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Methodology for optimizing electrical grounding grids in stratified soils using advanced calculation techniques and evolutionary algorithms

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Swarm and Evolutionary Computation 2025年 95卷

作者： Silva, Carlos Leandro Borges da Pires, Thyago Gumeratto Silva Filho, Antonio Marcelino Bulhões, Junio Santos Belo, Orlando M. Oliveira Rodrigues, Clóves Gonçalves Coimbra, Antonio Paulo Calixto, Wesley Pacheco Electrical Mechanical & Computer Engineering School Federal University of Goias Goiania Goias PC 74.605-220 Brazil Institute of Systems and Robotics Coimbra University CoimbraPC 3030-290 Portugal Department of Informatics School of Engineering University of Minho BragaPC 4710-057 Portugal Electrical Power Systems Study Group Federal Institute of Tocantins Palmas TocantinsPC 77.021-090 Brazil Graduate Program in Production and Systems Engineering Pontifical Catholic University of Goias Goiania Goias PC 74605-010 Brazil Mato Grosso Brazil Technology Research and Development Center Federal Institute of Goias Goiania Goias PC 74.055-110 Brazil

This paper presents a practical methodology for optimizing the geometry of electrical grounding grids at industrial frequencies of 50Hz and 60Hz, integrating advanced calculation techniques and evolutionary algorithms to improve the safety and operational performance of electrical grounding systems. The proposed approach is particularly beneficial for industrial automation and control systems, where effective grounding is necessary to maintain system reliability and prevent downtime. This methodology employs mathematical modeling and computational tools to optimize grid parameters, ensuring compliance with safety standards while reducing operational costs, thus contributing to the overall efficiency of automated systems in industrial environments. The study reports a reduction of up to 66% in the number of vertical rods and 40% in horizontal conductors compared to traditional methods. These results indicate that the proposed methodology can significantly reduce material usage and costs while maintaining electrical safety in accordance with regulatory standards, making it applicable to a wide range of industrial settings, including substations and automated facilities. © 2025 The Authors

关键词： Electric grounding

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The Combination of Foot Switch and Low-Cost IMU for a Wearable Mouse in Human-computer Interaction

The Combination of Foot Switch and Low-Cost IMU for a Wearab...

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International Conference on Information Technology and Electrical engineering (ICITEE)

作者： Romy Budhi Widodo Evans Jahja Yusuf Giovanno Ma Chung Human-Machine Interaction Research Center Informatics Engineering Study Program Ma Chung University Malang Indonesia Informatics Engineering Study Program Ma Chung University Malang Indonesia

The following topics are dealt with: learning (artificial intelligence); feature extraction; mean square error methods; image classification; image segmentation; human computer interaction; invertors; diseases; Intern... 详细信息

ISBN: (数字)9781728110974

ISBN: (纸本)9781728110981

关键词： Mice Fatigue Sensors Switches Throughput Standards Foot

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Determination location of disturbance the electricity distribution network for efficiency SOP repair of distribution networks based on Google Maps

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AIP Conference Proceedings 2022年第1期2499卷

作者： Yessy Asri Dwina Kuswardani Widya Nita Suliyanti M. Faiz Arnovie 1Informatics Engineering Study Program PLN Institute of Technology Jakarta Indonesia

The Electric Power Distribution Network, which in this case is also called Feeder, UP3 Manokwari has 6 (six) feeders that are used in the distribution of electricity. Feeders include Elang feeders, Kasuari feeders, Nuri feeders, Mambruk feeders, Maleo feeders, and Merpati feeders. Each feeder has a distribution transformer to distribute the electrical network to customers. Facing the feeder distribution network disruption, PLN Company UP3 Manokwari had a hard time knowing the feeder location and the faulty feeder distribution transformer location, so field officers (Yantek) had a hard time finding the location. and sub-location of each feeder disturbance. This study aims to create a system containing location and sub-location information using Google Maps as a map display. This study uses the A * (A-Star) algorithm. The A-Star algorithm uses the closest approximate distance to reach the destination and has a heuristic value. The path search process is done by first determining the nodes and assigning a graph value for each node, then calculating the graph value that brings up the latitude and longitude values. The chart values are stored in the database and then calculated using the A-Star method. The result of this system is that yantek officers can view the information directly in the form of a map showing the location points and distribution transformers of the feeder that is experiencing disturbances, the system will check the user’s position, and then the system will display the fastest route. from the officer’s location to the location of the feeder experiencing disturbances.

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Content design: E-learning module for study on cultural tourism information systems based on local wisdom 2

Content design: E-learning module for study on cultural tour...

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2nd International Conference on Vocational Education and Technology, IConVET 2019

作者： Pageh, I.M. Permana, A.A.J. Historical Education Faculty of Law and Social Sciences Ganesha University of Education Singaraja Indonesia Information Technology Department Informatics Management Study Program Faculty of Engineering and Vocational Ganesha University of Education Singaraja Indonesia

Facing the 4.0 industrial revolution, it is necessary to carry out reforms and innovations related to national education. Reforms and innovations in the implementation of components of the education system involve changes in curriculum, graduate competencies and assessments, teacher qualifications, funding, facilities and infrastructure, decentralization and educational autonomy. Bali as a world tourist destination must be maintained and passed on to the younger generation. The younger generation can use information technology to help promote Balinese culture. Bali has a lot of local wisdom that can be implemented in the tourism sector. Therefore to promote those local wisdoms, a module that can be accessed through e-learning is developed to help students develop a cultural tourism package based on local wisdom to be promoted online. The modules developed have been tested by content and media experts, which can be used independently by students. Modules can be accessed online at e-learning and they are ready to use instructions for students so they can work on assignments and projects independently. Modules containing this theory and practice are for making brochures, tour packages, videos, and websites, all of which are connected to promote tourism based on local Balinese wisdom. © 2020 IOP Publishing Ltd. All rights reserved.

关键词： Students

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Exergy evaluation while drying fish waste in the forced convection rotary dryer

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AIP Conference Proceedings 2024年第1期3145卷

作者： I. G. N. B. Catrawedarma Akhmad Afandi Anis Usfah Prastujati Endi Sailul Haq Department of Mechanical Engineering Politeknik Negeri Banyuwangi Banyuwangi Indonesia Livestock Product Processing Technology Study Program Politeknik Negeri Banyuwangi Banyuwangi Indonesia Department of Informatics Engineering Politeknik Negeri Banyuwangi Banyuwangi Indonesia

This study focuses on the exergy analysis of the fish waste drying system using a rotary dryer. The effect of the initial mass of fish waste on the exergy parameters was carried out. The exergy balance was applied in the drying chamber. The exergy parameters analyzed include exergy inflow, exergy outflow, exergy loss, and exergy efficiency. In terms of exergy sustainability, the sustainability index, environmental impact factor, waste energy ratio, and improvement potential were also analyzed. As a result, it was found that the exergy inflow for all initial masses was not significantly different. Meanwhile, if the fish waste’s initial mass is decreasing, the exergy outflow and exergy efficiency increase, and exergy loss decrease. The sustainability index decreases, and the environmental impact factor increases with increasing initial mass. Waste energy ratio and improvement potential increase with increasing initial mass.

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Empowering Biomedical Discovery with AI Agents

arXiv

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arXiv 2024年

作者： Gao, Shanghua Fang, Ada Huang, Yepeng Giunchiglia, Valentina Noori, Ayush Schwarz, Jonathan Richard Ektefaie, Yasha Kondic, Jovana Zitnik, Marinka Department of Biomedical Informatics Harvard Medical School BostonMA United States Department of Chemistry and Chemical Biology Harvard University CambridgeMA United States Program in Biological and Biomedical Sciences Harvard Medical School BostonMA United States Department of Brain Sciences Imperial College London London United Kingdom Harvard College CambridgeMA United States Program in Biomedical Informatics Harvard Medical School BostonMA United States Department of Electrical Engineering and Computer Science MIT CambridgeMA United States Kempner Institute for the Study of Natural and Artificial Intelligence Harvard University MA United States Broad Institute of MIT and Harvard CambridgeMA United States Harvard Data Science Initiative CambridgeMA United States

We envision "AI scientists" as systems capable of skeptical learning and reasoning that empower biomedical research through collaborative agents that integrate AI models and biomedical tools with experimental platforms. Rather than taking humans out of the discovery process, biomedical AI agents combine human creativity and expertise with AI’s ability to analyze large datasets, navigate hypothesis spaces, and execute repetitive tasks. AI agents are poised to be proficient in various tasks, planning discovery workflows and performing self-assessment to identify and mitigate gaps in their knowledge. These agents use large language models and generative models to feature structured memory for continual learning and use machine learning tools to incorporate scientific knowledge, biological principles, and theories. AI agents can impact areas ranging from virtual cell simulation, programmable control of phenotypes, and the design of cellular circuits to developing new therapies. © 2024, CC BY.

关键词： Adversarial machine learning

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Comparison heuristics method for solving two echelon vehicle routing problem

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AIP Conference Proceedings 2024年第1期3029卷

作者： Muhammad Khahfi Zuhanda Saib Suwilo Opim Salim Sitompul Mardiningsih Informatics Engineering Study Program Faculty Engineering Universitas Medan Area Medan Indonesia Department of Mathematics Universitas Sumatera Utara Medan Indonesia Faculty of Computer Science and Information Technology Universitas Sumatera Utara Medan Indonesia

Today, almost everyone has done online shopping activities. The presence of e-commerce makes it easier for humans to do shopping. E-commerce companies compete to provide the best service to the community. One of them is in the delivery within the city. In terms of city delivery, the 2E-VRP model has been discussed a lot lately in terms of consolidating shipments. This study aims to present the 2E-VRP mathematical model and work in two stages to find a solution. In this article, the author also compares solutions with several heuristic models including 2-opt, repetitive nearest neighbor, nearest neighbor, farthest insertion, cheapest insertion, arbitrary insertion, and nearest insertion. From the results of research conducted by the 2-opt method, farthest insertion, cheapest insertion, and nearest insertion, the total distance is the best, all three get the same distance, then followed by the nearest insertion, arbitrary insertion, and nearest insertion methods.

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Efficiency analysis of a 150 Wp solar power system as a water pump electric power source

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AIP Conference Proceedings 2023年第1期2746卷

作者： A. N. Woro W. M. W. Muda N. Irwansyah D. A. Erica Electrical Engineering Study Program Faculty of Engineering Pamulang University Tangerang Selatan Banten Indonesia Faculty of Ocean Engineering Technology and Informatics Universiti Malaysia Terengganu 2103 Kuala Nerus Terengganu Malaysia

The 1970 – 1979 when a world energy crisis occurred and since then new and renewable energy has started to gain attention. Water and electricity are very important sources of life. Solar energy can be used to turn on a water pump through a solar power generation system as a water pump energy source. it is very important to know the level of efficiency of the PV module as a solar energy absorber that will produce current and voltage values. This solar power system will be equipped with 150 Wp PV, SCC, Battery, Inverter and also a 125 watt Pump. To determine the efficiency level of PV as a water pump power system, observations and measurements carried out for data collection for one day. The measurement shows that the highest voltage at 15:00 WIB 20.85 Voc with a temperature of 34.95°C with a current of 4.80 Isc when solar radiation is 560 W/m^2 and produces a power of 100.08 watts with an input power of 563 watts and an efficiency value of 17%. While the lowest voltage at 12:00 WIB 18.60 Voc when the temperature 41.16 °C and the current generated 6.90 Isc with solar radiation of 1013 W/m^2 and the power generated 128.34 watts with an input power of 1019 watts and the resulting efficiency 12%. Temperature is the main factor in the voltage generated, while solar radiation will affect the current output to be generated by PV. Incoming and outgoing power will determine the efficiency of the PV system as a water pump power source.

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Design ethnomathematics mobile module to improve mathematics thinking ability

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AIP Conference Proceedings 2023年第1期2614卷

作者： Ratri Rahayu Henry Suryo Bintoro Alif Catur Murti Mathematics Education Study Program Teacher Training and Education Faculty Universitas Muria Kudus PO.BOX 53 Gondangmanis Bae Kudus Indonesia Informatics Engineering Study Program Faculty of Engineering Universitas Muria Kudus PO.BOX 53 Gondangmanis Bae Kudus Indonesia

The aims of this study are (1) analyzing the need for teaching materials in the form of mobile modules in mathematics learning; (2) produce a draft outline of the ethnomathematics mobile module. The subjects of this study were the principal, mathematics teacher, seventh-grade students of Junior High School in Kudus, Indonesia. Data obtained from literature studies and field surveys include questionnaires, interviews, and FGD. The data analysis technique used is data triangulation with stages: reduction, data presentation, and conclusions based on data descriptions. The results showed that (1) students’ mathematical thinking skills are still low, teachers have not used application-based media, teachers have not developed ethnomathematical-based media, students need learning media that can improve mathematical thinking skills and make students interested in learning mathematics; (2) the ethnomathematics component of the mobile module is divided into 3 main parts, namely the introduction, the core, and the end. The introductory section includes the initial login page, instructions for use, and information regarding basic competencies. The core section contains the content of learning activities that contain ASEP (apperception), JAYA (cultural bridge), SITI (material description), EDI (self-evaluation). The last part contains motivational sentences.

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Numerical Simulation of Spear Motion as Game Items

Numerical Simulation of Spear Motion as Game Items

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International Symposium on Nanoscience and Nanotechnology in Life Sciences 2017, ISNNLS 2017

作者： Muhima, R.R. Mardi, S. Hariadi, M. Puspitasari, I. Informatics Engineering Department ITATS Arief Rachman Hakim 100 Surabaya Indonesia Electrical Engineering Department Sepuluh Nopember Institute of Technology Indonesia Information System Study Program Faculty of Science and Technology Universitas Airlangga Jl. Mulyorejo Surabaya60115 Indonesia

Game development in 3D is mostly done by characters, items and the environment. Game items such as character weapons modeled in 3D will be the attraction of a game. In this paper, spear motion as a game items is modeled in 3D. Nonlinear Equations Six Degrees of Freedom (6 DOF) are used for mathematical models of spear motion. The parameters studied in the motion model are: geometry, mass and aerodynamics. Spear aerodynamic parameters were analyzed using the Datcom method. Numerical simulation of mathematical models of spear motion with variations in the initial velocity of the throw and the direction of the throw. From the results of numerical simulation, the maximum range R = 131.7 m at the initial velocity V0 = 40 m/s, the direction of throw (angle θ0 = 35 deg, angle φ0 = 10 deg, ψ0 = 0 deg). And the maximum height Hmax = 12.18 m is achieved at the initial velocity V0 = 20 m/s, direction of throw (angle θ0 = 35 deg, angle φ0 = 40 deg, angle ψ0 = 0 deg). © 2020 Published under licence by IOP Publishing Ltd.

关键词： Aerodynamics

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