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All Journal Teknotan: Jurnal Industri Teknologi Pertanian TELKOMNIKA (Telecommunication Computing Electronics and Control) Al-Risalah : Jurnal Imu Syariah dan Hukum Journal of Innovation and Applied Technology Jurnal Keteknikan Pertanian Tropis dan Biosistem Jurnal Teknologi Pertanian agriTECH Indonesian Journal of Chemistry Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) QARDHUL HASAN: MEDIA PENGABDIAN KEPADA MASYARAKAT Jurnal Teknologi Pertanian Andalas Jurnal Restorative Justice Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Sainstek : Jurnal Sains dan Teknologi Jurnal Pembelajaran Pemberdayaan Masyarakat (JP2M) GEMA : Jurnal Gentiaras Manajemen dan Akuntansi Jurnal Abdi Masyarakat Indonesia Software Development Digital Business Intelligence and Computer Engineering Jurnal Statistika dan Sains Data Jurnal Informatika Polinema (JIP) Jurnal Pengabdian Kepada Masyarakat
Retno Damayanti
Department Of Agricultural Engineering, Faculty Of Agricultural Technology, Brawijaya University, Malang
Religion Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Public Health Social Sciences Other

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Analysis of Demudification Drying of Peanut Seeds (Arachis hypogaea L.) and Identification of Seed Quality Pipit Elok Nikmatus Sholikah; Bambang Susilo; Sandra Malin Sutan; Retno Damayanti; Mochamad Bagus Hermanto
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 13, No 3 (2024): September 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i3.662-670

Abstract

One strategy to increase peanut production is to use good-quality seeds. The content of the seed determines the quality of the seed. Drying with low relative humidity can lower the drying temperature so that drying is done quickly and seed quality is maintained. This research was conducted to analyze the process and differences in peanut seed drying using dehumidifier drying and oven drying methods. Drying was carried out using a dehumidifier and oven drying machine at 30 °C, 40 °C, and 50 °C until the moisture content reached 9%, with observations every 30 minutes. Then the dried seeds were analyzed for their physical and physiological qualities. The results showed that the time needed for dehumidifier drying was faster than oven drying, with the details of dehumidifier machine drying at 30 °C, 40 °C, and 50 °C being 18.5 hours, 15 hours, and 10.5 hours. While drying in the oven at the same temperature, it takes 21 h, 17 h, and 12 h. From the results of the analysis of the physical quality of the seeds, the germination test, and the vigor test, it can be seen that dehumidifier drying gave the highest seed percentage results of 98%, 98%, and 88%. Keywords: Dehumidifier, Drying, Peanuts, Seed Quality, Water content.
Terapan ELSA (English Learning Speech Assistant) sebagai Inovasi Model Pembelajaran Bahasa Inggris Pada Anak Nurhasan, Usman; Rahmanto, Anugrah Nur; Damayanti, Retno; Nugraha, Bagas Setya Dian; Ariyanto, Rudy
Software Development, Digital Business Intelligence, and Computer Engineering Vol. 3 No. 02 (2025): SESSION (MARET 2025)
Publisher : Politeknik Negeri Banyuwangi Jl. Raya Jember km. 13 Labanasem, Kabat, Banyuwangi, Jawa Timur (68461) Telp. (0333) 636780

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57203/session.v3i02.2025.66-71

Abstract

This study aimed to evaluate the acceptance and effectiveness of an Augmented Reality (AR)-based English language learning system, ELSA, among students. Through the analysis of Technology Acceptance Model (TAM) questionnaire data and statistical tests, it was found that students had a positive perception of the usefulness and ease of use of the AR system. The use of ELSA significantly improved students' English language proficiency, particularly in vocabulary and pronunciation. Moreover, ELSA was also able to increase student motivation. However, this study identified disparities in student abilities and a lack of relevance of the material to the local context as challenges. Efforts have been made to address these issues, such as adjusting learning groups and revising materials. Overall, the results of this study demonstrate the great potential of AR in revolutionizing English language learning, especially for young learners, by providing a more interactive, personalized, and effective learning experience.
Prediksi arah harga saham PT Telekomunikasi Indonesia tbk dengan metode Support Vector Machine (SVM) Damayanti, Retno; Wutsqa, Dhoriva Urwatul
Jurnal Statistika dan Sains Data Vol 2, No 2 (2025): Jurnal Statistika dan Sains Data
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jssd.v2i2.18085

Abstract

Saham PT. Telekomunikasi Indonesia Tbk merupakan salah satu saham yang menjadi incaran banyak manajer investasi. Penelitian ini bertujuan untuk memprediksi arah harga saham PT. Telekomunikasi Indonesia Tbk dengan menggunakan metode Support Vector Machine (SVM). Variabel input yang digunakan dalam penelitian ini ada sebanyak sepuluh indikator teknikal yaitu simple 10-day moving average, weighted 10-day moving average, momentum, stochastic %K, stochastic %D, relative strength index, moving average convergence divergence, williams %R, accumulative/distribution oscillator, on balance volume. Metode SVM merupakan salah satu metode machine learning yang dapat digunakan untuk menyelesaikan masalah prediksi. Dalam penelitian ini menggunakan empat fungsi kernel yaitu linear, polinomial, RBF, dan sigmoid kernel. Hasil penelitian ini menunjukkan model terbaik adalah SVM dengan fungsi RBF kernel yang menghasilkan  nilai akurasi untuk data training sebesar 93,26% dan nilai akurasi untuk data testing sebesar 60,22%. Model SVM dengan fungsi RBF kernel dapat digunakan untuk memprediksi arah harga saham PT. Telekomunikasi Indonesia Tbk dengan nilai akurasi yang cukup baik untuk data testing, dan nilai akurasi yang sangat baik untuk data training.
Inovasi Pengelolaan Lomba Pramuka Berbasis Website dalam Rangka Penerapan Konsep Smart School Nurhasan, Usman; Sumiadji; Subhi, Dian Hanifudin; Rahmanto, Anugrah Nur; Damayanti, Retno; Suryadi, Satrio Binusa
Qardhul Hasan: Media Pengabdian kepada Masyarakat Vol. 11 No. 3 (2025): Qardhul Hasan: Media Pengabdian kepada Masyarakat
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/qh.v11i3.21316

Abstract

Kegiatan Pengabdian kepada Masyarakat (PKM) bertema Transformasi Digital dalam Pengelolaan Lomba Pramuka di Gugus Depan Arvegatu SMPN 4 Kota Malang dilaksanakan hingga Juli 2025 sebagai solusi atas permasalahan mitra yang masih mengelola lomba secara manual, sehingga menimbulkan inefisiensi, potensi kesalahan yang tinggi, dan keterbatasan transparansi. Tujuan kegiatan ini adalah mengembangkan sistem manajemen lomba terintegrasi berbasis website yang mampu mengotomatisasi proses pendaftaran, penjadwalan, penilaian, hingga publikasi hasil secara real-time. Pelaksanaan program menggunakan metode Participatory Action Research (PAR) dengan melibatkan panitia, peserta, juri, dan pembina pada tahap perancangan, uji coba, serta evaluasi sistem. Hasil implementasi menunjukkan adanya peningkatan signifikan pada efisiensi administrasi, akurasi data, dan transparansi pengelolaan lomba. Pengujian menggunakan System Usability Scale (SUS) menghasilkan skor rata-rata 84,2 dengan kategori Excellent, sedangkan evaluasi melalui Technology Acceptance Model (TAM) menunjukkan seluruh variabel berada pada kategori sangat tinggi. Temuan ini membuktikan bahwa sistem yang dikembangkan bermanfaat, mudah dioperasikan, dan memiliki potensi kuat untuk diadopsi secara berkelanjutan sebagai model pengelolaan lomba Pramuka yang modern, transparan, dan profesional.
Edukasi Pencegahan Covid-19 sesuai Protokol Kesehatan Menggunakan Media Poster Rahmawati, Rahmawati; Safira, Andrilia; Rahmawaty, Lutfiah; Fuadah, Sururul; Kamalia, Amalia Rohmatul; Sya’diyah, Halimatus; Kholifah, Jayanti Khusnul; Putri, Nurul Farahdila; Ardiansyah, Ardiansyah; Sulastri, Neng Lina; Faradila, Fian Arifiona; Suriyanto, Suriyanto; Damayanti, Retno; Nisa, Khurrotun; Fauzan, Ahmad
Jurnal Pembelajaran Pemberdayaan Masyarakat (JP2M) Vol. 2 No. 3 (2021)
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/jp2m.v2i3.13362

Abstract

Indonesia masih mengalami Pandemi Covid-19, beberapa upaya telah dilakukan oleh pemerintah, diantaranya menerapkan protokol kesehatan 5M dan menerapkan program vaksinasi. Tetapi masih banyak masyarakat yang belum mematuhi protokol kesehatan, salah satunya masih banyak ditemukan masyarakat yang tidak menggunakan masker. Melalui kegiatan KSM-Tematik 2021, mahasiswa tertarik memberikan solusi dengan mengedukasi masyarakat mengenai pencegahan Covid-19 melalui media poster di Desa Wonokerso, Kecamatan Pakisaji, Kabupaten Malang. Kegiatan dilakukan melalui tiga tahapan, diantaranya Persiapan, Pelaksanaan, dan Evaluasi. Desain Poster yang dibuat sebanyak empat desain dan dicetak dengan ukuran kertas Folio A4. Poster ditempelkan di beberapa lokasi Posko Satgas Covid-19. Setelah kegiatan penempelan poster dilakukan, mahasiswa mengamati perilaku masyarakat. Dengan demikian, edukasi pencegahan Covid-19 melalui media poster terhadap Masyarakat Wonokerso dinilai efektif.
Optimizing Goat Feed Production: The Role of Chopper Machine Technology Damayanti, Retno; Malin Sutan, Sandra; Hendrawan, Yusuf; Firmanda Al Riza, Dimas; Bagus Hermanto, Mochamad; Setiawan, Dwi
Journal of Innovation and Applied Technology Vol 11, No 1 (2025)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jiat.2024.010.002.06

Abstract

The application of grass chopper technology in the livestock sector plays an important role in increasing the efficiency of feed provision, particularly for goat farms. This study aims to analyze the effectiveness of the use of grass chopper machines in accelerating the availability of feed and its impact on the productivity of goat farms. The methods used included observation and direct interviews with farmers who applied this technology. The results of the study showed that the grass chopper machine was able to shorten feed preparation time by up to 50% so that farmers could provide sufficient and quality feed in a shorter time. The machine capacity is 200 kg/h, with an average chopped size of approximately 3-4 cm. Consistent chopping can increase feed digestibility, which contributes to increased body weight and livestock health.
Legal Protection for Land Rights Holders Against Mapping (Plotting) Errors in Electronic Land Certificates Damayanti, Retno; Kurniati, Nia; Rubiati, Betty
Al-Risalah VOLUME 25 NO 2, NOPEMBER (2025)
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-risalah.vi.61619

Abstract

The digital transformation of Indonesia’s land administration through electronic land certificates aims to improve transparency and legal certainty. However, spatial plotting errors remain a critical obstacle that undermines the certificates’ validity and public trust. This study examines the legal validity of electronic certificates containing plotting errors and the forms of legal protection available to rights holders within the framework of digital land governance. Using a normative juridical method with statutory, conceptual, and case approaches, the research reveals that such errors weaken the material legal force of certificates, as they no longer reflect actual land boundaries. The study’s novelty lies in its integration of digital accountability and administrative law principles, highlighting the state’s responsibility to ensure data accuracy and equitable protection in electronic land registration.
Analysis of Demudification Drying of Peanut Seeds (Arachis hypogaea L.) and Identification of Seed Quality Sholikah, Pipit Elok Nikmatus; Susilo, Bambang; Sutan, Sandra Malin; Damayanti, Retno; Hermanto, Mochamad Bagus
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 13 No. 3 (2024): September 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i3.662-670

Abstract

One strategy to increase peanut production is to use good-quality seeds. The content of the seed determines the quality of the seed. Drying with low relative humidity can lower the drying temperature so that drying is done quickly and seed quality is maintained. This research was conducted to analyze the process and differences in peanut seed drying using dehumidifier drying and oven drying methods. Drying was carried out using a dehumidifier and oven drying machine at 30 °C, 40 °C, and 50 °C until the moisture content reached 9%, with observations every 30 minutes. Then the dried seeds were analyzed for their physical and physiological qualities. The results showed that the time needed for dehumidifier drying was faster than oven drying, with the details of dehumidifier machine drying at 30 °C, 40 °C, and 50 °C being 18.5 hours, 15 hours, and 10.5 hours. While drying in the oven at the same temperature, it takes 21 h, 17 h, and 12 h. From the results of the analysis of the physical quality of the seeds, the germination test, and the vigor test, it can be seen that dehumidifier drying gave the highest seed percentage results of 98%, 98%, and 88%. Keywords: Dehumidifier, Drying, Peanuts, Seed Quality, Water content.
The influence of seed separation techniques and drying temperature in a dehumidified drying machine for tomato seed production Hermanto, Mochamad Bagus; Susilo, Bambang; Lutfi, Mustofa; Damayanti, Retno; Yanti, Yanti; Irshafiyah, Irshafiyah
Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Vol 7, No 1 (2024)
Publisher : Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.afssaae.2024.007.01.7

Abstract

Tomato (Lycopersicon esculentum Mill.) is a horticultural plant with high economic value, consumed as fresh fruit or a processed product. However, this plant still requires serious handling, especially in tomato seeds. The seeds are coated with quite slimy flesh and need to be separated using a suitable method so that the flesh layer can be cleaned optimally. Tomato seeds have a high water content, causing the seeds to easily damaged and quickly decrease their viability. Therefore, it is necessary to dry the seeds properly to lower the water content while maintaining the seed’s quality. This research aimed to calculate the time needed to reduce the water content of tomato seeds in a dehumidified drying machine, analyze the germination percentage of tomato seeds resulting from dehumidified drying using various separation techniques, and measure the effect of separation techniques. The temperature of dehumidified drying affects the germination and vigor of tomato seeds. The experiment was carried out using a two factorial Completely Randomized Design (CRD) method, namely separation technique (i.e., left for 24 hours, using 2% HCl, and using 10% Na2CO3) and temperature in a dehumidified drying machine (i.e., 30, 40, 50, and 60 °C). The highest germination percentage and vigor index were produced in the treatment with 2% HCl for 2 hours with a drying temperature of 40°C. The separation technique and drying temperature influenced the germination percentage and vigor index, but the interaction between separation techniques had no effect.
STUDI KANDUNGAN FITOKIMA PADA DAUN AFRIKA (Vernonia amygdalina) SEBAGAI POTENSI SUMBER ANTIOKSIDAN Malin Sutan, Sandra; Damayanti, Retno
Jurnal Teknologi Pertanian Andalas Vol 28 No 2 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jtpa.28.2.%p.2024

Abstract

Vernonia amydalina atau daun afrika memiliki kandungan fitokimia seperti klorofil, antosianin, karotenoid, dan flavonoid yang berperan penting dalam bidang pertanian, kesehatan, dan bahkan untuk industri. Flavonoid memiliki kemampuan untuk bertindak sebagai antioksidan kuat yang berperan sebagai obat dari penyakit diabetes mellitus. Aktivitas biologis antosianin juga memiliki banyak manfaat sebagai antioksidan, antihiperglikemia, dan juga aktivitas antibakteri. Penelitian ini bertujuan untuk mengetahui kandungan klorofil, flavonoid, antosianin, dan karotenoid pada daun afrika dengan tingkat pertumbuhan yang berbeda. Metode pengambilan data flavonoid yaitu dengan ekstraksi etanol pro analysis menggunakan spektrofotometri UV-Vis pada panjang gelombang 415 nm. Dari klasifikasi pertumbuhan tanaman, didapatkan andungan pigmen klorofil meningkat seiring tingkat pertumbuhan daun afrika. Pada daun bagian bawah memiliki nilai total klorofil tertinggi, yaitu 0,2036 mg/g. Kandungan flavonoid, antosianin, dan karotenoid meningkat seiring dengan peningkatan klorofil pada daun. Nilai tertinggi terdapat pada daun bagian bawah dengan nilai rata-rata total untuk kandungan flavonoid sebesar 12,37 mgQE/g, antosianin sebesar 0,052 mg/g, dan karotenoid sebesar 0,0284 mg/g. Daun bagian bawah memiliki warna hijau yang lebih tua dibandingan dengan bagian atas dan tengah. Daun bagian bawah merupakan daun yang paling dewasa dan tumbuh diawal, sehingga kadar pigmen flavonoid, antosianin, dan karotenoid cukup besar di bagian ini.
Co-Authors Abd. Rohim Achadiah Rachmawati Adamas Akbar Yurisdanto Affan Zahirul Fawazi Ahmad Fauzan Anna Fadliah Rusydi Annisa Taufika Firdausi Aqil, Abdulloh ARDIANSYAH ARDIANSYAH Aryo Pinandito Asep Mulyono Asyam Alfitra, Farhan Atiqah Nurul Asri Bambang Dwi Argo Bambang Susilo Betty Rubiati Deviana Yuanitasari Dhoriva Urwatul Wutsqa Dian Hanifudin Subhi Dida, Eki Naidania Dimas Firmanda Al Riza Dimas Firmanda Al Riza Dwi Setiawan Dyah Marganingrum Eka Larasati Amalia Faradila, Fian Arifiona Farid Angga Pribadi Ferdiano, Muhammad Rio Fitriyah, Hurriyatul Fuadah, Sururul Gunomo Djoyowasito Hamidah Nayati Utami Hardeli Hardeli Hary Sanjaya Hendra Ardiansyah, Rizqi Heri Nurohman Hersianty, Venny Meida Irshafiyah, Irshafiyah Izza, Ni'matul Joko Prasetyo Joko Prasetyo Kamalia, Amalia Rohmatul Keke Tamara Fahira Kholifah, Jayanti Khusnul Lailil Muflikhah Langgeng Setyono, Langgeng Larasati, Eka Malin Sutan, Sandra Mochamad Bagus Hermanto Mukhammad Abdul Jabbar Filayati Mustofa Lutfi Nazhif Ubaidillah Nia Kurniati Nisa, Khurrotun Novia Lusiana Novita Riski Nanda Nugraha, Bagas Setya Dian Nugraha, Detizca Melia Nur Komar Nyulistiowati Suryanti Pasaribu, Parlin Sahat Ivandamme Pipit Elok Nikmatus Sholikah Pramana Yoga Saputra Putra Prima Arhandi, Putra Prima Putri, Nurul Farahdila Rahayudin, Yudi Rahmanto, Anugrah Nur Rahmawati, Rahmawati Rahmawaty, Lutfiah Ratna Dwi Puji Astuti Rizka Maria Rudy Ariyanto Safira, Andrilia Sandra Malin Sutan Sandra Sandra Sandra Sandra Sandra Sandra Shoedarto, Riostantieka Mayandari Sholikah, Pipit Elok Nikmatus Sulastri, Neng Lina Sumiadji Supriyono Supriyono Suriyanto Suriyanto, Suriyanto Suryadi, Satrio Binusa Sya’diyah, Halimatus Taufiqurrahman, Adie Titon Elang Perkasa Usman Nurhasan Wahyu Dwi Ristianingrum Yanti Yanti Yusuf Hendrawan