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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 239 Documents
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Analisis Seismisitas Dari Kepualuan Mentawai Pada Periode 2010-2016 Naim, Muhammad Ifanun; -, Supriyadi; Linuwih, Suharto
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.v8i1.15274

Abstract

Kepulauan Mentawai merupakan bagian dari Pulau Sumatera yang terdapat dua lempeng tektonik yang aktif. Kedua lempeng tektonik tersebut yaitu lempeng Indo-Australi menunjam ke arah lempeng Eurasia dan menimbulkan zona subduksi Sumatera yang banyak menimbulkan kejadian gempabumi. Penelitian ini bertujuan untuk mengetahui sesar gempa ditinjau dari besarnya magnitudo dengan menggunakan metode focal mechanism studi kasus gempa pada Kepulauan Mentawai periode tahun 2010-2016. Metode focal mechanism merupakan metode untuk menentukan bidang sesar yang dihasilkan oleh kejadian gempa dengan memanfaatkan gerak awal gelombang P. Gerak awal gelombang P berupa gaya kompresi ataupun dilatasi. Selain dengan metode focal mechanism, dalam penelitian ini juga dibuat cross section gempa dengan luasan daerah tertentu yang bertujuan untuk mengetahui indikasi gempa yang terjadi merupakan gempa pada daerah lempeng tektonik. Hasil solusi focal mechanism untuk data gempa bermagnitudo ≥ 6.0 Mw rata-rata gempa menghasilkan sesar naik (thrust/reverse) dengan beberapa nilai kemiringan (dip) tertentu. Sedangkan hasil dari cross section gempa menunjukkan sebaran hiposenter gempa yang cenderung menunjam. Kejadian ini adalah indikasi bahwa lokasi gempa-gempa tersebut merupakan tempat lempeng yang menunjam dan ketika dihubungkan dengan hasil focal mechanism juga menunjukkan kecenderungan sesarnya adalah sesar naik dengan beberapa nilai kemiringan (dip) tertentu
Perhitungan Nilai Percepatan Tanah Maksimum Berdasar Rekaman Sinyal Accelerograph di Stasiun Pengukuran UNSO Surakarta Sungkowo, Ari
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.v8i1.14326

Abstract

Rekaman-rekaman yang dihasilkan oleh strong motion accelerograph merupakan hal yang penting dalam teknik kegempaan sebagai dasar untuk karaterisasi getaran tanah yang digunakan dalam desain seismik. Telah dilakukan perhitungan nilai percepatan tanah maksimum (PGA) menggunakan data rekaman sinyal yang terekam oleh sensor Strong Motion Accelerograph di stasiun pengukuran UNSO yang terpasang di laboratorium hidrologi fakultas teknik sipil Universitas Sebelas Maret Surakarta. Sensor yang terpasang bertipe TSA 100 yang diproduksi oleh Metrozet USA. Rekaman gempa yang digunakan dalam perhitungan ini adalah rekaman gempabumi tanggal 03 Agustus 2017 dengan magitudo 5.3 SR, epicenter gempabumi di BaratDaya Cilacap Jawa Tengah. PGA dihitung dengan metode absolut yaitu menggunakan amplitudo maksimum sinyal yang terekam di sensor. Software yang digunakan untuk menghitung PGA adalah software dadiSP. Nilai PGA pada masing -masing hasil perhitungan adalah 0.307 Gal komponen N-S, 0.302 Gal komponen E-W dan 0.133 Gal komponen U-D. Intensitas gempa di stasiun pengukuran UNSO adalah I MMI. Hasil ini menunjukan sensor UNSO dapat dipergunakan untuk mengetahui nilai PGA dari suatu dari suatu gempabumi.
Calculation of the Scattering Amplitude of A Nucleus in the Presence of the Yukawa Potential Nickhah, L.; Rajabi, A. A.; Pakdel, F.
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. 
ZCO/CNT Composites Coated on Silver Substrates as Symmetric Supercapacitor and their Dielectrics Characterization at Various Frequencies Diantoro, Markus; Najihah, Lisa Ainun; Taufiq, Ahmad; Fuad, Abdulloh; Hidayat, Arif; S, Subakti
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.v4i01.1176

Abstract

Supercapacitor is a high power density energy storage device which complements the lack of batteries and conventional capacitors. One material which has a great potential in the manufacture of composite supercapacitor is spinel ZnCo2O4/carbon nano tube and abreviated in the later case as ZCO/CNT. Composition variations in ZCO/CNT composites is expected to the performance of supercapacitor especially the dielectric properties and specific capacitance. Inthis study the composite ZCO/CNT was made from raw materials of ZCO nano crystal which was prepared from previous research on which employing sonochemistry technic, carbon nano tube, and 1-methil 2 pyrolidine. A screen printing method was used in this experiment to deposite the composite on silver substrates. The separator in between of two identical composite structures was prepared from isotactic polypropylene. We used KOH 6 M which was implemented as electrolyte of the composites. Characterization of composite structures has been performed using X-RD, while the morphology characterization using SEM. It was found that the dielectric supercapacitor increase by increasing of mass fraction of ZCO in the composite. Thehighest dielectric constant is reached at 1.89 x 106 and the specific capacitance of 81 F/g for 3:1mass ratio of ZCO : CNT at 100 Hz.
Pengukuran Variabilitas Co2 dan Analisis Dampak Perubahan Iklim (Studi Kasus: Semarang) Gernowo, R; Kusworo, A; Arifin, Z
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.v3i02.1248

Abstract

The increasing emission of CO2 in the air has led to the need to measure the gas content on a regular basis. The gas accumulates slowly in the layers of Earth's atmosphere. However, this need is constrained by a number of issues that later affect the accuracy of the mapping which includes the continuously circulating gas in the atmosphere. Researchers suspect that the amount of CO2 and other gases is getting higher due to the many additional human produced carbon emissions from burning fossil fuels. In this study climate change analysis was conducted in Semarang. The study looks deeper in the CO2 variability data from referencestudies and performs analysis of climate data from rainfall and CO2 measurement data of Semarang.
Analisis Energi Osilator Harmonik Menggunakan Metode Path Integral Hypergeometry dan Operator Sholihah, Fuzi Marati; S, Suparmi; Variani, Viska Inda
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.v2i02.1280

Abstract

Solution of the harmonic oscillator equation has a goal to get the energy levels of particles moving harmonic. The energy spectrums of one dimensional harmonic oscillator are analyzed by 3 methods: path integral, hypergeometry and operator. Analysis of the energy spectrum by path integral method is examined with Schrodinger equation. Analysis of the energy spectrum by operator method is examined by Hamiltonian in operator. Analysis of harmonic oscillator energy by 3 methods: path integral, hypergeometry and operator are getting same results ? = ℏ? (? + 1 2)
Identifikasi Akuifer Dangkal dan Akuifer Dalam dengan Metode Geolistrik (Kasus: Di Kecamatan Masaran) Darsono, D
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.v6i01.1798

Abstract

Identification of aquifer layer location has been done using Schlumberger configuration of geoelectric resistivity methods in Masaran District. Data collection was performed using resistivity meter OYO Mc-el-ohm series 2119c having a length of current electrode (AB / 2) from 1.5 m to 350 meters. Data processing was done using software IP2win. The purpose of this study was to identify the location of confined aquifer and unconfined aquifer. The result showed that litology of aquifer layers were detected as clayed sand, sands and gravel sands. The depth of confined aquifer was detected for TS1 (4.52 meters to 8.57 meters and 22.4 meters to 34 meters), TS2 (8.84 meters to 20.9 meters), TS3 (2.87 meters to 10 meters and 13.3 meters to 41.5 meters), TS4 (20.09 meters to 6.71 meters and 17.3 meters to 36.4 meters) and TS5 (6.3 meters to 25 meters). The thickest layer of confined aquifer was TS3. While, the depth of unconfined aquifer was detected for TS1 (68.1 meters to 78 meters and 94.3 meters to 115 meters), TS2 (36.9 meters to 93.4 meters and 103 meters to 134 meters), TS3 (72.8 meters to 101 meters), TS4 (46.3 meters to 67.5 meters and 82.1 meters to 98 meters), and TS5 (50.1 meters to 93.5 meters and 99.7 meters to 111 meters). The layer thickness of unconfined aquifer were detected for TS1 (30.6 meters), TS2 (86.7 meters), TS3 (28.4 meters), TS4 (37 meters), and TS5 (55 meters). The layer thickness of unconfined aquifer that has the thickest was TS2.
Pengaruh Ketebalan Elektroda Kerja TiO2 Transparan terhadap Kinerja Dye Sensitized Solar Cell (DSSC) sebagai Aplikasi Solar Window Dewi, Nadya Aruma; Nurosyid, Fahru; Supriyanto, Agus; Suryana, Risa
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.v6i02.1362

Abstract

 Senditized Dye Solar Cells (DSSC) consist of photoelectrode, dye, electrolyte and counter electrode which is one of the photochemical electric cells. In this article will discuss the influence of the thickness of the electrode on the electrical properties. Electrodes made by screen printing method. Screen by type T-49. TiO2 deposited on the FTO variation of the number of layers to obtain a thickness of 1, 2, 3 and 4. DSSC tested thickness by Screen Electron Microscopy (SEM), absorbance test by UV Visible Lambda 25 and characterization of current and voltage test by Keithley Measurenment 2602A. The test results showed the thickness of the TiO2 electrode thickness (1.5 ± 0.2) μm, (2.9 ± 0.5) μm, (3.5 ± 0.6) μm, and (4.5 ± 0.8 ) μm. Based on the test results absorbance maximum value contained in thickness (4.5 ± 0.8) μm having a dye adsorbed at most and have the highest efficiency  2.41%. 
Pengaruh temperatur sintering terhadap struktur dan sifat magnetik La3+ - barium nanoferit sebagai penyerap gelombang mikro Hasanah, Siti Uswatun; Widanarto, Wahyu; Sunardi, Sunardi
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.v7i2.14978

Abstract

Seri La3+-barium nanoferit telah dibuat melalui metode solid-state reaction termodifikasi tanpa sintering dan dengan sintering pada temperatur 600, 800 dan 1000 °C. Pengaruh temperatur sintering terhadap komposisi, struktur, ukuran kristal, sifat magnetik dan kemampuan menyerap gelombang mikro dari La3+-barium nanoferit dikarakterisasi masing-masing menggunakan XRD, VSM dan VNA. Hasil karakterisasi menunjukkan bahwa La3+-barium nanoferit yang di-sintering pada 600 ºC mempunyai kemampuan menyerap gelombang mikro yang paling baik, dengan rata-rata nilai reflection loss sebesar -16,2165 dB pada frekuensi 10,86 GHz. Ferit terdiri dari tiga fasa kristal yaitu BaLa2Fe2O7, BaFe11.9O19, dan Fe21.33O32 dengan nilai Hc yang rendah 231,65 Tesla. Hal ini menunjukkan bahwa temperatur sintering sangat berpengaruh terhadap La3+-barium ferit sebagai penyerap gelombang mikro.
Effect of Guided Discovery learning model in mastering of Force and Motion subject P, Parno
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.

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