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All Journal JURNAL TAHURI Makara Journal of Technology Indonesian Journal of Sport Science and Coaching Journal of Learning Technology
Anggara Anggara, Anggara
Departemen Teknik Kimia, Universitas Indonesia, Depok 16424, Indonesia
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Education Electrical & Electronics Engineering Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Other

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CO2 Absorption from Its Mixture with CH4 or N2 through Hollow Fiber Membrane Contactor using Water as Solvent Kartohardjono, Sutrasno; Anggara, Anggara; Subihi, Subihi; Yuliusman, Yuliusman
Makara Journal of Technology Vol. 11, No. 2
Publisher : UI Scholars Hub

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Abstract

CO2 Absorption from Its Mixture with CH4 or N2 through Hollow Fiber Membrane Contactor using Water as Solvent. Hollow fiber membrane contactors have been widely used as gas-liquid contactors recently such as in the CO2 absorption process from gas stream. This research aims to evaluate the effectiveness of hollow fiber membrane contactor to absorb CO2 from its mixture with CH4 or N2 using water through mass transfer and hydrodynamic tests. There are 3 membrane modules used in this research with shell diameter of 1.9 cm, length of 40 cm, outer fiber diameter of 2.7 mm and fiber number in the contactors of 10, 15 and 20. Liquid flow rates in the hollow fiber membrane contactors are varied in this research. Research results show that mass transfer coefficients in the membrane contactor increase with increasing liquid flow rate and decrease with increasing fiber number in the contactor. Flux of CO2 into water can achieve 1.4x10-9 mol CO2 /m2.s and mass transfer coefficients can achieve 1.23 x 10-7 m/s. Meanwhile, hydrodynamic test results show that water pressure drop in the membrane contactors increase with increasing fiber number in the contactors.
Mobile Learning Berbasis Android Sebagai Media Pembelajaran Bahasa Inggris Pada SDN 1 Banjar Manis Anggara, Anggara; Mardiyanto, Mardiyanto
JELTec (Journal of Learning Technology) Vol. 3 No. 1 (2025): JELTec (Journal of Learning Technology)
Publisher : YHMM PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56327/jeltec.v3i1.102

Abstract

In today's modern era, technological advancements have transformed traditional face-to-face learning into information technology-based education. Books and teachers, once the primary sources of learning, are now supplemented by internet-based resources, especially during the Covid-19 pandemic, which required online learning innovations. One such innovation is mobile learning, defined as the use of mobile devices in teaching and learning processes. This study aims to develop electronic teaching materials in the form of mobile learning for the English subject at SDN 1 Banjar Manis. English is a compulsory subject at the elementary level, emphasizing interaction and vocabulary development to support daily communication skills. The mobile learning application allows students to download teaching materials via smartphones installed with the mobile learning platform. The application was developed using Android Studio, Notepad, PHP, a MySQL database, and designed with Photoshop. With this application, teachers and students can easily interact online, and learning materials can be accessed anytime and anywhere, making the learning process more flexible and effective.
Learning Beyond the Classroom: English Clubs and Students’ Speaking Competence in an Indonesian EFL Context Aditya, Noval; Prayogo, Dimas; Anggara, Anggara
Jurnal Tahuri Vol 21 No 2 (2024): August 2024
Publisher : Jurusan Pendidikan Bahasa dan Seni FKIP Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/tahurivol21issue2page137-154

Abstract

This study investigates learning beyond the classroom by examining the role of English Clubs in enhancing students’ speaking competence within the Indonesian EFL context. It is motivated by the limited opportunities for authentic speaking practice in formal classrooms, which remain predominantly grammar- and exam-oriented. Focusing on the English Club at SMA 54 Jakarta, the research aims to describe its design and management, analyze how its activities support students’ speaking development, and identify supporting and inhibiting factors affecting its effectiveness. Adopting a qualitative descriptive–interpretative approach, data were collected through participant observation, in-depth interviews with the club advisor and 10–15 student members, and documentation of club activities and student outputs. Thematic analysis identified recurring patterns in learning practices, perceived progress, and influencing factors, supported by triangulation for credibility. Findings indicate that the English Club serves as an alternative, empowering learning space that complements formal instruction through communicative activities, debates, storytelling, public speaking, and games, that foster fluency, confidence, pronunciation, and interactional strategies. Key enablers include intrinsic motivation, peer solidarity, and teacher support, while time constraints and varied proficiency levels present challenges. The study contributes to understanding English Clubs as communities of practice that operationalize Communicative Language Teaching and Task-Based Learning, offering a replicable model for schools and policy support for student-led initiatives.
Penerapan Model Permainan Sirkuit dan Pembelajaran Kooperatif untuk Meningkatkan Hasil Belajar Kebugaran Jasmani Siswa Kelas V Sekolah Dasar Handryant, Rahmad Zulham Assidiqqy; Anggara, Anggara; Rofi’ah, Ihda Amaliyatur; Kurniawan, Rizqi Aditya; Ramadhani, Revian; Erlangga, Naufal Zidane; Nurkholis, Nurkholis
Jurnal Ilmu Olahraga dan Kepelatihan Indonesia Vol 8 No 2 (2026): Indonesian Journal of Sport Science and Coaching
Publisher : Jurusan Pendidikan Olahraga dan Kepelatihan FKIP Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/9gf41n61

Abstract

Penelitian ini bertujuan mendeskripsikan perubahan hasil belajar kebugaran jasmani peserta didik kelas V SDN Pakis 1/368 Surabaya melalui tindakan pembelajaran bertahap menggunakan permainan sirkuit dan pembelajaran kooperatif. Penelitian menggunakan desain Penelitian Tindakan Kelas dalam dua siklus yang masing-masing mencakup perencanaan, pelaksanaan tindakan, observasi, dan refleksi serta melibatkan 28 peserta didik. Siklus I menerapkan permainan sirkuit melalui beberapa pos aktivitas, sedangkan Siklus II menggunakan pembelajaran kooperatif sebagai tindakan perbaikan berdasarkan refleksi Siklus I. Hasil belajar mencakup kelincahan, kekuatan, daya tahan, dan kecepatan yang dinilai melalui tes praktik. Data kuantitatif dianalisis secara deskriptif menggunakan nilai rata-rata dan interval Kriteria Ketercapaian Tujuan Pembelajaran (KKTP) yang diadopsi dari Panduan Pembelajaran dan Asesmen 2025. Rata-rata pra-tindakan sebesar 77,75 (SD = 4,12; rentang 67–84), meningkat menjadi 81,11 pada Siklus I dan 90,75 pada Siklus II, sehingga kenaikan keseluruhan sebesar 13,00 poin. Proporsi peserta didik pada interval 81–100 meningkat dari 17,86% pada pra-tindakan menjadi 50,00% pada Siklus I dan 100% pada Siklus II. Seluruh komponen meningkat dari pra-tindakan ke Siklus II, dengan kenaikan kumulatif antara 10,64 poin pada daya tahan dan 15,22 poin pada kelincahan. Temuan menunjukkan bahwa perbaikan pembelajaran secara bertahap berdasarkan hasil refleksi diikuti oleh capaian hasil belajar kebugaran jasmani yang lebih tinggi dan lebih merata.
Co-Authors Aditya, Noval Erlangga, Naufal Zidane Handryant, Rahmad Zulham Assidiqqy Kurniawan, Rizqi Aditya Mardiyanto Mardiyanto Nurkholis Nurkholis Prayogo, Dimas Ramadhani, Revian Rofi’ah, Ihda Amaliyatur Subihi Subihi, Subihi Sutrasno Kartohardjono Yuliusman Yuliusman