Publication Search

This study aims to determine and analyze service waiting times, identify the root causes of long queues, and develop a strategy to improve service performance at the 5361137-gas station (SPBU) at the Surabaya-Gresik Toll Rest Area. The research method used is a mixed-methods approach with an exploratory sequential design. This study combines quantitative analysis using Queuing Theory to measure system performance (arrival rates and service times) and descriptive qualitative analysis using a Fishbone Diagram. Data were collected through direct observation, interviews, and g-form techniques. The results indicate that the current queuing system performance is in a critical or severe condition, indicated by a server utilization rate of 0.94 to 1.02 during peak hours. The average time spent by vehicles in the system is 14.3 minutes, of which 9.6 minutes (67%) is spent waiting in the queue. Fishbone diagram analysis revealed that the root cause of the main problem lies in the complex interaction of factors: Machine factors (EDC signal failure and pump repair downtime), Human and Method factors (implementation of static shifts and reactive maintenance), and Environmental factors (narrow layouts that hinder large vehicle maneuvers). As a solution, this study formulated a hybrid improvement strategy that includes short-term business process engineering (the use of Floating Staff and lane segregation) and long-term investment in additional pumps to change the queuing model from Single Channel to Dual Channel. This strategy is expected to reduce the utility level to a safe zone below 0.80 with a target waiting time of 3–5 minutes.

The implementation of the concept of sustainable fashion is an effort carried out by fashion players to create sustainable fashion products so as to reduce the impact of fast fashion. Forms of implementing the concept of sustainable fashion include the zero waste puttern cutting technique and the use of natural dyes. Cutting techniques without leaving scraps and liquid waste produced from the textile production process. The purpose of the study was to determine the process of implementing zero waste in ready to wear with ecoprint natural dye textiles. The data collection methods used are observation, documentation and literature methods. The analysis used in this study is qualitative data analysis. The process begins with creating ecoprint motifs using steam techniques and adding cibori motifs, the process of creating designs and planning the layout of the pattern components, and planning the layout of patterns on ecoprint materials, the cutting process, installing tricot, followed by the sewing process to unite the pattern components. The initial stage in this process is sewing the top. Conclusion of the process of applying the zero waste puttern cutting technique with ecoprin natural dye textiles is one of the visionary concepts where creating clothes starts from making motifs. with ecoprin natural dye textile is one of the visionary concepts where creating clothes starts from making motifs with natural dyes and continues with efforts to minimize fabric waste by applying the zero waste concept to the cutting pattern process and continues with the sewing process until completion, so that it can be used as a solution and reference in the fashion field for making clothes sustainably. Suggestions for applying the zero waste concept to be more optimal, the design of motif designs and pattern designs should always go hand in hand so that all motifs can be used and in accordance with the design to minimize fabric waste and dye waste.  

In the midst of the demand to actively publish scientific papers, the ability to design is a significant added value for teachers and lecturers. This report outlines a monograph book layout design training with Canva held for academics at PPMULTINDO. The main purpose of this activity is to provide practical skills so that participants can independently produce professional book layouts. This training uses an interactive workshop method, where participants are guided from the introduction of Canva's features, the application of design principles, to the practice of preparing layout chapters by chapter. As a result, participants demonstrated a significant improvement in their ability to operate Canva for publication design needs. They are able to produce a structured, consistent, and visually appealing layout. Thus, this training has succeeded in becoming a practical solution for academics to efficiently improve the visual quality of their monograph books

Traditional games are an important part of cultural heritage rich in educational, social, and moral values. However, technological developments in the modern era have led children in Merangin Regency to abandon traditional games. They spend more time with gadgets, causing a decline in social interaction and awareness of local culture. Among various types of traditional games, congklak has become one of the least played. This situation encouraged designers to create an educational and engaging medium for children. As a solution, an Illustrated Book of the Traditional Game Congklak of Merangin Regency was designed as both a learning medium and an effort to preserve local culture. The illustrated book was chosen because it can convey messages visually and verbally in an appealing way, making it easier for readers to understand the story and the values contained within it. The design process used the 4D method (Define, Design, Develop, Disseminate) with 5W+1H analysis to meet design needs. In addition to the main book, supporting media such as posters, x-banners, t-shirts, tumblers, tote bags, bookmarks, and e-books were also developed. The design feasibility test obtained a score of 90%, categorized as very feasible, covering aspects of storyline, illustration, layout, and language. The content feasibility test achieved a score of 100%, also categorized as very feasible, including cultural, cognitive, social, and character education values. This book is declared highly feasible and effective as a learning medium as well as a means of preserving the local culture of Merangin Regency.

UMKM Tahu XYZ, a small-scale tofu producer, is currently facing significant challenges in maintaining consistent product quality, primarily due to a high defect rate. Common issues identified include crumbled tofu shapes, overly soft textures, and inconsistent taste, which negatively impact customer satisfaction and business sustainability. This study aims to investigate the root causes of these quality issues and propose practical solutions using the Lean Six Sigma methodology. The research employs a descriptive quantitative approach through the DMAIC framework—Define, Measure, Analyze, Improve, and Control—to ensure systematic problem-solving. Data were collected over a six-month period through direct observation, structured interviews, and review of production records. The analysis identified four dominant types of waste within the production process: unnecessary transportation, product defects, excessive movement, and over-processing. The root causes of these inefficiencies are linked to poor handling of raw materials, variability in soybean quality, and an ineffective production layout that hampers workflow and consistency. To address these problems, the study proposes several targeted interventions, including the redesign of the production layout to optimize flow, the implementation of the 5S (Sort, Set in order, Shine, Standardize, Sustain) workplace organization method, the development of standardized operating procedures (SOPs), and the adoption of improved soybean boiling technology. The implementation of these improvements is projected to significantly reduce product defects, enhance process efficiency, and ultimately increase customer satisfaction. Furthermore, these actions are expected to improve the overall competitiveness of UMKM Tahu XYZ within the highly demanding food industry sector. This research provides actionable insights for other micro, small, and medium enterprises (MSMEs) seeking to apply structured quality control methods to strengthen operational performance and long-term business resilience.

This study focuses on the development of an intelligent enemy behavior system in the 2D maze game Dungeon Escape by combining the A* algorithm for pathfinding and a Behavior Tree (BT) structure for decision-making. The main objective is to enhance Non-Playable Character (NPC) intelligence, enabling more adaptive and realistic interactions with players. The A* algorithm is implemented to allow NPCs to pursue players through the shortest and most efficient paths while avoiding obstacles on a grid-based map. Meanwhile, the Behavior Tree framework is designed to manage NPC actions based on dynamic conditions, such as attacking when in close proximity, chasing players within a certain detection radius, and retreating to the original guard position when the player leaves the active zone. The research methodology involves a comprehensive literature review, system design, and implementation using the Unity game engine. Testing procedures consist of both white-box and black-box approaches to evaluate the correctness, functionality, and efficiency of the system. The results indicate that all major game features—including player navigation, combat mechanics, key collection, enemy pathfinding, and user interface interactions—operate smoothly as expected. Furthermore, NPCs exhibit adaptive behavior by dynamically switching between patrolling, chasing, and attacking modes depending on the player’s location and proximity. Performance testing shows that the integrated A* and BT system runs efficiently without significant delays or instability, even in higher-level stages with more complex layouts. The final game prototype includes seven progressively challenging levels, offering players an engaging and dynamic gameplay experience. This study demonstrates that the combination of pathfinding and decision-making algorithms provides an effective solution for designing intelligent NPCs, improving both realism and entertainment value in 2D games. The findings are expected to serve as a useful reference for future research and development in AI-based game design, particularly in the context of Unity game projects.

This research is located at the Youth and Sports Office of Bogor City and is focused on knowing how the process of managing office space, identifying the obstacles faced, and exploring the solutions applied in the management. The method used in this research is descriptive qualitative with a case study approach to obtain a comprehensive picture of the condition of office layout. The subjects in this study were general employees who had direct involvement in the management and utilization of work space. Data collection techniques were conducted through observation, interviews, and documentation. The findings of this study indicate that spatial management has not been running optimally, as seen from the inefficient spatial arrangement, limited workspace capacity, and not maximizing the utilization of comfort support elements such as lighting, air ventilation, and aesthetic aspects of the room. The main obstacle found is the physical condition of the building which is an old building and is not fully in accordance with the current office spatial needs. Efforts made by the agency include a needs assessment in the budgeting process based on applicable public service needs standards, as well as maximizing the use of available space to support service efficiency and effectiveness. Therefore, the results of this study are expected to be a reference and consideration for agencies in developing their office space.

The reliability of a data center is highly dependent on its air conditioning and cooling system. This research evaluates the existing cooling system of Universitas Krisnadwipayana’s data center using the PPDIOO Network Life-Cycle approach. The study finds that the current cooling system, which relies on AC Split, fails to meet TIA-942 standards, posing significant overheating risks and increasing downtime probability. Observational analysis shows that the cooling distribution is inefficient due to inadequate airflow and the absence of a structured cooling layout. To address these issues, this research proposes an optimized cooling system design that incorporates Computer Room Air Conditioning (CRAC), hot aisle-cold aisle arrangement, and raised floor implementation. The recommended improvements also include installing temperature and humidity sensors for real-time environmental monitoring and implementing N+1 redundancy for enhanced system reliability. These solutions are expected to improve cooling efficiency, reduce energy consumption, and mitigate downtime risks. Future research should focus on evaluating the practical impact of this design by conducting real-world trials and exploring liquid cooling technology as a potential alternative for further efficiency improvements.

I Gusti Ngurah Rai International Airport – Bali is one of the airports with the busiest flight traffic in Indonesia, for both domestic and international routes. The high intensity of operational activities on the airside demands optimal management of all supporting elements, one of which is Ground Support Equipment (GSE). GSE plays a vital role in supporting aircraft movements and handling baggage, cargo, and passengers. Therefore, the provision of well-organized Equipment Parking Area (EPA) facilities in the Make Up and Break Down areas is crucial to ensure smooth and safe operations on the apron. This paper aims to examine the effectiveness of EPA provision and management in supporting GSE work efficiency, while identifying challenges and providing solutions to various emerging problems. The method used is a descriptive qualitative approach through direct observation, field documentation, and analysis of the actual layout compared to the provisions of the Directorate General of Civil Aviation Regulation No. PR 21 of 2023 concerning Technical and Operational Standards for Civil Aviation Safety Regulations. This research also complements EPA management practices at other airports in Indonesia, to provide a constructive comparative perspective. The study results indicate that the current management of the EPA at I Gusti Ngurah Rai Airport is not optimal. The main problems identified include irregular parking of GSE vehicles, the absence of zoning based on vehicle type, minimal markings, and a weak monitoring system due to limited personnel. As a result, congestion often occurs on GSE operational routes, which can disrupt the smooth operation of ground handling services. Based on these findings, proposed improvements include redesigning the EPA layout based on vehicle classification, installing signs and vehicle flow maps in strategic areas, and implementing an integrated technology-based monitoring system such as CCTV and digital access control.

Human Resource Management (HRM) is a very important part of an organization. In the digital era, HRM can be done more efficiently through mobile applications that allow access to employee data, HRM processes, or online attendance. However, the ability of an HRM mobile application to succeed depends on the usability factor or ease of use by users.  Talenta is one of Mekari's business platforms that provides a complete solution for all Human Resources (HR) and payroll management issues. Talenta is an application that will be used for Usability Testing using Cognitive Walkthrough. The initial stage in starting Usability Testing on the mobile-based Talenta application with the Cognitive Walkthrough method begins with conducting a literature study, learning the system or application, then making scenario questions based on the system. Then, respondents will be asked to complete the scenario questions. The scenario data collected includes; data on success in completing the scenario, data on errors in completing the scenario, and data on the time required to complete the scenario. Finally, the interview stage will be continued with the respondents on the scenarios that have been carried out. The scenario and interview data will be analyzed to calculate the effectiveness and efficiency aspects of the Talenta application. After the analysis stage, users will be given a System Usability Scale (SUS) questionnaire to be answered using Google Form using a Likert scale. The results of the questionnaire will be analyzed using SUS calculations, and then suggestions and conclusions will be given in the aspect of user learning ability. After usability testing of Talenta mobile application using Cognitive Walkthrough and SUS methods, the following results were obtained: 78% effectiveness; 0.10 seconds efficiency; and 67 learning ability level. Talenta has met the usability criteria for mobile applications in general, including effectiveness and efficiency in using the ISO 9241-11 model. However, there are still shortcomings in the user learnability level. To improve the usability of this application, it is recommended to change the layout, menu, add features, as well as clarify some display features.

Abstract. Traditional Javanese architecture, especially joglo houses, reflect the harmonious relationship between humans, nature, and God through designs that are loaded with symbolism and philosophy. The joglo house not only serves as a place to live, but also as a space for religious and social rituals, reflecting the spiritual values and belief system of the Javanese people. In this article, we discuss the elements of joglo house design, such as soko guru, towering roofs, and spatial layouts that depict social and spiritual hierarchies. This study uses a qualitative approach based on literature studies to analyze how traditional Javanese architectural design reflects the cultural values and spirituality of its people. The results of the study show that the preservation of joglo houses as a cultural heritage is very important, but it faces great challenges due to modernization and urbanization. Preservation efforts through cultural education, culture-based tourism, and cross-sectoral cooperation are relevant solutions to maintain the continuity of this traditional architecture.

Packaged Drinking Water (PDW) has now become one of the most practical products dominating the market, offering a variety of advantages and benefits. The fierce competition among PDW producers drives consumers to be increasingly discerning and selective in making purchasing decisions. Consumer choices are often influenced by pressing needs, which have recently shifted toward a preference for more natural food and beverage products. However, amidst the fast-paced modern lifestyle, instant products remain a favored solution due to the convenience they offer. By leveraging store atmosphere strategies, this business has successfully stayed competitive and maintained its presence in the market. The relationship between store atmosphere and consumer purchase interest is significant, as first impressions often serve as a critical factor in consumer evaluations of a store. Elements such as exterior design, overall interior, store layout, and interior displays play a vital role in creating that appeal. This study aims to analyze the extent to which store atmosphere influences purchase interest in the Club brand bottled water. The research methodology involves distributing questionnaires to 100 respondents as the primary data source.

This study aims to identify the influence of work facilities, workspace layout, and team building on employee performance. Using descriptive quantitative research methods, this study involved employees from two companies: PT Borobudur, Prambanan, and Ratu Boko Temple Tourism Park and PT Naisha Inspirasi Muslimah Yogyakarta. The sample consisted of 80 people, with 40 employees from each company. Data were collected through questionnaires distributed in the form of a paper survey. Analyses were conducted using Statistical Product and Service Solutions (SPSS) version 23.0 to test validity, reliability, multicollinearity, basic assumptions, and multiple linear regression. The research findings show that (1) work facilities have a positive and significant effect on employee performance, (2) work layout has a negative and insignificant effect, (3) team building has a positive and significant effect, and (4) the three variables simultaneously have a significant effect on employee performance.