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Journal of Aceh Physics Society
Published by Universitas Syiah Kuala
ISSN : -     EISSN : 23558229     DOI : -
Core Subject : Science,
Physics
Focus of Journal of Aceh Physics Society (JAcPS) provides a forum for original paper works that enhances understanding of physics and their application. Scope of Journal of Aceh Physics Society (JAcPS) paper related to the development of new experimental methods, visualization techniques, material physics, optic, laser and instrumentation in physics is an important part of this journal. Experience gained and lessons learned in building test facilities and in measuring and reducing test data are important aspect of any experimental work. Authors are encouraged to report this experience and to summarize the original data. Archival review paper, short communication, invited papers, discussion of previously published papers, and book reviews are regular feature of the journal, in addition to full-length article.
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Articles 6 Documents
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Search results for , issue "Volume 9, Number 2, May 2020" : 6 Documents clear
Cover dan Daftar Isi Volume 9 No 2 May 2020 COVER JAcPS
Journal of Aceh Physics Society Volume 9, Number 2, May 2020
Publisher : PSI-Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (19.61 KB)

Abstract

Berisi Cover depan dan belakang, daftar Isi, dan nama-nama editor dan reviewer pada volume 9 nomor 2 tahun 2020
Preparation of Activated Carbon from Tea Waste by NaOH Activation as A Supercapacitor Material Eldya Mossfika; Syukri Syukri; Hermansyah Aziz
Journal of Aceh Physics Society Volume 9, Number 2, May 2020
Publisher : PSI-Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jacps.v9i2.15905

Abstract

Karbon aktif dari ampas teh telah disintesis dan telah diuji sebagai elektroda superkapasitor. Pembuatan karbon aktif berdasarkan variasi rasio massa karbon dan aktivator NaOH yaitu 1:4, 1;5 % b/b yang diberi kode AC-4 dan AC-5. Sintesis elektroda karbon aktif di awali dengan proses pra-karbonisasi dan dilanjutkan dengan proses aktivasi kimia. Sampel di karbonisasi pada suhu 800 oC dengan laju kenaikan 50C/menit dalam kondisi gas inert (N2). Karbon aktif ampas teh dikarakterisasi dengan SAA (Surface Area Assessment). Sifat elektrokimia dan kinerja elektroda karbon aktif yang disintesis diukur menggunakan metode voltametri siklik dalam larutan elektrolit H2SO4 1M. Elektroda karbon aktif menunjukkan kapasitansi spesifik tertinggi pada sampel AC-4 yaitu 67 F/g dengan scan rate 1 mV/s dan luas permukaan spesifik 473 m2/g. Mengingat sifat elekrokimia yang menarik tersebut, dan banyaknya ampas teh yang mudah ditemukan disekitar kita maka elektroda karbon aktif ini berpotensi untuk bahan pembuatan superkapasitor elektrokimia skala besar di masa depan.Activated carbon from tea waste has been synthesized and has been tested as a supercapacitor electrode. Making activated carbon based on variations in the ratio of carbon mass and activator NaOH that is 1: 4, 1; 5%wt coded AC-4 and AC-5. Synthesis of activated carbon electrodes begins with the pre-carbonization process and is followed by a chemical activation process. Samples are carbonized at 800 oC with a rate of increase of 50C / min under inert gas (N2) conditions. Activated carbon of tea waste is characterized by SAA (Surface Area Assessment). The electrochemical properties and performance of the activated carbon electrode were measured using the cyclic voltammetry method in a H2SO41 M electrolyte solution. The activated carbon electrode showed the highspecific capacitance in the AC-4 sample of 67 F / g with a scan rate of 1 mV / s and surface area Specifically 473 m2 / g. Considering these interesting electrochemical properties, and the abundance of tea dregs that are easily found around us, this activated carbon electrode has the potential to be a material for making large-scale electrochemical supercapacitors in the future.Keywords:Limbah ampas teh, Aktivator, Kapasitansi spesifik, NaOH, Supekapasitor
Lattice Gas Automata Applications to Estimate Effective Porosity and Permeability Barrier Model of the Triangle with a Height Variation Halauddin Halauddin; Suhendra Suhendra; Muhammad Isa
Journal of Aceh Physics Society Volume 9, Number 2, May 2020
Publisher : PSI-Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jacps.v9i2.16056

Abstract

Penelitian ini bertujuan untuk menghitung porositas efektif (фeff) dan permeabilitas (k) menggunakan model segitiga dengan variasi tinggi yaitu 3, 4, 5, 6 dan 7 cm. Perhitungan porositas dan permeabilitas yang efektif dilakukan dengan menggunakan model Lattice Gas Automata (LGA), yang diimplementasikan dengan bahasa pemrograman Delphi 7.0. Untuk model segitiga penghalang dengan tinggi 3, 4, 5, 6 dan 7 cm, nilai porositas efektif dan permeabilitas, masing-masing: фeff (T1) = 0,1690, k (T1) = 0 , 001339 pixel2; фeff (T2) = 0,1841, k (T2) = 0,001904 pixel2; фeff (T3) = 0,1885, k (T3) = 0,001904 pixel2; фeff (T4) = 0,1938, k (T4) = 0001925 pixel2; dan фeff (T5) = 0,2053, k (T5) = 0,002400 pixel2. Dari hasil simulasi, diperoleh tinggi segitiga akan berpengaruh signifikan terhadap nilai porositas efektif dan permeabilitas. Pada segitiga lebih tinggi, menyebabkan tabrakan model aliran fluida LGA mengalami lebih banyak hambatan untuk penghalang, sehingga porositas efektif dan permeabilitas menurun. Sebaliknya, jika segitiga lebih rendah, menyebabkan tabrakan model aliran fluida LGA mengalami lebih sedikit hambatan untuk penghalang, sehingga porositas efektif dan permeabilitas meningkat.This  research purposed to calculate the effective porosity (feff) and permeability (k) using the barrier model of the triangle with a high varying are 3, 4, 5, 6 and 7 cm. Effective porosity and permeability calculations performed using the model Lattice Gas Automata (LGA), which is implemented with Delphi 7.0 programming language. For model the barrier triangle with a high of 3, 4, 5, 6 and 7 cm, the value of effective porosity and permeability, respectively: feff(T1)=0,1690, k(T1)=0,001339 pixel2; feff(T2)=0,1841, k(T2)=0,001904 pixel2; feff(T3)=0,1885, k(T3)=0,001904 pixel2; feff(T4)=0,1938, k(T4)= 0001925 pixel2; and feff(T5)=0,2053, k(T5)=0,002400 pixel2. From the simulation results, obtained by the high of the triangle will be a significant effect on the value of effective porosity and permeability. If the triangle highest, causing the collision of fluid flow models LGA experience more obstacles to the barrier, so that the effective porosity and permeability decrease. Conversely, if the triangle lower, causing the collision of fluid flow models LGA experience less obstacles to the barrier, so that the effective porosity and permeability increases.Keywords: Effective porosity, permeability, model triangle, model LGA 
Interpretation Geothermal Energy Using Geoelectric Method with Dipole-Dipole in Pawan Village, Rokan Hulu Regency Riski Febriani; Juandi M; Nur Islami
Journal of Aceh Physics Society Volume 9, Number 2, May 2020
Publisher : PSI-Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jacps.v9i2.15304

Abstract

Pawan, sebuah kabupaten yang terletak di cekungan busur belakang Sumatera, memiliki potensi yang ditunjukkan oleh penampilan mata air panas. Penelitian ini dilakukan dengan konfigurasi Dipol-dipol. Metode Geolistrik dilakukan dalam lima jalur dengan panjang antara 78 - 108 m. Panjang lintasan bervariasi karena lokasi penelitian terdapat banyak bangunan yang menjadi tempat wisata. Hasil penelitian menunjukkan bahwa struktur lapisan bawah permukaan dalam manifestasi panas bumi Pawan terdiri dari Lanau, Sandstone dan Meta Sedimen. Jalur 1 ke Jalur 4 memperoleh distribusi manifestasi air panas pada kedalaman sekitar 2,61 - 5,12 m dengan nilai resistivitas 2,6 - 10,4 μm yang ditemukan di lapisan lanau dari lumpur basah yang lembut. Pola distribusi manifestasi air panas di wilayah studi adalah aliran luapan dimana wilayah penelitian ini memiliki zona patahan yang mengendalikan manifestasi panas bumi dan arah aliran ini adalah arah barat aliran sungai. Pawan, a district located in the Sumatera back arc basin, possesses a potential indicated by appearance of hot springs. This research was carried out using the Dipole-dipole configuration. Geoelectric method was done in five lines with length between of 78 to 108 m. The length of the track varies because of the location of the study there are many buildings that become tourist attractions. Research result showed that structure of the subsurface layer in Pawan geothermal manifestation consist of Lanau, Sandstone and Meta Sediments. Line 1 to Line 4 obtained the distribution of hot water manifestations at a depth of about 2.61 to 5.12 m with resistivity values of 2.6 to 10.4 μm found in the silt layer of soft wet silt. The distribution pattern of the manifestation of hot water in the study area is an outflow flow where this research area has a fault zone that controls the manifestation of geothermal heat and the direction of this flow is the direction of the west direction of the river flow.Keywords: Dipole-dipole, Geoelectric, Resistivity, Panas Bumi, Pawan
The Computation of Residual and Regional Anomaly of Gravity Method Data By Polynomial Filter Using Microsoft Excel Muhajirin Muhajirin; Nazli Ismail; Bukhari Bukhari
Journal of Aceh Physics Society Volume 9, Number 2, May 2020
Publisher : PSI-Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jacps.v9i2.15745

Abstract

Eksplorasi metode gravitasi umumnya dilakukan untuk mencari objek di bawah permukaan yang dangkal sehingga perlu dilakukan pemisahan anomali residual dan regional dari anomali Bouguer lengkap. Perhitungan anomali residual biasanya menggunakan software khusus untuk pengolahan data geofisika yang berlisensi atau algoritma dengan bahasa pemrograman, sedangkan program Microsoft Excel pada PC dan notebook biasa digunakan untuk perhitungan polinomial pada pengolahan data statistik. Penelitian ini memperkenalkan cara menghitung anomali residual menggunakan Microsoft Excel dengan filter polinomial. Hasil validasi yang menggunakan model sintetik menunjukkan bahwa perhitungan tersebut dapat diaplikasikan pada data metode gravitasi. Aplikasi pada data lapangan diperoleh bahwa anomali residual berfrekuensi tinggi, sedangkan anomali regional berfrekuensi rendah. Nilai anomali regional dipengaruhi oleh trendline anomali Bouguer lengkap dalam domain jarak. Hasil ini relatif sama dengan hasil perhitungan software lainnya. Gravity method exploration was generally conducted to seek the object in shallow underground so that required residual and regional anomaly separation of complete Bouguer anomaly. The residual anomaly separation was usually used by the special softwares for geophysics that require licency or algorithm by programming language, however the program of Microsoft Excel in the PC or notebook was usually applied to compute the polynomial filter for statistic data analysis. This research introduces how to compute residual anomaly using Microsoft Excel through polynomial filter. The validation result of sintetic model shows that the computation using Microsoft Excel can be applied to gravity method data. The application of field data was obtained that residual anomaly has high frecuency, whereas residual anomaly has low frecuency. The value of regional anomaly was influenced by trendline of complete Bouguer anomaly in distance domain. This result relatively equals to the result of other softwares. Keywords: gravity method, residual anomaly, regional anomaly, polynomial filter, Microsoft Excel
The Enhancement and Study of Sintering Time Effect Toward Content of Fe and Ti Compounds in Mineral Sand Fauzi Fauzi; Zulfalina Zulfalina
Journal of Aceh Physics Society Volume 9, Number 2, May 2020
Publisher : PSI-Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jacps.v9i2.16614

Abstract

Pasir mineral merupakan salah satu mineral endapan (sedimen) dengan ukuran butir 0,074-5 mm, ukuran kasar (5–3 mm) dan halus (1 mm), ciri fisik dari pasir mineral ini diantaranya berwarna hitam dan cenderung tertarik oleh magnet. Berdasarkan beberapa penelitian yang telah dilakukan sebelumnya didapatkan bahwa kandungan utama dari pasir mineral berupa mineral ilmenit (FeTiO3), hematite (Fe2 - O3), dan magnetit (Fe3O4). Oleh karena itu maka pasir mineral ini sangat potensial untuk menghasilkan logam Fe, Ti, besi oksida dan pigmen titanium oksida. Dalam penelitian ini pengayaan kandungan besi dilakukan dengan metode separasi magnetik kemudian dikarakterisasi menggunakan XRF. Selanjutnya sampel tersebut disinter pada suhu 800oC, dengan variasi waktu penahanan selama 2, 4 dan 6 jam dan di karakterisasi menggunakan XRD, dimana hasilnya dianalisis dengan metode GSAS. Hasil pengujian XRF menunjukkan bahwa pasir mineral murni (bahan mentah) mempunyai kandungan Fe dan Ti masing–masing 14,38 dan 2,80% (%berat), sedangkan setelah separasi magnetik kandungan Fe dan Ti meningkat masing–masing menjadi 83,51 dan 7,25% (%berat). Hasil analisis GSAS menunjukkan bahwa waktu sintering berpengaruh terhadap fraksi berat Fe dan Ti, ini ditunjukkan senyawa Fe3O4 menurun dari 81,85 menjadi 77,76% dan Fe2O3 dari 11,44 menjadi 3,41%, sementara FeTiO3 meningkat dengan bertambahnya waktu sintering dari 6,72 menjadi 18,83%. The mineral sand is one of the mineral sediments with grain size of 0.074 – 5 mm, coarse size (5–3 mm) and fine (1 mm). The physical characteristics of this mineral sand are black color and tend to be attracted by magnets. Based on several studies, the main content of mineral sand is ilmenite (FeTiO3), hematite (Fe2O3), and magnetite (Fe3O4). Therefore mineral sand is very potential to produce Fe, Ti, iron oxide and titanium oxide pigments. In this study, the iron contents from raw materials were enhanced by magnetic separation method, and then the samples were characterized using XRF. Therefore they were sintered at temperature 800oC and variation of holding times 2, 4 and 6 h. The characterization of sample used XRD, where this result is analyzed using GSAS method. The XRF results showed that pure mineral sand (raw materials), has Fe and Ti contents of 14.38 and 2.80% (%weight), whereas after magnetic separation, the Fe and Ti contents increased to 83.51 and 7.25%, respectively. The analysis result of GSAS showed that the sintering time affected the weight fraction of Fe and Ti. These indicated that Fe3O4 decreased from 81.85 to 77.76% and Fe2O3 from 11.44 to 3.41%, while FeTiO3 raise with increasing of sintering time from 6.72 to 18.83%. Keywords: Enhancement, sintering time, compound content, mineral sand, GSAS

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