSICS VOL.5, N
Publisher : Physics Study Programme, Faculty of Science and Technology UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/fiziya.v5i2.25926

Abstract

In addition to solar, wind, and water waves, there are other sources of energy that are renewable. Researchers are currently testing the use of these energies with a device that can draw electricity from the air. The new energy is electricity in the air that triggers the formation of lightning & lightning. The need for electrical energy is increasing day by day. Electrical energy supply in Indonesia itself is usually supplied from power plants such as Hydroelectric Power (PLTA), Air (PLTU), Solar (PLTS), Diesel (PLTD), and Geothermal (PLTG) whose existence still does not meet electricity needs. The type of research used is descriptive qualitative research by literature study use 10 journals. The purpose of this work is to utilize lightning as an energy source in order to maximize the potential of Indonesia's natural resources, especially in the city of Medan. The results show that lightning can be used as an alternative energy source, because lightning is a renewable energy and will not run out even if it is used continuously.
Radial wave function of 2D and 3D quantum harmonic oscillator Adam Badra Cahaya
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics AL-FIZIYA JOURNAL OF MATERIALS SCIENCE, GEOPHYSICS, INSTRUMENTATION AND THEORETICAL PHYSICS VOL.5, N
Publisher : Physics Study Programme, Faculty of Science and Technology UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/fiziya.v5i2.26172

Abstract

One dimensional quantum harmonic oscillator is well studied in elementary textbooks of quantum mechanics. The wave function of one-dimensional oscillator harmonic can be written in term of Hermite polynomial. Due to the symmetry of the spring energy, the wave functions of two-dimensional and three-dimensional harmonic oscillators can be written as products of the one-dimensional case. Because of that, the wave functions of two- and three-dimensional cases are focused on cartesian coordinates. In this article, we utilize polar and spherical coordinates to describe the wave function of two- and three-dimensional harmonic oscillators, respectively. The radial part of the wave functions can be written in term of associated Laguerre polynomials.
Identification of Iron Ore Deposit in Sub-Surface using Resistivity and Induced Polarization Methods at Sarakaman, Sebuku Island, South Kalimantan Merry Nur Rakhmawati; Sutrisno Sutrisno; Yanto Sudiyanto; Wahyu Hidayat
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics AL-FIZIYA JOURNAL OF MATERIALS SCIENCE, GEOPHYSICS, INSTRUMENTATION AND THEORETICAL PHYSICS VOL.5, N
Publisher : Physics Study Programme, Faculty of Science and Technology UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/fiziya.v5i2.25648

Abstract

Iron is the second most abundant metal on earth. Sebuku Island is one of the areas in Indonesia that has potential for laterite iron ore. This study aims to detect the presence of mineralized zones and estimate the volume of iron ore. Therefore, geophysical research was carried out using the resistivity method and the Induced Polarization methods with the Wenner-Schlumberger configuration. The research was carried out in 4 paths along 475 m with a space between the electrodes of 5 meters. Based on modeling, 20 iron ore deposits were found in the study area on all trajectories characterized by high chargeability values ranging from 251,55 – 810,55 ms which correlated with low resistivity values of 4,02 – 124,41 m. Then it was found that the direction of the distribution of iron ore deposits in the study area was north-south and there was no continuous zone of iron ore deposits due to the long distance of the path. The volume of iron ore deposits in the study area in an area of ±39 hectares is estimated to be around 1.807.614 m3 with total reserves of iron ore deposits of 7.230.456 tons.
Analysis of Landslide Potential Using Resistivity, Geology and Climatology Values in Samangki Village, Simbang District, Maros Regency Ahmad Haan; Ayusari Wahyuni; Muh. Said. L; Rahmaniah Fisika
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics AL-FIZIYA JOURNAL OF MATERIALS SCIENCE, GEOPHYSICS, INSTRUMENTATION AND THEORETICAL PHYSICS VOL.5, N
Publisher : Physics Study Programme, Faculty of Science and Technology UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/fiziya.v5i2.29004

Abstract

Research has been carried out that aims to determine the analysis of landslide potential using resistivity, geology, and climatology values in Samangki Village, Simbang District, Maros Regency.This study uses the resistivity method of the wenner configuration on three tracks of 120 meters at a distance between the electrodes of 10 meters. Interpretation results obtained resistivity values on the first track between 61,1-972 W.m, on the second trajectory of 58,2 - 666 W.m, and on the last track the resistivity value of the range 60,1 - 1105 W.m, which indicates the presence of limestone inserts sandstone and aquiver scattered on each track. Then combined with secondary data in the form of rainfall maps, geological maps and soil type maps. The results of the analysis then show that the location of this research is in an area prone to landslides according to primary data or field data and secondary data from the five parameters mentioned above.
Calculating InN/GaN Transmission Coefficient from Single Barrier to Five Barriers with Propagation Matrix and Transfer Matrix Methods Ishmah Ulya; Russell Ong; Yuan Alfinsyah Sihombing
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics AL-FIZIYA JOURNAL OF MATERIALS SCIENCE, GEOPHYSICS, INSTRUMENTATION AND THEORETICAL PHYSICS VOL.5, N
Publisher : Physics Study Programme, Faculty of Science and Technology UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/fiziya.v5i2.28549

Abstract

In this study, the value of transmission coefficient on InN/GaN semiconductor from a single barrier to five barriers was determined by using the propagation matrix method and the transfer matrix method. This study aims to see the effect of adding a barrier to the number of resonance tunneling that occurs, to see the difference in transmission coefficient values which was obtained with the two methods, and to determine the effectiveness of the program execution process time from the propagation matrix and transfer matrix methods using Matlab programming. The results obtained indicated that the value of the transmission coefficient obtained from the two methods was the same. As the number of barriers increases, the number of resonance tunneling that occurs will increase. These two matrix methods had differences in terms of the effectiveness of the program execution process time and calculation process. The propagation matrix method was considered more effective than the transfer matrix method.
CHARACTERISTICS OF TERMITE ANTI PARTICLE BOARD FROM BINTARO FRUIT FIBER WITH BINTARO FRUIT SEED EXTRACT COATING USING SPRAY COATING METHOD Delovita Ginting; karnila ila sukma
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics AL-FIZIYA JOURNAL OF MATERIALS SCIENCE, GEOPHYSICS, INSTRUMENTATION AND THEORETICAL PHYSICS VOL.5, N
Publisher : Physics Study Programme, Faculty of Science and Technology UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/fiziya.v5i2.31241

Abstract

Termites are pests that damage wooden furniture. Termite attacks on wooden furniture are getting higher and wider so that the value of losses due to termite attacks on furniture is increasing from year to year. This research has succeeded in making particle boards from bintaro fruit fibers as fillers and urea formaldehyde resin (UF) as a matrix with a composition of filler mass fractions: the matrix of the particle board to be made is 30:70. The particle board that has been made is then coated using bintaro seed extract and UF resin using the spray coating method. The extract mass fractions of bintaro seeds and UF resins in this study were sample 1 (90:10), sample 2 (80:20), sample 3 (70:30), sample 4 (60:40) and sample 5 (50:50). The physical characterization of particleboard includes density, water absorption and moisture content. The mechanical characterization of particle boards is the bending strength and characterization of particle boards to resistance to termite attacks. The results of this study show that particle boards that have optimum values are sample particle boards 1 with a density value of 0.864 gr / cm³, water absorption of 4.28% which has met SNI 03-2105-2006 and the results of testing the resistance to termites 3.45% have met SNI 01-7207-2006. Because in the manufacture of particle boards are influenced by the structure and physical shape of the raw materials used.
Manufacture of UAV Skywalker 1900 Flying Vehicles Made of Composites Ferry Setiawan; Muhammad Fauzaan Firmansyah; Dhimas Wicaksono; Ikbal Rizki Putra
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics AL-FIZIYA JOURNAL OF MATERIALS SCIENCE, GEOPHYSICS, INSTRUMENTATION AND THEORETICAL PHYSICS VOL.5, N
Publisher : Physics Study Programme, Faculty of Science and Technology UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/fiziya.v5i2.30531

Abstract

The purpose of this research is to make a flying vehicle with the SKYWALKER 1900 UAV model for mapping missions with fiber glass reinforced composite materials on the wings and carbon fiber on the fuselage and tail. With composite materials, it is hoped that the structure of the UAV SKYWALKER 1900 will be stronger than previous materials using styrofoam. The method for making flying vehicles in this study uses 3D printing, to print UAV parts such as wings, fuselag and tail. then molding for components is made, and the final stage is manufacturing parts with composites using glass fiber and carbon fiber reinforcement using the vacuum bagging method. the analysis of weight deviation on the fuselag has a value of 70% and the weight deviation on the wings is 52%, the size deviation on the fuselag and wings weight occurs due to the putty process during finishing. the results of the aerodynamic analysis on the fuselag using solid work software, the UAV flight limit is 20 m/s to get the best flight results when flying  
2D Joint Inversion of Gravity and Magnetic Data to Evaluate a Geological Structure in Tanimbar Island Arkanu Andaru; Praditiyo Riyadi; Muhammad Nafian
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics AL-FIZIYA JOURNAL OF MATERIALS SCIENCE, GEOPHYSICS, INSTRUMENTATION AND THEORETICAL PHYSICS VOL.6, N
Publisher : Physics Study Programme, Faculty of Science and Technology UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/fiziya.v6iI.34293

Abstract

The need for hydrocarbon energy, especially oil and gas, requires continuous exploration of hydrocarbon reserves, especially in eastern Indonesia. Tanimbar Islands, Maluku was chosen to be the research area because of its complex subsurface geology and is located on the fold thrust belt resulting from tectonic evolution. In this research, an innovation is carried out using joint inversion modeling by correlating physical parameters from two different geophysical data, which are gravity and geomagnetic. The purpose of this research is to determine the subsurface mapping of the research area, determine the density and susceptibility values of rocks, and determine the structural patterns that exist in the subsurface. The results of subsurface mapping of the Tanimbar Islands based on the results of Joint Inversion modelling have found a geological structure pattern in the form of a fold thrust belt due to the Banda Arc subduction zone. In section A-A', there is a sequence of fold thrust belt with 10 structural patterns, including 6 structures in the northwest-southeast direction and 4 structures in the northeast-southwest direction. In section B-B' there are 9 structural patterns in the northeast-southwest direction. High anomalies obtained density values ranging from 2.77 - 2.81 gr/cm3 and susceptibility ranging from 0.00125 - 0.0013 SI are thought to be caused by high basement in the form of volcanic rocks, while low anomalies obtained density values ranging from 2.45 - 2.49 gr/cm3 and susceptibility ranging from 0.0008 - 0.00085 SI are thought to be caused by thick sedimentary layers of the Batimafudi Formation.

Page 8 of 16 | Total Record : 154

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