Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal Communications in Science and Technology 'Arabiyya: Jurnal Studi Bahasa Arab
Jefriadi
Unknown Affiliation
Education Engineering Languange, Linguistic, Communication & Media

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
استخدام الأفلام الكرتونية في تدريس المفردات )دراسة تجريبية في المدرسة الابتدائية الحكومية 34 بيدي (: fa'aliyyatu tadrisi al-mufradati bistikhdami al-aflami al-kartuniyyati "dirasah tajribiyyah fi al-madrasati al-ibtidaiyyatu al hukumiyyati bidi" Jefriadi
'ARABIYYA: JURNAL STUDI BAHASA ARAB Vol. 13 No. 02 (2024): Arabiyya: Jurnal Studi Bahasa Arab
Publisher : Sekolah Tinggi Agama Islam Negeri (STAIN) Teungku Dirundeng Meulaboh Aceh Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47498/arabiyya.v13i02.1823

Abstract

Based on the observation of researcher at MIN 34 Pidie, the researcher saw that teachers at the school could not get the students’ attention and could not impress them during studying. Furthermore, teachers also refrain from applying interesting learning methods and media, so students are less eager to learn. The purpose of this study is to identify if the application of cartoons transportations effective to increase students’ ability. Also it is to identify the students’ response in learning mufradat using cartoons. The method used in this research is pre experimental with one group pretest and postest design. The researcher used tests and questionnaire for data collection. And as a sample of research, the researcher select the second grader consisting of 25 students. The researcher used percentage values and average values to analyze student’s response data and analyze T test to gain influence. The result of T test indicates that applying cartoons can increase students’ ability. And the qustionnaire result that students’ response to learning the vocabulary by applying cartoons are in high values. Thus, mufrodat learning by using cartoon films can be called effective.
Insight into Aluminum Leaching with Microwave from Peat Clay: A Comparative Kinetic Study of SC and BIC Models Mirwan, Agus; Hairullah; Jelita, Rinny; Jefriadi; Putra, Meilana Dharma; Ilmanto, Bintang Hambela; Putri, Hexas Sarastiwi Handayani; Ulum, Muhammad Bahrul; Haka, Muhammad Rofi; Darmawan, Muhammad Arif
Communications in Science and Technology Vol 10 No 2 (2025)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.10.2.2025.1850

Abstract

The depletion of bauxite reserves has prompted the research of various types of soil as alternative sources of aluminum, such as the peat clay used in this study. The complexity of the minerals requires a more efficient leaching methods, while microwave-based leaching offers a potential approach through rapid and uniform heating. This study examines the effect of microwave power, HCl concentration, operating temperature, and particle size on the leaching efficiency of aluminum from peat clay soil. The leaching process was modeled using two approaches, namely the shrinking core (SC) model and the broken-intact cell (BIC) model under pseudo-steady state conditions. The results showed that increasing HCl concentration, microwave power, and temperature accelerated leaching, while increasing particle size decreased leaching efficiency. Optimum conditions were achieved at 4 M HCl concentration, 100 W power, 40 °C temperature, and 0.0074 cm particle size. The shrinking core (SC) model showed better fit under most conditions, while the intact-broken cell (BIC) model was more accurate at lower temperatures and particle sizes. The simulation results showed that the most suitable parameter values in the SC model were De = 0.0049 cm2/s, k = 10.5 cm/s, and kc = 2.49 cm/s, while in the BIC model De = 0.04808 cm2/s and K = 0.02689 g/cm3 were obtained. These results confirm the superiority of the SC model in representing microwave-based leaching mechanisms in general, while the BIC model provides additional insights under diffusion-limited conditions. Process Performance Index (PPI) analysis showed that optimum conditions were achieved at 4 M HCl and 40 °C, but lower acid concentrations also yielded competitive PPI. This confirms that leaching effectiveness is determined by a combination of alumina recovery and reagent consumption efficiency. These findings contribute to the development of leaching kinetics models and the optimization of more efficient and energy-saving aluminum extraction processes.
Co-Authors Agus Mirwan Hairullah Haka, Muhammad Rofi Ilmanto, Bintang Hambela Meilana Dharma Putra Muhammad Arif Darmawan Muhammad Bahrul Ulum Putri, Hexas Sarastiwi Handayani Rinny Jelita, Rinny