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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) Komunikasi Fisika Indonesia Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam Jurnal Spektra Journal of Aceh Physics Society JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI Jurnal Litbang Industri Jurnal Edu Research BULETIN FISIKA JOURNAL ONLINE OF PHYSICS Turbo : Jurnal Program Studi Teknik Mesin Spektra: Jurnal Fisika dan Aplikasinya Communications in Science and Technology Indonesian Physical Review APTEK Jurnal Fisika Indonesia Teknomekanik Unri Conference Series: Community Engagement Journal of Applied Materials and Technology Journal of Technomaterial Physics Dinamika Lingkungan Indonesia Jurnal Litbang Industri PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Newton-Maxwell Journal of Physics National Multidisciplinary Sciences Science, Technology, and Communication Journal Journal of Engineering and Technological Sciences
Erman Taer
Unknown Affiliation
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Other

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Bioelectricity and biomagnetism as keys to realization of neurotechnology Erwin, Erwin; Taer, Erman; Afrinal, Afrinal
Indonesian Physics Communication Vol 22, No 2 (2025)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jkfi.22.2.157-168

Abstract

The importance of bioelectricity and biomagnetism in neurotechnology has been outlined in this study. There are three main processes in neurotechnology, namely: signal delivery, data storage and data processing. These neurotechnological processes require three essential things, namely measurements, tools and materials. This scientific study describes the form of signal delivery in neurotechnology, the form of data storage and the form of data processing. The measurement methods that can be applied have also been described along with the tools and materials. Bioelectricity plays a very important role in building neurotechnology. Meanwhile, biomagnetism is an important aspect that cannot be separated from the phenomenon of bioelectricity which also supports systems in neurotechnology. The phenomena of bioelectricity and biomagnetism in neurotechnology are described in this study along with measurement devices and materials. Measuring devices and materials must be modified as conditions permit in their working conditions. It has also been studied that natural neurotechnological data storage in living creatures is through muscle memory, signal delivery occurs in the form of bioelectricity and data processing is a combination of data delivery and storage. This study also examines the future prospects of neurotechnology along with its moral aspects.
Oxygen/sulphur self-doped tunnel-like porous carbon from yellow bamboo for advanced supercapacitor applications Taer, Erman; Yanti, Novi; Putri, Rahma Lia; Apriwandi, Apriwandi; Martin, Awaludin; Julnaidi, Julnaidi; Chitraningrum, Nidya; Fudholi, Ahmad; Taslim, Rika
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 16, No 3: September 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v16.i3.pp2030-2042

Abstract

The 3D hierarchical pore structure with tunnel-like pores is essential to the performance of porous activated carbon (AC) materials used in symmetric supercapacitors. This study aimed to effect of adding (0.3, 0.5, and 0.7) M KOH reagent and heat treatment on the formation of 3D porous, tunnel-like AC derived from yellow bamboo (YB) through N2-CO2 pyrolysis at 850 °C. The AC produced had a high concentration of nanopores, becoming a valuable storage medium with favorable physical-electrochemical properties. The results showed that 0.5-YBAC had the best physical and electrochemical properties, with a carbon purity, 89.16%, micro crystallinity of 7.374 Å, and excellent amorphous porosity. Furthermore, 3D hierarchical pore structure, enriched naturally occurring heteroatoms, dopant of oxygen (10.14%) and sulfur (0.10%). A maximum surface area of 421.99 m² g⁻¹, along with a dominant combination of micro-mesopores. The electrochemical performance test of the 0.5-YBAC electrode showed a Csp of 214 F g⁻¹, with Esp 24.7 Wh kg⁻¹ and Psp 19.2 W kg⁻¹. In conclusion, this study showed the potential of YB stems to enhance the development of supercapacitors, offering superior porosity characteristics for efficient energy storage applications.
Developing Carbon Nanofibers from Gnetum Gnemon Linn Pericarp Using Dual Activators KOH And Melamine as Innovative Electrode Materials for Supercapacitors Farma, Rakhmawati; Putri, Hardini Chania; Apriyani, Irma; Azwat, Luqyana Adha; Awitdrus, Awitdrus; Deraman, Mohamad; Rini, Ari Sulistyo; Setiadi, Rahmondia Nanda; Taer, Erman
Journal of Engineering and Technological Sciences Vol. 57 No. 6 (2025): Vol. 57 No. 6 (2025): December
Publisher : Directorate for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2025.57.6.2

Abstract

Synthesis of carbon nanofibers from Gnetum gnemon Linn (GP) biomass with dual activators, KOH and melamine, offers a potential approach for high-performance supercapacitor electrodes. This study evaluated the preparation of GP-based carbon nanofibers through single and double activation, with varying melamine masses of 0.1, 0.3, and 0.5 g at 0.3 M KOH. The pyrolysis (integrated carbonization and physical activation) occurred at 600°C in N₂ and 800°C in CO₂ atmospheres. The material was activated using 0.3 g of melamine in 0.3 M KOH to produce abundant and highly amorphous nanofiber structures. These characteristics contributed to the high specific capacitance of 400 F/g at a scan rate of 1 mV/s and an energy density of 17 Wh/kg at a power of 465 W/kg. These results demonstrated the synergistic effect of melamine and KOH in increasing the active surface area and structural conductivity. This finding confirms the potential of GP biomass that has not been optimally utilized as a sustainable precursor for energy storage applications, especially supercapacitors.
FABRICATION OF THERMAL BIO-INSULATOR FROM OIL PALM TRUNK FIBER: ANALYSIS OF THERMAL, PHYSICAL AND MECHANICAL PROPERTIES Yana, Debi; Husna, Ropiqotul; Kusmawati, Intan; Ginting, Delovita; Syahputra, Romi Fadli; Taer, Erman
Indonesian Physical Review Vol. 7 No. 2 (2024)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v7i2.279

Abstract

The majority of air conditioning systems, including both cooling and heating systems, consume a significant amount of electrical energy as a result of their high electrical consumption and prolonged periods of operation. The use of thermal insulation materials in the building can help conserve electrical energy used for room conditioning systems. Natural fibers are used as an alternative in the production of thermal insulation, which is commonly referred to as bio-insulators. The utilization of oil palm trunk (OPT) fiber as the primary material for thermal insulation shows promise. This study aims to determine the specific attributes of OPT fiberboard that make it suitable for use as a thermal bio-insulator. The features examined encompass physical, mechanical, thermal, and fire-resistant attributes. The OPT fiber underwent a treatment process involving boiling at a temperature of 80℃ for a duration of 30 minutes. The fiberboard is manufactured using epoxy adhesive and calcium carbonate additive, and then printed using the hand lay-up process and cold-compaction technique. The physical characteristics of fiberboard indicate that there is a direct relationship between its density and water absorption.  Testing revealed that fiberboard has a low thermal conductivity and high heat capacity value. By including calcium carbonate, the burning time of the fiberboard was tested and seen to decrease, indicating a delay in the fiberboard burning process, as evidenced by the extended flame suppression time. The density of OPT fiberboard varies between 0.48 and 0.70 gr/cm3. The absorbency of water is inversely related to its density. Water absorption capacity generally rises with decreased density. The obtained heat capacity value is 1.28-2.38 J⁄(g℃). The mechanical value ranges from 1.00 to 3.55 MPa. The incorporation of calcium carbonate significantly impacts the thermal and mechanical characteristics of the fiberboard. The produced OPT fiberboard satisfies the requirements for good thermal, physical, and mechanical characteristics, making it a suitable bio-insulation material for buildings.
Potensi Rotan sebagai Elektroda Karbon Aktif Monolit untuk Aplikasi Superkapasitor Mustika, Widya Sinta; Taer, Erman; Apriwandi; Agustino; Taslim, Rika
Newton-Maxwell Journal of Physics Vol. 4 No. 1: April 2023
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/nmj.v4i1.26976

Abstract

Rotan merupakan salah satu produk hutan utama, dengan ketersedian yang cukup berlimpah. Struktur rotan yang terdiri dari gugus polimer (selulosa, hemiselulosa dan lignin) menjadikan rotan berpotensi sebagai karbon aktif. Pemanfaatan rotan sebagai karbon aktif adalah upaya untuk mengkonversi bahan biomassa menjadi produk bernilai ekonomi. Tujuan dari penelitian ini adalah untuk menghasilkan karbon aktif monolit tanpa bahan perekat sebagai elektroda superkapasitor.  Bahan baku rotan dikonversi menjadi karbon aktif monolit  melalui proses karbonisasi (N2, 600 oC) dan aktivasi fisika (CO2, 850 oC) yang terintegrasi. Kemampuan karbon aktif monolit rotan sebagai elektroda superkapasitor ditinjau melalui sifat elektrokimia menggunakan cyclic voltammetric (CV). Penelitian ini berhasil mengubah rotan menjadi   elektroda karbon aktif monolit tanpa bahan perekat, dengan kemampuan elektrokimia sebesar 104 F g-1 dengan laju pemindaian 1 mV s-1, menggunakan konfigurasi elektroda lapisan ganda dengan elektrolit 1 M H2SO4. Elektroda karbon aktif monolit rotan juga menunjukkan densitas sebesar 1,04 g cm-3, yang menunjukkan potensi kehadiran struktur pori yang baik.
Pengaruh Temperatur Aktivasi Fisika Terhadap Daya Serap Iodium Karbon Aktif Berbahan Dasar Limbah Plastik Polyethylene Terephthalate (PET) Khotimah, Nur; Martin, Awaludin; Taer, Erman
TURBO [Tulisan Riset Berbasis Online] Vol 13, No 1 (2024): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v13i1.3314

Abstract

Plastik sebagai inovasi dalam dunia material telah membawa dampak besar terhadap pencemaran lingkungan. Dampak negatif yang dihasilkan menjadi semakin nyata seiring dengan peningkatan produksi dan penggunaannya. Polyethylene terephthalate (PET) adalah jenis plastik yang digunakan dalam pembuatan botol minuman, kemasan makanan, dan berbagai produk lainnya. Solusi yang sedang dikembangkan untuk mengatasi permasalahan tersebut adalah pemanfaatan limbah plastik sebagai bahan dasar pembuatan karbon aktif. Karbon aktif adalah adsorben yang digunakan dalam aplikasi filtrasi air, pemurnian gas, dan pengolahan limbah. Daya serap Iodium (DSI) merupakan parameter yang sangat penting dalam menentukan kualitas dari suatu karbon aktif sebagai adsorben. Penelitian ini bertujuan untuk mengetahui nilai DSI pada karbon aktif berbahan dasar limbah plastik PET. Metode penelitian ini adalah plastik PET dikarbonisasi pada temperatur 400ºC selama 240 menit. Kemudian diaktivasi fisika pada variasi temperatur 800ºC dan 850ºC selama 120, 180 dan 240 menit. Karbon aktif yang dihasilkan pada penelitian ini telah memenuhi standar SNI 06-3703-1995 dengan hasil pengujian DSI paling optimum terdapat pada karbon aktif yang diaktivasi pada temperatur 800ºC selama 240 menit yaitu sebesar 895,78 mg/g.
Co-Authors ', Rika ', Sugianto A. Ira Afdhal Rizki Afrinal, Afrinal Agustino Agustino Agustino Agustino Agustino Agustino Agustino Agustino Agustino Agustino Agustino, Agustino Ahmad Fudholi Akrajas Ali Umar Andika Afrianda Anisa Indriawati Anita, Sofia Antonius Surbakti Antonius Surbakti Antonius Surbakti Apriwandi Apriwandi . Apriyani, Irma Awaludin Martin Awitdrus Awitdrus, Awitdrus Azwat, Luqyana Adha Bidayatul Armynah Budi Astuti Chitraningrum, Nidya D.N. Sarah D.N. Sarah, D.N. Decha Apriliany Suwandi Delovita Ginting, Delovita Deniza, Rindhu Nabila Desmagrini Desmagrini Desmawati Desmawati Dewi Marina Dewi Ramayani Eko Nur Arif Erwin Amiruddin Erwin Erwin Eva Wahyuni Harahap Fachry Abda El Rahman Fairuzy, Zeeva Khalilah Fitria Puspita Sari Gina Sania H. Yusra Harahap Eva Wahyuni Hardanto, Lilik Tri Hasanah, Fainida Hefniati Hermansyah Aziz Husna, Ropiqotul Indah Tamara Sitorus Indriawati, Anisa Inrizky Domy Muchammadsam Iwantono Iwan Barnawi Jasril Jasril Juandi Juandi Julnaidi Julnaidi Julnaidi, Julnaidi Juwita Ade Putri Khairul Ihsan Khotimah, Nur Khumairah, Zahra Kresna, Pharada Kristin Natalia Kusmawati, Intan Lazuardi Umar Lilik Tri Hardanto Lutfi Rindang Lestari M. Paiszal Marina, Dewi Meisya, Meisya Melda Riyani Butet Melinda Vivi Miftah Ainul Mardiah Minarni Shiddiq Mohamad Deraman, Mohamad Mozaffari, Nastaran Mozaffari, Niloofar Muhammad Nasir Muhammad Nasir Mukhlis Mukhlis Mustika, Widya Sinta Nasruddin Nasruddin Novi Yanti Novi Yanti Novi Yanti Nur Akmal Nursyafni, Nursyafni Nursyaputri, Wan Mery Nurwijayanti Pandi Kurniawan Pharada Kresna Pratiwi, Lini Purba, Cenora Evelynza Putri, Hardini Chania Putri, Rahma Lia R. Farma R. Farma R. Farma, R. R. Syech R. Taslim R. Taslim R. Taslim R. Taslim R. Taslim R. Taslim R. Taslim R. Taslim R. Taslim, R. Rahmi Dewi Rahmondia N. Setiadi Rahmondia Nanda Setiadi Rakhmawati Farma Rati, Yolanda Retno Handayani Riad Syech Riduan Alvinsen Sirait Rika ' Rika Taslim Rika Taslim Rika Taslim Rika Utari Rikaryalita Novitra Rini, Ari Sulistyo Romi Fadli Syahputra S. Aiman S. D. Hartati S. Nurjanah Saktioto Saktioto Salomo Salomo Septa Herniyanti Sitorus, Afrida Helena Sri Yanti Sugianto ' Sugianto Sugianto Sugianto Sugianto Sugianto Sugianto Sugianto Sugianto Sugianto Sugianto Sugianto Sugianto Sugiyanto Sugiyanto Sukendi Sukendi Sulistyo Rini, Ari Supian, Faridah Lisa Syahrul Syahrul Syamsudhuha Syamsudhuha T. Oktaviani Taslim Rika Usman Malik W. S. Mustika W.S. Mustika Wetya Fatma Kumala Sari Widodo Budi Kurniawan Yan Soerbakti Yan Soerbakti Yana, Debi Yanuar Hamzah Yolanda Rati Zikri Alrifani Zulkarnain Usman Zulkifli ' Zulkifli Zulkifli Zulkifli Zulkifli Zurya Hanifa