Journal of Aceh Physics Society最新文献

{"title":"2D Modeling of Seulawah Agam Geothermal Field Based on Magnetotelluric (MT) Data","authors":"I. Putra, N. Ismail, M. Marwan","doi":"10.24815/JACPS.V8I2.12871","DOIUrl":"https://doi.org/10.24815/JACPS.V8I2.12871","url":null,"abstract":"Telah dilakukan pemodelan 2D data Magnetotellurik (MT) di Gunung Api Seulawah Agam. Penelitian ini bertujuan untuk mendapatkan model konseptual lapangan panas bumi Gunung Api Seulawah Agam berdasarkan model resistivitas 2D. Data fungsi transfer MT yang digunakan yaitu dari rentang frekuensi 2,34 - 320 Hz yang terdiri dari 7 titik stasiun pengukuran. Data titik pengukuran terdiri dari nilai intensitas medan listrik dan intensitas medan magnet yang memiliki 28 frekuensi. Total panjang lintasan pengukuran yaitu sepanjang 27,7 km. Lintasan pengukuran memotong Gunung Api Seulawah Agam dari arah Selatan ke Utara. Data hasil pengukuran yaitu berupa nilai resistivitas semu dan fase yang kemudian dimodelkan menggunakan kode REBOCC. Terdapat 3 model yang dihasilkan dari proses inversi data MT menggunakan REBOCC yaitu mode TE, mode TM dan mode TE+TM. Model mode TE+TM merupakan model yang paling bagus karena menghasilkan model yang lebih jelas dan smooth bila dibandingkan dengan model pada mode TE dan mode TM. Hasil model konseptual menunjukkan bahwa pada lapisan pertama yaitu lapisan top soil (lapisan teratas) memiliki nilai resistivitas sebesar 20 - 60 Ω.m, yang terdapat pada jarak 6 - 23 km. Lapisan kedua yaitu lapisan clay/caprock dengan nilai resistivitas relatif rendah yaitu lebih kecil dari 10 Ω.m, yang berada pada jarak 6 - 27,7 km. Lapisan clay/caprock memiliki sifat impermeabel dan konduktif. Selanjutnya lapisan ketiga yaitu lapisan reservoir dengan nilai resistivitas berkisar antara 10 - 100 Ω.m. 2D modeling of magnetotelluric data has been conducted at Seulawah Agam volcano. This study aims to obtain a conceptual model of Seulawah Agam geothermal field based on 2D resistivity model. The magnetotelluric data were measured in range of frequency from 2.34 to 320 Hz at 7 stations along a profile crossing the Seulawah Agam volcano. The length of the profile is 27.7 km with a direction from north to south. The apparent resistivity and phase of magnetotelluric transfers function were used for the 2D inversion modelling of REBOCC code. The inversion was carried out using TE-mode, TM-mode and TE+TM-mode to obtain a better model. The model inverted of TE+TM-mode has resolved well, resistivity variation of subsurface of the Seulawah Agam volcano area. The inverted model shows the top later has resistivity values from 20-60 Ω.m, which is interpreted as a top soil. The second layer is a layer of clay/caprock with a relatively low resistivity values of less than 10 Ω.m. The third layer is predicted as reservoir with resistivity values ranging between 10-100 Ω.m. Keywords: magnetotelluric method, resistivity, 2D model, REBOCC code and Volcano Seulawah Agam.","PeriodicalId":31989,"journal":{"name":"Journal of Aceh Physics Society","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49632290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Precopy Live Migration on Core Network Virtualization Internet Protocol Multimedia Subsystem","authors":"Mizanul Ahkam, R. Munadi, Teuku Yuliar Arif","doi":"10.24815/JACPS.V8I2.12613","DOIUrl":"https://doi.org/10.24815/JACPS.V8I2.12613","url":null,"abstract":"Internet Protocol Multimedia Subsystem (IMS) merupakan suatu arsitektur topologi framework untuk mengirimkan layanan Multimedia berbasiskan IP (Internet Protocol), yang telah menjadi arsitektur framework terkemuka yang sebagai enabler dari operator untuk menawarkan layanan VoIP dan layanan multimedia. Precopy Live Migration merupakan proses migrasi yang diterapkan pada IMS dengan cara page memory pada VM ditransmisikan pada fase iterasi ketika VM sedang dalam state running pada host sumber. Kemudian VM pada sumber di suspend menggunakan fase stop-and-copy dan sisa page memory ditransmisikan menuju host tujuan. Penelitian ini berfokus pada bagaimana IMS tetap dapat melayani pada saat terjadinya migrasi. Downtime yang terlalu lama akan berakibat pada pelayanan dari servis IMS tidak maksimal. Parameter yang akan diuji adalah Downtime, Waktu Migrasi, dan Jumlah data yang di transfer. Internet Protocol Multimedia Subsystem (IMS) is a framework architect topology to delivery multimedia services (Internet Protocol) based which has become the latest architect framework as operator services enabler that provide VoIP and Multimedia services. Precopy Live Migration implemented to IMS with VM’s memory pages are transmitted in the iteration phase, while the VM is still running at the source. After that, the VM is suspended in the stop- and-copy phase, and the remaining pages are transmitted to the destination. This research focused on how IMS can provide user during migration process. Longest downtime process will impact on service level to user. During migration process, Downtime, Migration Time, and Amount transferred data were evaluated. Keywords: downtime, migration, IMS, Virtual, precopy live migration ","PeriodicalId":31989,"journal":{"name":"Journal of Aceh Physics Society","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48508944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation on Aneuk Laot Lake Water Depreciation Based on Distribution of Minor Fault with a Remote Sensing Method","authors":"Nindi Yusifa, Aljikri Yanto, Shiyasatusy Sairiyyah, Muhammad Isa","doi":"10.24815/JACPS.V8I2.11246","DOIUrl":"https://doi.org/10.24815/JACPS.V8I2.11246","url":null,"abstract":"Danau Aneuk Laut berasal dari bekas kepundan gunungapi yang telah mati dan secara bertahap terisi air. Sejak 15 tahun belakangan ini danau mengalami penurunan muka air, hal ini diduga akibat Gempa dan tsunami pada 26 Desembar 2004. Pemantauan penyusutan air danau dilakukan dengan metode penginderaan jauh menggunakan data DEM SRTM dan citra satelit Landsat. DEM SRTM digunakan untuk analisis struktur sesar dan rekahan melalui peta Fault Fracture Density (FFD). Citra satelit landsat digunakan untuk identifikasi sebaran vegetasi menggunakan transformasi Normalized Difference Vegetation Index (NDVI) dan klasifikasi tutupan lahan menggunakan metode Maximum likelhood dari tahun 2001-2017. Berdasarkan peta FFD ditemukan kelurusan tertinggi yaitu danau Aneuk Laot yang memiliki zona permeabel dari struktur geologi sehingga semakin kecil kerapatan struktur maka semakin besar permeabilitasnya. Peta penyusutan air danau dengan menghitung luas permukaan air danau dari periode 2001 -2017 telah mengalami penurunan sebesar 102.600 m². Untuk tahun 2001-2003 mengalami kenaikan sebesar 68700 m² dan pada tahun 2003-2004 mengalami penurunan sebesar -42300 m². Peta sebaran vegetasi di pulau Weh memiliki index vegetasi NDVI maksimum 0,863554 yang artinya memiliki sebaran vegetasi sangat rapat berwarna hijau pekat dan Index vegetasi minimum NDVI sebesar -0,375631 menunjukkan tidak adanya rapat vegetasi berwarna coklat. Aneuk Laot Lake comes from the former crater of a volcano that has died and gradually filled with water. For about 15 years lakes have decreased Lake water level, allegedly caused by earthquake and tsunami on 26 desembar 2004. Monitoring of lake water depreciation is done by remote sensing method using DEM SRTM data and Landsat satellite image. DEM SRTM is used for analysis of fault and fracture structures through the Fault Fracture Density (FFD) map. Landsat satellite imagery was used to identify vegetation distribution using Normalized Difference Vegetation Index (NDVI) transformation and land cover classification using Maximum likelihary method from 2001-2017. Based on the FFD map found the highest alignment of the Aneuk Laot lake that has a permeable zone of geological structure so that the smaller the density of the structure the greater the permeability. Map of the lake's water depreciation by calculating the lake surface area from 2001 -2017 has decreased by 102,600 m². For 2001-2003 increased by 68700 m² and in 2003-2004 decreased by -42300 m². The vegetation distribution map on Weh island has a maximum NDVI vegetation index of 0.863554 having very dense green vegetation density and a minimum vegetation index of NDVI-0.375631 indicating the absence of a brown vegetation meeting. Keywords: AneukLaot lake, DEM SRTM, Landsat, FFD","PeriodicalId":31989,"journal":{"name":"Journal of Aceh Physics Society","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44321795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Identification of Hydrogeological Effects on Leachate Spread in the East and West of the Java Gampong Landfill Using the Geoelectric Method","authors":"Ulfani Ulfani, Dewin Ahmad Badawi, Siti Nurjannah, D. Sugiyanto","doi":"10.24815/JACPS.V8I2.11245","DOIUrl":"https://doi.org/10.24815/JACPS.V8I2.11245","url":null,"abstract":"Penelitian untuk mengidentifikasi pengaruh hidrogeologi terhadap penyebaran lindi telah dilakukan di sekitar TPA Gampong Jawa Kota Banda Aceh menggunakan metode geolistrik resistivitas. Akuisisi data di lapangan menggunakan alat SuperSting R8/IP yang dilakukan di bagian timur dan barat TPA Gampong Jawa. Pengukuran yang dilakukan menggunakan 2 lintasan pengukuran dengan panjang lintasan yaitu 224 m. Konfigurasi Wenner-Schlumberger dari metode geolistrik resistivitas digunakan sehingga diharapkan dapat mengidentifikasi penyebaran lindi di lintasan pengukuran. Hasil akuisisi data di lapangan diolah menggunakan software Res2dinv untuk mendapatkan model 2D resistivitas bawah permukaan di lintasan pengukuran. Nilai resistivitas lapisan yang mengandung lindi yaitu 1 Ώm yang diidentifikasi pada lintasan 1 dan lintasan 2. Sebaran lindi di lintasan 1 terdapat pada jarak 20 – 115 m dan 145 – 185 m yang mempunyai kedalaman 5 – 13 m, dan di lintasan 2 terdapat pada jarak 20 – 80 m, 100 m, 125 – 130 m, 165-185 m dan 210 – 240 m yang mempunyai kedalaman 8 – 27 m. Berdasarkan hasil analisis didapatkan bahwa diperkirakan terdapatnya pengaruh hidrogeologi terhadap sebaran lindi di lokasi penelitian, sehingga diidentifikasi adanya lindi yang mengalir ke sungai. The research to identify of hydrogeological effect on leachate distribution was conducted at Gampong Jawa landfill Area Banda Aceh City by using goelectrical resistivity method. Data acquisition in the field by using SuperSting R8/IP instrument was conducted in the east and west of Gampong Jawa Area. The measurements were conducted by using 2 lines with length of the lines measurement is 224 m. The Wenner-Schlumberger configuration of geoelectrical resistivity method is used that expected would be identifying the leachate distribution in lines measurement. The data acquisition in the field is processed by using Res2dinv software to get the 2D model of sub surface resistivity in lines measurement. The resistivity value on the layer containing leachate is 1 Ώm identified at first line dan second line. The leachate distribution in first line showed at distances 20 – 115 m and 145 – 185 m with 5 – 13 m depth, and in second line showed at distances 20 – 80 m, 100 m, 125 – 130 m, 165 - 185 m and 210 – 240 m with 8 – 27 m depth. The result suggested that existence hydrogeological effect on leachate distribution in the research location, so that identified existence the leachate distribution which flowing to the river. Keywords: landfill, leachate, geoelestrical resistivity method, Wenner-Schlumberger configuration","PeriodicalId":31989,"journal":{"name":"Journal of Aceh Physics Society","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47245432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of Shallow Fault Structures Using Ground Penetrating Radar Method in Gampong Pangwa Trienggadeng District, Pidie Jaya Regency","authors":"Ayu Safrida, N. Ismail, M. Marwan","doi":"10.24815/JACPS.V8I2.11200","DOIUrl":"https://doi.org/10.24815/JACPS.V8I2.11200","url":null,"abstract":"Wilayah Aceh merupakan wilayah yang sering terjadi gempa bumi dengan skala besar. Salah satu gempa bumi dengan skala besar adalah Gempa Pidie Jaya yang terjadi pada 7 Desember 2016. Setelah terjadi gempa bumi, banyak terjadi pergerakan tanah yang ditemukan di area penelitian. Telah dilakukan serangkaian pengukuran menggunakan Ground Penetrating Radar (80 MHz) untuk mempelajari struktur bawah permukaan setelah terjadinya gempa bumi. Penelitian ini dilakukan di Desa Pangwa, Kecamatan Trienggadeng, Kabupaten Pidie Jaya. Pengukuran dilakukan di sepanjang jalan di Desa Pangwa yang melintasi dua jembatan. Pengukuran dilakukan pada 18 lintasan dengan panjang masing–masing lintasan sepanjang 50 m. Pengolahan data dilakukan dengan menggunakan software GRED. Berdasarkan hasil radargram, kita menemukan struktur pemukaan dangkal berupa patahan di tengah gambaran radargram pada lintasan 13 yang disebabkan oleh terjadinya gempa di Pidie Jaya. The Aceh region is an area of frequent large-scale earthquakes. One of the earthquakes with a large scale is Pidie Jaya Earthquake that occurred on December 7, 2016. After the earthquake, many ground movement evidences were found in the area. The ground penetrating radar (80 MHz) measurement is used to study subsurface structures after the earthquake. This research was conducted in Pangwa Village, Trienggadeng Subdistrict, Pidie Jaya District. Measurements were carried out along the road in Pangwa Village which crossed two bridges. Data measurements were made along 18 profiles with 50 m length of each profile. Data processing were done by using GRED software. Based on processed radargrams, we found a fault trace at the middle of the profile lane 13 caused by the newest earthquake in Pidie Jaya. Keywords: Ground Penetrating Radar, Subsurface structure, electromagnetic wave velocity","PeriodicalId":31989,"journal":{"name":"Journal of Aceh Physics Society","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42541933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reservoir Temperature Estimation By Using Geothermometry (Case Study on Geothermal Field Jaboi, Sabang)","authors":"E. Eliyani, Muhammad Isa, K. Khairi, M. Rusdi","doi":"10.24815/JACPS.V8I1.12992","DOIUrl":"https://doi.org/10.24815/JACPS.V8I1.12992","url":null,"abstract":"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","PeriodicalId":31989,"journal":{"name":"Journal of Aceh Physics Society","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41580157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Potential of Red Dragon Fruit Skin (Hylocereanea Polyrhizus) as a Corrosion Inhibitor","authors":"Beti Nanda Sari, E. Yufita, Z. Zulfalina","doi":"10.24815/JACPS.V8I1.12787","DOIUrl":"https://doi.org/10.24815/JACPS.V8I1.12787","url":null,"abstract":"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","PeriodicalId":31989,"journal":{"name":"Journal of Aceh Physics Society","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48090627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Field Survey of Soil Corrosivity Based on Electrical Resistivity Method","authors":"M. Zainal, M. Marwan","doi":"10.24815/JACPS.V8I1.12768","DOIUrl":"https://doi.org/10.24815/JACPS.V8I1.12768","url":null,"abstract":"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","PeriodicalId":31989,"journal":{"name":"Journal of Aceh Physics Society","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44735441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chern-Simons-Antoniadis-Savvidy Forms and Non-Abelian Anomaly","authors":"Suhaivi Hamdan, Erwin Erwin, S. Saktioto","doi":"10.24815/JACPS.V8I1.12796","DOIUrl":"https://doi.org/10.24815/JACPS.V8I1.12796","url":null,"abstract":"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.","PeriodicalId":31989,"journal":{"name":"Journal of Aceh Physics Society","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49093892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Geological Structure Analysis of Satellit Gravity Data in Oil and Gas Prospect Area of West Aceh-Indonesia","authors":"D. Darisma, M. Marwan, N. Ismail","doi":"10.24815/JACPS.V8I1.12750","DOIUrl":"https://doi.org/10.24815/JACPS.V8I1.12750","url":null,"abstract":"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","PeriodicalId":31989,"journal":{"name":"Journal of Aceh Physics Society","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42358297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}