Pub Date : 2024-05-11DOI: 10.20527/jtiulm.v9i1.206
Putri Julisa Martadina, S. Aslamiyah
Educational institutions as learning centers are prepared so they keep up through developments, especially regarding the use of information systems which are expected to facilitate the completion of work effectively and in an efficient time so institutions can improve their quality achievements. In this case, SMK Muhammadiyah 8 Siliragung experienced issues in the counselling division regarding recording violations and sanctions which required plenty of time to process and search for the required documents manually. To overcome issues, an information system for recording, as well as storing the history of violations carried out in a computerized manner efficiently to search for history data. This system development uses waterfall development methodology with a MySQL storage database and WEB-based PHP programming language. This research succeeded in identifying the needs through data collection methods, analysis of needs planning and observation meanwhile the system is equipped with a login and logout, a student data, a record, an administration letter, as well as a problematic student data report feature with a violation filter. This information system have been to overcome the issues.
教育机构作为学习中心，必须做好准备，跟上时代发展的步伐，特别是在信息系统的使用方面，这些系统应有助于有效和及时地完成工作，从而提高教育机构的工作质量。在这种情况下，SMK Muhammadiyah 8 Siliragung 在咨询部门遇到了有关记录违规和处罚的问题，这需要大量时间手动处理和搜索所需文件。为了解决这些问题，需要建立一个信息系统来记录和存储违规行为的历史记录，并以计算机化的方式有效地搜索历史数据。该系统的开发采用瀑布式开发方法，使用 MySQL 存储数据库和基于 WEB 的 PHP 编程语言。这项研究通过数据收集方法、需求规划分析和观察，成功地确定了需求，同时该系统配备了登录和注销、学生数据、记录、管理信函以及带有违规过滤功能的问题学生数据报告功能。该信息系统已经克服了这些问题。
{"title":"WEBSITE DESIGN INFORMATION SYSTEM OF RECORDING OFFENS AND PUNISHMENT STUDENTS SMK MUHAMMADIYAH 8 SILIRAGUNG USE WATERFALL DEVELOPMENT METHOD","authors":"Putri Julisa Martadina, S. Aslamiyah","doi":"10.20527/jtiulm.v9i1.206","DOIUrl":"https://doi.org/10.20527/jtiulm.v9i1.206","url":null,"abstract":"Educational institutions as learning centers are prepared so they keep up through developments, especially regarding the use of information systems which are expected to facilitate the completion of work effectively and in an efficient time so institutions can improve their quality achievements. In this case, SMK Muhammadiyah 8 Siliragung experienced issues in the counselling division regarding recording violations and sanctions which required plenty of time to process and search for the required documents manually. To overcome issues, an information system for recording, as well as storing the history of violations carried out in a computerized manner efficiently to search for history data. This system development uses waterfall development methodology with a MySQL storage database and WEB-based PHP programming language. This research succeeded in identifying the needs through data collection methods, analysis of needs planning and observation meanwhile the system is equipped with a login and logout, a student data, a record, an administration letter, as well as a problematic student data report feature with a violation filter. This information system have been to overcome the issues.","PeriodicalId":330464,"journal":{"name":"Jurnal Teknologi Informasi Universitas Lambung Mangkurat (JTIULM)","volume":"113 28","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140987899","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 : 2024-05-11DOI: 10.20527/jtiulm.v9i1.205
Josseano Amakora Koli Parera, Tommy Maulidyanto
Multimedia technology continues to advance, one of which is Augmented Reality (AR) technology, commonly known as the technology for merging virtual objects into the real world. Building brochures, which only display building photos and are visible from only one side, require us to visit the building to view its structure. Therefore, an idea emerged for a design of an application that uses Android-based Augmented Reality technology. This application allows users to view a more realistic physical shape of the building without visiting it directly by directing the camera towards a marker displaying the building's logo and showing a 3D model of the Dipanegara University building. It also provides general information about the building. This application is designed using 3DS Max, Unity, and Vuforia SDK, making it easier for prospective students to view the building's layout. Keywords : 3DS Max, Android, Augmented Reality, Unity, Visualization.
{"title":"AUGMENTED REALITY TECHNOLOGY FOR VISUALIZING DIPANEGARA UNIVERSITY BUILDINGS","authors":"Josseano Amakora Koli Parera, Tommy Maulidyanto","doi":"10.20527/jtiulm.v9i1.205","DOIUrl":"https://doi.org/10.20527/jtiulm.v9i1.205","url":null,"abstract":"Multimedia technology continues to advance, one of which is Augmented Reality (AR) technology, commonly known as the technology for merging virtual objects into the real world. Building brochures, which only display building photos and are visible from only one side, require us to visit the building to view its structure. Therefore, an idea emerged for a design of an application that uses Android-based Augmented Reality technology. This application allows users to view a more realistic physical shape of the building without visiting it directly by directing the camera towards a marker displaying the building's logo and showing a 3D model of the Dipanegara University building. It also provides general information about the building. This application is designed using 3DS Max, Unity, and Vuforia SDK, making it easier for prospective students to view the building's layout. \u0000 \u0000Keywords : 3DS Max, Android, Augmented Reality, Unity, Visualization.","PeriodicalId":330464,"journal":{"name":"Jurnal Teknologi Informasi Universitas Lambung Mangkurat (JTIULM)","volume":" 542","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140989607","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 : 2024-05-11DOI: 10.20527/jtiulm.v9i1.204
Eka Fitrajaya Rahman, Hanum Salsabilla, H. W. Prabawa
Education legislation in Indonesia currently requires Informatics subjects, which is closely related to programming-based material. However, many students in Indonesia still have difficulty learning about programming material. One of them is due to the background of students about the ability to think in the process of solving a program code. Seeing the phenomenon of today's students who are active on social media, it is a good step if social media is used as a learning media platform. This study aims to analyze the improvement of design thinking skills by using educational content-based learning media. The research method used was R&D with the ADDIE media development model and One Group Pretest-Posttest as the research design. The results showed an increase after students were given treatment in the form of educational content based learning media. The Kruskal Wallis test results showed a significant difference between the upper class, middle class, and lower class. The N-Gain obtained in the upper class is 0.560, in the middle class is 0.505, and in the lower class is 0.303. The average value of the results of student responses to learning media is 96.59 percent with the category "Very Good".
{"title":"KRUSKAL WALLIS ANALYSIS TO FIND OUT THE IMPROVEMENT OF DESIGN THINKING SKILLS IN OBJECT-ORIENTED PROGRAMMING MATERIALS THROUGH EDUCATIONAL CONTENT","authors":"Eka Fitrajaya Rahman, Hanum Salsabilla, H. W. Prabawa","doi":"10.20527/jtiulm.v9i1.204","DOIUrl":"https://doi.org/10.20527/jtiulm.v9i1.204","url":null,"abstract":"Education legislation in Indonesia currently requires Informatics subjects, which is closely related to programming-based material. However, many students in Indonesia still have difficulty learning about programming material. One of them is due to the background of students about the ability to think in the process of solving a program code. Seeing the phenomenon of today's students who are active on social media, it is a good step if social media is used as a learning media platform. This study aims to analyze the improvement of design thinking skills by using educational content-based learning media. The research method used was R&D with the ADDIE media development model and One Group Pretest-Posttest as the research design. The results showed an increase after students were given treatment in the form of educational content based learning media. The Kruskal Wallis test results showed a significant difference between the upper class, middle class, and lower class. The N-Gain obtained in the upper class is 0.560, in the middle class is 0.505, and in the lower class is 0.303. The average value of the results of student responses to learning media is 96.59 percent with the category \"Very Good\". ","PeriodicalId":330464,"journal":{"name":"Jurnal Teknologi Informasi Universitas Lambung Mangkurat (JTIULM)","volume":" 30","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140990269","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 : 2024-05-11DOI: 10.20527/jtiulm.v9i1.209
Vicka Karina
Academic planning is an essential aspect that needs to be carried out to plan the teaching and learning process in a campus, such as the admission of new students through the SNMPTN. At Lambung Mangkurat University, it is known that the partici- pants who took the SNMPTN during the 2021 admission period amounted to 7,703. It is recognized that selecting candidates is not easy due to many prospective students passing the selection but choosing to withdraw. Therefore, a system is needed to predict the graduation of prospective students through the SNMPTN. This research utilizes the Random Forest method to predict the graduation of prospective students through the SNMPTN. The data will be divided into 90% for training data and 10% for testing data, then using classification parameters with 300 n-estimators. The research yielded a precision value of 0.72, recall value of 0.46, and system accuracy of 89.3% For further research recommendations, other prediction methods can be explored to forecast the graduation rate of students through the SNMPTN, or a comparison of methods can be con- ducted to determine which method is more effective.
{"title":"APPLICATION OF RANDOM FOREST METHOD TO PREDICTION OF STUDENT CANDIDATES ACCEPTED IN THE SNMPTN PATHWAY (CASE STUDY AT UNIVERSITAS LAMBUNG MANGKURAT)","authors":"Vicka Karina","doi":"10.20527/jtiulm.v9i1.209","DOIUrl":"https://doi.org/10.20527/jtiulm.v9i1.209","url":null,"abstract":"Academic planning is an essential aspect that needs to be carried out to plan the teaching and learning process in a campus, such as the admission of new students through the SNMPTN. At Lambung Mangkurat University, it is known that the partici- pants who took the SNMPTN during the 2021 admission period amounted to 7,703. It is recognized that selecting candidates is not easy due to many prospective students passing the selection but choosing to withdraw. Therefore, a system is needed to predict the graduation of prospective students through the SNMPTN. This research utilizes the Random Forest method to predict the graduation of prospective students through the SNMPTN. The data will be divided into 90% for training data and 10% for testing data, then using classification parameters with 300 n-estimators. The research yielded a precision value of 0.72, recall value of 0.46, and system accuracy of 89.3% For further research recommendations, other prediction methods can be explored to forecast the graduation rate of students through the SNMPTN, or a comparison of methods can be con- ducted to determine which method is more effective.","PeriodicalId":330464,"journal":{"name":"Jurnal Teknologi Informasi Universitas Lambung Mangkurat (JTIULM)","volume":" 576","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140989199","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 : 2024-05-11DOI: 10.20527/jtiulm.v9i1.197
Rini W, Liptia Venica, Rizki Hikmawan
The company website has an important role in the business processes that occur in the company, one of which is managing employee productivity. PT.XYZ utilizes the Kaizen website to improve the quality of its employees. Assessment of user experience while operating the website can be a form of evaluation between expectations and actual conditions related to website feasibility. In this study, the researcher intends to find out what indicators are obstacles in the operation of a web-based application called the Kaizen website at PT.XYZ so that there is inefficiency in its use. This research involved 54 respondents who were employees of PT.XYZ. The combination of HEART and Usability Testing methods is used to identify obstacles experienced by users and evaluate user experience when using the Kaizen website. The results of the analysis are then used to improve website performance in order to create a good user experience. The results showed that the HEART score increased by an average of 9% on each variable. Usability testing assessment also shows that the Kaizen website reaches the acceptable category with a score of 90.5 after improvements are made.
{"title":"IDENTIFYING AND FIXING UX-FRICTION EMPLOYEE DEVELOPMENT WEBSITE WITH MIXED APPROACH HEART FRAMEWORK AND USABILITY TESTING","authors":"Rini W, Liptia Venica, Rizki Hikmawan","doi":"10.20527/jtiulm.v9i1.197","DOIUrl":"https://doi.org/10.20527/jtiulm.v9i1.197","url":null,"abstract":"The company website has an important role in the business processes that occur in the company, one of which is managing employee productivity. PT.XYZ utilizes the Kaizen website to improve the quality of its employees. Assessment of user experience while operating the website can be a form of evaluation between expectations and actual conditions related to website feasibility. In this study, the researcher intends to find out what indicators are obstacles in the operation of a web-based application called the Kaizen website at PT.XYZ so that there is inefficiency in its use. This research involved 54 respondents who were employees of PT.XYZ. The combination of HEART and Usability Testing methods is used to identify obstacles experienced by users and evaluate user experience when using the Kaizen website. The results of the analysis are then used to improve website performance in order to create a good user experience. The results showed that the HEART score increased by an average of 9% on each variable. Usability testing assessment also shows that the Kaizen website reaches the acceptable category with a score of 90.5 after improvements are made.","PeriodicalId":330464,"journal":{"name":"Jurnal Teknologi Informasi Universitas Lambung Mangkurat (JTIULM)","volume":"117 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140987963","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 : 2024-05-11DOI: 10.20527/jtiulm.v9i1.210
Eka Setya Wijaya, Mochamad Fajar Al-Amin
{"title":"CLASSIFICATION OF STUDENT STUDY PERIOD USING NEURAL NETWORK BACKPROPAGATION ALGORITHM BASED ON ENTRY PATH (CASE STUDY: FACULTY OF ENGINEERING, UNIVERSITAS LAMBUNG MANGKURAT)","authors":"Eka Setya Wijaya, Mochamad Fajar Al-Amin","doi":"10.20527/jtiulm.v9i1.210","DOIUrl":"https://doi.org/10.20527/jtiulm.v9i1.210","url":null,"abstract":"","PeriodicalId":330464,"journal":{"name":"Jurnal Teknologi Informasi Universitas Lambung Mangkurat (JTIULM)","volume":" 1058","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140988684","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 : 2024-05-11DOI: 10.20527/jtiulm.v9i1.199
Nihayah Afarini, Djarot Hindarto
Developments in the field of artificial intelligence and deep learning, particularly Convolutional Neural Networks (CNN) techniques, have expanded the research potential and applications in ecology, including efficient and accurate insect classification. However, there are challenges in achieving high levels of accuracy with similar computational efficiency. In response, the efficient MobileNetV3 architecture was investigated to improve the insect pest classification process. Through an analytical descriptive quantitative approach and insect datasets from Kaggle, this study tested the effectiveness of CNN models optimized with MobileNetV3. The results indicated that the optimized model achieved classification accuracy of up to 90%, with consistent performance between training and validation data and significant loss reduction. With high precision and processing efficiency, this discovery makes a substantial contribution to deep learning applications in the field of intelligent agriculture, promising methodological improvements for other classification problems. Despite offering a promising solution, this study recognizes the limitation in dataset diversity and suggests further exploration with more varied datasets to strengthen the model's application in actual agricultural practices.
{"title":"OPTIMIZATION OF CNN + MOBILENETV3 FOR INSECT IDENTIFICATION: TOWARD HIGH ACCURACY","authors":"Nihayah Afarini, Djarot Hindarto","doi":"10.20527/jtiulm.v9i1.199","DOIUrl":"https://doi.org/10.20527/jtiulm.v9i1.199","url":null,"abstract":"Developments in the field of artificial intelligence and deep learning, particularly Convolutional Neural Networks (CNN) techniques, have expanded the research potential and applications in ecology, including efficient and accurate insect classification. However, there are challenges in achieving high levels of accuracy with similar computational efficiency. In response, the efficient MobileNetV3 architecture was investigated to improve the insect pest classification process. Through an analytical descriptive quantitative approach and insect datasets from Kaggle, this study tested the effectiveness of CNN models optimized with MobileNetV3. The results indicated that the optimized model achieved classification accuracy of up to 90%, with consistent performance between training and validation data and significant loss reduction. With high precision and processing efficiency, this discovery makes a substantial contribution to deep learning applications in the field of intelligent agriculture, promising methodological improvements for other classification problems. Despite offering a promising solution, this study recognizes the limitation in dataset diversity and suggests further exploration with more varied datasets to strengthen the model's application in actual agricultural practices.","PeriodicalId":330464,"journal":{"name":"Jurnal Teknologi Informasi Universitas Lambung Mangkurat (JTIULM)","volume":" 581","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140989194","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 : 2024-05-11DOI: 10.20527/jtiulm.v9i1.208
Rahma Norfaeda, Tommy Maulidyanto, Kartini
Post-mining slopes are susceptible to landslides due to factors such as slope geometry, rock structure, physical and mechanical properties of rocks, and groundwater content. Monitoring of these slopes is essential to prevent broader environmental issues. This research aims to determine the stability of former mining slopes using soil samples from the Mataraman District, Banjar Regency. The technical analysis method focuses on the physical and mechanical properties of soil, supplemented with mine slope design simulations using Slide 6,0 software to ascertain the safety factors from various slope angles. Safety factor analysis considers the smallest cohesion and bulk density values to represent the material strength of the slope. Findings indicate that the post-mining slopes would remain stable and safe provided no additional destabilizing factors are introduced. The slopes maintain a safety factor greater than 2, implying stability even with a steepness up to 70°. Keywords: mining slope stability, safety factor
{"title":"MINE SLOPE DESIGN SIMULATIONS USING SLIDE 6.0 SOFTWARE OF POST-MINING SLOPE STABILITY","authors":"Rahma Norfaeda, Tommy Maulidyanto, Kartini","doi":"10.20527/jtiulm.v9i1.208","DOIUrl":"https://doi.org/10.20527/jtiulm.v9i1.208","url":null,"abstract":"Post-mining slopes are susceptible to landslides due to factors such as slope geometry, rock structure, physical and mechanical properties of rocks, and groundwater content. Monitoring of these slopes is essential to prevent broader environmental issues. This research aims to determine the stability of former mining slopes using soil samples from the Mataraman District, Banjar Regency. The technical analysis method focuses on the physical and mechanical properties of soil, supplemented with mine slope design simulations using Slide 6,0 software to ascertain the safety factors from various slope angles. Safety factor analysis considers the smallest cohesion and bulk density values to represent the material strength of the slope. Findings indicate that the post-mining slopes would remain stable and safe provided no additional destabilizing factors are introduced. The slopes maintain a safety factor greater than 2, implying stability even with a steepness up to 70°. \u0000 \u0000Keywords: mining slope stability, safety factor","PeriodicalId":330464,"journal":{"name":"Jurnal Teknologi Informasi Universitas Lambung Mangkurat (JTIULM)","volume":" September","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140989949","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 : 2024-05-11DOI: 10.20527/jtiulm.v9i1.202
Tommy Maulidyanto
The Boto area, Jatiroto District, Wonogiri Regency, Central Java, Indonesia, is a traditional gold mining site with inadequate waste management practices, particularly mercury usage. This study aims to assess mercury contamination and evaluate phytoremediation potential in the area. Geological mapping, petrographic analysis, fossil analysis, stereographic analysis, soil Hg measurement, soil and water chemistry analysis, and XRF analysis were conducted to characterize the geology, geomorphology, and heavy metal distribution. The study area is divided into four geomorphological units: Intrusive Hill Unit (V1), Homoklin Hill Unit (S1), Karst Hill Unit (K1), and Alluvial Plain Unit (F1). Stratigraphically, the area consists of the Nglanggeran Breccia Unit interbedded with early Miocene lava, the early Miocene andesite Intrusion Unit with a terrestrial depositional environment, the Wonosari Limestone Unit of Middle-Late Miocene age, and the Holocene Alluvial Deposit Unit. Geological structures include left-lateral normal faults trending relatively north-south (Sesar Boto), left-lateral normal faults trending southeast-northwest (Sesar Brenggolo), and right-lateral downthrown faults trending southeast-northwest (Sesar Mesu). Fractures and veins are also present. Mercury (Hg), manganese (Mn), arsenic (As), and lead (Pb) distribution mapping was conducted. The contaminated zone falls into TCLP-A, and waste management falls into category 1, located in Boto Village, which is a gold mining and processing area. Phytoremediation is proposed as a remediation strategy. Keywords: gold mining, heavy metals, XRF, phytoremediation, distribution
{"title":"GEOLOGY AND THE STUDY OF HEAVY METAL IMPACTS ON ENVIRONMENTAL QUALITY ASSESSMENT USING ARCGIS FOR INTERPRETATION DISTRIBUTION","authors":"Tommy Maulidyanto","doi":"10.20527/jtiulm.v9i1.202","DOIUrl":"https://doi.org/10.20527/jtiulm.v9i1.202","url":null,"abstract":"The Boto area, Jatiroto District, Wonogiri Regency, Central Java, Indonesia, is a traditional gold mining site with inadequate waste management practices, particularly mercury usage. This study aims to assess mercury contamination and evaluate phytoremediation potential in the area. Geological mapping, petrographic analysis, fossil analysis, stereographic analysis, soil Hg measurement, soil and water chemistry analysis, and XRF analysis were conducted to characterize the geology, geomorphology, and heavy metal distribution. The study area is divided into four geomorphological units: Intrusive Hill Unit (V1), Homoklin Hill Unit (S1), Karst Hill Unit (K1), and Alluvial Plain Unit (F1). Stratigraphically, the area consists of the Nglanggeran Breccia Unit interbedded with early Miocene lava, the early Miocene andesite Intrusion Unit with a terrestrial depositional environment, the Wonosari Limestone Unit of Middle-Late Miocene age, and the Holocene Alluvial Deposit Unit. Geological structures include left-lateral normal faults trending relatively north-south (Sesar Boto), left-lateral normal faults trending southeast-northwest (Sesar Brenggolo), and right-lateral downthrown faults trending southeast-northwest (Sesar Mesu). Fractures and veins are also present. Mercury (Hg), manganese (Mn), arsenic (As), and lead (Pb) distribution mapping was conducted. The contaminated zone falls into TCLP-A, and waste management falls into category 1, located in Boto Village, which is a gold mining and processing area. Phytoremediation is proposed as a remediation strategy. \u0000Keywords: gold mining, heavy metals, XRF, phytoremediation, distribution","PeriodicalId":330464,"journal":{"name":"Jurnal Teknologi Informasi Universitas Lambung Mangkurat (JTIULM)","volume":" 13","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140988218","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 : 2023-05-02DOI: 10.20527/jtiulm.v8i1.158
Arief Trisno Eko Suryo
This paper discusses the mitigation of voltage sag in distribution systems. Voltage sag often occurs due to a single line-to-ground short circuit fault. The fault has a major impact on load damage in the Pujon feeder line. Voltage sag can be mitigated by using Dynamic Voltage Restorer (DVR). DVR is one type of custom device that is effective in overcoming voltage sag. DVR requires control in regulating voltage recovery on the Pujon line. This research proposes DVR control using Hysteresis combined with ANN to mitigate voltage sag on Pujon line. Simulation results show that the Hysteresis-ANN control is able to recover the load voltage in phase R on average by 97% due to voltage sag that occurs on the Pujon feeder line.
{"title":"MITIGATION VOLTAGE SAG USING DVR WITH HYSTERESIS-ANN CONTROL ON DISTRIBUTION SYSTEM PUJON FEEDER LINE","authors":"Arief Trisno Eko Suryo","doi":"10.20527/jtiulm.v8i1.158","DOIUrl":"https://doi.org/10.20527/jtiulm.v8i1.158","url":null,"abstract":"This paper discusses the mitigation of voltage sag in distribution systems. Voltage sag often occurs due to a single line-to-ground short circuit fault. The fault has a major impact on load damage in the Pujon feeder line. Voltage sag can be mitigated by using Dynamic Voltage Restorer (DVR). DVR is one type of custom device that is effective in overcoming voltage sag. DVR requires control in regulating voltage recovery on the Pujon line. This research proposes DVR control using Hysteresis combined with ANN to mitigate voltage sag on Pujon line. Simulation results show that the Hysteresis-ANN control is able to recover the load voltage in phase R on average by 97% due to voltage sag that occurs on the Pujon feeder line.","PeriodicalId":330464,"journal":{"name":"Jurnal Teknologi Informasi Universitas Lambung Mangkurat (JTIULM)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125734981","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：