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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 267 Documents
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Design of Detection Device for Cu Contaminated WaterUsing Induction Principle Frida Agung Rakhmadi; Astika Rusma Dewi; Ahmad Farid Azizi
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.v5i01.266

Abstract

The research on detection device design of Cu contaminated water using induction principle has been done. The purpose of this research is to create a detection device of Cu contaminated water using induction principle, characterize the precision of core sensor on detection device, characterize the stability of detection device, and implement the detection device to Cu contaminated water. This research was conducted in four phases: manufacturing of detection device, characterization of core sensor precision, characterization of detection devices stability, and implementation of detection device to Cu contaminated water. The results showed that the detection device of Cu contaminated water using induction principle has been successfully made. The precision of core sensor was 99.96%, while the stability of detection device was the 60th second after turn-on. The success rate of detection device implementation on Cu contaminated water was 100.00%.
Solution of The Schrödinger Equation for Trigonometric Scarf Plus Poschl-Teller Non-Central Potential Using Supersymmetry Quantum Mechanics Cari C; Suparmi S; Antomi Saregar
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.v4i01.1156

Abstract

In this paper, we show that the exact energy eigenvalues and eigen functions of the Schrödinger equation for charged particles moving in certain class of noncentral potentials can be easily calculated analytically in a simple and elegant manner by using Supersymmetric method (SUSYQM). We discuss the trigonometric Scarf plus Poschl-Teller systems. Then, by operating the lowering operator we get the ground state wave function, and the excited state wave functions are obtained by operating raising operator repeatedly. The energy eigenvalue is expressed in the closed form obtained using the shape invariant properties. The results are in exact agreement with other methods.
Penentuan Tingkat Kekerasan Batuan Menggunakan Metode Seismik Refraksi di Jatikuwung Karanganyar Nakif Nurcandra; Darsono D; Sorja Koesuma
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 3, No 01 (2013): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v3i01.1212

Abstract

It has been done a research about the determination of rock hardness level by using refraction seismic method in Jatikuwung Karanganyar. The research is done by using Seismograph PASI 16S24-P with the path length of 48 meters, distance between geophone 2 meters, 5 shots in each spread and there are four surveys part totally. The processing data is done by using SeisImager software with Plotrefa and Pickwin95 program.We use intercept time method for data processing. The determination of rock hardness use Gardner’s relationship formula. Based on interpretation, there are three layers lithology structure with P wave propagation velocity of 200-1800 m/s and its density of 1.17–1.93 gr/cc. Based on velocity analysis we determine the velocity of first layer is 200-700 m/s, second layer 700-1500 m/s, and third layer 1500-1800 m/s. The subsurface hardness lithology consists of top soil, sands and unsaturated pebble (1.17–1.59 gr/cc) with the depth 2–4 meters in the first layer, saturatedsands, saturated pebble, and alluvium (1.59–1.93 gr/cc) with the depth 9.5–11.5 meters in the second layer, and clay and sands (1.93–2.02 gr/cc) with the depth of 5.5–6 meters in the third layer. The rock hardness is located at the depth betwen 12 – 20 meters.
Identifikasi Bidang Gelincir Pemicu Bencana Tanah Longsor Dengan Metode Resistivitas 2 Dimensi Di Desa Pablengan Kecamatan Matesih Kabupaten Karanganyar Darsono D; Bambang Nurlaksito; Budi Legowo
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.v2i02.1292

Abstract

Investigation of landslide slip surface has been conducted at Salaman Sub village, Pablengan Village, Matesih District, Karanganyar Regency, Central Java Province by using dipole-dipole array geoelectrical resistivity method. Data processing were using Res2Dinv version 3.45 (semi demo version) software. The interpretation result showed that at the research area was found lithology consist i.e. clay, wet clay, sandy clay until claysand, sand until breccia. The slip surface is a wet clay layer with resistivity value range from 19.3 Ω m to 36.6 Ω m, for one section was found with depth of 1.7 meter until 17 meters, and for two section was found with depth of 8.9 until 16.4 meters.
Analisis Petrografi Fasa Molybdenum (Mo) dari Oksida Primer Fe2O3 Deposit Bontocani dengan Teknik X-Ray Mapping dan Difraksi Sinar-X Subaer S; Nurhayati N; Nurhasmi N; Nurfadillah N
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 4, No 02 (2014): October
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v4i02.4976

Abstract

A researh related to petrogaphy analysis of molybdenum (Mo) has been conducted. The main objective of this study is to get quantitative information about the composotion of molybdenum (Mo) as a minor phase of primer mineral Fe2O3 deposited at Bontocani, District of Bone South Sulawesi. The petrography analysis was performed on 10 samples by means of Tescan Vega3SB Scanning Electron Microscopy (SEM) coupled with Bruker X-Ray Mapping and Energy Dispersive Spectroscopy (EDS). Crystallinity level and chemical composition(phase) mineral constituent were performed by using MiniFlexII X-Ray Diifraction (XRD). The petrography analysis in the form of elemental mapping show the position of Mo along with Fe, S and other elements. The XRD analysis showed that that the Mo mineral of Bontocani deposit is found in the form of pure Mo element with a concentration of 0.2 – 8.0 wt%, compound of Fe17(Mo3)0.1 and Fe2(MoO4)3 with a concentration of 2.04 wt% and 14.0 wt%.
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.
Analisis Bidang Longsor Menggunakan Pendekatan Terpadu Geolistrik, Geoteknik Dan Geokomputer di Negeri Lima Ambon Matheus Souisa; Lilik Hendrajaya; Gunawan Handayani
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 8, No 1 (2018): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v8i1.15482

Abstract

Telah digunakan banyak metode untuk mengkaji permasalahan longsor dari sudut pandangan pendekatan satu-disiplin, interdisiplin maupun multidisiplin. Beberapa metode sedang dikembangkan untuk dipadukan dalam investigasi longsor selama dekade terakhir ini, fokus studi diarahkan menggunakan pendekatan investigasi multidisiplin seperti survei geolistrik, geoteknik dan geokomputasi untuk menentukan potensi longsor sehingga dapat meminimalisir bencana longsor. Hasil kajian memberikan bidang gelincir terletak pada kelompok resistivitas menengah dengan jenis pasir atau pasir lempungan yang menindih kelompok resistivitas tinggi yang berupa batulempung keras (bedrock). Berdasarkan nilai faktor keamanan lereng, bidang gelincir ini berada pada keadaan kurang stabil. Sedangkan penerapan geokomputasi menunjukkan lokasi kajian ditafsirkan berada dalam zona bahaya yang tinggi sehingga sangat berpotensi adanya longsor susulan. Dari hasil kajian terpadu, lokasi kajian masih dalam kondisi tidak aman dan bisa terjadi longsor susulan jika dipicu oleh faktor luar. Untuk meminimalisir longsor susulan dengan menurunkan muka air tanah adalah menggunakan model tol air dengan memanfaatkan sungai-sungai kecil/besar yang terdapat di bawah lereng/tebing untuk dapat dialirkan air pada musim hujan
Magnetite (Fe3O4) Nanoparticle Synthesis using Silica (SiO2) Template and Magnetic Properties Characterisation Suryani Taib; Edi Suharyadi
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.v5i01.256

Abstract

Nanoparticles of magnetite (Fe3O4) have been successfully synthesized by coprecipitation method by mixing FeSO4.7H2O and FeCl3.6H2O with the addition of 10% NH4OH as kopresipitan. Then, functionalized Fe3O4  concentration variation silica (SiO2) 5%, 10%, 15%, 20%, 30% and 50%. Particle size and magnetic properties of Fe3O4 nanoparticles were tested by X-Ray Diffraction (XRD) and Vibrating Sample Magnetometer (VSM). XRD results showed the addition of silica is not found new phases when added SiO2that serves as a template. The particle size of Fe3O4 nanoparticles obtained 14.23 nm, while the Fe3O4nanoparticles with the addition of a concentration of 5% and 20% respectively SiO215.45 nm and 16.37 nm. VSM results show the value of saturation magnetization and remanent magnetization decreased as more silica concentration, and increased coercivity field. Test Results of Fourier Transform Infra Red (FTIR) obtained new peaks which indicate that the functionalization process Fe3O4 with silica has been successfully carried out.
Analisa Cekungan Air Tanah Dalam di Bagian Barat Kabupaten Grobogan, Jawa Tengah Sorja Koesuma
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 8, No 1 (2018): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v8i1.19816

Abstract

Penelitian ini menganalisa kedalaman air tanah dalam dengan mengunakan survai geolistrik yang terletak di sisi barat Kabupaten Grobogan, Jawa Tengah, Indonesia. Terdapat empat lokasi survai yaitu Desa Brabo dan Desa Padang (Kecamatan Tanggungharjo), Desa Deras dan Desa Padas (Kecamatan Kedungjati). Konfigurasi Schlumberger digunakan dalam survai geolistrik ini dengan bentangan elektroda arus sampai dengan 600 meter. Diperoleh kedalaman potensi air tanah dalam pada kedalaman antara 50 – 105 meter. Hasil ini sesuai dengan peta cekungan air tanah Kabupaten Grobongan.
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.

Page 8 of 27 | Total Record : 267

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