Article Per Year (5 Year)
p-Index From 2021 - 2026
0.23
P-Index
This Author published in this journals
All Journal Jurnal Penelitian Fisika dan Aplikasinya (JPFA) INDONESIAN JOURNAL OF APPLIED PHYSICS Risalah Fisika Journal of Informatics and Vocational Education Jurnal Fisika
Arief Hermanto
Jurusan Fisika FMIPA UGM Sekip Utara Yogyakarta 55281
Astronomy Computer Science & IT Earth & Planetary Sciences Education Energy Materials Science & Nanotechnology Physics Other

Published : 6 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 6 Documents
Search

 1 
Simulasi Komputer Pengaruh Efek Proksimitas pada Medan Kritis Superkonduktor Anwar, Fuad; Nurwantoro, Pekik; Hermanto, Arief
Risalah Fisika Vol 1, No 2 (2017): Risalah Fisika ISSN 2548-9011
Publisher : Physical Society of Indonesia (PSI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (368.304 KB) | DOI: 10.35895/rf.v1i2.21

Abstract

Telah dibuat kajian pengaruh syarat batas efek proksimitas pada penyelesaian komputasi persamaan Ginzburg-Landau Gayut Waktu. Bahan kajian adalah superkonduktor berbentuk kotak yang berbatasan dengan bahan lain pada keempat sisinya dan dipengaruhi medan magnet luar. Metode pembuatan simulasi didasarkan pada persamaan Ginzburg-Landau gayut waktu serta persamaan syarat batas parameter benahan dan syarat batas medan magnet. Persamaan-persamaan tersebut lalu didiskretkan dengan menggunakan metode yU. Hasil kajian menunjukkan bahwa nilai medan kritis permukaan membesar, medan kritis rendah mengecil pada ukuran bahan Nx×Ny = 12×12 dan membesar pada ukuran bahan Nx×Ny = 32×32 jika nilai panjang ekstrapolasi membesar. Kata kunci: efek proksimitas, persamaan TDGL, superkonduktor
The Existence of Fourier Coefficients and Periodic Multiplicity Based on Initial Values and One-Dimensional Wave Limits Requirements Jufriansah, Adi; Khusnani, Azmi; Hermanto, Arief; Toifur, Mohammad; Prasetyo, Erwin
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 10, No 2 (2020)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v10n2.p146-157

Abstract

Physical systems in partial differential equations can be interpreted in a visual form using a wave simulation. In particular, the interpretation of the differential equations used is in the nonlinear hyperbolic model, but in its completion, there are some limitations to the stability requirements found. The aim of this study is to investigate the analytical and numerical analysis of a wave equation with a similar unit and fractal intervals using the Fourier coefficient. The method in this research is to use the analytical solution approach, the spectral method, and the finite difference method. The hyperbolic wave equation's analytical solution approach, illustrated in the Fourier analysis, uses a pulse triangle. The spectral method minimizes errors when there is the addition of the same sample grid points or the periodic domain's expansion with a trigonometric basis. Meanwhile, different ways offer a more efficient solution. Based on the research results, the information obtained is that the Fourier analysis illustrates the pulse triangle use to solve the solution. These results are also suitable for adding sample points to the same spectra. Fourier analysis requires a relatively long time to solve one pulse triangle graph to need another solution, namely the finite difference method. However, its use is still limited in terms of stability when faced with more complex problems.
A Critical Examination on the Lorentz Contraction of a Rod Hermanto, Arief; Hanang Setya Budhi, Romy
Jurnal Fisika Vol. 14 No. 1 (2024): Jurnal Fisika 14 (1) 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

When studying special relativity, we usually find Lorentz contraction as one of the most clear andstraightforward consequences of the Lorentz Transformation. The derivation of Lorentz contractionfrom Lorentz Transformation is apparently so simple that we usually overlook an important idealassumption. A body which is Lorentz contracted is assumed to exist in infinite time in its rest frameof reference. In this paper we will derive Lorentz contraction without that assumption. We willderive Lorentz contraction (using spacetime diagram) of a rod with finite lifetime in its rest frame ofreference. The result is such that the famous Lorentz contraction formula is only valid in certaincondition concerning the lifetime of the rod. 
Kajian Gejala Penyearahan Optik pada Metamaterial Chiral Partini, Juliasih; Abraha, Kamsul; Hermanto, Arief; Tomita, Satoshi; Takahiro, Matsui
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 4, No 02 (2014): October
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v4i02.4980

Abstract

Chiral metamaterial is a new breakthrough in the fabrication of a metamaterial because of the capability of providing different refractive index values for each circular polarization angle. This provides opportunities to obtain negative refractive index values, without the necessity to have simultaneously negative values for both permittivity and permeability. This study investigated the optical rectification, which is the phenomenon of second order non-linear optics in the chiral metamaterial. This relates to the testing of the new designs of square structure chiral metamaterial. Optical rectification is often used to 'rectify' femtoseconds laser from the realm of visible light into the terahertz domain. Nonlinear response of metamaterial was observed by terahertz emission spectroscopy. The results showed that the obtained terahertz signal is proportional to the square of the laser power used. This suggests that in theincoherent optical rectification, there is a mixture of optical rectification with the second harmonic wave generation. Development of square-structured chiral metamaterials is expected to be an alternative source of material due to the lack of non-linear material that can be used in the terahertz domain.
Dinamika Pertukaran Partikel Pada Interaksi Nukleon-Nukleon Dalam Potensial Lokal Aprian Sari, R Yosi; S, Supardi; BSU, Agung; Hermanto, Arief
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 2, No 02 (2012): October
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v2i02.1282

Abstract

The interaction of two nucleons in the form of protons and neutrons as a bound system in the local potential, known as the deuteron, has been investigated. Two-nucleon interaction potential field through the core will produce a nuclear force where the force between nucleons is generated by the exchange of mesons. One of the members of the group of meson particles is pion. Pion can be chargedπ + ,π -or neutral,π 0. Interaction potential form of the simplest is the exchange of one pion potential (OPEP), V OPEP , which has a radially independent of Yukawa potential. In this study, the first step taken is to perform discretization of the OPEP potential expression coupled with the equation of the boundary conditions due to the influence of interaction distances. The next step is to implement a programming technique to obtain the value associated with the potential influence of OPEP in the deuteron, the magnitudes of the static deuteron, such as a pion distance exchange, and mass estimates pion involved in this interaction.
The Influence of Student Teams Achievement Division combined with Discovery Learning to Improve Student Learning Outcomes and Activeness Hermanto, Arief; Efendi, Agus; Prakisya, Nurcahya Pradana Taufik
Journal of Informatics and Vocational Education Vol 3, No 3 (2020): Journal of Informatics and Vocational Education
Publisher : Pendidikan Teknik Informatika dan Komputer, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/joive.v3i3.48388

Abstract

This research aims to find out the influence of learning outcomes as well as the activeness of students in the classroom who apply the learning model of student teams achievement division combined with discovery learning with classes that apply conventional learning models. The method used is a quantitative quasi-experimental design using pretest-posttest control. The sample used in this study was 72 students consisting of 2 classes. The sampling techniques in this study used total sampling. Data is obtained from pretest and posttest results based on indicators of student learning outcomes and activeness. The results showed differences and improved learning outcomes and student activity that implemented the student teams achievement division learning model combined with discovery learning compared to conventional learning models. This is evidenced by the results of the first hypothesis test using a t-test that confirms that the posttest result is 0.00 which means the value is less than the error level of 0.05 so it can be concluded that the two classes have a significant difference (H0 rejected). Furthermore, the results of the second hypothesis test used again to test showed a score of 0.52 in the experiment class and a score of 0.28 in the control class which meant there was an increase in learning outcomes and liveliness in the experiment and control classes.
Co-Authors Adi Jufriansah Agus Efendi Anwar, Fuad Azmi Khusnani BSU, Agung Hanang Setya Budhi, Romy Juliasih Partini Kamsul Abraha Moh. Toifur Pekik Nurwantoro Prakisya, Nurcahya Pradana Taufik PRASETYO, ERWIN S, Supardi Takahiro, Matsui Tomita, Satoshi Yosi Aprian Sari