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All Journal Indonesian Journal of Geography Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics POSITRON Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Jurnal Sains dan Teknologi Komunikasi Fisika Indonesia TELKOMNIKA (Telecommunication Computing Electronics and Control) Indonesian Journal of Electrical Engineering and Informatics (IJEEI) Journal of Aceh Physics Society Jurnal Litbang Industri JOURNAL ONLINE OF PHYSICS Jurnal Fisika FLUX Proceeding of the Electrical Engineering Computer Science and Informatics Jurnal Ilmiah Pertanian JMPM (Jurnal Material dan Proses Manufaktur) Jurnal Pengabdian UntukMu NegeRI Journal of Research and Technology JURNAL PHOTON Indonesian Physical Review Science, Technology, and Communication Journal
Romi Fadli Syahputra
Department Of Physics, Faculty Of Mathematics, Natural Sciences & Health, Universitas Muhammadiyah Riau, Pekanbaru, Indonesia
Religion Agriculture, Biological Sciences & Forestry Astronomy Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Nursing Physics Social Sciences

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Journal : Science, Technology, and Communication Journal

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Negative refractive index anomaly characteristics of SRR hexagonal array metamaterials Soerbakti, Yan; Gamal, Moh Danil Hendry; Zamri, Zamri; Defrianto, Defrianto; Syahputra, Romi Fadli
Science, Technology and Communication Journal Vol. 4 No. 2 (2024): SINTECHCOM Journal (February 2024)
Publisher : Lembaga Studi Pendidikan and Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v4i2.261

Abstract

Metamaterials possess distinct characteristics that make them very suitable for scientific investigation. This phenomenon's hallmark has left scientists perplexed and skeptical. Researchers have conducted numerous studies to explore the composition of one or more metamaterials. This project focused on the development of a linear-sequence metamaterial. Next, we examined the alterations in the optical characteristics of the metamaterial. The utilized frequency range is 0 to 9 GHz. We construct the hexagonal split ring resonance (SRR) metamaterial with a radius of 2.9 mm, consisting of one to four hexagonal SRRs. The findings revealed that the SRR hexagonal metamaterial structure had the highest negative refractive index value, reaching -9.33 in combinations of four hexagonal SRRs.
Utilization of phase changing materials as air conditioning alternatives in eco-green systems Hikma, Nurfi; Fitri, Ade; Izzah, Ramy Fitrah; Syahputra, Romi Fadli; Zulkarnain, Zulkarnain
Science, Technology and Communication Journal Vol. 2 No. 3 (2022): SINTECHCOM Journal (June 2022)
Publisher : Lembaga Studi Pendidikan and Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v2i3.5

Abstract

Prevention of global warming due to high energy consumption and greenhouse gases is a priority for local governments, especially in Pekanbaru City, Indonesia. The use of air conditioning has become a community habit of reducing the temperature of a hot room, but unexpected things can have a negative impact on the surrounding environment. Therefore, this paper provides a simple new idea by using a phase change material (PCM) in the form of an eco-green air cooler system (EGACY) application as a free and passive cooler. EGACY consists of salt hydrates, PCM boxes, iron pipes, fans, solar panels, and batteries as the main components and several other supporting components. The EGACY system works by absorbing cold air and stored by the PCM at night through pipes connected to the outside, then expelled during the day through indoor ceiling vents. The resulting temperature in the room can be controlled at a comfortable temperature from 25°C to 28°C. EGACY is believed to be able to provide the potential for environmentally friendly technology with renewable energy sources.
Design and testing of circular metamaterial-based salinity sensors Rezki, Yona Purnama; Syahputra, Romi Fadli; Ginting, Delovita
Science, Technology and Communication Journal Vol. 3 No. 3 (2023): SINTECHCOM Journal (June 2023)
Publisher : Lembaga Studi Pendidikan and Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v3i3.234

Abstract

The salinity sensor is a salt level detection tool designed based on the electrical properties of water. The salinity sensor consists of two electrodes that are dipped in water where the sensor is given a potential difference so that electrons flow in the sensor-building circuit. The electrode is connected to a variable resistor which forms a voltage divider circuit connection. This research aims to design a metamaterial (MTM) sensor to detect salt levels in the 100 – 900 MHz range and investigate the performance of MTM sensors for detecting salt levels. The working MTM sensor design has been successfully designed and tested, where the MTM sensor is also able to differentiate frequency values from samples with different salt levels.
Co-Authors -, Yeeri Badrun Adila Fitri Yani Yani Ahmad Nurhuda Aisah, Nurul Andika Thoibah Andri Saputra Anggraini, Wresni Anggreani, Selvia Anita, Sofia Ariyani Ayu Risti Candini Basdyo, Doni Candini, Ayu Risti Dadang Syarif Sihabudin Sahid Dalimunthe, Latipa Hannum Debi Yana Dedi Irawan Dedi Irawan Defrianto Defrianto Delovita Ginting, Delovita Dino Yanuardi Doni Basdyo Elsie Erman Taer Fitra Perdana Fitri, Ade Haryana bin Mohd Hairi Haryana Hairi Haryana Hairi Hikma, Nurfi Husna, Ropiqotul Intan Kusmawati Ismail, Noor Maizura Ismaliyah, Dhea ISRAWATI HARAHAP Iwantono Iwan Barnawi Izzah, Ramy Fitrah Khaikal Ramadhan Kusmawati, Intan Lailatul Munawaroh Laras Sita Widara Leli Nurhamiyah Lubis, Viviana Mesra Sania Moh Danil Hendry Gamal Mubarak Mubarak Neneng Fitrya Nopripa Herlina Novia Gesriantuti Nurhamiyah, Leli Okfalisa Okfalisa Okfalisa Okfalisa Okfalisa Okfalisa Okfalisa Okfalisa Okfalisa Okfalisa Okfalisa Okfalisa Okfalisa, Okfalisa Piza Piza Piza, Piza Prastiwi, Adila Pramudiah Rezki, Yona Purnama Riad Syech Ridho Kurniawan Rifardi Rina Amelia Rismadani Haryanti Roby Ikhsan Ropiqotul Husna Ros Meri S. P. Dewi Saktioto Saktioto Sasmita Shabri Putra Wirman Siti Hardiyanti Soerbakti, Yan Sri Fitria Retnawaty Sri Mulyani Syamsudhuha Syamsudhuha Tri Adelia Vepy Asyana Viviana Lubis Viviana Lubis Wahyu Candra Welly, Indah Sri wirdatul jannah Wresni Anggraini Wulandari, Surya Yan Soerbakti Yan Soerbakti Yan Soerbakti Yana, Debi Yani, Adila Fitri Yoli Zairmi Yulia Fitri Yunita I. Lubis Zairmi, Yoli Zamri, Zamri Zulkarnain Zulkarnain