Archives

  • SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 10 Issue 3, December 2025
    Vol. 10 No. 3 (2025)

  • SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 10 Issue 2, August 2025
    Vol. 10 No. 2 (2025)

    The articles in this issue from 2 countries: Indonesia and Nepal. We are grateful for all the contributions of the authors. We also appreciate the professional reviewers who are an essential part of this issue.

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  • SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 10 Issue 1, April 2025
    Vol. 10 No. 1 (2025)

    The articles in this issue from 2 countries: Indonesia and Taiwan. We are grateful for all the contributions of the authors. We also appreciate the professional reviewers who are an essential part of this issue.

  • SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 9 Issue 3, December 2024
    Vol. 9 No. 3 (2024)

    SPEKTRA Volume 9 issue 3 contains six papers: 1) Laser-Assisted Scattering with Screened Diatomic Potential, 2) Phase Dynamics in 3D Superconductors: Analysis Using the Sine-Gordon, 3) Application of Variational Quantum Eigensolver for Ground State Energies Calculation in Hydrogen and Helium Atomic Sequences, 4) Geochemical and Magnetic Suseptibility Analysis for Critical Minerals Detection in Igneous Rocks and Beach Sand, 5) Seismometer Health Diagnosis Based on Cross Spectral Density Coherence Method in Indonesia Seismic Networks, and 6) The Effects of Stellar Wind, Rotation Velocity, and Overshoot Parameters on The Evolution of Massive Stars using MESA: Case Study of MPG 324, MPG 355, MPG 682.

    The articles in this issue from 4 countries: Indonesia, Nepal, New Zealand, and Malaysia. We are grateful for all the contributions of the authors. We also appreciate the professional reviewers who are an essential part of this issue.

  • SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 9 Issue 2, August 2024
    Vol. 9 No. 2 (2024)

    SPEKTRA Volume 9 issue 2 contains five papers: 1) Thickness Measurement and Sensitivity of Copper/Nickel Electroplating Results of Electrolyte Solution Temperature Variation, 2) Exploring Weak Gravitational Lensing Effects by a Regular Black Hole, 3) Enhanced Approaches to Gravitational Lensing: A Regular Charged Black Hole in Weak Field Limit, 4) Synthesis Process and Nutritional Evaluation of Plantain as a Supplementary Food for Toddlers in Sierra Leone: A Study Utilizing Biuret’s, Benedict’s, and Iodine Solution Test, and 5) Gravitational Lensing for A Spherically Symmetric Regular Charged Black Hole in Weak Field Limit.

    The articles in this issue from 2 countries: Indonesia and Sierra Leone. We are grateful for all the contributions of the authors. We also appreciate the professional reviewers who are an essential part of this issue.

  • SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 9 Issue 1, April 2024
    Vol. 9 No. 1 (2024)

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    SPEKTRA Volume 9 issue 1 contains five papers: 1) Effect of 30˚C Electrolyte Temperature on The Sensitivity Cu/Ni, 2) Pair Correlation Influence on Superconductors Josephson Penetration Depth, 3) Development of a Real-Time Gas Concentration Measurement System Using Internet of Things-Based Monitoring, 4) Rainfall Classification Analysis Using Naïve Bayes Classifier Based on Air And Wind Temperatures in Serang City, and 5) Impacts of Gorkha Earthquakes: A Comprehensive Study.

    The articles in this issue from 2 countries: Indonesia and Nepal. We are grateful for all the contributions of the authors. We also appreciate the professional reviewers who are an essential part of this issue.

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  • SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 8 Issue 3, December 2023
    Vol. 8 No. 3 (2023)

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    SPEKTRA Volume 8 issue 3 contains five papers: 1) Aircraft Traffic Noise Analysis at Kualanamu International Airport Medan, 2) Development of DC-DC Buck Converter for Solar Panel Energy Storage Through Load Optimization and Feedback Circuit, 3) Rice Sample Vaporiation Method on Meter Testing Resistive Water Content Based on Ultrasonic Mist, 4) Synthesis and Characterization Analysis of Fe3O4/SiO2 Core Shell, and 5) Implementation of Gabella Method and Random Forest for Ground Clutter Detection in Padang Weather Radar Data.

    The articles in this issue from 3 countries: Indonesia, Norway and Malaysia. We are grateful for all the contributions of the authors. We also appreciate the professional reviewers who are an essential part of this issue.

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  • SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 8 Issue 2, August 2023
    Vol. 8 No. 2 (2023)

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    SPEKTRA Volume 8 issue 2 contains five papers: 1) The Comparison of 2D Dose Patient-Specific Quality Assurance Between Monte Carlo-Convolution and Modified Clarkson Integration Algorithm, 2) Synthesize of TiO2 Nanoparticles by Planetary Ball Mill for Dye-Sensitized Solar Cells (DSSC) Photoelectrode Application, 3) Experimental and Computational Study of Nitrogen-Doped TiO2 as A Photoelectrode, 4) Investigation of Subsurface Groundwater Using The Ves Method Around Dendam Lake, Bengkulu City, Indonesia, and 5) Identification of Physical Oceanographic Parameters And Mixing Types at The Transitional Season I in The Estuary of Air Manna Regency South Bengkulu.

    The articles in this issue from 4 countries: Indonesia, Gambia, Taiwan and China. We are grateful for all the contributions of the authors. We also appreciate the professional reviewers who are an essential part of this issue.

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  • SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 8 Issue 1, April 2023
    Vol. 8 No. 1 (2023)

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    SPEKTRA Volume 8 issue 1 contains six papers: 1) Combined Method of Bulk Material Shielding Evaluation For 200 MeV High Energy Neutron Source Using Phits Modelling and Partial Density, 2) Characterization of Energy Band Gap Thin Film BaTiO3 – BaZr0.5Ti0.5O3 Using Difusion Reflectance Spectroscopy (DRS) Method, 3) Exploring The Interconnectedness of Cosmological Parameters and Observations: Insights Into The Properties and Evolution of The Universe, 4) A Combined Method of 1D And 2D Resistivity for Groundwater Layer Estimation at A Farming Area in Rejomulyo Village, 5) High Strength Mango Leaf Waste/Polyurethane Composite Reinforcement Using Quartz Material, and 6) The Correlation Between Electric Current Produced and The Light Source Distance in Photoelectric Effect Experiments.

    The articles in this issue from 2 countries: Indonesia and Malaysia. We are grateful for all the contributions of the authors. We also appreciate the professional reviewers who are an essential part of this issue.

  • SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 7 Issue 3, December 2022
    Vol. 7 No. 3 (2022)

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    SPEKTRA Volume 7 issue 3 contains five papers: 1) Design A Monitoring System of A Single-Phase Electricity Meter Based on The Internet of Things; 2) Impact Profile of Enso and Dipole Mode on Rainfall as Anticipation of Hydrometeorological Disasters in The Province of South Sumatra; 3) Fabrication of Plastic Scintillator Using Polystyrene Matrix Based; 4) The Density Functional Theory Study of Li-Ion Diffusion in Na-Doped Li4Ti5O12 as Lithium-Ion Battery Anode; and 5) Magnetic Field-Dependent Electric Current on A Periodic POLY(DA)-POLY(DT) DNA Molecule Structure.

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