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Bangunan yang berada di daerah rawan gempa dengan tanah lunak cenderung memiliki tingkat kerentanan yang lebih tinggi. Dalam merancang struktur bangunan bertingkat, beban gempa menjadi salah satu parameter utama yang sangat berpengaruh. Kekuatan sebuah bangunan ditentukan oleh elemen-elemen struktur yang menopangnya dan kolom merupakan elemen struktur yang memiliki peran penting dalam konstruksi. Jika kolom mengalami kegagalan, bangunan yang ditopangnya berpotensi runtuh. Oleh karena itu, rendahnya ketahanan konstruksi di wilayah ini tetap menjadi permasalahan yang sedang diteliti saat ini. Tujuan penelitian ini untuk mengetahui seberapa jauh pengaruh variasi dimensi kolom terhadap struktur bangunan terhadap gempa, sehingga diperoleh ukuran dimensi kolom yang paling optimal. Pada penelitian ini, objek yang digunakan adalah bangunan 8 lantai yang terdiri dari lantai 1-3 merupakan kantor dan lantai 4-8 merupakan hunian. Pada perencanaan ulang bangunan ini berpedoman pada persyaratan beton struktural (SNI 2847:2019), perencanaan ketahanan gempa (SNI 1726:2019), dan beban minimum untuk perancangan bangunan gedung dan struktur lain (SNI 1727:2020), dengan pemodelan menggunakan software ETABS V.22. Redesain bangunan ini untuk mengetahui ukuran dimensi kolom yang paling optimal. Hasil penelitian perubahan dimensi kolom terhadap kekuatan struktur bangunan yakni dengan memperbesar dimensi kolom, kapasitas penampang bertambah yang dapat meningkatkan ketahanan kolom terhadap beban gempa. Selain itu, dimensi yang lebih besar juga membantu mengurangi tegangan aksial pada kolom, sehingga menurunkan risiko kegagalan akibat tegangan berlebih atau kelelahan material. Semakin besar dimensi kolom yang digunakan maka semakin kecil nilai simpangan yang dihasilkan. Artinya dengan dimensi kolom yang lebih kecil memiliki resiko yang lebih tinggi, sebab nilai simpangan lebih dekat dengan batas yang diijinkan. Akan tetapi hasil analisis menunjukkan bahwa dimensi kolom dengan berbagai variasi masih aman dari pengaruh delta izin.

Work fatigue is a significant issue faced by employees in Indonesia, with approximately 65% experiencing symptoms that reduce their concentration and performance. Excessive workload, particularly mental workload, can result in cognitive strain and decreased productivity. This study aims to measure the level of mental workload experienced by quality control employees at PT Delta Dunia Tekstil I using the NASA Task Load Index (NASA-TLX) method. The research also investigates the relationship between employees’ age, length of service, and perceived mental workload through T-tests and F-tests to provide a more comprehensive analysis. Data were collected from 20 quality control employees who are responsible for monitoring textile production under strict standards. Results from NASA-TLX calculations indicate that the average mental workload falls within the high category, with effort and own performance emerging as the dominant dimensions contributing to mental strain. Correlation analysis shows a negative but not statistically significant relationship between age, length of service, and mental workload, suggesting that other factors play a stronger role in shaping employees’ perceptions. The study further highlights fluctuations in employee attendance and quality performance indicators, emphasizing the importance of workload evaluation. To address these issues, recommendations include adding more operators per machine, which is projected to reduce mental workload scores by approximately 33%. Such measures can optimize task distribution, improve efficiency, and promote employee well-being. Overall, the findings suggest that systematic workload assessments using tools such as NASA-TLX are essential for enhancing productivity and supporting sustainable human resource management in the textile industry.

This research investigates the implementation of Random Forest algorithms combined with Synthetic Minority Over-sampling Technique (SMOTE) to predict elementary school dropout rates in Indonesia, supporting the Indonesia Emas 2045 vision. A significant gap was identified in previous studies, which, despite utilizing artificial intelligence for dropout interventions, had not integrated temporal dimensions into data analysis. A temporal data-based classification model was developed using Indonesian Ministry of Education data from 2021-2023, incorporating lag features, delta calculations, and rolling statistics. Two models were implemented: one with SMOTE achieving 99% accuracy with perfect recall for high-risk regions, while the non-SMOTE model reached 100% accuracy. Temporal features were identified as crucial predictors, reflecting external fluctuations and annual changes impacting dropout decisions. This approach enables educational institutions to allocate resources more efficiently by prioritizing operational assistance for high-risk schools. The model's capacity to identify high-risk regions with 100% recall represents a strategic investment in strengthening Indonesia's human resource sustainability. To address the limitations of provincial aggregate data, expansion to include individual-level variables and model validation at district or school scales is recommended for future research.

Supplier selection is a strategic element in supply chain management to ensure operational efficiency and business sustainability. This study aims to determine the best urea supplier for PT DSSA 1, a textile company specializing in dyeing and finishing processes, using the Analytic Network Process (ANP) method. This method was chosen for its ability to systematically analyze interdependencies among criteria, leading to more accurate and comprehensive decision-making. Data were collected through direct observation, in-depth interviews with internal company sources, and relevant literature reviews. The analysis was based on five main criteria: quality, price, service, delivery, and flexibility, each further broken down into sub-criteria. The results indicate that quality is the most critical criterion, with the highest weight of 23.19%, followed by price, service, and delivery, each with relatively balanced weights of 19.93%. Flexibility, although ranked last with a weight of 17.01%, remains relevant, especially for urgent orders. Based on the analysis, Supplier A was identified as the best choice with the highest overall weight, followed by Supplier B and Supplier C. This study provides practical contributions by offering strategic recommendations for PT DSSA 1 in selecting suppliers that support production efficiency and business sustainability. The study is limited in the scope of criteria and the number of suppliers analyzed. Future research is recommended to explore more variables, expand the sample size, and consider the implementation of digital technologies to optimize the supply chain.

The building to be utilized should undergo regular inspections and performance testing to determine whether it can function and operate according to its intended use. Compliance with administrative and technical regulations governing the utilization of buildings is demonstrated through the issuance of a Building Worthiness Certificate (SLF). This study aims to assess the compatibility of the building's function with the conditions during the planning phase and evaluate the structural feasibility of the building. It also seeks to implement the provisions of Government Regulation No. 16 of 2021 regarding the Implementation of Law No. 28 of 2002 on Buildings. Based on the research conducted, it can be concluded that the structural suitability of the MSC Indosat Baturaden building has changed compared to the planned building. Initially designed as a battery storage building, it is currently used as an MSC building or a facility for storing batteries and servers. Additionally, there are discrepancies in the area specified in the original Building Permit (IMB) compared to the current building. Further analysis of the building's structure and the application of current regulations regarding structural serviceability, including dynamic load analysis (earthquake), inter-story drift analysis, P-Delta analysis, and structural cross-section checks, concluded that the building is safe as it meets the requirements specified in SNI 1726:2019 and SNI 2847:2019. The highest structural cross-section capacity ratio was 0.2 < 1, and the inter-story drift value was 0.023 < 0.07. The existing concrete material meets the structural standards, with a characteristic compressive strength of 28.98 MPa. The results of the rebar scan detector test showed that the type of reinforcement used complies with the standards specified during the planning phase, referring to SNI 07–0408–1989. Overall, the structural analysis results for the MSC Indosat Baturaden building indicate that the building is safe and remains fit for use.    

This research focuses on analyzing the performance of dry bulk unloading at Tanjung Tembaga Port, with a case study of PT Delta Artha Bahari Nusantara. The main objective of this research is to evaluate the performance of dry bulk loading and unloading services at the port and identify efforts that can be made to improve loading and unloading productivity. The research method used is descriptive quantitative, with data collection through direct observation, interviews, and documentation studies. The data obtained were analyzed using statistical methods and compared with the established operational service performance standards. The results showed that the performance of loading and unloading at Tanjung Copper Port seen from all indicators of loading and unloading performance can be concluded that the average of all indicators includes good category as evidenced by the total percentage of the average of 79.96%. This study concludes that to improve loading and unloading performance, PT Delta Artha Bahari Nusantara needs to improve facilities and infrastructure, improve operational systems, and provide training to the workforce. Thus, it is expected that the port can be more efficient in handling dry bulk loading and unloading and contribute positively to the supply and distribution chain.

Electric motors with an electromagnetic devices that convert electrical energy into mechanical energy, so it can be that electric motors are include in the category of dynamic electric machines. The research to find out the design of the circuit form protoype from wye delta, how to replace the system control circuit starting wye delta, and obtain a large result measuring the flow current of the 3 phase induction motor when the motor starts the motor running. Method used between another study of literature, than to do design and testing of tools and data retrieval. The results of the system test is effective, obtained, digging, initial current, electric motor with value, with the acquisition of measurement results when using the wye system on R, S, and T phase each 0,6 ampere, 0,8 ampere, and 0,6 ampere. When using the delta system on R phase of 7,5 ampere,S phase of 8,5 ampere, and T phase of 8,3 ampere. Prototype from thid tools operates with controller system, using a toll called a semiautomatic control system, whit an electromagnetic working principle ehere the main function of the contactor is as a magnetic switch.

Carrying out work practices in this industry is one of the requirements for the industrial practice course. This practical activity aims to find out directly the state of the industry in terms of work readiness. The aim of this industrial practice activity focuses on finding out what components are contained in the Star-Delta hydrant pump panel, knowing the process of installing the Star-Delta hydrant pump panel and knowing how the Star-Delta panel works. In implementing this industrial practice, observation methods, library observations and interviews are used. PT. Tiga Kreasi Indonesia is a company that operates in the field of manufacturing electrical panels, with one of its products being Star-Delta hydrant pump panels to stabilize air pressure in hydrant pump lines. The hydrant pump's star delta panel functions to control and secure what happens if undesirable things happen, such as protecting a building or factory. This research produces new knowledge and understanding regarding the design of Star-Delta Panel hydrant pumps which are widely used in homes, factories and offices to minimize the occurrence of fires.

The human development index needs to be prepared early on. Toddlers are the nation's next generation whose nutritional status must be taken into account. Toddler growth and development is a continuous process starting from the womb until adulthood. Monitoring growth and development in toddlers needs to be done. The aim of this community service is to measure the weight, body, height and developmental status of babies and toddlers to detect stunting early. The method used is direct examination using scales, macrotoa and KPSP sheets

The research proposes an innovative approach to identifying and positioning vehicle number plates using a combination of Maximally Stable Extremal Regions (MSER) and Harris Corner methods. The MSER method is used to detect stable regions on the vehicle number plate image. MSER has the ability to recognize areas that have significant contrast intensity, which often represents the characteristic of the number plate. After identifying the potential regions, the Harris Corner method was applied to determine the characteristic angles. The cross points on the number plate. The combination of these two methods allows for more accurate and reliable identification of the position of the number plate. In this study the author performs optimization by changing the preprocessing part and the part of the MSER method. In the preprosessing the author changes the morphological part of a filter, in the section of the method MSER adds input arguments such as ThresholdDelta, RegionAreaRange, and MaxAreaVariation. The results of this study are 99.27% accuracy, 82.73% precision and 83.14% recall. Previous studies were 98.85%, 67.61% and 79.66% recalls. Based on the results of these values, the study has successfully optimized previous studies.

Penelitian ini bertujuan untuk menganalisis pengaruh kepemimpinan yang melayanai dan motivasi intrinsik terhadap kinerja karyawan baik secara langsung maupun melalui Organizational Citizenship Behavior pada karyawan PT. Deltamarga Adyatama Semarang. Populasi pada penelitian ini adalah seluruh seluruh karyawan PT. Deltamarga Adyatama Semarang, ukuran jumlah sampel yang digunakan sebesar 107 responden, dengan teknik pengambilan sampel menggunakan metode sensus atau sampel jenuh. Sumber data yang digunakan data primer, dengan metode pengumpulan data kuesioner. Teknik analisis yang digunakan adalah analisis jalur dan uji sobel. Hasil analisis penelitian diperoleh kepemimpinan yang melayani dan motivasi intrinsik berpengaruh positif dan signifikan terhadap Organizational Citizenship Behavior. Kepemimpinan yang melayani, motivasi intrinsik, dan Organizational Citizenship Behavior berpengaruh positif dan signifikan terhadap kinerja karyawan. Hasil uji mediasi menyatakan bahwa variabel Organizational Citizenship Behavior dapat memediasi pengaruh kepemimpinan yang melayani terhadap kinerja karyawan, serta Organizational Citizenship Behavior dapat memediasi pengaruh motivasi intrinsik terhadap kinerja karyawan.

The characteristics of coastal plants in the form of river estuaries, estuaries, and deltas in protected areas in the sub-tropics and tropics are the notions of mangrove plants. It can be concluded that mangrove plants are ecosystems that exist between sea and land with conditions in the form of productive and extensive forests. Mangrove plants are also often called coastal forests, mangrove forests, brackish forests, tidal forests because mangrove plants live near the coast and have an important role in their ecological value to support coastal development activities and marine conservation. This research aims to find out the benefits and functions of mangroves, the types of mangroves, the meaning of mangroves, their role in overcoming some of the existing problems, as well as the differences before and after the planting of mangroves on the coast of Sine Tulungagung. This research method uses qualitative data which is a method for collecting and conducting observations, interviews, documentation, and analysis of various documents such as written documents, namely various journal reference sources and others in a descriptive way.

Perkembangan teknologi di era sekarang berkembang sangat cepat salah satunya di bidang industri. Di Indonesia industri mengalami kemajuan teknologi yang pesat, baik industri besar maupun kecil, berbagai teknologi bermunculan, dari teknologi yang baru ditemukan hingga perkembangan teknologi sebelumnya. Motor induksi adalah motor yang menggunakan medan magnet agar dapat mengubah energi listrik menjadi energi kinetik serta memiliki slip antara medan magnet stator dan medan magnet motor. Motor tiga fasa memiliki fitur yang dapat diatasi dalam beberapa instalasi, salah satunya adalah sistem penggerak bintang (Y)-delta multi sistem (Δ) yang sederhana dan dapat diakses oleh semua orang. Penelitian ini bertujuan untuk mengetahui sistem kerja pada star delta dengan motor tiga fasa. Metode penelitian yang digunakan yaitu metode eksperimen dengan menggunakan pendekatan kualitatif deskriptif. Sehingga hasil dan pembahasan pada penelitian ini yaitu dengan merancang sistem kontrol dengan beberapa tombol seperti star, delta dan off. Dimana hasil realisasinya pada rangkaian putaran motor akan mengalami kecepatan yang lebih tinggi ketika ditekan tombol delta. Jadi kesimpulannya tombol-tombol tersebut dapat mengatur kecepatan putaran motor induksi dari minimum hingga maksimum.