Artikel dari Penerbit "Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung"

Penerbit: Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

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Ditemukan 116 artikel.

FTIR, XRD, and SEM-EDX Characterization of Synthesized B-Type Carbonated Hydroxyapatite (CHAp) Based on Crab Shells

Oleh: Muarif, Muhamad Fajar , Yusuf, Yusril , Agipa, Ade Irmadiki

The synthesis and characterization of B-type CHAp based on mangrove crab shells (Scylla serrata) as a source of calcium using the precipitation method has been successfully carried out. Based on the FTIR results, the substitution of carbonate ion for phosphate, which indicates the formation of B-typ...

Sumber: Journal of Energy, Material, and Instrumentation Technology; Vol. 5 No. 1 (2024): Journal of Energy, Material, and Instrumentation Technology; 35-42

Design of Single Axis Solar Tracker Using Fresnel Lens Based on Internet of Things (IoT) For Optimizing Solar Cell Output Power

Oleh: 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 ...

Sumber: Journal of Energy, Material, and Instrumentation Technology; Vol. 6 No. 1 (2025): Journal of Energy, Material, and Instrumentation Technology; 16-28

Comparative Analysis of Hexagonal and Square Fuel Pin Geometry Designs of GFR using Uranium Carbide Fuel

Oleh: 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 ...

Sumber: Journal of Energy, Material, and Instrumentation Technology; Vol. 5 No. 3 (2024): Journal of Energy, Material, and Instrumentation Technology; 109-116

Differential and Cumulative Particle Size Distribution Analysis using Home Made Sieving Equipment

Oleh: Putri, Runita Rizkiyanti, Pradana, Johannes Aria, Kurniawan, Matthew Darrell

Particulate solids remain the most commonly used materials in the industry due to their characteristics, such as stability, purity, and ease of transportation. Particle size is one of the physical characteristics of a particulate solid that may affect its chemical characteristics. Hence, understandi...

Sumber: Journal of Energy, Material, and Instrumentation Technology; Vol. 6 No. 1 (2025): Journal of Energy, Material, and Instrumentation Technology; 29-38

Identification of Functional Groups of Rapitest Luster Leaf Products for Soil Phosphorus Testing Based on Color Changes using Fourier Transform Infrared Spectroscopy (FTIR)

Oleh: 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...

Sumber: Journal of Energy, Material, and Instrumentation Technology; Vol. 5 No. 3 (2024): Journal of Energy, Material, and Instrumentation Technology; 117-123

Sand Deposit Control Strategy on Centrifugal Pump Type Overhung 4 Size 4x11 Using API 682 Piping Plan 13

Oleh: Malik, Miftahul Fahrizal Nur, Hidayati, Noor, kamal, Dianta Mustofa

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...

Sumber: Journal of Energy, Material, and Instrumentation Technology; Vol. 6 No. 1 (2025): Journal of Energy, Material, and Instrumentation Technology; 39-46

Synthesis and Characterization of Activated Carbon from Pattikala Fruit Waste (Etlingera elatior)

Oleh: 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 ...

Sumber: Journal of Energy, Material, and Instrumentation Technology; Vol. 5 No. 4 (2024): Journal of Energy, Material, and Instrumentation Technology; 148-152

The Effect of Chitosan Addition on Phase Composition and Detection Sensitivity of Fe3O4/Chitosan Magnetic Label Nanoparticles Based on Giant Magnetoresistance Sensor

Oleh: 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...

Sumber: Journal of Energy, Material, and Instrumentation Technology; Vol. 5 No. 4 (2024): Journal of Energy, Material, and Instrumentation Technology; 153-160

Initial Study of Intrusion on The Serambi Nusantara Coast Using Geoelectrical Methods

Oleh: Delianti, Delianti, Choerullah, Andy , Muslim, Anis Aulia

The Serambi Nusantara area, based on geological conditions, has alluvial formations with sand that almost dominates, interspersed with clay rock throughout the location with swamp conditions in most parts of the area. Morphologically, Serambi Nusantara is a coastal area. Most of the population in th...

Sumber: Journal of Energy, Material, and Instrumentation Technology; Vol. 6 No. 2 (2025): Journal of Energy, Material, and Instrumentation Technology; 66-70

Effect of Corona Plasma Radiation on the Contact Angle and Wettability of Bamboo Surface

Oleh: Alfajrin, Achmad Chalid Afif, Muhlisin, Zaenul , Komariah, Rahma Nur

Bamboo is a widely utilized non-timber forest product, often innovated into laminated boards, particle boards, and plywood. The outer bamboo surface (skin) possesses high compressive strength but exhibits hydrophobic properties, limiting its wettability toward liquids. Plasma corona technology, oper...

Sumber: Journal of Energy, Material, and Instrumentation Technology; Vol. 6 No. 2 (2025): Journal of Energy, Material, and Instrumentation Technology; 71-79

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