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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) QISTINA: Jurnal Multidisiplin Indonesia
Putri, Rahma Lia
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Religion Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Nursing

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Increasing Literacy and Numerization by Holding A 1st Primary Level Ranking Competition in Tambusai Village, Rumbio Jaya District, Kampar Regency Munte, Mateo Samuel; Putri, Rahma Lia; Fadhila, Faiza; Rahmadanti, Salsabila; Wulandari, Aprilia; Hayati, Lulu; Annisa, Annisa; Simanjuntak, Jonatan Danuardi; Purnama, Irma Anggraini; Qasthalani, Azfa Duta
QISTINA: Jurnal Multidisiplin Indonesia Vol 2, No 2 (2023): December 2023
Publisher : CV. Rayyan Dwi Bharata

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57235/qistina.v2i2.1258

Abstract

Literacy has a broad scope, not only talking about reading and writing letters, but also the ability to capture information with logical and critical thinking, ultimately being able to use it effectively to achieve certain goals. Reading is a process carried out to obtain a message and then convey it using written words. The reading literacy movement for students is an activity designed so that when students read, they are not only proficient at reading. However, students can also understand the content of the reading. The aim of this research is to improve students' reading skills. The method for implementing community service KKN activities is carried out through several stages, including the following: (1) Contacting cooperation partners with the Tambusai Village head to ask for permission to carry out KKN activities, (2) Discussing the work program that our group has prepared and linked it to the problem. what happens to children in the Tambusai Village environment, (3) Contacting elementary schools to carry out activities, (4) Measuring children's learning abilities by helping teachers carry out teaching activities, (5) Carrying out 1st ranking competition activities at Tambusai village elementary schools. The result of this service is children's reading ability by holding competitions that foster students' enthusiasm for reading and learning in order to win the competition.
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.
Co-Authors Ahmad Fudholi Annisa Annisa Apriwandi . Awaludin Martin Chitraningrum, Nidya Erman Taer Fadhila, Faiza Hayati, Lulu Julnaidi, Julnaidi Munte, Mateo Samuel Novi Yanti Purnama, Irma Anggraini Qasthalani, Azfa Duta Rahmadanti, Salsabila Rika Taslim Simanjuntak, Jonatan Danuardi WULANDARI, APRILIA