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All Journal Jurnal Teknik Industri Jurnal Pengajaran MIPA Indonesian Journal of Science and Technology IJoLE: International Journal of Language Education Communications in Science and Technology Jurnal Kartika Kimia Molekul: Jurnal Ilmiah Kimia JEDCHEM (JOURNAL EDUCATION AND CHEMISTRY) Jurnal Penelitian Enjiniring Fakultas Teknik Unhas Acta Chimica Asiana Science Midwifery Journal of Tropical Chemistry Research and Education Jurnal Abdimas Kartika Wijayakusuma Asean Journal of Science and Engineering (AJSE) ASEAN Journal of Science and Engineering Education (AJSEE) Indonesian Journal of Multidiciplinary Research (IJoMR) Indonesian Journal of Community and Special Needs Education (IJCSNE) Indonesian Journal of Educational Research and Technology (IJERT) Indonesian Journal of Teaching in Science International Journal of Informatics, Information System and Computer Engineering (INJIISCOM) International Journal of Research and Applied Technology (INJURATECH) Mechanical Engineering for Society and Industry Automotive Experiences Journal of Mechanical Engineering, Science, and Innovation CHEMTAG Journal of Chemical Engineering Fraction: Jurnal Teori dan Terapan Matematika Journal of Engineering Environtmental Energy and Science Journal of Educational Sciences Indonesian Journal of Limnology Open Global Scietific Journal Jurnal Inovasi Teknologi Manufaktur, Energi dan Otomotif ASEAN Journal for Science and Engineering in Materials Sasambo: Jurnal Abdimas (Journal of Community Service) ASEAN Journal of Educational Research and Technology
Ragadhita, Risti
Universitas Pendidikan Indonesia
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Nursing Public Health Social Sciences Transportation Veterinary Other

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Research Trends in Ionic Liquids as Green and Low-Cost Solvents: Bibliometric Analysis from 2013 to 2023 Andika Purnama Shidiq; Risti Ragadhita; Meli Fiandini; Asep Bayu Dani Nandiyanto
Indonesian Journal of Limnology Vol. 4 No. 2 (2023): Indonesian Journal of Limnology
Publisher : Indonesian Society of Limnology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51264/inajl.v4i2.62

Abstract

Challenged by global awareness of environmental problems and demands of the industrial revolution, the Ionic Liquids (ILs) approach as a cheap and environmentally friendly solvent has been explored in various chemical reactions in many industrial fields. This article aims to perform bibliometric analysis of ILs by combining mapping analysis using Publish or Pheris and VOSviewer software and to pinpoint trends in scientific research. For this purpose, an exploratory study with a quantitative approach was developed based on secondary data from journals in google scholar, between 2013 and 2023. The keywords used in the data search are Ionic Liquid, low cost, and green solvent. The bibliometric indicator refers to 1,000 different relevant articles from 52 publishers with the largest number of articles produced by Elsevier, totaling 423 articles. The results showed that the peak of production occurred in 2014 and then decreased every year. The main reason for this increase is the need for cheap and environmentally friendly solvents to replace expensive and environmentally damaging conventional solvents, while the decline is due to the shift of interest into the field of applied chemistry. From the results of the Bibliometric analysis, there are 9 clusters with 126 related terms including low-cost, green solvent, application, study, and extraction. The most popular terms in 2022-2023 are related to fuel terms. This study shows the importance of bibliometric analysis in providing analytical data about what phenomena occur. This research is expected to help and become a reference for researchers in conducting and determining research themes to be taken.
Ethnoscience Study: Chemistry Aspects of the Local Practice of Mango (Mangifera Indica L.) Fruit Ripening with Carbide for Contextualized Chemistry Learning Ragadhita, Risti; Sriyati, Siti; Liliawati, Winny
Journal of Tropical Chemistry Research and Education Vol. 7 No. 1 (2025)
Publisher : Chemistry Education Department, Faculty of Tarbiyah and Education, UIN Sunan Kalijaga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/jtcre.2025.71-02

Abstract

This study aims to explore the chemistry aspects of local practices on Mango (Mangifera indica L.)fruit ripening process with calcium carbide to be integrated in contextual chemistry learning.Literature studies from scientific journals related to natural and artificial fruit ripening werecomparatively analyzed in relation to local knowledge and scientific concepts to identify potentialintegration into science learning (especially chemistry). The results showed that the integration ofnatural science with local practices, such as fruit ripening, is an innovative way to teach chemicalkinetics in a contextualized way. The study of the fruit ripening process can help students understandchemical concepts, especially chemical kinetics, in a more relevant and practical context. Thus,chemistry learning is not only limited to theory and laboratory experiments, but also includes realapplications that are relevant to the lives of students and society.
Why 200°C is Effective for Creating Carbon from Organic Waste (from Thermal Gravity (TG-DTA) Perspective)? Ragadhita, Risti; Nandiyanto, Asep Bayu Dani
ASEAN Journal for Science and Engineering in Materials Vol 2, No 2 (2023): AJSEM: Volume 2, Issue 2, September 2023
Publisher : Bumi Publikasi Nusantara

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Abstract

The purpose of this study was to evaluate the decomposition of organic waste into carbon microparticles under atmospheric conditions. Carbon microparticles are made by drying and carbonizing raw water hyacinth. Then, the carbon microparticles that have been produced are ground using a saw-milling apparatus. Carbon microparticles prepared from raw water hyacinth were heated in an electric heating furnace at a specific temperature for the analysis. The experimental results show that the thermal decomposition process has three steps. Water hyacinth is stable at temperatures below 100°C. As carbon decomposes at higher temperatures, the process of decomposition into smaller molecules occurs. Then, at temperatures ranging from 150 to 280°C, an effective carbonization process occurs to form carbon. The advantages gained, in this case, will provide a better understanding of how to use heat treatment on water hyacinth.
How to Calculate and Design Shell and Tube-type Heat Exchanger with a Single Heat Transfer Ragadhita, Risti; Nandiyanto, Asep Bayu Dani
ASEAN Journal for Science and Engineering in Materials Vol 3, No 1 (2024): AJSEM: Volume 3, Issue 1, March 2024
Publisher : Bumi Publikasi Nusantara

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Abstract

The process in the industry requires equipment with high efficiency, especially energy. This is closely related to the need to measure the heat-transfer process in heat exchangers. A study of the effectiveness of a heat exchanger is needed to increase the effectiveness of the heat exchanger because each heat exchanger product created has different effectiveness. This study aims to discuss and explain the calculations in the design of shell and tube-type heat exchangers. A step-by-step method for calculating heat exchanger designs is presented, including reviewing simple cases regarding heat exchanger design calculations. This research has the potential to be used as standard information on how to do step-by-step calculations for heat exchanger design.
Bibliometric Data Analysis of Research on Resin-Based Brake-Pads from 2012 to 2021 using VOSviewer Mapping Analysis Computations Nandiyanto, Asep Bayu Dani; Al Husaeni, Dwi Fitria; Ragadhita, Risti
ASEAN Journal for Science and Engineering in Materials Vol 2, No 1 (2023): AJSEM: Volume 2, Issue 1, March 2023
Publisher : Bumi Publikasi Nusantara

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Abstract

This study examines the mapping of research bibliometric data analysis related to resin-based brake pads. The research data was collected through the publish or perish reference manager application from the Google Scholar database. The title of the study material and abstract is used as a basis for searching for availability based on the specified keywords, namely "Resin-based Brake Pads". The search results show a total of 398 articles that are relevant and used in the mapping analysis. VOSviewer is used to complete the mapping process. The study period used as the study material was articles published in Google Scholar indexed journals from 2012 to 2021. We examined the number of published articles on resin-based brake pads and their relationship to problem areas using VOSviewer. The results showed that research on resin-based breake pads experienced an increase in research interest from 2017 to 2021. The smallest number of publications occurred in 2015 with 23 publications. There are main terms that are usually discussed and related to the research theme of resin-based brake pads, namely pad material, development and epoxy resin. This review is expected to serve as a starting point for conducting research by taking the field of study of resin-based brake pads.
Definition and Role of Sustainable Materials in Reaching Global Sustainable Development Goals (SDGs) Completed with Bibliometric Analysis Ragadhita, Risti; Nandiyanto, Asep Bayu Dani; Farobie, Obie; Kurniawan, Teguh; Bilad, M. Roil
ASEAN Journal for Science and Engineering in Materials Vol 5, No 1 (2026): AJSEM: Volume 5, Issue 1, March 2026
Publisher : Bumi Publikasi Nusantara

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Abstract

Sustainable materials are essential in achieving the Sustainable Development Goals (SDGs), particularly in clean energy, water purification, waste reduction, and green infrastructure. This study investigates the role of material innovation in supporting the SDGs using a Systematic Literature Review (SLR) and bibliometric analysis (from Scopus database (2015–2025) using keywords “Sustainable Material,” “Green Material,” and “SDGs”). The findings showed a growing research trend, especially after the COVID-19 pandemic, with significant contributions from chemistry, engineering, and environmental sciences. Materials like nanomaterials, biomaterials, biodegradable polymers, and waste-derived products contribute to SDG 6, 7, 9, 12, and 13. Innovations such as green nanotechnology, bio-based materials, and circular material design show strong potential to address global sustainability challenges. These materials not only support emission reduction and waste valorization but also encourage green job creation and sustainable production. This study highlights interdisciplinary pathways to align material science with sustainable development.
Memberdayakan Pendidik di Era AI: Identifikasi dan Edukasi Kesadaran Guru terhadap Teknologi AI dalam Dunia Pendidikan Gandidi, Indra Mamad; Mahmudatussa'adah, Ai; Sukrawan, Yusep; Nandiyanto, Asep Bayu Dani; Fiandini, Meli; Ragadhita, Risti
Jurnal Abdimas Kartika Wijayakusuma Vol 6 No 2 (2025): Jurnal Abdimas Kartika Wijayakusuma
Publisher : LPPM Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jakw.v6i2.904

Abstract

Proyek layanan masyarakat ini bertujuan untuk meningkatkan pemahaman dan kesiapan publik terhadap integrasi Kecerdasan Buatan (AI) dalam pendidikan dengan mempromosikan literasi AI dasar di kalangan pendidik dan siswa. Program ini secara khusus berfokus pada upaya mengungkap misteri teknologi AI dan menumbuhkan kesadaran kritis tentang implikasi etis, pedagogis, dan praktisnya dalam lingkungan belajar. Metode ini melibatkan serangkaian lokakarya interaktif dan sesi pelatihan langsung yang ditujukan kepada guru, calon guru, dan siswa sekolah menengah atas. Kegiatan ini dirancang untuk memperkenalkan konsep AI mendasar, mengeksplorasi aplikasi dunia nyata, dan memberikan pengalaman terbimbing dalam menggunakan alat berbasis AI yang mudah diakses untuk tujuan pendidikan. Hasilnya menunjukkan peningkatan signifikan dalam kesadaran dan pemahaman peserta tentang AI, sebagaimana tecermin dalam survei pra dan pascaprogram. Pendidik melaporkan kepercayaan diri yang lebih besar dalam membahas topik AI di kelas dan menunjukkan peningkatan keterampilan dalam mengintegrasikan alat berbasis AI ke dalam praktik mengajar. Siswa menunjukkan peningkatan rasa ingin tahu dan pemikiran kritis tentang peran AI dalam masyarakat dan pendidikan. Sebagai kesimpulan, program ini berhasil mencapai tujuannya dengan membekali peserta dengan pengetahuan dasar dan keterampilan praktis yang terkait dengan AI sehingga mempersempit kesenjangan literasi digital di komunitas sasaran. Dampak dari inisiatif ini meluas melampaui peserta langsung karena mendorong efek berantai pemberdayaan teknologi dalam lembaga pendidikan. Hal ini juga berkontribusi pada agenda nasional untuk membina warga negara yang siap menghadapi masa depan yang mampu menavigasi dan membentuk lanskap digital yang terus berkembang dengan perspektif yang etis dan terinformasi.
Heat Exchanger Design for WO3 Synthesis using Hydrothermal Method Lianawati, Maya; Nandiyanto, Asep Bayu Dani; Kurniawan, Teguh; Ragadhita, Risti
CHEMTAG Journal of Chemical Engineering Vol 4, No 1 (2023): CHEMTAG Journal of Chemical Engineering
Publisher : Universitas 17 Agustus 1945 (UNTAG) Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56444/cjce.v4i1.3636

Abstract

This study aims to analyze a heat exchanger (HE) design in the synthesisof WO3 using hydrothermal method. The data were calculated using Microsoft Excel application using several parameters and assumption. The result found that shell and tube designed heat exchanger have 80.04% effectiveness with initial heat transfer (Q) 383197 and some specifications included. However this result further calculation for fouling factor and appropriate value for TEMA standards.
A Bibliometric Analysis of Materials Engineering Education: Trends and Their Implications for Research and Education Ragadhita, Risti; Nandiyanto, Asep Bayu Dani
ASEAN Journal of Educational Research and Technology Vol 3, No 3 (2024): AJERT: VOLUME 3, ISSUE 3, December 2024
Publisher : Bumi Publikasi Nusantara

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Abstract

This paper critically examines the emerging trends, content evolution, and pedagogical innovations in materials engineering education. Using a systematic literature review approach, this study synthesizes key developments in materials engineering education focusing on enrolment trends in materials-related engineering disciplines and their implications for future research and educational practices. The result shows that the rapid technological, environmental, and industrial transformations of the 21st century have redefined the competencies required of materials engineers. As global challenges such as climate change, resource scarcity, digitalization, and sustainable development become more pressing, materials engineering education must undergo significant pedagogical and curricular reform to remain relevant. The findings aim to provide actionable insights for educators, policymakers, and curriculum developers in creating a responsive and sustainable materials engineering education system for the 21st century.
Science Teacher Identity in Environmental Chemistry Education Using the STEM Approach: A Bibliometric Analysis of Scopus Journals (2015–2024) Widyaningsih, Mia; Hernani, Hernani; Mudzakir, Ahmad; Supriatna, Asep; Kamaludin, Agus; Ragadhita, Risti
Journal of Educational Sciences Vol. 9 No. 5 (2025): Journal of Educational Sciences
Publisher : FKIP - Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jes.9.5.p.4471-4495

Abstract

This study aims to investigate how Environmental Chemistry education contributes to shaping the science teacher identity of prospective chemistry teachers through a STEM approach. The bibliometric analysis method was conducted using Scopus data (2015–2024), analyzed with Biblioshiny and VOS Viewer. From an initial 483 documents, 418 relevant works comprising articles, books, and reviews were selected based on keywords such as "Science Identity", "Science Teacher Identity", "STEM Education Approach", and "Environmental Science Chemistry". Biblioshiny was used to identify trends over the decade, including annual publication rates, key journals, influential authors, productive affiliations and countries, globally cited articles, and frequently occurring keywords. VOS Viewer further enhanced the analysis by offering three types of visualizations network, overlay, and density to illustrate the relationships and research trends among the selected publications. These visual tools reveal the interconnectedness of topics and highlight emerging areas in the field. The findings offer valuable insights into the global development of research at the intersection of science identity, STEM education, and environmental chemistry. This bibliometric exploration provides a foundation for researchers to identify current trends, understand the research landscape, and recognize gaps that can inform future studies.
Co-Authors A Nurdiana Abdulkareem Sh. Mahdi Al Obaidi Abdulkareem Sh. Mahdi Al-Obaidi Abdulkareem Sh. Mahdi Al-Obaidi Abidin, Muhamad Adani Ghina Puspita Sari Adzra Zahra Ziva Agus Kamaludin, Agus Agus Solehudin Agus Solehudin Ahmad Aminudin Aini, Rifti Nurul Al Husaeni, Dwi Fitria Al Husaeni, Dwi Novia Al-Obaidi, Abdulkareem Sh. Mahdi Anasdzaky, Fawwaz Rizqi Anceu Murniati Andika Purnama Shidiq Andika Purnama Shidiq Andri Syah Putra Anisa Noorlela Arif Hidayat Asep Bayu Dani Nandiyanto Asep Supriatna, Asep Astuti, Asita Puji Aulia Rahma, Sifa Bilad, M. Roil Budi Susetyo Chen, Fatimah Chen Citra Nurhashiva Citra Nurhashiva Dewi, Mauseni Wantika Dian Usdiyana Dwi Novia Al Husaeni Dwi Novia Al Husaeni Eddy Soeryanto Soegoto Endang Rusyani Fadhillah, Farid Fatimah, Siti Faturohman, Andika Haikal Fauzi, Fajar Miraz Fauzia Nur Awaliah Fiandini, Meli Fika Annisa Sabrina Fitri Febriyanti Fitri, Siti Hikmatul Hafidh, Ashary Fathul Haipan Salam HERNANI - Hernawati, Ati Hofifah, Siti Nur Indra Mamad Gandidi Intan Febriani, Lidia Irine Sofianty Jessica Veronica L Astuti Lianawati, Maya Lidia Intan Febriani Mahmudatussa'adah, Ai Mahmudatuss’adah, Ai Maya Lianawati Meli Fiandini Mentari Putri Aprilia Mia Widyaningsih Muhammad Aziz Muhammad Aziz Muhammad Irfansyah Maulana Muhammad Roil Bilad Muji Setiyo Nia Sutisna, Nia Noorlela, Anisa Nurhashiva, Citra Nyoman Ayu Kristinawati Obie Farobie R P Dewi Ratnengsih, Een Rina Maryanti Rizky, Karina Mulya Rofi Fadilah Madani Rosi Oktiani Rusyani, Endang Saepulloh, Anwar SAKINAH, PUTRI Salam, Haipan Salsabila, Annisa Rizky Santiuly Girsang, Gabriela Chelvina Sidik, Adi Permana Sifa Aulia Rahma Siti Sriyati Sri Anggraeni Sri Rahayu Sukrawan, Yusep Tedi Kurniawan Tedi Kurniawan Tedi Kurniawan Tedi Kurniawan Tedi Kurniawan Teguh Kurniawan Teguh Kurniawan Tria Nurwina Novianti Veronica, Jessica Wafa Raihana Arwa Widyaningsih, Mia Winny Liliawati Yuni Kartika Suryana Yusrianti Sabrina Kurniadianti Yustika Desti Yolanda