Vol. 15 No. 2 (2023): September 2023

Research Article

• Effect of TiO2 on Orange Peel Activated Carbon Composite in Reducing Carbon Monoxide and Hydrocarbon Gas Emissions

  Ya' Muhammad Arsyad (Department of Physics, Faculty of Mathematic and Natural Science, Tanjungpura University, Pontianak, 78124, Indonesia)
  Dwiria Wahyuni (Department of Physics, Faculty of Mathematic and Natural Science, Tanjungpura University, Pontianak, 78124, Indonesia)
  Nurhasanah Nurhasanah (Department of Physics, Faculty of Mathematic and Natural Science, Tanjungpura University, Pontianak, 78124, Indonesia)
  Bintoro Siswo Nugroho (Department of Physics, Faculty of Mathematic and Natural Science, Tanjungpura University, Pontianak, 78124, Indonesia)
  Riza Adriat (Department of Physics, Faculty of Mathematic and Natural Science, Tanjungpura University, Pontianak, 78124, Indonesia)
  Agus Prasetiono (UPT PKB, Transportation Agency of Pontianak city, Pontianak, 78244, Indonesia)
  Wahyu Tri Hidayat (UPT PKB, Transportation Agency of Pontianak city, Pontianak, 78244, Indonesia)

  73-80

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  DOI : 10.25077/jif.15.2.73-80.2023

  Abstract View : 1715

  PDF downloads: 1460

• Utilization of LDPE Plastic Waste, Coconut Shell and Coconut Husk as Basic Material for Briquettes with Tapioca Starch Adhesive

  Sheilla Rully Anggita (Department of Physics, Faculty of Science and Technology, UIN Walisongo, Semarang, 50185, Indonesia)
  Renanda Fasha Devarasalya (Department of Physics, Faculty of Science and Technology, UIN Walisongo, Semarang, 50185, Indonesia)
  Istikomah Istikomah (Department of Physics, Faculty of Science and Technology, UIN Walisongo, Semarang, 50185, Indonesia)
  Ari Bawono (Department of Industrial Technology, Bachelor of Automation Engineering Technology, Diponegoro University, Vocational School, Semarang, 50275, Indonesia)

  81-90

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  DOI : 10.25077/jif.15.2.81-90.2023

  Abstract View : 1427

  PDF downloads: 1175

• Synthesis of Fluorescent Carbon Dots (CDs) Using Laser Ablation Method for Bioimaging Application

  Jumardin Jumardin (Department of Physics, Faculty of Sciences and Technology, Alauddin State Islamic University of Makassar Gowa, 92113, Indonesia)
  Akhiruddin Maddu (Department of Physics, Faculty of Mathematics and Natural Sciences, IPB University, Bogor, 16680, Indonesia)
  Kokoeh Santoso (Department of Anatomy, Physiology and Pharmacology, School of Veterinary and Biomedical, IPB University Bogor, 16680, Indonesia)
  Isnaeni Isnaeni (Research Center for Photonics, National Research and Innovation Agency (Badan Riset dan Inovasi Nasional, BRIN) BJ Habibie Science and Technology Park, Banten 15314, Indonesia)

  91-105

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  DOI : 10.25077/jif.15.2.91-105.2023

  Abstract View : 1671

  PDF downloads: 1135

• Frequency and Amplification for Assessing site Effects and PVS in the Padang City Railway

  Ahmad Fauzi Poha (Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Pauh, Padang 25163, Indonesia)
  Dwi Pujiastuti (Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Pauh, Padang 25163, Indonesia)
  Nadila Syarah (Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Pauh, Padang 25163, Indonesia)
  Nurul Annisa (Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Pauh, Padang 25163, Indonesia)

  106-115

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  DOI : 10.25077/jif.15.2.106-115.2023

  Abstract View : 590

  PDF downloads: 782

• Digital Image Processing for Determining the Speed of Blood Flow in the Heart Based on the Doppler Effect

  Eif Sparzinanda (Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Padang, 25163, Indonesia)
  Sri Oktamuliani (Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Padang, 25163, Indonesia)
  Dian Fitriyani (Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Padang, 25163, Indonesia)
  Imam Taufiq (Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Padang, 25163, Indonesia)

  116-122

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  DOI : 10.25077/jif.15.2.116-122.2023

  Abstract View : 803

  PDF downloads: 734

• Identification of the Manna Segment Sumatran Fault Using GGMplus Gravity Anomaly Data with the Second Vertical Derivative (SVD) Method

  Arezzo Fabio Fentola Parinus Frezo Leni Ikhwandi (Department of Physics, Bengkulu University, Bengkulu, 38371, Indonesia)
  Arif Ismul Hadi (Department of Geophysics, Bengkulu University, Bengkulu, 38371, Indonesia)
  Hilmi Zakariya (Geophysical, Meteorology Climatology and Geophysical Agency, Bengkulu, 38213, Indonesia)
  Refrizon Refrizon (Department of Geophysics, Bengkulu University, Bengkulu, 38371, Indonesia)

  123-136

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  DOI : 10.25077/jif.15.2.123-136.2023

  Abstract View : 1768

  PDF downloads: 1293

• Uncertainty in the Management of Tropical Peatlands for Oil Palm Plantations due to Drainage Practices

  Aswandi Aswandi (Faculty of Agriculture, Universitas Jambi, Jambi, 36361, Indonesia)

  137-145

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  DOI : 10.25077/jif.15.2.137-145.2023

  Abstract View : 924

  PDF downloads: 576

• Relationship between Solar Flux and Sunspot Activity Using Several Regression Models

  Ruben Cornelius Siagian (Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, Medan, 20221, Indonesia)
  Lulut Alfaris (Department of Marine Technology, Politeknik Kelautan dan Perikanan, Pangandaran, 46396, Indonesia)
  Ghulab Nabi Ahmad (Institute of Applied Sciences, Mangalayatan University, Aligarh, 202145, India)
  Nazish Laeiq (Department of Computer Science, Institute of Technology and Management Aligarh, 202140, Indonesia)
  Aldi Cahya Muhammad (Department of Electrical and Electronic Engineering, Islamic University of Technology, Kustia, 7003, Bangladesh)
  Ukta Indra Nyuswantoro (Department of Structure Engineering, Asiatek Energi Mitratama, Jakarta, 12870, Indonesia)
  Budiman Nasution (Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan, Medan, 20221, Indonesia)

  146-165

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  DOI : 10.25077/jif.15.2.146-165.2023

  Abstract View : 1547

  PDF downloads: 1129

• An Analysis of the Schrodinger Equation Model for the Distribution Rate of Stock Returns

  Agus Kartono (Department of Physics, Faculty of Mathematical and Natural Sciences, IPB University (Bogor Agricultural University), Jalan Meranti, Building Wing S, 2nd Floor, Kampus IPB Dramaga, Bogor 16680, Indonesia)
  Hilda Meiranita Prastika Dewi (Department of Physics, Faculty of Mathematical and Natural Sciences, IPB University (Bogor Agricultural University), Jalan Meranti, Building Wing S, 2nd Floor, Kampus IPB Dramaga, Bogor 16680, Indonesia)
  Irmansyah Irmansyah (Department of Physics, Faculty of Mathematical and Natural Sciences, IPB University (Bogor Agricultural University), Jalan Meranti, Building Wing S, 2nd Floor, Kampus IPB Dramaga, Bogor 16680, Indonesia)

  166-174

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  DOI : 10.25077/jif.15.2.166-174.2023

  Abstract View : 688

  PDF downloads: 666

• Wind Gust Parameterization Assessment under Convective and Non-convective Events: A Case Study at the Kertajati International Airport

  Muhammad Rafid Zulfikar (Undergraduate Program in Meteorology, Faculty of Earth Sciences and Technology. Institut Teknologi Bandung, Bandung, 40132, Indonesia)
  Muhammad Rais Abdillah (Atmospheric Sciences Research Group, Faculty of Earth Sciences and Technology, Institut Teknologi Bandung, Bandung, 40132, Indonesia)
  Prasanti Widyasih Sarli (Structural Engineering Research Group, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Bandung, 40132, Indonesia)

  175-187

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  DOI : 10.25077/jif.15.2.175-187.2023

  Abstract View : 918

  PDF downloads: 603