Pub Date : 2021-11-30DOI: 10.31258/jkfi.18.3.208-216
Mardian Peslinof, M. F. Afrianto, Yoza Fendriani, Benedika Ferdian Hutabarat
In this study, a water physical parameter monitoring system based on the Internet of Things (IoT) has been designed using a Raspberry Pi. Parameters monitored in this system are pH, water temperature, water turbidity, and water level. These parameters are essential to determine the level of water quality and quantity. The sensors used are temperature sensor type DS18B20, turbidity sensor type SEN0189, water pH sensor type SEN0161, and ultrasonic sensor HCSR04 trigger for water level. The software system is a program that is embedded in the Raspberry Pi microprocessor. The working mechanism of the monitoring system is that the system detects the physical parameters of the sensors. The signal results from the sensors will be processed via the Raspberry Pi. The processed data is stored on a server that can be accessed via the web. The working mechanism of the monitoring system is that the system detects the physical parameters of the sensor, the signal results from the sensor will be processed via the Raspberry Pi, and the processed data is stored on a server that can be accessed via the web. The sensor sensitivity levels obtained from observations of the system for parameters of pH, turbidity, temperature, and water level are 52.715 mV/pH, 0.0005 V/NTU, 0.0255 V/°C, and 0.0583 milliseconds/cm, respectively. The accuracy obtained in the system test is an average of 96.86% to 99.9%. The precision of the system ranges from 0.94 to 0.99. From the accuracy and precision test results, the water physical parameter monitoring system can work well.
{"title":"PERANCANGAN SISTEM PEMANTAUAN PARAMETER FISIS AIR BERBASIS INTERNET OF THINGS (IoT) MENGGUNAKAN RASPBERRY PI","authors":"Mardian Peslinof, M. F. Afrianto, Yoza Fendriani, Benedika Ferdian Hutabarat","doi":"10.31258/jkfi.18.3.208-216","DOIUrl":"https://doi.org/10.31258/jkfi.18.3.208-216","url":null,"abstract":"In this study, a water physical parameter monitoring system based on the Internet of Things (IoT) has been designed using a Raspberry Pi. Parameters monitored in this system are pH, water temperature, water turbidity, and water level. These parameters are essential to determine the level of water quality and quantity. The sensors used are temperature sensor type DS18B20, turbidity sensor type SEN0189, water pH sensor type SEN0161, and ultrasonic sensor HCSR04 trigger for water level. The software system is a program that is embedded in the Raspberry Pi microprocessor. The working mechanism of the monitoring system is that the system detects the physical parameters of the sensors. The signal results from the sensors will be processed via the Raspberry Pi. The processed data is stored on a server that can be accessed via the web. The working mechanism of the monitoring system is that the system detects the physical parameters of the sensor, the signal results from the sensor will be processed via the Raspberry Pi, and the processed data is stored on a server that can be accessed via the web. The sensor sensitivity levels obtained from observations of the system for parameters of pH, turbidity, temperature, and water level are 52.715 mV/pH, 0.0005 V/NTU, 0.0255 V/°C, and 0.0583 milliseconds/cm, respectively. The accuracy obtained in the system test is an average of 96.86% to 99.9%. The precision of the system ranges from 0.94 to 0.99. From the accuracy and precision test results, the water physical parameter monitoring system can work well.","PeriodicalId":403286,"journal":{"name":"Komunikasi Fisika Indonesia","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127597339","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}
Pub Date : 2021-11-30DOI: 10.31258/jkfi.18.3.230-237
A. Asnawi, T. N. Faiza, C. Diningsih, Muhimmatul Khoiro, Rohim Amirullah Firdaus
Photovoltaic is a solar cell technology in the field which is very susceptible to damage, both due to corrosion and shocks caused by wind. However, this can be done by using a coating system on the glass material of solar cell panels. Optimization and efficiency can be done by providing a glass and air gap index of about 1.5. This difference can result in about 92% of the transmission of light energy entering the solar cell panel. Technology to reduce reflections on solar panels by using a double coating system called anti-reflective material. The purpose of this study was to examine and find various research articles on SiO 2 -TiO 2 , SiO 2 -ZnO and SiO 2 -MgF 2 materials as antireflection materials in solar cells made with sol-gel spin coating. This research method uses literature reviews from various journals and research articles related to the use of SiO 2 -TiO 2 , SiO 2 -ZnO, SiO 2 -MgF 2 materials. Furthermore, the article is analyzed and studied to find out whether the article is feasible or not to be used as the basis for fabricating solar cells. Furthermore, the article was analyzed and the value to determine whether the results showed a transmittance of 99.7% for SiO 2 -TiO 2 , SiO 2 -ZnO (96.1%) and 98.9% for SiO 2 -MgF 2 materials. From the results of the study, it can be said that SiO2-TiO2 material is a material with the best antireflection performance for solar panels, with these materials can be used as a reference for further research on solar panel technology.
{"title":"EFEK LAPISAN GANDA ANTIREFLEKTIF UNTUK MENINGKATKAN TRANSMISI PHOTOVOLTAICS DARI SEL SURYA","authors":"A. Asnawi, T. N. Faiza, C. Diningsih, Muhimmatul Khoiro, Rohim Amirullah Firdaus","doi":"10.31258/jkfi.18.3.230-237","DOIUrl":"https://doi.org/10.31258/jkfi.18.3.230-237","url":null,"abstract":"Photovoltaic is a solar cell technology in the field which is very susceptible to damage, both due to corrosion and shocks caused by wind. However, this can be done by using a coating system on the glass material of solar cell panels. Optimization and efficiency can be done by providing a glass and air gap index of about 1.5. This difference can result in about 92% of the transmission of light energy entering the solar cell panel. Technology to reduce reflections on solar panels by using a double coating system called anti-reflective material. The purpose of this study was to examine and find various research articles on SiO 2 -TiO 2 , SiO 2 -ZnO and SiO 2 -MgF 2 materials as antireflection materials in solar cells made with sol-gel spin coating. This research method uses literature reviews from various journals and research articles related to the use of SiO 2 -TiO 2 , SiO 2 -ZnO, SiO 2 -MgF 2 materials. Furthermore, the article is analyzed and studied to find out whether the article is feasible or not to be used as the basis for fabricating solar cells. Furthermore, the article was analyzed and the value to determine whether the results showed a transmittance of 99.7% for SiO 2 -TiO 2 , SiO 2 -ZnO (96.1%) and 98.9% for SiO 2 -MgF 2 materials. From the results of the study, it can be said that SiO2-TiO2 material is a material with the best antireflection performance for solar panels, with these materials can be used as a reference for further research on solar panel technology.","PeriodicalId":403286,"journal":{"name":"Komunikasi Fisika Indonesia","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126511519","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}
Pub Date : 2021-11-30DOI: 10.31258/jkfi.18.3.217-224
Muhammad Ikko Safrilda Maulana, Nur Irfan Wicaksono, Yosafat Donni Haryanto
Mesoscale Convective Complex (MCC) is part of the Mesoscale Convective System (MCS) that its characteristics can be observed by the Himawari-8 satellite imagery infrared channel. In this study, the effect of MCC is calculated based on the estimated rainfall value at the interior cold cloud and cloud shield on the amount of observed rainfall data by applying the Convective Stratiform Technique (CST) and Modified Convective Stratiform Technique (MCST) methods. CST is a method of estimating rainfall by separating convective and stratiform cloud groups, while MCST is a modification of CST in terms of rainfall intensity and average pixel coverage on its area. Both methods were verified using rainfall observation data in Kendal with the closest observation station to the interior cold cloud and cloud shield.The purpose of this study was to determine the effect of MCC in Java on high rainfall during the flood. The results shows that the rainfall value is almost close to observation rainfall data worth 84,989 mm using CST. Although the estimated rainfall value in both methods tended to underestimate, the results of the verification of the effect of MCC on rainfall in Kendal shows moderate-strong relation in the CST with correlation values ranging from 0,30 to 0,61. Meanwhile, the MCST ranges from 0,30 to 0,59 which indicates weak-moderate category. CST error values is also smaller than MCST’s with values ranging 3,17 to 8,63. So that the CST method is better used to estimate rainfall at the interior cold cloud and the shield cloud.
{"title":"KAJIAN PENGARUH MESOSCALE CONVECTIVE COMPLEX DI PULAU JAWA TERHADAP CURAH HUJAN SAAT KEJADIAN BANJIR DI KENDAL PADA 26-27 JANUARI 2019","authors":"Muhammad Ikko Safrilda Maulana, Nur Irfan Wicaksono, Yosafat Donni Haryanto","doi":"10.31258/jkfi.18.3.217-224","DOIUrl":"https://doi.org/10.31258/jkfi.18.3.217-224","url":null,"abstract":"Mesoscale Convective Complex (MCC) is part of the Mesoscale Convective System (MCS) that its characteristics can be observed by the Himawari-8 satellite imagery infrared channel. In this study, the effect of MCC is calculated based on the estimated rainfall value at the interior cold cloud and cloud shield on the amount of observed rainfall data by applying the Convective Stratiform Technique (CST) and Modified Convective Stratiform Technique (MCST) methods. CST is a method of estimating rainfall by separating convective and stratiform cloud groups, while MCST is a modification of CST in terms of rainfall intensity and average pixel coverage on its area. Both methods were verified using rainfall observation data in Kendal with the closest observation station to the interior cold cloud and cloud shield.The purpose of this study was to determine the effect of MCC in Java on high rainfall during the flood. The results shows that the rainfall value is almost close to observation rainfall data worth 84,989 mm using CST. Although the estimated rainfall value in both methods tended to underestimate, the results of the verification of the effect of MCC on rainfall in Kendal shows moderate-strong relation in the CST with correlation values ranging from 0,30 to 0,61. Meanwhile, the MCST ranges from 0,30 to 0,59 which indicates weak-moderate category. CST error values is also smaller than MCST’s with values ranging 3,17 to 8,63. So that the CST method is better used to estimate rainfall at the interior cold cloud and the shield cloud.","PeriodicalId":403286,"journal":{"name":"Komunikasi Fisika Indonesia","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132383116","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}
Pub Date : 2021-11-30DOI: 10.31258/jkfi.18.3.225-229
Salomo Sinuraya, Erwin Amiruddin, Diah Nurrohmah, T. Wulandari
Research has been carried out on magnetic susceptibility and magnetic particle composition of natural sand on the Rokan River, Riau Province as a function of the rotating speed of ball milling tubes. The sample is dried in the sun before separating the magnetic particles from non-magnetic particles using an Iron Sand Separator, this result is called the ISS product. ISS products are milled with different milling tube rotational speeds of 100, 150, and 200 rpm with an iron ball with a diameter of 2.0 cm. The product obtained from ball milling is then separated by magnetic and non-magnetic particles using a Neodymium Iron Boron (NdFeb) magnet, this result is called a ball milling product (BM product). The results of this study indicate that the magnetic susceptibility of the ISS product has a value 1,930.771 × 10 -5 , while the value of the magnetic susceptibility of ball milling products increases with the increase in the rotational speed of the tube, namely 28,188.141 × 10 -5 , 31,136.137 × 10 - , 5 and 33,123.550 × 10 -5 for a rotating speed of 100, 150, and 200 rpm. XRF identification results show that the magnetic element Fe increased from 13.777% to 27.064%, while the non-magnetic element Si decreased from 58.401% to 42.920%.
{"title":"ANALISA PERUBAHAN SUSEPTIBILITAS MAGNETIK DAN KOMPOSISI PARTIKEL PASIR ALAM SUNGAI ROKAN SEBAGAI FUNGSI KECEPATAN PUTAR TABUNG BALL MILLING","authors":"Salomo Sinuraya, Erwin Amiruddin, Diah Nurrohmah, T. Wulandari","doi":"10.31258/jkfi.18.3.225-229","DOIUrl":"https://doi.org/10.31258/jkfi.18.3.225-229","url":null,"abstract":"Research has been carried out on magnetic susceptibility and magnetic particle composition of natural sand on the Rokan River, Riau Province as a function of the rotating speed of ball milling tubes. The sample is dried in the sun before separating the magnetic particles from non-magnetic particles using an Iron Sand Separator, this result is called the ISS product. ISS products are milled with different milling tube rotational speeds of 100, 150, and 200 rpm with an iron ball with a diameter of 2.0 cm. The product obtained from ball milling is then separated by magnetic and non-magnetic particles using a Neodymium Iron Boron (NdFeb) magnet, this result is called a ball milling product (BM product). The results of this study indicate that the magnetic susceptibility of the ISS product has a value 1,930.771 × 10 -5 , while the value of the magnetic susceptibility of ball milling products increases with the increase in the rotational speed of the tube, namely 28,188.141 × 10 -5 , 31,136.137 × 10 - , 5 and 33,123.550 × 10 -5 for a rotating speed of 100, 150, and 200 rpm. XRF identification results show that the magnetic element Fe increased from 13.777% to 27.064%, while the non-magnetic element Si decreased from 58.401% to 42.920%.","PeriodicalId":403286,"journal":{"name":"Komunikasi Fisika Indonesia","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132165721","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}
Pub Date : 2021-11-30DOI: 10.31258/jkfi.18.3.191-196
Mega Wati Siregar, Yanuar Yanuar
Silver nanoparticles are produced by chemical method, but this method can have a negative impact on the environment due to the use of toxic substances. So, green synthesis is more desirable for producing silver nanoparticles that has the minimum envioronmental hazard. Biosynthesis of silver nanoparticles was mixed using ketapang leaf extract (Terminalia Catappa) as a bioreductor to potential of methylene blue absorption. Silver nanoparticles is a good semiconduktor materials used as photocatalists to absorbing of methylene blue. The synthesis process was carried out at a temperature of 80 °C for 10 minutes. The analysis of UV-Vis spectra found that the silver nanoparticles were synthetized using comparison of exrtact and AgNO 3 solution 1:7 with maximum wavelength absorbtion which is characteristic of the formation of silver nanoparticles at a wavelength 424 nm. SEM characterization indicates that the silver nanoparticles had a morphology of nanofibers. In this study showed that higher contact time of degradation will increase the percentage of methylene blue degradation. The degradation activity of methylene blue at a concentration of 25 mg/L in an optimal time of 6 hours resulted in degradation values of 86.13%.
{"title":"POTENSI DAUN KETAPANG (TERMINALIA CATAPPA) SEBAGAI BIOREDUKTOR UNTUK SINTESIS NANOPARTIKEL PERAK DALAM PENYERAPAN METILEN BIRU","authors":"Mega Wati Siregar, Yanuar Yanuar","doi":"10.31258/jkfi.18.3.191-196","DOIUrl":"https://doi.org/10.31258/jkfi.18.3.191-196","url":null,"abstract":"Silver nanoparticles are produced by chemical method, but this method can have a negative impact on the environment due to the use of toxic substances. So, green synthesis is more desirable for producing silver nanoparticles that has the minimum envioronmental hazard. Biosynthesis of silver nanoparticles was mixed using ketapang leaf extract (Terminalia Catappa) as a bioreductor to potential of methylene blue absorption. Silver nanoparticles is a good semiconduktor materials used as photocatalists to absorbing of methylene blue. The synthesis process was carried out at a temperature of 80 °C for 10 minutes. The analysis of UV-Vis spectra found that the silver nanoparticles were synthetized using comparison of exrtact and AgNO 3 solution 1:7 with maximum wavelength absorbtion which is characteristic of the formation of silver nanoparticles at a wavelength 424 nm. SEM characterization indicates that the silver nanoparticles had a morphology of nanofibers. In this study showed that higher contact time of degradation will increase the percentage of methylene blue degradation. The degradation activity of methylene blue at a concentration of 25 mg/L in an optimal time of 6 hours resulted in degradation values of 86.13%.","PeriodicalId":403286,"journal":{"name":"Komunikasi Fisika Indonesia","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116420354","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}
Pub Date : 2021-11-30DOI: 10.31258/jkfi.18.3.167-172
Defrianto Defrianto, Eri Wiyadi, L. Umar
Pembangkit energi listrik Thermoelectric Generator tipe 10W-4V-40s bekerja melalui perbedaan suhu dikedua sisinya. Sisi panas (Th) dari sebuah elemen TEG diletakan pada dudukan yang terbuat dari bahan Alumunium Dural dan diberi sumber panas yang berasal dari kolektor surya parabola, pada sisi dingin (Tc) elemen TEG dipasang heatsink guna mengurangi energi panas yang menembus sisi dingin serta menjaga suhunya agar tetap rendah, hasil dari penelitian menunjukan bahwa Kolektor surya parabola dalam penelitian ini mampu menghasilkan suhu maksimum sebesar 64,2 °C. Tegangan Voc maksimum yang dihasilkan dari penelitian adalah sebesar 1,087 V selain itu tegangan beban Vo terhadap variasi hambatan beban RL pada suhu Th 40 °C dan suhu sisi dingin Tc 32 °C adalah 459, 47 mV pada RL 20 Ω., arus beban maksimum yang diperoleh adalah 125,97 mA pada RL 0,5 Ω dan cendrung turun seiring bertambahnya RL yaitu sebesar 23,63 mA pada RL 20 Ω. Nilai tegangan VL dan IL paling besar terletak pada saat receiver berada pada ketinggian 17,5 cm atau tepat berada pada titik fokus reflektor, yaitu sebesar 120,90 mV dan 31,87 mA dengan ∆T sebesar 25 °C.
{"title":"PENGEMBANGAN ENERGI TERBARUKAN HYBRID THERMOELECTRICS DENGAN MEMANFAATKAN PANAS MATAHARI DARI KOLEKTOR PARABOLA SILINDRIS","authors":"Defrianto Defrianto, Eri Wiyadi, L. Umar","doi":"10.31258/jkfi.18.3.167-172","DOIUrl":"https://doi.org/10.31258/jkfi.18.3.167-172","url":null,"abstract":"Pembangkit energi listrik Thermoelectric Generator tipe 10W-4V-40s bekerja melalui perbedaan suhu dikedua sisinya. Sisi panas (Th) dari sebuah elemen TEG diletakan pada dudukan yang terbuat dari bahan Alumunium Dural dan diberi sumber panas yang berasal dari kolektor surya parabola, pada sisi dingin (Tc) elemen TEG dipasang heatsink guna mengurangi energi panas yang menembus sisi dingin serta menjaga suhunya agar tetap rendah, hasil dari penelitian menunjukan bahwa Kolektor surya parabola dalam penelitian ini mampu menghasilkan suhu maksimum sebesar 64,2 °C. Tegangan Voc maksimum yang dihasilkan dari penelitian adalah sebesar 1,087 V selain itu tegangan beban Vo terhadap variasi hambatan beban RL pada suhu Th 40 °C dan suhu sisi dingin Tc 32 °C adalah 459, 47 mV pada RL 20 Ω., arus beban maksimum yang diperoleh adalah 125,97 mA pada RL 0,5 Ω dan cendrung turun seiring bertambahnya RL yaitu sebesar 23,63 mA pada RL 20 Ω. Nilai tegangan VL dan IL paling besar terletak pada saat receiver berada pada ketinggian 17,5 cm atau tepat berada pada titik fokus reflektor, yaitu sebesar 120,90 mV dan 31,87 mA dengan ∆T sebesar 25 °C.","PeriodicalId":403286,"journal":{"name":"Komunikasi Fisika Indonesia","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134068742","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}
Pub Date : 2021-11-30DOI: 10.31258/jkfi.18.3.179-190
Tabah Fatchur Rubiyana, Paul Hutabarat
Physical properties are often applied to oil and gas exploration analysis using seismic data. However, in reality, none of the physical properties (attributes) of seismic data can describe the entire type of lithology of a subsurface layer. It takes a combination of various physical properties (multi-attributes) and other data to map the lithological distribution of a subsurface layer. One of the seismic attributes that can be used in describing the condition of subsurface lithology is acoustic impedance (AI). Acoustic impedance can provide information in the form of rock lithology in a layer. This information can be interpreted by inversion. Inversions performed on acoustic impedance obtain the results of cross-sectional distribution of acoustic impedance that shows lithology. As existing lithological conditions, correlations to other physical properties can be modeled. Combination of the physical property used is called multi-attribute. Multi-attribute methods can predict and model the porosity of rocks from seismic attributes. The application of this method is used to describe lateral distribution and porosity mapping (neutron porosity). The results of the study using the multi-attribute seismic method applied to the LMGS Field seismic data obtained a distribution map of neutron porosity. Neutron porosity values obtained to show a hydrocarbon reservoir range from 0.05 to 0.2 on the fraction scale.
{"title":"MEMBANGUN MODEL NEUTRON POROSITY BAWAH PERMUKAAN DENGAN PROPERTI FISIK DATA SEISMIK PADA RESERVOIR KARBONAT","authors":"Tabah Fatchur Rubiyana, Paul Hutabarat","doi":"10.31258/jkfi.18.3.179-190","DOIUrl":"https://doi.org/10.31258/jkfi.18.3.179-190","url":null,"abstract":"Physical properties are often applied to oil and gas exploration analysis using seismic data. However, in reality, none of the physical properties (attributes) of seismic data can describe the entire type of lithology of a subsurface layer. It takes a combination of various physical properties (multi-attributes) and other data to map the lithological distribution of a subsurface layer. One of the seismic attributes that can be used in describing the condition of subsurface lithology is acoustic impedance (AI). Acoustic impedance can provide information in the form of rock lithology in a layer. This information can be interpreted by inversion. Inversions performed on acoustic impedance obtain the results of cross-sectional distribution of acoustic impedance that shows lithology. As existing lithological conditions, correlations to other physical properties can be modeled. Combination of the physical property used is called multi-attribute. Multi-attribute methods can predict and model the porosity of rocks from seismic attributes. The application of this method is used to describe lateral distribution and porosity mapping (neutron porosity). The results of the study using the multi-attribute seismic method applied to the LMGS Field seismic data obtained a distribution map of neutron porosity. Neutron porosity values obtained to show a hydrocarbon reservoir range from 0.05 to 0.2 on the fraction scale.","PeriodicalId":403286,"journal":{"name":"Komunikasi Fisika Indonesia","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123980683","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}
Pub Date : 2021-11-30DOI: 10.31258/jkfi.18.3.173-178
Irfan Afifuddin, Rustan Rustan, Tika Restianingsih
Water resources are important for the community because water is a basic need for living things, including humans. The increasing human population and rapid infrastructure development have led to a very high demand for clean water. On the other hand, environmental pollution and global warming have caused sources of clean water on the surface to continue to decrease. It is necessary to explore subsurface groundwater to meet the need for clean water. This study aims to determine the distribution and depth of the aquifer layer, which has the potential to store groundwater reserves. The method used in this research is the geoelectrical resistivity method with schlumberger configuration. Data acquisition was carried out at 16 line with a length of each line is 200 m. Data processing is done using Res2Dinv software and Surfer software. From the results of the study, it can be concluded that from the 16 geoelectric line used, the aquifer layer which can be interpreted as containing groundwater is located between 1035'50'' 1036'40'' South Latitude and 103030'50'' 104031'40'' East Longitude towards the south with a depth of 50 100 meters.
{"title":"IDENTIFIKASI LAPISAN AKUIFER MENGGUNAKAN METODE GEOLISTRIK KONFIGURASI SCHLUMBERGER DI PERUMAHAN ARZA GRIYA MANDIRI JAMBI","authors":"Irfan Afifuddin, Rustan Rustan, Tika Restianingsih","doi":"10.31258/jkfi.18.3.173-178","DOIUrl":"https://doi.org/10.31258/jkfi.18.3.173-178","url":null,"abstract":"Water resources are important for the community because water is a basic need for living things, including humans. The increasing human population and rapid infrastructure development have led to a very high demand for clean water. On the other hand, environmental pollution and global warming have caused sources of clean water on the surface to continue to decrease. It is necessary to explore subsurface groundwater to meet the need for clean water. This study aims to determine the distribution and depth of the aquifer layer, which has the potential to store groundwater reserves. The method used in this research is the geoelectrical resistivity method with schlumberger configuration. Data acquisition was carried out at 16 line with a length of each line is 200 m. Data processing is done using Res2Dinv software and Surfer software. From the results of the study, it can be concluded that from the 16 geoelectric line used, the aquifer layer which can be interpreted as containing groundwater is located between 1035'50'' 1036'40'' South Latitude and 103030'50'' 104031'40'' East Longitude towards the south with a depth of 50 100 meters.","PeriodicalId":403286,"journal":{"name":"Komunikasi Fisika Indonesia","volume":"173 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114309582","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}
Pub Date : 2021-11-30DOI: 10.31258/jkfi.18.3.204-207
Nindy Daviny, E. Erwin
Research on the magnetic susceptibility and size distribution of magnetic nanoparticles of beach sand Sungai Suci Bengkulu has been done. The samples were synthesized using ball milling. Iron oxide and non-iron oxide particles of ball milling products were separated using Neodymium Iron Boron (NdFeB) magnets. Magnetic induction measurement on ball milling products has been carried out using Pasco magnetic probes. Product of NdFeB was milled for 60 hours using milling ball combination of 0.5, 0.7 and 1.5 cm in diameter and the product is called BM1 product. This product was divided into three parts called BM1A, BM1B and BM1C then milled separately for 40 hours using milling balls with diameter of 0.5, 0.7, 1.5 cm, respectively. The products of this ball milling are called BM2A, BM2B, BM2C. The results show that magnetic susceptibility of BM II products increases with increasing milling ball size that is 9215.48 × 10 -5 , 10097.64 × 10 -5 and 11056.86 × 10 -5 for milling ball size of 0.5, 0.7 and 1.5 cm, respectively. The particle size distributions of the samples were determined using the Particle Size Analyzer (PSA). The results show that the distribution of particle size at a percentage of 10% is 0,40 µm and 1,30 µm for BM2A and BM2C, respectively.
{"title":"PENGARUH UKURAN BOLA MILLING TERHADAP NILAI SUSEPTIBILITAS MAGNETIK DAN DISTRIBUSI UKURAN NANOPARTIKEL MAGNETIK DISINTESIS DARI PASIR PANTAI SUNGAI SUCI BENGKULU","authors":"Nindy Daviny, E. Erwin","doi":"10.31258/jkfi.18.3.204-207","DOIUrl":"https://doi.org/10.31258/jkfi.18.3.204-207","url":null,"abstract":"Research on the magnetic susceptibility and size distribution of magnetic nanoparticles of beach sand Sungai Suci Bengkulu has been done. The samples were synthesized using ball milling. Iron oxide and non-iron oxide particles of ball milling products were separated using Neodymium Iron Boron (NdFeB) magnets. Magnetic induction measurement on ball milling products has been carried out using Pasco magnetic probes. Product of NdFeB was milled for 60 hours using milling ball combination of 0.5, 0.7 and 1.5 cm in diameter and the product is called BM1 product. This product was divided into three parts called BM1A, BM1B and BM1C then milled separately for 40 hours using milling balls with diameter of 0.5, 0.7, 1.5 cm, respectively. The products of this ball milling are called BM2A, BM2B, BM2C. The results show that magnetic susceptibility of BM II products increases with increasing milling ball size that is 9215.48 × 10 -5 , 10097.64 × 10 -5 and 11056.86 × 10 -5 for milling ball size of 0.5, 0.7 and 1.5 cm, respectively. The particle size distributions of the samples were determined using the Particle Size Analyzer (PSA). The results show that the distribution of particle size at a percentage of 10% is 0,40 µm and 1,30 µm for BM2A and BM2C, respectively.","PeriodicalId":403286,"journal":{"name":"Komunikasi Fisika Indonesia","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122067146","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}
Pub Date : 2021-11-30DOI: 10.31258/jkfi.18.3.197-203
Sari Agriona, Juandi Muhammad
Maharatu Village, Marpoyan Damai District in Pekanbaru City has the potential for agricultural land, namely secondary crops. These agricultural activities can have an impact on groundwater pollution, this is due to the use of fertilizers on agricultural land which can seep into the underground water system. This study aims to determine water quality based on parameters of PH, COD, BOD, TDS, coli bacteria, turbidity, Fe, Mn, and Pb and to determine soil characteristics based on porosity and permeability. Water and soil samples were collected from Jalan Kartama, Maharatu Village, Marpoyan Damai District, Pekanbaru City. Water samples were taken from one source and soil samples were taken from 5 observation points representing agricultural land at a depth of 10 cm. Analysis of water quality and soil characteristics is descriptive analytic, while the relationship between porosity and permeability characteristics is analyzed by means of correlation analysis. The results showed that the water quality for all parameters was good except for the pH parameter which was 3.86 and acidic. Soil characteristics show that the largest porosity value is 38.26% and the smallest porosity value is 22.0%, while the maximum soil permeability value is 9.93 cm / hour and the minimum soil permeability is 1.22 cm/hour. Both data show that the relationship between permeability and porosity is directly proportional, the greater the permeability, the greater the porosity value.
{"title":"SURVEI HYDROCHEMICAL AIR TANAH DANGKAL DAN SIFAT KARAKTERISTIK TANAH DILAHAN PERTANIAN PALAWIJA DI MARPOYAN DAMAI","authors":"Sari Agriona, Juandi Muhammad","doi":"10.31258/jkfi.18.3.197-203","DOIUrl":"https://doi.org/10.31258/jkfi.18.3.197-203","url":null,"abstract":"Maharatu Village, Marpoyan Damai District in Pekanbaru City has the potential for agricultural land, namely secondary crops. These agricultural activities can have an impact on groundwater pollution, this is due to the use of fertilizers on agricultural land which can seep into the underground water system. This study aims to determine water quality based on parameters of PH, COD, BOD, TDS, coli bacteria, turbidity, Fe, Mn, and Pb and to determine soil characteristics based on porosity and permeability. Water and soil samples were collected from Jalan Kartama, Maharatu Village, Marpoyan Damai District, Pekanbaru City. Water samples were taken from one source and soil samples were taken from 5 observation points representing agricultural land at a depth of 10 cm. Analysis of water quality and soil characteristics is descriptive analytic, while the relationship between porosity and permeability characteristics is analyzed by means of correlation analysis. The results showed that the water quality for all parameters was good except for the pH parameter which was 3.86 and acidic. Soil characteristics show that the largest porosity value is 38.26% and the smallest porosity value is 22.0%, while the maximum soil permeability value is 9.93 cm / hour and the minimum soil permeability is 1.22 cm/hour. Both data show that the relationship between permeability and porosity is directly proportional, the greater the permeability, the greater the porosity value.","PeriodicalId":403286,"journal":{"name":"Komunikasi Fisika Indonesia","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125922094","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：