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Lightning has always been a dangerous threat to the equipment of electric power systems consisting of: power plants, substations, transmission lines and distribution lines. Generally, overhead high-voltage transmission lines are exposed to lightning strikes. Therefore, the degree of protection against lightning is determined based on the degree of insulation of the equipment. To prevent damage to equipment due to lightning strikes, arresters are used. In this study, three arrester models were used as comparisons, namely. IEEE arrester model. The system was simulated using Alternative Transients Program (ATP) software. The results showed that the lightning rod was declared successful in protecting the transmission system, where the three lightning rods had a Margin Protection (MP) of arresters that reached 28%. In the simulation, it is known that the IEEE arrester successfully cut off the lightning current in the transmission system so that the transient overvoltage recorded on the transformer does not exceed the Basic Insulation Level ((BIL) trafo.  

At RT 06/014 Kel. Palmerah, West Jakarta, there is an urgent need to increase digital literacy among parents, who vary in age and level of technological knowledge. Reliance on digital technology poses challenges in supervising children and online safety. This challenge can be overcome by conducting digital literacy training designed to close knowledge gaps, improve online security, and provide skills to use technology responsibly. This training is carried out through lectures, simulations, and practice. Survey results showed high satisfaction (4.2/5) with the training content, but there was demand for more hands-on activities, especially regarding social media and data security. This training aims to equip parents with the skills necessary to support their children's education in a dynamic digital environment.

To support green energy and reduce the effects of greenhouse gases, it is necessary to conceptualize and explore the use of renewable energy. In this research, the use of new renewable energy, especially photovoltaics (PV), will be applied to educational buildings, especially at ITS PKU Muhammadiyah Surakarta. This system is intended to reduce the use of conventional electrical energy. This system will be installed on the roofs of campus buildings with installation plans to meet the power requirement of 4.8 kW. This photovoltaic (PV) system will be modeled to determine the number of PV panels needed. Based on the simulation results, the number of panels required is 36 panels (2 series, 18 parallel) to produce 4.85kWh of power. Modeling and analysis of this system was carried out using RETScreen and MATLAB SIMULINK software.

This paper proposes a method based on the Lagrange optimization function and local search technique for minimizing the total cost of two power systems. The first system comprises ten multiple fuel thermal units (MFTUs) while the second system combines the first system with renewable energies, solar and wind power. The proposed method has advantages over its conventional method without a local search technique, called the conventional Lagrange function-based method (CLM), such as having the same parameters and exploiting other search spaces after getting convergence. The proposed method is more effective than CLM for the first system with the last case of load demand. In addition, the proposed method has better costs than previous algorithms, such as the Hierarchical numerical method (HNUM), Hopfield neural network, Adaptive Hopfield neural networks (AHNN) and modified Lagrange neural network (MLANN). Especially, the proposed method can find smaller costs than them, up to $6.78, corresponding to 1.4% for Case 1, and up to $2.43, corresponding to 0.4% for Case 4. Only the proposed method is tested on the second test system. The simulation results indicate that the method is very efficient for the problem with solar and wind energies and multiple fuel thermal units.

One of the intersections in the city of Palembang is the Three-way Intersection of Bukit Siguntang, which is a signal-free intersection. This intersection is located in an educational and residential area, connecting Srijaya Negara Street and Demang Lebar Daun Street. The road has a very high volume of vehicles, with traffic flows reaching 45,208 vehicles on Sundays or holidays, 82,124 vehicles on Mondays, and 80,379 vehicles on Wednesdays. Among these three days, Monday is the busiest day with a vehicle count of 84,364. The intersection's performance is evaluated by examining the capacity levels at each approach. The Three-way Intersection of Bukit Siguntang shows a degree of saturation (DS) above 0.85 on all approaches, indicating that the road capacity has reached a saturation level resulting in a service level of D for the intersection, with an average intersection delay of 34.27 seconds/vehicle. To enhance the intersection capacity, several alternatives can be implemented, including road geometric widening and changing the traffic flow policy from two-way single lane to one-way single lane. Simulation of the capacity improvement for the intersection with both alternatives indicates that road geometric widening results in a delay of 24.58 seconds/vehicle, falling within the service level C for the intersection. Meanwhile, changing the traffic flow policy from two-way single lane to one-way single lane results in a delay of 17.39 seconds/vehicle, also falling within the service level C for the intersection.

The main objective of this research is to study learning media Fingerglass human breathing simulator. Utilization of simulation models designed to resemble the human respiratory system serves as an invaluable educational tool. The aim is to facilitate a comprehensive understanding of scientific concepts, particularly in the field of natural sciences, with the ultimate goal of practical application in everyday life. By using this simulator it is hoped that students will be involved to be actively involved in the learning process, fostering a high interest in understanding the subject matter. This research took place at UPT SDN 17 Gresik for Grade 5 students. The model used is a simulator of the human respiratory system following the ADDIE model, which consists of five stages: analysis, design, development, implementation and evaluation. This model is based on the scientific approach to ADDIE development theory outlined by Robert Maribe Branch. The validation process for two levels of material expert validators I and II resulted in a validation level of 85% indicating that the material was included in the valid category. Likewise, the results of the validator material expert validator II show a validation level of 100% which is also included in the valid category. This implies that the contents of the learning media are relevant to the subject matter of the fifth grade Human Respiratory System in elementary school. Thus it can be concluded that the quality of the Fiberglass Learning Media Human Breathing Simulator meets valid criteria in terms of the material it contains. In addition, the student's response obtained a value of 87% indicating that the Human Breathing Simulator Fiberglass Learning Media was very suitable for use in the learning process

The main thing that distinguishes between 2D and 3D animation lies in the quality of the resulting display, namely the appearance of 2D animation that seems flat and the appearance of 3D animation that seems more volume. This study aims to manually apply 2D visual effects as an alternative in making an animated visual effect. The process of uniting a 3D animation combined with 2D animation visual effects that are created manually frame by frame and using Clip Paint Studio and Blender software. The results of this study indicate that the application of 2D animation visual effects in 3D animation is able to display a visual style that resembles 2D animation and does not require computer engine performance that is too heavy, rather than using 3D simulation methods or 3D procedural which requires strong computer resources. It is good to use in making a 3D animation with a visual style of 2D animation.

Process scheduling algorithms play an important role in determining the performance of operating systems, particularly in managing CPU utilization and process execution efficiency. Ineffective scheduling mechanisms can lead to increased waiting time and reduced system performance. This study aims to model and simulate several process scheduling algorithms using MATLAB in order to evaluate their performance characteristics. The research method involves developing simulation models for selected scheduling algorithms, including First Come First Serve, Shortest Job First, and Round Robin. Performance evaluation is conducted based on key parameters such as average waiting time, turnaround time, and processor throughput. The simulation results demonstrate that each scheduling algorithm exhibits different performance behaviors depending on the workload characteristics. Shortest Job First produces the lowest average waiting time, while Round Robin offers better response time fairness for time-sharing systems. The findings indicate that simulation-based analysis using MATLAB provides an effective approach to understanding the behavior and performance trade-offs of process scheduling algorithms. This research contributes as a reference for selecting appropriate scheduling algorithms in operating system design and as a learning model for process scheduling analysis.

Malahayu Reservoir is located in Malahayu Village, Banjarharjo District, Brebes Regency. Malahayu Reservoir was built in 1935. Malahayu Reservoir is planned to have a water storage capacity of 69 million m³ with a water surface area of 9.25 km². The main purpose of the construction of this reservoir is to supply irrigation water with a total area of 12,674 Ha, consisting of DI Kabuyutan of 4,166 Ha, DI Jengkelok of 6,173 Ha, and DI Babakan of 2,335 Ha. However, the water supply in Malahayu Reservoir continues to decrease, allegedly due to the high amount of sediment. The current problem is the occurrence of sediment in the Malahayu Reservoir. The pattern of operation using this reservoir needs to be studied because it is considered less optimal and because there needs to be a review of the use of reservoir water using newer data. That way, an operating pattern is needed to determine the reliability of reservoirs in their use as irrigation water providers. This study began by analyzing the secondary data obtained. Data is processed to obtain the amount of reservoir discharge and water needs for irrigation water. And the study ended with a simulation of the reservoir operation pattern. From the results of this study, it is expected to help provide solutions for the operation pattern of Malahayu Reservoir as an optimal reservoir. To improve the performance of the Malahayu Reservoir, supporting data such as reservoir operational systems and performance, hydrological data, reservoir operating procedures and patterns, and irrigation data are needed. The results of the analysis showed that the operation of the Malahayu Reservoir was less than optimal. Simulation of reservoir operation shows that the volume of water in Malahayu Reservoir is below the Minimum Operating Level (MOL), which is the minimum volume of water that should be in the reservoir. According to the records of the Cimanuk-Cisanggarung River Basin Center (BBWS), the condition of water supply in the Malahayu Reservoir continues to decline since this reservoir was built during the Dutch colonial rule until now.

The use of Information and Communication Technology (ICT) in agricultural education in developing countries has become very important in improving the quality and productivity of agriculture, as well as addressing the problems faced by farmers in developing countries. The aim of this research is to describe the experience of using ICT in agricultural education in developing countries, as well as to identify the advantages and disadvantages of using ICT. The method used in this study is a literature review by collecting data from various sources such as articles, books, and research reports. The results of the study show that the use of ICT in agricultural education in developing countries has been done in various ways, such as the development of agricultural applications, distance learning, and the use of simulation software. Although there are some obstacles such as limited access and dependence on technology, the use of ICT in agricultural education in developing countries can provide advantages in improving the effectiveness and efficiency of learning, as well as expanding social networks and collaboration among students. However, to optimize the advantages and overcome the limitations of using ICT in agricultural education in developing countries, cooperation between the government, educational institutions, and technology industry is needed in building adequate ICT infrastructure, providing affordable ICT access, as well as providing training and technical support for ICT users in agricultural education.

The giveaway activity is a marketing activity carried out by a brand with the aim of attracting market attention, and introducing the brand more broadly to potential customers. By distributing prizes to selected customers. In this activity, several problems emerged, namely the Sukabumi Boutique Store admin felt that it was not objective because the process of determining the winner of the giveaway was only through the picker application on the cellphone, so that the giveaway winners who appeared did not pay attention to certain criteria and requirements. Determination through the picker application is only done by drawing a lot by looking at the name that appears first. Selection like this is considered unfair for customers who already feel they meet all the criteria and requirements but do not win the giveaway. In the implementation of the simulation of determining the winner of the giveaway, a method is needed that can solve these problems. The weighted product method is a ranking method where decisions are made by multiplying to connect attribute ratings. This process begins with inputting alternative data, then continues with the process of inputting several criteria that have been selected, namely, number of transactions, quantity of shopping, total visits, resellers. This selection process will determine the giveaway winner in a more targeted and more objective manner by taking into account certain criteria and requirements.   Keywords: Giveaway, Weighted Product, Boutique Sukabumi, Picker App

In today’s digital era, many schools face challenges in utilizing social media as an effective means for promotion and enhancing the image of the institution. Despite the enormous potential of social media, many educators and administrative staff are still lacking in skills in optimally managing this platform. Based on these problems, the purpose of this study was to improve the skills and understanding of participants regarding the use of social media as a strategic promotional tool for schools, as well as to encourage the adoption of more effective digital marketing practices. The method used in this study was a participatory approach through an interactive workshop. The workshop involved hands-on training sessions, group discussions, and social media content creation simulations, which were designed to provide practical experience and enhance participants’ understanding directly. Data were collected through observation, pre- and post-workshop questionnaires, and interviews with participants to measure changes in their skills and perceptions. The results showed a significant increase in participants’ technical skills in managing social media, as well as a positive change in their perspectives on the importance of social media as a promotional tool. Most participants reported that they felt more confident and ready to implement more structured and data-driven promotional strategies in their schools. These results indicate that the workshop successfully achieved its objectives and had a positive impact on participants’ ability to utilize social media effectively.

Tuberculosis cases in Indonesia are ranked second in the world. TB prevention needs to be done at the grassroots level by involving trained TB cadres. The simulation training method is one of the strategies in increasing the capacity of cadres in increasing TB knowledge and the performance of TB cadres in finding cases. The purpose of this study was to determine the effect of providing simulation training methods on the level of cadre knowledge and performance of YABHYSA Sumenep TB cadres. This study uses a quantitative analytic survey with a cross-sectional design research design. Sampling using non probability sampling by means of purposive sampling, namely all active cadres SSR YABHYSA Sumenep as many as 45 people.The results showed that there was an effect of providing simulation training methods on increasing knowledge and performance of TB cadres YABHYSA Sumenep between before and after receiving simulation training (p<0.05). It is concluded that the provision of simulation training methods can improve the knowledge of TB cadres and cadre performance in TB case finding.

Physics is a branch of science that requires more cognitive abilities, while the ability to receive information from each person is different. One effective way to deliver information is to use simulations.This research was conducted at SMA Veteran Purwokerto, research participants were students of class X, a case study that explored a group of students, with the method of observation and literature study. This study aims to find out the increase in students' understanding of concepts that are specifically related to Regular Straight Motion and Straight Changed Irregular Motion through learning media, and to determine student involvement in the learning process. To find out whether or not there was an increase in students 'understanding of the concept of Straight Motion Straight Motion Irregularly Changed, researchers compared students' understanding before and after learning with learning media.The results showed that overall there was an increase in understanding of the concepts of Irregular Straight Motion and Irregularly Changed Straight Motion, overall student involvement was very active.

Penelitian ini dilaksanakan karena dilatarbelakangi oleh siswa yang kurang berkomunikasi sesama teman di sekolah ditunjukkan dengan saling berdiam-diaman, introvet, tidak percaya diri. Jenis penelitian ini adalah penelitian kuantitatif dengan metode penelitian teknik simulation games. Populasi yang digunakan dalam penelitian ini adalah siswa kelas X MAN 01 PATI dengan jumlah 144 siswa. Kelaas X-1 adalah kelas yang dipergunakan untuk tryout. Sedangkan untuk sampelnya adalah diambil 37 siswa yang komunikasi interpersonalnya rendah. Sampling yang digunakan adalah teknik purposive sampling. Alat pengumpul data yang dipergunakan adalah skala  komunikasi interpersonal. Analisis yang digunakan untuk menguji validitas instrument adalah korelasi antara butir dan skor yang dikerjakan dengan korelasi Product Moment sedangkan untuk menguji reliabilitas dengan bantuan program komputer SPSS 22,0 for windows Dari analisis data yang dilakukan peneliti diatas selanjutnya dilakukan uji hipotesis untuk membuktikan kebenaran hipotesis yang diajukan. Hasil pretest mengenai skala komunikasi interpersonal dapat diketahui terdapat 5 siswa pada kategori rendah dengan persentase 70%, 1 siswa pada kategori tinggi dengan persentase 30%. Hasil posttest mengenai skala komunikasi interpersonal dapat diketahui terdapat 6 siswa pada kategori tinggi dengan persentase 70,5%, 2 siswa pada kategori rendah dengan persentase 29,5%. Hasil uji Independent Sampel Test menggunakan bantuan program SPSS 22 diperoleh nilai sig. 0.080 < 0.05, maka hipoteses yang berbunyi layanan bimbingan kelompok dengan teknik simulation games berpengaruh dalam meningkatkan komunikasi interpersonal siswa memiliki perbedaan yang signifikan, yang memiliki perbedaan yang signifikan, dilihat dari hasil perhitungan uji independent Sample T-test Dari uraian di atas, maka dapat dikatakan bahwa layanan bimbingan kelompok dengan teknik simulation games berpengaruh dalam meningkatkan komunikasi interpersonal siswa kelas X MAN 01 PATI