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Front Matter Vol 6, No. 1 - April 2021CoverEditorialTable of Content

Abstract This paper discusses a one-dimensional harmonic oscillator system subjected to simultaneous quadratic-quartic-quintic perturbation. The main objective of this paper is to calculate the matrix representation of its Hamiltonian. To keep more generally, these thre...

Telah dilakukan penelitian yang berjudul analisis kandungan mineral pasir pantai Peh Pulo Kabupaten Blitar menggunakan XRF dan XRD. Penelitian ini bertujuan untuk mengetahui bagaimana persentase kandungan mineral dalam pasir pantai Peh Pulo Kabupaten Blitar. Instrumen y...

In this work, the fluorescence (FL) and bathochromic of the photophysical properties from protonated small molecule in cast film state have been investigated. To realize these purposes, the material of 4’,4’’’’-(1,4-phenylene bis (2,2’:6’,2”-terpyridine) (Phtpy) as a sm...

Abstrak
 Telah dirancang sebuah sistem alat peraga praktikum gerak jatuh bebas dengan memanfaatkan fotodioda dan LED inframerah untuk mendeteksi gerak benda. Arduino Mega ADK sebagai pengontrol sistem, digunakan metode regresi non-linear polinomial orde dua dan ban...

A simulation of damping vibration on valve spring hydraulic system has been done. This research is a study of the simulation that aims to control excess vibration on valve spring hydraulic system as a result of excitation force that is affected by the changes of pressur...