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Journal of Aceh Physics Society

JAcPS
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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 7 Documents

Search results for , issue "Volume 8, Number 1, January 2019" : 7 Documents clear

Geological Structure Analysis of Satellit Gravity Data in Oil and Gas Prospect Area of West Aceh-Indonesia Dian Darisma; Marwan Marwan; Nazli Ismail
Journal of Aceh Physics Society Volume 8, Number 1, January 2019
Publisher : PSI-Aceh

Estimation of the subsurface geological structures in oil and gas prospect area of West Aceh has been done by utilizing gravity field anomaly of satellite gravity data. This research aim to analyze satellite gravity data in order to get geological features which is include deep and shallow structure or fault around oil and gas prospect area in West Aceh. The satellite gravity data is originally provided as Free Air Anomaly and should be corrected to get Complete Bouguer Anomaly (CBA). Furthermore, CBA was transformed into a horizontal plane and corrected from regional anomalous effects to obtain residual anomaly, horizontal and vertical derivative. From CBA, the gravity anomaly show good correlation with geological boundaries on different rock formation and the anomaly is decrease from NE-SW. Residual anomaly also gives same information with CBA but this anomaly focus on shallow structure. Furthermore, horizontal derivative and vertical derivative also show good correlation with geological structure or fault but in some areas the anomaly related with deep structure cannot be seen on the surface or geological map. Despite the result cannot correlate directly with oil and gas prospect area, satellite gravity can be used to identify gravity anomaly and also fault that related with hydrocarbon anomaly area

The Potential of Red Dragon Fruit Skin (Hylocereanea Polyrhizus) as a Corrosion Inhibitor Beti Nanda Sari; Evi Yufita; Zulfalina Zulfalina
Journal of Aceh Physics Society Volume 8, Number 1, January 2019
Publisher : PSI-Aceh

Penelitian tentang pengaruh ekstrak kulit buah naga merah (Hylocereus Polyrhizus) sebagai bahan inhibitor terhadap laju korosi baja plat hitam (Base Plate) A36 dengan menggunakan metode weight loss telah dilakukan. Kulit buah naga merah berpotensi sebagai bahan inhibitor organik karena mengandung senyawa antioksidan diantaranya flavonoid dan tanin. Penelitian ini bertujuan untuk mengetahui pengaruh variasi volume larutan inhibitor yaitu 10, 20 dan 30 ml terhadap perubahan massa sampel, selain itu juga ingin mengetahui pengaruh variasi volume larutan inhibitor terhadap nilai laju korosi dan efesiensi inhibisi pada sampel baja A36. Berdasarkan hasil penelitian, perubahan massa didapat dari selisih massa sebelum dan sesudah perendaman dalam larutan inhibitor, nilai perubahan massa maksimum pada volume 30 ml yaitu sebesar 0,073 g. Nilai laju korosi relatif untuk sampel yang dilapisi inhibitor akan semakin menurun, pada volume 30 ml yaitu sebesar 0,001 cm/tahun dengan nilai efisiensi sebesar 98%. Research on the effect of red dragon fruit peel extract (Hylocereus Polyrhizus) as an inhibitor material on the corrosion rate of A36 black plate steel using weight loss method has been carried out. Red dragon fruit skin potential as an organic inhibitor that is containing antioxidant compounds include flavonoids and tannins. This study aims to determine the effect of variations in inhibitor solution volume for 10, 20 and 30 ml on changes in sample mass, the effect of variation in inhibitor solution volume on corrosion rate value and inhibitor efficiency of A36 steel samples is also studied. Based on the results of the study, changes in mass were obtained from the difference in mass before and after immersion in an inhibitor solution, the maximum mass change value at a volume of 30 ml is equal to 0.073 g, while the value of the corrosion rate is relatively decreasing. At a volume of 30 ml, the corrosion rate is equal to 0.001 cm/year with an efficiency value of 98%. Keywords: Korosi, Antioksidan, Kulit, Buah Naga Merah, efisiensi

Fault Mapping in Weh Island based on Fault Fracture Density Method (FFD) Muhammad Yanis; Nazli Ismail; Laura Vadzla Hermansyah; Muhammad Nanda; Faisal Abdullah
Journal of Aceh Physics Society Volume 8, Number 1, January 2019
Publisher : PSI-Aceh

Pulau Weh merupakan pulau vulkanik yang dilalui jalur sesar aktif the Great Sumatran Fault. Keberadaan jalur sesar aktif pada suatu kawasan berimplikasi pada ancaman bahaya gempa bumi. Kami telah menggunakan data Digital Elevation Model (DEM) dari Shuttle Radar Topography Mission (SRTM) untuk pemetaan jalur-jalur sesar di Pulau Weh. Data DEM yang diproduksi oleh SRTM diekstrak menjadi hillshade dengan memberikan variasi sudut penyinaran matahari dan altitude 45o. Analisis topografi permukaan bumi memberikan penampakan gerusan-gerusan sesar dan rekahan. Selanjutnya kelurusan-kelurusan ditarik secara manual berdasarkan analisis sesar dan rekahan untuk tiap perbedaan sudut elevasi matahari pada hillshade. Kelurusan-kelurusan yang diperoleh dari tiap hillshade kemudian di-overlay. Berdasarkan jenisnya, kelurusan yang dianggap sebagai sesar dan rekahan diinterpretasi dengan memberikan grid 500 x 500 m. Dengan menggunakan metode FFD, didapatkan kelurusan-kelurusan yang berasosiasi dengan struktur atau merupakan refleksi gambaran topografi berupa kelurusan sungai, kelurusan lembah, struktur sesar maupun rekahan, kontak batuan dan kemunculan manifestasi panas bumi. Terdapat empat lokasi yang memiliki nilai anomali densitas kelurusan tinggi. Dominasi kelurusan yang terdapat di Pulau Weh yaitu Barat Laut-Tenggara. Arah dominan ini bersesuaian dengan arah Sesar Sumatera. Weh Island is a volcanic island crossed by the Great Sumatran Fault. Presence of such active fault may trigger seismic hazard on the island. We have applied Digital Elevation Model (DEM) from Shuttle Radar Topography Mission (SRTM) data to delineate fault distribution in Weh Island. The DEM data produced by SRTM were extracted as hillshade using variation of sun irradiation angels and altitude 45 o. Surface topographic analysis provided fractures and faults signatures on the study area. The faults and fractures lineament were drawn manually for each angle on the hillshades. The lineaments for each hillshade were overlaid. Using Fault Fracture Density (FFD) method we found lineaments associated as geological structures reflected from rivers, valleys, faults, fractures, rock contacts, and geothermal manifestations. There are four locations with high density lineaments on the island. The lineaments mostly directed in Northwest-Southeast which is same direction as the Great Sumatran Fault. Keywords: DEM, SRTM, geomorphology, the Great Sumatran Fault.

Reservoir Temperature Estimation By Using Geothermometry (Case Study on Geothermal Field Jaboi, Sabang) Eliyani Eliyani; Muhammad Isa; Khairi Khairi; Muhammad Rusdi
Journal of Aceh Physics Society Volume 8, Number 1, January 2019
Publisher : PSI-Aceh

Gunung api Leumo Matee dan Seumeuregoh, Jaboi Sabang memiliki potensi energi panas bumi sangat besar. Hal ini ditandai dengan adanya manifestasi yang muncul di permukaan seperti uap panas, fumarol dan sumber air panas. Oleh karena itu, perlu dikaji lebih dalam dan menyeluruh untuk mendapatkan informasi yang detail, terutama parameter suhu dan karakteristik batuan/mineral. Sebuah penelitian telah dilakukan untuk kajian geokimia terutama analisis kimia fluida panas bumi. Pendekatan untuk menentukan karakteristik fluida kimia panas bumi dilakukan dengan metode geotermometer untuk mengukur kandungan air (SiO2) dan gas (Na-K) serta konsentrasi anion dan kation. Berdasarkan data pengamatan lapangan dan hasil uji laboratorium yang sudah terstandarisasi menunjukkan bahwa suhu bawah permukaan untuk fluida cair adalah 228oC dan untuk gas sebesar 220oC. Hasil pengujian sampel fluida panas bumi menunjukkan bahwa manifestasi panas bumi Kawah I dan Kawah IV daerah Jaboi, Sabang sangat prospek untuk dikembangkan. Informasi fluida ini menjadi salah satu parameter dalam pengembangan potensi panas bumi. Oleh karena itu sangat penting ditindaklanjuti karena dapat menjawab kebutuhan energi yang ramah lingkungan dan energi terbarukan. The Volcano Leumo Matee and Seumeuregoh, Jaboi Sabang have enormous geothermal energy potential. This is characterized by the presence of surface manifestations such as hot steam, fumaroles and hot springs. Therefore, it needs to be studied more deeply and thoroughly to obtain detailed information, especially the temperature and rock/mineral characteristics. A study has been carried out for geochemical studies, especially chemical analysis of geothermal fluids. The approach to determine the characteristics of the geothermal chemical fluid is carried out by geothermometry to measure the water content (SiO2) and gas (Na-K) as well as the concentration of anions and cations. Based on field observations and standardized laboratory tests, the subsurface temperature for liquid fluids is 228oC and for gases of 220oC. The results of testing geothermal fluid samples show that the geothermal manifestations of Kawah I and Kawah IV Jaboi, Sabang are very prospects to be developed. This fluid information is one of the parameters in developing geothermal potential. Therefore, it is very important to follow up because it can answer the needs of environmentally friendly energy and renewable energy. Keywords: Volcano, Geothrmometry, jaboi, Sabang, Temperature

Chern-Simons-Antoniadis-Savvidy Forms and Non-Abelian Anomaly Suhaivi Hamdan; Erwin Erwin; Saktioto Saktioto
Journal of Aceh Physics Society Volume 8, Number 1, January 2019
Publisher : PSI-Aceh

Kuat medan tensor yang ditransformasikan secara homogen terhadap perluasan transformasi gauge memenuhi bentuk sifat invarian gauge. Analisa invarian gauge dalam bantuk integeralnya memperlihatkan hubungan dengan koordinat ruang-waktu yang menunjukan bentuk baru dari topologi Lagrangian. Sifat invarian dari bentuk Pontryagin-Chern terhadap kuat medan tensor non-Abelian dan lemma Poincare dapat digunakan untuk mengkontruksi bentuk ChSAS yang menunjukan sifat quasi-invarian dibawah transformasi gauge. Artikel ini bertujuan untuk membuktikan bahwa kuat medan tensor Yang-Mills dari bentuk ChSAS memilik variasi gauge anomali non-Abelian seperti pada bentuk Chern-Simons. Integrasi bentuk ChSAS menghasilkan dimensi-4, 6 dan 8 variasi gauge genap dan memperlihatkan hubungan dengan bentuk Chern-Simons dimensi-3 dan 5 untuk variasi gauge ganjil. Bentuk ChSAS memperlihatkan variabel lebih kompleks yang menujukan sifat berosilasi. Tensors field strength transformation homogeneously to extend gauge transformation fulfilling charateristic gauge invariant form. Analysis gauge invariant in integral form shows corresponding with space-time coordinate that prove new topology Lagrangians form. Furthermore invariant charateristic of Pontryagin-Chern to non-Abelian tensor gauge fields and lemma Poincare used to contruct ChSAS forms which shows quasi-inavriant under gauge transformation. This paper aims to prove Yang-Mills tensor gauge field of ChSAS forms has variation non-Abelian anomaly like Chern-Simons forms. The integration ChSAS forms resulted 4, 6 and 8-dimensional even gauge variation which also correspond 3 and 5-dimensional odd gauge variation Chern-Simons forms. The ChSAS forms also showed complex variable and osilation. Keywords: Pontryagin-Chern, Kuat medan tensor non-Abelian, Chern-Simans-Antoniadis-Savvidy, Anomali Non-Abelian.

A Field Survey of Soil Corrosivity Based on Electrical Resistivity Method Muzakir Zainal; Marwan Marwan
Journal of Aceh Physics Society Volume 8, Number 1, January 2019
Publisher : PSI-Aceh

Salah satu upaya mitigasi bencana yang perlu dilakukan sebelum pembangunan fasilitas pada kawasan industri yaitu kajian korositivitas tanah. Sifat korositivitas dapat menyebabkan rusaknya infrastruktur bangunan dalam ambang batas tertentu, Kajian korositivitas tanah telah dilakukan pada kawasan industri Kecamatan Julok, Kabupaten Aceh Timur dengan tujuan untuk melakukan investigasi dan pemetaan tingkat korositivitas tanah menggunakan metode resistivitas Wenner 4 pin dan perhitungan pH meter untuk tanah. Akuisisi data dilakukan dengan titik pengukuran sebanyak tujuh titik, dimana setiap titik pengukuran data terdistribusi pada lokasi yang akan digunakan untuk pembangunan industri dengan total panjang lintasan pengukuran 6 km. Hasil pengolahan data resistivitas 1D diperoleh dua jenis pelapisan tanah. Lapisan pertama lebih didominasi oleh kondisi tanah yang tidak korosif dengan nilai resistivitas 20 – 580 Ohm.m. Sedangkan lapisan kedua dapat diduga sebagai lapisan yang korosif dengan nilai resistivitas tanah 5 – 20 Ohm.m. One of the disaster mitigation that needs to be done before facilities development in industrial area is study of soil corrosivity. Within a certain threshold, this corrosivity can cause damage to building infrastructure. This research was done in the industrial area of Julok Subdistrict, East Aceh Regency with the aim of investigating and mapping the level of soil corrosion using a 4-pin Wenner resistivity method and calculating the pH for soil. Data acquisition was carried out at seven measurement point, where each measurement point is distributed at a location that will be used for industrial development with 6 km length. Inversion of resistivity data gives two type of soil layer. The first layer is more complete by non-corrosive soil conditions with resistivity values of 20 - 580 Ohm.m. While the second layer can be interpreted as a corrosive layer with a soil resistivity value of 5-20 Ohm.m. Keywords: korosi, resistivitas, wenner, pH, mitigasi bencana

Designed of Automatic Egg Incubator Based on Atmega328p Microcontroller Fauzi Fauzi
Journal of Aceh Physics Society Volume 8, Number 1, January 2019
Publisher : PSI-Aceh

Telah berhasil dilakukan sebuah perancangan ruangan penetas telur otomatis dengan memanfaatkan sensor DHT-11 yang berbasis mikrokontroler ATMega328p. Sistem ini dirancang sehingga suhu dan kelembaban ruangan pentetas tersebut dapat diatur secara otomatis. Otomatisasi pengontrolan sistem ini cukup kompleks dan membutuhkan berbagai komponen terintegrasi dengan kemampuan pembacaan masukan, pemrosesan data dan pengontrolan keluaran secara bersamaan dan terprogram. Sistem ini nantinya akan diaplikasikan untuk keperluan industri peternakan unggas. Penelitian ini berguna bagi peternak untuk melakukan proses pengontrolan penetasan dimana suhu dan kelembaban ruangan penetas secara otomatis akan diatur suhu dan kelembaban dengan sendirinya sehingga memudahkan peternak sebab tidak memerlukan pengamatan khusus terhadap suhu ruang dan kelembabannya. Sistem utama pada mesin penetas telur otomatis ini adalah sensor DHT-11 untuk mendapatkan nilai suhu dan kelembabannya dan data dari sensor tersebut akan diproses oleh sebuah mikrokontroler lalu ditampilkan nilainya pada LCD. Ketika suhu terlalu tinggi, maka kipas akan menyala dan lampu akan mati, sedangkan jika suhu lebih rendah dari set point maka lampu menyala kembali dan kipas akan mati. An automatic egg hatching room has been successfully designed by using the DHT-11 sensor based on the ATMega328p microcontroller. The system is designed so that the temperature and humidity of the plant room can be adjusted automatically. Automation of controlling this system is quite complex and requires various integrated components with the ability to read input, data processing and controlling output simultaneously and programmed. The system will later be applied to the needs of the poultry farming industry. This research is useful for farmers to carry out the hatching control process where the temperature and humidity of the incubator will automatically be regulated by temperature and humidity by itself so as to make it easier for farmers because it does not require special observations on the room temperature and humidity. The main system in this automatic egg incubator is the DHT-11 sensor to get the value of temperature and humidity and the data from the sensor will be processed by a microcontroller and displayed on the LCD. When the temperature is too high, the fan will turn on and the light will turn off, whereas if the temperature is lower than the set point, the light will turn on again and the fan will turn off. Keywords: ATMega328p, Sensor suhu, Adruino Uno, PentetasTelur.

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