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Production of Brake Pad from Epoxy Resin: From Polymerization Concept to the Experiment with Analysis of Mechanical Properties Nandiyanto, Asep Bayu Dani; Fiandini, Meli; Al Husaeni, Dwi Novia; Ragadhita, Risti; Hofifah, Siti Nur
Jurnal Penelitian Enjiniring Vol 25 No 2 (2021)
Publisher : Center of Techonolgy (COT), Fakultas Teknik, Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jpe.112021.05

Abstract

The purpose of this study was to determine the effect of variations in the use of catalysts on the performance of brake pads. The performance testing is compressive strength and puncture strength. The resin is formed from a mixture of Bisphenol A-epichlorohydrin and cycloaliphatic amine. Based on the results of the study, it was found that brake pads with samples B and C had better performance. The hardness values of samples A, B, and C are 307.4; 331.1; and 334.3 N, respectively. The ratio of resin and catalyst mixture affects the performance of the brake pad. The more catalysts added, the faster the hardening process. It is hoped that this research can be the basis for developing brake pads.
How Technology Can Change Educational Research? Definition, Factors for Improving Quality of Education and Computational Bibliometric Analysis Al Husaeni, Dwi Fitria; Al Husaeni, Dwi Novia; Nandiyanto, Asep Bayu Dani; Rokhman, Mauhibur; Chalim, Saefuddin; Chano, Jiraporn; Al Obaidi, Abdulkareem Sh. Mahdi; Roestamy, Martin
ASEAN Journal of Science and Engineering Vol 4, No 2 (2024): AJSE: September 2024
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ajse.v4i2.62045

Abstract

This study explains all factors relating to the definition and current research trends in how technology can improve education. This study explains how strategies are developed to create and improve the quality of education, including communication, the input of technology (such as IT, ICT, AI, AR, etc.), curriculum and education level, and the relationship between social studies, humanities, science, and industry, as well as management and facilities. We demonstrated current technology using social media, for educators to implement it to improve the teaching and learning process. Bibliometric and theoretical analysis, based on the Google Scholar database from 2018-2023, was used. The search results found 988 articles with the keywords of "Education Technology" AND "Indonesia". Research on educational technology in Indonesia has increased every year. 113 terms were found based on network visualization, which was divided into 6 clusters. The “Indonesia” term appeared 596 times and the term “education technology” appeared 133 times. Co-authorship analysis found 2035 authors have contributed. Completing this research leads to the creation of future research, determining what next research subjects can appear, especially in the field of education.
Research Trends from The Scopus Database Using Keyword Water Hyacinth and Ecosystem: A Bibliometric Literature Review Nandiyanto, Asep Bayu Dani; Fiandini, Meli; Al Husaeni, Dwi Novia
ASEAN Journal of Science and Engineering Vol 4, No 1 (2024): AJSE: March 2024
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ajse.v4i1.60149

Abstract

The problem of water hyacinth (Eichhornia crassipes) invading aquatic biota ecosystems is a hot issue that is currently being discussed throughout the world. Due to the many solutions proposed in academia for their management, mitigation, and utilization, it is necessary to investigate through systematic research. Based on this, this study aims to present research developments on the topic of water hyacinths and ecosystems using bibliometric analysis. In this research, a total of 227 articles from 2000 to 2023 years regarding the keywords “water hyacinth” AND “ecosystem” were taken from Scopus which was used for further analysis. To accomplish the bibliometric analysis, the software programs VOSviewer was used. Based on the findings, it shows that the number of article publications over the last 23 years (2000-2023) has experienced fluctuating changes which are divided into three periods. The pioneering and growth periods were identified in 2000-2008 and 2009-2015. Meanwhile, the acceleration period will occur in 2016-2023. According to the results of data visualization, it was found that there were 4 clusters. The keyword "water hyacinth" is used more frequently, especially in 2016. The most productive affiliate publishing article is the University of California. Meanwhile, the most productive country is India. In addition, most productive authors come from India, namely Kanna, S. and Dube, T.
Progress in the Developments of Heat Transfer, Nanoparticles in Fluid, and Automotive Radiators: Review and Computational Bibliometric Analysis Nandiyanto, Asep Bayu Dani; Al Husaeni, Dwi Novia; Obaidi, Abdulkareem Sh. Mahdi Al; Hammouti, Belkheir
Automotive Experiences Vol 7 No 2 (2024)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.10580

Abstract

This research aims to determine the development of the number of scientific publications in the field of particulate matter; the number of publications from each country that publish articles on heat transfer, nanoparticles, and automotive radiators; articles with the highest number of citations; and visualization publication development map based on keywords. To achieve this goal, quantitative descriptive research was carried out using bibliometric analysis with the help of the publish or perish (PoP) application to collect data and VOSviewer to visualize related research topics. The article data taken is limited to 2018-2023. In addition, the terms heat transfer, nanoparticles, and automotive radiators are used as keywords in collecting article data using the pop application. Research on heat transfer, nanoparticles, and automotive radiators has increased in 2020 and India has become one of the countries that has contributed many publications on this topic. From the mapping results, research on heat transfer, nanoparticles, and automotive radiators is still being carried out frequently, especially in early 2020-2021. This research can help academics determine which problems to research and can be used as a reference for further research.
Domestic waste (eggshells and banana peels particles) as sustainable and renewable resources for improving resin-based brakepad performance: Bibliometric literature review, techno-economic analysis, dual-sized reinforcing experiments, to comparison ... Nandiyanto, Asep Bayu Dani; Ragadhita, Risti; Fiandini, Meli; Al Husaeni, Dwi Fitria; Al Husaeni, Dwi Novia; Fadhillah, Farid
Communications in Science and Technology Vol 7 No 1 (2022)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.7.1.2022.757

Abstract

The objective of this study is to develop a new environmentally-friendly brake pad made from eggshells (Es) and banana peels (BPs) as reinforcement agents. E and BP particles as dual reinforcement with various compositions were combined. The E/BP mixture was then embedded on a polymer matrix composing a resin/hardener mixture in a 1:1 ratio. As a standard, brake pads using a single reinforcement of E and BP particles were also fabricated. Physical properties (i.e. particle size, surface roughness, morphology, and density), as well as mechanical properties (i.e. hardness, wear rate, and friction coefficient properties) were investigated. It was observed that using dual reinforcements was preferable (compared to using single reinforcements) because they had a synergistic effect on the mechanical properties of the brake pad. The best mechanical properties were found in dual reinforcements of brake pad specimens using E/BP particles with a higher BP ratio in which the value of the stiffness test, puncture test, wear rate, and coefficient of friction were 4.5 MPa, 86.80, 0.093×10-4 g/s.mm2, and 1.67×10-4, respectively. A high BP particle ratio played a dominant role in dual reinforcements, increasing the resin's bonding ability and resulting in good adhesion between the reinforcement and matrix. When compared to commercial brake pads, the brake pad specimens fabricated in this study met the standards. The techno-economic analysis also confirmed the prospective production of brake pads from E and BP particles (compared to commercial brake pads). From this research, it is expected that environmentally friendly and low-cost brake pads can be used to replace the dangerous friction materials.
Developing Computational Thinking Questions for Upper Elementary Students with Mild Autism Spectrum Disorder Al Husaeni, Dwi Novia; Munir, M.; Rasim, R.; Santoso, Yoga Budhi; Prabawa, Harsa Wara; Kusnendar, Jajang
Indonesian Journal of Community and Special Needs Education Vol 4, No 2 (2024): IJCSNE: September, 2024
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijcsne.v4i2.78944

Abstract

This research developed questions to measure the improvement in computational thinking (CT) abilities of children with mild autism spectrum disorder (ASD). A quantitative approach was used in this research, with data collection through filling out expert judgment questionnaires by material experts and questions related to CT. The study results showed that the questions created were considered good for use in improving the CT abilities of children with ASD. The results of material expert validation showed an average value of 78.32%, which falls into the good category. In contrast, the question expert validation gives a perfect score, which confirms the validity of the questions created for the material and learning objectives used. The question instrument developed includes three main components of CT, namely decomposition, pattern recognition, and algorithm design, with a design that uses images and visual elements as well as simple instructions to facilitate understanding and involvement in children with ASD. This study bring a positive contribution to the development of more inclusive and effective CT learning for children with ASD.
Bibliometric Analysis of Briquette Research Trends During the Covid-19 Pandemic Al Husaeni, Dwi Novia
ASEAN Journal for Science and Engineering in Materials Vol 1, No 2 (2022): AJSEM: Volume 1, Issue 2, September 2022
Publisher : Bumi Publikasi Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to analyze the scope of research on briquettes using bibliometric analysis and data mapping processes. The research data used is obtained from published journals. The search was conducted using the publish or perish application with the keyword "briquette'. The search process is based on topic areas with titles, keywords, and abstracts in the study material. The mapping process is carried out using VOSviewer. A total of 973 relevant articles were found. The results showed that research on briquettes has decreased over the past three years, namely 2020, 2021, and 2022. The decline was caused by the Covid-19 pandemic. Through VOSviewer we analyze the number of articles that have been published about the material and its relationship with the topic area. This review can certainly provide a reference point for further research related to the material.
Machine Learning-Based Clustering for Program Learning Outcomes in Higher Education: A Systematic Review Wahyudin, W.; Riza, Lala Septem; Erlangga, E.; Al Husaeni, Dwi Novia
Brilliance: Research of Artificial Intelligence Vol. 5 No. 1 (2025): Brilliance: Research of Artificial Intelligence, Article Research May 2025
Publisher : Yayasan Cita Cendekiawan Al Khwarizmi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/brilliance.v5i1.5953

Abstract

This study aims to systematically review the application of machine learning-based clustering algorithms in the evaluation of Graduate Learning Outcomes (CPL) in higher education. The review was conducted using the PRISMA approach on articles published in the Scopus database during the period 2020–2025. A total of 52 articles were analyzed to identify trends in the algorithms used, implementation challenges, and their contributions to curriculum development. The findings show that algorithms such as K-Means, Hierarchical Clustering, and Fuzzy C-Means are frequently used in mapping student competencies. However, their implementation in practice remains limited due to insufficient model validation, lack of justification for algorithm selection, and a disconnect between analytical results and academic decision-making. This situation reflects a broader issue in the integration of machine learning into educational contexts, where the technical potential of algorithms has not yet been fully translated into meaningful pedagogical impact. As a conceptual contribution, this study develops a machine learning-based computational model that includes the stages of CPL data collection, preprocessing, cluster modeling, result evaluation, and integration into curriculum policy. The proposed model is designed to enhance transparency, adaptability, and evidence-based decision-making in curriculum management systems. This study also highlights the need for the development of soft clustering techniques, integration with digital learning systems, and attention to the ethics and transparency of algorithms in data-based evaluation. Thus, this study emphasizes the importance of bridging the gap between algorithmic analysis and applicable educational strategies within higher education institutions.
Analisis Trend Penelitian Penggunaan Algoritma Penjadwalan serta Faktor yang Mempengaruhinya: Analisis Bibliometrik R dan Pemetaan VOSviewer Al Husaeni, Dwi Novia; Kusnendar, Jajang
Jurnal Nasional Teknologi dan Sistem Informasi Vol 11 No 1 (2025): April 2025
Publisher : Departemen Sistem Informasi, Fakultas Teknologi Informasi, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/TEKNOSI.v11i01.2025.57-66

Abstract

Scheduling is one method used to avoid problems with the operating system. Scheduling has various algorithms including Round Robin, First in First out, and SJF. This research aims to analyze the literature review of scheduling algorithm research trends and the factors that influence them through R bibliometric mapping analysis on research that has been published in Scopus and Google Scholar indexed journals from 2019 to 2023. The method used in this research is R bibliometric analysis . Publish or perish is used as a search application and VOSviewer is used as a data mapping application. The results of the research show that the development of the number of research publications regarding Scheduling Algorithms indexed by Google Scholar from 2019 - 2023 has decreased quite significantly (383 (2019), 314 (2020), 195 (2021), 84 (2022), and 20 (2023). )). Meanwhile, based on the Scopus database, research developments regarding scheduling algorithms experienced fluctuations, namely decreasing in 2021 (200 articles) and increasing in 2022 (830 articles). In 2020 there was a significant decline. Based on the VOSviewer mapping results, it is known that the process scheduling algorithm that is widely used for research is the Round Robin (RR) algorithm which is in cluster 1, cluster 3, and cluster 7. The reason why the RR algorithm is in good condition. This request is because it is able to provide fairness in divides CPU processing time between running processes.
Exploring Global Research Trends on the Integration of Information Technology in Pragmatic Studies: A Bibliometric Analysis Haristiani, Nuria; Al Husaeni, Dwi Novia; Judiasri, Melia Dewi; Herniwati, H.
ASEAN Journal of Educational Research and Technology Vol 4, No 2 (2025): AJERT: VOLUME 4, ISSUE 2, September 2025
Publisher : Bumi Publikasi Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to explore global research trends on information technology integration in pragmatics studies through a bibliometric approach. Data were collected from the Scopus database over the past decade (2015–2024), resulting in 30 documents being analyzed. The analysis included document distribution based on publication type, institutional affiliation, author's country of origin, and keyword mapping using VOSviewer software. The analysis results show that most publications come from the United States, followed by the Russian Federation and the United Kingdom. The most productive institutions are RUDN University and Curtin University. The most dominant document type is scientific journal articles. Based on keyword co-occurrence analysis, three main clusters were identified: (1) technology integration approaches and processes, (2) evidence-based studies in educational and language contexts, and (3) communication applications and learning effectiveness. These findings provide a comprehensive overview of the research landscape in information technology integration in pragmatics and can serve as a strategic reference for academics and practitioners in designing more effective language learning innovations in the digital era.