Penerbit: Department of Physics, Faculty of Mathematics and Natural Science, University of Lampung
P-ISSN: 2747-2043
E-ISSN: 2747-299X
DOI: 10.23960/jemit
Fakultas Matematika dan Ilmu Pengetahuan Alam Fisika dan Astronomi Arsitektur
Artikel (130)
Design of Single Axis Solar Tracker Using Fresnel Lens Based on Internet of Things (IoT) For Optimizing Solar Cell Output Power
Kurniawansyah, Rifki Mohamad , Kusmita, Aryu , Ayu, Humairoh Ratu
A single-axis solar tracker using a Fresnel lens has been realized to optimize the output power of solar cells. The solar tracker system is monitored using a website that displays the value of voltage (volts), current (amperes), tilt angle (0), and output power (watt) in real-time. This single-axis ...
Journal of Energy, Material, and Instrumentation Technology; Vol. 6 No. 1 (2025): Journal of Energy, Material, and Instrumentation Technology; 16-28 | 2025
Prototype of a Floating-Type Nanohydro Generator as a Lighting Energy Source for Agricultural Land
Pauzi, Gurum Ahmad, Putra, Dio Aditia, Supriyanto, Amir
A floating-type nano-hydro generator prototype has been developed as a source of electrical energy for lighting in agricultural areas. This generator is designed to produce electrical energy without modifying the flow medium, making it easy to apply in various water channels such as irrigation syste...
Journal of Energy, Material, and Instrumentation Technology; Vol. 6 No. 1 (2025): Journal of Energy, Material, and Instrumentation Technology; 9-15 | 2025
Analysis of the Effect of Saltwater (NaCl) Solution Concentration During the Quenching Process on the Microstructure and Hardness of Medium Carbon Steel
Supriadi, Agus, Suka, Ediman Ginting, Marjunus, Roniyus
Centrifugal pumps type Overhung 4 size 4x11 often experience sand deposits and erosion problems, especially in the oil and gas industry, resulting in reduced productivity and increased repair costs. This study evaluates the application of the Piping Plan 13 API 682 as a solution to this problem. The...
Journal of Energy, Material, and Instrumentation Technology; Vol. 6 No. 1 (2025): Journal of Energy, Material, and Instrumentation Technology; 1-8 | 2025
The Effect of Chitosan Addition on Phase Composition and Detection Sensitivity of Fe3O4/Chitosan Magnetic Label Nanoparticles Based on Giant Magnetoresistance Sensor
Prayoga, Galih Aji , Oktarisa, Yuvita , Antarnusa, Ganesha
This study describes how phase composition affects the ability of giant magnetoresistance (GMR) chip-based sensors to detect magnetic labels made of Fe3O4 and Fe3O4/chitosan that were synthesized using the co-precipitation method. X-ray diffraction (XRD) analysis revealed that the synthesized nanopa...
Journal of Energy, Material, and Instrumentation Technology; Vol. 5 No. 4 (2024): Journal of Energy, Material, and Instrumentation Technology; 153-160 | 2024
Synthesis and Characterization of Activated Carbon from Pattikala Fruit Waste (Etlingera elatior)
Rahmawati, Hilda , Ismail, Nurmalasari , Asriyani, Nur
Activated carbon (AC) is an amorphous material with a suitable size pores distribution, high specific surface area, and high surface reactivity. Activated carbon can be produced from biomaterials and can be used as a water filter material, an absorbent for hazardous substances, and as electrodes in ...
Journal of Energy, Material, and Instrumentation Technology; Vol. 5 No. 4 (2024): Journal of Energy, Material, and Instrumentation Technology; 148-152 | 2024
Extraction of Nanocellulose from Bagasse Using Acid Hydrolysis Method
Zaharani, Rethanita , Manurung, Posman , Firdaus, Iqbal
The acid hydrolysis method was used to extract nanocellulose from bagasse. This study aims to prepare nanocellulose from sugarcane bagasse by acid hydrolysis method and to know the results of characterization with X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), and Fourier Transform Inf...
Journal of Energy, Material, and Instrumentation Technology; Vol. 5 No. 4 (2024): Journal of Energy, Material, and Instrumentation Technology; 141-147 | 2024
Effect of Acid Hydrolysis on Preparation of Nanocellulose from Swietenia mahagoni
Gultom, Rysa Sonya Reni Paulin, Manurung, Posman, Karo Karo, Pulung
The extraction of the mahogany pulp as the main ingredient for the preparation of nanocellulose was carried out using the acid hydrolysis method. Sulfuric acid (H2SO4) was used to hydrolyze the primary constituent and sodium hydroxide (NaOH) was utilized in the delignification process. The purpose o...
Journal of Energy, Material, and Instrumentation Technology; Vol. 5 No. 4 (2024): Journal of Energy, Material, and Instrumentation Technology; 133-140 | 2024
Design and Load Analysis of an Orbital Shaker using a Keypad as Input Based on Arduino Uno
Pauzi, Gurum Ahmad , Septiani, Elsyana, Suciati, Sri Wahyu
This study aims to develop an orbital shaker device with an Arduino Uno-based input system for rpm and time, utilizing a keypad as the input medium. The orbital shaker is designed to homogenize chemical solutions through circular motion, featuring display functions for rpm and mixing time. The devic...
Journal of Energy, Material, and Instrumentation Technology; Vol. 5 No. 4 (2024): Journal of Energy, Material, and Instrumentation Technology; 124-132 | 2024
Identification of Functional Groups of Rapitest Luster Leaf Products for Soil Phosphorus Testing Based on Color Changes using Fourier Transform Infrared Spectroscopy (FTIR)
Asriyani, Nur, Rahmawati, Hilda
Phosphorus is an important nutrient for plants and is useful as the main driver of primary productivity in plants. Periodic soil phosphorus testing is essential to monitor the availability of phosphorus in the soil so that it is not excessive or reduced to achieve maximum productivity. Testing using...
Journal of Energy, Material, and Instrumentation Technology; Vol. 5 No. 3 (2024): Journal of Energy, Material, and Instrumentation Technology; 117-123 | 2024
Comparative Analysis of Hexagonal and Square Fuel Pin Geometry Designs of GFR using Uranium Carbide Fuel
Maulana, Muhammad Rizqi , Syarifah, Ratna Dewi, Prasetya, Fajri
Comparative Analysis of Hexagonal and Square GFR Fuel Pin Geometry Designs with Uranium Carbide Fuel has been carried out. Nuclear reactors from Generation I to IV have developed significantly, with Gas-cooled Fast Reactors (GFR) being a potential candidate for operation by 2030. This study focuses ...
Journal of Energy, Material, and Instrumentation Technology; Vol. 5 No. 3 (2024): Journal of Energy, Material, and Instrumentation Technology; 109-116 | 2024