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Tilapia (Oreochromis niloticus) production is very important to maintain food security and the Indonesian fisheries economy. Based on a literature study conducted from 2021 to 2024, this study aims to analyze the components that influence the productivity of tilapia cultivation. The method used is a literature study by reviewing various studies that discuss the technical, environmental, social, and economic aspects of tilapia cultivation. The results of the study indicate that government policies, fish density, feed, and water quality all affect the productivity of tilapia cultivation. In addition, there is evidence that advanced technologies such as biofloc systems and aquaculture transition systems (RAS) improve production efficiency and sustainability. This study provides suggestions for increasing productivity through optimal environmental management, use of appropriate technology, and policy support that supports farmers.

This study aims to analyze the musculoskeletal disorders (MSDs) risk of workers at PT Kanugrahan Techno Engineering involved in grinding activities using the REBA (Rapid Entire Body Assessment) method. The analysis results indicate that grinding activities 1 and 2 have a REBA score of 9, indicating a very high risk, while grinding activity 3 has the highest score of 10, indicating an extreme risk. Grinding activities 4 and 5 have a score of 7, indicating a moderate risk. To reduce these risks, ergonomic aids in the form of a table and chair were designed to support better posture. The production cost of one set of tools is Rp 710,966, with a total cost for 5 sets amounting to Rp 3,554,833.91. The implementation of ergonomic aids is expected to reduce MSDs risks, increase comfort and work efficiency, and improve worker productivity.

Cultivating tilapia (Oreochromis niloticus) is one of the activities that is widely carried out in Indonesia because this fish has increasing market demand. In intensive cultivation systems, the factor that plays an important role in increasing production yields is pond design. Good pond design can influence water quality, oxygen distribution, and fish comfort which is directly related to fish growth. This research aims to examine the effect of pond design on the growth rate of tilapia in intensive cultivation. Based on a literature review, optimal pond design can increase the efficiency of feed use, maintain good water quality, and create an environment that supports faster fish growth rates. Designs that include pond shape, depth, aeration system and waste management must be carefully considered so that tilapia cultivation can achieve maximum results.

Indonesia, as an archipelagic country with over 17,000 islands, faces significant challenges in providing electricity access, particularly to small and remote islands. One promising solution is Solar Power Plants (PLTS), both land-based and floating solar plants that utilize water surfaces, suitable for areas with limited land availability. This study evaluates the economic feasibility of floating solar plants and land-based solar plants using the Levelized Cost of Electricity (LCoE) approach. LCoE encompasses all costs of construction, operation, maintenance, and energy production over the plant's lifespan, serving as a key benchmark in selecting power generation technologies. The findings show that the LCoE for floating solar plants is Rp11,197.00/kWh, lower than land-based solar plants at Rp11,769.00/kWh, although both exceed the electricity purchase price in Kodingareng, South Sulawesi, at Rp2,460.00/kWh. This difference is influenced by higher construction costs for floating solar plants but offset by greater energy output and lower operation and maintenance costs. This research provides a basis for developing solar power systems in archipelagic regions, emphasizing efficiency and sustainable energy solutions.

This research uses a descriptive qualitative approach to understand the relationship between capital, production costs, and income of MSMEs based on the experience and perspective of an entrepreneur. The subjects of this research are the owners or managers of MSMEs engaged in various sectors, such as food, crafts, and trade. The data collection techniques in this research used interviews, observation, and documentation techniques. This research data analysis technique uses data reduction, data presentation and conclusion drawing. This research shows that capital management and production cost efficiency play an important role in determining the income of MSMEs, adequate capital support allows entrepreneurs to increase their production capacity and quality, while efficient production cost management ensures the sustainability of a business. External factors, such as accessing and utilizing technology, are also something that can drive the success of MSMEs.

This study aims to analyze the implementation of the accounting system at Mie Baso Akung, which is part of the Micro, Small, and Medium Enterprises (MSMEs) in Indonesia. The main focus of this report is to explain the accounting system in the cash sales, purchasing, inventory, and payroll and wages sections. In its work, the author uses qualitative methods through interview techniques and also observation. Based on the results of the study, it was found that most of the processes are still carried out manually by the owner who does not comply with the proper procedures. This indicates the need for the implementation of a more structured system to improve operational efficiency. In addition, this study also identified obstacles in inventory management, which is very important to maintain the availability of raw materials and production efficiency. Therefore, Mie Baso Akung needs to implement a more detailed accounting information system and better internal control in order to improve operational efficiency that can help Mie Baso Akung in managing its finances and operations more effectively.

The rapid development of multimedia technology has significantly advanced 3D animation techniques, enabling the production of high-quality visual content across industries such as film, gaming, architecture, and product visualization. Rendering, as the final stage of the 3D production pipeline, plays a crucial role in determining both visual realism and production efficiency. This study compares the performance of three rendering engines—Eevee, Cycles, and Radeon ProRender—by evaluating rendering speed, visual quality, and memory efficiency in Blender. The objective is to provide practical insights for designers and digital content creators in selecting the most suitable rendering engine based on project requirements. In this research, three identical 3D scenes were rendered using each of the three rendering engines under controlled experimental conditions. The comparison was conducted based on several parameters, including rendering time, output file size, shadow accuracy, lighting effects, and overall visual realism. Quantitative measurements were used to evaluate render speed and memory consumption, while qualitative analysis assessed differences in shadow detail, global illumination behavior, reflection accuracy, and material realism. The results indicate that Eevee outperforms the other engines in terms of rendering speed, making it highly suitable for real-time applications and projects requiring fast previews. Cycles produces the highest level of visual realism due to its physically based path-tracing algorithm, although it requires longer rendering time and higher computational resources. Meanwhile, Radeon ProRender demonstrates competitive performance, particularly in shadow quality and lighting effects, offering a balanced alternative between realism and efficiency. Based on the findings, Blender remains a flexible and effective platform. The choice of rendering engine should depend on whether speed, graphic quality, or memory optimization is prioritized.

PT X is a chemical manufacturing company specializing in the production of phosphoric acid and sulfuric acid. In addition to waste generated from production processes, PT X also produces domestic wastewater originating from supporting activities such as employee barracks, offices, and laundry facilities. This domestic wastewater contains parameters that can potentially pollute the environment, such as BOD, COD, TSS, ammonia, and Total Coliform, some of which exceed the quality standards set by the Minister of Environment Regulation No. 68 of 2016. This study aims to design an effective Domestic Wastewater Treatment Plant (DWTP) system to process the domestic wastewater of PT X. The proposed DWTP system consists of a collection tank, Anaerobic Baffled Reactor (ABR), Aerobic Biofilter, and disinfection unit. Each unit is designed to reduce pollutant parameters to meet quality standards. Based on the calculations, this system can handle a wastewater flow rate of 21.91 m³/day with high treatment efficiency for critical parameters. The study results indicate that the proposed DWTP design can reduce environmental pollution, improve wastewater treatment operational efficiency, and comply with applicable regulations. Implementing this system is highly recommended to ensure environmental sustainability and the continued operations of PT X.

This article discusses efforts to optimize the production process at the motorcycle carburetor company "Mantri Karbu" through the application of transformation methods. In the automotive industry, production efficiency is key to enhancing competitiveness and meeting the ever-growing market demand. This study identifies various challenges faced by Mantri Karbu, including long production times, resource waste, and inconsistent product quality. By implementing transformation methods, which include workflow analysis, waste reduction, and employee skill enhancement, the company can improve productivity and operational efficiency. The results of this implementation show a significant increase in production cycle time, a reduction in operational costs, and an improvement in customer satisfaction. This article aims to provide insights for other companies in similar industries to adopt effective strategies for optimizing their production processes.

This research optimises the production of quality charcoal briquettes using the Multi Factor Evaluation Process (MFEP) method to meet the need for sustainable alternative energy. The main raw material is coconut shells, which are cleaned, burned in iron drums, and sun-dried to produce quality charcoal. Quality evaluation was conducted on calorific value, moisture content, ash content, and compressive resistance. Findings showed significant improvement in the quality of briquetted charcoal after the application of MFEP, with higher calorific value, lower moisture and ash content, and better compressive resistance. This research supports energy efficiency, reduces emissions, and improves environmental sustainability and community welfare.

This research aims to design a new warehouse layout at Alfamart with a dedicated storage method to increase material storage capacity. The instrument cluster assembly process at Alfamart is very dependent on the smooth supply of materials. The increase in production capacity from 2,500 units/day to 3,000 units/day in 2021 causes a larger need for storage space. The main problem identified is the limitation of the material placement area in the old warehouse. In this study, an analysis was carried out on the types of goods placement policies and optimal facility layout. The research method used is a combination of literature study and data collection from the research site. The results of the analysis show that the new layout design can increase the storage capacity up to 30%, from 240 pallets to 312 pallets. The new layout not only improves the placement of goods, but also increases operational efficiency through wider lanes, clear zoning systems, and better lighting. Thus, this research makes a significant contribution to warehouse management at Alfamart, ensuring that all materials can be stored and accessed in accordance with the established standards.

Cv. Adikarya Teknik is one of the manufacturing companies engaged in the field of mechanical engineering that produces wire mesh and conveyor table top chains. Cv. Adikarya Teknik has 6 projects that did not meet the 2024 work targets, resulting in delays in the completion of Conveyor Table Top Chain products. The delays are quite significant, with the work for Aqua Mineral Water being delayed by 11 days and Pocari by 10 days. Production analysis using the CPM and PERT methods to identify priority issues of delay risks and improve operational efficiency. By using the CPM method, it was found that the critical path of the Conveyor Table Top Chain production project lies in activities A-B-C-E-F-G-H-I-J-K-L-M-N (all located on the critical path). There is slack in activity D (Incoming Material); if it is delayed, it will not affect the critical path activities. The results of the PERT method on the Conveyor Table Top Chain project show that the probability of the conveyor production project being completed faster than the usual time, which is within a duration of 127 days, is 84%.

The process of organic matter degradation is an integral part of the ecosystem cycle, which converts complex organic compounds into simpler forms through the activity of microorganisms. Microorganisms, such as bacteria, fungi, and actinomycetes, play an important role in the decomposition of organic matter, whether from household waste, crop residues, or organic industrial waste. This process involves various biochemical mechanisms, such as hydrolysis, fermentation, and oxidation, which are triggered by exocellular enzymes produced by microbes. Environmental factors, such as pH, temperature, humidity, and oxygen content, affect the efficiency of degradation by microorganisms. Several microorganisms, especially those that have the ability to decompose lignin, cellulose, and hemicellulose, have been widely applied in organic waste management technologies such as composting, bioremediation, and biogas production. Research on the role of microorganisms in organic matter degradation is not only important for understanding ecosystem dynamics, but also has the potential to support efforts to manage organic waste that are more environmentally friendly and sustainable. This abstract provides a review of the role, mechanisms, and factors that influence organic matter degradation by microorganisms, as well as their applications in environmental technology.  

Indonesia's dependence on oil and gas imports has become a significant challenge to the country's economic stability, with impacts on the trade deficit, global energy price fluctuations, and fiscal dependence. This study aims to evaluate the economic impact of efforts to reduce Indonesia's dependence on oil and gas imports, focusing on the implications for economic growth, trade balance, and national energy security. The methods used include secondary data analysis, macroeconomic modeling, and simulation of the impact of energy policies such as increasing domestic oil and gas production, energy diversification, and renewable energy development. The results show that reducing dependence on oil and gas imports has the potential to reduce pressure on the trade balance and foreign exchange reserves, and improve long-term energy security. However, the transition to domestic energy security requires large investments in the renewable energy sector, supporting infrastructure, and policies that support energy efficiency. This study suggests the need for an integrated policy strategy between the government, private sector, and society to achieve the goal of reducing oil and gas dependence and improving Indonesia's economic competitiveness.

Oil production from a reservoir will naturally decrease or even not be able to produce at all. This condition does not necessarily indicate that the oil reserves in the reservoir have run out. If we only rely on primary production methods (primary recovery), it is likely that there is still a lot of oil left in the reservoir, so advanced production methods are needed to be able to drain the oil that is still left in the reservoir. Advanced oil recovery technology or Enhanced Oil Recovery (EOR) continues to develop to overcome the challenges in increasing oil production from reservoirs that have entered the secondary or tertiary production stage. One method that has attracted attention is Miscible Gas Flooding (MGF), which involves injecting certain gases into the reservoir. This method allows the creation of perfect mixing conditions (miscible) between the injected gas and the oil in the reservoir, thereby increasing the efficiency of oil transfer and maximizing recovery results. This technology is a solution to maximize the potential of oil wells that have experienced decreased productivity. The main principle of Miscible Gas Flooding is to reduce the interfacial tension between oil and gas, and reduce the viscosity of the oil, so that the oil can flow more easily to the production well. Commonly used gases include carbon dioxide (CO₂), nitrogen (N₂), or light hydrocarbons such as methane and ethane. With the right pressure and temperature, these gases can mix homogeneously with oil, resulting in higher displacement efficiency compared to water or immiscible gas injection methods. These advantages make MGF one of the most effective approaches to increase oil well productivity in complex reservoirs. Although promising, the implementation of Miscible Gas Flooding requires careful planning and a comprehensive evaluation of reservoir conditions. Factors such as the minimum pressure to achieve miscibility, the type of gas used, and potential disturbances such as fingering or channeling must be carefully considered. In addition, operational costs and the infrastructure required are also aspects that need to be taken into account.

All companies hope for an effective and efficient production system, but an imperfect production system means that PT XYZ must improve its production activities. The company strives to produce good products followed by a high level of productivity. In this research, we investigate a case at PT XYZ which produces hot stamping foil in the rewind section. This research found that there was waste that occurred in set-up replacement activities in production. Because it requires a long processing time, we perfected the system by implementing the Single Minute Exchange of Dies (SMED) method, then the process optimized internal activities in the set-up process. The application of the SMED concept is carried out by changing internal activities into external activities with the addition of helpers. This research aims to provide a more effective and efficient set-up replacement process so that machine downtime can be reduced. The results of this research show a 52% reduction in set-up time obtained by adding a helper with a time before implementation of 58 minutes to 30 minutes. This research concludes that SMED is effective in reducing machine set-up time and increasing the efficiency of the production process with benefits after implementing the SMED method by adding a helper of Rp. 10,649,336. In this way, implementing the SMED method helps companies increase production set-up replacement times in the rewind section.  

This article is made to learn the definition, components, and calculation formula of the Market Entry Barriers Component Index and Function Index, where these two measuring instruments are very important in analyzing the market. The function of the Market Entry Barriers Component Index is to evaluate the level of difficulty that a company will face in entering a pre-existing market. The way to evaluate it is by looking at obstacles such as fixed costs, production capacity, regulation, and production. For the Function Index itself, it functions to see how much efficiency will occur and includes distribution, information flow, and market mobility. This article also aims to provide an example of how the calculation system for the two indexes works. Through this understanding, readers and companies can formulate more appropriate strategies in dealing with obstacles and taking advantage of opportunities in the market.

Digitization of cooperatives and the use of technology are strategic steps in increasing economic competitiveness in the Madura handwritten batik sector, especially in Central Pakandangan Village, Sumenep Regency. This program aims to empower handwritten batik artisans through technology integration and digital capacity building. Some of the main activities include Search Engine Optimization (SEO) training, digital financial management through Accountable Digital Financial Management, digital cash book preparation, as well as Social Media Officer training and social media management strategies. The participants were also trained to create creative content, carry out digital branding of batik through logo design and visual branding, as well as build digital partnerships and cooperation. In addition, technological innovations are introduced through the use of night blasting machines to support production efficiency. This approach is expected to be able to increase the visibility of Madura written batik products, expand the market, and strengthen the competitiveness of artisans in the digital era. With a combination of training and the application of technology, this program contributes to the transformation of the digital-based economy in the Madura batik sector.

People's mining activities in Gamey Village, Uwapa District, Nabire Regency, Central Papua Province are carried out to meet daily needs and improve the welfare of the local community. This mining activity is based on alluvial deposit conditions and is applied for mining sediments on the surface and using alcon machines. for high pressure water spray. This community mining activity is divided into several stages starting from preparation of mining land, processing and production processes as well as selling gold products for sale. This research aims to examine the gold processing used by small-scale miners in Uwapa District, Gamey Village, and its impact on the environment and public health. The main focus of this research is on the use of the sluice box method, which is the gold processing technique most commonly used by local communities. This method was chosen for its simplicity and low cost, although the gold recovery efficiency varies between 50-70%. Additionally, this research evaluates alternative technologies such as shake tables and centrifuges that can increase gold recovery efficiency and be more environmentally friendly. The research results show that the implementation of alternative technology requires training, procurement of adequate equipment and infrastructure as well as ongoing monitoring. By adopting better technology, it is hoped that gold mining activities in Gamey Village can run more productively and sustainably, improving community welfare without damaging the environment.

Korean wave perm is the latest trend in curling hair. The price of the tools used is in the range of Rp1,000,000 to Rp5,000,000. The purpose of this research is to replace the digital perm tool with a hair dryer so that production costs can be reduced. The methods used in this research are observation, documentation, interviews, literature, questionnaires and experimental methods. Based on the assessment by 5 expert validators about the feasibility technique of using a hair dryer as a tool in curling that the technique effectiveness indicator scored 21 said to be feasible, time efficiency score 23 said to be very feasible, the cost got 21 said to be feasible, and the final result got 24 said to be very feasible. In addition, a public test was conducted to see the results of the public's level of liking for the technique of using a hair dryer as a curling tool by distributing questionnaires to 60 respondents, the results of which were 100% agreed that hair dryers could replace digital perm tools as well as save pioneering salon expenses, in the final results of the technique 55% of respondents liked it, 26.7% of respondents quite liked it and 18.3% of respondents really liked it so that 98.3% of respondents agreed that hair dryers could replace digital perm. It can be concluded that the hair dryer is feasible to use as a substitute for digital perm tools in curling korean wave perm.