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Community Service (KKN) in Perkebunan Maryke Village, Kutambaru District, Langkat Regency, was carried out by students of the Muhammadiyah University of North Sumatra from 12 to 27 August 2024. This program aims to improve the financial literacy of the community and optimize the potential of the broomstick MSME which is the main source of income for village residents. Through MSME mentoring activities, students conduct value chain analysis to improve production efficiency, product innovation, and more effective marketing strategies. This mentoring aims to increase the competitiveness of MSMEs and shorten distribution channels to a wider market. In addition, the financial literacy program in collaboration with Bank Sumut is also provided through workshops to teach the community, especially the younger generation, about the importance of saving, financial planning, and personal budget management. The results of this activity show an increase in community understanding of financial literacy and MSME management, as well as the creation of new innovations in broomstick products. This activity not only has an impact on increasing residents' income, but also strengthens social cohesion and sustainable village economic development. This program is expected to be a model for community empowerment in other rural areas.

PT XYZ, which aims to optimize the production process of Airbus A350 aircraft wing components. The background of this research focuses on the importance of efficiency and effectiveness in the aviation industry, where each component must be produced to high standards to ensure aircraft safety and performance. In order to achieve this goal, the author applies several methods for completing the task, including system modeling and Interpretive Structural Modeling (ISM). This method allows for in-depth analysis of the structure and relationships between elements in the production system. Data processing is carried out through four main stages: model concept design, data collection, analysis, and evaluation. The raw data used includes the company layout and wing component production flow. The results of this data processing provide significant insights into potential improvements in the existing production system, as well as recommendations for improving operational efficiency. Thus, this report not only contributes to the development of knowledge in the field of systems engineering, but also provides practical advice for PT XYZ to improve their production performance.

The development of digital technology and the need for energy efficiency are two important elements in advancing the village economy, especially through the Micro, Small and Medium Enterprises (MSME) sector. The digitalization of MSMEs opens up great opportunities for village business actors to expand markets, increase productivity and integrate technological innovation in their operations. Meanwhile, electricity efficiency not only has an impact on reducing production costs, but also contributes to environmental sustainability. This research aims to analyze the impact of digitalization and electricity efficiency on village economic progress through the development of MSMEs. This study examines how digitalization can increase market access and competitiveness of MSMEs in villages, as well as how implementing energy efficiency practices can reduce the burden of operational costs faced by business actors. Apart from that, this research also discusses the challenges faced by MSMEs in villages in adopting digital technology and energy efficiency practices, as well as solutions that can be implemented to overcome these challenges. The research results show that the integration of digitalization and electricity efficiency can make a significant contribution to improving the performance of MSMEs in the village, which in turn has a positive impact on improving the overall village economy. Successful implementation requires strong support from governments, technology providers and local communities to ensure the sustainability of these initiatives

The main focus of this research is to deeply analyze the existing production process, evaluate the technology and equipment used, and identify ways to improve raw material and energy management. Through the application of the latest technology, such as more efficient processing machines and more modern processing methods, it is expected to improve production efficiency, reduce operational costs, and ensure consistent product quality. The research method includes data collection from observations of the current production process, interviews with local producers, and analysis of the equipment and techniques used. In addition, this research also involves testing the implementation of innovations and evaluating their impact on the final product results and production costs. The expected results of this research include improved syrup quality, better operational efficiency, and reduced production costs, which overall can increase the competitiveness of Karangtengah syrup products in the market. The benefits of this research are not only limited to improving the quality and efficiency of production but also include positive economic impacts for the local community. By improving the production process and expanding market reach, it is expected to create new economic opportunities, improve the welfare of local communities, and provide a model for other food processing industries in the region. This research aims to make a significant contribution to the development of the local industry and encourage the adoption of more sustainable and innovative production practices.

Sukomulyo is a village located in Kaliwungu Selatan District, Kendal Regency, most of whose residents work as farmers. The rice fields in Sukomulyo village are irrigated using river water which is taken directly from the Waridin River with a diesel water pump. The process of irrigating the rice fields takes a long time, so the water pumps are simply left alone by the farmers because they are doing other activities. Often farmers forget to turn off the water pumps they turn on, resulting in wasteful use of river water and fuel. When the dry season arrives, there could be a decrease in the river water discharge to the ground which has the potential to result in farmers not being able to irrigate their rice fields with water. To overcome this problem, the Sukomulyo farmer group in collaboration with the PPL (Agricultural Extension Worker) of Kaliwungu Selatan District built a water pump house which is used for their rice field irrigation needs. With the construction of the water pump house, it is hoped that it can irrigate farmers' rice fields during the dry season and can increase agricultural production in Sukomulyo Village and can reduce farmers' worries when the river water does not flow

The need for efficient, economical, and environmentally friendly animal feed in Indonesia, especially for small and medium-scale farmers, requires innovative solutions. This community service program aims to optimize the production and marketing of maggot as an alternative animal feed through the empowerment of MSMEs at TPS3R Ngudi Lestari. A participatory approach was implemented through two main stages: maggot production training and a digital marketing workshop. The results showed a significant increase in both the production capacity and quality of maggot, as well as an improvement in digital marketing skills among MSMEs. The training enhanced participants' technical abilities in substrate management, production efficiency, and post-harvest processing, leading to higher and more consistent production outcomes. Meanwhile, the digital marketing workshop equipped MSMEs with strategies to expand market reach through online platforms, branding, and content creation. Despite challenges such as substrate variability and digital infrastructure limitations, innovative solutions like substrate diversification and improved environmental monitoring were successfully applied. This program not only boosted the local economy but also contributed to a more sustainable livestock sector by integrating circular economy principles. In conclusion, the program demonstrates the potential of combining maggot production with digital marketing strategies to create a sustainable business model for MSMEs, serving as a replicable example for community empowerment within the context of a circular economy and sustainable agriculture in Indonesia

This study examines the application of Quality Engineering methods to Micro, Small, and Medium Enterprises (MSMEs) through a community service program. Using a qualitative approach based on literature studies conducted via a webinar at Universitas Sehati Indonesia (USINDO), the research explores how systematic quality improvement strategies can be introduced and adapted for MSMEs to enhance product quality and competitiveness, this study analyzed scientific publications, community service reports, and quality improvement program documentation from 2019-2024. The findings demonstrate that Quality Engineering principles-including Quality Function Deployment (QFD), Seven Basic Tools of Quality, and Statistical Process Control (SPC)-significantly enhance product quality when adapted to SMEs' specific contexts. Case studies reveal improvements ranging from 29.5% to 97.92% across various aspects including customer satisfaction, food safety, and production efficiency. The research identifies key challenges in implementation, including technical knowledge limitations, resource constraints, and difficulties in maintaining long-term changes. The successful integration of Quality Engineering methods depends on active participation from SME stakeholders, approaches tailored to local contexts, and continuous post-program mentoring. This study contributes to developing an integrative framework that combines Quality Engineering principles with practical SME needs, supporting sustainable quality culture development in the SME sector.

: Oyster mushrooms are one of the popular horticultural products in the community, with a significant increase in demand from year to year. However, farmers often face difficulties in identifying and preventing diseases that attack oyster mushroom plants, which have an impact on production stability. To overcome this problem, this study aims to design an expert system that can diagnose diseases in white oyster mushrooms using the Dempster Shafer Method. This system is designed to provide accurate diagnostic information and solutions to deal with diseases in oyster mushrooms, so as to improve the quality and quantity of production. This study also strengthens previous studies using the Certainty Factor method, with an emphasis on the use of expert knowledge to overcome disease problems in oyster mushroom cultivation. The case study was conducted at Omah Jamur Tiram Stabat, where the results of the implementation are expected to increase the effectiveness and efficiency of oyster mushroom cultivation in the area.

Tilapia (Oreochromis niloticus) is a freshwater fish that is in great demand by the public because it has a thick meat texture and an affordable price. The problems faced in aquaculture activities are the high cost of feed and the length of cultivation time. Feed is a vital component in aquaculture activities, therefore feed efficiency is needed to minimize production costs. The addition of fermented moringa leaf extract in pellets is expected to accelerate the growth period. This study aims to determine the effect of the addition of fermented moringa leaf extract on tilapia growth rate. This study used a complete randomized design (CRD) method with 4 treatments, namely the addition of moringa leaf extract to pellets with concentrations of 0%, 25%, 30%, 35%. The treatment was carried out for 28 days. Parameters observed in this study were fish growth including fish length, fish weight, survival rate (SR), food conversion rate (FCR) and water quality in the form of temperature, pH and DO. The data were analyzed using anova and SPSS application. The results showed that the addition of fermented moringa leaf extract with concentrations of 0%, 25%, 30% and 35% in tilapia (Oreochromis niloticus) feed for 28 days had a significant effect on tilapia growth.  

This research focuses on the design and development of a Software Requirements Specification (SRS) document for the Cost Accounting Information System at PT. ABC, a rubber manufacturing company in Indonesia. In an effort to enhance the company's efficiency and productivity, this SRS document is prepared based on the international standard ISO/IEC/IEEE 29148:2018, which covers essential aspects such as functional requirements, performance, usability, interfaces, and others. The large number of business processes carried out manually, especially in the scope of cost accounting, means that the absence of an integrated cost accounting information system is one of the main factors preventing PT. ABC from achieving optimal efficiency in its business processes. In the context of the manufacturing industry, cost accounting plays a crucial role in controlling production costs, overhead, raw materials, and indirect labor. The results of this research will produce several modules, including factory overhead cost transactions, raw material cost transactions, direct labor cost transactions, manufacturing goods transactions, finished goods transactions, purchase return transactions, sales transactions, component purchase transactions, component mastering, position mastering, user mastering, cost mastering, supplier mastering, employee mastering, raw material cost reports, factory overhead cost reports, direct labor cost reports, cost of goods sold reports, cost variance reports, budget cost reports, and profit and loss reports.

The study "European Union Energy Policy After Russia's Attack on Ukraine in February 2022" analyzes the EU's energy policies in response to the energy crisis caused by the attack, which disrupted the EU's heavily Russian-dependent energy supply. Using a qualitative method with a descriptive analytical approach, the research identifies the EU's strategic steps to reduce energy dependence on Russia and transition to sustainable energy. The findings highlight the REPowerEU policy, under Regulation (EU) 2023/435, as the primary response, focusing on diversifying energy imports, increasing renewable energy production, promoting energy efficiency, and enhancing energy infrastructure. Key initiatives include renewable energy projects like solar power in Spain and Portugal, the North Sea Wind Power Hub, and the Celtic Interconnection project, as well as the Renovation Wave Initiative to improve building energy efficiency. These measures aim to address the immediate energy crisis and build a sustainable, resilient energy future for the EU. The study provides academic insights into EU energy policy and security, serving as a reference for those interested in energy policy and international energy security.

In the Riau Islands, especially on Ngenang Island, weaving activities have become part of the life of the Malay community. This initiative to develop and produce woven fabric aims to preserve culture as well as empower women and improve the local economy. This research aims to determine the role of the Batam City Department of Industry and Trade (Disperindag) in empowering the community through groups of woven cloth craftsmen on Ngenang Island. This research uses a qualitative descriptive research method. The data sources for this research come from primary and secondary data. Research results based on (1) support the development of small and medium industries (IKM), including the weaving industry. (2) empowerment efforts carried out through guidance and technical support, which helps in developing technical skills and innovation in woven motifs (3) the government responds quickly to the needs of craftsmen by providing funds, looms and raw materials, increasing production efficiency and quality of woven fabrics resulting from. In conclusion, the role of the government on Ngenang Island is not only as a regulator, but also as a dynamist and facilitator in strengthening the weaving industry as part of an inclusive and sustainable local economic development strategy.

Optimization of community empowerment through mushroom cultivation has a major problem, namely the lack of implementation of digital marketing strategies in oyster mushroom cultivation to increase market access, sales efficiency, and production capacity. With the implementation of digital marketing strategies, the Sukahurip II Farmer Group can promote their products more widely, effectively, reach a larger market and increase sales. The methods used include training and assistance in the use of digital platforms such as social media, e-commerce, and online marketing applications. The results of this implementation show that with the support of digital marketing, the community is able to increase income, expand customer networks, and strengthen their position in the market. This study provides practical guidance for the implementation of digital marketing strategies in oyster mushroom cultivation businesses, as well as providing recommendations for the development of similar empowerment models in other sectors.

Optimization of community empowerment through mushroom cultivation has a major problem, namely the lack of implementation of digital marketing strategies in oyster mushroom cultivation to increase market access, sales efficiency, and production capacity. With the implementation of digital marketing strategies, the Sukahurip II Farmer Group can promote their products more widely, effectively, reach a larger market and increase sales. The methods used include training and assistance in the use of digital platforms such as social media, e-commerce, and online marketing applications. The results of this implementation show that with the support of digital marketing, the community is able to increase income, expand customer networks, and strengthen their position in the market. This study provides practical guidance for the implementation of digital marketing strategies in oyster mushroom cultivation businesses, as well as providing recommendations for the development of similar empowerment models in other sectors.

This research was conducted because of the emergence of cases of environmental pollution due to excessive production activities and the lack of awareness of business actors towards environmental conservation. Since the emergence of COVID-19 in Indonesia, the demand for medicines and other consumer products has increased. Public demand for companies to continue to care about environmental sustainability to reduce the negative impact of company activities on the environment. One concept that can be applied by management to handle problems that occur between the environment and the company is the concept of eco-efficiency. The purpose of this study is to, first, test the effect of eco-efficiency on firm value, second, test the effect of eco-efficiency on firm value with profitability and leverage as moderating variables. The sample of this research is manufacturing companies in the consumer goods sector listed on the Indonesia Stock Exchange in 2020-2023 using purposive sampling method. This research analysis method uses simple regression analysis and moderating analysis regression (MRA). This study provides evidence that environmental management implemented by the company can significantly provide good company value, besides that the high level of profit earned by the company can moderate the relationship between eco-efficiency and company value with a positive effect but in this study leverage cannot moderate the eco-efficiency relationship.    

The production of tofu is vulnerable to deficiencies stemming from issues such as diminished worker attentiveness, subpar raw materials, and ambiguous operational protocols. Employing the seven traditional tools and additional new methods, this study scrutinized these shortcomings. The outcomes indicate that these variables exert a notable influence on product quality. These discoveries establish a foundation for pinpointing areas of enhancement to elevate the efficiency and quality of the tofu production process.

The rapid development of technology demands solutions to optimise heat management for electronic components. Through this study, the researchers evaluated the effectiveness of various types of coolants in a liquid cooling system for electrical equipment, especially CPUs. Using design simulations conducted through SolidWorks software, this research aims to optimise the flow rate and selection of coolant type to achieve maximum thermal efficiency and reduce production and operational costs. The simulation results show that water is the most efficient coolant with significant temperature reduction compared to Ethylene Glycol (EG), Propylene Glycol (PG), and silicone oil. Water shows a temperature drop of 11.76°C, while EG and PG show a temperature drop of 8.82°C and 7.35°C respectively and silicone oil shows a temperature drop of 4.9°C. It can be seen from the simulation that water shows the most effective temperature reduction compared to EG, PG, and Silicone Oil.      

The research issues include the performance of three-phase induction motors and the impact of load on three-phase induction motors. This study aims to develop a driving system for empty fruit bunches (EFB) processing machines using induction motors at PT. Suryabumi Agro Langgeng, South Sumatra. The research was conducted at PT. Suryabumi Agro Langgeng in South Sumatra, from May to June 2024. Primary data in this research were obtained through observation and interviews, while secondary data were gathered from document analysis. In the context of this research on three-phase induction motors, document analysis techniques can be used to analyze various documents such as scientific literature, technical specifications, maintenance reports, production records, or other documents related to induction motors. The research methods include system requirements analysis, system design and implementation of the driving system, and performance testing of the developed system. The results show that the use of induction motors can provide better operational efficiency in EFB processing. This research is expected to contribute positively to improving the efficiency and productivity of PT. Suryabumi Agro Langgeng's operations.

In the era of globalization and increasingly fierce economic competition, industrialization has become the main pillar in efforts to increase a country's competitiveness and economic growth. In Indonesia, strengthening industrialization does not only aim to increase production and exports, but must also be directed at sustainable investment that pays attention to environmental, social and governance (ESG) aspects. This research aims to analyze the strategies and policies needed to strengthen industrialization within the framework of sustainable investment in Indonesia. Through a qualitative approach with policy analysis and case studies of key industries, it was found that the integration of sustainability principles in industry can increase efficiency, reduce environmental impacts, and provide broader social benefits. In addition, government support through appropriate regulations, fiscal incentives, and increasing human resource capacity are key factors in realizing sustainable industrialization. It is hoped that the results of this research can be a reference for policy makers, industry players and investors in designing and implementing investments that support economic growth while maintaining environmental sustainability and social welfare.  

This research explores the electrolysis process of a mixture of copper(II) sulfate (CuSO4) and aluminum sulfate (Al2(SO4)3) solutions using carbon electrodes. The main objective is to understand the mechanism of gas formation and metal deposition efficiency. In the experiment, CuSO4 and Al2(SO4) solutions )3 with a concentration of 0.5 M each is used as the electrolyte, and carbon electrodes as the cathode and anode. During electrolysis, the electric current causes copper ions (Cu²⁺) to move to the cathode, undergo reduction to copper (Cu), and deposit on them. cathode. Aluminum ions (Al³⁺) tend to remain in solution due to the higher reduction potential. At the anode, hydroxide ions (OH⁻) from water are oxidized, producing oxygen gas (O₂). and oxygen gas at the anode. The efficiency of copper deposition was analyzed by measuring the mass of deposited copper. This research provides insight into the dynamics of electrolysis of CuSO4 and Al2(SO4)3 mixtures, as well as their potential in electrochemical applications. In conclusion, the use of carbon electrodes is effective for the deposition of pure copper and the production of oxygen gas as a by-product.