Publication Search

The selection of building materials is vital for the development of high-quality infrastructure and residential projects. The two most commonly used building materials are red bricks and lightweight bricks. This study compares the productivity and cost of red brick and lightweight brick production and installation in construction projects. Data were obtained through direct observation, worker interviews, and Value Engineering analysis on the Shopee Semanggi Housing Project, which consists of 136 houses with a total estimated budget (RAB) of Rp10.93 billion. The results show that red brick installation productivity is 3.3 m²/day, while lightweight brick installation reaches 17.9 m²/day. The installation cost for red bricks is Rp1.52 billion for 12,786.78 m², compared to Rp1.62 billion for lightweight bricks for the same area. This study provides guidance for selecting building materials based on time and cost efficiency.

This study aims to analyze the tofu production process in the household industry in Jambu Lor Hamlet. This research was conducted using observation methods and in-depth interviews with household tofu entrepreneurs in the area. The main focus of this study is to describe the stages of tofu production, starting from the selection of raw materials, the manufacturing process, to the distribution stage of the finished product. In addition, this study also evaluated factors that affect the quality of tofu products, such as soybean selection, processing techniques, and the influence of the surrounding environment. The results showed that despite using simple equipment, the household industry in Jambu Lor Hamlet was able to produce tofu with good quality, with some innovations in the production process tailored to the needs of the local market. This study is expected to provide useful insights for the development of the household tofu industry in the region and strengthen the local economic sector.

The light steel roll forming machine is a tool used in the manufacturing industry to continuously shape steel sheets into specific profiles. Efficiency and accuracy in production heavily depend on the control system employed. This article discusses the implementation of an automatic control system in a light steel roll forming machine, focusing on the use of sensors, actuators, and a microcontroller-based control system. Additionally, the system is equipped with a digital printing machine to directly print product branding and light steel specifications. The research results indicate that the application of an automatic control system enhances product precision, improves production efficiency, and reduces the defect rate.

This study aims to describe and analyze: the effectiveness of the implementation of the Revenue and Expenditure Budget policy and the implications of the implementation of the Regional Budget and Expenditure policy in Lumajang Regency. The data analysis technique uses the technique developed by McNabb (2002), namely Grouping the data according to key constructs, Identifying bases for interpretation, Developing generalizations from the data, Testing Alternative interpretations and Forming and/or refining generalizable theory from case study. The results of the study show that regional financial policies in Lumajang Regency, especially the policy of increasing Regional Original Revenue (PAD), are inseparable from the Central Government's policies in the framework of financial relations between the Central and Regional Governments. Meanwhile, the Lumajang Regency Government's policies to increase Regional Original Revenue (PAD/Pendapatan Asli Daerah) include: Digitalization to increase the efficiency and transparency of financial management, Adjustment of regional taxes and levies, Re-collection of taxpayers, Cooperation with the private sector and NGOs in the management and collection of regional taxes and Improvement of regional tax management management. The model of the implementation of the Regional Original Revenue (PAD) policy implementation model in Lumajang Regency is Top Down. The Government of Lumajang Regency, East Java is committed to continuing to encourage an increase in Regional Original Revenue (PAD). The contribution of Lumajang Regency's PAD in 2024 compared to the APBD (Anggaran Pendapatan Belanja Daeerah) structure only reaches 16 percent, so that to meet the needs of the expenditure budget in the APBD budgeting structure, it still depends on transfer funds, To reduce dependence on transfer funds, the government is optimizing regional tax revenues, especially from the Rural and Urban Land and Building Tax (PBB-P2). The implication is that to increase regional tax and levy revenues, efforts are needed to increase production and business capacity in the regions. Increasing production capacity and business activities is an important factor to increase regional tax and levy revenues. In addition, it is also necessary to increase the capacity of regional tax administration as one of the requirements to increase tax capacity and effort in the regions (taxable capacity and tax effort).

This community service program aims to assist Deppa Tori’ business actors in optimizing production and financial management in order to improve the quality, capacity, and sustainability of their business. The methods used in this program include training, direct assistance, and implementation of more efficient production strategies and more systematic financial records. In addition, this program also prioritizes branding and marketing aspects that are in line with local tourism potential, so that Deppa Tori’ can be better known as a typical souvenir that supports the tourism industry in the Toraja area. The expected results of this activity are increased production efficiency, better product quality standards, and a more organized financial system for Deppa Tori’ business actors. Thus, MSMEs can develop more professionally and contribute to strengthening the local creative economy and tourism sectors.

This study aims to analyze the optimization of technology and digital marketing strategies in enhancing the competitiveness of Bakpia Wong Yogyakarta SMEs. Using a qualitative descriptive approach, the research explores the application of technology in production processes, such as modern machinery and production management systems, as well as digital marketing strategies through social media, e-commerce, and SEO. The findings reveal that technology utilization increases production efficiency by up to 30%, while digital marketing via online platforms boosts sales by 40%. However, challenges such as limited skilled human resources and digital infrastructure remain significant. This study recommends investing in human resource training, developing more integrated digital strategies, and product innovation to strengthen the competitiveness of SMEs in the digital era.

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.

Small and medium enterprises (SMEs) play a very important role in the economy, especially in developing countries like Indonesia. Developing countries such as Indonesia. This research aims to develop mentoring strategy for SMEs in the snack food sector, specifically “BROWSIST,” which faces challenges in digital marketing,operational efficiency, and implementation of sharia economic principles. Through qualitative descriptive approach, this research conducts mentoring with a focus on optimizing digital marketing, improving operational management, and integrating sharia principles in every aspect of the business. integration of sharia principles in every aspect of the business. The results of the mentoring showed a significant increase in turnover, number of customers, and operational efficiency after three months. efficiency after three months. In addition, stronger application of sharia principles in business transactions and finances principles in business transactions and finances strengthens BROWSIST's position in the halal market. halal market. This study suggests the importance of sustainability in brand development, increasing production capacity, and expanding market reach to support more sustainable business growth. market to support more sustainable business growth.

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.