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All Journal IAES International Journal of Robotics and Automation (IJRA) Jurnal Informatika Jurnal Teknologi Informasi dan Ilmu Komputer International Journal of Advances in Intelligent Informatics Jurnal Ilmiah Dinamika Rekayasa (DINAREK) Jurnal Teknologi dan Sistem Komputer JTT (Jurnal Teknologi Terpadu) Knowledge Engineering and Data Science Indonesian Journal of Artificial Intelligence and Data Mining Prosiding SAKTI (Seminar Ilmu Komputer dan Teknologi Informasi) Journal of Robotics and Control (JRC) Science in Information Technology Letters Signal and Image Processing Letters Smatika Jurnal : STIKI Informatika Jurnal
Achmad Fanany Onnilita Gaffar
Politeknik Negeri Samarinda
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Water level control of small-scale recirculating aquaculture system with protein skimmer using fuzzy logic controller Mulyanto, Mulyanto; Suprapty, Bedi; Gaffar, Achmad Fanany Onnilita; Sumadi, Muhammad Taufiq
IAES International Journal of Robotics and Automation (IJRA) Vol 12, No 3: September 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijra.v12i3.pp300-314

Abstract

The recirculating aquaculture system (RAS) is a land-based aquaculture facility, either open-air or indoors, that minimizes water consumption by filtering, adapting, and reusing water. Solid organic matter from fish waste and food waste directly becomes waste that needs to be eliminated because it is a source of increasing total ammonia nitrogen (TAN), total suspended solids (TSS), total dissolved solids (TDS), and also has an impact on reducing dissolved oxygen (DO). RAS requires a water level control system so the fish tank does not experience water shortages or floods, disrupting the aquatic aquaculture ecosystem. In this study, small-scale RAS is modeled using a 3-coupled tanks system approach with a tank configuration that follows the most straightforward RAS water recirculation process (fish tank, mechanic filter, biofilter). Clean water from the reservoir flows into the fish tank through a protein skimmer. This study applies the fuzzy logic controller (FLC) to control the water level in the protein skimmer and biofilter tanks by controlling the position of several valves where the placement positions of the valves have been determined according to system requirements. The study results show that the tuned single-input FLC has the best average output response characteristics with ts=50, h1ss=49.98, ess=0.02 in protein skimmer and ts=4700, h1ss=39.75, ess=0.25 in the tank system.
Optimasi Steganografi Berbasis Citra Digital Menggunakan Modifikasi Bit Lyntom Irfan D; Arief Bramanto Wicaksono Putra; Achmad Fanany Onnilita Gaffar
SMATIKA JURNAL : STIKI Informatika Jurnal Vol 10 No 02 (2020): SMATIKA Jurnal : STIKI Informatika Jurnal
Publisher : LPPM UBHINUS MALANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32664/smatika.v10i02.456

Abstract

Security and confidentiality are very important aspects for users of information technology. To avoid messages that are sent falling on unauthorized parties and news occurs on the message. There are many ways that can be done for housing data or messages to be sent. One of them is steganography. Steganography is a technique of inserting messages into other media, so that the message will be hidden and what will appear is other media to insert messages. Steganography requires a message and cover. Cover is the medium used to enter messages. This study aims to include a message in the form of an image on the cover in the form of an image in JPG and PNG formats. In this study, using the Least Significant Bit (LSB) method as the insertion method and modification method to optimize the LSB performance in inserting messages of 1 to 4 bits. From the results of research on the insertion with cover images and message images using PNG format based on information and PSNR shows the best number of bits with 1-bit message insertion while in the process of extracting message images from cover images that have gone through the insertion process using PNG format based on cooperation and MAPE shows best bit count with 4 bit message insertion. Decrease, the more bits that are inserted, the quality cover will decrease but the extraction result is the higher the quality increase in the return message.
Co-Authors Agusma Wajiansyah Agusma Wajiansyah Agusma Wajiansyah, Agusma Aji Prasetya Wibawa Alfiansyah, M Nur Andri Pranolo Anggri Sartika Wiguna Armianti, Rizka Indah Arrosied, Harun Diah Kumalasari Didi Susilo Budi Utomo Gaffar, Emmilya Umma Aziza Hargiani, Fransisca Xaveria Haviluddin Haviluddin Irwan Gani Karmita, Sisie Lyntom Irfan D Malani, Rheo Mirza Rafdi Rosada Muhammad Bagus Bintang Timur Muhammad Soleh Muhammad Taufiq Sumadi Mulyanto Mulyanto Mulyanto Mulyanto Pratiwi, Adinda Putri Purba, Muren Fiatra Denata Purnawansyah Purnawansyah Rayner Alfred Rihartanto Rihartanto Riris Kurnia Ningsih Roman Voliansky RR. Ella Evrita Hestiandari Salsabila, Unik Hanifah Saputra, Arief Bramanto Wicaksono Sari, Risna Julia Suprapty, Bedi Supriadi Supriadi