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All Journal KURVA S JURNAL MAHASISWA JURNAL INSTEK (Informatika Sains dan Teknologi) Dinasti International Journal of Digital Business Management Journal of System and Computer Engineering Justness : Jurnal Hukum Politik dan Agama Jurnal Media Teknologi Jurnal Mosfet Jurnal Sintaks Logika (JSilog) Al-Usariyah: Jurnal Hukum Keluarga Islam
MUHAMMAD ZAINAL
UNTAG Samarinda
Religion Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Social Sciences Other

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Perancangan Prototipe Pembangkit Listrik Tenaga Angin dengan Vertical Axis Wind Turbin Zainal, Muhammad; Tri Putra, Kurniawan; Amri, Ulil
Jurnal Mosfet Vol. 3 No. 2 (2023): 2023
Publisher : Fakultas Teknik Universitas Muhammadiyah Parepare (FT-UMPAR)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/jmosfet.v3i2.2673

Abstract

Pada saat ini penggunaan energi listrik semakin meningkat seiring pertumbuhan kemajuan disektor perekonomian, industri dan berbagai bidang lainya. Energi listrik yang umumnya menggunakan bahan bakar konvesional seperti minyak bumi, gas, dan batubara menyebabkan ketersedianya di alam semakin menipis. Upaya yang dilakukan untuk mengatasi masalah tersebut yaitu menggunakan Energi Baru dan Terbarukan (EBT) yang tidak akan pernah habis bersumber dari alam seperti angin, matahari, dan air, sehingga penelitian ini dilakukan perancangan alat pembangkit listrik skala kecil menggunakan turbin vertical sebagai penggerak mula pada pembangkit listrik tenaga angina, dari hasil penelitian yang telah dilakukan dengan menggunakan pembangkit listrik menggunakan turbin vertikal bisa menghasilkan tegangan terendah rata- rata sebesar 4,81 V dan tegangan rata- rata tertinggi 20,13 V, dengan intensitas kecepatan angin mulai dari 0,7- 4,5 m/s.
The Effect of Leadership Style and Sustainable Work Environment on Employee Performance with Work Motivation as a Mediating Variable at the Directorate General of Chemical, Pharmaceutical, and Textile Industries, Ministry of Industry, Republic of Indonesia Zainal, Muhammad; Aktif Budiono, Nur
Dinasti International Journal of Digital Business Management Vol. 6 No. 2 (2025): Dinasti International Journal of Digital Business Management (February - March
Publisher : Dinasti Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/dijdbm.v6i2.4246

Abstract

This study aims to determine the effect of leadership style, work environment, and work motivation on employee performance. The type of research approach that the author uses is quantitative as a scientific method because the data is concrete, objective, measurable, rational and systematic. The sample used in this study used a non-probability sample method with the sampling technique being purposive sampling and the population in this study were employees at the Directorate General of Chemical Pharmaceutical and Textile Industries, Ministry of Industry totaling 161 people and a sample of 112 respondents was obtained. Data processing techniques in this study used the help of Structural Equation Model (SEM) based on Partial Least Square (PLS). The results showed that leadership style has a positive and significant effect on employee performance, work environment has a positive and significant effect on employee performance, work motivation has a positive and significant effect on employee performance, leadership style has a positive and significant effect on employee work motivation, work environment has a positive and significant effect on employee work motivation, leadership style mediated by work motivation has a significant effect on employee performance, work environment mediated by work motivation has a significant effect on employee performance at the Directorate General of Pharmaceutical and Textile Chemical Industry, Ministry of Industry of the Republic of Indonesia.
Application of the C45 Decision Tree Method in Evaluating the Potential and Contribution of Retribution to Pad: Case Study of Barru Regency Arfiansyah, Wahyu; Zainal, Muhammad; Wahyuddin, Wahyuddin; Masnur, Masnur
Journal of System and Computer Engineering Vol 6 No 2 (2025): JSCE: April 2025
Publisher : Universitas Pancasakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61628/jsce.v6i2.1834

Abstract

Local Original Revenue (PAD) is a vital source for financing regional development, with levies as the main component. However, the main challenge faced is the inability of conventional evaluation methods to identify factors that influence the contribution of levies to PAD effectively. This study aims to evaluate the potential and contribution of levies to PAD by applying the Decision Tree C4.5 method. This research method uses a quantitative data-based approach, by analyzing tax data from various sectors, including Hotel Tax, Parking Tax, Entertainment Tax, and Advertising Tax. The results of the study indicate that the C4.5 method successfully identified more complex contribution patterns and provided a deeper understanding of the influence of seasonal and external factors on tax contributions. Entertainment Tax and Hotel Tax showed the largest contributions in certain periods, while Parking Tax showed greater stability throughout the year. The implications of this study indicate that the application of C4.5 can improve the effectiveness of PAD management, by providing a basis for tax policies that are more data-based and responsive to economic and seasonal fluctuations.
APLIKASI PENCARIAN ALOKASI VAKSIN DAN RUMAH SAKIT COVID/NON-COVID BERBASIS ANDROID: APLIKASI PENCARIAN ALOKASI VAKSIN DAN RUMAH SAKIT COVID/NON-COVID BERBASIS ANDROID Nirwandar, Aries; Zainal, Muhammad; Wahyuddin, Wahyuddin; Basri, Muhammad; Marlina, Marlina
Jurnal Media Teknologi Vol. 12 No. 1 (2025): Jurnal Media Teknologi
Publisher : Fakultas Teknik UNIGAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/jmt.v12i1.5318

Abstract

Pandemi Covid-19 menimbulkan permasalahan bagi masyarakat dalam memperoleh informasi terkait ketersediaan vaksin dan lokasi rumah sakit Covid maupun non-Covid. Penelitian ini bertujuan merancang aplikasi berbasis Android yang menyediakan informasi real-time mengenai alokasi vaksin dan rumah sakit. Metode yang digunakan adalah Research and Development melalui tahapan analisis, perancangan, implementasi, dan pengujian. Data diperoleh dari studi literatur, observasi, dan wawancara. Aplikasi dibangun menggunakan Android Studio dengan integrasi Google Maps API serta basis data terstruktur untuk pengelolaan stok vaksin. Hasil penelitian menunjukkan aplikasi mampu menampilkan informasi ketersediaan vaksin dan lokasi rumah sakit secara akurat, dengan pengujian blackbox menunjukkan kinerja sistem berjalan baik. Penelitian ini diharapkan berkontribusi menghadirkan solusi digital mobile untuk mempercepat akses informasi kesehatan dan memperkaya pengembangan ilmu sistem informasi kesehatan berbasis mobile
Co-Authors Aktif Budiono, Nur Alam, Syahirun Arfiansyah, Wahyu Arya, Muhammad Hernan Corida, Marselus Setiawan Deni Irawan, Deni Emil Fazil, Muhammad Ismail, Muh Lestari Zakaria, Puji Ayu Marlina Marlina Masnur Masnur Muhammad Basri Multi Lahan, Sumantri Nasution, Ali Napiah Nirwandar, Aries Pawelloi, A. Irmayani Suryadi, Mohammad Anton Tri Putra, Kurniawan Wahyuddin Wahyuddin