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In the digital era, the internet has become a primary necessity for people in both urban and rural areas, driving the development of wireless networks such as Wireless Mesh Networks (WMN) that connect nodes in a multi-hop, self-organizing manner. WMNs offer advantages including flexibility, resilience, automatic configuration, self-healing capabilities, and cost efficiency, making them suitable for various sectors, including industry, residential areas, offices, and education. This research employs a qualitative approach through literature review on wireless networks and Mesh topology. Descriptive analysis is conducted to evaluate the strengths, weaknesses, and operational mechanisms of Mesh topology. The findings indicate that implementing Mesh topology in wireless networks provides reliable, flexible, and fault-tolerant connectivity, as each node can function as both a router and a data transmitter/receiver. Although installation is complex and requires numerous cables or ports, Mesh topology remains an effective solution to the limitations of conventional wired and wireless networks. Its advantages in redundancy, security, and scalability make Mesh topology a viable primary choice for the development of modern networks.

This study aims to analyze the profitability and operational efficiency of Sube Huter credit union. Profitability is measured by the Net Profit Margin (NPM) ratio, while operational efficiency is measured using the Operating Cost to Operating Income ratio and several other indicators related to operational costs. The data utilized in this research consist of secondary data from Sube Huter's credit union financial reports for the period 2020 to 2024. The analysis was conducted employing the financial ratio method to assess the cooperative's profitability and operational efficiency. The results indicate that the cooperative's profitability falls into the unhealthy category with a consistent NPM of 2%, while operational efficiency is categorized as less healthy with a Operating Costs to Operating Income value approaching 97-98%. The primary cause of low efficiency is high operational costs, particularly employee salary expenses that are not commensurate with revenue. However, the indicator of operating costs to total receivables still demonstrates healthy performance. This study recommends the implementation of more effective cost management, financial product development, and increased transaction volume to enhance the cooperative's profitability and operational efficiency.

The need for environmentally friendly marine transportation continues to increase, especially in tourist areas such as Penyengat Island, Tanjungpinang, Riau Islands. In the local context, the design of electric boats has not been widely developed for small islands in Indonesia, even though the potential and urgency for its application is very high. Geographical constraints, limited charging infrastructure, and a lack of technical data are the main obstacles. This research focuses on the design and construction of an electric-powered tourist boat prototype with an asymmetrical catamaran hull type as an effort to support a sustainable transportation system. The boat design applies an asymmetrical catamaran hull configuration to improve sailing stability and energy efficiency. The propulsion system is controlled via a wireless PS2 joystick integrated with an ESP32 microcontroller, supported by a 24V DC motor powered by lithium-ion batteries and solar panels as a supplement. Test results show that the boat can operate stably with remote control, good energy efficiency, and zero emissions during operation. Some technical challenges encountered include limited operational duration due to battery capacity and high sensitivity of electronic components to water exposure. Overall, this prototype has great potential for further development as an environmentally friendly alternative for maritime transportation system. The stable catamaran hull design provides advantages in terms of comfort and safety, especially in calm or shallow waters. The electric propulsion system used has proven to be efficient and responsive, supported by a remote control mechanism that is easy to operate via a wireless joystick

Profit growth serves as a primary benchmark for evaluating financial standing, particularly within the healthcare industry which demands elevated levels of efficiency and superior financial stewardship. As healthcare companies face increasingly competitive environments and high operational costs, the ability to generate sustainable profits becomes a critical determinant of long-term viability. This study aims to examine the impact of Return on Equity (ROE) and Total Asset Turnover (TATO) on the profit growth of healthcare companies registered on the Indonesia Stock Exchange (IDX) during the 2019–2023 period. The research employed a quantitative approach using secondary data, with a sample of 10 companies selected through purposive sampling. Data analysis was conducted using multiple linear regression, supported by classical assumption testing, t-tests, F-tests, and the coefficient of determination (R²). The results revealed that ROE had a positive and partially significant effect on profit growth, while TATO showed a positive but not significant influence. However, when tested simultaneously, both variables demonstrated a significant relationship, with the model explaining 23.9% of the variance in profit growth. These findings suggest that profitability ratios, particularly ROE, play a more decisive role in determining financial performance in healthcare companies compared to activity ratios. The study highlights the importance for healthcare firms to optimize equity utilization in order to enhance sustainable profit growth and shareholder value.

The increasing demand for clean water at the Faculty of Engineering, Sultan Agung Islamic University (UNISSULA) Semarang requires an alternative and sustainable water source. One effective solution is the implementation of a rainwater harvesting (RWH) system to meet non-domestic water needs such as toilet flushing, plant irrigation, and campus cleaning. This study aims to analyze the potential utilization of rainwater, design an appropriate RWH system, and evaluate its cost efficiency compared to the use of PDAM (regional water supply company) water. This research employed a quantitative approach by collecting primary data, including roof catchment area measurements and existing rainwater drainage conditions, as well as secondary data such as average rainfall, the number of campus users, and PDAM water tariffs. The analysis consisted of calculating the potential harvested rainwater volume, designing the RWH system, estimating installation costs, and comparing operational costs between RWH and PDAM water usage. The results indicate that the potential harvested rainwater volume from the building’s roof is approximately 7,054.5 liters/day, while the average non-domestic water demand is 3,170 liters/day, allowing water needs to be met during the rainy season. The implementation of the RWH system can also reduce water costs by up to 43,6%, equivalent to IDR 87.615.616 over a 20-year period. Therefore, the application of RWH is an effective and sustainable solution for water management within the campus while supporting operational cost efficiency.

The rapid development of information technology in the digital era has transformed the way organizations conduct their business activities. Information systems are now viewed not merely as operational support tools but as strategic elements capable of providing added value, increasing efficiency, and strengthening a company's competitiveness. In the context of PT XYZ, a company engaged in inspection and certification services, the use of information technology has become a crucial part of daily work processes. However, the implementation of information systems at the branch level still faces several obstacles. Data and process integration is not yet fully optimized, while alignment between the systems used and business needs has also not been achieved. This condition has the potential to hinder the company from providing fast, accurate, and innovative services. Therefore, appropriate and sustainable strategic planning of information systems is necessary. This study uses the Ward and Peppard framework enriched with Value Chain analysis to identify value-added activities, SWOT to identify strengths, weaknesses, opportunities, and threats, and PEST to map external factors affecting the business. In addition, the McFarlan Strategic Grid is used to prioritize the application portfolio that aligns with the company's long-term goals. The results of this research are expected to be able to produce an information system strategy design that not only supports operational efficiency, but also encourages service innovation and increases the competitiveness of PT XYZ in the inspection and certification services industry.

This study aimed to determine and analyze the influence of financial ratios on profit changes in telecommunications companies listed on the Indonesia Stock Exchange (IDX) during the 2019–2023 period. The financial ratios used in this study encompass four main groups: liquidity ratios, solvency ratios, activity ratios, and profitability ratios. This study employed a quantitative approach with an associative nature because it attempted to examine the relationship and influence between these financial variables on profit changes. The population in this study comprised all telecommunications companies listed on the IDX, while the sample selection was conducted using a purposive sampling technique with specific criteria, resulting in 15 eligible companies. The research data were then analyzed using panel data regression using EViews 12 software, with the best model selected being the Random Effect Model (REM). The results showed that simultaneously, liquidity, solvency, activity, and profitability ratios significantly influenced profit changes, thus concluding that the company's overall financial performance plays a significant role in determining the dynamics of profit generated. However, partial test results showed that the influence of each ratio was different. The solvency ratio has a significant negative effect on profit changes, indicating that the higher a company's debt level, the greater the risk of profit decline. Conversely, the profitability ratio has a significant positive effect, confirming that a company's ability to generate net profit is a major factor in increasing profit changes. Meanwhile, the liquidity ratio and activity ratio were not shown to have a significant effect on profit changes, indicating that short-term liquidity and operational efficiency are not sufficient to be the primary determinants in driving profit changes in the telecommunications sector.  

Amphibian Cessna 172 SP is an aircraft designed to operate in aquatic environments and is frequently exposed to seawater, which is highly corrosive. Such exposure poses a serious issue of corrosion affecting both the structure and components of the aircraft, particularly the floats, lower fuselage, and propeller. Corrosion not only reduces the quality and integrity of the material but also potentially compromises flight safety and increases maintenance costs. This study aims to analyze the causes of corrosion on the Seaplane Amphibian Cessna 172 SP using the fishbone diagram to identify the main contributing factors, including material, method, environment, manpower, and machine. In addition, the 5W+1H approach is employed to examine the problem in greater detail and develop preventive strategies. The results of the analysis indicate that the dominant factors causing corrosion are the high intensity of direct contact with seawater, suboptimal cleaning processes due to limited manpower, and the use of cleaning agents not fully compatible with aircraft materials. Mitigation efforts include implementing more effective cleaning procedures, applying anti-corrosion chemicals such as AeroShell Fluid 41, Bonderite Turco S.S.2, Ardrox AV-15, CorrosionX, Toolmates Dry Film Lubricant 6075, and Ultra Tef-Gel, as well as conducting scheduled inspections at specific intervals. This research is expected to provide more appropriate preventive strategies to extend the service life of the aircraft structure while maintaining both operational safety and efficiency.

Preventing accidents during drilling and well service operations is a constant and primary concern for every company or contractor operating in the upstream business. Accident analyses often identify a number of causative factors and/or anomalies, where equipment-related items play a significant role. This article concentrates on the rig inspection process as a consistent method for detecting equipment-related anomalies before operations commence. These inspections allow necessary repairs to be made in a timely manner, thereby limiting the occurrence of accidents after the rig becomes operational. When thorough and systematic rig inspections are performed, the percentage of accidents where equipment failure is the primary cause remains very low. However, the factor of equipment condition contributing to accidents still persists in a significant number of cases. Drilling rig mast inspection is a crucial component in maintaining the safety and efficiency of drilling operations. This inspection process aims to detect structural anomalies and equipment conditions that could affect rig performance. In this study, we analyze the inspection methods applied to rig masts, including visual inspection, non-destructive testing, and condition monitoring. The results of these inspections are expected to identify potential risks and enable necessary repairs before operations begin. Through the implementation of systematic and standardized inspection procedures, companies can reduce the likelihood of accidents and equipment failures, thereby enhancing workplace safety. This study also discusses the importance of training for inspection personnel to ensure they possess the necessary knowledge and skills to detect potential problems that may arise. Thus, drilling rig mast inspection contributes not only to safety but also to overall operational efficiency.

This study aims to analyze the implementation of the imprest method in petty cash management to enhance the effectiveness of daily operations at the micro, small, and medium enterprise (MSME) Es Iso Lego, located in Rungkut Madya, Surabaya. The research is motivated by common issues among MSMEs that still apply simple petty cash systems without fixed balances, leading to inaccurate records and weak financial control. This study employed a descriptive qualitative approach using a case study method. Data were collected through direct interviews with the business owner, observation of daily operational activities, and documentation of purchase receipts and digital financial records. The findings reveal that the petty cash system at Es Iso Lego has not fully applied the imprest method principles, as the cash balance remains fluctuating and is not maintained consistently. Although each expenditure is supported by receipts, the recording process lacks systematic structure. The results imply that applying the imprest method is essential to improve efficiency, accountability, and internal control in MSME financial management. A fixed-balance petty cash system with proper documentation enables business owners to better monitor daily expenses and ensure financial transparency.

The Regional Drinking Water Company (Perusahaan Daerah Air Minum/PDAM) Lae Nciho, Dairi Regency, faces significant challenges related to the low level of financial literacy and financial behavior of its human resources, which negatively affect financial performance, particularly the Return on Equity (ROE) indicator. A lack of understanding and discipline in internal financial management has led to waste and operational inefficiency. This phenomenon highlights the importance of improving financial literacy and financial behavior as a strategic effort to enhance the company’s efficiency and profitability. The purpose of this study is to examine and analyze the influence of human resources’ financial behavior and operational efficiency on financial performance, with financial literacy serving as a moderating variable. This research applies a quantitative descriptive approach, using data analysis with the SEM PLS 3.0 method. The study involved a total population and sample of 70 employees of the Regional Drinking Water Company (Perumda Air Minum) Lae Nciho in Dairi Regency, particularly those working in finance and operations divisions, selected through purposive sampling techniques. The findings reveal that, partially, the variables of human resources’ financial behavior and operational efficiency significantly influence financial performance and affect financial literacy. Moreover, financial literacy significantly influences financial performance. However, simultaneously, financial behavior and operational efficiency do not significantly affect financial performance when moderated by financial literacy.

This study aimed to analyze the enhancement of the competitiveness of the MSME Magewair Production through the optimization of financial statement preparation. As one of the key pillars of Indonesia’s economy, MSMEs often face challenges in financial management, particulary in preparing financial statements in accordance with accounting standards. The research employed a qualitative method with a case study approach, where data were collected through in-dept interviews with the management of Magewair Production and the analysis of existing financial statement documents. The results indicate that although Magewair Production has routinely carried out financial recording, the reports produced remain simple and have not complied with the Financial Accounting Standards for Micro, Small, and Medium Entities (SAK EMKM). The main constraints include a lack of accounting knowledge, limited technology, and insufficient training. Optimizing financial statement preparation can improve operational efficiency, access to funding, business growth, and the reputation and trust of stakeholders. This study recommends SAK EMKM training, the utilization of simple accounting technology, and guidance from government or academics to assist MSMEs such as Magewair Production in preparing better financial statements, thereby enhancing their competitiveness in the market.

The development of digital technology has driven a significant transformation in the company's marketing strategy, including in the health beverage sector. This study aims to examine the use of omnichannel strategies in supporting digital marketing in PT. Yakult Indonesia Persada. The method used is descriptive observation with a focus on the integration of digital marketing channels and traditional distribution. The results show that the implementation of an omnichannel strategy is able to create a consistent consumer experience, expand market reach, and strengthen brand image. The integration between digital channels such as social media and e-commerce with conventional distribution through Yakult Lady provides more flexible product access for consumers. In addition, educational and informative digital content has proven to be effective in increasing public health awareness and customer loyalty. However, challenges such as cross-channel information consistency and integrated technology management still need to be addressed. This study concludes that omnichannel strategy is a relevant and adaptive approach in dealing with the dynamics of the health beverage industry in the digital era. The implementation of this strategy not only supports operational efficiency, but also strengthens the relationship between the company and consumers through a personalized and sustainable experience. These findings are expected to serve as a reference for other companies in designing digital marketing strategies that are inclusive and responsive to changing consumer behavior.

The purpose of this study was to gain a better understanding of how the operational budget planning process is applied to the Mebel Serba Usaha (Mebel Serba Usaha) business, which falls into the micro, small, and medium-sized business category. A quantitative descriptive approach was used, collecting data through direct interviews and observing business activities. The obtained data was then examined to determine costs. Furthermore, sales records over the past four years were evaluated for their use. The analysis revealed that Mebel Serba Usaha has never created an operational budget. This situation makes it difficult for the company to manage its finances, which ultimately impacts performance and profitability. The study shows that an operational budget is a crucial tool for more targeted financial management. Operational budget planning helps companies develop long-term business plans and organize and monitor expenses. The results of this study also emphasize that the absence of a budget tends to make companies lack a clear reference point for determining sales targets and controlling production costs. With structured budget planning, companies can more easily identify spending priorities, estimate cash flow, and assess the efficiency of resource use. Furthermore, implementing an operational budget can improve managerial discipline because every financial decision is based on careful planning, not just on immediate needs. Another benefit is increased transparency in fund management, thereby minimizing the risk of waste or misallocation of costs. Therefore, this study provides a practical contribution in the form of recommendations on the importance of implementing an operational budget for micro, small, and medium enterprises, particularly in maintaining sustainability and increasing competitiveness amidst increasingly fierce business competition.This research is expected to be a reference for other MSMEs in developing a more effective and sustainable financial system.

This study aims to analyze the operational condition of the distribution transformer at substation PY094, PLN ULP Pringgabaya, with a primary focus on identifying and calculating the level of load imbalance on the consumer side. Data were collected through direct measurements of electrical parameters, including voltage and current in each phase, followed by a detailed analysis of energy losses. The measurement results indicated a significant load imbalance. In Feeder B, the average phase currents were recorded at 103.8 A for phase R, 130.2 A for phase S, and 90.4 A for phase T. Meanwhile, in Feeder D, the average phase currents were 47.4 A for phase R, 18 A for phase S, and 20.4 A for phase T. This imbalance caused notable power losses in the distribution system, with an estimated daily energy loss of 28.94 kWh, assuming the system operates 12 hours per day. To address this issue, load balancing simulations were carried out using ETAP software. The simulation involved redistributing load values across each phase in the two main feeders. Feeder B was simulated at 46.82% of the transformer’s full capacity, while Feeder D was simulated at 12.38% of the total 160 kVA capacity. The simulation results demonstrated that redistributing the load significantly reduced the current imbalance, thereby minimizing power losses and improving the operational efficiency of the distribution substation. Therefore, load balancing strategies are essential for enhancing energy efficiency and ensuring the reliability of electricity supply in distribution networks.

Micro, Small, and Medium Enterprises (MSMEs) have a strategic role in the Indonesian economy, but often face challenges in effective financial management. often face challenges in effective financial management. This research This study aims to analyse the application of management accounting in increasing turnover, net profit, and cash management in Labang Iced Tea Pot MSMEs in Bangkalan Regency, East Java. Bangkalan Regency, East Java. The research method used is descriptive qualitative, with data obtained through interviews, observation, and documentation. documentation. The results showed that the application of management accounting helps Labang Iced Tea Poci in determining the optimal selling price, managing cash flow, and increasing the efficiency of operational costs. cash flow, and improve operational cost efficiency. By analysing the break-even point, budget management, and recording break-even analysis, budget management, and systematic financial recording, this MSME is able to increase net profit to Rp 254,000 per day on the able to increase net profit up to IDR 254,000 per day at certain pricing strategies. pricing strategy. In addition, structured cash management allows the business to maintain liquidity and avoid deficits. maintain liquidity and avoid operational deficits. This research concluded that management accounting plays an important role in improving financial performance and support the sustainability of MSME businesses. The implementation of management accounting not only improves the efficiency of financial management, but also serves as a foundation for better strategic decision-making. the foundation for better strategic decision-making.

Stock returns represent a crucial parameter that serves as a reference for investors in evaluating company performance. A decline in returns has occurred in several mining companies listed on the IDX, despite the sector’s vital role in the national economy. This study aims to examine the effect of Corporate Social Responsibility (CSR), Return on Assets (ROA), Return on Equity (ROE), Debt to Equity Ratio (DER), and Firm Size on the stock returns of mining companies listed on the IDX during the 2022–2024 period. The sample was determined using purposive sampling, resulting in 56 observational data after outliers were removed. To meet the assumptions of classical tests, several variables were transformed using natural logarithms, and data were analyzed using multiple linear regression. The results indicate that CSR, ROE, and Firm Size have no significant effect on stock returns, whereas ROA and DER show a significant positive effect. These findings suggest that investors tend to emphasize financial fundamentals, particularly profitability and capital structure, rather than non-financial aspects such as CSR activities. The implication for companies is the need to enhance operational efficiency and optimize financial structures to attract investors and improve returns. Future researchers are encouraged to incorporate external variables such as global commodity prices, market risk, and macroeconomic indicators, as well as expand the observation period and apply more diverse methodological approaches to provide a more comprehensive understanding of stock return dynamics in the mining sector.

Port logistics efficiency is determined not only by the adequacy of infrastructure and the advancement of technology but also by the motivation of the workforce and the overall quality of the work environment. This study investigates how these two factors influence employee performance in the Warehouse Division of PT Yusen Logistics Indonesia. The research employed qualitative methods, gathering data through semi-structured interviews, field observations, and document analysis, with participation from warehouse workers, supervisors, and safety officers. Through thematic analysis, the study found that employee recognition and active supervisory engagement were key contributors to workforce motivation. The work environment, characterized by equipment reliability, safety culture, and yard capacity, directly impacted employee productivity. When both motivation and work environment were favorable, employees exhibited greater procedural compliance, increased throughput, and improved safety practices. In contrast, inadequate motivation and unfavorable work conditions resulted in inefficiencies, downtime, and higher risk-taking behaviors. This study’s findings provide insights into three key areas: maritime economics by highlighting labor’s critical role in port operations, social management by establishing the link between environmental quality and workforce productivity, and vocational education by shaping the training of cadets and practitioners. It underscores that sustainable port operations require human-centered strategies, in addition to infrastructure development. For better performance, companies should prioritize motivating their workforce and improving the work environment to foster a more efficient and safer operational setting.

This study examines the dynamics of urban politics in the policy of the Palembang City Government regarding the management of disorganized electrical cables. The problem of irregularly hanging cables, mixed with telecommunication lines, and often dangling too low poses safety risks, reduces the city’s aesthetics, and reflects weak governance of urban infrastructure. This research employs a qualitative approach using a case study method. Data were collected through field observations, in-depth interviews with relevant stakeholders, and documentation. The research informants consisted of representatives from the Palembang City Government, PLN (the state electricity company), telecommunication providers, and affected communities. The findings indicate that cable management policy is a concrete effort by the government to create an orderly, safe, and modern urban spatial arrangement. The Palembang City Government seeks to reorganize the overhead cable networks while simultaneously planning the development of underground utility ducts as a long-term solution. However, the implementation of this policy faces several challenges, particularly conflicting interests among stakeholders: PLN emphasizes operational efficiency, telecommunication providers resist additional financial burdens, while the public demands quick action but shows limited participation. This study concludes that the issue of cable management is not merely technical but also represents an arena of urban political contestation among the state, the private sector, and society. Effective solutions require cross-sectoral coordination, strong regulatory frameworks, collaborative financing, and active community involvement. Through a comprehensive approach, cable management in Palembang City has the potential to enhance public safety, improve urban aesthetics, and strengthen government legitimacy in sustainable urban governance.

This qualitative study examines standard operating procedure (SOP) implementation for tugboat clearance operations at Jepara Port, analyzing service quality enhancement through comprehensive stakeholder engagement. Utilizing semi-structured interviews with 25 participants across five stakeholder categories, the research reveals significant operational improvements including a 35% reduction in clearance processing times and a 35.5% increase in stakeholder satisfaction scores. Findings demonstrate that standardized procedures enhance port operational efficiency while strengthening maritime vocational education integration. Beyond efficiency gains, the study highlights the role of SOPs in ensuring transparency, accountability, and consistency in port service delivery. Respondents emphasized that clear procedural guidelines reduce uncertainty, minimize conflicts between stakeholders, and establish a common framework for decision-making in dynamic operational contexts. Moreover, the integration of vocational education elements into procedural design strengthens workforce competencies, aligning training curricula with real-world port requirements and industry expectations. The study contributes both theoretically and practically by offering evidence-based frameworks that can be adopted by other Indonesian ports. It underscores the importance of combining procedural standardization with stakeholder collaboration to achieve sustainable improvements in maritime service quality. Overall, the findings establish replicable models for enhancing national port competitiveness and advancing maritime industry development through systematic procedural and operational innovation that ensures long-term sustainability and resilience.