Vol. 87 No. 5: September 2025

Science and Engineering

• ADDITIVES AND BACTERIAL CELLULOSE (BC): FRIEND OR FOE?

  Nurul Nadhirah Ruzelan, Azila Adnan

  857-864

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• KEGAGALAN MEKANIKAL DALAM SEL FUEL MEMBRAN PERTUKARAN PROTON MECHANICAL FAILURE IN PROTON EXCHANGE MEMBRANE FUEL CELLS

  Noradiba Nordin, Nurato Nurato, Edy Herianto Majlan, Wan Ramli Wan Daud, Teuku Husaini, Masli Irwan Rosli, Abu Bakar Sulong, Darwin Sebayang

  865-874

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• EFFECTS OF AIR INTAKE RUNNER LENGTH AND DIAMETER ON THE VOLUMETRIC EFFICIENCY OF SI ENGINE

  Mohamad Firzan Ahmad Harazi, Abdul Aziz Hairuddin, Azizan As'arry, Siti Ujila Masuri

  875-886

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• OUTLIER DETECTION IN RAINFALL DATA USING EXTREME VALUE THEORY

  Wan Muhammad Haiqal Shah Mohd Sariff, Sayang Mohd Deni, Nor Azura Md Ghani, Ahmad Zia Ul-Saufie, Noor Fadhilah Ahmad Radi

  887-898

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• STUDY OF THE OPTIMUM FILTRATION FOR MAINTAINING IMAGE QUALITY AND REDUCING THE DOSE ON THE RADIODIAGNOSTIC

  Rizka Indra Prasetya, Mahrus Salam, Heryuli Aditesna, Vemi Ridantami, Wuntat Oktawijaya, Bilqis Latifah, Isti Rahmawati, Fath Priyadi, Fajar Panuntun, Selvi Lutfiana Putri, Siswanti, Nurhidayat Supriyanto, Jasmi Budi Utami, Thomas Candra Adrian, Sofyan Adisaputra

  899-906

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• SYNTHESIS AND CHARACTERIZATION OF MAGNESIUM OXIDE-DOPED IRON (III) OXIDE NANOPARTICLES BY SOL-GEL METHOD

  Haider J. Hassan, Ahmed Y. Alam

  907-914

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• ASSESSMENT OF SCATTERED X-RAYS TO THE THYROID GLAND OF RADIATION WORKERS IN COMPUTED TOMOGRAPHY (CT) ROOM

  Waseem Raad Yousifa, Suhairul Hashim, Fariza Suhailin

  915-923

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• EVALUATION ON TENSILE AND MORPHOLOGICAL PROPERTIES OF CHITOSAN IN PBAT BIO-COMPOSITE

  Muhamad Haikal Hamdan, Siti Noorbaini Sarmin, Nurjannah Salim, Mohammad Jawaid

  925-930

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• EXCELLENT REMOVAL COPPER PERFORMANCE BY COXFE3-XO4/ZNO/AC NANOCOMPOSITE

  Falichal Abida Fi Ramadhani, Robi Kurniawan, ST. Ulfawanti Intan Subadra, Hari Wisodo, Nurul Hidayat, Markus Diantoro, Nandang Mufti, Ahmad Taufiq

  931-938

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• MODIFICATION OF THE ANAND CONSTITUTIVE MODEL FOR ENHANCING PREDICTIVE ACCURACY OF 96.5SN-3.0AG-0.5CU INELASTIC DEFORMATION BEHAVIOR

  Aliff Farhan Mohd Yamin, Jamaluddin Mahmud

  939-949

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• THE INFLUENCE OF OZONE EXPOSURE ON ORGANOLEPTIC AND FLAVONOID LEVELS OF RED BETEL (PIPER CROCATUM RUIZ & PAV.) LEAVES

  Yonatan, Ahmad Khalil Yaqubi, Binti Musyaropah, Hery Purnobasuki, Yunus Susilo, Winarno, Suryani Dyah Astuti

  951-958

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• IONIC CONDUCTIVITY, STRUCTURAL ANALYSIS AND BIODEGRADABLE PROPERTIES OF 2- HYDROXYETHYL CELLULOSE DOPED AMMONIUM CHLORIDE WITH PLASTICIZED ETHYLENE CARBONATE SOLID BIOPOLYMER ELECTROLYTE

  Aqidah Mohd Noor, Muhammad Nazmi Hakim Mahmud, Nur Hidayah Ahmad, Nurhafizah Hasim

  959-965

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• EFFECTS OF BLAINVILLEA ACMELLA ON THE BONE MECHANICAL PROPERTIES OF OVARIECTOMIZED RATS

  Mohd Maaruf Abdul Malik, Goot Heah Khor , ‘Atiqah Azam, Nurul Raudzah Adib Ridzuan, Elvy Suhana Mohd Ramli, Isa Naina Mohamed, Ahmad Nazrun Shuid

  967-974

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• EFFICACY OF MARBLE POWDER AS A STABILIZER FOR EXPANSIVE CLAY SUBGRADES

  Suraj Nair, Abhishek Bagal, Tanishque Sarda, Paras Shah, Manoj Anaokar

  975-985

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• OPTIMISATION OF FRUIT VINEGAR PROCESS FROM BACCAUREA LANCEOLATA (MIQ.) MÜLL.ARG. USING CENTRAL COMPOSITE DESIGN WITH ANTIOXIDANT AND ANTIMICROBIAL POTENTIAL

  Hasdian Mudin, Mohammad Amil Zulhilmi Benjamin, Nor Azizun Rusdi, Mohd Azrie Awang

  987-998

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• DEVELOPMENT OF A SPECTROPHOTOMETRIC METHOD FOR THE ASSAY OF BROMHEXINE HYDROCHLORIDE IN ITS PURE FORM AND IN ITS PHARMACEUTICAL PREPARATIONS USING DIAZOTIZATION - COUPLING REACTION

  Hiba Abdul Salam Al-Hafidh, Rabee Mohammed Albadgari

  999-1006

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• TAGUCHI OPTIMIZATION OF X70 CARBON STEEL HEAT TREATMENT: A STUDY ON HARDNESS, THICKNESS AND PHASE ANALYSIS

  Umi Zalilah, Dharmesh Kumar, Skandha Kumar, Mazli Mustapha

  1007-1014

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• EXPERIMENTAL INVESTIGATION OF THE TENSILE CHARACTERISTICS OF SHOT PEENING FOR ALUMINUM METAL COMPOSITES

  Awatif Mustafa Ali, Adil Abed Nayeeif, Kamal Abdulkareem Mohammed

  1015-1024

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• EFFECT OF STIRRUPS AT BEAM CROSSINGS USING COCOPEAT AS A CONCRETE AGGREGATE SUBSTITUTE FOR SAND

  T. Q. K. Lam, T. A. Le

  1025-1035

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• PREDICTIVE ROCK MASS CLASSIFICATION PARAMETER MODELS FROM ROCK MATERIAL ENGINEERING TESTS

  Ahmad Faiz Salmanfarsi, Haryati Awang

  1037-1052

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• ANALYSIS OF NON-OPTIMAL PV SIZING AND PLACEMENT IN DISTRIBUTION NETWORKS WITH COMMERCIAL, INDUSTRIAL, AND RESIDENTIAL LOADS

  Hanis Farhah Jamahori, Abid Ali, Siti Salwa Mat Isa

  1053-1062

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