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INDONESIA
INDONESIAN JOURNAL OF APPLIED PHYSICS
Published by Universitas Sebelas Maret
ISSN : 20890133     EISSN : 24776416     DOI : -
Core Subject : Science,
Astronomy Energy Materials Science & Nanotechnology Physics
Indonesia Journal of Apllied Physics provides rapid publication of short reports and important research in all fields of physics. Indonesia Journal of Apllied Physics publishes articles that are of significance in their respective fields whilst also contributing to the disclipline of physics as a whole. Articles should be submitted to the Editorial Office of Indonesia Journal of Apllied Physics through this site. Further information on submission is also available at this site
Arjuna Subject : -
Articles 267 Documents
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Identification of Hydrothermal Aquifer Zone using Geo-Electrical Method in Kaloling Sinjai District Lantu L; D. A. Suriamihardja; A. M. Imran; Tri Harianto
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 5, No 02 (2015): October
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v5i02.284

Abstract

Geothermal energy is one of the natural resources which  emerged on the subsurface ofthe earth can be in a gaseous form (the vapor heat) or in the form of hydrothermal. The geothermal Panggo that located at watersheds of Kalamisu river, was one of the three sources of hydrothermal system  existing in district Sinjai East. The existence of the geothermal system in this area will much give many advantagest if managed optimally. This research aims to map the spread of the hydrothermal aquifer zone at the subsurface and it potentials in Panggo village base on electrical properties. Methods used in this research were geo-electrical using Wenner and Schlumberger configurations.At all these research area, it is found the presence of zones which has low resistivity (< 20 Ωm), and it is interpreted as the spread of hydrothermal zones. The hydrothermal system appears at subsurface allegedly caused by the geological fault of Kalamisu across this region.
Distribution mapping of metal sediment using polarization data interpretation on the field “X” in PT Newmont Nusa Tenggara (PT NNT) Sukri Arjuna; Adi Susilo; Sunaryo S
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 4, No 01 (2014): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v4i01.1174

Abstract

Geophysical research has been done on mapping distribution of metal deposits in the field "X" PT Newmont Nusa Tenggara using induced polarization geoelectric method pole-dipole configuration. Measurements performed using IRIS intrument type Elrec Pro where measurements of seven lines with length 2.3 km and electrode spacing 100 m. Induced polarization data furtheranalyzed by using Res2dinv version 3.56 and Surfer 10. Interpreted based on the parameters of chrageability and resistivity that correlated with regional geological information from the study area. As a result, the structure of rocks beneath the surface lithology research area consists of five units major rock that is tuffan claystone unit, sandstone tuffan unit, limestone unit, lava-brecciaunit, and andesite-basalt unit. Mineralization zone at the high chargeabilitas at 69.7 to 155 msec range supported by the low resistivity in the range of 4.21 to 26.5 Ωm which straight of anomalies in West-East direction at the depth of ± 50-400 m.
Model Laboratorium Lapangan Identifikasi Limbah Cair Menggunakan Metode Cross-Hole Geolistrik Resistivitas Reza Devianta; Budi Legowo; Hery Purwanto
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 3, No 02 (2013): October
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v3i02.1246

Abstract

It has been done a cross-hole method of field laboratory geoelectrical resistivity to identify the wastewater in Grogol, Gatak, Delanggu, Jawa Tengah. Measurements were performed using McOHM 2119C-EL OYO Resistivity meter. The Anomaly of the object that has given of this research is wastewater. The data acquisition of cross-hole model use dipole-dipole geoelectrical configuration. The distance between the two boreholes is 3 m and spaced electrodes that used are 0,1 m; 0,2 m; 0,3 m and 0,4 m. The Data will be taken from the movement of saline water anomaly that mobiles on the ground and each taking every 4 days for 5 times of the data acquisition. A description of the result of the anomaly will be reviewed using RES2DINV 3.56software. The visualization of the movement of wastewater model on day 4th is at a depth of 0,4 m – 0,6 m at a distance x = 0,5 m - 2,5 m with resistivity 10 - 10,8 Ωm. On day 8th is located at a depth x = 0,5 m – 0,8 m, x = 0,5 m – 2,5 m with resistivity 10 - 14 Ωm. And on day 12th is located at a depth of 0,8 m – 1,2 m at a distance x = 0 m – 0,5 m, x = 2,5 m - 3,0 m and x =1,5m - 2,5 m with a resistivity of 12,4 - 15 Ωm.
Pengaruh Rapat Arus Terhadap Ketebalan Dan Struktur Kristal Lapisan Nikel pada Tembaga Setyowati S; Y Iriani; A H Ramelan
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 2, No 02 (2012): October
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v2i02.1278

Abstract

The effect of current density on thickness and crystal structures of the coatings in the electroplating of nickel on copper has been investigated. The electroplating of nickel was conducted at a voltage of 0.5 V for 10 minutes with varied current densities of 0.3 mA/cm2; 0.6 mA/cm2; 0.9 mA/cm2; and 1 mA/cm2. The nickel coatings werw tested by thickness measurement and crystal structures determination. The experimental results showed that the thickness of the nickel coatings increased as the current density increased. The XRD characterization of the nickel coatings revealed the diffraction patterns for cubic structures with orientation of (111) and (200). As the current density increases, the crystal with (111) and (200) orientation tends to be formed more lagely.
Interpretasi Struktur Bawah Tanah pada Sistem Sungai Bribin dengan Metode Geo Khafidh Nur Aziz; Yosaphat Sumardi; Denny Darmawan; Nugroho Budi Wibowo
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 6, No 01 (2016): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v6i01.1796

Abstract

This research was aimed to determine the distribution pattern of magnetic field anomaly and to identify the lithology of underground structure in Bribin Karst using geomagnetic method. Research location was Semanu Sub-district, Gunungkidul Regency at UTM coordinate of 464061 mT-464929 mT and 9111097 mU-9111970 mU. The data were taken using G-5 Proton Precession Magnetometer (PPM) by looping method. The result showed that the distribution pattern of the magnetic field anomaly in Karst Bribin has value of 330 nT - 530 nT and anomaly values reflecting the system of Bribin River has value of 400 nT-460 nT. The lithology of underground structure in Karst Bribin has susceptibility value of -0.069 (in SI) - 0.0661 (in SI) with depth 200 m associated with limestone, tuff, gypsum, rock salt, and minerals calcite and anhydrite and the lithology associated with the system of Bribin River has susceptibility value -0.069 (in SI) associated with gypsum, rock salt, and minerals anhydrite.
Analisis Nilai Impedansi Listrik pada Daging Ikan Nila yang Disimpan dalam Lemari Es Rizka Rahmatie Agusta Putri; Chomsin Sulistya; Didik R Santoso
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 6, No 02 (2016): October
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v6i02.1780

Abstract

Electrical impedance value analysis on frozen tilapia flesh aims to analyze non-destructive method of electrical impedance to distinguish between fresh and frozen tilapia flesh. The measurements were carried out to measure electrical impedance fresh tilapia flesh and frozen tilapia flesh for 1-5 days at 10 Hz - 200 kHz frequency using needle electrode. The result shows that the impedance value characteristics of the fresh tilapia flesh is higher than frozen tilapia flesh. The longer strored in the freezer is directly reversed with the value of electrical impedance. The observation of electrical impedance on quality of tilapia flesh preferable observed at a frequency of 1 kHz - 100 kHz. 
Analisis Seismisitas dan Energi Gempabumi di Kawasan Jalur Sesar Opak Oyo Yogyakarta Nugroho Budi Wibowo; Juwita Nur Sembri
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 7, No 2 (2017): October
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v7i2.13702

Abstract

The earthquake that occurred in the Region of Yogyakarta caused by fault activity on the surface, such as Opak-Oyo Fault, Dengkeng Fault, Menoreh Fault  and plate tectonic activity in South of Java. Opak-Oyo fault activity reflected from epicenter distribution and earthquake energy. This research aims to analyze the earthquake energy which has epicenter around the Opak-Oyo Fault in spatial and temporal. Based on earthquake catalog from 2008 – 2016, there were 66 earthquake with 11 significant event. Epicenter distribution reflected in seismicity map and for the tectonic parameter use least square method. Seismicity map of Opak Oyo Fault area show that distribution of epicenter in the East and Southeast of fault line with the calculation result of b value by least square method is 0.4. In temporal, there is an increasing trend of events in 2008-2015 and decline trend of earthquake in 2015- 2017. Earthquake energy that released in Opak Oyo Fault area has varies value about 1x105.2 – 1x1012joules. Meanwhile, the energy that associated with the existence of Opak Fault Lines has value between 1x105.2 – 1x109.6 Joule with 10-20 km of hypocenter.The distribution energy has similar pattern with geological formations in that area. 
Back Matter Vol 07 No 02 2017 Mohtar Yunianto
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 7, No 2 (2017): October
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v7i2.19974

Abstract

Astrophysics Laboratory-Based Lecture Material Development of Solarscope with Integration and Interconnection Asih Melati
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 5, No 01 (2015): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v5i01.274

Abstract

The development of laboratory-based lecture materials with integrated and interconnected value is a requirement for study and practical materials and in line with the vision and mission of UIN Sunan Kalijaga. As a result, the optimization of laboratory’s equipment is urgently needed. Although UIN Sunan Kalijaga Laboratory have had Solarscope telescope – which have a guidebook in German language – for six years, it was not optimally used even it can be used to satisfy the desires to observe astronomical objects economically, accurately and easy to operate. Based on above, this research propose to create a lab-work module for Solarscope with integration and interconnection value. This research used 4D methodology (Define, Design, Develop and Disseminate) and have passed the assessment and validation phase from material, media and integrated-interconnected value experts. The data analysis of the module which was mapped by Sukarja into 5 scale mark resulted in good grade in the module assessment by material experts with 80% from the ideal mark with most of the complaint is in the formula typing which is not clear in its derivative. The module assessment by media experts scored very good grade with 88.89% from the ideal mark regarding the content and the figures of the module. Lastly, from the integrated-interconnected value experts marked in good grade with 73.50% from the ideal mark and suggested the addition of supported Al-Qur’an verses and relevant exclamation of the Al-Qur’an’s passages. With all of these assessment results, this module can be used as the material of astrophysics lab-work and for supporting students’ researches with integration-interconnection value and enhance the university’s book collection which will support the vision and mission of UIN Sunan Kalijaga
Curved Dyonic Domain Walls in Four Dimensions Bobby Eka Gunara
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 4, No 01 (2014): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v4i01.1164

Abstract

In this short paper we show the existence of solitonic solutions of four dimensional ungauged N=1 supergravity coupled to arbitrary vector and chiral multiplets whose Ricci scalar curvature is constant. The Ricci scalar of spacetimes indeed depends on the σ-model, namely the complex scalars and their first derivative. Then, we give two explicit models, namely static domain walls and static spherical symmetric black holes which are related to our previous works.

Page 4 of 27 | Total Record : 267

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