VOLUME 21, MARCH 2025

Issue DOI: 10.24191/esteem.v21iMarch

Editorial Board, Foreword and Content

Transesterification of cooking palm oil via Mn-Al mixed oxides catalysts: effects of metal ratio

Siti Athirah Ramli, Wan Zuraida Wan Kamis, Nur Alwani Ali Bashah , Vicinisvarri Inderan, Norain Isa

Optimization of acid orange II degradation using Fe3-xMnxO4-MKSF catalyst in heterogeneous fenton-like reaction via response surface methodology

Amirah Annasuha Azmi, Rasyidah Alrozi, Nor Aida Zubir, Mohamad Anuar Kamaruddin

Development of Regression Models for Predicting Water Quality Index Based on Dissolved Oxygen for River Pollution Assessment

Wan Mohamad Haziq Wan Roselan, Muhamad Irfan Ahmad Suhkri, Mohamad Faizal Abd Rahman, Moheddin Usodan Sumagayan, Mohd Suhaimi Sulaiman

Prevention of browning during the saccharification of juicy peach syrup and storage of peach wine

Yuxin Liu, Fangfang He, Jiandi Zhou, Lingkang Chen, Guochang Sun, Jian Sun, Xueyuan Han

The role of xerogel in immobilising carbon quantum dots derived from oil palm mesocarp fibre: A potential adsorbent for CO2 capture

Aimi Solihah Zaul Kapri, Norhusna Mohamad Nor

Influence of iron doping on the morphological and compositional properties of zirconia foil as photocatalyst

Nor Aimi Abdul Wahab, Adhwa Izzati Md Taib, Nabilah Yasmin Shamsol Afandi, Norain Isa, Nurulhuda Bashirom, Mustaffa Ali Azhar Taib, Zainovia Lockman

IoT-Based intelligent system for headwater phenomenon detection and alerts using ESP32

Rozan Boudville, Afif Luqmanulhakim, Wan Izzat Hakimi, Muhammad Adly Hisyam, Nur Raihah

Assessing rainfall trends and variability in a climate change

Muhammad Fahmi Muhammad Iskandar, Anas Ibrahim , Zul Azmi Mohtar, Muhammad Faizal Pakir Mohamed Latiff, Nasehir Khan E.M Yahaya

New approach to minimise surface roughness in Polytetrafluoroethylene (PTFE) through robotic spindle speed control

Wan Nor Shela Ezwane Wan Jusoh , Shukri Zakaria, Mohamad Irwan Yahaya, Mahamad Hisyam Mahamad Basri, Razak Daud, Noor Iswadi Ismail