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121	Engineering	ABS-211
The Treatment of Wastewater from Petroleum Industry Sewer System using Subsurface Flow Constructed Wetland to Remove Total Petroleum Hydrocarbon (TPH) Khansa Kinayung, Ayu Utami, Wisnu Aji Dwi Kristanto, Wiji Raharjo, RR Desi Kumala Isnaini Universitas Pembangunan Nasional Veteran Yogyakarta Abstract Keywords: Total Petroleum Hydrocarbon, Wastewater, Sub Surface Flow Constructed Wetland, Petroleum Industry Share Link | Plain Format | Corresponding Author (Ayu Utami)

122	Engineering	ABS-213
Landsat 8 Satellite Imagery for Geothermal Potential and Volcanic Monitoring at Mount Talang, West Sumatra Dian Rahma Yoni (a*), Lysa Dora Ayu Nugraini (b), Shenny Linggasari (c) a)Geological Engineering Department, University of Pembangunan Nasional ^Veteran^ Yogyakarta, Yogyakarta, Indonesia *dian.rahma[at]upnyk.ac.id b)Geomatics Engineering Department, University of Pembangunan Nasional ^Veteran^ Yogyakarta, Yogyakarta, Indonesia c)Mining Engineering Department, University of Pembangunan Nasional ^Veteran^ Yogyakarta, Yogyakarta, Indonesia Abstract This study aims to identify geothermal anomalies at Mount Talang, West Sumatra, using remote sensing methods with Landsat 8 satellite imagery through the analysis of the Normalized Difference Vegetation Index (NDVI) and Land Surface Emissivity (LSE). Mount Talang is an active volcano in Indonesia that requires continuous monitoring for disaster mitigation. The method involves processing thermal and reflective data from Landsat 8 to calculate NDVI as an indicator of vegetation health and LSE to detect emissivity variations associated with geothermal activity. This analysis employs atmospheric correction techniques and thermal anomaly mapping to ensure accurate results. The findings reveal several areas with elevated surface temperatures and low NDVI values, indicating potential geothermal activity in those regions. These anomalies are detected to aid in monitoring the volcano and identifying geothermal potential. The study concludes that using Landsat 8 satellite imagery combined with NDVI and LSE analysis is an effective tool for monitoring geothermal anomalies in volcanic areas, offering a cost-effective and efficient method for assessing volcanic activity and geothermal potential. Keywords: Remote Sensing- Geothermal- Mount Talang- Landsat 8- NDVI Share Link | Plain Format | Corresponding Author (Dian Rahma Yoni)

123	Engineering	ABS-214
Petrography Study of Metasedimentary Rocks from Eastern Part of Seram Island, Indonesia: Insight into the Paleoclimate Condition Desi Kumala Isnani (a*), Afrilita (a), Muhammad Zakiy Yusrizal (b), Dian Purnami Handayani (c), Salsa Ine Safira (a), Dhani Ariyanto (a), Bima Wicaksana (a), Muhammad Luthfi (b), Sugeng Sapto Surjono (d), I Wayan Warmada (d) a) Geological Engineering Department, Universitas Pembangunan Nasional Veteran Yogyakarta *rr.desi[at]upnyk.ac.id b)Petroleum Engineering Department, Universitas Pembangunan Nasional Veteran Yogyakarta c) Chemical Engineering Department, Universitas Pembangunan Nasional Veteran Yogyakarta Jalan Padjajaran, Yogyakarta 55283, Indonesia d) Geological Engineering Department, Universitas Gadjah Mada Jalan Grafika 2, Yogyakarta 55281, Indonesia Abstract Analyzing metasedimentary rocks provides critical insights into Earth^s climatic history. This research focuses on petrographic examination of samples from eastern Seram Island, Indonesia. Detailed thin-section analysis, mineral composition, and textures aim to reconstruct paleoclimate conditions during deposition and metamorphism. The analysis reveals distinct mineral assemblages and textures indicative of specific pressure-temperature conditions. Samples are classified as lithic wacke, lithic arenite, and sublitharenite. Quartz (Q) ranges from 35.48% to 76.09%, lithic fragments (L) from 6.52% to 53.22%, and feldspar (F) from 2.81% to 18.33%. Plotting the detrital modes on ternary diagrams indicates predominantly humid and tropical paleoclimate conditions, suggested by high quartz content and intense chemical weathering. The presence of lithic fragments suggests increased sedimentary input from active orogenic sources.This study highlights the importance of metasedimentary rocks as archives of paleoclimatic information, contributing to understanding Earth^s climatic evolution. Keywords: Metasedimentary rocks- Petrographic examination- Seram Island- Paleoclimate Share Link | Plain Format | Corresponding Author (Desi Kumala Isnani)

124	Engineering	ABS-216
The Reservoir Potential of Ngrayong Formation: Surface Data Integration Wahyuni Annisa Humairoh, Istiana, Fauzan Irfandy, Aga Rizky, Daniel Radityo Universitas Pembangunan Nasional Veteran Yogyakarta Abstract The Ngrayong Formation is one of the main reservoirs in the North East Java Basin. In several areas, it has been found that the sandstone interval has low resistivity values, which is generally immediately interpreted as a wet reservoir (does not contain hydrocarbons). To understand this condition, several methods such as XRD analysis and petrography are used to see the potential conductive mineral content in the reservoir. the absence of hydrocarbon content may not cause the Ngrayong Formation in several areas which have low resistivity values, but reservoirs containing hydrocarbons have the same resistivity values or even lower than reservoirs containing water caused by conductive minerals. Conductive minerals present: siderite, pyrite, and glauconite, which are thought to be one of the causes of low resistivity cases in the Ngrayong Formation. Keywords: Ngrayong, Low Resistivity Reservoir, Facies Share Link | Plain Format | Corresponding Author (Wahyuni Annisa Humairoh)

125	Engineering	ABS-217
The Influence of Production Fluid Loading on the Stroke Per Minute (SPM) of Reciprocating Pumps for Optimization in Mature Wells Dr. Ir. H. KRT Nur Suhascaryo, M.T.,Dr. Ir. Suwardi, M.T., Dr. Ir. Adi Ilcham, S.T., M.T., Ursa Taufik Ghifari, S.T., Gevin Valdanty UPN ^Vetaran^ Yogyakarta Abstract ABSTRAC This study examines the impact of fluid loading on the performance of Sucker Rod Pump (SRP), specifically analyzing Stroke Per Minute (SPM) variations. Conducted at a simulation well in Taman Museum Geoteknologi Mineral, UPN ^Veteran^ Yogyakarta, the research evaluates how different fluid loads affect SRP efficiency. With a constant fluid load of 1.5 liters, varying SPM values were observed: 12, 11, and 10. The data reveals that as fluid loading increases, the SPM decreases, indicating a reduction in the pump^s operational speed and efficiency. The results highlight SRP^s ability to adjust to different fluid loads, ensuring consistent and effective production performance. This adaptability is crucial for maintaining optimal operation in field applications, particularly in conditions where fluid loading can vary. These findings contribute to optimizing SRP performance and enhancing production stability across diverse operational scenarios. Keywords: Sucker Rod Pump, Oil, Artificial Lift Share Link | Plain Format | Corresponding Author (KRT NUR SUHASCARYO)

126	Engineering	ABS-221
Assessment of Acid Mine Drainage Formation for Sustainable Mine Closure Practices Oktarian Wisnu Lusantono (a*), Shenny Linggasari (a), Vinansius Jimmy Jati (b), Dimas Sih Nugroho (b) a) Mining Engineering Department, UPN Veteran Yogyakarta Jalan Padjajaran 104 Sleman 55281, Indonesia b) PT Studio Mineral Batubara, Plemburan Tegal No 67 Sleman 55284, Indonesia Abstract Acid Mine Drainage (AMD) represents a significant environmental challenge associated with mining activities, particularly in the context of mine closure. The formation of AMD occurs when sulfide minerals, exposed to air and water, undergo oxidation, leading to the production of sulfuric acid. This acid can leach heavy metals and other toxic elements from surrounding rocks, posing severe risks to water quality, ecosystems, and human health. Sustainable mine closure practices necessitate a comprehensive understanding of AMD processes to prevent long-term environmental degradation. This assessment examines the factors influencing AMD formation, including the mineralogy of the ore body, geochemical conditions, and hydrological factors. It also explores the predictive models used to evaluate AMD potential and the effectiveness of various mitigation strategies. Key approaches include the isolation of reactive sulfide materials from oxygen and water, the use of alkaline materials to neutralize acidity, and the implementation of passive and active treatment systems for contaminated water. The study underscores the importance of early planning and continuous monitoring in mine closure operations. By integrating AMD management into the broader framework of sustainable mining, the long-term impacts on the environment can be minimized. This includes employing best practices in waste rock and tailings management, ensuring that closure plans are adaptable to changing conditions, and involving stakeholders in decision-making processes. Keywords: Acid mine drainage, mine closure, geochemical Share Link | Plain Format | Corresponding Author (Oktarian Wisnu Lusantono)

127	Engineering	ABS-222
Multi Objective Optimization of Physical Work Environment Parameters to Minimize Driver Fatigue in the Logistics Industry Intan Berlianty, Irwan Soejanto, Indun Titisariwati, Wahyu Tri Utami, Mohammad Kamil Insani, Favian Ersanta Andhika Putra Universitas Pembangunan Nasional Veteran Yogyakarta Abstract Driver fatigue is a critical issue in the logistics industry, often exacerbated by suboptimal physical work environment conditions. This study employs a Multi Objective Optimization (MOO) approach to minimize driver fatigue by optimizing key environmental parameters specifically, noise levels and ambient temperature. Data were synthesized to reflect a range of conditions typically encountered in logistics operations, with noise levels ranging from 75 to 85 decibel and temperatures from 25 to 27 degree Celsius. Driver fatigue was quantified using the Cardiovascular Load (CVL) index, with an analysis showing that higher noise levels and temperatures significantly increase CVL, indicating higher fatigue levels. Using quadratic regression models, the relationship between environmental factors and CVL was modeled to serve as the foundation for optimization. The MOO approach identified that maintaining noise levels at approximately 84.5 decibel and temperatures around 26.5 degree Celsius could effectively minimize driver fatigue, reducing the CVL significantly. These findings offer valuable insights for logistics companies seeking to enhance driver well being and operational efficiency through targeted environmental interventions. Keywords: Multi Objective Optimization, Driver Fatigue, Cardiovascular Load, Noise, Temperature, Logistics Industry Share Link | Plain Format | Corresponding Author (Intan Berlianty)

128	Engineering	ABS-225
Risk Analysis along Mataram Fault in Yogyakarta, Indonesia Hasan Tri Atmojo, Eko Wibowo, Naufal Setiawan, Rolan Mart S., Kristanto J. S., Daniel Radityo UPN Veteran Yogyakarta Jl. Padjajaran, Sleman, Yogyakarta, Indonesia. 55283 Abstract The Mataram Fault is a newly identified fault that stretches from west to east of Yogyakarta City. Limited data on the existence of this fault is important to be able to identify mitigation of the dangers that may arise. Therefore, it is necessary to conduct a study regarding the existence of the Mataram Fault to identify the danger zone in order to reduce the impact of risks that might be caused by an earthquake. The method used to identify the existence of the Mataram Fault is geomagnetic and long-term InSAR methods. The geomagnetic method is used to obtain subsurface conditions around Yogyakarta City to be able to see geomagnetic anomalies that can indicate the fault, while long-term InSAR is used to monitor movements that occur in the Mataram Fault area based on satellite imagery. As for risk mitigation from the dangers posed, a study was carried out using soil investigation data in the Mataram Fault area. The hazard risk assessment carried out was by carrying out liquefaction analysis for the area around the fault using drilling data. Based on geomagnetic data, it shows that there is a straightening of the Mataram Fault, however the pattern shown is segmented and not all of it is in an east - west direction. This shows that the Mataram Fault is separated by several segments and is not a unit. Apart from that, this is supported by the results of the InSAR analysis which shows that there are only certain segments that have experienced deformation in the last seven years. In the study of the danger risk in the Mataram Fault area which has been adjusted to geomagnetic and InSAR data, it was found that the potential danger in the Mataram Fault area tends to be small. Keywords: Mataram fault, liquefaction potential, InSAR Share Link | Plain Format | Corresponding Author (Hasan Atmojo)

129	Engineering	ABS-228
SMART FARMING DEVELOPMENT FOR RICE PLANT FERTILIZER PREDICTION USING GEOSTATISTICS Frans Richard Kodong, Didik Indarwanta, Avianto Kabul Pratiknyo UPN ^Veteran^ Yogyakarta Abstract Nine billion people will live on Earth in 2050. The global population impacted by prolonged food scarcity started to rise in 2014, rising from 775 million in 2015 to 777 million in 2016. It is currently projected that this number will reach 815 million in 2016. About 95% of people in Indonesia eat rice as a staple diet. As a result, policies pertaining to rice now affect the people, making it a strategic issue. Formerly well-known for its agricultural economy, Indonesia is among the emerging nations that is today having significant issues with rice production. Water, new, high-yielding rice varieties, and fertilizers are essential for bolstering national rice production efforts. Macro fertilizers, also known as NPK (Sodium, Phosphorus, and Potassium), have been shown to be useful in raising new, high-yielding kinds of rice, including hybrid rice. However, the effectiveness and efficiency of fertilization are very location-specific. Using their hands to apply NPK fertilizer unevenly and without knowing if specific places require a given dose of NPK, most Indonesian rice farmers still fertilize their rice using the old-fashioned method. Problems related to land area, fertilizer, superior seeds, human resource quality and quantity, and precision agriculture (PA) for agricultural advancement must be addressed strategically in order to solve rice production issues. Water, new, high-yielding rice varieties, and fertilizers are essential for bolstering national rice production efforts. Macro fertilizers, also known as NPK (Sodium, Phosphorus, and Potassium), have been shown to be useful in raising new, high-yielding kinds of rice, including hybrid rice. However, the effectiveness and efficiency of fertilization are very location-specific. The goals of this research are to improve smart agricultural tools, optimize and estimate the amount of fertilizer used (content N, P, and K), and develop a smart rice farm framework by estimating future availability and sustainability of rice fertilizer using geostatistics methods. Quantitative experiments are carried out in greenhouses, labs, and rice fields as part of the study process. The Geostatistics-Kriging method is employed for estimate and optimization. This research led to the creation of the PA Framework for rice plants as well as the development of precision agriculture tools for identifying and tracking the rates of rice growth and the amount of NPK fertilizer in the soil. Keywords: Fertilizer, Geostatistics, Kriging, NPK Share Link | Plain Format | Corresponding Author (Frans Richard Kodong)

130	Engineering	ABS-230
Locations, Processing Methods, and Applications Rare Earth Elements in Indonesia : Review Yasmina Amalia, Muhammad Syukron, Tri Wahyuningsih, Atik Setyani, Dania Hellin Amrina, Hazim Haikal Labib, Ikhwan Pudyastomo, Leona Agudina Wijanarka Department of Metallurgical Engineering, Faculty of Mineral Technology, Universitas Pembangunan Nasional Veteran Yogyakarta Abstract Indonesia is one of the countries with very high potential mineral reserves. In addition to metals such as nickel, gold and copper, Indonesia also has high reserves of rare earth metals and is now in demand worldwide. Rare Earth Element materials are now being sought after because they are considered as basic materials for future technologies that continue to develop. This paper presents an overview of research studies on Rare Earth Element in Indonesia, ranging from the locations of rare metals, processing methods, to application of rare metals. This research uses a literature study method that uses data obtained not from direct observation. The data found is taken from previous research results, then identification and analysis activities are carried out regarding the Rare Earth Element. In recent times, Rare Earth Element minerals have become a topic of discussion, this is because these minerals have become commodities that have economic value and are widely used as raw materials for modern community equipment and technology ranging from computers, cell phones, televisions, environmentally friendly lamps and power plants, and military equipment. Therefore, the description and study of the locations of rare metals, processing methods, and the benefits of Rare Earth Element must be researched as well as possible. Keywords: Processing Methods, Application, Rare Earth Elements, Indonesia Share Link | Plain Format | Corresponding Author (Atik Setyani)

131	Engineering	ABS-232
APPLICATION OF SIX SIGMA METHODOLOGY IN SMALL-SCALE ALUMINUM METAL CASTING INDUSTRY TO REDUCE PRODUCT FAILURE RATE Sadi 1), Gunawan Madyono Putro 1), Eko Nursubiyantoro 1), Indra Kusumawardhani 2), Erikson 1), Adyssa Sekarini Pramodhawardhani 3) 1) Industrial Engineering UPN Veteran Yogyakarta 2) Accounting UPN Veteran Yogyakarta 3) Geological Engineering UPN Veteran Yogyakarta Correspondence: sadi[at]upnyk.ac.id Abstract UD Cantenan^s small-scale aluminum metal casting industry is a manufacturing industry that produces components and handicrafts from aluminum. The problem with this industry is that the quality of the products produced is still low. This research aims to reduce the failure rate of products by improving their quality starting from the process division of raw material preparation, casting, machining and inspection, to improving quality using the Six Sigma methodology. The quality of the product studied was a flat pulley. Data collection was carried out using a questionnaire. The research results showed that the cause of pulley product defects occurred because there had been no procedures and testing of raw materials before further processing, the melting temperature was unstable and procedures for adding additional materials (flux) had not been implemented. The most product defects occur in the casting division, namely dros (pin holes) and porous. Keywords: Metal Casting, Aluminum, Product Quality, Defects, Six Sigma, Failure. Share Link | Plain Format | Corresponding Author (Sadi -)

132	Engineering	ABS-233
Design for Decision Classification Model of Case Complaints Selection at the Badan Penyelesaian Sengketa Konsumen in the City of Yogyakarta Dyah Ayu Irawati, Dhimas Arief Dharmawan, Trismi Ristyowati, Yuli Fauziah UPN Veteran Yogyakarta Abstract This research develops a decision classification model design for selection of consumer case complaints at Badan Penyelesaian Sengketa Konsumen (Consumer Dispute Resolution Agency) in the city of Yogyakarta. This model can accommodate the recommendation process for selection of case complaints involving the BPSK chairman as a decision maker. The results of this research are a Case Decision Classification model which is named the SPKPerkara model. The stages of completing the case complaint selection recommendation process were completed by classification modeling using the Naive Bayes Classifier method, and TOPSIS was used to rank decision alternatives. Testing of the Case SPK Model using Confusion Matrix. Keywords: decision classification model, Naive Bayes Classifier, TOPSIS, Consumer Dispute Resolution Agency, BPSK Yogyakarta Share Link | Plain Format | Corresponding Author (Dyah Ayu Irawati)

133	Engineering	ABS-236
Optimizing Biophotovoltaic Systems: Evaluating Freshwater Green Algae and Marine Diatoms for Enhanced Electricity Generation Muhamad Maulana Azimatun Nur (a)- Dwi Aulia Puspitaningrum (b) (a) Department of Chemical Engineering UPN Veteran Yogyakarta (b) Department of Agrobusiness UPN Veteran Yogyakarta Abstract The demand for sustainable energy has led to exploring biophotovoltaic (BPV) systems utilizing photosynthetic microorganisms. This study evaluated the electricity-generating potential of freshwater green algae and marine diatoms in a BPV system. This research was conducted in an H-type BPV chamber with a Nafion membrane. The initial stage was aimed to evaluate photoanode materials (zinc, nickel, platinum, and carbon), while second stage was aimed to evaluate the kind of microalgae. Results showed that platinum produced the highest voltage (1.3 mV), followed by zinc (0.6 mV), while nickel and carbon were negligible. The second stage revealed that the marine diatom Thalassiosira sp. had the highest current density (0.23 mA), followed by Skeletonema sp. (0.19 mA), Tetraselmis sp. (0.14 mA), and Chlorella sp. (0.12 mA). Increased microalgal biomass correlated with higher voltage and current outputs. Platinum is an effective photoanode material, and Thalassiosira sp. is the most promising strain for BPV applications. Keywords: micoalgae- biophotovoltaic Share Link | Plain Format | Corresponding Author (Muhamad Maulana Azimatun Nur)

134	Engineering	ABS-237
Hydraulic Fracturing Stimulation Planning While Considering Formation Damage Caused by Fracturing Fluid Mia Ferian Helmy (a*), Anas Puji Santoso (a), Bambang Bintarto (a), Susanti Rina Nugraheni (b), Retno Ningtyas Wulandari Moerdiyanto (a) a) Petroleum Engineering Department, UPN ^Veteran^ Yogyakarta, Indonesia *miaferianhelmy[at]upnyk.ac.id b) Chemical Engineering Department, UPN ^Veteran^ Yogyakarta, Indonesia Abstract ^X^ well is a well with a productive sandstone formation with a productuvit index value of 0,1 bfpd/psi. Based on the screening results, hydraulic fracturing stimulation will be conducted on the ^X^ well. In this case, the hydraulic fracturing fluid design is simulated using FracCADE 7.0 software. The method used for designing the fracturing involves studying data covering ^X^ well information about reservoir characteristics and parameters, well data, and rock geomechanic data. For the fracture model, the Perkins, Kern, and Nordgren (PKN) fracture model is used. The proppant design and fracturing fluid selection will be based on the existing database in the software with several conditions. The result were obtained from the YF135.1HTD fracturing fluid of the crosslinked fluid type with Carbolite proppant measuring 12/18 mesh. The geometric model applied uses the PKN method with results of a fracture length of 463,9 ft, fracture height of 9,84 ft, fracture width of 0,37 inch, and fracture conductivity of 77063 md.ft using a total volume of fracturing fluid of 13500 gallons and a total mass of proppant. amounting to 40590 lbs. The required surface injection pressure is 4176,13 psi with an injection rate of 18 bpm and a total pumping time of 20,2 minutes. The performance improvement of the ^X^ well was in the form of average formation permeability from 29,2 mD to 369,4 mD, an increase in productivity index of 6,5 times and an increase in production rate from 50,46 bfpd to 296,48 bfpd. So the planning of the hydraulic fracturing design for the ^X^ Well can be considered for implementation. Keywords: Hydraulic Fracturing- Proppant- Fracturing Fluid- Productivity Index Share Link | Plain Format | Corresponding Author (Fanata Yudha Nugraha)

135	Engineering	ABS-238
GOLD RECOVERY EFFECTIVENESS STUDY ON FLOTATION OF LOW SULFIDE GOLD MINERAL USING EXTRACT LERAK COMPARED TO CHEMICAL REAGENT Tri Wahyuningsih, Setyo Fajar Nurdjati, Wanidya Ni^immallaili H, Riria Zendy Mirahati Metallurgical Engineering Study Program, Department of Mining Engineering, Faculty of Mineral and Energy Technology, Universitas Pembangunan Nasional ^Veteran^ Yogyakarta, Jl. Babarsari 2, Tambakbayan, Depok, Sleman, Yogyakarta, 55281 Abstract The research carried out is one of the stages in the mineral processing process, namely flotation. The flotation process currently carried out still often uses chemicals that can cause contamination and disease. This research is a flotation process using bioreagent in the form of lerak extract. By carrying out this research, it is hoped that it will be useful and inspire companies to switch to using environmentally friendly bioreagents. The sample used in this research is low sulfide gold. This research compares bioreagents from lerak extract and chemical reagents in the form of MIBC. Meanwhile, the fixed variables used are sample weight of 300 grams, grain size fraction -150 + 200 mesh, pH 8 - 9.5, solid percent 35%, and conditioning time 10 minutes. This research was conducted with the aim of determining the effectiveness of lerak extract as a substitute for chemical reagents to increase gold recovery. Keywords: flotation, bioreagent, lerak, gold, friendly Share Link | Plain Format | Corresponding Author (Tri Wahyuningsih Wahyuningsih)

136	Engineering	ABS-240
PERFORMANCE ANALYSIS OF MARKERLESS AUGMENTED REALITY ON MOUNT MERAPI MAKET AT THE CENTER FOR INVESTIGATION AND DEVELOPMENT OF GEOLOGICAL DISASTER TECHNOLOGY Awang Hendrianto Pratomo, Alifia Rahma De Anissa, Eko Teguh Paripurno, Johan Danu Prasetyo Departmrnt of Informatics, Faculty of Industrial Engineering, Universitas Pembangunan Nasional ^Veteran^ Yogyakarta, Indonesia Department of Environmental Egineering, Faculty of Mining Technology, Universitas Pembangunan Nasional ^Veteran^ Yogyakarta, Indonesia Abstract Data from the National Disaster Management Agency recorded that there were 398 deaths, nearly half a million people were displaced and material losses reached IDR 3.5 trillion when Mount Merapi erupted in 2010. This condition requires prevention, one of which is disaster mitigation. Physical information in the real world in a certain time and space, such as natural disasters, is not always visible, so interactive simulations are needed that can be used for disaster mitigation education. One digital media that can be used to provide education on Mount Merapi disaster mitigation is Augmented Reality (AR) with the 3D Object Tracking method. The development method used is the Multimedia Development Life Cycle (MDLC) method which comes from Luther-Sutopo. There are three tests carried out, namely Black Box testing, target testing, and beta testing. In Black Box testing, the success percentage is 100%. In target testing with 24 trials with a success percentage of 87.5%. In Beta testing, the application received a score in terms of functionality of 96%, in terms of appearance of 87.5%, and in terms of user smoothness of 98%. These scores are above average so the application is suitable for use. Keywords: Dissaster Management, Augmented Reality, IoT, Performace Analysis Share Link | Plain Format | Corresponding Author (Awang Hendrianto Pratomo)

137	Engineering	ABS-244
FACTORS THAT INFLUENCE THE IMPLEMEMTATION OF MSME SUSTAINABILITY (CASE STUDY OF YOGYAKARTA SPECIAL REGION) Marita, Ahmad Muhsin, Lita Yulita Fitriyani, Jamzani Sodik UPN ^Veteran^ Yogyakarta Abstract This research aims to test and analyze the influence of education level, understanding of accounting, socialization and information technology on the sustainability of MSMEs. The population in this study consisted of MSMEs in the Special Region of Yogyakarta. The data collection technique involves primary data through questionnaires. The sampling method used in this research was the Slovin formula with a total of 120 respondents. The data analysis method used is multiple linear regression analysis and hypothesis testing with the F test and t test using the IBM Statistical Package for Social Sciences (SPSS) Version 25 software. The research results show that the level of education, understanding of accounting, socialization and information technology have an influence on sustainability in Micro, Small and Medium Enterprises (MSMEs) (Case study of MSMEs in the Special Region of Yogyakarta). Keywords: sustainability, MSMEs, Yogyakarta Share Link | Plain Format | Corresponding Author (Ahmad Muhsin)

138	Engineering	ABS-250
Environmental Damage Analysis Due to Sand Mining in the Progo River Eko Teguh Paripurno1, Nandra Eko Nugroho2, Wahyu Sugeng Triadi3, Gigih Aditya Pratama4, Gandar Mahojwala5 1Master of Disaster Management, UPN Veteran Yogyakarta 2Environmental Engineering, UPN Veteran Yogyakarta 3,4,5Disaster Research, Education, and Management Centre, UPN Veteran Yogyakarta a) correspondence email: paripurno[at]upnyk.ac.id Abstract According to Article 33 paragraph (3) of the 1945 Constitution of the Republic of Indonesia, the earth, water, and the wealth contained therein are controlled by the state and utilized to the greatest extent for the prosperity of the people. Article 28 paragraph (1) states that every citizen has the right to live prosperously, physically and mentally, to reside, and to obtain a good and healthy environment. Mining activities pose a risk of causing negative impacts on environmental damage, including water, air, land, biodiversity, and social aspects. They can become a very serious threat to humans and the environment. The impacts and losses will be greater and more widespread if pollution and/or destruction are not immediately stopped. Keywords: Disaster, Landslide, Environment, Progo River Share Link | Plain Format | Corresponding Author (Gandar Mahojwala)

139	Engineering	ABS-251
Analysis of Potential Land Movements Using the Microseismic Method Muhammad Faizal Zakaria1, Y. Yatini1, Elsha Risnanda2, 3Suharwanto 1Department of Geophysics Engineering, Faculty of Mineral Technology, Universitas Pembangunan Nasional ^Veteran^ Yogyakarta 2Geophysics Department, FMIPA, Universitas Gadjah 3Department of Environmental engineering, Faculty of Mineral Technology, Universitas Pembangunan Nasional ^Veteran^ Yogyakarta Abstract Landslides are disaster events that often occur in the Wonolelo area. One of the landslide disaster mitigation activities is knowing the potential for soil movement of an area using Microseismic because this method can provide subsurface information. This study uses the Microseismic method to determine the potential for soil movement in Wonolelo village. The acquisition of Microseismic data was taken at 15 points Wonolelo area. The acquisition was carried out using a Lennarts 3D/20s broadband frequency Seismometer. After that, the HVSR processing method was carried out to obtain the dominant frequency and amplification values, and the values of the Seismic Vulnerability Index (Kg) and Ground Shear Strain (GSS) were calculated. From the analysis results obtained in the western part of Wonolelo village, there is a high GSS value (10-4) which means that in that area there will be cracks and landslides when an earthquake occurs. The study area has a high GSS value in the west, but the elevation in this area is relatively low. but there is no potential for landslides to occur. Keywords: Microsesismic, GSS, Landslide, Wonolelo Share Link | Plain Format | Corresponding Author (Muhammad Faizal Zakaria)

140	Engineering	ABS-252
IDENTIFICATION IGNEOUS ROCK BASED on 2D and 3D RESISTIVITY ANALYSIS of GEOELECTRIC DATA Fauzi Daffa Hanatha, Y Yatini*) and Suharwanto *Geophysical Engineering, Universitas Pembangunan Nasional Veteran Yogyakarta, Jalan SWK 104 Condongcatur Yogyakarta Abstract The earth^s subsurface can be composed of many rocks, such as igneous rock, sedimentary rock, and metamorphic rock. Determination of rock types at the subsurface is carried out using geophysical methods. This study aims to identify igneous rock using a geoelectric method with a dipole-dipole configuration that utilizes subsurface resistivity values based on analysis of 2D and 3D resistivity cross-sections. The processing uses RES2DINV to get a 2D cross-section and Voxler to get a 3D cross-section. The resistivity value can be divided into four groups, namely very low with values < 100 &#937-m can be interpreted as claystone, low resistivity with values 100 &#937-m - 1000 &#937-m as loose material or sandstone, medium resistivity with values of 1000 &#937-m - 3000 &#937-m as deposits from weathered igneous rocks, and high resistivity with values > 3000 &#937-m as fresh igneous rocks. The distribution of igneous rocks is spread over the western to the southern part of the study area, which is an intrusion based on a 3D cross-section. Keywords: Geoelectric, Dipole-Dipole Configuration, Resistivity, 2D Cross Section, 3D Cross Section. Share Link | Plain Format | Corresponding Author (Muhammad Faizal Zakaria)

141	Engineering	ABS-254
Management of Artisanal Mining Permits in the Special Region of Yogyakarta Province for Non-Metallic and Rock Commodities Wawong Dwi Ratminah, Aldin Ardiyan, Inmarlinianto, Heru Suharyadi Universitas Pembangunan Nasional Veteran Yogyakarta Abstract Artisanal mining activities in Gunung Kidul Regency, Special Region of Yogyakarta, often lack official Artisanal Mining Permits (IPR), leading to environmental degradation, neglect of occupational safety, and social conflicts. This study aims to map the artisanal mining areas in the Special Region of Yogyakarta using mining area data and Geographic Information System (GIS) technology, as well as to analyze the environmental and social impacts of mining activities without IPR. The research methods include data collection from the Department of Energy and Mineral Resources, field surveys, area mapping, data analysis, and interviews with stakeholders. The results indicate that many artisanal mining areas lack IPR, resulting in negative environmental impacts such as land degradation, water pollution, and ecosystem damage, as well as social impacts like community conflicts and occupational safety issues. In conclusion, there is a need for increased monitoring and law enforcement by the government to manage artisanal mining activities sustainably. Policy recommendations include strategies to enhance regulatory compliance and improve monitoring and enforcement. Keywords: Artisanal Mining Permits (IPR), GIS, field surveys, area mapping. Share Link | Plain Format | Corresponding Author (Heru Suharyadi)

142	Engineering	ABS-255
Effect of Fiberglass Type and Nanosilica Content on The Flexural Strength of Glass Fiber Reinforced Polymer Composites Tri Wibawa, Kuncoro Diharjo, Dody Ariawan, Wijang Wisnu Raharjo, Jalu Dewa Noor Wibowo Mechanical Engineering Department., Engineering Faculty, Universitas Sebelas Maret, Surakarta 57126, Indonesia Industrial Engineering Department, Industrial Engineering Faculty, Universitas Pembangunan Nasional ^Veteran^ Yogyakarta, 55281, Indonesia Abstract The development of alternative materials or other materials as a substitute for metal materials is necessary to minimise the shortcomings that exist in them. One of the materials that can be utilised as an alternative to metal materials is composite materials. The purpose of this study is to determine the composition of composites made of glass fibre and nanosilica as reinforcement and unsaturated polyester resin as the right matrix for flexural testing using the Taguchi method.In this study, there are three factors and each factor has three levels with the final output being the determination of the optimal level setting. The data required in this research is composite flexural strength test data and the test results will be analysed using ANOVA.The results of ANOVA calculation of SNR values showed that each factor and interaction between factors had a significant effect on the flexural strength of the composite. The results showed that the optimal setting level was obtained from composites made from (A1), (B1) and (C3). Keywords: Composite, Glass fibre, Unsaturated Polymer Resin, Nanosilika, Taguchi Share Link | Plain Format | Corresponding Author (Tri Wibawa)

143	Social Science	ABS-1
Differences in the Influence of Basketball for Male and Female Students on Improving Physical Fitness Tri Saptono 1, Sumintarsih 2 and Hanafi Mustofa 3 Universitas Pembangunan Nasional ^Veteran^ Yogyakarta Abstract Research objectives: 1) The influence of basketball on improving physical fitness in male students. 2) The influence of basketball on improving physical fitness in female students 3). Differences in the influence of basketball on improving physical fitness between male and female students. This research uses an experimental method. The population in this research is students of the UPN ^Veteran^ Yogyakarta Communication Science Study Program who are taking the Sports II course in basketball. The data analysis technique for this research uses the T Test. Test the prerequisites for data analysis using the normality test and homogeneity test. Research results: 1) The influence of basketball for male students has an average of 2.625 on increasing physical fitness. 2) The influence of basketball for female students has an average of 4.686666667 on increasing physical fitness. 3) The difference in the influence of basketball on improving the physical fitness of male students and female students is 2.061666667. Keywords: Physical Fitness, Basketball Share Link | Plain Format | Corresponding Author (Tri Saptono Saptono)

144	Social Science	ABS-2
The Resource-Based View Approach: Development of Culturally Independent Village Girikerto, Kapanewon Turi, Sleman Regency, through Optimizing Village Potential Sabihaini Sabihaini, Widhy Tri Astuti, Sri Astuti, Yuli Liestyana UPN Veteran Yogyakarta Abstract Girikerto Kapanewon Turi Village, Sleman Regency, is one of the villages designated as a Culturally Independent Village in the Special Region of Yogyakarta. The Independent Cultural Village is an independent village model consisting of four developing pillars: Cultural Village, Tourism Village, Preneur Village, and Prima Village. The aims and objectives of this research are for (1) realizing the Girikerto Cultural Independent Village/District model, sovereign, with integrity and innovation in living and actualizing special values through the utilization of all the resources and cultural wealth owned by involving the active participation of the community in carrying out development and community empowerment in universal sustainability creation, prosperity and peace of citizens in Bhinneka Tunggal Ika- (2) Helping the people of Girikerto to increase their income- (3) seek to assist Girikerto village in identifying the resources it has to optimize the village^s potential and ultimately create a sustainable competitive advantage. Keywords: Resource-based view, culturally independent village, optimization, village potential Share Link | Plain Format | Corresponding Author (Yuli Liestyana)

145	Social Science	ABS-258
Assessing the Development Stage of Public Service Agency at University of National Development ^Veteran^ Yogyakarta: Insights and Suggestions for Service Improvement Sutoyo, Gita Astyka Rahmanda, Agus Santosa, Steven Getha Pradessa UPN Veteran Yogyakarta Abstract This research aims to analyze the capability of the organizational maturity model in improving the competency and quality of service produced of the public service agency (BLU). Utilizing descriptive analysis based on the BLU Maturity Rating framework and its data of relevance, which includes the variables of: Financial Aspects, Service Aspects, Financial Aspects, Governance and Leadership Aspects, Innovation Aspects, and Environmental Aspects. Through this research, the role of the organizational maturity model in improving service quality has been identified, functioning as a guideline for developing organizational capabilities based on the values of competence, collaboration, and sustained development. The BLU Maturity Rating scores produced by University of National Development ^Veteran^ Yogyakarta (UPNVY) for the year 2023 are: 2.25 for Financial Aspects, 4.40 for Service Aspects, 3.75 for Internal Capability Aspects, 2.00 for Governance and Leadership Aspects, 2.50 for Innovation Aspects, and 2.00 for Environmental Aspects. Notable and tangible improvements can be observed on the sectors subjected to the organizational maturity model under BLU Maturity Rating. Keywords: Maturity assessment, Public Service Agency (BLU Share Link | Plain Format | Corresponding Author (Gita Astyka Rahmanda)

146	Social Science	ABS-3
Gender Analysis of Budget Submission Fraud through E-Budgeting: An Experimental Multi-Group Analysis Study Oliver Samuel Simanjuntak, Ida Ayu Purnama, Shely Rizki Hardiana Universitas Pembangunan Nasional Veteran Yogyakarta Abstract Budget submission is an essential part of an organization. Fraud that occurs in the budget submission process is one of the critical causes of worsening organizational performance. Knowing the causes of budget fraud is a preventive step in preventing fraud in the budget submission process. This study takes a gender perspective to examine its influence on budget slack. Applying an experimental method, the findings of this study successfully confirm previous studies that women tend to be more dishonest than men in budget submission. Keywords: gender, dishonesty, fraud, e-budgeting, budget slack Share Link | Plain Format | Corresponding Author (IDA AYU PURNAMA)

147	Social Science	ABS-5
Inclusive and Accessible Urban Tourism in Yogyakarta: A User-Generated Content Analysis Shely Rizki Hardiana(a), Vynska Amalia Permadi(b*), Dian Indri Purnamasari(c), Sri Hastuti(d) a) Management Department, Universitas Pembangunan Nasional Veteran Yogyakarta, Jl. Padjajaran 104, Sleman, Yogyakarta b) Informatics Department, Universitas Pembangunan Nasional Veteran Yogyakarta, Jl. Babarsari 2, Tambakbayan, Sleman, Yogyakarta *vynspermadi[at]upnyk.ac.id c,d) Accounting Department, Universitas Pembangunan Nasional Veteran Yogyakarta, Jl. Padjajaran 104, Sleman, Yogyakarta Abstract Urban tourism, characterised by its diverse offerings and accessibility, has gained significant attention. Museums, as prominent cultural and experiential attractions, play a crucial role in shaping urban tourism experiences. This study investigates the relationship between accessibility and museum tourist satisfaction, focusing on understanding how accessibility influences visitor experiences. By analysing 1,000 data from a user-generated content platform using linear regression, this research explores the impact of accessibility components, such as accessibility for people with disabilities and parking availability, on overall tourist satisfaction. The findings contribute to the growing knowledge on inclusive tourism and provide valuable insights for enhancing visitor experiences in urban museum settings. Keywords: Accessibility, Inclusive Tourism, Museum, Tourist Satisfaction, User-generated content (UGC), Urban Tourism Share Link | Plain Format | Corresponding Author (Vynska Amalia Permadi)

148	Social Science	ABS-262
Bridging Gaps: How Authentic Leadership Transforms Compensation into Performance Dwi Novitasari (a*), Riyan Sisiawan Putra (b), Salma Ika Desmadhani (c), Syavira Sabaya (d) a,b,d) Management Study Program, Nahdlatul Ulama University of Surabaya, Jalan Raya Jemursari No.57, Jemur Wonosari, Wonocolo District, Surabaya, East Java 60237 *d.novietasarie[at]unusa.ac.id c) Management Study Program, Widya Wiwaha School of Economics, Jalan Lowanu Sorosutan UH VI/20, Yogyakarta 55162 Abstract This study examines the role of authentic leadership as a mediator in the relationship between compensation, job satisfaction, and employee performance. The study was conducted at CV. Serelia Prima Nutrisia, Yogyakarta, a company operating in the cereal industry utilizing local raw materials. The research employed a quantitative method with a cross-sectional design, using convenience sampling techniques, and data analysis was performed using the Structural Equation Model (SEM) method. The results indicate that authentic leadership fully mediates the relationship between compensation and job satisfaction with employee performance. Additionally, it was found that compensation and job satisfaction have a direct negative impact on performance. These findings contribute theoretically to the field of human resource management, particularly in understanding the factors that influence employee performance through the mediation of authentic leadership. The practical implications of this study highlight the importance of companies implementing authentic leadership to enhance employee performance. Keywords: Compensation, Satisfaction, Leadership, Performance Share Link | Plain Format | Corresponding Author (Dwi Novitasari)

149	Social Science	ABS-263
The Influence of Business Legality, Halal Labeling on Sales Volume of Micro, Small and Medium Enterprises (UMKM) Products in Sedati District, Sidoarjo Regency Moh. Maruf(a), Riyan Sisiawan Putra(b*), Anusuiya Subramaniam(c), Tri Siwi Agustina(d), Dwi Novitasari(e), Feri Ihsan Muzaki(f), Ana Lailatul Fitriya(g) a) Faculty of Business Economics and Digital Technology, Management Department, Universitas Nahdlatul Ulama Surabaya. Jalan Raya Jemursari Nomer 51 - 57, Surabaya, Indonesia. b*)Faculty of Business Economics and Digital Technology, Management Department, Universitas Nahdlatul Ulama Surabaya. Jalan Raya Jemursari Nomer 51 - 57, Surabaya, Indonesia. riyan_sisiawan[at]unusa.ac.id c) Sekolah Perniagaan dan Ekonomi, Universiti Putra Malaysia 43400 UPM Serdang, Selangor, Malaysia d) Faculty of Economics and Business, Management Department, Airlangga University. Jalan Airlangga No.4 Surabaya, Indonesia. e) Faculty of Business Economics and Digital Technology, Management Department, Universitas Nahdlatul Ulama Surabaya. Jalan Raya Jemursari Nomer 51 - 57, Surabaya, Indonesia. f) Faculty of Business Economics and Digital Technology, Management Department, Universitas Nahdlatul Ulama Surabaya. Jalan Raya Jemursari Nomer 51 - 57, Surabaya, Indonesia. g) Faculty of Business Economics and Digital Technology, Management Department, Universitas Nahdlatul Ulama Surabaya. Jalan Raya Jemursari Nomer 51 - 57, Surabaya, Indonesia. Abstract Micro, Small and Medium Enterprises (MSME) activities are one of the business fields that can develop and be consistent in the economy of a country or region. This research aims to find out the influence of business legality, halal labeling on sales volume in micro, small and medium enterprises (UMKM) products in Sidoarjo Regency. This research uses a survey research design among respondents by distributing questionnaires to consumers who use MSME products in Sidoarjo Regency. The population of this research is consumers of MSME products in Sidoarjo Regency whose number cannot be measured with certainty (unknown population). The sample in this study used the Simple Random Sampling Technique (random sampling) with a total of 79 MSMEs. Business Legality, Halal Labeling has an influence on Sales Volume of Micro, Small and Medium Enterprises (UMKM) Sedati District Products in Sidoarjo Regency. Keywords: Business Legality, Halal Labeling, Sales Volume Share Link | Plain Format | Corresponding Author (Riyan Sisiawan Putra)

150	Social Science	ABS-264
Influence of Organizational Culture, Work Discipline and Competencies on Employee Performance With Motivation as an Intervening Variable Riyan Sisiawan Putra (a*), Tri Siwi Agustina (b), Hidayatul Khusnah (c), Anusuiya Subramaniam (d), Nuzulul Fatimah (e), Khoirotun Nisa (f), Ana Lailatul Fitriya (g) a*) Faculty of Business Economics and Digital Technology, Management Department, Universitas Nahdlatul Ulama Surabaya. Jalan Raya Jemursari Nomer 51 - 57, Surabaya, Indonesia. riyan_sisiawan[at]unusa.ac.id b) Faculty of Economics and Business, Management Department, Airlangga University. Jalan Airlangga No.4 Surabaya, Indonesia. c) Faculty of Business Economics and Digital Technology, Management Department, Universitas Nahdlatul Ulama Surabaya. Jalan Raya Jemursari Nomer 51 - 57, Surabaya, Indonesia. d) Sekolah Perniagaan dan Ekonomi, Universiti Putra Malaysia 43400 UPM Serdang, Selangor, Malaysia e) Faculty of Business Economics and Digital Technology, Management Department, Universitas Nahdlatul Ulama Surabaya. Jalan Raya Jemursari Nomer 51 - 57, Surabaya, Indonesia. f) Faculty of Business Economics and Digital Technology, Management Department, Universitas Nahdlatul Ulama Surabaya. Jalan Raya Jemursari Nomer 51 - 57, Surabaya, Indonesia. g) Faculty of Business Economics and Digital Technology, Management Department, Universitas Nahdlatul Ulama Surabaya. Jalan Raya Jemursari Nomer 51 - 57, Surabaya, Indonesia. Abstract Human Resources is an important factor in a company that must be maintained and managed properly. The achievement of a company or organization depends on the performance of its employees. The purpose of this study is to examine the influence of exogenous variables of organizational culture, work discipline and competence on the endogenous variable, namely employee performance through work motivation as an intervention variable. The population in the study were 34 employees. The data collection method was carried out by distributing questionnaires and analyzed using the Smart PLS method. For the results of the study show that organizational culture, work discipline and competence have a positive and significant effect on employee motivation. Then it can be seen that motivation, work discipline and competence have a positive and significant effect on employee performance, while organizational culture has a positive but not significant effect on employee performance. Furthermore, employee motivation is able to mediate organizational culture and competency on employee performance. Meanwhile, employee motivation in mediating work discipline has a positive but not significant effect on the performance of employees. Keywords: Organizational Culture, Work Discipline, Competence, Motivation, Employee Performance Share Link | Plain Format | Corresponding Author (Riyan Sisiawan Putra)

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