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All Journal INVEST : Jurnal Inovasi Bisnis dan Akuntansi Jurnal Akuntansi, Manajemen, Bisnis dan Teknologi Skyhawk: Jurnal Aviasi Indonesia Research in Accounting Journal
Sulaiman Musa
University Brunei Darussalam
Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Social Sciences Other

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Analisis Dinamika Performa Engine Turbofan Pada Boeing 737- 300 Dalam Kondisi Idle Hingga Take-Off Rifan Satria Rizki; Candra Bayu Ardiansyah; Aisyah Winda; Hadi Prayitno; Sulaiman Musa
SKYHAWK : Jurnal Aviasi Indonesia Vol. 5 No. 1 (2025): SKYHAWK: Jurnal Aviasi Indonesia
Publisher : Indonesia Civil Pilot Academy Banyuwagi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52074/skyhawk.v5i1.312

Abstract

This article discusses the performance analysis of the CFM56-3-B1 turbofan engine used on the Boeing 737-300 aircraft under various operational conditions. This study was conducted to understand the engine performance under different flight conditions, such as minimum idle, approach idle, maximum continuous, and take off. This study was conducted using a qualitative method using a descriptive approach and literature study. The results of the analysis prove that the performance of the fan, booster, and high-pressure compressor (HPC) is higher than its ideal value due to compressor imbalance and leakage that causes an increase in compression temperature. Furthermore, it was found that during the take-off process the thermal efficiency became high with an actual efficiency of 37%, but still lower than the ideal efficiency of 47%, which was caused by material friction and environmental factors. While the maximum thrust was achieved thanks to the combination of hot and cold nozzle designs. The conclusion shows that engine efficiency is affected by material friction and environmental conditions, which have an impact on reducing thermal efficiency by 9.59%. Suggestions are given to improve thermal efficiency and thrust by optimizing airflow and engine cooling.
Shariah Governance, Reputation and Customer Loyalty of Islamic Banks Nanda Suryadi; Muhamad Albahi; Norman Gisatriadi; Sulaiman Musa
INVEST : Jurnal Inovasi Bisnis dan Akuntansi Vol. 6 No. 1 (2025): INVEST : Jurnal Inovasi Bisnis dan Akuntansi
Publisher : Lembaga Riset dan Inovasi Al-Matani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55583/invest.v6i1.1189

Abstract

This study aims to analyze the influence of sharia governance and reputation on customer loyalty at Bank Riau Kepri Syariah, both partially and simultaneously. In an effort to maintain customer loyalty, Islamic banks must continuously improve their corporate governance systems to remain competitive compared to other banks. Additionally, Islamic banks are obligated to comply with sharia principles in their instruments, products, operations, practices, and management. This research employs a quantitative approach by distributing questionnaires to 100 customers. The data were analyzed using linear regression methods with the assistance of IBM-Statistic software. The results indicate that both sharia governance and reputation variables, individually and collectively, have a positive and significant impact on customer loyalty. These findings suggest that the implementation of good sharia governance and a positive reputation can enhance customer loyalty at Bank Riau Kepri Syariah.
Shariah Governance, Reputation and Customer Loyalty of Islamic Banks Nanda Suryadi; Muhamad Albahi; Norman Gisatriadi; Sulaiman Musa
INVEST : Jurnal Inovasi Bisnis dan Akuntansi Vol. 6 No. 1 (2025): INVEST : Jurnal Inovasi Bisnis dan Akuntansi
Publisher : Lembaga Riset dan Inovasi Al-Matani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55583/invest.v6i1.1189

Abstract

This study aims to analyze the influence of sharia governance and reputation on customer loyalty at Bank Riau Kepri Syariah, both partially and simultaneously. In an effort to maintain customer loyalty, Islamic banks must continuously improve their corporate governance systems to remain competitive compared to other banks. Additionally, Islamic banks are obligated to comply with sharia principles in their instruments, products, operations, practices, and management. This research employs a quantitative approach by distributing questionnaires to 100 customers. The data were analyzed using linear regression methods with the assistance of IBM-Statistic software. The results indicate that both sharia governance and reputation variables, individually and collectively, have a positive and significant impact on customer loyalty. These findings suggest that the implementation of good sharia governance and a positive reputation can enhance customer loyalty at Bank Riau Kepri Syariah.
Analysis of Capital Structure, Liquidity and Firm Size on Financial Performance and Firm Value in Technological Sector Evelyn Wijaya; Fuma Wijaya; Stefani Chandra; Sulaiman Musa
Research in Accounting Journal (RAJ) Vol. 6 No. 2 (2025): RAJ (Research in Accounting Journal)
Publisher : Yayasan Pendidikan Riset dan Pengembangan Intelektual (YRPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37385/raj.v6i2.10526

Abstract

Indonesia’s technology industry is experiencing strong growth prospects, supported by solid fundamentals and the rapid expansion of fintech infrastructure. The digital economy’s Gross Merchandise Value (GMV) is projected to grow at a compound annual growth rate (CAGR) of 14% during 2024–2030, driven by continuous innovation in e-commerce, increasing digital adoption through QRIS, and the strengthening of technology-based financial ecosystems. This study aims to examine the effect of capital structure, liquidity, and firm size on financial performance and firm value in the technology sector. The research employs secondary data collected through a purposive sampling technique, resulting in a sample of 15 companies. Data were analyzed using descriptive statistics and structural equation modeling (SEM) with SmartPLS. The results indicate that (1) capital structure, liquidity, and firm size have a negative and insignificant effect on financial performance, and (2) capital structure, liquidity, firm size, and financial performance have a positive but insignificant effect on firm value. These findings suggest that internal financial characteristics have not yet demonstrated a statistically significant role in determining financial performance and firm value within Indonesia’s technology sector.
Determinan Nilai Perusahaan di Sektor Kesehatan: Peran Moderasi Kebijakan Dividen pada Perusahaan Tercatat BEI (2020–2024) Nanda Suryadi; Yayu Kusdiana; Arie Yunelly; Sulaiman Musa
Jurnal Akuntansi, Manajemen, Bisnis dan Teknologi Vol 6 No 2 (2026): Jurnal Akuntansi, Manajemen, Bisnis dan Teknologi Edisi Agustus 2026
Publisher : Sekolah Tinggi Ilmu Ekonomi Mahaputra Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56870/a12n3e08

Abstract

This study is motivated by the observed decline in average share prices among healthcare sector companies listed on the Indonesia Stock Exchange between 2020 and 2024, indicating an overall weakening of firm value. The research aims to examine and analyze the extent to which profitability, firm size, leverage, and insider ownership influence firm value, with dividend policy serving as a moderating variable. A quantitative approach is employed, grounded in Signaling Theory and Agency Theory. The sample was selected using purposive sampling, resulting in eight healthcare sector companies and a total of 40 observation units. Data were sourced from the companies' annual financial reports and analyzed using panel data regression with the Fixed Effect Model (FEM) approach, utilizing EViews software. The findings reveal that profitability has a positive and significant effect on firm value, whereas firm size and leverage do not show a significant influence. Conversely, insider ownership is found to have a negative effect on firm value. While dividend policy does not moderate the relationships between profitability, firm size, or leverage and firm value, it is shown to strengthen the influence of insider ownership on firm value. An Adjusted R-Squared coefficient of 87.9% indicates that the developed model possesses high explanatory power regarding the variation in firm value.
Co-Authors Aisyah Winda Arie Yunelly Candra Bayu Ardiansyah Chandra, Stefani Evelyn Wijaya Fuma Wijaya Hadi Prayitno Muhamad Albahi Norman Gisatriadi Rifan Satria Rizki Suryadi, Nanda Yayu Kusdiana