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Community Service Supports Coffee Cultivation and Post-Harvest in Hutabaringin Village, Sorik Marapi District, Madina Siregar, Ameilia Zuliyanti; Tulus; Ayu, Putri Chandra; Fatimah
Buletin Pengabdian Multidisiplin Vol. 2 No. 1 (2024): Buletin Pengabdian Multidisiplin Mei 2024
Publisher : Piramida Akademi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62385/budimul.v2i1.63

Abstract

Hutabaringin Village Community, District. Sorik Merapi, Kab. Madina h sources of livelihood in the agricultural sector, namely: rice, vegetable crops, frui gelugor acid, and plantation crops, especially coffee. The problems identified ar limited capital, seeds, tools and agricultural machinery (alsintan) as well as farmer knowledge in managing coffee to obtain high productivity. Therefore, the Marsipatur Hutanabe Mono Year Service Team carries out outreach activities, training an provides donations in the form of coffee seeds and machinery in the form of mi drying houses and coffee roasting machines to support cultivation and post-harve to increase coffee productivity. This activity uses field survey methods, outreac training on controlling coffee plant pests, training on post-harvest processing coffee and focus group discussions (FGD). Next, the handover of coffee seeds, coffe drying house, coffee roasting machine and yellow trap was carried out. The activit went well and received a positive response from farmer groups in Hutabaringi Village, Puncak Sorik Marapi, Madina.
Urban Farming Deteksi Keberadaan Serangga Rayap, Budikember dan Hidroponik di Kota Medan- Sumut, Indonesia dan Penang, Malaysia: Urban Farming Detecting the Presence of Termites, Cultivation and Hydroponics in Medan City - North Sumatra, Indonesia and Penang, Malaysia Siregar, Ameilia Zuliyanti; Tulus; Zulkifli Nasution; Nismah Panjaitan
Jurnal Kolaboratif Sains Vol. 7 No. 11: November 2024
Publisher : Universitas Muhammadiyah Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56338/jks.v7i11.5692

Abstract

Urban farming merupakan salah satu solusi meningkatkan ketahanan pangan di daerah perkotaan. Dengan metode hidroponik, masyarakat dapat memanfaatkan ruang terbatas untuk menanam sayuran dengan hasil panen yang cepat dan efisien. Selain itu, penggunaan serangga berguna, seperti lebah dan serangga pengendali hama alami dapat membantu penyerbukan dan mengurangi penggunaan pestisida kimia. Kegiatan Pengabdian Masyarakat Internasional ini dilaksanakan oleh Tim Pengabdian Lembaga Pengabdian Kepada Masyarakat (LPPM) Universitas Sumatera Utara di Medan, Sumatera Utara dan Penang, Malaysia, pada bulan April 2024 hinga Agustus 2024. Pengabdian dilakukan melalui observasi dan eksperimental. Urban farming menggunakan hidroponik merupakan solusi efektif dengan konsep lahan hijau, ketahanan pangan terpenuhi dan bernilai ekonomis
Peternakan Eduwisata Kambing-Domba Pentahelix dalam Mendukung Ketahanan Protein di Sumatera Utara Yunilas, Yunilas; Siregar, Ameilia Zuliyanti; Tulus; Rahmadini, Salsabila; Nasution, Muheri Indra Aja
PASAI : Jurnal Pengabdian kepada Masyarakat Vol. 2 No. 2 (2023): December
Publisher : Yayasan Pendidikan Mitra Mandiri Aceh(YPMMA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58477/pasai.v2i2.105

Abstract

Arjuna Farm is a goat-sheep farm that was established to increase family income with an educational concept that targets meeting the community's protein needs. Limited knowledge in the field of animal husbandry in the form of procurement of feed ingredients, ration formulation, and management, encouraged the team from the LPPM Annual Service, Universitas Sumatera Utara to provide assistance with solutions offered to farmers, including providing training, lectures, discussions, and demonstrations of waste-based feed processing. agriculture, and food processing industry, making complete silage feed, making MOL bio activator in fermentation and maintenance management. This activity is expected to increase the knowledge and skills of breeders. Apart from that, assistance was provided in the form of goat milking equipment and cage design. This activity is predicted to result in savings in animal feed costs because it can utilize alternative sources of feed ingredients, formulate and make concentrate feed independently, and complete fermentation methods.  
Copula-Based Blind Detection of Copy-Move Image Forgery: A Robust Mutual Information Approach Marpaung, Tulus Joseph; Tulus; Sofiyah, Fivi Rahmatus
Journal of Research in Mathematics Trends and Technology Vol. 7 No. 1 (2025): Journal of Research in Mathematics Trends and Technology (JoRMTT)
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jormtt.v7i1.20520

Abstract

Copula functions are powerful statistical tools for modeling the dependency structure between random variables and have been widely applied in domains such as finance, oceanography, and hydrology. However, their application in image processing, particularly for image forgery detection, remains underexplored. This study proposes a novel blind copy-move forgery detection algorithm based on copula-based mutual information, which evaluates statistical dependencies between overlapping image blocks. By leveraging copula theory, the method accurately identifies duplicated regions within a single image without requiring prior knowledge or external references. Experimental results on the CoMoFoD dataset demonstrate that the proposed method achieves high precision, recall, and F1-scores across various manipulation types, including translation, scaling, and rotation, and shows resilience to post-processing operations such as JPEG compression, blurring, noise, and color reduction. Comparative analysis reveals that the copula-based approach outperforms classical methods such as SIFT, SURF, and DWT-SVD. In addition to quantitative performance, qualitative visualizations confirm that the algorithm effectively localizes forged regions in complex scenes with minimal false detections. These findings highlight the potential of copula functions as a robust and efficient framework for digital image forensics.
Implementation of Hydroponics and Fish Cultivation in The Bucket (BUDIKEMBER) for Detecting Insect Biodiversity in Medan City, North Sumatra Siregar, Ameilia Zuliyanti; Tulus; Zulkifli Nasution; Nismah Panjaitan
ETHOS: Jurnal Penelitian dan Pengabdian kepada Masyarakat Vol. 13 No. 2 (2025): (Juni, 2025) Ethos: Jurnal Penelitian Dan Pengabdian Kepada Masyarakat (Sains
Publisher : UPT Publikasi Ilmiah UNISBA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29313/ethos.v13i2.4556

Abstract

The community service activity was carried out by the community service team under the International Cooperation Service Scheme of the Community Service Research Institute (LPPM) of the University of Sumatera Utara (USU) by inviting the Pujakesuma community, family welfare empowerment, and the community at Griya Nusa Tiga, aiming to introduce and implement hydroponic and fish cultivation in the bucket (Budikdamber) techniques to participants through lectures and practical training sessions. The community services were conducted from August to September 2024, involving 40 respondents from Griya Nusa Tiga Complex, Medan, North Sumatra. Research data was obtained through field observations, data collection, and interviews. The hydroponic systems applied to mustard greens and kale demonstrated advantages in terms of shorter harvest times and efficient yields; meanwhile, cultivating catfish in a bucket with the benefit of kale insects in the system improved plant quality and productivity, reduced pesticide use, and lowered production costs. The training also included hands-on practice, nutrient and water management, and result evaluation, allowing 40 participants to analyze challenges and solutions. Overall, the activity contributed to environmental sustainability, supporting community development through more efficient and eco-friendly practices with significant economic and ecological benefits.
Efficiency of Environmental Performance Measurement Using Data Envelopment Analysis (DEA) With Fuzzy Approach: English Nadhila, Nurul; Tulus; Mardiningsih
Journal of Research in Mathematics Trends and Technology Vol. 7 No. 2 (2025): Journal of Research in Mathematics Trends and Technology (JoRMTT)
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jormtt.v7i2.21717

Abstract

This study aims to analyze and measure environmental performance efficiency in residential areas in Medan City using the Data Envelopment Analysis (DEA) method combined with a fuzzy approach. Environmental performance is measured based on relevant inputs and outputs, where the data used are secondary data obtained from previous research reports. Fuzzification is applied to address uncertainty in the data by converting input and output values into Triangular Fuzzy Numbers (TFN). The results of the study show that out of the 4 Decision Making Units (DMUs) studied without using the fuzzy approach, only the Helvetia housing complex achieved 100% efficiency. Meanwhile, the efficiency values for Tuntungan, Martubung, and Johor housing estates were 85.92%, 88.69%, and 94.87%, respectively. When the fuzzy approach was applied, the efficiency values of the Johor and Helvetia housing estates reached 100% efficiency, while the Tuntungan and Martubung housing estates had an efficiency of 78.22%, indicating inefficiency. This inefficiency is caused by excessive use of drainage inputs, indicating that these housing complexes are unable to produce environmental outputs commensurate with the inputs used. This study recommends improving the quality and quantity of environmental management and cleanliness, as well as the availability and quality of green spaces, to enhance environmental efficiency in housing. The findings of this study provide important insights into the efficiency of environmental performance measurement and highlight opportunities for improvement in environmental management within housing.
Co-Authors Ameilia Zuliyanti Siregar Ayu, Putri Chandra Diana Chalil Eva Sartini Bayu Evada, Zakiah Farida Ariani Fatimah Fivi Rahmatus Sofiyah Hasanuddin Herawati, Elvina Hrp, Hafizah Miranda Putri M Tafsin Mardiningsih Marpaung, J.L. Marpaung, T.J. Marpaung, Tulus Joseph Herianto Muhammad Zarlis, Muhammad Nababan, Ester Sorta Mauli Nababan, Esther Sorta Mauli Nadhila, Nurul Nasution, Muheri Indra Aja Nismah Panjaitan Parapat Gultom Rahmadini, Salsabila Riantri Barus, Riantri Sawaluddin Sembiring, Pramio Garson Sofyan, Rudy Susilo, Hariadi Syahputra, M.R. Syahputra, Muhammad Romi Tugiman Yunilas Yunilas Zulkifli Nasution