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All Journal Jurnal Ilmu Fisika Jurnal Ilmiah Wahana Pendidikan Edu Research : Jurnal Penelitian Pendidikan
Enny Zarvianti
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Religion Humanities Astronomy Earth & Planetary Sciences Education Materials Science & Nanotechnology Physics Social Sciences Other

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Karakterisasi Bahan Perisai Radiasi Neutron Ultra High Molecular Weight Polyethyene Dengan Filler Gd2O3 Menggunakan Teknik Radiografi Neutron Enny Zarvianti; Dian Fitriyani; Elvaswer Elvaswer; Winda Surya Bery; Abu Khalid Rivai; Mardiyanto Mardiyanto; Sulistioso G.S
Jurnal Ilmu Fisika Vol 9 No 1 (2017): March 2017
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jif.9.1.1-6.2017

Abstract

Radiasi merupakan pancaran energi melalui suatu materi atau ruang dalam bentuk energi, panas, partikel atau gelombang yang dapat diserap oleh bahan lain. Beberapa radiasi dapat mengionisasi bahan yang dilaluinya salah satunya radiasi neutron karena memiliki daya tembus yang tinggi sehingga sangat diperlukan perisai radiasi. Adapun kriteria dari perisai radiasi neutron harus memiliki kandungan hidrogen yang tinggi, memiliki nilai tampang lintang yang baik dan tidak bersifat korosi. Bahan UHMWPE (Ultra High Molecular Weight Polyethyene) memiliki kandungan hidrogen yang tinggi dan tidak mudah korosi dan bahan Gadolinium oxide (Gd2O3) sangat baik menyerap neutron karena mempunyai tampang lintang serapan neutron yang tinggi. Berdasarkan hal tersebut maka dibuat komposit UHMWPE-Gd2O3 dengan tujuan dapat meningkatkan nilai serapan neutron sehingga dalam aplikasinya bisa lebih efektif untuk memperlambat bahkan menahan radiasi neutron. Telah dilakukan karakterisasi bahan perisai radiasi neutron yang dibuat sendiri dengan teknik radiografi neutron. Bahan perisai radiasi dibuat dengan bahan utama UHMWPE dan penambahan filler Gadolinium Oxide (Gd2O3) dengan kompoisisi 70% : 30% massa menggunakan metode blending dan kompaksi. Bahan dibuat dengan ketebalan yang bervariasi dari 0,5 cm hingga 2 cm. Hasil karakterisasi XRD menunjukkan tidak terbentuk senyawa kimia antara kedua bahan dan karakterisasi menggunakan SEM terlihat hasil distribusi unsur yang terkandung dalam filler Gd2O3 merata pada bahan dasar polimer. Pengujian serapan neutron menggunakan teknik radiografi neutron dengan metode film. Dengan penambahan variasi ketebalan meningkatkan daya serap bahan dari 58,78% menjadi 67,89% dan nilai koefisien atenuasi diperoleh sebesar 1,025.Kata kunci: perisai radiasi, UHMWPE,Gd2O3, radiografi neutron, daya serap dan koefisien  atenuasi.
Efektivitas Metode Pembelajaran Team Quiz Pada Mata Pelajaran IPA Materi Fisika Peserta Didik Kelas VIII SMP Negeri 10 Kerinci Dwitri Pilendia; Enny Zarvianti; Jeki Umbara
Jurnal Ilmiah Wahana Pendidikan Vol 9 No 2 (2023): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (204.861 KB) | DOI: 10.5281/zenodo.7567264

Abstract

This study aims to determine the effectiveness of the team quiz learning method in the physics subject for class VIII students of SMP Negeri 10 Kerinci. This type of research is experimental research with a pre-experimental form, the design of the research design is One Group Pretest Posttest Design. The population in this study were all 82 class VIII students of SMP Negeri 10 Kerinci, consisting of 37 male students and 45 female students. From the learning outcomes obtained from the final test after learning, based on the normality and homogeneity tests of the learning outcomes data for one class of the sample, it was found that the data were normally distributed and homogeneous, so the t-test was used to test the hypothesis. From the calculation results, the average posttest result = 78.61 while the average pretest result = 46.19. Because ????ℎ????????????????????= 21.16 and ????????????????????????= 1.71 means ????0 is rejected and ????1 is accepted. So it can be concluded that there is effectiveness of the team quiz learning method in the physics subject for class VIII students of SMP Negeri 10 Kerinci in the 2020/2021 academic year.
PERAN KURIKULUM MERDEKA DALAM PENGEMBANGAN KOMPETENSI ABAD 21 DI SEKOLAH MENENGAH Enny Zarvianti; Bachtiar Sjaiful Bachri; Lamijan Hadi Susarno
EDU RESEARCH Vol 5 No 4 (2024): EDU RESEARCH
Publisher : IICLS (Indonesian Institute for Corporate Learning and Studies)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47827/jer.v5i4.364

Abstract

The Independent Curriculum implemented in Indonesia aims to prepare students to face the global challenges of the 21st century, by placing emphasis on the development of critical, creative, collaborative, and effective communication skills. The curriculum is designed to equip students with relevant competencies in an ever-changing world, while developing the positive character and attitudes needed in society. This article aims to examine the role of the Independent Curriculum in the development of 21st century competencies at the high school level through a literature review approach. Based on a review of various relevant literature, it was found that the Independent Curriculum provides opportunities for students to develop core competencies in the 21st century, such as critical thinking, creativity, collaboration, and having effective communication skills. This can be achieved through the application of a project-based learning approach that encourages students to learn through direct experience, authentic assessments that better describe the achievement of student competencies in real contexts, and strengthening the Pancasila student profile which is the foundation of student character. The Pancasila student profile itself prioritizes attitudes such as diversity, independence, and social responsibility, which are very relevant to the needs of the increasingly complex world of work and global society. The results of this study show that the implementation of the Independent Curriculum can strengthen students' skills that are indispensable to face the challenges of the dynamic world of work and prepare them to become active and adaptive citizens in a global society. Thus, the Independent Curriculum has an important role in shaping the young generation who not only have knowledge, but also skills and attitudes that are in accordance with the demands of the times.
Co-Authors Abu Khalid Rivai Bachtiar Sjaiful Bachri Dian Fitriyani Elvaswer Elvaswer Jeki Umbara LAMIJAN HADI SUSARNO Mardiyanto Mardiyanto PILENDIA, DWITRI Sulistioso G.S Winda Surya Bery