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 130 artikel.

Morphological Study of Electrospun Polyvinylpyrrolidone Fibers at High Concentration Using Water and Ethanol Solvents

Oleh: Nugroho, Doni Bowo, Kamal, Nada Nadzira Ayasha, Sidabalok, Jenni Bunga Enjelita

In this study, polyvinylpyrrolidone (PVP) (Mw ~40,000 g/mol) fibers were fabricated using distilled water and ethanol via an electrospinning approach. Morphological evaluations were carried out with a Scanning Electron Microscopy (SEM). Fiber diameters were analyzed with ImageJ. Solution Concentrati...

Sumber: Journal of Energy, Material, and Instrumentation Technology; Vol. 6 No. 4 (2025): Journal of Energy, Material, and Instrumentation Technology; 182-189

Carbonated Hydroxyapatite (CHAp)/PCL/Gelatin Scaffold Synthesized from Wrinkled Purple Snail Shell Waste for Bone Regeneration

Oleh: Salsabilla, Fadilah, Wati, Rosita, Herbanu, Aldi

Traffic accidents are a major cause of bone fractures in Indonesia, highlighting the urgent need for effective biomaterials in bone regeneration. This study synthesized carbonated hydroxyapatite (CHAp) from wrinkled purple sea snail shells (Nucella lamellosa) using a precipitation method and sinteri...

Sumber: Journal of Energy, Material, and Instrumentation Technology; Vol. 7 No. 1 (2026): Journal of Energy, Material, and Instrumentation Technology; 7-16

Synthesis of ZnO/Ag Nanocomposites with Variatons of Zinc Nitrate Hexahydrate as an Antibacterial Agent against Escherichia coli

Oleh: Maulita, Zeiiffa Alifia, Manurung, Posman, Suprihatin

The synthesis of ZnO/Ag nanocomposites was carried out using different concentrations of Zn(NO3)2.6H2O precursors (0.04 M, 0.06 M, 0.08 M, and 0.1 M) by wet chemical precipitation. This study aimed to characterize the structure, morphology, and antibacterial activity of ZnO/Ag nanocomposites against...

Sumber: Journal of Energy, Material, and Instrumentation Technology; Vol. 7 No. 1 (2026): Journal of Energy, Material, and Instrumentation Technology; 17-25

Fabrication of Bioceramic Carbonated Hydroxyapatite–Chitosan Composite Scaffold Derived from River Snail Shells via Freeze-Drying for Bone Grafting Applications

Oleh: Wati, Rosita, Alnovera, Vayza Deva, Herbanu, Aldi

The prevalence of bone fractures in Indonesia has increased by up to 8.5%, making cost-effective biomaterial alternatives for bone grafting applications necessary. This study aims to synthesize a hydroxyapatite carbonate (CHAp) composite scaffold from river snail shells (Semisulcospira libertina) an...

Sumber: Journal of Energy, Material, and Instrumentation Technology; Vol. 6 No. 4 (2025): Journal of Energy, Material, and Instrumentation Technology; 198-208

Exponential-Offset Modelling and XRD Correlation of SOH Degradation in LiFePO4 Batteries under Extreme Loading

Oleh: Latif, Chaironi, Maulana, Tubagus Adam Jody, Yogianto, Mohammad Fahmi Ilmi

Understanding the relationship between electrochemical degradation and structural changes is critical for improving the reliability of lithium-ion batteries. In this study, the state of health (SOH) of 18650-type lithium iron phosphate (LiFePO4, LFP) cells was evaluated under extreme loading using d...

Sumber: Journal of Energy, Material, and Instrumentation Technology; Vol. 6 No. 4 (2025): Journal of Energy, Material, and Instrumentation Technology; 174-181

Biopolymer Gel from Pineapple Peel (Ananas comosus) Waste-Based Gel with Sodium Chloride (NaCl) for Optimizing Electrocardiogram (ECG) Signal Recording

Oleh: Mahardianti, Meita, Septha Kharisma, Salsabila, Wati, Rosita

Pineapple peel (Ananas comosus) as organic waste has potential as a raw material for biomedical gel in electrocardiogram (ECG) recording. ECG gel functions as a conductive medium facilitating electrical transmission between skin and electrodes to improve cardiac signal accuracy. This study developed...

Sumber: Journal of Energy, Material, and Instrumentation Technology; Vol. 7 No. 1 (2026): Journal of Energy, Material, and Instrumentation Technology; 26-35

Fabrication and Characterization of a Novel Bentonite-Zeolite Ceramic Membrane for Low-Energy Membrane Bioreactor (MBR) Applications

Oleh: Mayasari, Rizka, Djana, Miftahul , Utari, Ririn

The development of durable, low-cost, and energy-efficient membranes is a critical challenge in advancing Membrane Bioreactor (MBR) technology. This study details the fabrication, characterization, and performance of a novel tubular ceramic membrane derived from abundant, inexpensive local minerals:...

Sumber: Journal of Energy, Material, and Instrumentation Technology; Vol. 7 No. 1 (2026): Journal of Energy, Material, and Instrumentation Technology; 36-42

Monte Carlo Simulation of Dose Distribution in Prostate Cancer of Boron Neutron Capture Therapy (BNCT) Using PHITS v.3.35

Oleh: Basyaruddin, Muhammad Nashrun, Pratiwi, Raditya Faradina , Sardjono, Yohannes

Prostate cancer is the fifth leading cause of cancer death in men worldwide. With its ability to selectively kill tumor cells, Boron Neutron Capture Therapy (BNCT) has reemerged as a promising radiation therapy option for treating prostate cancer. This therapy is known for delivering high doses dire...

Sumber: Journal of Energy, Material, and Instrumentation Technology; Vol. 7 No. 1 (2026): Journal of Energy, Material, and Instrumentation Technology; 43-53

Analysis of Electrical Potential in a Thermoelectric Generator Utilizing Cooking Stove Waste Heat

Oleh: Pauzi, Gurum Ahmad, Aprilia Habibah, Ali Akbar Raksa Gandi

The need for sustainable alternative energy sources has driven increasing interest in waste heat utilization, particularly from domestic and commercial activities such as cooking stoves. This study analyzes the potential for electrical energy generation from waste heat produced by commercial restaur...

Sumber: Journal of Energy, Material, and Instrumentation Technology; Vol. 6 No. 4 (2025): Journal of Energy, Material, and Instrumentation Technology; 230-235

Mechanical Homogenization of Biochar Porous Structures Using Two-Dimensional RVE: A Study of Finite Element Methods on the Relationship of Actual Porosity and Effective Elastic Modulus

Oleh: Luthfiantoro, Naufal Nabiha, Fikri, Ahmad Atif

This study analyzes the mechanical response of porous biochar using a 2D FEM–RVE homogenization approach to investigate the effect of mesh-based actual porosity and microstructural arrangement on stiffness and stress concentration. Three types of RVEs (regular, shifted, and random) were simulated ...

Sumber: Journal of Energy, Material, and Instrumentation Technology; Vol. 7 No. 1 (2026): Journal of Energy, Material, and Instrumentation Technology; 54-64

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