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All Journal Candra Sangkala Jurnal Kedokteran Brawijaya Trikonomika: Jurnal Ekonomi Agrointek Jurnal Eksplora Informatika Jurnal Komtika (Komputasi dan Informatika) METHOMIKA: Jurnal Manajemen Informatika & Komputerisasi Akuntansi JITTER (Jurnal Ilmiah Teknologi Informasi Terapan) Jurnal Teknologi dan Informasi JURNAL MANAJEMEN BISNIS Infotronik : Jurnal Teknologi Informasi dan Elektronika Journal of Information System, Applied, Management, Accounting and Research @is The Best [Accounting Information System & Information Technology Business Enterprise] Jutisi: Jurnal Ilmiah Teknik Informatika dan Sistem Informasi Technologia: Jurnal Ilmiah Jurnal Informatika dan Rekayasa Perangkat Lunak Jurnal Penegakan Hukum dan Keadilan JINAV: Journal of Information and Visualization International Journal of Engineering, Science and Information Technology Jurnal Ekonomi International Journal of Research and Applied Technology (INJURATECH) Jawa Dwipa Jurnal Algoritma Jurnal Dimamu Journal of Peasants' Rights Jurnal Komputer Bisnis Jurnal Teknologi Informasi Magna: Journal of Aconomics, Management, and Business Jurnal Akuntansi, Manajemen dan Perbankan Syariah Journal of Islamic Economics Lariba Jurnal Pendidikan Kristen dan Ilmu Teologi Marturia Pangkaja: Jurnal Agama Hindu Jurnal Agro Fabrica Coreid Journal SmartComp Jurnal Teknologi Informasi Indonesia JEPEmas: Jurnal Pengabdian Masyarakat (Bidang Ekonomi) Amerta Berkala Arkeologi As-sunniyyah JuTISI (Jurnal Teknik Informatika dan Sistem Informasi) Jurnal Komtika (Komputasi dan Informatika)
Heri Purwanto
Universitas Sangga Buana, Bandung City, West Java 40124, Indonesia
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy 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 Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Social Sciences Transportation Other

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NILAI-NILAI KEAGAMAAN DALAM KIDUNG SUDAMALA KAJIAN TEKSTUAL DAN ARKEOLOGIS Purwanto, Heri; Coleta Palupi Titasari
Pangkaja: Jurnal Agama Hindu Vol 28 No 2 (2025)
Publisher : Universitas Hindu Negeri I Gusti Bagus Sugriwa Denpasar

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Kidung Sudamala is one of the literary works that contains past knowledge, it is important to explore further aboue the religious values that are in it. In this study, it is traced about the religious system contained in the Kidung Sudamala. This research aims ti explain the expressions and descriptions of the religious system that are in the Kidung Sudamala. Primary data is studied by using textual analysis, then in interpretating its meaning assisted by supporting sources (archaeological data). The research method used in this study consists of data collection and data analysis. Based on the results of this study, it shows various religious components that can be traced, namely religious emotions, belief systems, ceremonial equipment, and religious people. In the text, ruwatan ritual becomes the main topic that tells aboue the liberation of Dewi Durga from curse.
Optimasi Bandwidth Jaringan Internet SMAN 4 Magelang Menggunakan Traffic Shapping Per Connection Queue (PCQ) Purwanto, Heri; Hanafi, Mukhtar; Pujiarto, Bambang
Jurnal Komtika (Komputasi dan Informatika) Vol 1 No 1 (2017)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/komtika.v1i1.1681

Abstract

SMAN 4 Magelang ialah salah satu sekolah yang membutuhkan internet sebagai salah satu media dalam mencari informasi, akan tetapi bandwidth yang dialokasikan untuk pengguna internet belum diatur dengan baik, sehingga bandwidth yang tersedia belum mampu memenuhi kebutuhan pengguna internet secara optimal. Selain itu, SMAN 4 Magelang memiliki perilaku aktifitas yang berbeda - beda dalam menggunakan internet. Aktivitas penggunaan internet tersebut diantaranya browsing, mailing, chatting, streaming, dan download. Penggunaan internet yang berbeda tersebut membutuhkan pengaturan dalam pembagian bandwith internet agar pengguna internet menerima alokasi bandwidth sesuai dengan kebutuhan penggunaan internet. Pengaturan bandwith untuk kebutuhan internet dilakukan dengan menggunakan Traffic Shapping yang mengatur bandwidth internet untuk pengguna internet sesuai dengan aktivitas penggunaan internet. Traffic Shapping PCQ memastikan bahwa setiap pengguna dalam satu jaringan mendapatkan bandwith yang sama dengan membatasi besar bandwidth per alamat IP pengguna internet sehingga tidak mempengaruhi kecepatan koneksi internet pengguna yang lain. Hasil penelitian ini dapat mengoptimalkan bandwidth internet untuk memenuhi kebutuhan pengguna internet di SMAN 4 Magelang.
Tinjauan Literatur: Dampak Transformasi Digital terhadap Pengambilan Keputusan di Lembaga Pemerintahan Ma'sum, Aziz; Purwanto, Heri; Nugraha, Rikky Wisnu
Jurnal Algoritma Vol 22 No 2 (2025): Jurnal Algoritma
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/algoritma/v.22-2.3091

Abstract

The development of information and communication technology (ICT) has fundamentally changed the way government agencies provide services and make decisions. Digital transformation has now become a strategic necessity for realizing efficient, transparent, and adaptive governance in line with the changing times. This study aims to analyze the impact of digital transformation on decision-making in government institutions through a literature study approach. The method used is a Systematic Literature Review (SLR) by examining 10 relevant national scientific articles published in the period 2020–2025. The analysis was conducted qualitatively using content analysis techniques to identify the main themes, benefits, and challenges of digitization on the public decision-making process. The results show that digital transformation improves bureaucratic efficiency, strengthens transparency, and expands public participation in policy formulation. The use of technologies such as e-Government, artificial intelligence (AI), and big data analytics enables faster, more accurate, and evidence-based decision-making. However, its success is highly dependent on the readiness of human resources, digital infrastructure, and data security. In conclusion, digital transformation is not merely a technological innovation, but also a key driver towards a smart, transparent, and data-driven government system.
ANALISIS TERMODINAMIKA DAN KINETIKA PADA PROSES TRANSESTERIFIKASI MINYAK SAWIT MENJADI BIODIESEL DENGAN METODE SYSTEMATIC LITERATURE REVIEW Irham, Wardatul Husna; Purwanto, Heri; Adhyaksa, Bagus; Putra, Raihant Syah; Syahda, Arsyifa Nirmala; Ambarita, Tony Gunawan
Jurnal Agro Fabrica Vol. 7 No. 2 (2025): Desember 2025
Publisher : Institut Teknologi Sawit Indonesia (ITSI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47199/jaf.v7i2.349

Abstract

ABSTRAK Biodiesel merupakan bahan bakar ramah lingkungan yang dihasilkan melalui proses transesterifikasi antara minyaknabati dan alkohol dengan bantuan katalis.minyak kelapa sawit Adalah bahan baku utama yang potensial karenamemiliki ketersediaan yang melimpah. Pembahasan ini bertujuan untuk menganaisis aspek termodinamika dankinetika pada proses transesterifikasi minyak kelapa sawit menjadi biodiesel.berdasarkan Jurnal yang telah kami baca.Analisis ini difokuskan pada jenis katalis,suhu reaksi,jenis alcohol, dan nilai energi yang mempengaruhi produtivitasbiodiesel.Hasil telah menunjukan bahwa Sebagian besar analisis ini menggunakan model kinetika Arrhenius denganpendekatan kinetika orde satu terhadap trigliserida.niali yang terkandung dalam energi aktivasi (Eₐ) sekitar 10–60kJ/mol, dengan katalis basa homogen (NaOH dan KOH) menghasilkan laju reaksi lebih cepat dan Eₐ lebih rendahdibandingkan katalis heterogen berbasis CaO atau abu sawit.secara termodinamika dan reaksi transestrifikasi bersifatendotermik dan reversible, dikarenakan peningkatan suhu dan rasio alcohol mempercepat proses pembentukanbiodiesel.Metanol ini terbukti lebih efisien dibandingkan dengan etanol, karena metanol menghasilkn konversi tinggilebih tinggi dan waktu reaksi lebih singkat dibandingkan dengan etanol. Pemahaman yang luas terhadap hubunganantara termodinamika dan kinetika yang menjadi dasar penting utuk merancang proses produksi biodiesel yang lebihefisien, ekonomis dan berkelanjutan. ABSTRAK Biodiesel is an environmentally friendly fuel produced through a transesterification process between vegetable oiland alcohol with the aid of a catalyst. Palm oil is a potential primary raw material due to its widespread availability.This discussion aims to analyze the thermodynamic and kinetic aspects of the transesterification process of palm oilinto biodiesel based on twenty journals that we have read. This analysis focuses on the type of catalyst, reactiontemperature, type of alcohol, and energy value that affect biodiesel productivity. The results show that most of theseanalyses employ the Arrhenius kinetic model, using a first-order kinetic approach for triglycerides. The activationenergy (Eₐ) value is around 10–60 kJ/mol, with homogeneous base catalysts (NaOH and KOH) producing fasterreaction rates and lower Eₐ compared to CaO-based heterogeneous catalysts or palm ash. Thermodynamically, thetransesterification reaction is endothermic and reversible, as increased temperature and alcohol ratio accelerate thebiodiesel formation process. Methanol has proven to be more efficient than ethanol, as it produces higher conversionrates and shorter reaction times compared to ethanol. A broad understanding of the relationship betweenthermodynamics and kinetics is an important basis for designing a more economically efficient and sustainablebiodiesel production process.
APLIKASI SEVEN TOOLS QUALITY CONTROL DALAM PENGENDALIAN MUTU CRUDE PALM OIL (CPO) DI TANGKI TIMBUN PABRIK KELAPA SAWIT Purwanto, Heri; Mahyunis; Hartanti, Puspita Sri
Jurnal Agro Fabrica Vol. 7 No. 2 (2025): Desember 2025
Publisher : Institut Teknologi Sawit Indonesia (ITSI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47199/jaf.v7i2.383

Abstract

Quality control of Crude Palm Oil (CPO) is essential to ensure compliance with quality standards. This study aims to control and analyze CPO quality parameters, namely Free Fatty Acid (FFA), moisture content, and dirt content, using the Seven Tools of Quality Control. The research was conducted at a palm oil mill in South Labuhanbatu Regency, North Sumatra, using laboratory quality data collected from October to December 2024. A descriptive quantitative method was applied by utilizing check sheets, Pareto diagrams, control charts, and fishbone diagrams within the Quality Control Circle (QCC) approach. The results showed that quality deviations occurred in 28 samples for FFA, 22 samples for dirt content, and 14 samples for moisture content. Pareto analysis indicated that FFA and dirt content were the main contributors to quality problems, accounting for 78.13% of total deviations. Control chart analysis revealed several periods of process instability, particularly in FFA values. The study concludes that the Seven Tools of Quality Control are effective in identifying dominant quality problems and supporting improvement efforts to enhance CPO quality.
KLASIFIKASI KERUSAKAN MESIN MOTOR MENGGUNAKAN 2D-CNN DENGAN FITUR MFCC DAN SPECTRAL CONTRAST Sofian, Rudy; Purwanto, Heri; Nugraha, Rikky Wisnu; Kanugrahan, Ghanim; Hidayat, Alamsyah Wirayudha
Technologia : Jurnal Ilmiah Vol 17, No 2 (2026): Technologia (April)
Publisher : Universitas Islam Kalimantan Muhammad Arsyad Al Banjari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/tji.v17i2.22487

Abstract

Sepeda motor memiliki peran penting dalam mobilitas masyarakat, namun banyak pengguna yang belum mampu mengenali tanda-tanda awal kerusakan mesin, sehingga sering terjadi kesalahan diagnosis saat perawatan. Penelitian ini bertujuan untuk mengembangkan model klasifikasi kerusakan mesin sepeda motor menggunakan 2D Convolutional Neural Network (2D-CNN) dengan fitur ekstraksi Mel-Frequency Cepstral Coefficients (MFCC) dan Spectral Contrast. MFCC digunakan untuk merepresentasikan sinyal audio dalam bentuk dua dimensi, sedangkan Spectral Contrast menonjolkan perbedaan antara puncak dan lembah spektrum. Dataset terdiri atas rekaman suara mesin normal dan mesin dengan kerusakan pada timing chain, masing-masing lima sampel per label. Data melalui tahapan praproses, ekstraksi fitur, augmentasi, pelatihan, dan evaluasi. Hasil pelatihan awal menunjukkan adanya overfitting, dengan akurasi pelatihan mencapai 100% pada epoch ke-8, sementara akurasi validasi hanya sekitar 50%. Setelah dilakukan augmentasi data melalui penambahan noise, pitch shifting, dan time stretching hingga total data menjadi 20 sampel per label, kinerja model meningkat dengan akurasi pelatihan sebesar 94,73% dan hasil validasi yang lebih stabil. Secara keseluruhan, model yang diusulkan mencapai akurasi 75%, dengan kemampuan yang lebih baik dalam mengenali kerusakan timing chain dibandingkan kelas lainnya.
Culture, social capital, Halal certification, and Islamic financing access: Evidence from MSMEs in Wonosobo, Central Java, Indonesia Purwanto, Heri; Efendi, Bahtiar; Musfiroh, Mila Fursiana Salma; Adinugraha, Hendri Hermawan
Journal of Islamic Economics Lariba Vol. 12 No. 1 (2026)
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jielariba.vol12.iss1.art33

Abstract

IntroductionThe expansion of the halal economy has increased the importance of halal certification for Micro, Small, and Medium Enterprises (MSMEs) in Indonesia. Although halal certification enhances product credibility and competitiveness, many MSMEs continue to experience difficulties in obtaining certification and accessing Islamic financing. Existing studies have largely examined halal certification, Islamic financing, and cultural factors separately, leaving limited understanding of how these dimensions interact within a unified halal ecosystem.ObjectivesThis study aims to explore the role of local culture in supporting halal certification implementation and facilitating MSME access to Islamic financing. Specifically, it examines how cultural values, social capital, community trust, and religious networks influence certification adoption, financing accessibility, and business performance.MethodThis study employed a qualitative case study approach in Wonosobo, Central Java, Indonesia. Data were collected through semi-structured interviews, participant observation, and document analysis involving MSME owners, representatives of Islamic financial institutions, halal certification facilitators, religious leaders, and community figures. Data were analyzed using the interactive model of data condensation, data display, and conclusion verification. Triangulation and member-checking procedures were applied to enhance credibility and trustworthiness.ResultsThe findings indicate that local culture functions as a source of social capital that encourages halal certification adoption and strengthens trust in Islamic financial institutions. Approximately 78% of MSMEs perceived halal certification as part of their religious and cultural values, while 82% of MSMEs active in religious communities had obtained or were pursuing certification. Halal-certified MSMEs experienced stronger market credibility, with 71% reporting increased sales and an average turnover growth of 25%. Furthermore, 55% of MSMEs reported easier access to Islamic financing after certification, and 87% of Islamic financial institutions expressed greater confidence in financing halal-certified enterprises. However, 29% of certified MSMEs continued to face financing constraints due to limited financial literacy and administrative capacity. ImplicationsThe results highlight the importance of integrating cultural resources, halal certification programs, and Islamic financing initiatives in strengthening MSME development. Collaborative efforts involving certification authorities, Islamic financial institutions, local governments, and community organizations are necessary to improve halal literacy, financial inclusion, and the effectiveness of the halal economic ecosystem. Originality/NoveltyThis study contributes to the literature by proposing an integrative framework that positions culture as a mediating mechanism linking social capital, halal certification, institutional legitimacy, and access to Islamic financing. The study extends existing research by demonstrating how culturally embedded trust and community networks facilitate both certification adoption and financial inclusion among MSMEs.
Co-Authors Abdurahman, Fairuz Rifqi Adhyaksa, Bagus Adini, Izmi Agus Rahayu Agus Yudianto Akbar Al Ghifari Al-Khoir, Habib Aldi Novriadi aldi, andi Alfirdaus, Muhammad Fidly Ali Ferhat Ambarita, Tony Gunawan Andres Permana Shidiq Andri Budi Santoso Andriansyah, Edi Anggi Algifary Salim Anggraeni, Octa Putri Antama, Febrizal Anugrah Rizki Samudra Anugrah Taufik Apriyanti, Siti Nur Arif Darmawan Arifin, Davit Aryanggara, Yanwar Azka, M. Gilang Maulana Bahtiar Efendi Bambang Pujiarto Bareta, Arief Beki Subaeki, Fatkhan Gunawan, Aldy Rialdy Atmadja, Beki Budi Prasetio Butar-Butar, Revaldo Chika Gustiana Widiarestuwati Coleta Palupi Titasari Dania, Afifah Farrah Deastuti, Sherly Dewantoro, Bambang Didin Saepudin Diqy Fakhrun Shiddieq Dwi Anggraini, Nur Fitria Dyas Firmansyah Dzakiyun Naval Edy Winarno Fachrizal Fahmi Reza Ferdiansyah Farah Fadilah Alfarabi Fariel Rizky Megawan Fatah At Thariq Fauzi Ramdani Fernanda Rahmaeni Nur Taufik Fiqri Arya Nugraha Firman Maulana, Firman Giyanto Giyanto Gulo, Iwan Sah Putran Gunawan, Yanyan Gustian, Robby Hamdani, Deden Sofyan Hananto, Ananda Zagkia Hartanti, Puspita Sri Hendri Hermawan Adinugraha Hidayat, Alamsyah Wirayudha HUTASUHUT, MHD FUAD MAHRUZ WIRA'I Indiati Indiati, Indiati Iwan Adhicandra Kamaulid, Tabiya Rayna Kanugrahan, Ghanim Karbito Karbito, Karbito Kaukab, M. Elfan Khaerul Manaf Kraugusteeliana Kraugusteeliana Kusdayanti, Niken Kusumo Atmojo, Langgeng Lili Adi Wibowo Lini, Nahdia M. Trihudiyatmanto Ma'sum, Aziz Maharani, Hastin Mahyunis Maisa Azizah Asmara Malau, Febiola Angelia Manurung, Emy Fadillah Margiyono, Toto Maulana Akbar, Muhamad Asif Maulana Azka, Muhammad Gilang Maulana, Yono Mayliani, Atika Mochamad Cory Sakti Triwangsa Mochamad Raffnie Prayogha Mochamad Salman Ramadhan Mohamad Gifahri Addiansyah Mohamad Rizky Muhammad Hafiz Mukhtar Hanafi Mulya, Adi Tri Mulyara, Budi Munawar, Asep Munthe, Mandala Putra Musfiroh, Mila Fursiana Salma Nabilla Labaika Thalia Margaret Namudany, Rania Nanda Putri Yasyallah Nasution, Faiz Albar Nasution, Santa Yusuf Nasyikin, Muhammad Neti Budiwati Nita Yuanita Noor Hikmah, Noor Nugraha, Rikky Wisnu Nurhayati, Eni Candra Nurhidayati, Titin Nurul Fauziah Pada Mulia Raja Pangestuti, Anni Enggal Perdana, Rangga Satria Pratama, Ghandy Priadi, Ery Pulungan, Qias Nabirah Putra, Alifudin Nuryansyah Putra, Pramono Dimas Dwi Putra, Raihant Syah Putranto, Agus Rafi Martua Syahputra Rahimah Rajeg, Kadek Dedy Prawirajaya Rian Hidayat Ridwan, Taupik Rizkiyadi, Dicky Roisah, Roisah Rojab, Aji Ahadun Rudy Sofian Sabrina, Hana Sahlan, H. Moh. Santa Yusuf Nasution SAUKANI, MHD AHYAR Setiawan , Rian Sherly Deastuti Silvia Julianti Sinaga, Shiva Anggreini Siregar , Ajis Paroji Siti Aisyah Situmeang, Pirmana Sri Achadi Nugraheni Sri Wahyuna Saragih Sukardi Sukardi Sulistyaningsih, Sulistyaningsih - Syahda, Arsyifa Nirmala Taufiq Akbar, Imam Taufiq Dwi Cahyono Taupik Ridwan Tirtasari, Coleta Palupi Tito Ramadhan, Muhammad Topan Trianto Utami, Farida Riza Vanessa Gaffar Wahyu Abdilah WAHYU NURJAYA WK Wahyudin Wahyudin WARDATUL HUSNA IRHAM Wiharko, Teguh Wiharko, Teguh Wiwik Handayani Yanwar Aryanggara Yasfiro Blesahangga Yesaya Pranadinata Yogi Triono Yolanda Ashary Zakwan Zuhdy, Mukhtar