This study examines the application of the Lagrange method and Particle Swarm Optimization (PSO) in solving the Economic Dispatch problem at the Tanjung Jati B Steam Power Plant (PLTU). The main objective is to compare the effectiveness of both methods in optimizing load distribution among generation units and to evaluate potential operational cost savings compared to actual operating conditions. The optimization model minimizes a quadratic generation cost function, subject to system load demand and the power output limits of each unit. Simulation data includes daily load distribution and fuel-related parameters such as calorific value and fuel price. The results show that the Lagrange method yields an average power output of 2,367 MW, equal to the real condition, while PSO produces 1,966 MW, which is 16.94% lower. In terms of cost savings, PSO achieves an average saving of IDR 938,501, while the Lagrange method and real operation yield average savings of IDR 1,078,064 and IDR 1,073,076 respectively. In percentage terms, Lagrange shows 12.95% higher savings than PSO and 0.46% higher than the actual condition. This study highlights the importance of integrating optimization methods in power plant operations to improve efficiency and reliability of electricity supply.

Bullying is an act of oppression that is carried out intentionally and repeatedly with the aim of hurting another person. Bullying can occur physically, verbally, or in subtle ways such as forcing or manipulating. Bullying can have a negative impact on victims, perpetrators and witnesses. Victims can experience psychological stress, behavioral changes and trauma. There are several reasons why someone does bullying, namely because they see their parents often fighting. Unhealthy parenting patterns, too liberated, too harsh, or lacking love and attention. This community service activity aims to provide education regarding the negative impacts of bullying and maintain the mental health of children in Mojowono village, Kemlagi subdistrict, Mojokerto regency. The target of this community service activity is 111 elementary school children from grades 1 to 6 using the hybrid learning method. The results of the evaluation of children's understanding of the material showed that 85% of children really understood the material presented

Social media has become a crucial part of modern life around the globe, providing users with various conveniences. However, its widespread use has also brought about new challenges, one of which is cyberbullying. This harmful issue can have serious emotional and physical effects on those targeted. Cyberbullying occurs in many areas, including sports, and soccer—a sport loved by millions—is no exception. Soccer players often face severe criticism, hate speech, and harassment on social media platforms. To tackle this problem, this study aims to create a strong model for detecting cyberbullying on the social media platform “X” using the Long Short-Term Memory (LSTM) method. By utilizing advanced machine learning techniques, the proposed model intends to identify and reduce instances of cyberbullying, helping to create a safer online space for athletes and the wider community.

 Apple has become a global highlight, particularly due to the products they release. Their products have generated significant profits for the company, especially in terms of marketing and customer loyalty to the Apple brand. This study uses a descriptive research approach. Apple has spent a considerable amount of money marketing their first products, driven by Steve Jobs as the company's leader when they launched their initial products. This is similar to their best-selling product, the iPhone, which has numerous strengths and weaknesses in the global market. Apple continues to strive to maintain a high standard for their iPhone compared to other companies. Therefore, companies engaging in marketing do not always need to spend large amounts, especially if their brand has been well-established for a long time and offers high-quality products.
 
 

As a resource supporting public health services, management of electromedical equipment must be carried out quickly, accurately and integratedly so that function, safety, security and benefits can be optimized. The management of electromedical equipment is regulated in the Republic of Indonesia Minister of Health Regulation Number 65 of 2016 concerning Electromedical Service Standards. The expected result of this research is an expert system that can accurately detect damage to sterile electromedical equipment, especially autoclaves. This expert system can then assist electromedical technicians in finding damage and as an assessment in making decisions for appropriate and validated actions to be taken. From the results of testing and analysis of the expert system for detecting damage to Autoclaves using the fuzzy logic method, the following conclusions were obtained. The damage detection expert system application in the Autoclave has been proven to be able to provide 100% diagnosis results. This system can assess the degree of damage of 11.6235981%. based on the input symptoms provided, thus providing decisions that are close to the actual conditions. The expert system built is able to speed up the damage detection process compared to manual methods. This helps in taking quicker action to prevent further damage to the autoclave.

Tekanan darah tinggi (hipertensi) merupakan kondisi di mana tekanan darah pada dinding arteri terlalu tinggi. Sampai saat ini, hipertensi menjadi isu kesehatan masyarakat, di mana jarang menimbulkan gejala yang jelas pada kesehatan. Hipertensi menjadi salah satu faktor resiko penyakit jantung koroner, gagal jantung, dan stroke. Hipertensi dikenal sebagai pembunuh secara tiba-tiba, karena seringkali penderita hipertensi tidak menyadari kondisinya dan baru mengetahuinya setelah melakukan pemeriksaan ke dokter dan mengalami komplikasi. Sistem pakar hadir sebagai sistem cerdas yang dapat digunakan sebagai solusi dan analisis dalam bidang medis, misalnya untuk mendiagnosis penyakit, pengguna dapat menggunakan sistem ini untuk mendiagnosis dan mendapatkan solusi terkait keluhan kesehatan yang mereka alami. Oleh sebab itu, sistem pakar ini dirancang, dibuat, dan dikembangkan untuk diagnosis dini penyakit hipertensi secara berbasis web dengan mengunakan metode certainty factor. Hasil pengujian sistem dengan menggunakan 100 data kasus, terbukti bahwa metode certainty factor mampu mendiagnosis penyakit hipertensi dengan tingkat akurasi mencapai 82%.

Workload analysis provides an opportunity to smooth workload or reduce work activities that do not provide added value. Detailed evaluation and analysis of each work element of a position will display a more detailed workload map. PT. XYZ requires detailed workload mapping to be able to display the load profile for each position. The results of this load mapping can be used for workload normalization analysis. This research uses the Full Time Equivalent (FTE) method. The data used in this research are job descriptions, frequency and working hours. The research results show that the FTE-based workload value of the Vacum Geiss AG operator is FIT (value 1-1.28), namely on 03-10-2023 it is 1.030 and on 04-10-2023 it is 1.030 which is fit because the FTE value is between The value is 1-1.28 so that the operator's work load is appropriate on that day, then on 05-10-2023 on the Geiss AG vacuum machine it is 0.915, it is still underload because the FTE value is below the value of 0.99 so the operator on that day is underloaded. the work is not suitable and additional work is needed.

<p class="Text"><em>In Kendal, smoked fish producers generally use the hot smoking method, in which the fish is placed close to the smoke source and smoked for three to four hours. The upside is that it has a significant impact on supporting many human endeavors, such as in industrial fishing and food processing. While the negative impact on the environment, such as environmental damage due to global warming, and air pollution. To overcome this problem, a prototype of an environmentally friendly Electrostatic Precipitator chimney has been created. This prototype is operated using power from a Solar Power Plant (PLTS). The results of this study indicate the potential absorption of solar radiation by solar cells shows good efficiency in the first test, the efficiency of solar cells recorded the lowest value of 8.50%, the highest reached 15.76%, with an average of 13.03%. Furthermore, in the second test, the efficiency of the Solar Cell showed an increase, recording the lowest value of 12.83%, the highest reaching 17.19%, and an average of 14.72%. The best test is in the second test because the first test is cloudy and drizzling. By utilizing the intensity of solar radiation as a resource, the Electrostatic Precipitator can be operated quite well. In the two tests carried out, the average output power of solar panels reached 28.51 and 49.49 Watts. Meanwhile, for the power used as the input of the tool in the two experiments, the values recorded were 30.70 and 10.33 Watts.</em></p><p> </p><p><strong><em>Keywords</em></strong><em>: </em><em>Fumigation, Electrostatic Precipitator, PLTS (Solar Power Plant)</em></p><p> </p><p class="Abstract" align="center"><strong>ABSTRAK  </strong></p><p>Di Kendal, para produsen ikan asap umumnya menggunakan metode pengasapan panas, di mana ikan diletakkan dekat dengan sumber asap dan diasapi selama tiga hingga empat jam. Dampak positifnya adalah memiliki dampak yang signifikan untuk mendukung banyak usaha manusia, seperti di bidang indutsri perikanan dan pengolahan makanan. Sedangkan, dampak negatifnya terhadap lingkungan, seperti kerusakan lingkungan akibat pemanasan global, dan polusi udara. Untuk menangani masalah tersebut, telah dibuat sebuah prototipe cerobong <em>Electrostatic Precipitator </em>yang ramah lingkungan. Prototipe ini dioperasikan menggunakan tenaga dari Pembangkit Listrik Tenaga Surya (PLTS). Hasil penelitian ini menunjukkan potensi tingkat penyerapan radiasi matahari oleh <em>Solar Cell</em> menunjukkan efisiensi yang baik pada pengujian pertama, efisiensi <em>Solar Cell</em> tercatat nilai terendah sebesar 8,50 %, tertinggi mencapai 15,76 %, dengan rata-rata 13,03%. Selanjutnya, pada pengujian kedua, efisiensi <em>Solar Cell</em> menunjukkan peningkatan, mencatat nilai terendah sebesar 12,83 %, tertinggi mencapai 17,19 %, dan rata-rata sebesar 14,72 %. Pengujian terbaik terdapat pada pengujian kedua dikarenakan pengujian pertama terdapat cuaca mendung dan gerimis. Dengan memanfaatkan intensitas radiasi matahari sebagai sumber daya, alat <em>Electrostatic Precipitator </em>dapat dioperasikan dengan cukup baik. Pada dua pengujian yang dilakukan, rata-rata daya <em>Output </em> panel surya mencapai 28,51 dan 49,49 <em>Watt</em>. Sementara itu, untuk daya yang digunakan sebagai <em>Input </em>alat tersebut dalam dua percobaan, nilai yang tercatat adalah 30,70 dan 10,33 <em>Watt</em>.</p>

Based on statistical data, every year there is an increase in population. This also happened to the increasing number of Catholics. The increase member in Saint Aloysius Church of Mojosongo isn’t accompanied by an increase of seating facilities, to solved this, a device was designed which will show seats that have been used or still empty through a viewer that will be placed near the entrance. The research method used in this study is a quantitative method. The number of seats used by in one block is 25 seats, the seat sample is 9 seats. Three (3) PIR sensors are placed above the row to the seat 2, where the direction of the PIR sensor is drived by a stepper motor with an angle is 22.61°. Detection alternated and sequentially starting from row A, row B and row C. In general, the seat detection system based on ATMEGA16 works according to the design. People can find an empty seat position by looking at the viewer (LED) and looking for LED lights that are not lit.

Indonesian School in Riyadh (ISR) was established in 1985 by Indonesian embassy in Riyadh in purpose to accommodate the students from Kindergarten to Year 12. The school educates students in three languages: Indonesian, Arabic and English (Setyono, 2016). The ISR has no selection system on students’ competencies for enrolment process like in the home country. The school is only one option for Indonesian children in Riyadh where students from various backgrounds are accepted. Online students’ help is design eLearning in purpose to improve students’ achievement.
The school has 399 students and 21 employees, including four non-teachers and one librarian. The ISR has characteristics like public school in Indonesia where curriculum, policy and finance are supported by Indonesian government and parents’ committee partnership (Setyono, 2016). Based on the concept of No Children Left Behind (NCLB), the ISR need to give opportunities for students to continue to study at they preferred school or university in Indonesia and Saudi Arabia.