Article Per Year (5 Year)
p-Index From 2020 - 2025
0.444
P-Index
This Author published in this journals
All Journal Jurnal Fisika Unand Jurnal Surya Teknika
Saputra, Nando
Unknown Affiliation
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Analisis Keselamatan dan Risiko pada Pekerjaan Pengembangan Kilang Minyak dan Petrokimia dengan Metode JSA Saputra, Nando; Kisanjani, Alex; Andivas, Marulan; Angga, Angga
JURNAL SURYA TEKNIKA Vol. 11 No. 1 (2024): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v11i1.6519

Abstract

Working at heights poses serious risks, including accidents and fatal injuries.Workers may also experience psychological stress and the physical and mental health impacts due to environmental conditions or psychological pressure. Restricted movement, difficulties in evacuation, and the use of safety equipment are also issues that require the implementation of effective safety measures and adequate training. This research aims to identify hazards through Job Safety Analysis (JSA) using descriptive analytical methods and field observations. The collected data is used as a basis to formulate control measures to prevent accidents or minimize risks. The results of the analysis of those activities serve as safety guidelines/procedures for all work activities.
The Bilinear Formula in Soliton Theory of Optical Fibers Saputra, Nando; Ripai, Ahmad; Abdullah, Zulfi
Jurnal Fisika Unand Vol 11 No 3 (2022)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.11.3.387-392.2022

Abstract

Solitons are wave phenomena or pulses that can maintain their shape stability when propagating in a medium. In optical fibers, they become general solutions of the Non-Linear Schrödinger Equation (NLSE). Despite its mathematical complexity, NLSE has been an interesting issue. Soliton analysis and mathematical techniques to solve problems of the equation keep doing. Yan & Chen (2022) introduced them based on bilinear formula for the case of the generalized NLSE extended models into third and fourth-order dispersions and cubic-quintic nonlinearity. In this paper, we review the form of the bilinear formula for the case. We re-observed a one-soliton solution based on the formula and verified the work of the last researcher. Here, the mathematical parameters of position α(0) and phase η are verified to become features of change in horizontal position and phase of one soliton in the (z, t) plane during propagation. In addition, we notice the soliton has established stability. Finally, for the condition Kerr effect focusing or the group velocity dispersion β2 more dominates, we present like the soliton trains in optical fibers under modulation instability of plane wave.
Co-Authors Ahmad Ripai Andivas, Marulan Angga Angga Kisanjani, Alex Zulfi Abdullah