INDONESIAN JOURNAL OF APPLIED 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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351 Documents
<![CDATA[Identifikasi Situs Candi Bukit Carang, Karanganyar Menggunakan Metode Geolistrik Tahanan Jenis Konfigurasi Dipol-Dipol ]]>
Diah Sri Jayanti; Darsono D; Budi Legowo
<![CDATA[ INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 2, No 02 (2012): October ]]>
Publisher : <![CDATA[Department of Physics, Sebelas Maret University ]]>
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DOI: 10.13057/ijap.v2i02.1290
<![CDATA[Identification of temple sites have been performed on the Bukit Carang region atAnggrasmanis, Jenawi, Karanganyar, Central Javausing the geoelectricity resistivitymeasurement with a dipoles configuration method. This method can determine buried sites around the site groundwork. Software Surfer ver 8.0 and Res2dinv ver 3.30b are used to analyze the mapping data and the sounding data, respectively. This research foundelevenanomalies structured andesite’s rock with resistivity of935-1511 Ωmwhich is considered as temple sites.]]>
<![CDATA[Adsorpsi Logam Tembaga (Cu), Mangan (Mn) dan Nikel (Ni) dalam Artificial Limbah Cair dengan Menggunakan Nanopartikel Magnetit (Fe3O4) ]]>
Diah Mahmudah; Nurhidayati Sakinah; Edi Suharyadi
<![CDATA[ INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 4, No 02 (2014): October ]]>
Publisher : <![CDATA[Department of Physics, Sebelas Maret University ]]>
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DOI: 10.13057/ijap.v4i02.4974
<![CDATA[Magnetite (Fe3O4) nanoparticles have been successfully synthesized using co-precipitation method and have been used for removing Cu, Mn and Ni metals ions from artificial wastewater. Ability of removing metal ions with Fe3O4 against pH, adsorbent particle size, readsorption and by addition of Polyethylene Glycol (PEG-4000) as coating agent of adsorbent have been studied. The adsorption process was found to be pH-dependent. Maximum adsorption at pH 12 for most of the metal ions with percent of sorption Cu 99.79%, Ni 69.83% and Mn 44.53%. Using adsorbent with 12 nm of particles size, readsorption process and by addition of Polyethylene Glycol (PEG-4000) as coating agent of adsorbent also made the ability of removing metals ions increasing. Preliminary results indicate that magnetite nanoparticles may be used as an adsorbent for removal of Cu, Mn and Ni from wastewater.]]>
<![CDATA[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 ]]>
<![CDATA[Wida Yanti]]>;
<![CDATA[Asih Melati]]>
<![CDATA[ INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 7, No 1 (2017): April ]]>
Publisher : <![CDATA[Department of Physics, Sebelas Maret University ]]>
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DOI: 10.13057/ijap.v7i1.3892
<![CDATA[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]]>
<![CDATA[Analisis Seismisitas Dari Kepualuan Mentawai Pada Periode 2010-2016 ]]>
<![CDATA[Muhammad Ifanun Naim]]>;
<![CDATA[Supriyadi -]]>;
<![CDATA[Suharto Linuwih]]>
<![CDATA[ INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 8, No 1 (2018): April ]]>
Publisher : <![CDATA[Department of Physics, Sebelas Maret University ]]>
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DOI: 10.13057/ijap.v8i1.15274
<![CDATA[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]]>
<![CDATA[Purity Testing of Cultivar Melon DNA Level (Cucumis melo L.) “Gama Melon Basket” using Surface Plasmon Resonance (SPR) Based on Silver Nanoparticle ]]>
<![CDATA[Thoyibi T]]>;
<![CDATA[Muhammad Arifin]]>;
<![CDATA[Kamsul Abraha]]>
<![CDATA[ INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 5, No 01 (2015): April ]]>
Publisher : <![CDATA[Department of Physics, Sebelas Maret University ]]>
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DOI: 10.13057/ijap.v5i01.254
<![CDATA[DNA level of purity has been tested by observing the phenomenon of surface plasmon resonance (SPR) in silver film + silver (Ag) nanoparticles system as DNA sensor using Kretschmann configuration. Surface plasmon resonance (SPR) phenomenon observed in the resonance condition of reflectance spectrum vary with incident angle of laser, beamed toward prism. System is built as a model for DNA purity test instrument that give higher accuracy. DNA purity testing was conducted by placing DNA layer with various ratio on prism in order to get the angle shift value in each sample as a result. Purity level of DNA indicates the DNA quality based on the ratio between the amount of pure DNA compared to the amount of impurity materials (protein). After the deposition of DNA in ratio 1,774, 1,838 and 1,916 SPR angle shifted , and respectively. Characteristic differences of DNA with different purity (ratio) are shown by reflectance value that is getting higher at a smaller ratio, indicates that in the higher DNA ratio the angle shift is getting smaller. SPR angle shift which is occurred before and after DNA deposition shows the sensitivity of SPR as DNA sensor.]]>
<![CDATA[Perhitungan Nilai Percepatan Tanah Maksimum Berdasar Rekaman Sinyal Accelerograph di Stasiun Pengukuran UNSO Surakarta ]]>
<![CDATA[Ari Sungkowo]]>
<![CDATA[ INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 8, No 1 (2018): April ]]>
Publisher : <![CDATA[Department of Physics, Sebelas Maret University ]]>
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DOI: 10.13057/ijap.v8i1.14326
<![CDATA[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.]]>
<![CDATA[Calculation of the Scattering Amplitude of A Nucleus in the Presence of the Yukawa Potential ]]>
<![CDATA[L. Nickhah]]>;
<![CDATA[A. A. Rajabi]]>;
<![CDATA[F. Pakdel]]>
<![CDATA[ INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 5, No 02 (2015): October ]]>
Publisher : <![CDATA[Department of Physics, Sebelas Maret University ]]>
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DOI: 10.13057/ijap.v5i02.288
<![CDATA[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. ]]>
<![CDATA[ZCO/CNT Composites Coated on Silver Substrates as Symmetric Supercapacitor and their Dielectrics Characterization at Various Frequencies ]]>
Markus Diantoro; Lisa Ainun Najihah; Ahmad Taufiq; Abdulloh Fuad; Arif Hidayat; Subakti S
<![CDATA[ INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 4, No 01 (2014): April ]]>
Publisher : <![CDATA[Department of Physics, Sebelas Maret University ]]>
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DOI: 10.13057/ijap.v4i01.1176
<![CDATA[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.]]>
<![CDATA[Pengukuran Variabilitas Co2 dan Analisis Dampak Perubahan Iklim (Studi Kasus: Semarang) ]]>
R Gernowo; A Kusworo; Z Arifin
<![CDATA[ INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 3, No 02 (2013): October ]]>
Publisher : <![CDATA[Department of Physics, Sebelas Maret University ]]>
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DOI: 10.13057/ijap.v3i02.1248
<![CDATA[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.]]>
<![CDATA[Analisis Energi Osilator Harmonik Menggunakan Metode Path Integral Hypergeometry dan Operator ]]>
Fuzi Marati Sholihah; Suparmi S; Viska Inda Variani
<![CDATA[ INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 2, No 02 (2012): October ]]>
Publisher : <![CDATA[Department of Physics, Sebelas Maret University ]]>
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DOI: 10.13057/ijap.v2i02.1280
<![CDATA[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)]]>
