JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat)

JSN 45 Mentoring for Students Through Collaboration with Indonesian Veterans as a Nationalism Strengthening Means

Miskawi Miskawi — 2026-06-28

This activity aims to strengthen student nationalism through mentoring the Spirit, Spirit, and Struggle Values of 1945 (JSN 45). The activity was carried out by involving Indonesian Veterans as contextual learning resources. The activity was carried out using a participatory and educational approach through coordination with the Veterans Legion of the Republic of Indonesia (LVRI), delivering national material, sharing veteran experiences, discussions, reflections, and activity evaluations. The program targets students of the History Education Study Program, Pancasila and Citizenship Education, and Guidance and Counseling at Universitas PGRI Banyuwangi. The results of the activity showed that the involvement of veterans was able to increase students' understanding of nationalism, historical awareness, and the values of the nation's struggle. Students actively participated in the activity and were able to identify the application of JSN 45 values in academic and social life. Collaboration between university academics and LVRI is an effective strategy in strengthening national character through contextual and experience-based learning. Similar activities need to be developed continuously to support the formation of a young generation with character and a commitment to nationalism.

Empowerment of the Dahlia Farmers Group in the Introduction and Development of Lemongrass as a Mosquito Repellent for Dengue Fever Agents

Noviana Mery Obenu — 2026-06-05

Dengue Hemorrhagic Fever (DHF) is a disease caused by the dengue virus, transmitted through the bite of the Aedes aegypti mosquito. The high number of DHF cases is influenced by a weak immune system and high mosquito population density. People generally use synthetic insecticides to prevent mosquito bites, but long-term use, such as mosquito coils and lotions containing DEET, has the potential to cause side effects. Therefore, safer and more environmentally friendly alternatives are needed, such as botanical insecticides. Citronella (Cymbopogon nardus L.) is one plant that has the potential to be a mosquito repellent because it contains the compounds geraniol, citronellal, and citronellol. Although some members of the Dahlia farmer group have citronella plants in their yards, their use as a mosquito repellent has not been optimized. Community Service (PKM) activities are carried out through outreach and training on making bio-spray from citronella as a mosquito repellent for dengue prevention. This activity aims to educate the public, especially housewives who are members of the Dahlia farmer group, about the dangers of dengue fever, the risks of long-term use of chemical insecticides, and the development of plant-based bio-sprays as an alternative solution to reduce the number of dengue fever transmissions.

Improving Cattle Farmers Knowledge of Animal Weight Monitoring Using IoT

Wahyu Andi Saputra — 2026-06-09

The Mukti Mandiri Livestock Group is located in Karanggitung Village, Banyumas Regency. This group focuses on beef cattle farming. Currently, the group faces various obstacles, including the lack of ability to accurately calculate cattle weight. This causes the group to often rent scales or entrust their cattle to other cattle groups to determine their weight. Furthermore, the Mukti Mandiri Group often chooses to estimate the weight of cattle due to the high rental price of scales. This impacts the selling price of cattle to collectors, resulting in farmers only earning a small profit. Therefore, a weighing device is needed to assist the Mukti Mandiri Livestock Group. This community service activity was carried out in order to provide IoT (Internet of Things)-based weighing devices to facilitate the cattle weighing process. The activity consisted of 5 stages: socialization, technology implementation, training, mentoring and evaluation, and the sustainability of the community service program. The results of this community service showed that 51% of respondents answered strongly agree, 46% agreed, and 3% quite agreed, in terms of increasing the knowledge of livestock farmers regarding the community service activity and the use of IoT-based weighing devices. It is hoped that this community service activity can continue in the management aspect for RPH (Animal Slaughterhouse) and Juleha (Halal Slaughterhouse) so that it can encourage participation from other livestock breeders in the use of technology in the livestock sector.

Potential Noise Intensity from Heavy Equipment during the Construction Phase of the Campus in Surabaya

Afif Rasendriya Haryu — 2026-06-09

Educational facilities are one of the public service facilities in developing and improving the quality of human resources. Over time, educational facilities continue to experience improvements, one of which is the campus. Campus improvements are inseparable from the development process that will have an impact on the surrounding environment. One of the impacts is noise. Noise if not handled properly will disrupt activities and public health. This study aims to identify the heavy equipment used in the construction phase of the XYZ campus, estimate the noise levels generated and received by receptors and plan appropriate impact management for the local community. The study method is a qualitative descriptive analysis with the data used in the form of primary and secondary data. Data analysis is in the form of mathematical calculations and comparisons with noise quality standards. The heavy equipment used are trucks, excavators, dozers, and cranes. The results of the estimated noise level received by receptors in the mobilization-demobilization activities of heavy equipment & materials are 73.25 dB(A), land preparation is 73.85 dB(A), and building construction work is 75.85 dB(A). According to the Minister of State for the Environment Decree No. 48 of 1996, the noise intensity of the three construction activities slightly exceeds the residential quality standards. Management or mitigation measures have been planned, including limiting operating hours, installing fences at least 2 meters high, and regular heavy equipment maintenance. After management, the estimated noise levels received by the receptors for each activity are 55.55–58.15.

Implementation of Jolly Box and Inventory Classification Analysis for Inventory Loss Prevention at PT DSV Solutions Indonesia, Margomulyo Surabaya Site

Rizki Dwi Saputra — 2026-06-09

Effective storage system management is a crucial aspect in supporting smooth operational activities and maintaining accurate inventory data in the warehouse environment. At the warehouse of PT DSV Solutions Indonesia Site Margomulyo Surabaya, the goods picking process still faces several obstacles, including the use of conventional cardboard that does not support storage order, difficulties in differentiating products with similar characteristics in high-moving SKUs (Stock Keeping Units), and daily demand fluctuations that increase the potential for picking errors, stock discrepancies, and inventory loss. These problems have an impact on decreasing the Overall Warehouse Efficiency (OWE) value. This study aims to analyze the effect of implementing a Jolly Box system integrated with stock classification on increasing OWE and reducing the risk of inventory loss. The study results showed improvements in all OWE indicators, including availability through reduced operational downtime due to sudden reorganizations, performance through zoning of product lines based on movement levels, and quality through reduced risk of picking errors. Furthermore, the system implementation was able to reduce lean waste in the form of defects and unnecessary motion by up to 68% of the total factors causing inventory loss. To ensure the sustainability of the achieved results, regular monitoring of transaction data, routine cycle count implementation, and adjustment of container capacity are required according to the development of managed SKUs.

Evaluation Of Management And Monitoring Of Ambient Air Quality (TSP, PM10, PM2.5) At Bioethanol Industry

Galang Eigy Hermawan — 2026-06-19

The bioethanol industry, as one of the renewable energy sectors, has the potential to impact ambient air quality due to production activities, operational processes, and vehicle mobilization. This study aims to evaluate the management and monitoring of ambient air quality based on TSP (Total Suspended Particulate), PM₁₀ (Particulate Matter 10 mm), and PM₂.₅ parameters in the bioethanol industry. A quantitative approach with descriptive analysis was applied through ambient air measurements at four monitoring points, namely the process area, the eastern boundary area near residential settlements, the village residential area, and the access road area. The monitoring results for Semester I and Semester II of 2025 showed that all PM₁₀ and PM₂.₅ parameters were below the quality standards established in Government Regulation of the Republic of Indonesia Number 22 of 2021 Appendix VII. TSP concentrations also complied with the quality standards, although the highest values were found in the access road area and areas near residential settlements due to operational vehicle activities and road dust. In Semester II of 2025, particulate concentrations decreased at all monitoring points. These conditions indicate that environmental management efforts, such as the optimization of Green Open Space (RTH), maintenance of operational equipment, and periodic monitoring, have been sufficiently effective in maintaining ambient air quality around the bioethanol industry.

Biodiversity’s Impact on Greenhouse Gas Emission Reduction at PT Pabrik Kertas Tjiwi Kimia Tbk

Niken Kartika Nahdya Rokhimanillah — 2026-06-19

Increasing greenhouse gas (GHG) emissions from industrial activities have become a serious environmental concern, making carbon sequestration through vegetation an important mitigation strategy, particularly in industrial areas where green open spaces serve as natural carbon sinks. This applied study analyzed the influence of biodiversity on GHG emission reduction through vegetation carbon stock estimation across four strata, namely trees, poles, saplings, and undergrowth, in the Mill area (estimated 10 Ha) and Conservation area (3.52 Ha), using an allometric approach from literature converted into tCO₂e, with statistical analysis conducted using the Spearman correlation test and Kruskal-Wallis test due to non-normal data distribution and small sample size. The highest carbon sequestration was recorded in the tree strata at 147.996 tCO₂e (90.7% of total), while the lowest was recorded in the undergrowth strata at 2.190 tCO₂e in the Mill area, with total sequestration of 163.032 tCO₂e in the Mill area and 20,233 tCO₂e in the Conservation area. The results of this applied study concluded that vegetation effectiveness in reducing GHG emissions is more determined by biomass accumulation rather than species diversity, as evidenced by the dominance of a single species (trembesi) contributing significantly to carbon stocks. Greening strategies should prioritize planting high-biomass vegetation such as trembesi (Samanea saman), mahogany (Swietenia mahagoni), and acacia (Acacia mangium), and be integrated with other emission reduction efforts such as energy efficiency and carbon capture technology.

Waste Segregation Program Evaluation in Improving Domestic Waste Management Effectiveness at PT Pabrik Kertas Tjiwi Kimia Tbk

Tiara Salsabilla Prabasari — 2026-06-19

Domestic waste management in the industrial sector requires an effective system, one of which begins with waste sorting at source. This applied study aims to evaluate the compliance of the waste sorting program in the paper industry with existing regulations. The method used is descriptive qualitative through field observations, waste inventory data and literature studies, and refers to applicable regulations. The study results indicate that the waste generated consists of organic, inorganic, and residual waste that has been sorted and managed according to its characteristics. Waste utilization is carried out through processing in the RDF (Refuse Derived Fuel) boiler, maggot feed, and internal and external recycling. This program contributes to increasing management efficiency and reducing waste to the Final Processing Site. Optimization is still needed through increasing consistency of sorting and participation of all parties to support sustainable waste management.

Potential Study of Organic Waste Residue Utilization at Garda Pangan to Reduce Landfill Disposal Burden

Maryam Darlene Khoirunnisa R. — 2026-06-19

Organic waste, particularly food waste, remains a major contributor to urban waste generation, and most of it ends up in landfills, thereby increasing the environmental burden. At the Garda Pangan Waste Management Facility, not all organic waste can be converted into maggot feed, resulting in residues characterized by a hard texture, large size, and high fiber content. This study aims to assess the potential for utilizing organic waste residues as an alternative for further processing to minimize the disposal burden on landfills. The methods used in this study include direct observation and comparative analysis of several bioconversion methods, such as eco-enzymes, vermicomposting, box composting systems, and livestock feed utilization. The results of the study indicate that the average weekly organic waste residue ranges from 360.17 to 785.12 kg, with a 35% increase from February to March 2026. Through the study, the box composting system was considered the most optimal because it can handle various types of waste with a reduction efficiency of 65–75% and is more suitable for the limited resource conditions in the field. Thus, this advanced treatment method has the potential to reduce the amount of organic waste disposed of at landfills.

Web-Based Office Stationer Inventory Management Information System At BPJS Ketenagakerjaan Kudus

Seila Desy Maulia — 2026-06-19

The Kudus Branch of BPJS Ketenagakerjaan is a government agency tasked with administering the employment social security program. One crucial operational aspect is the management of office stationery (ATK) inventory to support administrative activities. The current system is still based on manual recording using notebooks and simple spreadsheets, resulting in recurring problems such as recording errors, stock data discrepancies, and slow reporting processes that hamper managerial decision-making. Previous research on web-based inventory information systems has been conducted in the context of manufacturing and financial institutions, but none has specifically accommodated the needs of a layered user hierarchy in an employment social security institution. This study develops a web-based ATK inventory management information system at BPJS Ketenagakerjaan Kudus to fill this gap. The development uses the Waterfall model with stages of needs analysis, design, implementation, testing, and maintenance. Data were collected through field observations, structured interviews, and documentation studies. The system was built using PHP (Laravel framework) and MySQL. Black box testing of eight functional modules—including login, inventory data management, incoming/outgoing transactions, real-time stock monitoring, and automated reporting—resulted in a 100% success rate with no critical errors found. The system supports a three-level access hierarchy (general users, operational staff, branch managers) that allows for inventory control according to each role. This study proves that a contextually designed web-based information system can significantly improve the efficiency and accuracy of inventory management in a government agency in the social security sector.

Revenue Recognition Case Study Based on Financial Accounting Standards Statements at PT. Prambanan Dwipaka

Sofia Azizatun Niza — 2026-06-05

The construction sector is characterized by complex, long-term contracts and uncertainty, making revenue recognition a critical aspect for the reliability of financial statements. Since the enactment of Statement of Financial Accounting Standards (PSAK) 72 in 2020 as an adoption of International Financial Reporting Standards (IFRS) 15, construction companies in Indonesia are required to align their accounting practices with the principles of control and performance obligations. This case study examines the implementation of PSAK 72 at PT. Prambanan Dwipaka using a qualitative approach through interviews, observations, and document analysis. The study results indicate that the company has attempted to systematically implement the five stages of PSAK 72, although it still faces obstacles in identifying performance obligations and allocating transaction prices due to contract changes and inter-departmental coordination. This case study enhances understanding of PSAK 72 implementation in the construction sector, particularly regarding the role of organizational factors in accounting decision-making. PT. Prambanan Dwipaka has demonstrated efforts to implement the standard, but still requires improvements in documentation and internal controls. Future case studies are recommended to involve more companies to provide a more comprehensive picture of PSAK 72 implementation in Indonesia.

Mangrove Syrup Making, Personal Selling, and Branding Training for Hani MSMEs in Langsa Lama Village

Uci Dwi Cahya — 2026-06-19

This activity aims to increase the production and marketing capacity of Hani MSMEs in Langsa Lama Village through training in making mangrove-based syrup which is integrated with personal selling and branding strategies. This is based on the potential of mangrove resources which are abundant but have not been utilized optimally, as well as the limitations of business actors in product processing and marketing. Activities were carried out using a descriptive qualitative approach with data collection techniques in the form of observation, interviews and documentation. The results of the activity showed an increase in participants' skills in processing mangroves into better quality syrup, marked by improvements in aspects of taste, color and product cleanliness. Apart from that, implementing a personal selling strategy has a positive impact on business actors' communication skills in offering products directly, thereby increasing self-confidence and sales opportunities. In the branding aspect, there have been significant changes to the appearance of the product through improved packaging design and more informative labeling, thus increasing the attractiveness and selling value of the product in the market. Overall, the integration of production training and marketing strategies has proven to be effective in improving the technical and managerial capabilities of MSME players. Therefore, this training model can be used as an alternative in efforts to empower MSMEs based on local potential to increase competitiveness and business sustainability.