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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
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Articles 7 Documents
 1 
Search results for , issue "Vol 5, No 02 (2015): October" : 7 Documents clear
Nucleon-Nucleon Potentials and Computation of Scattering Phase Shifts Jhasaketan Bhoi; Ujjwal Laha
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.v5i02.296

Abstract

By judicious exploitation of supersymmetry formalism of quantum mechanics higher partial wave nucleon-nucleon potentials are generated from its ground state interactions. The nuclear Hulthen potential and the corresponding ground state wave function with the parameters of Arnold and MacKellar are used as the starting point of our calculation. We compute the scattering phase shifts for our constructed potentials through Phase Function Method to examine the merit of our approach to the problem.
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.
Interpretation of Oil Seepage of Source Rock Based Magnetic Survey in Cipari Cilacap District Sukmaji Anom Raharjo; Sehah S
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.v5i02.298

Abstract

The magnetic survey had been conducted in Village of Cipari, District of Cipari, Region of  Cilacap to interpret to the location of the oil seepage source rock. Boundary of the research area is 108.75675°E – 108.77611°E and 7.42319°S – 7.43761°S. The observed total magnetic data is corrected and reducted to obtain the local magnetic anomaly data. The local magnetic anomaly data is applied to model the subsurface bodies anomalies based on the Mag2DC for Windows software. With be supported the geological information, the some bodies anomalies are interpreted as the basaltic igneous rock (c = 0.0051), the alternately of sandstone and claystone and insert of marl from Halang Formation (c = 0.0014), the breccia from Kumbang Formation (c = 0.0035), the alternately of sandstones and claystone with insert of marl and breccia from Halang Formation (c = 0.0036), the claystone from Tapak Formation (c = 0.0015), the alternately of sandstones and claystone with insert of marl and compacted breccia from Halang Formation (c = 0.0030), and the alternately of sandstone and claystone from   Halang Formation (c = 0.0020). The plantonic foraminifer fossils as resources of oil seepage are estimated in the sedimentaries rocks, where the oil flows from those rocks into the         reservoir (source rock). Based on the interpretation results, the source rock is above basaltic igneous rock with the approximate position is 108.76164°W and 7.43089°S; and the depth is 132.09 meters below the average topographic.
Calculation of the Scattering Amplitude of A Nucleus in the Presence of the Yukawa Potential L. Nickhah; A. A. Rajabi; F. Pakdel
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.v5i02.288

Abstract

The scattering amplitudes are obtained from the phase shifts for a spherically symmetric potential using the D-dimensional Schrödinger equation and the partial wave method. Plots show that the real and imaginary parts of the scattering amplitude are almost similar behavior. 
Effect of Guided Discovery learning model in mastering of Force and Motion subject Parno P
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.v5i02.276

Abstract

This research aims to describe students’ mastering of the basic concept about Force and Motion through the Guided Discovery learning model. This research uses pre-experimental one-group pretest-post test design. The research subjects are 25 students in sixth semester in the physics education department who are taking the Capita Selecta of School Physics course. This research uses the Basic Concept Mastering about Forceand Motion Test, and the Students Response Questionnaire for Learning Process instruments. The test data is analyzed using an average normalized gain secure, andthe question naire data are analyzed descriptively. The results show that student (1) has an average of mastering of the basic concept 75.38, an average normalized gain score of individual 0.556 that is smaller than an average normalized gain score of class 0.568 (medium category), and (2) gives a positive response for the learning process, namely 58.33% agree and 38.22% strongly agree, on the Force and Motion topic.
Influence of Mixing Time to Crystal Structure and Dielectric Constant of Ba0,9Sr0,1TiO3 Dianisa Khoirum Sandi; Agus Supriyanto; Anif Jamaludin; Yofentina Iriani
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.v5i02.290

Abstract

Barium Strontium Titanate (Ba1-xSrxTiO3) or BST has been synthesized using solid state reaction method. Raw materials of BST were BaCO3, SrCO3, and TiO2. Those materials were mixed, pressed, and sintered at temperature 1200oC for 2 h. Mixing time of raw materials was varied to identify its effects on crystal structures and dielectrics constant of Ba0.9Sr0.1TiO3 using X-Ray Diffraction (XRD) and LCR meter instrument, respectively. The results of XRD showed that crystals structure of Ba0.9Sr0.1TiO3 is tetragonal. Lattice parameter of Ba0.9Sr0.1TiO3 for 6 h of mixing time is a = b = 3.988 Å and c = 3.998 Å. Lattice parameter of Ba0.9Sr0.1TiO3 for 8 h of mixing time is a = b = 3.976 Å and c = 4.000 Å. Crystalline size of Ba0.9Sr0.1TiO3 was calculated using Scherrer equation. Crystalline size, crystallinity, and dielectric constant of Ba0.9Sr0.1TiO3 for 6 h of mixing time is 38 nm, 96%, and 115 at frequency 1 KHz, respectively while their value for 8 h of mixing time is 39 nm, 96%, and 196 at frequency 1 KHz, respectively. Thus it can be concluded that mixing time affects the lattice parameters of Ba0.9Sr0.1TiO3 crystal. The longer mixing time causes crystalline size, crystallinity, and dielectrics constant increase.
Identification of subsurface fault using schlumberger configuration geoelectricity method. Case study in Opak River Yogyakarta Ismi Lutfinur; Khumaedi K; Hadi Susanto
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.v5i02.278

Abstract

The Opak river is formed by fault. The earthquake in Yogyakarta on May 27th, 2006 had activated the Opak’s fault and caused secondary fault. The fault had made destruction of the infrastructure. This research aimed to determine the description of subsurface structure and to identify the location of the underground fault. The Schlumberger configuration of geoelectrical method was used for identifying the fault in the research area. The data collected in three lines of each which the length is 75 meters. The datas were processed by Res2dinv and Surfer 10.0. Based on the result of the process, the resistivity value are 5-1077 Ωm and the discontinue plane of the contour profile resistivity at depth function. The discontinuities of resistivity value can be interpreted the fault plane. The position of the fault in line A is 38 m, while on the line B and C, the fault locations are located at 33 m from the start point of the measurement. The faults in lines A, B, and C are straight with the strike N 113° E.

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