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The detailed geological investigation in Kadidia geothermal field and surrounding areas, Nokilalaki District, Sigi Regency, Central Sulawesi Province Firmansyah, Irwan; Siswandi, Siswandi; Iswahyudi, Sachrul; Hermawan, Dudi; Mustofa, Santia Ardi
Journal of Earth and Marine Technology (JEMT) Vol 2, No 2 (2022)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2022.v2i2.2870

Abstract

The need for alternative energy other than fossil energy is felt to be increasingly urgent for the fulfillment of domestic electrical energy. In meeting the demand for electricity, the government needs to investigate alternative geothermal energy, to find out the potential for geothermal energy to provide electricity. The realization of this policy is that the government conducts an integrated geothermal investigation to find prospective geothermal areas that can be developed as electric power. Nokilalaki District, Sigi Regency, Central Sulawesi Province is one area that has geothermal potential in Indonesia. The Kadidia geothermal area, Sigi Regency, Central Sulawesi Province is one of the volcanic geothermal fields that have good potential and needs to be investigated further, especially on geological conditions that affect the presence of geothermal energy. The research method used is the method of analyzing the results of field observations. From the observations, it can be concluded that the geomorphology of the research area is divided into Tongoa hills, Nokilalaki Granite Intrusions, Kamamora Hills, and Kadidia Alluvial Plains. The stratigraphy of the study area from old to young consists of Breccia, Sandstone, Granite Intrusion A, Granite Intrusion B, Granite Intrusion C, and Alluvial Plain. The geological structure of the study area consists of the Kamamora sinistral shear fault and the Kadidia dextral shear fault. The geological history of the study area begins in the early Miocene which is the beginning of the movement of the Palu - Koro fault.
Geothermal Temperature Slope at the KDD – 1 Well, Kadidia and Surrounding Areas, Nokilalaki, Sigi, Central Sulawesi Province Firmansyah, Irwan; Siswandi, Siswandi; Iswahyudi, Sachrul; Hermawan, Dudi; Mustofa, Santia Ardi
Journal of Earth and Marine Technology (JEMT) Vol 2, No 2 (2022)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2022.v2i2.2873

Abstract

The need for alternative energy other than fossil energy is felt to be increasingly urgent for the fulfillment of domestic electrical energy. In meeting the demand for electricity, the government needs to investigate alternative geothermal energy, to find out the potential for geothermal energy to provide electricity. The realization of this policy is that the government conducts an integrated geothermal investigation to find prospective geothermal areas that can be developed as electric power. Nokilalaki District, Sigi Regency, Central Sulawesi Province is one area that has geothermal potential in Indonesia. The Kadidia geothermal area, Sigi Regency, Central Sulawesi Province is one of the volcanic geothermal fields that have good potential and needs to be investigated further, especially on geological conditions that affect the presence of geothermal energy. The research method used is the method of analyzing the results of field observations. From the observations, it was concluded that the KDD-1 temperature gradient well had a final depth of 703.85 m. The formation temperature is 96.87 ºC at a depth of 700-meters with an average slope value of 12.8 ºC/100 meters, and the estimated temperature at a depth of 1500 m (estimated top reservoir) is 220 ºC.
The detailed morphological formation based on geological investigation in Somawangi and surrounding areas, Mandiraja District, Banjarnegara Regency, Central Java Qur'an, Mudrik Infithor Nurul; Siswandi, Siswandi; Gibran, Akhmad Khalil
Journal of Earth and Marine Technology (JEMT) Vol 2, No 2 (2022)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2022.v2i2.2880

Abstract

Geological mapping is an activity to be able to know the geological conditions of a field. Somawangi Village and its surroundings have a geological history depicting the history of the past that continues until now. This location is located in Mandiraja District, Banjarnegara Regency with a morphology consisting of rock outcrops that record past history which can be used as learning media for the field of geological science. This study aims to determine the geological conditions and resource potential as well as geological disasters at the research site. From the results of the study, it can be concluded that the Geomorphology of the research area can be divided into 3 geomorphological units, namely the Sloping Structural Hills Unit (S3), Structural Sloping Lowland Unit (S1), and Volcano Denudational Hills Unit (V14) with the composition The stratigraphy of the study area is divided into 5 rock units, from the oldest to the youngest, the Somawangi Volcanic Breccia Unit, the Sandstone Unit, the Andesite Lava Unit, the Tuff Rock Unit, and the Kaliwungu Volcanic Breccia Unit. The geological structure of the research area is the Left Fault which is found along the rivers and hills in the eastern area of the research location with an emphasis on northeast-southwest. And the geological potential of the research area can be divided into 2, namely positive potential such as mining of sand and rocks around the river, the use of red soil as a ceramic and brick material, the use of andesite lava which has the potential to mine minerals, and the presence of mineralization alteration in the research area. While the negative potential is the potential for land movement or landslides
REINFORCEMENT OF CHARACTER VALUES IN SOCIAL SCIENCE EDUCATION AT MADRASAH TSANAWIYAH MATHLA™UL ANWAR PONTIANAK Mauludea, Hana; Siswandi, Siswandi; Nurhadianto, Nurhadianto
JUPIIS: JURNAL PENDIDIKAN ILMU-ILMU SOSIAL Vol. 15 No. 2 (2023): JUPIIS (JURNAL PENDIDIKAN ILMU ILMU SOSIAL) DECEMBER
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jupiis.v15i2.50437

Abstract

The purpose of this research is to describe what strengthening character values looks like in Mathla'ul Anwar Pontianak-based social studies education. It is hoped that this description of the educational pattern carried out at the Mathla'ul Anwar Islamic Boarding School can contribute to a learning model that can strengthen the character values of students. This research uses a case study method using data collection techniques as a guide to observation, interviews, and documentation. The analysis was carried out qualitatively based on data found through observations, interviews, and collected documents. The results of this research show that the education pattern carried out by Pesantren Pondok is quite progressive in strengthening character values. During routine recitation activities, ustadz and ustadzah highlight the latest themes in the community. Islamic boarding schools make strict rules in an effort to instill discipline and religious values, but they do not exclude modern elements. When students have good character, social intelligence is created in them so that when they enter society, they still have morals and social insight because they have social intelligence. Mathla'ul Anwar Islamic Boarding School is an Islamic educational institution in Indonesia that is widely known and has an important role in Islamic education. Like other Islamic boarding schools, Mathla'ul Anwar also emphasizes the importance of strengthening character values in the education of his students. Good character values provide a basis for decision-making. Santri who have grown up with values such as justice, sincerity, and responsibility will be more likely to make wise and responsible decisions. The aim of this character education is to form students who not only have good religious knowledge but also have noble personalities, commendable morals, and are able to contribute positively to society. By having good character and implementing positive values in their daily lives, students can create an environment that is harmonious, supports each other, and allows them to develop holistically.
Correlating Color and The Chemical Profiles of Sterculia quadrifida Barks for Herbal Raw Materials Quality Hertiani, Triana; Siswandi, Siswandi; Pratiwi, Agrita Eka; Pamungkas, Aryaningtyas Widya; Rumondang, Amanda; Rodiata, Tsania Andaya; Pratiwi, Sekar Ayu; Lay, Caterina Siskadewi; Agustina, Ikra
Majalah Obat Tradisional Vol 30, No 2 (2025)
Publisher : Faculty of Pharmacy, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/mot.95624

Abstract

The traditional use of faloak (Sterculia quadrifida R. Br.) stem bark as an effective treatment for various diseases has led to its widespread cultivation and collection. Therefore, this study aims to determine the correlation between the intensity and color variation of faloak stem bark with its antioxidant activity and phytochemical content using chemometrics analysis. The study procedures were carried out by collecting samples from different locations in East Nusa Tenggara, Indonesia. Stem bark intensity and color variations were then associated with chemical profiles of extract produced. Chemical profiles analyzed were Total Phenolic Content (TPC), Total Flavonoid Content (TFC), and antioxidant activity as measured using the DPPH, b-carotene bleaching, and CUPRAC methods. Subsequently, the data were subjected to multivariate statistical analyses utilizing Principal Component Analysis (PCA) and Cluster Analysis (CA). The results showed that color variations on faloak stem bark had no significant impact on cluster formation. CA and PCA showed grouping according to gray value representing color intensity. Meanwhile, PCA revealed significant correlations between gray value of faloak stem bark extract and TPC, antioxidant activity, and extract yield, with TFC having no association. Based on these results, color detection system could be developed to facilitate S. quadrafida bark collection as herbal medicine raw materials in the field.