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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 7, No 1 (2017): April" : 7 Documents clear
Penyelidikan Zona Longsor dengan Metode Resistivitas dan Analisis Stabilitas Lereng untuk Mitigasi Bencana Tanah Longsor Muwardi Sutasoma; Adi Susilo; Eko Andi Suryo
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 7, No 1 (2017): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v7i1.8784

Abstract

Research using geoelectric resistivity dipole-dipole configuration and slope stability analysis has been done in the area Jawar, District Dampit to find out the sliding plane landslide, landslide direction and factor of safety. Tracks Retrieval of data by the method of geoelectric resistivity as much as 5 tracks with the direction of the southeast to the northwest three tracks with a length of 100 m - 200 m and southwest to northeast as many as two passes with a length of 200-300 m. While the slope stability analysis performed topographic map data retrieval and data collection sondir and boring. Based on the analysis of the lithology of the study area using resistivity geoelectric method shows three layers of soil is clay (the top layer), tuff (middle layer) and basalt and lava (bottom layer). sliding plane landslide area is in the boundary between the layers of clay and tuff (a depth of 10.5 m). Based on the results of data processing of 3D resistivity geoelectric, landslide direction is southeast. Safety factor value of the security research area based slope stability analysis is 1.015. This value indicates that this area is prone to landslides.
EDLC Type Supercapacitor Electrode Based on Banana Peels Activated Carbon Alfiatur Rahmah; Ahmad Zainollah; Novi Artika Fitriani; Dwi Sapri Ramadhan; Maf'ud Cahayo; Masruroh Masruroh
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 7, No 1 (2017): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v7i1.1414

Abstract

The objective of this research is to observe the influence of surface area and porosity of banana peels activated carbon on the specific capacitance value as EDLC type supercapacitor electrode. Banana peels have been carbonated at temperature of 600ºC and activated using KOH with concentrations of 5%, 15%, 25% and 35% at temperature of 700ºC. The activated carbon banana peels mixed with PVAc (Polyvinyl acetat), added with aquades and compressed on pressure of 80 kN. The specific capacitance has been carried out using galvanostatic method with KOH 30% as electrolyte solution. Pore size of membrane activated carbon was observed using Scanning Electron Microscopy (SEM) and Brunnuaer-Emmet-Teller (BET) method for surface area of activated carbon. The result shows that the optimum value at activation using KOH 25% with large surface area 540,454 m2/g, porosity 17,89 µm and specific capacitances of 72,93 F/g. The increase of large surface area and porosity activated carbon has affected to specific capacitance value, so activated carbon of banana peels potentials as electrode material supercapacitor  EDLC type. Keyword: activated carbon; porosity; specific capacitance; and supercapacitor electrode.
Kajian Pengaruh Material Graphene pada kinerja Biosensor Berbasis Surface Plasmon Resonance (SPR) pada Deteksi Makanan Halal sebagai Pendukung Halal Research Center UIN Sunan Kalijaga Yogyakarta Wida Yanti; Asih Melati
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 7, No 1 (2017): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v7i1.3892

Abstract

Halal foods and medicines are an absolute daily needs for the Muslim community in Indonesia. Therefore the authority institutions in indonesian goverment should ensure the availability of this. It is of course inseparable from the role of higher education through the development of its technology to develop halal detection of foods and drugs. This study is an effort to contribute to the Halal Research Center of UIN Sunan Kalijaga Yogyakarta through the biosensor development in halal detection foods and medicines based on biosensor SPR. This device using graphene materials to improve the detection sensitivity of pork gelatin material that is likely contained in foodstuffs and medicine. From analytical calculation and computation, enhancement of the SPR biosensor performance by involvement graphene it was shown through the ATR (Attenuated Total Reflectance) reflective curve. The result of this results was found the enhancement of the sensitivity 2,86 %.Keyword: Surface Plasmon Resonance (SPR), Porcine Gelatin, Graphene, ATR
Pembuatan Ba0,8Sr0,2TiO3 menggunakan Metode Co-precipitation dengan Variasi Suhu Sintering Isma Alvia Nita; Yofentina Iriani; Fahru Nurosyid
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 7, No 1 (2017): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v7i1.1776

Abstract

Ba0,8Sr0,2TiO3 was made by co-precipitation method with the sintering temperature of 600oC, 700oC, 800oC and 900oC for 4 hours. Sintering temperature was varied to investigate its effect on microstructure and dielectric constant of Ba0,8Sr0,2TiO3. microstructure characterization was performed by X-Ray Diffraction (XRD) instrument. Dielectric constant characterization was perform by LCR meter. The crystal size increased significantly with increasing sintering temperature. Measurements of dielectric constant were performed at range of frequency 0.01 to 100 KHz. Dielectric constant value is highest at the lowest frequency. Dielectric constant value size increased significantly with increasing sintering temperature.
Analisa Shakemap dan Jenis Sesar Studi Kasus: Gempa bumi Terasa di Purworejo – Jawa Tengah Nugroho Budi Wibowo; Dian Susri Nurhaci
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 7, No 1 (2017): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v7i1.5066

Abstract

Earthquake July 18, 2016 at 5:59:00 am occur on land 18 Km Northwest Purworejo. The earthquake measuring 3.6SR at a depth of 13 kilometers and was felt in Purworejo I - II MMI. This study aims to analyze the earthquake affected based on shakemap analysis and determine the type of fault used the initial motion of P waves that recorded on seismograph. Shakemap analysis using shakemap application at BMKG servers based on the accelerograph network BMKG. Meanwhile, an analysis the type of fault using focal application with data input signals from the seismograph SeisComP3 system. The highest values of peak ground acceleration (PGA) recorded in BPBD Kebumen’s station is 0.5075 gal (EW component), 0.5018 gal (NS component) and 0.3538 gal (UD component). Model shakemap for Purworejo earthquake felt I SIG (I-II MMI) in Purworejo, Kebumen and Banjarnegara. The models of focal mechanism are the first nodal obtained strike 321, dip 33, rake 95, and the second nodal obtained strike 135, dip 57, rake 87. Based on the distribution model compression axis (up or T) and dilatation (down or P), the type of fault is reverse fault. The epicenter of the Purworejo earthquake correlated with the Rebung faultin Purworejo.Keyword: Shakemap, Focal Mechanism, PGA, Intensity, Earthquake, Fault.
Penentuan Tingkat Kerawanan Gempa Bumi Menggunakan Metode Refraksi Mikrotremor (ReMi) di Kota Surakarta Sari Pratiwi; Budi Legowo; Sorja Koesuma
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 7, No 1 (2017): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v7i1.4884

Abstract

Berdasarkan informasi dari letak geografis dan struktur geologi, Kota Surakarta termasuk wilayah yang mengalami dampak gempa bumi[1]. Salah satu upaya untuk mengurangi dampak dari gempa bumi yaitu melakukan analisa tingkat bahaya seismik sebagai salah satu usaha mitigasi bencana gempa dengan metode mikrotremor yang dapat diketahui nilai amplifikasi dan periode dominan.  Pada penelitian telah dilakukan di Kota Surakarta menggunakan P.A.S.I Seismograph Mod. 16S24-P, 3D Borehole Geophone Model GFA 60/100. Interval pada setiap lokasi yaitu 1-3 km dengan 12 lokasi penelitian. Diperlukan waktu sekitar 20 menit dengan tiga kali pengulangan untuk perekaman data disetiap titik. Pengolahan data mikrotremor menggunakan software Geopsy dan Surfer 11. Amplifikasi rendah pada zona 1 merupakan zona yang cukup aman terhadap bahaya gempa bumi. Zona 1 berada di wilayah Mojo, Moewardi, Sangkrah, Dawung, SMPN 10, Mojosongo, Lapangan Banyuanyar, Laweyan, Karang Asem danTipes dengan amplifikasi 0,807314 sampai dengan 2,60402. Lokasi pada jenis I termasuk wilayah yang cukup aman terhadap gempa bumi karena memiliki ketebalan sedimen yang tipis daripada jenis II. Jenis I berada di wilayah Mojo, Moewardi, Sangkrah, SMPN 10, Manahan, Mojosongo, Lapangan Banyuanyar, Laweyan, Karang Asem, Jebres dan Tipes dengan  periode dominan antara 0,058978s sampai dengan 0,231411s. Sebaran tingkat kerawanan gempa bumi di kota Surakarta dapat dilihat pada peta zonasi berdasarkan nilai A0 dan T0 yang kemudian diklasifikasikan hasilnya pada zona atau jenis tertentu sehingga diperoleh informasi berupa tingkat kerawanan dan juga jenis batuan yang tersusun dibawah permukaan tanah berdasarkan parameter yang diukur.
Front Matter Vol 06 No 01 2017 Mohtar Yunianto
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 7, No 1 (2017): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v7i1.19968

Abstract

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