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All Journal VALENSI POSITRON BULETIN FISIKA Jurnal Elementer (Elektro dan Mesin Terapan) Indonesian Journal of Chemistry Jurnal Fisika : Fisika Sains dan Aplikasinya JTM - Jurnal Teknik Mesin Magnetic: Research Journal of Physics and It’s Application Jurnal Nasional Pengabdian Masyarakat Archive: Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian Kepada Masyarakat (JPKM) Zadama: Jurnal Pengabdian Masyarakat J-Icon : Jurnal Komputer dan Informatika Jurnal Pendidikan dan Pengabdian Masyarakat Molekul: Jurnal Ilmiah Kimia Wahana Fisika : Jurnal Fisika dan Terapannya
Johannes, Albert Zicko
Universitas Nusa Cendana
Religion Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences Other

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SIMULASI DINAMIKA MOLEKULER KUANTUM DARI DENSITAS MUATAN PLASMA UNTUK SISTEM SEDERHANA Albert Zicko Johannes
Wahana Fisika Vol 3, No 1 (2018): JUNE
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/wafi.v3i1.11083

Abstract

Pemodelan ab-initio Dinamika Molekuler Kuantum dari densitas muantan plasma telah telah dilakukan. Metode yang digunakan adalah Dinamika Molekuler Car-Parrinello, dimana metode ini dapat mensimulasikan pergerakan dinamis dari elektron dan ion pada suatu temperatur rata-rata. Penelitian ini bertujuan  mensimulasikan perubahan densitas muatan dari kluster atom Hidrogen dan atom Oksigen (10 atom) pada temperatur 1300 K. Hasil menunjukkan densitas muatan setelah perubahan waktu 0.120 ps untuk setiap kluster mengalami perubahan bandwidth distribusi densitas. Untuk kluster H sebesar 0.021 bohr-3, kluster H-O (50% H - 50% O) sebesar 0.069 bohr-3 dan kluster O sebesar -0.241 bohr-3. Perubahan ini menunjukkan sebaran densitas dipengaruhi oleh jenis ion plasma.Kata Kunci   :  Dinamika Molekuler Kuantum, Plasma, Densitas muatan, Dinamika Molekul Car-Parrinello.The ab-initio Quantum Molecular Dynamics modeling of plasma charge density is performed. The Method used in this research is Car-Parrinello Molecular Dynamics, which is can simulate the dynamics of electrons and ions at some average temperature. This research purpose is to simulate the change in charge density of Hidrogen and Oxygen atom cluster  (10 atoms) at the average temperature 1300 K. The results show the charge density after time difference 0.120 ps for each clusters experience change in bandwidth. For H cluster is 0.021 bohr-3, H-O cluster (50% H - 50% O)  is 0.069 bohr-3 and O cluster is -0.241 bohr-3. This change shows that the density distribution is influenced by the types of plasma ions.Keywords  :  Quantum Molecular Dynamics, Plasma, Charge Density, Car-    Parrinello Molecular Dynamics.
SIMULASI POLA XRD DAN VISUALISASI STRUKTUR KRISTAL MATERIAL LARUTAN PADAT CaXMg1-XO Johannes, Albert Zicko; Tarigan, Jonshon; Tanesib, Jehunias Leonidas; Bukit, Minsyahril; Bethan, Agustinus Deka
Jurnal Teknik Mesin Vol 5 No 1 (2022): Jurnal Teknik Mesin
Publisher : P3M- Politeknik Negeri Kupang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32511/jtm.v5i1.862

Abstract

Larutan padat adalah suatu campuran dua atau lebih material dalam keadaan padat yang memiliki fase kristal yang sama. Pada penelitian ini larutan padat CaO/MgO (CaxMg1-xO) disimulasikan dengan perangkat lunak VESTA untuk mendapatkan model visualisasi struktur kristal dan hasil simulasi pola XRD. Larutan padat CaxMg1-xO divariasikan sesuai dengan nilai faktor x dari 0.1 sampai dengan 0.9. Penelitian ini berhasil menvisualisasikan model struktur kristal CaxMg1-xO dengan menunjukkan probabilitas keberadaan atom Ca dan atom Mg berada pada posisi yang sama. Simulasi pola XRD juga berhasil dilakukan dan menunjukkan pola perubahan yang sesuai dengan hasil eksperimen penelitian sebelumnya.
Approximate Solution to the Schrödinger Equation of Exotic Doubly Muonic Helium-like Systems Using Hydrogenic-based Matrix Mechanics Pingak, Redi Kristian; Jacob, Johanes Eliaser; Bernandus, Bernandus; Johannes, Albert Zicko; Setiawan, Ely
Molekul Vol 19 No 1 (2024)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jm.2024.19.1.11224

Abstract

The approximate solution to the Schrödinger equation of exotic doubly muonic helium-like systems has been obtained using a simple matrix method based on hydrogenic s-states. Each system considered consists of a positively charged nucleus surrounded by 2 negatively charged muons XZ+μ-μ- (2 Z 36). The present work aims to obtain approximate ground-state energies of the systems and to decompose the energies in terms of the basis states used. Here, the wave function was expressed as a linear combination of 15 eigenfunctions, each written as the product of two hydrogenic s-states. The elements of the Hamiltonian matrix were calculated and finally, the energy eigenvalue equation was numerically solved to obtain the ground-state energies of the systems with their corresponding eigenvectors. From the results, ground-state energies of all systems were in agreement with others from the literature, with percentage differences between 0.03% and 2.05%. The analysis of the probability amplitudes from the eigenvectors showed that the 1s1s state made the largest contribution to the ground state energies of the systems, approaching 90.99%, 96.98% and 98.54% for He2+μ-μ- , Li3+μ-μ- , and Be4+μ-μ- , respectively. Keywords: Doubly muonic helium-like systems, ground state energy, hydrogenic basis states, matrix mechanics, Schrödinger equation
RANCANG BANGUN SISTEM PEMANTAUAN DAN KONTROL KUALITAS AIR OTOMATIS UNTUK PEMBUDIDAYAAN IKAN LELE BERBASIS SMS Resiona, Baltazar A T; Tarigan, Jonshon; Johannes, Albert Zicko
Jurnal Fisika : Fisika Sains dan Aplikasinya Vol 9 No 1 (2024): Jurnal Fisika : Fisika Sains dan Aplikasinya
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/fisa.v9i1.15450

Abstract

Budidaya ikan lele (Clarias gariepinus) adalah sektor peternakan yang berkembang pesat di Indonesia, memberikan kontribusi signifikan terhadap kesejahteraan produsen dan pasokan pangan. Namun, tantangan seperti kualitas air buruk dan aksesibilitas lokasi budidaya memerlukan solusi efektif dalam pemantauan dan kontrol kualitas air. Penelitian ini bertujuan merancang sistem pemantauan dan kontrol kualitas air otomatis berbasis SMS untuk budidaya ikan lele. Arduino Due dan modul SIM800L digunakan sebagai pusat rangkaian dan pengiriman SMS yang terhubung dengan sensor suhu (DS18B20), pH (SEN0161-V2), TDS/salinitas, dan ketinggian air (JSN-SR04T). Hasil penelitian menunjukkan tingkat akurasi tinggi dalam pengukuran kualitas air, mencapai sekitar 99,66% untuk suhu air, 99,58% untuk pH air, dan 99,54% untuk TDS dan salinitas. Pengukuran ketinggian air mencapai akurasi sekitar 99,96%. Implementasi alat monitoring dan kontrol kualitas air berbasis SMS dalam budidaya ikan lele selama 14 hari berhasil mencapai penggantian air otomatis sesuai dengan batas yang ditentukan untuk pH dan TDS, memastikan pengendalian parameter kualitas air yang optimal. Kendali ini berdampak positif pada pertumbuhan ikan lele, meningkatkan panjangnya sekitar 1,5-2,5 cm selama periode penelitian, dibandingkan dengan ukuran ikan lele di kolam tanpa pengendalian.
Rancang Bangun Alat Pemantau Dan Kontrol Kondisi Ruangan Green House Untuk Budidaya Tanaman Stroberi Berbasis Internet Of Things (IoT) Tarigan, Jonshon; Albert Zicko Johannes; Martelda Natbais; Ari Bangkit Sanjaya Umbu
Jurnal ELEMENTER (Elektro dan Mesin Terapan) Vol. 9 No. 1 (2023): Jurnal Elektro dan Mesin Terapan (ELEMENTER)
Publisher : Politeknik Caltex Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35143/elementer.v9i1.5877

Abstract

Strawberries are horticultural crops that can grow well in subtropical regions. Strawberries require cool environmental conditions with temperatures between 17°C-20°C and humidity between 80% -90%. Cultivating strawberries in the tropics is a challenge in itself because of the temperature and humidity in this area. One way to cultivate strawberry plants in the tropics is to use a Green House. Green House is designed to maintain the temperature and humidity according to the needs of the strawberry plants. This study aims to create a system monitoring and controlling greenhouses using the internet of things. Users can  monitor and control the condition of the Green House via an Android smartphone with the Blynk application. When the air temperature and humidity values are in the Green House, the system will work to readjust the temperature and humidity in the Green House. This system uses ESP32 as the control center and a DHT22 sensor to measure air temperature and humidity. Based on the results of the design and performance analysis of the tool, the accuracy of the air temperature gauge is 99.52% and the air humidity is 99.29%. The system successfully controlled the temperature and humidity in the Green House room for 23 days of testing. 
DFT Insights into the Structural, Mechanical, Electronic and Optical Properties of Novel InZnCl3 and InCdCl3 Chloro-Perovskites Pingak, Redi Kristian; Ngara, Zakarias Seba; Johannes, Albert Zicko; Bukit, Minsyahril; Tanesib, Jehunias Leonidas; Nitti, Fidelis; Sianturi, Hery Leo; Pasangka, Bartholomeus
Indonesian Journal of Chemistry Vol 24, No 5 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.94870

Abstract

The ABX3 perovskite materials have recently emerged as one of the most promising materials for optoelectronic applications. In the present study, novel perovskites in the form of InZnCl3 and InCdCl3 are computationally investigated to determine their key characteristics, including structural, mechanical, electronic, and optical characteristics. These characteristics were evaluated using the density functional theory (DFT) implemented in the quantum espresso code. The results indicated that both materials exhibit chemical, dynamic, and mechanical stability. Moreover, these perovskites are predicted to be ductile, rendering them suitable for a broad array of optoelectronic applications, including solar cells. The electronic band structure and the density of states of the materials revealed their characteristics as indirect semiconductors with band gap energy values of 0.96 eV for InZnCl3 and 1.83 eV for InCdCl3 perovskites. The optical properties calculations also unveiled that these perovskites possess strong absorption in the visible-ultraviolet spectrum (up to 106 cm−1) and low reflectivity. The calculated refractive index and extinction coefficient of the compounds were also predicted in this study. These collective findings strongly suggest the potential applications of these novel materials in optoelectronic devices.
PELATIHAN BUDI DAYA TANAMAN MEMANFAATKAN ALAT UKUR FISIKA BAGI ALUMNI DAN MAHASISWA DALAM MENINGKATKAN KEMAMPUAN BERWIRAUSAHA Tarigan, Jonshon; Sianturi, Hery Leo; Johannes, Albert Zicko; Wahid, Abdul; Lapono, Laura A. S.; Ngara, Zakarias Seba; Pasangka, Bartholomeus; Tanesib, Jehunias L.; Pingak, Redi Kristian; Warsito, Ali; Sutaji, Hadi Imam; Bernandus, Bernandus; Mbiliyora, Christine
Jurnal Pengabdian Kepada Masyarakat Vol 4 No 2 (2024): Desember 2024
Publisher : Universitas Nusa Cendana

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

Abstract

Tujuan dari kegiatan ini adalah untuk menumbuhkan minat dan meningkatkan kemampuan berwirausaha untuk alumni dan mahasiswa dalam budidaya tanaman dengan memanfaatkan alat pengukuran fisika. Masa tunggu yang lama untuk mendapatkan pekerjaan bisa menjadi beban psikologis bagi lulusan baru. Oleh karena itu, Program Studi Fisika Fakultas Sains dan Teknik Universitas Nusa Cendana (FST Undana) menawarkan pelatihan budidaya tanaman untuk alumni dan mahasiswa. Pelatihan ini berfokus pada penggunaan alat ukur fisika untuk mengukur sifat fisis tanah guna mengoptimalkan potensi budidaya tanaman. Pelatihan mencakup presentasi materi, diskusi, dan praktek langsung terkait budidaya tanaman menggunakan alat pengukuran fisika. Keberhasilan kegiatan ini dievaluasi melalui pertanyaan survei yang diberikan kepada peserta. Jawaban dari hasil survei menunjukkan pelatihan ini berhasil dijalankan dengan sangat baik. Selain itu, umpan balik dari peserta menunjukkan peningkatan motivasi untuk terlibat dalam budidaya tanaman dalam meningkatkan kemampuan berwirausaha.
PELATIHAN PENULISAN ARTIKEL ILMIAH BAGI GURU-GURU SMA/SMK DAN SMP KOTA KUPANG Ngara, Zakarias Seba; Pasangka, Bartholomeus; Ngana, Frederika Rambu; Sianturi, Hery Leo; Bernandus; Pingak, Redi Kristian; Johannes, Albert Zicko; Bukit, Minsyahril; Tarigan, Jhonson
Jurnal Pendidikan dan Pengabdian Masyarakat Vol. 7 No. 2 (2024): Mei
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppm.v7i2.6442

Abstract

Pelatihan Penulisan Artikel Ilmiah bagi Guru-guru SMA/SMK dan SMP di kota kupang dalam kegiatan Pengabdian kepada Masyarakat telah dilaksanakan pada tanggal 9 Nopember 2021 bertempat di SMA Katolik Sin Carolus Penfui Kota Kupang oleh program Studi Fisika, Fakultas Sains dan Teknik Undana. Tujuan kegiatan pengabdian ini adalah melatih para guru untuk menemukan ide atau masalah yang diteliti dan meningkatkan kemampuan menulis artikel ilmiah dari hasil-hasil penelitian yang telah dilakukan serta prosedur publikasi artikel ilmiah pada jurnal-jurnal terakreditasi baik nasional maupun internasional. Pelatihan penulisan artikel ilmiah ini dilaksanakan menggunakan metode metode ceramah, diskusi, dan tanya jawab. Berdasarkan pengamatan pada saat kegiatan berlangsung, Peserta pelatihan sangat antusias mengikuti kegiatan ini yang ditandai dengan banyaknya pertanyaan yang diajukan oleh peserta pelatihan dan memperoleh sesuatu yang baru dalam pelatihan ini khususnya bagaimana menemukan sebuah ide atau permasalahan dalam penelitian dan solusi ,menyelesaikannya. Selain itu, peserta pelatihan lebih memahami etika penulisan artikel ilmiah serta prosedur pengiriman artikel ilmiah pada jurnal terakreditasi. Peserta pelatihan mengajukan pertanyaan-pertanyaan yang berkaitan dengan kendala-kendala yang mereka hadapi baik ketika mereka melakukan penelitian, penulisan artikel ilmiah maupun pengiriman artikel ilmiah pada jurnal terakrediatasi. Pelatihan penulisan artikel ilmiah ini dapat memberikan wawasan pengetahuan yang lebih luas bagi peserta pelatihan khususnya cara menemukan ide penelitian, metode menyelesaikan idenya, penulisan artikel ilmiah dan prosedur pengiriman artikel ilmiah untuk dipublikasikan pada jurnal terakreditasi.
GOOGLE TEACHABLE MACHINE: PEMANFAATAN MACHINE LEARNING BERBASIS CNN UNTUK IDENTIFIKASI CEPAT BATUAN MINERAL KALSIT, KUARSA DAN MAGNETIT Johannes, Albert Zicko; Bukit, Minsyahril; Betan, Agustinus D D; Tarigan, Jonshon
J-Icon : Jurnal Komputer dan Informatika Vol 12 No 2 (2024): Oktober 2024
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jicon.v12i2.15170

Abstract

Google Teachable Machine is a web-based application that allows users to create a machine learning model without the need for coding. The application utilizes Convolutional Neural Networks (CNN) in its process. In this study, Teachable Machine was utilized to create a machine learning model capable of identifying specific mineral rocks, particularly magnetite, calcite, and quartz. The research procedure was conducted through several stages: Sample Collection, Sample Classification (Dataset), Model Training, and Evaluation Process. Sample data in the form of mineral rock images were obtained and downloaded from Google. The data was then divided into three mineral classes: magnetite, calcite, and quartz, which were used as inputs in the Teachable Machine. Model training in Teachable Machine used input epochs of 100, batch size of 64, and learning rate of 0.0001. The results of the Teachable Machine modeling were then evaluated, showing that the obtained model could recognize magnetite, calcite, and quartz minerals with an average accuracy, precision, recall, specificity, and F1-score of 91.11% (86.67%), 87.30%, 86.67%, 93.33%, and 86.50% respectively. This research indicates that the utilization of Teachable Machine assists in quick, accurate, and easy identification, thereby contributing to speeding up the process of mineral rock analysis, decision-making, and exploration strategy development. Additionally, these results demonstrate the potential for broader development of this application in various fields of study.
IDENTIFIKASI LAPISAN BAWAH PERMUKAAN MENGGUNAKAN METODE GEOLISTRIK DI SEKITAR REMBESAN LUMPUR DI DESA BAKUSTULAMA, KECAMATAN TASIFETO BARAT, KABUPATEN BELU Sianturi, Hery Leo; Lau, Claudya Hendrika Putri; Johannes, Albert Zicko; Tanesib, Jehunias L.
Jurnal Fisika : Fisika Sains dan Aplikasinya Vol 10 No 1 (2025): Jurnal Fisika : Fisika Sains dan Aplikasinya
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/fisa.v10i1.20811

Abstract

The study has been conducted to identify subsurface layers using the Wenner-Schlumberger geoelectric method. This research aims to understand the rock layering and hydrogeology at the research site. The research was conducted with a field survey on four 480-meter-long tracks in Bakustulama Village. Rock resistivity data was measured using a resistivity meter and analyzed using Res2DinV software to produce a 2D cross-sectional model. This method utilizes rock resistivity to determine the nature and layering of rocks in the subsurface, focusing on potentially water-saturated zones and fractures. The results show that the subsurface layer in Bakustulama Village consists of sandstone in the upper layer (0-20 meters) with medium resistivity (100-700 Ωm), followed by a highly water-saturated clay layer with low resistivity (0-100 Ωm), and a limestone layer with high resistivity (700-1000). The subsoil in the Bakustulama Area is diversely arranged, with sandstone layers at the surface to a depth of about 20 meters that suspected to have high porosity and are easily drained by water. Underneath, water-saturated clay layers are dominant and difficult for fluids to pass through.
Co-Authors Abdul Wahid Abdul Wahid Ali Warsito Andreas Ch. Louk Andreas Christian Louk Andreas Christian Louk Anggi Arni Biha Ari Bangkit Sanjaya Umbu Atika S. Ahab Bartholomeus Pasangka Bernandus Bernandus Bernandus Bernandus, Bernandus Betan, Agustinus D D Bethan, Agustinus Deka Bukit, Minsyahril Bukit, Minsyharil Christine Mbiliyora Dolin Marlince Tameno Ernawati Kawa Fidelis Nitti Freinademetz Anggur Gerda Pandu Hadi I Sutaji Hery L. Sianturi Intan M.P. Dewi Jacob, Johanes Eliaser Jonshon Tarigan Julius Bunga Tedju Kristantia Mida Subah Kristina Siu Lapono, Laura A. S. Lau, Claudya Hendrika Putri Laura A. S. Lapono Lende, Damaris Natalia Lerrick, Reinner Ishaq Mamut, Anastasia Maria Lurumutin Umrisu Maria Magdaline Bupu Marselinus E. Dandara Martelda Natbais Minsyahril Bukit Minsyahril Bukit Minsyahril Bukit Minsyahril Bukit Ndii, Meksianis Z Pasangka, Bartholomeus Pascoleta Inacio Pingak, Redi Kristian Refli, Refli Renaldo Apriandi Kasa Resiona, Baltazar A T San Arnolus Kain Setiawan, Ely Sevarianus Ramli Severianus Wunda Sianturi, Hery Leo Solly Joyce M. Kase Sutaji, Hadi Imam Tanesib, Jehunias Leonidas Tarigan, Jhonson Tarigan, Jonshon Valerianus Jehadu Veronika Hoar Seran Yongki Pawe Due Yuditha Ignasia Bete Zakarias Seba Ngara