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All Journal International Journal of Electrical and Computer Engineering JUTI: Jurnal Ilmiah Teknologi Informasi Fakultas Pertanian ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Info-Teknik Journal of Mechanical Engineering Science and Technology JOIV : International Journal on Informatics Visualization Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Jurnal Riset Komunikasi JAVA Journal of Electrical and Electronics Engineering Enrichment : Journal of Management Journal of Energy and Electrical Engineering (JEEE) Reswara: Jurnal Pengabdian Kepada Masyarakat JAREE (Journal on Advanced Research in Electrical Engineering) JASATHP: Jurnal Sains dan Teknologi Hasil Pertanian Jurnal Media dan Komunikasi Indonesia Hexatech: Jurnal Ilmiah Teknik Sewagati Jurnal Riset Multidisiplin dan Inovasi Teknologi Jurnal Communio: Jurnal Jurusan Ilmu Komunikasi Jurnal Komunikasi Indonesia Jurnal Agribest Mahardika Adiwidia
Wirawan Wirawan
Institut Teknologi Sepuluh Nopember
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Fortifikasi Tepung Ikan Teri Nasi (Stolephorus Sp.) pada Bakso Ayam dengan Penggunaan Kombinasi Tepung Diniarti, Yulita Oktavia; Wahyu Mushollaeni, Wahyu; Wirawan, Wirawan
JASATHP: Jurnal Sains dan Teknologi Hasil Pertanian Vol 5 No 1 (2025): Mei
Publisher : Program Studi Teknologi Hasil Pertanian Fakultas Sains dan Teknologi Hasil Pertanian Universitas Muhammadiyah Sidenreng Rappang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55678/jasathp.v5i1.1847

Abstract

Pemanfaatan ikan teri sampai saat ini masih terbatas pada usaha pengasinan dan dikonsumsi secara langsung. Ikan teri dalam bentuk tepung dapat digunakan sebagai bahan fortifikasi nutrisi pada produk pangan lainnya, dikarenakan kadar kalsiumnya yang cukup tinggi (500 mg/100 g). Salah satu produk pangan yang umum dikonsumsi oleh masyarakat dan berpotensi untuk dapat ditambahkan tepung ikan teri adalah bakso. Oleh karena itu, dalam penelitian ini bertujuan untuk mendapatkan formulasi terbaik dari bakso ayam yang menggunakan campuran tepung ikan teri, tepung tapioka, tepung mocaf, atau tepung talas yang memiliki kualitas terbaik. Penelitian menggunakan Rancangan Acak Kelompok dengan satu faktor. Perlakuan terbaik untuk menghasilkan bakso ayam yang dibuat dengan kombinasi bahan tepung ikan teri dan tepung lainnya sebagai bahan pengisi adalah formulasi tepung tapioka 30% dengan tepung ikan teri 20%. Bakso tersebut memiliki kadar kalsium 214,01 ppm; kadar tekstur 13,93 N; Kadar warna 21,94 dan rata-rata nilai kesukaan panelis adalah suka (Tekstur 2,7; rasa 2,86; warna 2,78; dan aroma 2,67).
Pengaruh Kombinasi Tapioka dan Bahan Pengenyal dalam Pembuatan Galantin Ikan Kembung Rendah Limbah Lasmi Latu, Priska Sulfiaster; Mushollaeni, Wahyu; Wirawan, Wirawan
JASATHP: Jurnal Sains dan Teknologi Hasil Pertanian Vol 5 No 1 (2025): Mei
Publisher : Program Studi Teknologi Hasil Pertanian Fakultas Sains dan Teknologi Hasil Pertanian Universitas Muhammadiyah Sidenreng Rappang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55678/jasathp.v5i1.1851

Abstract

East Manggarai in East Nusa Tenggara Province has rich marine resources and abundant productivity. One of the marine commodities is mackerel (Rastrelliger kanagurta). Currently, especially in East Nusa Tenggara, mackerel is primarily used as a side dish and processed into local food products. However, given its complete nutritional content, mackerel has the potential to be developed into a raw material for healthy food products that benefit human health. This research aims to determine the best treatment for the use of firming agents and their concentrations in the production of mackerel fish galantine. This study used a Randomized Block Design (RBD) with two factors: type of firming agent (CMC, carrageenan, agar) and concentration (1%, 2%, 3%). The tests conducted included calcium content, texture, and L* value (brightness) of the galantine. The best treatment was the use of CMC as a firming agent at a concentration of 3%. This formula produced mackerel fish galantine with a calcium content of 313.40 ppm, texture value of 12.20 N, brightness value (L) of 18.06, and an average preference test result of "like" (texture 2.68, taste 2.63, color 2.60, and aroma 2.73).
Simulation of Magnet Thickness and Angle of Attack on Magnetic Force for Magnetic Turbine Design Pratama, Eka; Wirawan, Wirawan
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 9, No 1 (2025)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v9i12025p258

Abstract

Electric motors play a vital role across various industries. As their electricity demand grows, improving efficiency has become a priority. One area of innovation involves the use of magnetic strips for improving performance. This study aims to determine the magnet thickness and the angle of attack position in producing the strongest repulsive force in the magnetic turbine. The study used a simulation using SOLIDWORKS and EMS software, applying neodymium N52 magnets with varying sizes and angles of attack. The results indicate that the most efficient magnetic turbine configuration utilizes rotor and stator magnets with dimensions of Ø10 × 20 mm and an angle of attack of 44°. Magnet thickness influences the magnetic force: Thicker magnets generate stronger repulsive forces due to higher stored magnetic energy, whereas thinner magnets result in weaker forces due to reduced magnetization volume. The simulation of two opposing magnets confirmed that the configuration of Ø10 × 20 mm at a 44° angle of attack produced the highest magnetic flux density of 2.277 × 10⁻¹ Tesla. Furthermore, the 44° angle between rotor and stator yielded a more stable magnetic flux distribution, effectively minimizing cogging torque, that a common cause of undesirable fluctuations in rotor motion. This angle can be recommended for achieving smoother and more efficient turbine operation.
Impact of Print Speed and Nozzle Temperature on Tensile Strength of 3D Printed ABS for Permanent Magnet Turbine Systems Wirawan, Wirawan; Firmansyah, Hilmi Iman; Adiwidodo, Satworo; Mustapa, Mohammad Sukri
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 9, No 1 (2025)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v9i12025p090

Abstract

Operational parameters must be integrated into turbine systems' main components, which are determined by turbine systems' functional requirements. The need for producing component designs more effectively raises the possibility of using additive manufacturing. The study focuses on the optimization of the mechanical properties of the principal components of magnetic turbines manufactured with 3D printers using Acrylonitrile Butadiene Styrene (ABS), by changing the temperature and speed of the nozzle. The approach consisted of modeling a standard test piece in CAD software and producing ABS-based test pieces using a 3D printer with print speeds of 50, 70, 90, and 110 mm/s and temperatures of 230, 240, 250, and 260 °C. The tensile properties of the samples were determined according to ASTM D638-14 Type I, and the results reveal a consistently greater tensile strength for the parts with high nozzle temperatures of approximately 250 °C and lower print speeds of 50 and 70 mm/s. At higher speeds of 90 and 110 mm/s, though the nozzle temperature has little effect on tensile strength, suggesting that the effect of other parameters is more significant. Whatever the print speed, at higher nozzle temperature (250℃), average tensile strength was improved. Control of nozzle temperature is paramount in increasing tensile strength in the 3D printing process performed at low speeds. Also, the average tensile strength is consistent and normalized. For all print speed values, a 250℃ nozzle produces consistently higher average tensile strength than a 235℃ nozzle. Analysed the parameters for print speed and nozzle temperature, providing optimal results for stronger and more reliable parts for use in turbines.
Material Flow Analysis and Carbon Footprint Assessment of Rice Husk Biochar Production Using Slow and Fast Pyrolysis Methods Newol, Kristina Yaneti; Sasongko, Pramono; Wirawan, Wirawan
Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Vol 10, No 1 (2025): EDISI MARET 2025
Publisher : Universitas Tribhuwana Tunggadewi Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/rekabuana.v10i1.6818

Abstract

The utilization of rice husk in Indonesia concentrate to low economic value products, while this biomass waste has significant potential for various higher-value applications. This study aims to analyze material flow (Material Flow Analysis) and calculate the carbon footprint of the rice husk biochar production process using pyrolysis methods. The pyrolysis techniques employed were slow pyrolysis and fast pyrolysis at the Renewable Energy Laboratory of Tribhuwana Tunggadewi University. This study shows that the slow pyrolysis method with 30.05 kg of rice husk input and 0.6 kg of water produces 38.2% biochar yield, while fast pyrolysis with 0.5 kg of rice husk input without water produces a yield of 40.6%. Carbon trail analysis revealed that in slow pyrolysis, of the total carbon input 0.971 kg only 0.674 kg identified in the final product (BioChar 0.410 kg, Bio-Oil 0.250 kg, gas 0.014 kg), while fast pyrolysis of the total carbon input of 3.003 kg produces 1,1532 kg carbon in the final product (biochar 0.415 kg, bio-il 0.5656 kg, gas 0.1726 kg), with electrical energy consumption that produces emissions of 1,983 kgCO2e. Pyrolysis technology has proven to convert rice husks into high -value BioChar, with fast pyrolysis shows a higher yield and better process efficiency without the addition of water. Although fast pyrolysis produces higher emissions, slow pyrolysis with the use of residual gas is more recommended for regions with limited electricity networks.
A Stress Level Monitoring System for Rescue Teams During Search and Rescue Operations Based on Electroencephalography hariyadi, dedy; wibawa, adhi dharma; wirawan, wirawan
JAREE (Journal on Advanced Research in Electrical Engineering) Vol 9, No 2 (2025): July
Publisher : Department of Electrical Engineering ITS and FORTEI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/jaree.v9i2.437

Abstract

Search and Rescue (SAR) officers work in high-risk conditions that require physical and mental resilience. Prolonged stress can affect the performance and success of SAR operations. This study evaluates the effectiveness of Electroencephalography (EEG) coherence analysis as a method for monitoring stress in SAR personnel. Using the OpenBCI EEG device and electrodes in the F3 and F4 areas, the brain activity of SAR personnel was recorded in two conditions, office activity (baseline) and rescue operations (SAR condition). The data collection for this research involved the same participants in both baseline and SAR operation conditions, resulting in 30 raw EEG data for further analysis. Data collection on operational conditions was carried out while the rescue officers conducted a search and rescue operation for a capsized boat in the Bengawan Solo River, Ngadirejo Village, Tuban Regency. Data analyzed based on coherence values obtained through the Power Spectral Density (PSD) features of alpha, beta, and gamma sub-band to detect changes related to stress levels. The results showed an increase in coherence in the alpha sub-band by 85.5%, beta sub-band by 92.9%, and gamma sub-band by up to 94.9% during moderate stress conditions, reflecting increased attention, alertness, and intensive information processing required in emergency situations. These findings indicate that EEG coherence analysis can be an effective tool for monitoring stress in SAR personnel in real-time.
Analisis ketebalan layer dan kecepatan Nozzle Produk 3d Printing berbahan Acrylonitrile Butadiene Styrene (Abs) terhadap kekuatan tarik Wirawan, Wirawan; Pratama, Novan Sandy
Hexatech: Jurnal Ilmiah Teknik Vol. 2 No. 2 (2023): Hexatech: Jurnal Ilmiah Teknik
Publisher : ARKA INSTITUTE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55904/hexatech.v2i2.898

Abstract

Salah satu teknologi yang sedang berkembang yaitu teknologi 3D Printer dengan mesin untuk pembuatan produk bisa dilakukan dengan mudah, cepat dan mendetail. Tujuan penelitian untuk mengetahui pengaruh ketebalan Layer, kecepatan Nozzle, maupun interaksi antara ketebalan Layer dengan kecepatan Nozzle terhadap kekuatan tarik hasil 3D printing. Metode penelitian spesimen dibuat dari bahan Plastik jenis ABS (Acrylonitrile Butadiene Styrene), spesimen dibuat dengan standar ukuran ASTM-D 368 tipe 1. Analisis data pengujian menggunakan pendekatan Anova Factorial. Hasil penelitian ketebalan Layer berpengaruh terhadap kekuatan tarik yang dihasilkan plastik jenis ABS, sedangkan kecepatan nozzle tidak berpengaruh terhadap kekuatan tarik yang dihasilkan plastik jenis ABS, dan Interaksi antara ketebalan layer dan kecepatan nozzle tidak berpengaruh terhadap kekuatan tarik yang dihasilkan plastik jenis ABS.
Meditasi dari Depan Layar: Etnografi Digital pada Komunitas Meditasi Online Wirawan, Wirawan
Jurnal Media dan Komunikasi Indonesia Vol 6, No 2 (2025): SEPTEMBER 2025
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jmki.108128

Abstract

This study examines how traditional forms of religious authority are undergoing change alongside the increasing use of digital media in religious practices. Using a digital ethnographic method, the research was conducted on an online meditation community guided by Samanera Abhisarano from December 2021 to July 2022. Participant observation was carried out online through a WhatsApp group and Zoom meditation sessions, as well as on-site at Vihara Dhammadipa Arama, where Samanera Abhisarano leads meditation remotely. In-depth interviews were conducted with the spiritual guide and five community members. Referring to Campbell’s (2007) framework of religious authority, the study reveals that traditional forms of authority tend to be preserved, although in practice they undergo several adaptations. These findings support previous studies suggesting that, in certain contexts, the adoption of digital media does not weaken traditional religious authority, but rather reinforces it, particularly when it is managed by religious leaders. This research contributes to the ongoing discourse on media and religion from the perspective of a Buddhist community in Indonesia, where the majority of the population is Muslim.
Co-Authors A. Sjamsjiar Rachman Achmad Affandi Adhi Dharma Wibawa, Adhi Dharma Adi Suprijanto Akhlis Rizza, Muhammad Boedinoegroho, Hany Bukit, Alexander Victor Busaeri, Nundang Dani, Agus Diniarti, Yulita Oktavia Editya Hendrawarman Endang Widjiati Endroyono Endroyono Etik Puspitasari, Etik Fathur Zaini Rachman Firmansyah, Mohammad Rifqi Gamantyo Hendrantoro Gatot Kusrahardjo Geofakta Razali Hamid Alhamid, Muhammad Syerif Hedinarta, Hedinarta Hendra Kusuma Hilmi Iman Firmansyah Kgs Ahmadi Lasmi Latu, Priska Sulfiaster Lemos, Jose Migunani, Mitariza Miptahudin, Rd Apip Mustapa, Mohammad Sukri Newol, Kristina Yaneti Nurul Hiron, Nurul Paman, Saverius Pamungkas, Johan Pramono Sasongko Prasetiyono Hari Mukti Pratama, Eka Pratama, Novan Sandy Qadrifa, Sabrina Sofi Rading, Yohana Vantiana Satworo Adiwidodo Setijadi, Eko SRI RAHAYU Sudirman Sudirman Sukandar, Rudi Suwadi Suwadi Suyanta, Suyanto Syamsul Hadi Titiek Suryani Wahyu Mushollaeni Wahyu Mushollaeni, Wahyu