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All Journal JOURNAL OF NATURAL SCIENCES AND MATHEMATICS RESEARCH JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI Journal of Natural Sciences and Mathematics Research JITEK (Jurnal Ilmiah Teknosains) Jurnal Penelitian Pembelajaran Fisika JIPF (Jurnal Ilmu Pendidikan Fisika) Journal of Dedicators Community Journal of Banua Science Education Lontar Physics Today
Joko Saefan
Universitas PGRI Semarang
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Veterinary

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Hamilton Equations of Pendulum-Spring System Nur Widya Rini; Joko Saefan
Lontar Physics Today Vol 2, No 2 (2023): Juni 2023
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/lpt.v2i2.17312

Abstract

Abstract. The pendulum-spring system was studied by using Hamilton equations of motion. The total Hamiltonian of this system is complicated because of the complex mechanical system. The paper begins by introducing the physical system and defining a fixed coordinate system. Following this, the Lagrangian and Hamilton equations of motion are derived. Six equations of motion are obtained from the Hamilton equations in the form of ordinary differential equation. These equations can be employed for simulating the dynamical behavior of the system. The primary goal of this paper is to familiarize physics students with the Hamilton equations of motion as applied to the pendulum-spring system.Keywords: Hamiltonian, pendulum, equation of motion, ODE
The Effect of Annealing Temperature Growth on Fe-TiO2 Thin Film Photoactivity in Methylene Blue Ummi Kaltsum; Ema Chintya Permatasari; Ngurah Ayu Nyoman Murniati; Wawan Kurniawan; Joko Saefan
Jurnal Ilmiah Pendidikan Fisika Al-Biruni Vol 8, No 1 (2019): Jurnal Ilmiah pendidikan Fisika Al-Biruni
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/jipfalbiruni.v8i1.2967

Abstract

The purpose of this study is to determine the effect of annealing temperature growth on Fe-TiO2 thin film photoactivity. This was made by mixing TTIP, AcAc, ethanol, and Iron Nitrate Nanohydrate, after which the obtained mixture was sprayed and annealed on the substrate for two hours using the coating method. The temperature was increased to 500°C, 550°C, and 600°C, with the thin film photoactivity determined in methylene blue using UV light for 5 hours with decreasing values of COD, BOD, and absorbance. The results show annealing temperature growth increased photoactivity of the thin film. The highest photoactivity at 600°C in degrading methylene blue with decreasing values of COD, BOD, and absorbance was 19.56%, 35.84%, and 66.70%, respectively.
Co-Authors Arsini -, Arsini Arsini Arsini Arsini Arsini, Arsini Choirul Huda Ema Chintya Permatasari Joko Siswanto Khilman Najib Muhammad Farchani Rosyid Muhammad Farchani Rosyid Muhammad Farchani Rosyid, Muhammad Ngurah Ayu Nyoman Murniati Nur Ifanis Sa'adah Nur Khoiri Nur Widya Rini Pagunanto Pagunanto Sigit Ristanto Ummi Kaltsum Wawan Kurniawan