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All Journal Sainteknol : Jurnal Sains dan Teknologi Journal of Natural Sciences and Mathematics Research UPEJ Unnes Physics Education Journal Journal of Creativity Student Physics Communication
Sujarwata Sujarwata, Sujarwata
Universitas Negeri Semarang
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Education Materials Science & Nanotechnology Physics

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Journal : Physics Communication

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SIMULASI KENDALI PROPORTIONAL INTEGRAL DERIVATIVE DAN LOGIKA FUZZY PADA SISTEM EKSITASI AUTOMATIC VOLTAGE REGULATOR DENGAN SIMULINK MATLAB Jati, Pamungkas; Sunarno, Sunarno; Sujarwata, Sujarwata
Physics Communication Vol 1, No 1 (2017): February 2017
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (614.5 KB) | DOI: 10.15294/physcomm.v1i1.9007

Abstract

AVR (Automatic Voltage Regulator) is the primary device for a generator stability, therefore performance of an AVR must be considered. Implementation of controller can be used to improve performance of an AVR. Now the controller is widely applied in industry, namely PID and fuzzy. Modelling carried out to determine the performance of AVR. The modelling of AVR system and its controller are built using Matlab Simulink. PID controller is designed by tuning method of Ziegler-Nichols (ZN) and Tyreus-Luyben (TL) while fuzzy controller is built by two input variables and one output variable, each consists of 7 MF so can be obtained 49 fuzzy rules. Based on transient response analysis, PID controller with TL method is better than ZN method and overall the comparison results of controller demonstrated that the PID controller provides a better performance in three parameters (rise time, peak time, and settling time), while the fuzzy controller provides a better performance in overshoot parameter.
IDENTIFIKASI KESULITAN BELAJAR FISIKA BERDASARKAN KEMAMPUAN MULTI REPRESENTASI Theasy, Yoan; Wiyanto, Wiyanto; Sujarwata, Sujarwata
Physics Communication Vol 1, No 2 (2017): August 2017
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (337.833 KB) | DOI: 10.15294/physcomm.v1i2.10404

Abstract

Multi representasi dapat digunakan untuk mengetahui tingkat pemahaman yang dimiliki oleh mahasiswa. Identifikasi pola kesulitan belajar fisika berdasarkan kemampuan multi representasi terhadap pemecahan masalah telah dilakukan melalui metode kualitatif model grounded theory, dan dilaksanakan pada mahasiswa pendidikan Fisika Unnes Tahun akademik 2016/2017. Bentuk multi representasi yang digunakan adalah verbal (V), gambar/diagram (D), grafik (G), dan matematis (M). Kemampuan multi representasi mahasiswa kategori tinggi, sedang dan rendah memiliki kecenderungan representasi matematis (M) secara berurutan sebesar 67,85%, 79,92%, dan 75%. Mahasiswa kategori tinggi memiliki pola kesulitan belajar fisika yaitu, merencanakan solusi (memahami bahasa soal dan menentukan tahap penyelesaian) serta melaksanakan rencana solusi (menentukan persamaan), mahasiswa kategori sedang memiliki pola kesulitan belajar merencanakan solusi (memahami bahasa soal dan menentukan solusi), melaksanakan rencana solusi (proyeksi gaya, menentukan komponen gaya yang bekerja pada benda, menentukan persamaan, pengaplikasian, perhitungan), dan mahasiswa kategori rendah yaitu merencanakan solusi (memahami bahasa soal), melaksanakan rencana solusi (menentukan persamaan, membedakan simbol-simbol fisika, pengaplikasian persamaan, dan perhitungan) serta tidak melakukan pengecekan dan evaluasi.
INTEGRATION OF INQUIRY LABORATORY ACTIVITIES IN ARCHIMEDES’ LAW LEARNING Arianto, Ivan Setia; Wiyanto, Wiyanto; Sujarwata, Sujarwata
Physics Communication Vol 2, No 2 (2018): August 2018
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (431.936 KB) | DOI: 10.15294/physcomm.v2i1.13477

Abstract

This research is aimed to know which ability students can develop through inquiry laboratory activities in Archimedes? law learning and its application to cognitive learning result. This research used mixed method. The quantitative data which were pre-test, post-test, and students? worksheets were taken to know the cognitive learning outcomes of students. Qualitative data presented in this research were video assisted observations and interviews with students as learning process. Those data were used to analyze the ability in observing, questioning, hypothesizing, designing, experimenting, interpreting data, and concluding which students can develop through inquiry laboratory activities in Archimedes? law learning. The N-gain shows that the inquiry laboratory activities in Archimedes? law learning improves students cognitive learning outcomes in SMP Islam Al Azhar 29 Semarang, SMP N 18 Semarang, and SMP Islam Al Azhar 14 Semarang. The Students? ability in observing, questioning, hypothesizing, designing experiments, experimenting, interpreting data, and concluding can develop with inquiry laboratory activities in Archimedes? law learning.
Co-Authors Arianto, Ivan Setia Firdaus, Muhammad Samsul Arifin Firdaus, Muhammad Samsul Arifin Hartono Hartono Ian Yulianti, Ian Jati, Pamungkas Laili, Nihla Nurul Nikmah, Syafridatun Noor Hidayah Putut Marwoto Rizaldi, Priyandika Dwi Rizaldi, Priyandika Dwi Saputra, Fandi Musthofa Ananda Saputra, Fandi Musthofa Ananda Sunarno Sunarno Theasy, Yoan Wiyanto - Yani Puspitarini, Yani