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All Journal Jurnal Pendidikan Vokasi Jurnal Kesehatan Olahraga Ulul Albab: Jurnal Studi Islam Jurnal Al-Tadzkiyyah PROSIDING SEMINAR KIMIA Terampil : Jurnal Pendidikan dan Pembelajaran Dasar Jurnal Ibriez : Jurnal Kependidikan Dasar Islam Berbasis Sains SPEKTRA: Jurnal Kajian Pendidikan Sains Indonesian Journal of Science and Mathematics Education Al-Madrasah: Jurnal Ilmiah Pendidikan Madrasah Ibtidaiyah JURNAL PENDIDIKAN TAMBUSAI Jurnal Teknik Mesin Cakram Jurnal Teknik Mesin Indonesia Jurnal Ekonomi Manajemen Sistem Informasi Dinasti International Journal of Digital Business Management Aspirasi : Jurnal Masalah-masalah Sosial Jurnal Fakultas Teknik UNISA Kuningan JTTM: Jurnal Terapan Teknik Mesin Jurnal Media Informatika INSECTA: Integrative Science Education and Teaching Activity Journal Journal of Mechanical and Electrical Technology Tadris: Jurnal Pendidikan Islam Tensile : Jurnal Pengabdian Kepada Masyarakat Jurnal Pembumian Pancasila : Mewujudkan TRISAKTI sebagai Pedoman Amanat Penderitaan Rakyat Jendela Akademika: Jurnal Pengabdian kepada Masyarakat Prosiding SNTTM Strength : Jurnal Penelitian Teknik Mesin KARIR Jurnal Ilmiah Manajemen
Syaiful Arif
SMK Negeri 2 Amuntai Hulu Sungai Utara Kal-Sel
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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Development of synthetic graphite for reactor fuel, moderators, and nuclear reactor components: A literature review arif, Syaiful
Prosiding SNTTM Vol 23 No 1 (2025): SNTTM XXIII October 2025
Publisher : BKS-TM Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71452/srrh5h58

Abstract

Graphite has been used as a moderator material in nuclear power stations and is considered a potential material for use in future Generation IV advanced reactors. Graphite has excellent thermal-mechanical and neutron moderation properties, and therefore, it is currently used as a structural core component and nuclear fuel in High Temperature Gas Cooled Reactors (HTGR). Synthetic graphite with higher specific capacity and superior cyclic life is prepared by high-temperature graphitization of anthracite coupled with effective catalysts. In the graphitization process, thermodynamically unstable carbon atoms regularly change from a disordered structure to a graphite crystal structure through thermal activation. However, the graphitization process needs to be carried out at a high temperature above 2800 °C. Common raw materials include pyrolysis coal tar and carbonized and calcined carbon materials. Literature studies show that the selection of coal as the raw material to be synthesized affects the final properties of graphite, such as purity, homogeneity and microscopic structure. This comparison of raw materials provides insight into which materials are most efficient and economical to use in the production of synthetic graphite. A spectrum fitting methodology is developed. Next, SEM observations of the irradiated materials are performed. to compare the reactor performance by evaluating the critical numbers for systems using a two-phase composite moderator (magnesia matrix with a moderated phase containing beryllium or retained hydrides) relative to the case of a reference graphite moderator. Depending on their properties, different nuclear grades of graphite are used for HTGR. Given their excellent mechanical properties, IG-110 and PGX graphite grades are used for core structural components such as fuel blocks and permanent reflector blocks, while A3-3 heavy fraction graphite/resin mixtures are used as matrix components in TRISO fuel compaction due to their high absorption of fission products such as Cs and Sr. The accumulation of strong neutron absorbers in graphite lowers the cavity reactivity coefficient, but it remains positive. Despite the loss of excess reactivity in the core, the presence of strong neutron absorbers in graphite is beneficial from a safety point of view
PELATIHAN MINDFULNESS BERBASIS SANDPLAY THERAPY UNTUK MENINGKATKAN KESEJAHTERAAN PADA GURU SEKOLAH DASAR DI KABUPATEN KEBUMEN Lubis, Irma Rosalinda; Yudhaningrum, Lupi; Anugrah, Nazir Ultama; Haryono, Khairina Widya Primandari; Arif, Syaiful
Jendela Akademika Vol. 4 No. 01 (2026): Jendela Akademika
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JendelaAkademika.401.02

Abstract

Teachers’ well-being is a crucial factor that directly influences the quality of teaching and learning processes. However, teachers often experience psychological distress due to heavy workloads, administrative duties, and limited economic welfare. These pressures reduce their motivation and mental health, which negatively impacts educational quality. This community service program aims to implement mindfulness training as an intervention to enhance teachers’ well-being in elementary schools in Kebumen Regency. A total of 105 teachers participated, divided into an experimental group (55 teachers) and a control group (50 teachers). The program used sandplay therapy-based mindfulness training within a quasi-experimental design. Training activities included mindfulness awareness, breathing techniques, emotional regulation, and reflection sessions using sandplay media. The evaluation showed asignificant improvement in well-being among teachers who attended the training (p = 0.019), compared to minor external changes in the control group (p = 0.013). Qualitative reflections also revealed that participants felt calmer, more focused, and more motivated in teaching after the program. The findings confirm that mindfulness training is an effective and low-cost psychological intervention that can be integrated into teacher professional development programs. This program highlights the importance of addressing teachers’ mental health as part of national education quality improvement strategies.
Development of Islamic Education Curriculum Instruments for Early Childhood through Semester Learning Plans (RPS) for Gender Responsive Islamic Courses Muafiah, Evi; Mujib, Ahmad; Arif, Syaiful
TADRIS: Jurnal Pendidikan Islam Vol 17 No 1 (2022)
Publisher : State Islamic Institute of Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (835.025 KB) | DOI: 10.19105/tjpi.v17i1.6126

Abstract

This study aims to test the feasibility of gender responsive semester learning plans (RPS) according to gender responsive learning experts, learning design experts, and the effectiveness of using gender responsive RPS in Islamic Religious Colleges (PTKI). This research is developmental by using the instructional system model of Thiagarajan, Semmel and Semmel (1974) with a modified 4-D model. The 4-D model consists of Define, Design, Develop and Disseminate. In this study, modification of the 4-D model was carried out, namely simplification from four stages to three stages. The results showed that the RPS was gender responsive from the development of the 4-D model in the subjects of Al-Qur'an Studies, Hadith Studies, Introduction to Islamic Studies, and the History of Islamic Civilization are considered appropriate according to gender responsive learning experts and learning design experts. The limited trial showed a very satisfactory response based on the assessment of observer lecturers and PIAUD students who had participated in this study.
Co-Authors Adin, Adin Ahmad Mujib, Ahmad alayuddin, Faqih Anabilla, Alifah Rahma Putri Andika, Mohamad Bagus Anggi Sofiana, Karisma Anggraini, Irma Novita Anugrah, Nazir Ultama Ardiansyah, Fakih Arif, Joni Arrasyid, Rizky Bambang Santoso Marsoem Bima Rizky Ananda Bohari Yusuf Budiono, Lukni Arif Diez Novitasari Evi Muafiah Faridi Faridi Febriansyah, Mochamad Duta Haickal Fenty Anggraeni, Erwinda Fenty Anggreeni, Erwinda Firdausi, Firna Nahwa Firmansyah, Heical Halomoan, Yosua Andhika Hanun Asrohah Juhaeri Kahlil Gibran, Muhammad Khalidiyah, Tuhfatul Koswara Lia Novita Mua’limin, Mua’limin Munzir Qadri Najiyah, Siti Firqo Nurdin, Ade Akhyar Nurul Ikhsan, Muhamad Pangestu, Dimas Dahlan Perkasa, Mustasyar Prasetia, Senata Adi Prayitno, Pungkas Prayoga, Bagus Purwadi Purwadi QOMARUZ ZAMAN Rafliansyah, Dhika Riana, Teguh Rustama, Daya Sabiqunassabiqun, Sabiqunassabiqun Santosa, Yogi Saputra, Aswin Caesar Sari, Shilvi Nofita Sunarto Sunarto Syahwati, Fitriana Syaiful Arif Ubai Dillah Velayati, Jihan Maghfiroh Wahid Hasim Wibowo, Reson WIDYA PH, KHAIRINA Yohan Yudhaningrum, Lupi Zaki, Faisal