Publication Search

This study presents a modal analysis of Pertamina EP Cepu’s closed drain pump 510-P9002, which operates in the condensate–water treatment unit of the Jambaran Tiung Biru field. Field vibration measurements conducted in August 2024 indicated a fundamental frequency of 25 Hz, corresponding to 1×RPM of the driving motor, with maximum amplitudes reaching 13.46 mm/s. Such excessive vibration poses risks of mechanical damage, reduced equipment service life, and potential operational failure. To address this issue, finite element analysis (FEA) was employed to examine the dynamic response of the pump, determine its natural frequencies, and identify possible resonance conditions. A CAD model of the pump–vessel assembly was developed, meshed, and analyzed under actual boundary conditions. The results showed several natural frequencies ranging between 23.16 and 26.65 Hz, which are close to the excitation frequency, suggesting a very high likelihood of resonance. Various structural modifications were then evaluated, including a half casing and two types of full casings. Among these, the full casing B design provided additional stiffness in the motor support area; however, none of the modifications effectively reduced vibration within the internal components. Based on these findings, the study recommends the implementation of a dynamic vibration absorber (DVA) tuned to the excitation frequency, along with the redesign of structural components to shift natural frequencies away from operating excitation. These solutions are expected to improve operational stability, extend equipment lifespan, and enhance overall system reliability. The outcomes of this research provide important insights for managing vibration issues in pump systems operating under similar conditions, particularly in the oil and gas industry where continuous, stable operation is critical.

The Sugio–Tlanak Road Section, Sugio District, Lamongan Regency, is a vital transportation infrastructure as it connects interregional activities, both in economic, social, and community mobility aspects. This road is the main route used by various types of vehicles, from light vehicles to heavy vehicles with quite high traffic intensity. This condition has a significant impact on the quality of the road pavement, as indicated by the presence of various types of damage at several points, such as cracks, potholes, and road surface deformation. Therefore, a comprehensive evaluation is needed to determine the level of road damage as a basis for consideration in planning maintenance and repairs. This study uses two assessment methods, namely the Bina Marga method and the Pavement Condition Index (PCI). The Bina Marga method assesses road conditions based on the Surface Distress Index (SDI) value obtained from direct identification in the field. The evaluation results show that the road condition on the Sugio–Tlanak section is classified as severely damaged at 60%, moderately damaged at 30%, and good condition at only 10%. Meanwhile, the PCI method provides results in the form of more detailed quantitative values. The analysis results obtained an average PCI score of 58.6, which is included in the Fair category. A comparison of the two methods shows that the Bina Marga method has advantages in terms of speed and ease of implementation, but its assessment is relatively subjective. In contrast, the PCI method provides more accurate and measurable results because it uses a quantitative approach with clear damage condition parameters. Therefore, although the Bina Marga method can still be used for rapid assessments in the field, the PCI method is more recommended as a basis for technical decision-making in planning road maintenance and quality improvement programs.

Self-medication is a form of pharmaceutical service that allows the public to treat mild symptoms independently without a doctor’s prescription. While beneficial, improper self-medication practices can pose health risks such as drug resistance and misuse of prescription-only medicines. If not carried out carefully, it may lead to further issues such as bacterial resistance and dependency. This study aims to evaluate the self-medication services at Sehat Farma Pharmacy in Banjarharjo. A descriptive method was employed using interviews and direct observations to provide a comprehensive overview of self-medication practices in the field. Informants included a pharmacist, pharmaceutical vocational staff, and patients engaged in self-medication. The results indicate inconsistencies in the service flow, including the provision of prescription-only medications without proper medical consultation. There is a need to improve the understanding and adherence to appropriate service standards to enhance the safety and effectiveness of self-medication practices.

This research aims to analyze the crucial role of the shipping agency—specifically PT. Maritime Network Indonesia Dumai Branch—in preparing the vessel departure and arrival schedule (line-up). Line-up preparation is a strategic process that involves vessel plotting at Pelindo Dumai Port and is vital for supporting the smooth running of port operations and loading/unloading activities. The research methodology includes field research (field research) to observe direct practices at the port and literature review (library research) to reinforce the theoretical and regulatory foundations. The findings confirm that the shipping agency plays an important role in ensuring the efficiency of the port schedule. Nevertheless, in practice, the line-up preparation process faces several significant challenges. These obstacles include the limited authority of local agents in independently determining vessel plotting, restricted coordination meeting schedules, and the continued use of manual and inefficient communication methods. This lack of integrated communication often leads to inaccuracies in the initial line-up preparation, forcing agents to recalculate the previously arranged vessel positions. The conclusion of this study suggests the need for developing an integrated system that facilitates real-time communication and reporting to all relevant agencies. Adopting a digital system will enhance process efficiency, ensure proper documentation, and minimize errors, thereby accelerating the vessel plotting coordination process in the field.

The thesis entitled, "Analysis of the Impact of Worship Based on John 4:23 on the Spiritual Growth of the GBI Patuha Bandung Congregation."John 4:23 can provide the teachings of the Lord Jesus about worship and the extent of its impact on the spiritual growth of the congregation. The research aims to explore how worship in the context of church services affects spiritual growth, including heart transformation, spiritual renewal, and character development in Christ. This study uses a qualitative descriptive approach to analyze the impact of worship based on John 4:23 on the spiritual growth of the congregation at Gereja Bethel Indonesia (GBI) Patuha, Bandung. Data were collected through interviews with leaders, activists, and church workers, as well as direct observations in the field. The results show that worship, as described in John 4:24, is a vital aspect of the spiritual life of the GBI Patuha congregation. The church has undergone significant transformation by shifting its focus from teaching to worship, with the aim of deepening a personal relationship with God. Worship is not only an emotional activity but also a means to strengthen faith, renew the spirit, and shape Christ-like character in the lives of the congregation. Worship grounded in the Word of God and the guidance of the Holy Spirit positively impacts the church community, encouraging active service and devotion to God and others. The congregation experiences heart transformation and spiritual renewal, which strengthens their relationship with God. Furthermore, worship focused on God encourages the congregation to live in humility, love, and obedience, as well as increasing their enthusiasm for serving. Innovations such as providing digital worship platforms also extend the church’s reach and enhance congregational involvement. This study also recommends the development of more structured worship training to deepen theological understanding and correct worship practices according to biblical principles.

The development of hardware and software technology has developed rapidly in recent years. Currently, companies are still experiencing difficulties in processing data and information. Spare parts that are not available when needed can hinder maintenance and repair plans. For this reason, controlling spare parts inventory in the Asia Jaya Motor workshop company is very necessary to maintain the quality of goods. Asia Jaya Motor Workshop is a business operating in the automotive sector, where this place cannot be separated from an accurate information system. However, data management still uses manual methods, seeing the problems that occur at the Asia Jaya Motor Karawang Workshop, very high accuracy, convenience and speed are needed. The aim of this research is to obtain an effective and efficient spare parts inventory analysis so that spare parts procurement and control plans can be accurate in supporting maintenance and repair programs. The data collection techniques for this research are library research and field research. So, the total cost of spare parts inventory in the 2011-2014 period according to the Economic Order Quantity method for each spare part has increased. The total cost (total cost) of spare parts inventory according to the Economic Order Quantity method is lowest in the 2021 period and the total cost (total cost) of spare parts inventory is the highest in the 2023 period.

Artificial Intelligence (AI) has significantly transformed the design industry by introducing innovative tools that enhance efficiency, creativity, and personalization in the design process. This article explores the impact of AI technologies on the practice of modern designers, from the early stages of idea generation to the final execution of projects. By analyzing case studies, conducting surveys, and reviewing recent literature, the study reveals that AI functions not only as a tool but also as a collaborator that expands the boundaries of human creativity. It allows designers to explore new possibilities and push the limits of traditional design processes. However, the integration of AI into design practices also raises important ethical and professional challenges, such as concerns about job displacement, data privacy, and the potential loss of human touch in the creative process. Despite these concerns, the findings highlight that embracing AI is crucial for designers to remain competitive and sustain their careers in the rapidly evolving digital era. Adapting to AI technologies, understanding their capabilities, and effectively incorporating them into creative workflows will enable designers to stay relevant and thrive in a landscape where technology continues to reshape the industry. This study provides insights into the evolving relationship between human designers and AI, offering recommendations for future research and practice in the field of design.

Sexual violence is any act of humiliating, insulting, attacking, and/or other acts against a person's body, sexual desires and/or reproductive function by force. This form of sexual violence can occur in everyday interactions among teenagers, including when they start having relationships with the opposite sex. This can be minimized in various ways, one of which is by providing motivation for teenagers to prevent acts of sexual violence. Motivation given to teenagers can be in the form of learning media, one of which is digital poster media. Digital poster media is more effective as an outreach medium because it helps stimulate the sense of sight, the visual aspect of poster images makes it easier to receive information. The aim of this research is to determine the development of digital poster media in preventing sexual violence against teenagers at Senior High School 5 Surakarta. This research method uses Research and Development (R&D), with the ADDIE model being developed in 5 stages, namely (Analysis, Design, Development, Implementation, Evaluation). The results of this research obtained an assessment of digital poster media from material experts 96%, media experts 67%, small scale trials 83.3%, and field trials 83.83%, so it can be concluded that the media developed is "very feasible" to be used in preventing sexual violence against teenagers at Senior High School 5 Surakarta

The level of healthcare quality is determined by the extent to which societal or individual requirements for healthcare are met in alignment with high professional benchmarks, while ensuring prudent resource utilization and impact within government and societal constraints. In addition, it must be delivered in a safe and satisfactory manner to patients, following ethical standards and best practices. Quality indicators of health services in hospitals have challenges in improving the overall quality of health services. In the Cardiac Poly Outpatient Unit at Kendari City Hospital, it is necessary to know the strategies used in improving service quality. The purpose of this study is to ascertain the Strategy for Improving the Quality of Health Services in the Cardiac Poly Outpatient Unit at Kendari City Hospital in 2024. The research methodology used is qualitative and descriptive, using the Phenomenal model to investigate various phenomena in Kendari City Hospital with data collection techniques, namely field observations at the research location and also in-depth interviews with informants who have been determined. The results showed that the quality strategy of health services provided by the Kendari City Hospital is quite good, especially in the Cardiac Poly Outpatient Unit. However, considering the importance of health services, it must always be improved so that the quality of health services received by the community is always maintained. There are still many things that must be considered, for example, the problem of waiting rooms that must be added to the seats for visitors and the speed of service that must still be improved.

This research explores the role of missional entrepreneurship in increasing the effectiveness and sustainability of Yayasan Pintu Sinar Abadi's (YPSA) ministry in Bandung. Based on the principle of ministry described by the Apostle Paul in 1 Thessalonians 2:7-9, this article discusses how missionary entrepreneurship can optimise YPSA's financial independence and strengthen its social impact. Descriptive qualitative methods were used in this research, including in-depth interviews and field observations. The results show that a missional entrepreneurship approach improves the efficiency and effectiveness of social services in YPSA, as well as opening up more sustainable economic opportunities for the communities served.  

Chat Generative Pretrained Transformer (ChatGPT) has rapidly gained popularity and is increasingly utilized across various fields, including education, where it plays a significant role as a supporting tool for academic tasks. In the educational context, ChatGPT can assist students in preparing and completing a wide range of assignments, providing quick access to structured information and alternative perspectives. This study was designed to explore the views of both students and lecturers on the integration of ChatGPT in academic activities, specifically as a support system for handling student assignments. Employing a descriptive qualitative approach, data were collected through interviews with 5 students and 6 lecturers from the Business Education Study Program at the State University of Surabaya. The findings reveal contrasting yet complementary perspectives. From the students’ point of view, ChatGPT offers considerable benefits, particularly in enhancing independence, efficiency, and time management when working on lecture assignments. However, these advantages are accompanied by drawbacks, such as decreased creativity, reduced critical thinking, and diminished interest in consulting traditional learning resources like books. On the other hand, lecturers acknowledge the usefulness of ChatGPT in simplifying student work and accelerating the completion of assignments but express concerns regarding the overreliance on artificial intelligence, which could potentially hinder the development of essential academic skills. Overall, the research suggests that while ChatGPT presents valuable opportunities to enhance learning processes, it must be applied thoughtfully, with careful guidance from educators to balance efficiency with the cultivation of creativity, critical thinking, and academic integrity.

The agricultural sector plays a crucial role in the Indonesian economy, contributing significantly to Gross Domestic Product (GDP), employment, and national food security. Conventional financing is often poorly suited to the unique characteristics of the agricultural sector, prompting the exploration of more adaptive alternatives. Islamic banking, with its principles of fairness and risk-sharing, offers innovative financing solutions. One such contract with significant potential but underutilized is the Salam contract, a purchase-and-sell contract where payment is made upfront and goods are delivered at a later date. This study aims to analyze the characteristics of the Salam contract in depth, identify challenges and opportunities in its implementation in the Islamic agricultural sector, and formulate strategies for optimizing its application. Using a qualitative descriptive research method based on literature review and comparative analysis, this article finds that the Salam contract offers an effective financing solution for farmers' working capital needs, price risk mitigation for farmers, and supply security for buyers. Key challenges include the risk of crop failure, quality risk, moral hazard risk, and limited supporting infrastructure and market understanding. Optimizing the Salam contract can be achieved through the development of innovative contract models, strengthening risk management through takaful instrumentation, utilizing digital technology, improving Islamic financial literacy, and collaboration between stakeholders. The implications of this research are expected to provide practical guidance for Islamic financial institutions, farmers, and policymakers to create a more inclusive and sustainable Islamic agricultural financing ecosystem. With the right approach, the Salam contract has the potential to become a key instrument in Islamic agricultural financing. Its widespread implementation can drive the transformation of the agricultural sector toward a more productive and equitable direction. Sustainable efforts are needed to ensure its effective implementation in the field.

Unemployment is a very serious problem in the economy because it affects a person's life physically and mentally. The government responded to this problem by creating a labor-intensive program. The labor-intensive program is an initiative that aims to empower the community, especially productive poor families. This program is designed to achieve several goals, namely reducing unemployment, alleviating poverty, and increasing people's sources of income through the use of natural resources, technology, and workers. This research aims to evaluate the implementation of community empowerment through labor-intensive programs in Gubeng District. This research was conducted with a qualitative descriptive approach and used George C. Edward III's policy implementation theory. The research results show that the implementation of the labor-intensive program in Gubeng District is in accordance with Surabaya Mayor Regulation Number 83 of 2023. However, there are several obstacles to implementation, namely the lack of public interest in the labor-intensive program. Therefore, it is hoped that the Gubeng District government will be more aggressive in providing information regarding labor-intensive programs via social media with the aim of increasing public interest. The government must also evaluate and carry out direct monitoring in the field in the implementation of labor-intensive programs in Gubeng District.  

The objective of this community service activity is to facilitate the development of students' talents and interests in dance art. In addition to demonstrating proficiency in existing dance forms, students are expected to demonstrate the capacity to create original dance compositions inspired by local traditions. It is therefore essential to enhance the creativity of students in order to facilitate the development of their cognitive, psychomotor and affective abilities in alignment with the requirements of the curriculum. The Meusare creation dance training programme was conducted over a three-day period, from 9 am to 11 am, utilising a demonstration approach that integrated lecturers and students in the practice of diverse movement techniques. The dancers participating in the programme are students who have demonstrated aptitude and interest in the field of dance. The group comprises 10 women and 10 men. As a consequence of this training, the students were able to perform the Meusare-sare with their group, in a simple stage setting in front of the principal, the board of teachers, and all students at the school. The students' performance is the result of training in the form of PBL and can be appreciated by the school and other parties, thus ensuring the continuity and utility of this service.

Contemporary hadith thought emerged as an attempt to address the challenges of modernity, which demands a more contextual understanding of Islamic teachings. Various new approaches, such as historical-critical, hermeneutics, and the maqasid al-shari'ah (the principles of Islamic jurisprudence), have been developed to connect hadith texts with modern social, political, and scientific realities. This article examines critiques and reflections on contemporary hadith thought through an interdisciplinary approach. The results show that although contemporary approaches make significant contributions to revitalizing the relevance of hadith, they have weaknesses such as potential relativism, deconstruction of hadith authority, and a disconnect with the classical tradition of hadith scholars. Interdisciplinary reflection offers a middle ground by integrating hadith studies with the social sciences, humanities, and sciences, allowing understanding of hadith to continue to develop without losing its normative authority. This article emphasizes the importance of dialogue between classical traditions and modern approaches in maintaining a balance between fidelity to the text and contextual needs. An interdisciplinary approach to hadith studies can bridge these gaps by fostering dialogue between traditional Islamic scholarship and modern academic fields such as social sciences, humanities, and natural sciences. By combining these disciplines, scholars can explore how hadith texts can be interpreted in ways that are both faithful to their original meaning and responsive to contemporary challenges. This integration can help preserve the normative authority of hadith while addressing modern issues such as ethics, politics, and technology. Ultimately, the interdisciplinary approach provides a framework for reconciling the classical and modern understandings of hadith, ensuring that the teachings of Islam remain relevant and authoritative in today’s rapidly changing world.

Ineffective management of household waste in rural areas, such as Aek Korsik Village, Aek Ledong District, Asahan Regency, causes air pollution due to traditional waste burning practices. This research aims to design and implement an environmentally friendly low-smoke waste incinerator as an alternative solution based on simple technology and local resources. The research methods used are technological engineering approaches and field studies, including tool design, trials, and environmental and social impact evaluation. The furnace is designed using heat-resistant local materials and mild steel, features a dual ventilation system and a smoke exhaust system with a simple filter, and has a combustion capacity of 5 kilograms per cycle. Preliminary studies show that the composition of waste is dominated by organic matter (60%), plastic and paper (30%), as well as the rest are inorganic. Testing over several weeks showed that an average burn time of 1.5 hours was able to reduce smoke emissions by up to 60% compared to conventional methods. The air quality around the test site has improved significantly, and the community has responded positively to the ease of use and environmental benefits of the furnace. This study concludes that low-smoke combustion furnaces are effective as environmentally friendly waste management solutions in villages, with recommendations for increasing combustion capacity and integrating other waste management methods to support sustainability and environmental preservation.

This study aims to analyze land cover changes in Pariaman City in 2013, 2018, and 2024 using Landsat-8 imagery with the support of the Google Earth Engine (GEE) platform and the Classification and Regression Trees (CART) algorithm. Land cover change is a critical issue in Pariaman City, as population growth, infrastructure development, and economic activities have driven significant land conversion. The classification generated eight land cover classes representing the general condition of the area. The analysis revealed that rice fields were the dominant land cover in all three periods; however, they experienced a substantial decline, indicating land conversion, particularly into settlements and road networks. In addition, the area of mangrove forests and water bodies in coastal regions decreased, while plantation areas in the eastern and southern parts of the city increased. Conversely, river land cover remained the smallest category, with annual fluctuations. The identified change patterns included urban sprawl (expansion of settlements into suburban areas), the conversion of productive land into infrastructure, and coastal degradation due to human activities and natural factors. The accuracy assessment produced overall accuracy and a Kappa index above 80%, while validation using the Mapping Accuracy method through Google Earth showed per-class accuracy rates above 75%, categorized as very good. These findings indicate that the use of satellite imagery and the CART algorithm in GEE is effective for monitoring land cover dynamics while providing valuable insights for local governments in formulating sustainable development policies and managing coastal environments such as those in Pariaman City.

Coal is one of the main energy sources and the largest contributor to national revenue; however, its management faces challenges related to limited availability and accuracy in reserve estimation. An essential aspect of mining management is monitoring the Run of Mine (ROM) volume, which plays a critical role in crushing, washing, and blending processes. This study aims to compare the accuracy of ROM volume measurements using Terrestrial Laser Scanner (TLS) and Unmanned Aerial Vehicle (UAV) methods in the production area of PT FAD, Berau Regency, East Kalimantan. A quantitative descriptive approach was employed, involving field data acquisition, three-dimensional modeling, and volume analysis using specialized software. The results show that ROM volume measured with TLS was 1,407.669 lcm, while UAV produced 1,387.357 lcm, with a difference of 20.312 lcm or 1.45%. This deviation is within the ASTM D6172-98 tolerance limit (<2%), indicating that both methods are valid. Although TLS offers higher accuracy, UAV is more effective and efficient in terms of measurement time, making it a reliable alternative for modern mining monitoring. This study provides practical insights for the mining industry in selecting ROM volume measurement methods that are not only accurate but also efficient in supporting sustainable operations and data-driven decision-making.

Efficient operations of PT PLN, as a vital electricity provider, heavily rely on effective service management, including customer data collection and payment processing. Employee performance supervision is crucial to ensure optimal results and customer satisfaction, given that traditional manual systems often suffer from inefficiencies, inaccuracies, and delays. This research aims to develop and implement a web-based performance monitoring system for electricity bill delivery officers to enhance operational efficiency and accountability at PT PLN. The Waterfall method was adopted as a systematic development framework, encompassing stages of requirements analysis, design using Unified Modeling Language (UML) such as use case diagrams and activity diagrams, implementation with PHP and MySQL, and black box testing to validate system functionality. The results of the black box testing indicate that all main functions of the system, including user authentication, user data management, uploading of daily reports and supporting files by officers, and the administrator's ability to monitor and review reports, function as expected. The successful implementation of this system indicates its capability to overcome the limitations of manual methods and provide real-time visibility into the performance of field officers. Thus, this web-based monitoring system not only contributes to improving data accuracy and operational efficiency at PT PLN but also supports more informative and strategic managerial decision-making, aligning with digital transformation initiatives in the energy sector

Monitoring is an activity that examines a condition to obtain all necessary information. The outcomes monitoring can act as a guide for formulating strategies. Researchers found that in Kalembu Kaha Village, the monitoring of ongoing activities is still carried out traditionally, where the Kaur must go directly to the field to witness existing activities. Therefore, it is important to develop a monitoring system application so that all activities tracked instantaneously. In addition, this will facilitate effort Village Head to evaluate the progress of projects or activities carried out so that they can be on time. Through this research, was identified application, the Village Head can more easily monitor and supervise activities carried out by village officials. This allows the Village Head to evaluate and take action quickly and efficiently