Archives

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

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

  • 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.

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  • 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.

  • SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 7 Issue 2, September 2022
    Vol. 7 No. 2 (2022)

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    SPEKTRA Volume 7 issue 2 contains five papers: 1) Biofilter Manufacture of Azadirachta Indica Leaf Powder and its Effectiveness in Capturing Free Radicals of Cigarette Smoke, 2) Smart Seal Base on Wifi using Web Service PHP, 3) Implementation of TRS-398 Protocol in Routine Calibration of Linac by Determination of Slab Phantom on Water Phantom Correction Factor, 4) Intravenous Infusion Dosing System for Volume Control Based on Signal Periodic Measurement, and 5) Role of Isovector-Isoscalar Coupling on Charge Radius of Heavy and Superheavy Nuclei.

  • SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 7 Issue 1, April 2022
    Vol. 7 No. 1 (2022)

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    SPEKTRA Volume 7 issue 1 contains five papers: 1) Study of Crustal Structure of The Flores Island Using Receiver Function Method, 2) Characterization of (Mg0.6Zn0.4)TiO3 Ceramics as Dielectric Resonator Materials in Microwave Frequencies, 3) Identification of Soil Corrosion Potential for Planning in The Gas Pipeline Cathodic Protection System, 4) The Effect of Variation Concentration and Deposition Parameter to The Optical Characteristics and The Crystallite Properties of Zinc Oxide, and 5) The Analysis of Sound Transmission Loss on Laminated Glass.

  • SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 6 Issue 3, December 2021
    Vol. 6 No. 3 (2021)

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    SPEKTRA Volume 6 issue 3 contains 5 papers: 1) Spectroscopic and Radiative Properties Of SM3+ Doped Sodium-Lead-Zinc-Lithium-Borate Glasses; 2) Detection and Monitoring System on The Package Receiving Box; 3) Working Analysis of Space Time Trellis Code on Wifi Mimo(2x2) System OFDM; 4) The Relationship Between Time and Water Content of Fish Dried Using Solar Panel-Based Dryers; and 5) Linear Generator Prototype with Vertical Configuration of Sea Wave Power Plant.

  • SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 6 Issue 2, October 2021
    Vol. 6 No. 2 (2021)

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    SPEKTRA Volume 6 issue 2 contains 6 papers: 1) Numerical Analysis of Electric Force Distribution on Tumor Mass in DC Electric Field Exposure; 2) Study of The Effect of Magnetic Fields on Electroencephalography Measurement in Faraday’s Cage; 3) The Operational Mode of Optical Microscope Applying Photonic Jet Microscopy; 4) Analysis of Lattice Parameter, Error, and The Bandgap Energy in Cadmium Sulfide (CdS) Semiconductor Material; 5) The Parameter Analysis of Cubical Structured Cadmium Telluride (CdTe) Semiconductor Materials; and 6) The Simulation and Data Analysis of Temperature Sensor.

  • SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 6 Issue 1, April 2021
    Vol. 6 No. 1 (2021)

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    SPEKTRA Volume 6 issue 1 contains 8 papers: 1) The Development of Image Processing Method on The Automatic Reading System of The Glass Thermometer Using A Digital Camera; 2) The Data Acquisition Role on Static Test for Validation of RX320 Rocket Motor Design; 3) Seed Mediated Synthesis of Hexagonal S-Doped ZnO Nanorod and Its Physical Properties; 4) Increasing The Calcium Silicate Hydrate Amount in Reactive Powder Concrete Using Marble Powder; 5) Modification of Purun Tikus (Eleocharis Dulcis) as A Natural Fiber Composite Using KMnO4 and NaOH; 6) Simulation of Peak Ground Acceleration and Pseudo Spectral Acceleration of Palu Earthquake September 28th 2018; 7) The Bone Microstructure Identification Model Based on Backscatter Mode of Ultrasound; and 8) The Simulation of Granular Particle on Dry And Moisturized Porous Horizontal Surfaces.

  • SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 5 Issue 3, December 2020
    Vol. 5 No. 3 (2020)

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    SPEKTRA Volume 5 issue 3 contains 8 papers: 1) The Influence of Surfactant and Protective Colloid on Polyvinyl Acetate Emulsion Synthesized by Emulsion Polymerization Technique; 2) Analysis and Interpretation of Time-Lapse Micorgravity Data Case Study in Kota Lama Semarang Tourism Area; 3) The Compatibility of Model for Low Shear Flow Analysis in Developing Plasticized HTPB-Based Binder; 4) The Change of Rock Condition Observed by H/V Spectral and Ellipticity Curve Inversion Analysis (Case Study: Palu Earthquake September 28, 2018); 5) Analysis of A Peak Ground Acceleration Value and Earthquake Intensity Using Donovan Method in Banten Province; 6) Geophysical Forensic for Archaeological Exploration in Muarojambi, Indonesia; 7) Comparison Study of Vertical Cylinder Tank Diameter Measurement Between Strapping and Optical Method; and 8) Design of Neutronic Parameters of MTR Reactor Using WIMSD-5B/Batan-Fuel Codes.

  • SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 5 Issue 2, August 2020
    Vol. 5 No. 2 (2020)

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    SPEKTRA Volume 5 issue 2 contains 8 papers: 1) The Effect of Cobalt Content on Magnetic Properties of CoFe Alloys; 2) Uncertainty Analysis of Laboratory Measurement of Airborne Sound Insulation; 3) The Stability Studies of Mixed Halide Perovskite CH3NH3PbBrXI3-X Thin Films in Ambient with Air Humidity 70% using UV-Vis Spectroscopy and X-Ray Diffraction; 4) The Magnetic Properties Measurement of Coil For Gravitational Acceleration Determination; 5) A Preliminary Study of Radiation Quality Correction Factor (kQ) Determination for Well-Type Ionization Chamber; 6) The Monitoring System of Indoor Air Quality Based on Internet of Things; 7) Measuring Instrument for Refilled Drinking Water using a TDS Sensor; and 8) The Synthesis and Characterization of Zinc Oxide Thin Film Doping Selenium.

  • SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 5 Issue 1, April 2020
    Vol. 5 No. 1 (2020)

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    SPEKTRA Volume 5 issue 1 contains 9 papers: 1) Design of The Pollution Gas Carbon Monoxide (CO) Monitoring System Based on Microcontroller; 2) The Determination of Barium Strontium Titanate Thin Film Band Gap Energy Ba0,15Sr0,85TiO3 Using Ultraviolet-Visible Spectroscopy; 3) Synthesis and Characterization of Structural Nanocomposite Titanium Dioxide Copper-Doped Using The Impregnation Method; 4) Analysis of The Effect of Care Dose 4D Software Use on Image Quality and Radiation Dose on The CT Scan Abdomen; 5) Characteristics of Rainfall and Precipitable Water in The Annual and Semiannual Rainfall in The Area with Various Intensity of El Nino (Sumatera Case Study); 6) The Design of Display Digital Data Interface Clamp-Meter Complemented by Sensor GMR (Giant Magnetoresistance); 7) The Outbreak’s Modeling of Coronavirus (Covid-19) Using The Modified Seir Model in Indonesia; 8) Design of Metal Heat Conductivity Measurement Using Probe Method; and 9) Surface Morphology Of Sputtered Titanium-Aluminum-Nitride Coatings.

  • SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 4 Issue 3, December 2019
    Vol. 4 No. 3 (2019)

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    SPEKTRA Volume 4 issue 3 contains 5 papers: 1) Analysis of Structure and Antimicrobial Activity of CeO2 and Nd2O3 Nanoparticles; 2) Utilization of Coal Bottom Ash as Briquette Material; 3) Internet of Things of Electronic Seal Base on GPRS Short Message Service and Thingspeak; 4) Buried Waveguide Polymethylmethacrylate Modeling for Refractive Index Sensor Application using Finite Element Method; 5) The Application of Shift Method using Moving Laser on Cancer Cases in Head Area using 3DCRT and VMAT Technology.

  • SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 4 Issue 2, August 2019
    Vol. 4 No. 2 (2019)

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    SPEKTRA Volume 4 issue 2 contains 6 papers: 1) The Spring Variation in Two Dimensional Modeling Of Red Blood Cell Deformability Based on Granular; 2) Optimization of The Use of Fly Ash Is An Additive Portland Composite Cement (PCC); 3) Fluidization of A Bed of Solid Particles In A Two Dimensional Vertical Box; 4) Fruit Sweetness Characterization Using Impedance Spectroscopy Method; 5) Biosensor System Design for Dissolved Oxygen Measurement Using Current Mirror Circuit; 6) Multi-Channel Fry Counter Design Using Optocoupler Sensor.

  • SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 4 Issue 1, April 2019
    Vol. 4 No. 1 (2019)

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    SPEKTRA Volume 4 issue 1 contains 5 papers: 1) Proton Dripline for Isotone N = 18, 20, and 22 Using Modified Relativistic Mean Field (MRMF) Model; 2) The Effect of Poly (Ethylene Glycol) on The Photoluminescence Properties of Carbon Dots from Cassava Peels Synthesized by Hydrothermal Methods; 3) Acceleration Response Spectrum and Effective Duration of Lebak Earthquake January 23, 2018 in Jakarta Region; 4) Analysis The Effect of Primary Coil Length of Transformator to The Resulted Electromotif Force; 5) Heating and Quenching Procedure on The Making of Traditional Blacksmith Steel With High Quality.

  • SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 3 Issue 3, December 2018
    Vol. 3 No. 3 (2018)

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    SPEKTRA Volume 3 issue 3 contains 6 papers: 1) Two-Dimensional Dynamics Of Spherical Grain Floating On The Propagating Wave Fluid Surface, 2) Struktur Mikro Dan Sifat Magnetik Dari Lapisan Tipis Nanokomposit Fe3o4/Pvdf, 3) Pengaruh Gelombang Mikro (Microwave Assisted) Terhadap Kurva Histerisis Dari Bahan Ferromagnetik Copd Berbentuk Ellipsoid, 4) Identifikasi Ketebalan Lapisan Sedimen Dan Struktur Bawah Permukaan Di Zona Amblesan Kota Lama Semarang Berdasarkan Data Mikroseismik, 5) Synthesis Of Sodalite Zeolite From Coal Bottom Ash With Variation Of Naalo2 Concentration Using Alkali Melting Hydrothermal Method, 6) The Effect Of Synthetic Zeolites On Sensitivity And Stability Of Uric Acid Biosensor Using Cycle Voltametry Method.

  • SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 3 Issue 2, August 2018
    Vol. 3 No. 2 (2018)

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    SPEKTRA Volume 3 issue 2 contains 7 papers: 1) Fabrication and Characterization of The Composites of Resin - Husk of Rice and Resin - Rub Ash, 2) UV-Visible Optical Absorbance of Graphene Oxide in Copper Ionic Liquid Synthesized via Electrochemical Method Assisted by a Copper Coil, 3) Flow Units Determination Using Flow Zone Indicator for Carbonate Reservoir, 4) Optical Properties Analyses of Chlorophyll of Leaf Extract by UV-VIS Spectrometer as Pre-Study of Dye Sensitizer, 5) Imaging of 3-D Seismic Tomography for Internal Structure Under The Mountain Merapi Using The Lotos-10 Software, 6) Analog Computer for Studying Diatomic Molecular Spectra in Terahertz Frequency, 7) Two Static Fluid Dark Matter Model with Additional Cosmological Constant.

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