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Agus Riyanto
Universitas Lampung
Agriculture, Biological Sciences & Forestry Astronomy Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Health Professions Materials Science & Nanotechnology Medicine & Pharmacology Nursing Physics Public Health Other

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Pengaruh waktu sintering Terhadap tingkat kemurnian fase Superkonduktor BPSCCO-2223 dengan Kadar Ca 2,10 Menggunakan Metode Pencampuran Basah Isnaini Rahayu; Suprihatin Suprihatin; Agus Riyanto
Jurnal Teori dan Aplikasi Fisika Vol. 7 No. 1 (2019): Jurnal Teori dan Aplikasi Fisika
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v7i1.205

Abstract

Desain Teras Reaktor High Temperatur Gas-Cooled Reactor (HTGR) Model Mesh Triangular Dua Dimensi Berbahan Bakar Thorium Berpendingin Gas CO2 Nasta Melia Dilaga; Yanti Yulianti; Agus Riyanto
Jurnal Teori dan Aplikasi Fisika Vol. 7 No. 1 (2019): Jurnal Teori dan Aplikasi Fisika
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v7i1.207

Abstract

The research of design reactor HTGR cell core with two dimensional triangular mesh model using thorium fueled and CO2 coolant has been done. Objective of the research was design critical condition of HTGR cell core so as obtained critical condition and high thermal power. The neutronic analyzed by CITATION of SRAC on 1/6 of reactor cell core. The parameter which analyzed were core fuel enrichment, size and configuration reactor cell core, critically and power density. The result was obtained the ideal reactor design with size (x) 202 cm and (y) 101 cm. The enrichment of first region was 3% and second region was 2.731%. The total thermal power of reactor was 100 MWth, maximum power density of reactor was 107.5371 Watt/cc and keff of reactor was 1.000008.
Sifat Fisis Komposit Pe/Nanosilika sebagai Fungsi Ketebalan Tria Permata Sari; Posman Manurung; Agus Riyanto
Jurnal Teori dan Aplikasi Fisika Vol. 7 No. 1 (2019): Jurnal Teori dan Aplikasi Fisika
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v7i1.208

Abstract

Polyethylene (PE) has been widely used as the insulation material of high voltage cables because of its outstanding physical, chemical, and electrical properties. In this research the amorph nanosilica powders were extracted from pumice using NaOH, H2SO4 and HCl. PE and nanosilica was mixed by mixer at temperature 95 OC and then made the film by using barcoater. The weight percentage of nanosilica was 5 and 10% with thickness of 6, 12 and 25?m respectively. The PE/nanosilica were characterized via Fourier Transform InfraRed (FTIR) spectroscopy and LCR measurement to abtain conductivity and permitivity respons as a function of frequency. The effect thickness on the electrical properties of PE/nanosilica of 5 and 10 % for conductivity values in samples 25 ?m thick has a greater conductivity value. Whereas for the electrica constant of two filer variation shows that the thicker the sample, the greater the electric constant value. Where as for the dielectric constant of two filler variations shows that the ticker the sample, the greater the electric constant value.
Sintesis Superkonduktor BSCCO-2223 dengan Variasi Waktu Sintering pada Kadar Ca=2,10 Menggunakan Metode Pencampuran Basah Siti Istikomah; Suprihatin Suprihatin; Agus Riyanto
Jurnal Teori dan Aplikasi Fisika Vol. 7 No. 2 (2019): Jurnal Teori dan Aplikasi Fisika
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v7i2.214

Abstract

Pemanfaatan Biomassa Sebagai Inhibitor Organik Pada Baja Aisi 1020 Di Universitas Lampung Rizky Damayanti; Pulung Karo Karo; Agus Riyanto
Jurnal Teori dan Aplikasi Fisika Vol. 7 No. 2 (2019): Jurnal Teori dan Aplikasi Fisika
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v7i2.221

Abstract

Co-Authors Adi Sucipto Ediman Ginting Erika Sempana Fegiliani Fegiliani Gurum Ahmad Pauzi Iqbal Firdaus Isnaini Rahayu Junaidi Junaidi Khairurrijal Khairurrijal Kuwat Triyana Marjunus, Roniyus Mega Muryani Nanda Efbriyansyah Nasta Melia Dilaga Nola Fricilia Posman Manurung Pulung Karo-Karo Rahmawati Rahmawati ramon sanjaya Rizki Putri Surahman Rizky Damayanti Rudy T M Situmeang Simon Sembiring Siti Istikomah Suprihatin Suprihatin Surtono, Arif sutiarno sutiarno Tria Permata Sari Yanti Yulianti