Article Per Year (5 Year)
p-Index From 2021 - 2026
0.408
P-Index
This Author published in this journals
All Journal Jurnal Teknik Industri Terintegrasi (JUTIN) General Multidisciplinary Research Journal
Umara, Yunita
Unknown Affiliation
Religion Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Health Professions Industrial & Manufacturing Engineering Mechanical Engineering Public Health

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

Found 2 Documents
Search

 1 
Material Paduan Berbasis Aluminida untuk Aplikasi Suhu Tinggi di Sektor Penerbangan dan Luar Angkasa Umara, Yunita; Rizki, Ilham; Cahaya, Natasya Putri
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 9 No. 1 (2026): January
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v9i1.54630

Abstract

This research focuses on the development of aluminide-based alloy materials for high-temperature applications in the aviation and aerospace sectors. Aluminide alloys, such as TiAl and NiAl, are known for their excellent oxidation resistance and mechanical properties at high temperatures, but still face challenges regarding toughness at room temperature. This research aims to optimize alloy composition and manufacturing methods, particularly through additive manufacturing approaches, to enhance material performance under extreme conditions. The methods used include alloy composition design, fabrication using powder metallurgy and additive manufacturing, as well as mechanical property and oxidation resistance testing. The research results indicate that the addition of alloying elements such as Nb and Mo can improve oxidation resistance and microstructural stability at high temperatures. This research also contributes to the development of the material research ecosystem in Indonesia and can support self-reliance in the production of high-temperature materials for the aviation and aerospace sectors.
The Influence of Learning Motivation, Family Environment, and Discipline on Student Learning Outcomes Umara, Yunita; Rizki , Ilham; Zaydan, Sadid; Rifansyah, Muhammad Rio; Cahaya, Natasya Putri
General Multidisciplinary Research Journal Vol. 3 No. 1 (2026)
Publisher : Global Sustainability Research Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63453/general.v3i1.72

Abstract

Introduction: Improving student learning outcomes is a strategic issue in national education development due to fluctuating literacy and numeracy achievements and differences in academic performance among students. Learning outcomes are influenced by various internal and external factors. Learning motivation, as an internal factor, plays a crucial role in encouraging students' active involvement in the learning process, while learning discipline, as a behavioral factor, determines students' consistency and effectiveness in managing learning activities. On the other hand, the family environment, as an external factor, contributes through emotional support, learning facilities, and parenting styles. Methods: This study used a quantitative approach with a survey design. Data were collected through standardized questionnaires to measure learning motivation, family environment, and discipline, as well as documentation of students' academic grades. Data analysis was performed using multiple linear regression with the classical assumption test, t-test, F-test, and coefficient of determination. Results: The results showed that all three variables simultaneously had a positive and significant effect on learning outcomes. Partially, learning motivation and discipline had a significant effect, while the family environment showed a positive effect with moderate significance. Conclusion and Suggestion: This study emphasizes the importance of strengthening student learning motivation and discipline, supported by the role of the family. It is recommended that there be synergy between schools and parents and the development of further research with broader variables and approaches.
Co-Authors Cahaya, Natasya Putri Rifansyah, Muhammad Rio Rizki , Ilham Rizki, Ilham Zaydan, Sadid