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All Journal BERKALA SAINSTEK Jurnal Mantik
Wicaksono, Angga
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Economics, Econometrics & Finance Languange, Linguistic, Communication & Media Mathematics Physics

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Studi Resonansi Feromagnetik BaFe12O19 Menggunakan Simulasi Mikromagnetik Wicaksono, Angga; Rohman, Lutfi; Supriyanto, Edy
BERKALA SAINSTEK Vol 6 No 1 (2018)
Publisher : Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bst.v6i1.7771

Abstract

Barium Hexaferit (BaFe12O19) adalah magnet keramik golongan ferit. Ferit diaplikasikan sebagai magnet permanen dan mempunyai struktur hexagonal close-pakced (HCP). Kurva histerisis magnet permanen jenis ini memiliki koersivitas yang relatif tidak besar sehingga senyawa tersebut juga berpeluang cukup baik untuk diaplikasikan sebagai media penyimpanan data (magnetic recording) berupa patterned media. Penelitian ini mengkaji sifat-sifat magnetik bahan BaM berbentuk hexagonal terhadap kurva histerisis dan sifat resonansi feromagnetik pada berbagai variasi ukuran (meliputi : ketebalan dan diagonal hexagonal). Running simulasi mikromagnetik dilakukan untuk mendapatkan kurva histerisis dan frekuensi resonansi bahan BaM. Frekuensi resonansi meningkat (heksagonal diagonal tetap pada 12 nm) dengan bertambahnya ketebalan bahan BaM (misal pada ketebalan 24 nm diperoleh frekuensi resonansi sebesar 21,7 GHz dan pada ketebalan 36 nm diperoleh frekuensi resonansi sebesar 22,4 GHz), hal ini dikarenakan dengan bertambahnya ukuran ketebalan bahan BaM posisi spin terlihat sangat teratur. Sedangkan hubungan frekuensi resonansi dengan diagonal hexagonal yaitu kebalikannya.Kata Kunci: BaFe12O19, Simulasi mikromagnetik, Frekuensi resonansi
Analysis of the impact of the public service mal on increasing the number of NIBs in Serang City Wicaksono, Angga; Sudrajat, Imam; Khoir, Tubagus Gemilang; Wahyudi, Wahyudi
Jurnal Mantik Vol. 8 No. 1 (2024): May: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mantik.v8i1.4973

Abstract

This study aims to determine the impact of the presence of Public Service Mals on the increase in the number of Business Identification Numbers (NIB) in Serang City. To find out how much impact the presence of MPP has, the authors compared the data in 2022 with 2023. This study used a qualitative descriptive method with an inductive approach. The type and source of data used is secondary data. The result of this study is the number of NIBs issued after the presence of MPP in 2023 by comparing data before the inauguration of MPP in 2022. In 2022, there are 5,529 Micro Small Enterprises that have NIB. 2023, after the inauguration of the Serang City Public Service Mal, there will be a significant increase of 206.31% or an increase of 5,878 to 11,407 micro-small enterprises with NIB. Meanwhile, in 2022, 67 Non-MSEs have NIB; in 2023, it will decrease by -34.32% or 44 to only 23 Non-MSEs with NIB. The increase in NIB in 2023 is due to the large number of business actors interested in experiencing the comfort and ease of service at Serang City Public Service Mal
Co-Authors Edy Supriyanto Imam Sudrajat, Imam Khoir, Tubagus Gemilang Lutfi Rohman W. Wahyudi