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All Journal Studia Religia: Jurnal Pemikiran dan Pendidikan Islam JURNAL POLI-TEKNOLOGI
Rus man
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Influence of Principalleadership and Teacher Teaching Performance on Learning Achievement of Students Class VIII of Al-Khairiyah Middle School (SMP) Surabaya Rus man
Studia Religia : Jurnal Pemikiran dan Pendidikan Islam Vol 2, No 2 (2018)
Publisher : UNIVERSITAS MUHAMMADIYAH SURABAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (655.816 KB) | DOI: 10.30651/sr.v2i2.2417

Abstract

Abstract: This study is to determine the effect of principal leadership, teacher teaching performance on student achievement. The method used in this study was quantitative statistics. To get good and correct data, researcher used structured questionnaires and documentation. After the data was collected, it was analyzed using the product moment correlation formula, then continued by using multiple correlation formula, after that, it was proceeded bythe percent formula. To make easier to calculate and conclude, the researcher complements the pedestrian table, helper table and formulas of Fcalculation and F table. The findings of this study can be concluded: first, the principal leadership and the teacher performance could be said to have an influence / positive with a statistical value of 30.08, Second, from the result of statistical analysis using Two Paths with manual calculation it can be calculated as 12.22 and a significance of 5,93, 100% = 56.25%. This means that the contribution  of teacher performance on the learning achievement of the eighth grade students of junior high school (SMP) Al-Khairiyah Surabaya that if it is presented in percentage reaching 56.25%. Keywords: Leadership, Performance, Achievement   
RANCANG BANGUN SISTEM MONITORING DAN KONTROL ENERGI LISTRIK PADA BEBAN 3 FASA MENGGUNAKAN ESP32 BERBASIS INTERNET OF THINK (IOT) Wendhi Yuniarto; Irman I; Suparno S; Rus man; Muhammad Diponegoro; Edi E
Jurnal Poli-Teknologi Vol. 22 No. 1 (2023)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v22i1.5102

Abstract

Monitoring dan kontrol sistem energi listrik pada beban 3 fasa di Laboratorium dan Bengkel Elektronika Politeknik Negeri Pontianak (POLNEP) masih dilakukan secara konvensional, ini menjadi suatu permasalahan pada pengaturan pembagian beban yang seimbang, efisiensi daya, perhitungan cost beban, serta perbaikan faktor daya pada Gedung Laboratorium dan Bengkel Elektronika POLNEP. Teknologi berbasis Internet of Think (IoT) saat ini memungkinkan untuk melakukan monitoring dan kontrol sistem energi listrik beban 3 fasa menggunakan ESP32 berbasis IoT secara realtime, serta dapat melakukan kontrol on/off system secara jarak jauh apabila diperlukan/terjadi keadaan emergency. Penelitian ini menggunakan metoda studi pustaka, metoda observasi, dan metoda eksperimental, serta penggunaan ESP32 dengan Protocol MQTT berbasis Platform IoT Thingsboard. Adapun sensor yang digunakan adalah sensor PZEM-004t untuk mengukur nilai tegangan, nilai arus, nilai faktor daya, serta nilai frekwensi dari jaringan listrik. Pada hasil implementasi didapat prosentase error perhitungan dan pengukuran daya pada beban 3 fasa sebesar; Fasa R = 0.04%, Fasa S = 0. 96%, dan Fasa T = 0.42% (prosentase error dibawah 1%), dari hasil penelitian ini telah sesuai dengan target penelitian, yaitu untuk dapat melakukan monitoring (tegangan, arus, daya, dan faktor daya beban 3 fasa), serta kontrol (on/off system 3 fasa)secara realtime. Kata Kunci: Monitoring dan Kontrol, 3 Fasa, IoT, ESP32.
Co-Authors Edi E Irman I Muhammad Diponegoro Suparno S Wendhi Yuniarto