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All Journal ASEAN Journal of Systems Engineering Majalah Forum Teknik UGM Traksi : Majalah Ilmiah Teknik Mesin BERKALA SAINSTEK Jurnal Teknologi Journal of Engineering and Technological Sciences JDE (Journal of Developing Economies) Indonesian Journal of Chemistry Paedagoria : Jurnal Kajian, Penelitian dan Pengembangan Kependidikan Angkasa: Jurnal Ilmiah Bidang Teknologi JURNAL PENDIDIKAN TAMBUSAI AL-HAYAT: Journal of Biology and Applied Biology Dharma Bakti Edumaspul: Jurnal Pendidikan Prosiding Seminar Nasional Teknik Mesin Jurnal Inovasi Teknik Kimia Journal of Appropriate Technology for Community Services ASEAN Journal of Chemical Engineering Scientific Journal of Mechanical Engineering Kinematika Jurnal Peduli Masyarakat Airlangga Journal of Innovation Management Community Empowerment Jurnal AbdiMas Nusa Mandiri International Journal of Industrial Engineering and Engineering Management INTERNATIONAL JOURNAL OF EDUCATION, INFORMATION TECHNOLOGY, AND OTHERS Automotive Experiences Journal of Mechanical Design and Testing (JMDT) Abdimas Altruis: Jurnal Pengabdian Kepada Masyarakat Jurnal Kiprah Pendidikan International Journal of Islamic Education, Research and Multiculturalism (IJIERM) Prosiding Seminar Nasional Teknologi Industri Berkelanjutan Jurnal Ilmu Pendidikan Indonesia JOMPA ABDI: Jurnal Pengabdian Masyarakat Techno Jurnal Pengabdian Masyarakat Bhinneka Honai SAINTIFIKA Jurnal Teknik Kimia dan Lingkungan National Multidisciplinary Sciences Journal of Energy, Materials, & Manufacturing Technology Jurnal Pengabdian Masyarakat dan Riset Pendidikan Jurnal Teknologi Jnanadharma JURNAL REKAYASA KIMIA & LINGKUNGAN Journal of Engineering and Technological Sciences Jurnal Bioteknologi & Biosains Indonesia (JBBI) Edubiotik : Jurnal Pendidikan, Biologi dan Terapan
Joko Waluyo
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Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Other

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Measuring Corruption in Indonesia Using Fuzzy Logic Waluyo, Joko; Tri Haryanto; Bambang Eko Afiatno; Tri Achmadi
Journal of Developing Economies Vol. 7 No. 2 (2022)
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jde.v7i2.35137

Abstract

Corruption is a phenomenon not easy to observe. Corruption theory and existing definitions are ambivalent, both in size and level. Mathematical models, and econometrics are prone to statistical errors. Fuzzy logic facilitates more humane modeling and analysis. Fuzzy logic is not bound by strong assumptions, as a solution to solve complex problems, and not precise, including corruption analysis. The main objective of this study is to measure corruption in Indonesia. The research method used fuzzy logic by specifying the Mamdani fuzzy inference system (FIS) model. FIS Mamdani was chosen because it is more human manner. Sources of secondary data used in this research from various institutions. The results show that corruption time series data can be produced. During the research year (1995-2020), corruption that occurred in Indonesia was 36.14 percent of real GDP per capita.
Edukasi Konsep Greenhouse dan Pemanfaatan Energi Surya dalam Pertanian Ramah Lingkungan: Pengabdian Waluyo, Joko; Syafryudin; Sholeh, Muhammad; Setyowati Rahayu, Suparni; Herry Purwanti, Noordiana; Bikorin
Jurnal Pengabdian Masyarakat dan Riset Pendidikan Vol. 4 No. 1 (2025): Jurnal Pengabdian Masyarakat dan Riset Pendidikan Volume 4 Nomor 1 (Juli 2025 -
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jerkin.v4i1.2164

Abstract

Kegiatan Pengabdian kepada Masyarakat (PkM) ini dilaksanakan di Desa Bendung, Kalurahan Bendung, Kapanewon Semin, Kabupaten Gunungkidul, dengan tujuan untuk menyampaikan pengetahuan awal kepada masyarakat mengenai pemanfaatan teknologi greenhouse yang terintegrasi dengan Pembangkit Listrik Tenaga Surya (PLTS). Kegiatan ini merupakan tahap awal dari rencana implementasi sistem pertanian berbasis teknologi tepat guna yang mendukung efisiensi energi, produktivitas pertanian, dan pengembangan wisata edukatif di kawasan Lumbung Mataraman. Metode kegiatan yang digunakan meliputi observasi lapangan, pemetaan kebutuhan mitra dan diskusi kelompok terfokus yang melibatkan masyarakat, pengelola wisata, dan perwakilan kelompok tani. Hasil kegiatan menunjukkan bahwa kelompok tani dan kelompok sadar wisata memiliki antusiasme dan ketertarikan yang tinggi terhadap pengembangan sistem greenhouse khususnya sebagai bagian dari daya tarik wisata edukasi berbasis teknologi. Kegiatan ini menjadi langkah awal penting dalam proses transfer pengetahuan dan penguatan kapasitas masyarakat.
Sosialisasi Penerapan Teknologi PLTS untuk Sistem Irigasi Otomatis pada Petani Cabai di Banyuraden Sleman Andaka, Ganjar; Sholeh, Muhammad; Yusuf, Muhammad; Rachmawati, Rr Yuliana; Waluyo, Joko
Jurnal Pengabdian Masyarakat Bhinneka Vol. 4 No. 1 (2025): September
Publisher : Bhinneka Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58266/jpmb.v4i1.429

Abstract

Kegiatan pengabdian kepada masyarakat ini bertujuan untuk memberikan pemahaman dan sosialisasi  kepada petani cabai di Desa Nogotirto Gamoing Sleman mengenai penerapan teknologi Pembangkit Listrik Tenaga Surya (PLTS) untuk sistem irigasi otomatis. Permasalahan yang dihadapi mitra adalah ketergantungan pada pasokan listrik PLN dan pengoperasian irigasi manual yang kurang efisien dalam penggunaan waktu dan tenaga. Melalui sosialisasi ini, peserta diperkenalkan pada konsep dasar PLTS, mekanisme kerja sistem irigasi otomatis, serta manfaatnya dalam mendukung efisiensi energi dan keberlanjutan pertanian. Metode kegiatan meliputi penyampaian materi dan diskusi serta kunjungan ke lapangan. Hasil kegiatan menunjukkan peningkatan pengetahuan para petani mengenai teknologi PLTS dan pemahaman cara mengintegrasikan dengan sistem irigasi otomatis. Diharapkan penerapan teknologi ini akan dapat membantu petani mengurangi biaya operasional, meningkatkan produktivitas, serta mendukung pertanian ramah lingkungan.
Adsorption Kinetics and Process Parameter Effects on Oil Uptake by Tamarind Fruit-Shell Activated Carbon Ernawati, Lusi; Anifah, Eka Masrifatus; Musyarofah, Musyarofah; Reza, Mutia; Waluyo, Joko; Sapawe, Norzahir
Jurnal Teknik Kimia dan Lingkungan Vol. 9 No. 2 (2025): October 2025
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jtkl.v9i2.7596

Abstract

Oil contamination presents a major challenge to wastewater treatment systems due to its detrimental effects. This research explores the effectiveness of activated carbon derived from tamarind fruit shells as an adsorbent for removing oil from wastewater. The activated carbon was prepared using three different chemical agents: phosphoric acid, zinc chloride, and sodium hydroxide. Characterization of the resulting carbon materials was performed using XRD, FTIR, SEM, and BET analysis. Batch adsorption experiments were conducted to evaluate the influence of initial oil concentration, adsorbent dosage, contact time, temperature, and pH. The BET specific surface area, pore size and total pore volume for the optimum adsorption capacity of activated carbon using H3PO4 are obtained at 617.59 m2.g-1, 37.14 cm3.g-1 and 0.812 g.g-1, respectively. Optimal adsorption occurred at an oil concentration of 5000 mg.L-1, a dosage of 1 g.L-1, a contact time of 60 minutes, a temperature of 60°C, and neutral pH (7). Across all activating agents, the Langmuir isotherm best described the adsorption equilibrium, while adsorption kinetics followed the pseudo-second-order model. Among the samples, activated carbon treated with H3PO4 demonstrated the highest adsorption capacity (1070 mg.g-1), followed by ZnCl2 (879 mg.g-1), and NaOH (643 mg.g-1). These results indicate that tamarind shell-derived activated carbon is a cost-effective and efficient solution for oil removal in wastewater treatment applications.
Comparative Study on Magnetic Activated Carbon Derived from Delignified and Non-delignified Palm Kernel Shell: Synthesis, Characterization, and Methylene Blue Adsorption Analysis Waluyo, Joko; Nabila, Zahrani Putri; Putra, Ariadi Indra; Purba, Ibnu Tryansar; Izzulhaq, Muhammad Ghozy; Kurnia, Irwan; Septian, Ardie; Ernawati, Lusi
Journal of Engineering and Technological Sciences Vol. 57 No. 4 (2025): Vol. 57 No. 4 (2025): August
Publisher : Directorate for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2025.57.4.10

Abstract

Indonesia is the global leader in palm oil production, but it deals with significant challenges in managing palm oil mill waste, particularly palm kernel shells (PKS). This study investigated palm kernel shell (PKS) as a precursor for synthesizing magnetic activated carbon (MAC) to enhance its performance as an adsorbent for liquid waste treatment.  The precursor was delignified using alkali liquor and magnetized by incorporating Fe²⁺ and Fe³⁺ ions, followed by chemical activation (ZnCl₂) through an intermediate pyrolysis process. The performances of delignified and non-delignified MAC (DMAC and NDMAC) were evaluated through methylene blue adsorption tests (25–45 mg/L), focusing on adsorption capacity, dye removal efficiency, as well as isotherm and kinetic analysis. DMAC demonstrated a larger surface area, leading to enhanced adsorption performance. Morphological analysis revealed that delignification had a positive influence on the pore structure and size, resulting in a more uniform distribution. DMAC exhibited an adsorption capacity 16.3% higher (35.3 mg/g) in the equilibrium phase and 16.6% higher at maximum adsorption capacity (50.25 mg/g) according to the Langmuir isotherm. Furthermore, the inclusion of iron ions (Fe2+/Fe3+) promoted pore expansion and formation in the precursor material. The study found the Langmuir isotherm model (R² = 0.999) to be the best fit for methylene blue adsorption, while the pseudo-second-order kinetic model (R² = 0.9958) demonstrated an excellent fit for adsorption kinetics. The findings confirm that DMAC and NDMAC derived from PKS are effective for methylene blue dye adsorption, technically.
Pemanfaatan Teknologi Tepat Guna Sistem Sprinkle untuk Mendukung Produktivitas Pertanian di Desa Bendung Semin Gunungkidul Waluyo, Joko; Sholeh, Muhammad; Syafriyudin, Syafriyudin; Rahayu, Suparni Setyowati; Purwanti, Noordiana Herry; Bikorin, Bikorin
ABDIMAS ALTRUIS: Jurnal Pengabdian Kepada Masyarakat Vol 8, No 2 (2025): Oktober 2025
Publisher : Universitas Sanata Dharma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24071/aa.v8i2.9951

Abstract

Increasing agricultural productivity is a key focus in supporting food security and the welfare of farmers.  One of the challenges in managing agricultural land in Bendung Village is the unpredictable availability of water and the reliance on traditional irrigation methods.  This often hampers the optimization of agricultural yields. This community service aims to apply an appropriate technology in the form of a sprinkler irrigation system as an innovative solution to improve the efficiency of irrigating agricultural land in Bendung Village. The sprinkler system used is supported by a renewable energy source in the form of a Solar Power Plant (PLTS), so that it is more environmentally friendly and sustainable. The methods used included socialization and training of farmers regarding the use and maintenance of sprinkler systems, as well as monitoring the impact of the application of this technology on crop productivity. The evaluation results showed a significant improvement in water usage and time efficiency. The irrigation process using the old system took about 2-3 hours of watering labor on a 600 m2 field, while using sprinklers, farmers only need about 30 minutes. The implementation of the sprinkler system not only reduces operational costs but also makes water use more efficient and lowers total costs significantly. With a total water saving of about 41.6%, this technology provides long-term financial benefits to farmers in Bendung Village. Additionally, the system's relatively easy maintenance also adds value to the farm's sustainability and efficiency. This renewable energy-based sprinkler system can be a model for effective and sustainable irrigation solutions for other agricultural areas
From Epistemology to Pedagogy: Philosophical Foundations for Deep Learning in the Merdeka Curriculum Fikri, Kamalia; Mastini; Mahardika, Ketut; Waluyo, Joko; Soepomo, Bambang
Jurnal Kiprah Pendidikan Vol. 4 No. 4 (2025): Jurnal Kiprah Pendidikan | Oktober 2025 (In Press)
Publisher : Program Studi Pendididikan Guru Sekolah Dasar Fakultas Keguruan dan Ilmu Pendidikan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33578/kpd.v4i4.p725-732

Abstract

In Indonesia, the Independent Curriculum (Kurikulum Merdeka) was introduced as a response to challenges, but its successful implementation depends heavily on its integration with a deep learning approach. This study aims to analyze the relationship between epistemology, pedagogy, and deep learning in the Independent Curriculum through a philosophically based literature review. The analysis shows that epistemology serves as a conceptual foundation that determines perspectives on the nature of knowledge, pedagogy serves as an implementation bridge that translates philosophical foundations into learning strategies, while deep learning is the ultimate goal of conceptual understanding, critical reflection, interconceptual relationships, and the application of knowledge in real contexts. Thus, deep learning is an epistemological and pedagogical transformation that contributes to the formation of reflective, critical, and character-based students in facing the dynamics of 21st-century life.
Co-Authors Abdul Karim Zulkarnain Abdul Wahid Abil Fida Siskayanti Agus Imam Sonhaji Agustinus Winarno Akhmad F. Alhikami Akif Mahrus Ali Allam K, Muhammad Amalia Febryane Adhani Mazaya Anifah, Eka Masrifatus Anis Kristiani, Anis Ari Ariangga Orranius Putra Patarru Ari Diana Susanti, Ari Diana Arief Budiman Ariyadi, Hifni Mukhtar Bakar, Syafriyudin Abu Bambang Eko Afiatno Bambang Purwono Basuki, Rio Basworo, Agung Tri Bikorin Bikorin Dahlan, Irvan Damayanthy, Ramanda Ayu Damianus Mario Ricky Fernando Damianus Mario Ricky Fernando Daroini, Moch. Fauzun Deny Ratna Yuniartha Dinda Safitri Ramadhani Dodik Prakoso Eko Hery Suwandojo Dodik Prakoso Eko Hery Suwandojo Dwi Siswanta Edi Iskandar, Edi Edy Prayitno Eko Haryanto Eko Haryanto Ely Afridiana Kuncoro Ernawati, Kadek Lusi Fajar Y. Prabowo Ferhadius Endi Ferriawan Yudhanto Ganjar Andaka Gunawan Nugroho Hadi Saputra Hana Himatul ‘Aliyah Haris Puspito Buwono Hartono, Moh Hasan Albana Rhomadhon Hasanah, Rafiatul Hayatullah, Wahyu Herry Purwanti, Noordiana Herry, Noordiana Heru S. B. Rochardjo Hotlan Samosir Hudiyo Firmanto, Hudiyo I Ketut Mahardika Ibnu Singgih Pranoto Ikbar, Royhan Indah Retuwati Ramadhana Izzulhaq, Muhammad Ghozy Jenni Prasetiyo Johan Syafri Mahathir Ahmad Jumina Jumina Jussac Maulana Masjhoer Kamalia Fikri Kamalia Fikri Ketut Mahardika Kholiq Fadillah Amriansyah Kosmar Marojahan Damanik Kurnia, Irwan Kuswati Kuswati Lestari, Nidi Lestary, Septy Luthfiana Nurul Hidayati, Luthfiana Nurul Machida, Masato Mahda Mega Andyka Hieguyta Marausna, Gaguk Mardiana, Alif Margono Margono Mastini Michael Seen Mochammad Iqbal Mohammad Imam Farisi Mohammad Wildan Habibi, Mohammad Wildan Muhammad Farhan Abrar Muhammad Ibrahim Hanif Muhammad Kusumawan Herliansyah Muhammad Sholeh MUHAMMAD SHOLEH Muhammad Yusuf Muslim, Ilham Taufik Musyarofah Musyarofah, Musyarofah Nabila, Zahrani Putri Ndaru Pratama, Nico Nidia Lestari Noordiana Herry Purwanti Norman, Hafiz Nugroho Dewayanto Nur Aini Masruroh Nur Mayke Eka Normasari Nur Wahyudi Paryanto Paryanto Pazli, Pazli Prabang Setyono Pramudya Dwi Aristya Putra Pranolo, Sunu Herwi Purba, Ibnu Tryansar Purmanna, Astrino Putra, Ariadi Indra Putri, Rizqi Wulandari Putro, Firman Asto Qadarusman, Muhammad Luqman Rachmawati, Rr Yuliana Rahmat Bayu Raziq, Abdur Reza, Mutia Ridho Bayuaji Ridho Hantoro Rofika Rofika, Rofika Rony Arjuna Rosalinda, Julitha D Rosalinda, Julitha Dwi Saiful Huda Samuel Kristiyana Sapawe, Norzahir Sembodo, Bregas Siswahjono Tatag Septian, Ardie Setyowati Rahayu, Suparni Sidiq, Muhammad Fadel Simarmata, Henni Mariani Slamet Hariyadi Soepomo, Bambang Su Dar mono Subchan, Wahju Sudarmono Sudarmono Sugiyanto - Sugiyanto Sugiyanto Sunu Herwi Pranolo Suparni Setyowati Rahayu Sutrisno S Suwanto Raharjo Syafriyudin Syafryudin Tiurlina Siregar Totok R. Biyanto TRI ACHMADI Tri Haryanto Triyanto, Heru Agus Umi Fadilah, Umi Wahyu Wilopo Wahyu Wilopo Wicaksana, Hangga Yayuk Fatmawati, Yayuk Yehezkiel Steven Kurniawan Yonathan Ito Yudha, Venditias Yuli Pratiwi Yuli Pratiwi Yulinar Pramesti Cahyani Zaid Haidar Khairy Zainal Abdi