Vol. 9 No. 1 (2023)

View Vol. 9 No. 1 (2023)
Published: 18-08-2023

Full Issue

Articles

  • Clustering and Risk Analysis of The Earthquake in Sulawesi Using Mini Batch K-Means, K-Medoids, and Maximum Likelihood Method

    Amirin Kusmiran
    🏢 Affiliation Details
    (1) Amirin Kusmiran: Department of Physics, Faculty of Science and Technology, Universitas Islam Negeri Alauddin Makassar, Makassar
    📄 Pages: 1-23
    📊 Views: 56 , ⬇️ Downloads: 35 , 🌐️ DOI: 10.22373/ekw.v8i2.13027

  • Characteristics of Liquid Smoke From Young Coconut Shells at Various Pyrolysis Temperature

    Ressa Fitra Adinda, Muhammad Faisal, Fauzi Muhammad Djuned
    🏢 Affiliation Details
    (1) Ressa Fitra Adinda: Department of Chemical Engineering, Faculty of Engineering, Universitas Syiah Kuala, Banda Aceh
    (2) Muhammad Faisal: Department of Chemical Engineering, Faculty of Engineering, Universitas Syiah Kuala, Banda Aceh
    (3) Fauzi Muhammad Djuned: Halal Research Center, Universitas Syiah Kuala, Banda Aceh
    📄 Pages: 24-36
    📊 Views: 53 , ⬇️ Downloads: 47 , 🌐️ DOI: 10.22373/ekw.v9i1.14225

  • Production of Graphene By Coconut Shell As an Electrode Primary Battery Cell

    Elsa Pasaribu, Rikson Siburian, Minto Supeno
    🏢 Affiliation Details
    (1) Elsa Pasaribu: Post-graduated School Program, Department of Chemistry, Faculty of Mathematics and Sciences, University of Sumatera Utara, Medan
    (2) Rikson Siburian: Department of Chemistry, Faculty of Mathematics and Sciences, University of Sumatera Utara, Medan
    (3) Minto Supeno: Department of Chemistry, Faculty of Mathematics and Sciences, University of Sumatera Utara, Medan
    📄 Pages: 37-47
    📊 Views: 81 , ⬇️ Downloads: 40 , 🌐️ DOI: 10.22373/ekw.v9i1.14880

  • Atomic Structure and Its Connection to The Quranic Verses' Context

    Abdul Mujala, Muhammad Reza, Kana Puspita
    🏢 Affiliation Details
    (1) Abdul Mujala: Sekolah Menengah Atas Negeri 1 Beutong, Kabupaten Nagan Raya, Aceh
    (2) Muhammad Reza: Chemistry Education Study Program, Faculty of Education, Universitas Islam Negeri Ar-Raniry, Banda Aceh
    (3) Kana Puspita: Department of Chemistry, FKIP, Universitas Syiah Kuala, Banda Aceh
    📄 Pages: 48-60
    📊 Views: 40 , ⬇️ Downloads: 24 , 🌐️ DOI: 10.22373/ekw.v9i1.14842

  • Synthesis of Carbon Dots From Empty Fruit Bunch Biochar an Acid-Free Hydrothermal Method

    Marpongahtun Marpongahtun, Rufina Pramudita, Saharman Gea, Amru Daulay
    🏢 Affiliation Details
    (1) Marpongahtun Marpongahtun: Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara, Medan
    (2) Rufina Pramudita: Postgraduate School, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara, Medan
    (3) Saharman Gea: Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara, Medan
    (4) Amru Daulay: Postgraduate School, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara, Medan
    📄 Pages: 61-70
    📊 Views: 58 , ⬇️ Downloads: 41 , 🌐️ DOI: 10.22373/ekw.v9i1.14524

  • Effectiveness of Hydrochloric Acid Activated Bentonite in Local Salt Purification

    Muslimah Muslimah, Puji Wahyuningsih, Yusnawati Yusnawati
    🏢 Affiliation Details
    (1) Muslimah Muslimah: Department of Chemistry, Faculty of Engineering, University of Samudra, Langsa, Aceh
    (2) Puji Wahyuningsih: Department of Chemistry, Faculty of Engineering, University of Samudra, Langsa, Aceh
    (3) Yusnawati Yusnawati: Department of Industrial Engineering, Faculty of Engineering, University of Samudra, Langsa, Aceh
    📄 Pages: 71-80
    📊 Views: 74 , ⬇️ Downloads: 42 , 🌐️ DOI: 10.22373/ekw.v9i1.15229

  • Hydrogel Films Derived Water Hyacinth Stems And Banana Peels Pectin: Tensile Performance And Swelling Ability

    Retno Febriyanti, Muthia Elma, Iryanti Fatyasari Nata, Ni Kadek Devi Ananda Saraswati, Paskah Fransiska Afrida Simatupang
    🏢 Affiliation Details
    (1) Retno Febriyanti: Chemical Engineering Department, Lambung Mangkurat University, Banjarbaru, South Kalimantan
    (2) Muthia Elma: Doctoral Program of Environmental Science, Postgraduate Program, Lambung Mangkurat University, Kayutangi, Banjarmasin, South Kalimantan
    (3) Iryanti Fatyasari Nata: Chemical Engineering Department, Lambung Mangkurat University, Banjarbaru, South Kalimantan
    (4) Ni Kadek Devi Ananda Saraswati: Materials and Membranes Research Group (M2ReG). Lambung Mangkurat University, Banjarbaru, South Kalimantan
    (5) Paskah Fransiska Afrida Simatupang: Materials and Membranes Research Group (M2ReG). Lambung Mangkurat University, Banjarbaru, South Kalimantan
    📄 Pages: 81-98
    📊 Views: 61 , ⬇️ Downloads: 28 , 🌐️ DOI: 10.22373/ekw.v9i1.16419

  • Synthesis of Tungsten Trioxide/Hydroxyapatite (WO3/HAp) Photocatalyst For Methylene Blue Degradation

    Khalid Mizar, Sri Mulyati, Nasrul Arahman
    🏢 Affiliation Details
    (1) Khalid Mizar: Department of Chemical Engineering, Universitas Syiah Kuala, Darussalam, Banda Aceh
    (2) Sri Mulyati: Magister Program of Chemical Engineering, Faculty of Engineering, Universitas Syiah Kuala, Darussalam, Banda Aceh
    (3) Nasrul Arahman: Graduate School of Environmental Management, Universitas Syiah Kuala, Darussalam, Banda Aceh
    📄 Pages: 99-110
    📊 Views: 24 , ⬇️ Downloads: 38 , 🌐️ DOI: 10.22373/ekw.v9i1.16525

  • The Application and Relevancy of Rainfall-Runoff-Inundation (RRI) Model in Indonesia

    M. Faisi Ikhwali, Budi Azhari, Alfin Khari, Suardi Nur, Abd Mujahid Hamdan, Kingkao Prommacot
    🏢 Affiliation Details
    (1) M. Faisi Ikhwali: Department of Environmental Engineering, UIN Ar-Raniry Banda Aceh, Aceh
    (2) Budi Azhari: Departement of Mathematics Education, UIN Ar-Raniry Banda Aceh, Aceh
    (3) Alfin Khari: BKKBN Representative of Aceh, Banda Aceh, Indonesia
    (4) Suardi Nur: Department of Environmental Engineering, UIN Ar-Raniry Banda Aceh, Aceh
    (5) Abd Mujahid Hamdan: Department of Environmental Engineering, UIN Ar-Raniry Banda Aceh, Aceh
    (6) Kingkao Prommacot: Department of Civil engineering, Northeastern University, Khon Kaen
    📄 Pages: 111-124
    📊 Views: 42 , ⬇️ Downloads: 27 , 🌐️ DOI: 10.22373/ekw.v9i1.14577

  • Effect of Acetobacter aceti Concentration and Fermentation Time on Acetic Acid Content Produced From Seaweed Gracilaria sp.

    Muhammad Ridwan Harahap, Reni Silvia Nasution, Husniah Nadhifa, Ana Khairani
    🏢 Affiliation Details
    (1) Muhammad Ridwan Harahap: Department of Chemistry, Faculty of Science and Technology, Universitas Islam Negeri Ar-Raniry, Banda Aceh
    (2) Reni Silvia Nasution: Department of Chemistry, Faculty of Science and Technology, Universitas Islam Negeri Ar-Raniry, Banda Aceh
    (3) Husniah Nadhifa: Department of Chemistry, Faculty of Science and Technology, Universitas Islam Negeri Ar-Raniry, Banda Aceh
    (4) Ana Khairani: Department of Chemistry, Faculty of Science and Technology, Universitas Islam Negeri Ar-Raniry, Banda Aceh
    📄 Pages: 125-137
    📊 Views: 78 , ⬇️ Downloads: 28 , 🌐️ DOI: 10.22373/ekw.v9i1.26631