Publication Search

The rapid development of technology in the era of the Industrial Revolution 4.0 has driven the education sector to continuously adapt to the evolving demands of digital-based industries. One of the key technological innovations supporting this transformation is the Internet of Things (IoT), which enables data acquisition, real-time monitoring, and remote control of systems through internet networks. In response to these developments, a community service program was conducted to enhance the understanding and technical skills of students at SMK Negeri 1 Sindang through the provision and utilization of an IoT Trainer Kit Simulator as a practical learning medium. This activity aimed to bridge the gap between theoretical knowledge and industry-relevant technological applications by introducing students to hands-on IoT system implementation. The program included demonstrations and guided practice on the use of sensors, microcontrollers, and web-based monitoring platforms to simulate real-world industrial scenarios. The results indicate that students showed high enthusiasm and active participation throughout the activity. Moreover, participants were able to grasp the fundamental concepts of IoT systems, understand component integration, and recognize the relevance of IoT applications in supporting automation and digital transformation. Overall, this community service activity contributed positively to strengthening students’ digital competencies and preparedness for the demands of the contemporary industrial and technological landscape.

The Motor Operated Valve (MOV) is a critical component in fluid control systems at Steam Power Plants (PLTU). Training new technicians is often hindered by limited access to actual equipment and operational safety risks. This research aims to design and develop an Arduino-based MOV control module simulator capable of simulating basic functions such as open, close, stop, and limit switch responses. The method used is Research and Development (R&D) with an experimental approach. The simulator was tested using a DC motor as the simulated valve actuator, equipped with push buttons, relays, limit switches, and indicator lamps for visual feedback. The test results showed that the simulator successfully represented control functions with 100% accuracy in limit switch responses and consistent operation. User evaluations involving ten new technicians indicated an 85% satisfaction rate in terms of ease of understanding and operational safety. This simulator has proven to be an effective, interactive, and safe learning medium for new technicians at PLTU Nagan Raya.  

The braking system is a crucial component in a vehicle, where its performance is highly influenced by the wheel's rotational speed and the geometry of the brake pad. This study aims to analyze the impact of wheel rotational speed and variations in pad geometry on the temperature of the brake pad. The braking process generates heat due to friction, which, if not properly managed, can reduce braking performance and accelerate brake pad wear. The experiment was conducted at four levels of wheel rotational speed: 1000 RPM, 1500 RPM, 2000 RPM, and 2500 RPM. The testing system was designed using a braking system simulator equipped with a speed sensor (LM393) and a temperature sensor (K-type thermocouple), which were connected to an Arduino microcontroller and displayed in real-time through a Graphical User Interface (GUI) in MATLAB. The test results indicated that both the geometric shape of the brake pads and the wheel rotation speed significantly affected the resulting temperature. Standard brake pads produced the highest temperature at a speed of 2500 RPM, reaching 63.33°C. In contrast, brake pads with holes offered the best performance by maintaining a lower temperature of only 43.00°C. Furthermore, an increase in wheel rotation speed led to a noticeable rise in temperature; for standard pads, the temperature increased from 36.67°C at 1000 RPM to 63.33°C at 2500 RPM. This demonstrates that RPM is a major factor in heat generation due to friction. The MATLAB GUI effectively visualized the relationship between RPM and temperature, facilitating the analysis and evaluation of the data.

The Indonesian Naval Academy (AAL) is a military educational institution responsible for training young officers for the Indonesian Navy. The learning process at AAL is structured thru classroom theory, field practice, and direct simulations, including using the Engine Room Simulator (ERS) located under the Department of Engineering. The ERS is an important facility for supporting the technical mastery of ship engines for cadets. The operation of this simulator is highly dependent on the supply of electrical energy, with a total electrical power requirement of 14.36 kW. Thru this research, the author aims to design a hybrid solar energy system that can combine electrical energy from the PLN grid with alternative energy from sunlight. The potential for solar energy in the Indonesian Navy Academy area is very large. The average sunlight intensity in the Surabaya area over 1 year per hour is 208.33 W/m2. Therefore, in the design study, the author chose the Solar PV Lesso HPM series 550W solar panel, which has a power of 550W, an efficiency of 21.3%, and an area per panel of 2.583 m2. Based on the calculations obtained, the author used 126 solar panels with an area of 323.64 m2, as well as 24 Panasonic LC-P12100NA batteries with a voltage of 12 V and a capacity of 100 Ah, installed in 3 series and 8 parallel circuits.

The Naval Academy has many options in carrying out MOB practical training. The training is carried out in 2 places, namely at Kal Kadet and at the Andromeda Building "Bridge Simulator". However, the Andromeda Building has never been used at all in MOB practical training even though the Andromeda Building has the potential for sailor corps cadets to carry out MOB practical training. The time constraints often clash with regimental activities so that the cadets do not get maximum results. To reduce the collision between practical training and regimental activities that shorten the time during practical training, the researcher analyzed using the SWOT method so that it would produce several alternatives to overcome this situation. The stages that will be carried out to optimize the time given by the Institution are by utilizing the Andromeda Building to carry out MOB practical training.

This research aims to analyze the benefits of learning shipbuilding theory for cadets of the Technical Corps at the Indonesian Naval Academy (AAL) using a mixed methods approach. The research results show that mastery of shipbuilding theory significantly enhances the technical competence of cadets, particularly in understanding ship structure, stability, hydrodynamics, and propulsion systems, and contributes to their operational readiness in the TNI AL environment. However, the main challenges identified include the complexity of the material, limited laboratory and simulator facilities, and the gap between classroom theory and real-world application on warships. The effectiveness of learning is greatly influenced by interactive teaching methods, instructor competence, and the support of learning facilities. This research recommends the development of an adaptive curriculum, increased investment in simulation technology, and collaboration with the maritime industry to enrich the cadets' learning experience. These findings are expected to serve as a basis for the evaluation and development of the shipbuilding theory curriculum at AAL, as well as a reference for other maritime educational institutions in designing more applicable and relevant learning programs that meet operational needs in the field.

This research aims to identify and analyze the essential instructional tools needed in gas turbine learning for cadets of the Naval Academy's engineering corps using a mixed-method approach with an explanatory sequential design involving 160 respondents, consisting of 120 engineering corps cadets, 15 instructors, and 25 field engineering officers. The research results identified 28 types of gas turbine instructional tools categorized into four groups, with simulators and software showing the highest level of importance (4.65/5.0), and there were significant differences in the perception of importance levels among the three groups of respondents (F(2,157) = 12.45, p < 0.001). The AHP analysis produced a priority framework in four levels, with Level 1 encompassing 5 essential instructional tools: gas turbine simulator (0.742), gas turbine cut-section model (0.698), control system trainer kit (0.681), interactive learning video (0.673), and troubleshooting simulator (0.667). Regression analysis showed that instructional tools significantly contribute to learning effectiveness (R² = 0.742), with the gas turbine simulator as the main predictor (β = 0.384), positively impacting the cognitive aspect with a 26.8% increase in concept understanding (effect size 1.24), the affective aspect with an increase in learning motivation and career interest from 67% to 84%, and the psychomotor aspect with a 33.7% increase in hands-on skills and a 28.5% reduction in troubleshooting time. The resulting priority framework provides strategic guidance for optimizing resources and gradually developing gas turbine learning capabilities in military educational institutions, despite facing major obstacles such as budget constraints, technology compatibility, lack of quality human resources, and limited laboratory infrastructure.

IEEE 802.11ax WiFi 6 is the current standard for wireless local area network (WLAN) technology which is a development of the previous standard, namely IEEE 802.11ac (WiFi 5). WiFi 6 has new features that are superior to WiFi 5. For example, it can operate in the 6 GHz frequency band, use 1024-QAM modulation, and use a maximum of 8 spatial streams. In general, to test and verify the implementation of a network technology standard, researchers can buy hardware on the market that has implemented the standard in its entirety or only certain mandatory features. Apart from using hardware directly, testing can also be done using software simulations. This research aims to study the WiFi model in the ns-3 simulator and simulate the IEEE 802.11ax WiFi 6 network. The simulation is carried out to measure the uplink throughput that can be achieved by WiFi 6 with various numbers of client stations (STA) and various distances between the Access Point (AP) and STA. The simulation results show that the throughput value will decrease with increasing AP-STA distance and the number of STA. The maximum throughput value obtained in the simulation with 5 STA at a distance of 2 meters from the AP is 655.41 Mbps.

This research investigates the integration of maritime law education and navigation skill development within vocational school settings. By leveraging qualitative methods, the study engages maritime professionals and vocational educators to assess curriculum effectiveness and alignment with industry standards. Key findings highlight the importance of practical application in maritime law education, emphasizing case studies and scenario-based learning to prepare cadets for real-world challenges. Simulator training emerges as pivotal in developing navigation skills and critical decision-making abilities essential for safe maritime operations. The study also underscores the significance of regulatory compliance, advocating for continuous curriculum adaptation to meet evolving STCW and IMO regulations. Recommendations include enhancing collaboration between stakeholders, expanding experiential learning opportunities, and integrating regulatory awareness throughout educational frameworks. By fostering these initiatives, vocational schools can nurture competent maritime professionals equipped to navigate global maritime challenges while upholding safety, sustainability, and regulatory standards.

This research investigates the integration of sustainability principles and digital advancements in maritime law education within vocational training programmes. Drawing on qualitative perspectives from maritime professionals and educators, the study identifies critical areas for curriculum enhancement and skill development. Key findings highlight the industry's emphasis on regulatory compliance, safety management, and the use of digital technologies in maritime operations. The research underscores the importance of practical training modules, simulation-based learning, and industry partnerships in preparing cadets for real-world challenges. Expertise from industry stakeholders informs curriculum design, focusing on digital navigation tools, safety protocols, and regulatory frameworks like STCW and IMO standards. Assessment of cadet readiness reveals strengths in theoretical knowledge but emphasizes the need for more extensive practical training. Innovative approaches using simulators and online platforms enhance learning outcomes and operational efficiencies. The study concludes with recommendations for ongoing collaboration between academia and industry to sustain curriculum innovation and prepare a competent workforce for the evolving maritime industry.

This study aims to analyze the performance of the OSPF routing protocol in a tree topology using the Cisco Packet Tracer simulator with a router configuration, and a PC/computer. This research involves building a tree topology consisting of several router nodes and PC/computers, where OSPF is implemented to manage routing. Tests were conducted using steady ping on PC to PC, PC to router and PC to server to measure network performance in terms of latency and reliability. The test data was analyzed to evaluate OSPF convergence, network stability and rounting efficiency. The results of this study provide insight into the effectiveness of OSPF in a tree topology.

This journal reviews the use of Cisco simulators in building and analyzing ring topology networks and the routing protocols used in them. Ring topology is one of the commonly used network topologies where all nodes are directly connected to form a circle. The routing protocol in ring topology uses Bellman Ford and Dijkstra algorithms to determine the best path. The main focus of this research is on Enhanced Interior Gateway Routing Protocol (EIGRP), a routing protocol developed from Interior Gateway Routing Protocol (IGRP). EIGRP enables fast convergence and efficiency in data transmission in the network. The research methods used are literature and simulation methods using Cisco Packet Tracer software.    

Data communication is a field of science that studies the process of sending data, as well as how data can be received from sending and receiving terminals. A computer network is a set of "interconnections" between 2 or more autonomous computers connected by cable or wireless transmission media. Cisco packet tracer is a network simulation application developed by Cisco as a simulator as a learning medium for Cisco devices. Peer-to-Peer (P2P) network simulation using Cisco Packet Tracer software is an effective method for understanding, designing, and analyzing P2P networks in a controlled environment. The method used is literature study and carrying out simulation practice on Cisco Packet Tracer software to simulate a network. This research method aims to outline the steps and procedures required to simulate a Peer-to-Peer (P2P) network using Cisco Packet Tracer software. This abstract presents a brief view of the simulation approach used to model and examine the performance of a P2P network using Cisco Packet Tracer contains implementation steps for peer to peer network simulation. Through simulation, in-depth performance analysis can be carried out on various aspects of P2P networks, such as throughput, latency and reliability. This allows researchers and practitioners to understand how P2P networks behave under various conditions. Thus, P2P network simulation with Packet Tracer provides a useful tool for researchers and practitioners to understand and optimize P2P network performance in various scenarios.

Driving in a straight line is one of the fundamental tasks for autonomous vehicles, but it can become complex and challenging, especially when dealing with high-speed highways and dense traffic conditions. This research aims to explore the Deep-Q Networking (DQN) model, which is one of the reinforcement learning (RL) methods, in a highway environment. DQN was chosen due to its proficiency in handling complex data through integrated neural network approximations, making it capable of addressing high-complexity environments. DQN simulations were conducted across four scenarios, allowing the agent to operate at speeds ranging from 60 to nearly 100 km/h. The simulations featured a variable number of vehicles/obstacles, ranging from 20 to 80, and each simulation had a duration of 40 seconds within the Highway-Env simulator. Based on the test results, the DQN method exhibited excellent performance, achieving the highest reward value in the first scenario, 35.6117 out of a maximum of 40, and a success rate of 90.075%.

The influence of the development of Science and Technology (IPTEK) on the world of education, so that both teachers and students are required to always adapt to existing developments. Technology is the result of knowledge originating from the world of education therefore the world of education should utilize technology to increase efficiency in learning. Chemistry among students is still considered material that is difficult to understand. One of its attractions is the abstract nature of chemical material. Chemistry learning does not only include theoretical learning but also includes practical activities. This research was carried out to determine the effect of using a virtual laboratory on students' skills during direct practicum. The method used in this research is a quantitative method that uses a lot of numbers, starting from data collection, interpretation of the data and presentation of the results. A total of 52 students in class XI, Department of Mathematics and Natural Sciences at SMA Negeri 1 Sliyeg. Presenting the results in the form of a representative table will increase the reader's level of understanding and make it easier to access information. Virtual laboratories help students understand the practical process. Based on the results of data analysis obtained from filling out the questionnaire, it was found that 78.8% or the majority of students answered agreeing that the virtual laboratory had an effect on increasing pH testing. This proves that the use of virtual laboratories can be a way out so that when doing direct practicum students do not experience difficulties and the practicum runs more effectively.

Quantum computing has emerged as a revolutionary paradigm, holding immense potential to solve complex problems that classical computing struggles to address. This study explores the application of quantum computing in cryptography, with a specific focus on two major quantum algorithms: Shor’s algorithm for large number factorization and Grover’s algorithm for unstructured database searching. The main objective of this research is to compare the performance of these quantum algorithms with classical cryptographic methods in terms of computational efficiency and time. Shor’s algorithm, which can factorize large numbers in polynomial time, presents a significant threat to the security of public-key cryptosystems such as RSA, which rely on the difficulty of factoring large numbers. On the other hand, Grover’s algorithm offers a quadratic speedup for searching unstructured databases, making it highly relevant for symmetric key cryptography systems like AES. In this study, simulations of both algorithms were conducted using quantum simulators to assess their speed and effectiveness in solving cryptographic challenges. The results demonstrate that quantum algorithms significantly reduce the computation time compared to classical methods, with Shor’s algorithm efficiently solving factorization problems and Grover’s algorithm accelerating key searching processes. However, while these quantum algorithms show promise in improving cryptographic systems, the implementation of large-scale quantum computers remains a challenge. This research highlights the potential of quantum computing to revolutionize data security and underscores the need for further development in quantum algorithms and the transition to quantum-resistant cryptographic systems to safeguard against the threat posed by quantum computers.

Latar Belakang: Lymph node cancer in the case of Hodkin's Lymphoma is a type of cancer. Lymphoma is a solid tumor of the immune system. Hodgkin lymphoma (HL) accounts for about 10% of all lymphomas. The Intensity Modulated Radiation Therapy (IMRT) technique is one of the cancer treatment techniques in Hodgkin's Lymphoma cases. The aim of this research is to determine the procedure and reasons for using the IMRT technique in lymph node cancer in Hodkin's Lymphoma cases.Metode: This research is qualitative research with a case study approach using retrospective data. The research time is from 24 to 30 May 2023 and the research location is in the Department of Radiation Oncology, RSUP Dr. Hasan Sadikin Bandung. The research subjects consisted of Radiation Oncologists, Medical Physics, Radiotherapists. Researchers collected data from patient medical records, made interview transcripts and carried out data reduction and processed it using open coding, and provided it in the form of quotations and then drew conclusions.Hasil: The procedure for irradiating Hodgkin's Lymphoma using the IMRT technique at the RSHS Department of Radiation Oncology begins with positioning the patient on the examination table with a fixation device and arranging the patient according to the reference point of the CT Simulator and making a thermoplastic mask then carrying out verification and irradiation. The IMRT technique has the advantage of using MLC so that the radiation is modulated according to the contour of the target and the disadvantage of precise dose distribution in limiting the radiation dose to organs at risk.Kesimpulan: In the case of the Department of Radiation Oncology, Dr. Hasan Sadikin Hospital, Bandung, the IMRT technique was used with consideration, namely that the IMRT technique already uses MLC which creates individual blocks automatically according to the projections depicted on the TPS.  

The 3DCRT field in field (FIF) technique used in Post MRM breast cancer patients at the Radiotherapy Unit at Lavalette Hospital Malang uses 4 copy fields including supraclavicular (AP), axilla (PA), tangential (ML/LM). However, in the Radiotherapy Unit at Lavalette Hospital, Malang, the immobilization device does not use a breast board but uses an abdominal thorax or AIO Breast And Lung Board. The aim of this study is to describe the management or procedures for administering 3DCRT field in field (FIF) radiotherapy with abdominal thorax immobilization in Post MRM breast cancer patients at the Radiotherapy Unit at Lavalette Hospital, Malang. Treatment of 3DCRT field in field (FIF) radiotherapy with abdominal thorax immobilization in Post MRM breast cancer patients at the Radiotherapy Unit at Lavalette Hospital Malang consists of an examination and consultation with a radiation oncology specialist, CT Simulator, then treatment planning system (TPS), verification carried out before the first fraction and participation stage. The advantage of using the 3DCRT field in field (FIF) technique with abdominal thorax immobilization in Post MRM breast cancer patients at the Radiotherapy Unit at Lavalette Hospital, Malang, is that the copying area is simple, the copying comfort is better, it can reduce hotspots, and it can reduce the dose received by the organs in the area. risk (OAR). The disadvantage is that it requires more precision, especially RTT as an operator for the use of additional immobilization devices other than the 5 degree abdominal thorax.

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 challenges of the 21st century nursing world demand that nursing educators be able to prepare future nurses who can adapt to changes in the health care system, new technologies, changes in information systems (computerized), changes in pharmacological therapy, increased workload for nurses, increased infectious diseases in the community. , increasing cases of antibiotic-resistant infections, increasing aging population, and increasing number of chronic and co-morbid conditions (Aiken, Clarke, Cheung, Sloane, & Silber, 2003). Nurse educators are responsible for preparing graduates who can adapt to this rapidly changing health system. The simulation learning strategy is proposed as a suitable method to overcome this problem and can bridge the gap between education and clinical practice in hospitals. This literature search aims to analyze the results of related research that focuses on the effect of Simulation-Based Learning on the critical thinking of nursing students. This study was conducted using the review method of research results from 2010 – 2020 which have been published in electronic media such as ProQuest, Pubmed, and CINAHL. The number of journals obtained was 10 journals and 6 of them met the criteria. The conclusion of the research results obtained was that simulation is an interactive teaching-learning process, learning knowledge about critical care from a simulation of real patient situations, learning clinical skills and presenting holistic patient care by playing a role , and bridging the theory-practice gap to enhance critical thinking. In addition, simulations can hone critical thinking skills through feedback from simulators and monitor displays, develop communication skills through teamwork, and improve task delegation skills in complex situations.