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All Journal JURNAL SISTEM INFORMASI BISNIS JURNAL AKUNTANSI DAN AUDITING Jurnal Penelitian dan Pengembangan Sains dan Humaniora (JPPSH) Jurnal Akuntansi Multiparadigma Journal of Accounting and Investment MODUS-Jurnal Ekonomi dan Bisnis Jurnal Akuntansi dan Pajak Indonesian Journal of Sustainability Accounting and Management Spektra: Jurnal Fisika dan Aplikasinya Jurnal Nasional Komputasi dan Teknologi Informasi JIA (Jurnal Ilmiah Akuntansi) Jurnal Ilmiah Wahana Pendidikan Prima Abdika: Jurnal Pengabdian Masyarakat Jurnal Abdi Masyarakat Indonesia Transekonomika : Akuntansi, Bisnis dan Keuangan Annals of Human Resource Management Research JURNAL AGROINDUSTRI HALAL Jurnal Dinamika Akuntansi dan Bisnis (JDAB) Indonesian Journal of Sustainability Accounting and Management E-Jurnal Akuntansi E-Jurnal Ekonomi dan Bisnis Universitas Udayana
DODIK ARIYANTO
Fakultas Ekonomi Dan Bisnis, Universitas Udayana, Bali, Indonesia
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Neuroscience Physics Public Health Social Sciences Transportation Other

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Calibration of Dissolved Oxygen Sensors in IoT Systems for Water Quality Monitoring in Aquaculture Mindara, Gema Parasti; Sholihah, Walidatush; Novianty, Inna; Fathonah, Lathifunnisa; Marcelita, Faldiena; Siskandar, Ridwan; Ariyanto, Dodik; Widodo, Bayu; Setiawan, Aep; Firdaus, Naufal Rizqullah
Spektra: Jurnal Fisika dan Aplikasinya Vol. 10 No. 3 (2025): SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 10 Issue 3, December 2025
Publisher : Program Studi Fisika Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/SPEKTRA.103.06

Abstract

Dissolved Oxygen (DO) is an important parameter for maintaining water quality in aquaculture systems. The accuracy of DO sensors significantly affects the reliability of Internet of Things (IoT)-based monitoring systems. This study aimed to calibrate the DO sensor using a two-point calibration method and evaluate the accuracy of the sensor readings compared with those of a reference device (standard DO meter). A key novelty of this study lies in its multi-media calibration, performed directly on six distinct aquaculture water types, providing field-realistic validation conditions not commonly explored in previous studies. Furthermore, the accuracy of the calibrated sensor is evaluated quantitatively using MAE, RMSE, and percentage deviation to ensure rigorous performance assessment. The system was developed using an ESP32 microcontroller, DO sensor (SEN0237), DS18B20 temperature sensor, and ADS1115 ADC module. Testing was performed on six types of aquaculture water media and compared with a standard DO meter using a comparative approach. In total, n = 6 field measurement points (one stabilized reading per water medium) were used to compute MAE, RMSE, and percentage deviation. The comparison results showed that the calibrated sensor had high accuracy, with a Mean Absolute Error (MAE) of 0.1083 mg/L and a Root Mean Square Error (RMSE) of 0.2654 mg/L. Significant deviations occurred only in one type of water medium, whereas the other five showed results consistent with the reference device, indicating stable sensor readings. These findings confirm that proper calibration can improve the accuracy and reliability of IoT systems used for water-quality monitoring. Regular calibration is required to maintain the sensor performance, particularly for long-term use in dynamic aquaculture water environments.
Dashboard Web Real-Time untuk Monitoring Sortasi Biji Kopi Berbasis Computer Vision Caesar, Muhammad Rizky; Rahayu, Baracahya Panata Cendikia; Nugroho, Gesit Tri; Al-Attas, Ahmad Farrell Raafii Alaiyya; Marcelita, Faldiena; Novianty, Inna; Ariyanto, Dodik
Jurnal Nasional Komputasi dan Teknologi Informasi (JNKTI) Vol 8, No 6 (2025): Desember 2025
Publisher : Program Studi Teknik Komputer, Fakultas Teknik. Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jnkti.v8i6.10120

Abstract

Abstrak - Sortasi biji kopi pasca-sangrai merupakan tahapan krusial dalam quality control untuk menjamin konsistensi produk. Namun, proses manual rentan terhadap subjektivitas dan ketidakkonsistenan, khususnya bagi UMKM kopi dengan keterbatasan infrastruktur. Penelitian ini mengembangkan PiKopi, sistem monitoring sortasi terintegrasi dengan dashboard web untuk visualisasi dan pengambilan keputusan berbasis data. Sistem mengintegrasikan tiga komponen utama: (1) modul deteksi cacat berbasis Convolutional Neural Network (CNN) pada perangkat edge computing Raspberry Pi untuk identifikasi real-time, (2) backend API RESTful berbasis Flask dengan database PostgreSQL untuk manajemen data klasifikasi, dan (3) dashboard web responsif berbasis React.js untuk visualisasi data real-time. Arsitektur API-driven memisahkan frontend dan backend, memungkinkan akses monitoring dari berbagai perangkat tanpa instalasi aplikasi. Dashboard menampilkan statistik sortasi real-time, grafik distribusi kualitas, riwayat batch, dan log aktivitas dengan interface yang user-friendly. Model CNN mencapai akurasi deteksi 92% dengan sensitivity dan specificity yang seimbang. Hasil pengujian fungsional menunjukkan sistem mampu melakukan klasifikasi otomatis dan menyajikan data sortasi secara real-time kepada pengguna. Sistem ini memfasilitasi pengambilan keputusan berbasis data, meningkatkan konsistensi mutu produk, serta mengurangi ketergantungan pada inspeksi visual manual bagi pelaku UMKM kopi.Kata kunci: dashboard web; monitoring real-time; sortasi kopi pasca-sangrai; quality control; arsitektur API-driven; Abstract - Post-roasting coffee bean sorting is a crucial stage in quality control to ensure product consistency. However, manual sorting processes are prone to operator subjectivity and inconsistency, particularly for small and medium enterprises (SMEs) with limited infrastructure. This research develops PiKopi, an integrated coffee sorting monitoring system with a web dashboard for visualization and data-driven decision making. The system integrates three main components: (1) a defect detection module based on Convolutional Neural Network (CNN) on Raspberry Pi edge computing devices for real-time identification, (2) a RESTful API backend based on Flask with PostgreSQL database for classification data management, and (3) a responsive web dashboard based on React.js for real-time data visualization. The API-driven architecture separates frontend and backend, enabling monitoring access from various devices without application installation. The dashboard displays real-time sorting statistics, quality distribution charts, batch history, and activity logs with a user-friendly interface. The CNN model achieves detection accuracy of 92% with balanced sensitivity and specificity. Functional testing results demonstrate that the system successfully performs automated classification and presents real-time sorting data to users. This system facilitates data-driven decision making, improves product quality consistency, and reduces reliance on manual visual inspection for coffee SMEs. Keywords: web dashboard; real-time monitoring; post-roast coffee sorting; quality control; API-driven architecture;
ANALYSIS OF FINANCIAL PERFORMANCE AND COMPANY SHARES BEFORE AND AFTER SEASONED EQUITY OFFERINGS Susilo, Bintang Arhya Wisesha; Ariyanto, Dodik
TRANSEKONOMIKA: AKUNTANSI, BISNIS DAN KEUANGAN Vol. 4 No. 6 (2024): November 2024
Publisher : Transpublika Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55047/transekonomika.v4i6.712

Abstract

Seasoned Equity Offerings (SEO) is a company strategy to increase capital by issuing new shares to existing investors. The goal of this study is to evaluate the financial success of the corporation prior to and following search engine optimization (SEO) by examining indicators such as current ratio, debt to equity ratio, return on assets, price to book value, and stock returns. This research uses secondary data from 76 companies listed on the Indonesia Stock Exchange (BEI) that carried out SEO in the 2017-2021 period. Data were analyzed using descriptive statistics, the Kolmogorov-Smirnov normality test and the Wilcoxon Signed Rank Test to see notable differences between financial performance and stock performance before and after SEO. The research results show that there are significant differences in the proxies for current ratio, dept to equity ratio, price to book value and stock returns after SEO, but there are no significant differences in the proxies for return on assets.
Mapping Sustainability Performance in the Hospitality Industry: A Systematic Literature Review and Future Research Agenda Miati, Ni Luh Putu Mita; Ariyanto, Dodik; Widanaputra, Anak Agung Gde Putu; Putri, I Gusti Ayu Made Asri Dwija
Annals of Human Resource Management Research Vol. 6 No. 1 (2026): March
Publisher : Goodwood Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35912/ahrmr.v6i1.3038

Abstract

Purpose: This study aims to identify the main indicators, influencing variables, analytical techniques, and regional trends of sustainability performance in the hospitality industry. Methodology: This study adopts a Systematic Literature Review (SLR) method using the Scopus database as the primary source. Articles were searched through Boolean keyword techniques, screened with PRISMA guidelines, and analysed using descriptive synthesis to map indicators, variables, and methods applied in prior studies. Results/Findings: The review shows that environmental, economic, and social performance remain the most dominant indicators, whereas cultural sustainability is rarely addressed. Green Human Resource Management (GHRM), Corporate Social Responsibility (CSR), and environmental management are the most studied variables. In contrast, green intellectual capital and spiritual capital have not been examined in the hospitality sector, although they show potential relevance. SEM-PLS is identified as the most frequently applied analytical tool, and most studies are concentrated in developing countries. Conclusions: The findings emphasize the need for further research into cultural sustainability and the inclusion of intellectual and spiritual capital in hospitality sustainability practices. The dominance of environmental, economic, and social factors suggests that a broader, more integrated approach is necessary. Limitations: This review is limited to English-language articles indexed in Scopus and excludes non-English or unpublished studies. Contributions: This study makes both theoretical and practical contributions. Theoretically, it expands sustainability research in hospitality by integrating knowledge-based and value-based resources. Practically, it guides hotel managers and policymakers, especially in culturally rich destinations, to incorporate cultural heritage, intellectual capital, and spiritual values into sustainability practices.
Exploring How Professional Skepticism and Religiosity Influence Audit Quality Through Internal and External Traits Ni Putu Danis Amara Santi; Dodik Ariyanto
E-Jurnal Akuntansi Vol. 36 No. 2 (2026)
Publisher : Fakultas Ekonomi dan Bisnis Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/EJA.2026.v36.i02.p02

Abstract

Users of financial statements are more likely to trust that the reports are free from misstatements and manipulation when audit quality is high. This research aims to examine the role of professional skepticism and religiosity in moderating the effects of independence and time budget pressure on audit quality at public accounting firms in Bali Province. Data were collected using questionnaires distributed to 74 auditors employed at these firms, selected through a saturated sampling approach. The data analysis was conducted using the PLS-SEM approach with SmartPLS software. The results of the bootstrapping analysis, or hypothesis testing, indicate that independence positively influences audit quality, while time budget pressure negatively affects it. The moderation effect test reveals that professional skepticism strengthens the negative impact of time budget pressure on audit quality but does not moderate the effect of independence. On the other hand, religiosity does not moderate the influence of either independence or time budget pressure.
Pemberdayaan Masyarakat melalui Penerapan Pirolisis Berbasis Internet of Things untuk Peningkatan Kapasitas Pengelolaan Sampah Plastik di Kelurahan Mulyaharja, Bogor Fathonah, Lathifunnisa; Novianty, Inna; Parasti, Gema; Ariyanto, Dodik; Marcelita, Faldiena; Siskandar, Ridwan; Widodo, Bayu; Irmansyah, Irmansyah; Taya, Liora; Nur Azizah, Laila
Jurnal Abdi Masyarakat Indonesia Vol 6 No 1 (2026): JAMSI - Januari 2026
Publisher : CV Firmos

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54082/jamsi.2496

Abstract

Kelurahan Mulyaharja, Kota Bogor, menghadapi permasalahan tingginya volume sampah plastik rumah tangga yang belum terkelola dengan baik. Sebagian sampah dibakar atau dibuang ke lingkungan sekitar, sehingga menimbulkan pencemaran dan risiko kesehatan masyarakat. Program pengabdian ini menerapkan teknologi pirolisis berbasis Internet of Things (IoT) untuk mengonversi sampah plastik menjadi bahan bakar alternatif melalui pendekatan participatory community-based implementation. Metode kegiatan meliputi analisis kebutuhan, perancangan dan pembuatan alat, pelatihan, serta pendampingan operasional bagi warga Kelurahan Mulyaharja. Hasil pengabdian menunjukkan bahwa prototipe pirolisis berbasis IoT berhasil beroperasi stabil pada skala komunitas. Sebanyak lebih dari 70% warga peserta mampu mengoperasikan alat secara mandiri sesuai prosedur keselamatan kerja. Hasil survei menunjukkan 76% warga sangat peduli terhadap lingkungan, dan 86% menyatakan kegiatan ini memberikan manfaat nyata. Selain itu, terjadi penurunan praktik pembakaran dan pembuangan sampah ke sungai, serta mulai terbentuk kelompok pengelola alat berbasis masyarakat. Produk minyak hasil pirolisis telah dimanfaatkan sebagai bahan bakar alternatif untuk peralatan sederhana. Program ini memperkuat kapasitas masyarakat dalam pengelolaan sampah, mendukung keberlanjutan teknologi berbasis komunitas, serta mendorong koordinasi antara warga, pengurus RW, dan kelurahan.
Co-Authors Aditya Pratama Al-Attas, Ahmad Farrell Raafii Alaiyya Anak Agung Gde Putu Widanaputra Anak Agung Ngurah Bagus Dwirandra Anisa Virdawati Amara Anita Suryani ARDANI MUTIA JATI Arthur Sitanggang Aulia Ayu Paramadina Ayunia Gina T. Marjana Bagas Haris Prasetyo BAYU WIDODO Caesar, Muhammad Rizky Comera Arihatsu Daniel Eka Prasetya Delfitriani Dewa Ayu Rahayu Widasari Dewa Ngakan Gede Galang Manacika Dewangga, Anak Agung Bagus Dharma Putra Dewi, Ayu Aryista Dewi, Luh Gede Krisna Dzulfiqar, Akram EKA ARDHANI SISDYANI Fathonah, Lathifunnisa Fina Uzwatania Firdaus, Naufal Rizqullah Gede Juliarsa Gede Surya Pratama Gede Teguh Prasetya Muttiwijaya Gusti Ayu Yuliani Purnamasari Hardi Hermawan Prasetya Hasibuan, Henny Triyana Hendry Heryangi Henny Triyana Hasibuan Herkulanus Bambang Suprasto I Dewa Gede Dharma Suputra I Gde Ary Wirajaya I Gusti Ayu Made Asri Dwija Putri I Gusti Made Jhista Wiguna I Gusti Ngurah Agung Suaryana I Ketut Sujana I Made Dwi Budiana Penindra I Made Sukartha I Nyoman Wijana Asmara Putra I Putu Sudana I Wayan Aditya Paramarta I Wayan Eka Suputra Yasa I Wayan Gde Yogiswara Darma Putra I Wayan Suartana Irmansyah . Jordan Rudolf Daniel Rondonuwu Julia Yurinne Wahyudi Jumariati, Ni Kadek Ayu Kadek Arya Adi Putra Kadek Meira Pertiwi Kadek Shintya Rahayu Dewi Damayanthi Katharina Yuneti Luh Ayu Meliani Luh Putri Swandewi Made Aris Wardana Made Gede Wirakusuma Made Oka Candra Andreana Madek Jeani Purnama Marcelita, Faldiena MARIA M. RATNA SARI Maria Meiatrix Ratna Sari Maulana, Iqhfar Mindara, Gema Parasti Ni Kadek Ayu Asri Anggreni Ni Kadek Ayu Suartini Ni Kadek Sri Udayanti Ni Kadek Suparmini Ni Ketut Ayu Purnamaningsih Ni Ketut Rasmini Ni Komang Indira Trisnayanti Ni Komang Trijayanti Ni Luh Ayu Linda Diana Sari Ni Luh Made Sri Kusmira Ni Luh Putu Ika Satia Devi Ni Luh Putu Ita Nopayanti Ni Luh Putu Mita Miati, Ni Luh Putu Mita Ni Luh Putu Tika Widianti Ni Made Asti Aksari, Ni Made Asti Ni Made Ayu Maya Puspita Ni Made Dwi Ratnadi Ni Made Somo Misutari Ni Made Wilantari Ni Made Wirya Sri Shinta Paramita Ni Putu Ari Puryanti Dewi Ni Putu Danis Amara Santi Ni Putu Diah Pratiwi Ni Putu Intan Puspita Dewi Ni Putu Shinta Oktaviani Ni Putu Sri Harta Mimba Ni Wayan Ade Suyanti Ni Wayan Ardyanti Ni Wayan Dewi Mas Yogi Pertiwi Ni Wayan Radha Maharseni Novianty, Inna Nugroho, Gesit Tri Nur Azizah, Laila Nyoman Agus Putrawan Nyoman Tryadi Kusuma Yudha Oki Meke Frank Parasti, Gema Pramita, I Gusti Ayu Putu Inten Nanda Putu Eka Jayanti Putu Parta Yadnya Rahayu, Baracahya Panata Cendikia Ridwan Siskandar Setiawan, Aep Sholihah, Walidatush Siti Roviah Suci Arini SUHARTINI SUHARTINI Suprasto, Herkulanus Bambang Susilo, Bintang Arhya Wisesha Tania Magetsu Putri Taya, Liora Vebyeta Listiani Wangsa, I Wayan Murlanda Widyari, Nyoman Yudha Astriayu Zeykisan Perangin-angin