https://ejournal.unib.ac.id/nmj <p>Newton-Maxwell Journal of Physics is a scientific journal published by UNIB Press and managed by the Department of Physics, FMIPA University, Bengkulu, with ISSN Number: 2775-5894 and accredited <strong>Sinta 4</strong>. This journal is published twice a year, in April and October, as a forum for lecturers, researchers, and students to publish their work. The scope of this scientific journal covers the field of physics in general, such as materials, theory and instrumentation, geophysics, acoustics, computer science, physics and its applications, and other relevant areas.</p> UNIB Press en-US Newton-Maxwell Journal of Physics 2775-5894 <p>Authors who publish with this journal agree to the following terms:</p><ol type="a"><li>Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a <a href="http://creativecommons.org/licenses/by/3.0/" target="_new">Creative Commons Attribution License</a> that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.</li><li>Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.</li><li>Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See <a href="http://opcit.eprints.org/oacitation-biblio.html" target="_new">The Effect of Open Access</a>).</li></ol> https://ejournal.unib.ac.id/nmj/article/view/33289 <table> <tbody> <tr> <td> <p>Developing effective neutron shielding materials for applications like muon tomography requires understanding the interaction of neutrons with different materials. This study investigates the effectiveness of heavy metals (Cu, Fe, and Pb) as neutron shields using Monte Carlo PHITS simulations with fast neutrons (0.1, 0.5, and 1 MeV). Simulation results show that the intensity of transmitted neutrons decreases with increasing material thickness and atomic number (Pb &gt; Fe &gt; Cu). How far a particle travels before stopping is determined by two factors: its initial neutron energy and how likely it is to interact with the material it's passing through. These findings provide valuable insights into designing optimal neutron shielding materials for various applications.</p> </td> </tr> </tbody> </table> Sitti Yani Copyright (c) 2024 Sitti Yani https://creativecommons.org/licenses/by-sa/4.0 2024-04-30 2024-04-30 5 1 1 6 10.33369/nmj.v5i1.33289 https://ejournal.unib.ac.id/nmj/article/view/33301 <p><em>This research aims to obtain the temperature performance of heat convection from hot water flow in pipes in the drying chamber during the drying process. This research method descriptively examines the drying function and the hot air flow process in the drying system. The results obtained from the research show that the average temperature in the drying room is 37oC while the temperature outside the dryer (environmental temperature) is 22oC. To dry 2 mm thick cassava slices from an ingredient weight of 23 g to 8 g, it takes 8-10 hours. The longer the drying time, the lower the moisture ratio value. An increase in temperature affects a decrease in the moisture ratio in geothermal hot water flow dryer. The decrease in the moisture ratio value was influenced by the decrease in the water content of the material during the drying process. The distribution of temperature movements that occur in the drying room at the beginning of the drying process where the room temperature moves turbulensitly from 30.8 - 35.1oC. During the drying process, the movement of heat distribution shows the active phenomenon of a convection heat source from the side of the drying chamber which is a spiral-shaped heating design around the drying chamber. The constant temperature is 36 – 38oC which is the hottest temperature that is almost uniform in the drying room. The use of hot water energy from geothermal hot springs can be an alternative continuous and hygienic drying process</em></p> Yedi Gunawan Yazid Ismi Intara Bosman Sidebang Ulfah Anis Copyright (c) 2024 Yedi Gunawan, Yazid Ismi Intara, Bosman Sidebang, Ulfah Anis https://creativecommons.org/licenses/by-sa/4.0 2024-04-30 2024-04-30 5 1 7 18 10.33369/nmj.v5i1.33301 https://ejournal.unib.ac.id/nmj/article/view/33265 <table> <tbody> <tr> <td> <table> <tbody> <tr> <td> <p>Penyakit tuberkulosis disebabkan oleh bakteri <em>Mycobacterium tuberculosis</em> yang menyerang organ tubuh manusia. Tujuan dari penelitian ini adalah untuk menemukan senyawa dari tanaman Eukaliptus lemon, yaitu Linalool, Isopulegol, Farnesan, dan Citronellol yang paling berpotensi sebagai obat tuberculosis melalui metode <em>molecular docking</em>. Pada penelitian ini digunakan 2 jenis protein yaitu 4KM2 dan 4KL9 yang ditambatkan dengan senyawa Eukaliptus lemon. Hasil <em>docking</em> dievaluasi berdasarkan parameter dari nilai konstanta inhibisi (<em>ki</em>) dan nilai energi afinitas (<em>ΔG</em>). Senyawa Farnesan menunjukkan hasil terbaik dengan energi afinitas (<em>ΔG</em>) terendah, yaitu 5,3 kcal/mol, dan <em>ki</em> sebesar 0,9144 µM. Hasil ini menunjukan Farnesan memiliki potensi sebagai kandidat resistensi obat untuk menyembuhkan penyakit tuberculosis.</p> </td> </tr> </tbody> </table> </td> </tr> </tbody> </table> Fiona Fiona Jesi Pebralia, S.Pd., M.Si. Tika Restianingsih Frincess Yeny Sirait Irene Regina Copyright (c) 2024 Fiona Fiona, Jesi Pebralia, S.Pd., M.Si., Tika Restianingsih, Frincess Yeny Sirait, Irene Regina https://creativecommons.org/licenses/by-sa/4.0 2024-04-30 2024-04-30 5 1 19 27 10.33369/nmj.v5i1.33265