Universiti Malaysia Pahang

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    33262 research outputs found

    UMPSA Universiti gemilang cipta, cinta, citra sejarah tercipta

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    Universiti Malaysia Pahang (UMP) ataupun boleh kita banggakan dengan penjenamaan nama baharu universiti ini yang juga kini dikenali sebagai Universiti Malaysia Pahang Al-Sultan Abdullah (UMPSA).1 Terdahulu, UMPSA yang dikenali sebagai UMP ialah universiti yang berasaskan teknikal2 yang menawarkan para pelajar lepasan Sijil Pelajaran Malaysia (SPM) dan pelajar lepasan diploma dan setaraf dengannya untuk meneruskan pengajian mereka ke bidang kemahiran teknikal yang berteraskan kejuruteraan dan juga teknologi yang beraras tinggi

    Cymbopogon nardus Leaf Ash as an Alternative Material for Enhancing Concrete Strength

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    Numerous waste materials containing calcium and silica have been adopted as partial cement substitutes. This practice is intended to reduce the environmental impact of cement production, specifically in terms of carbon dioxide (CO2) emissions. However, plantation waste, specifically waste from Cymbopogon nardus leaf, has not been completely exploited. The presence of silica in C. nardus leaf ash (CNLA) presents an opportunity to partially replace cement in concrete. The purpose of this study is to determine the effect of substituting CNLA at 0%, 5%, 10%, and 15% as a partial replacement for cement on the compressive and tensile strengths of concrete after 28 days of curing. For testing purposes, 15 cm × 30 cm cylindrical concrete specimens were formed. The investigation was conducted following ACI 211.1-91 (American Concrete Institute) and ASTM (American Society for Testing and Materials) standards. The required compressive strength for the concrete was 17.00 MPa. The results of the study indicate that the addition of CNLA to cement at concentrations of 0%, 5%, 10%, and 15% resulted in compressive strengths of 21.56, 21.12, 22.58, and 17.88 MPa, respectively. The results of the split tensile strength test were 2.43, 2.72, 2.87, and 3.18 MPa, respectively. According to the findings of this study, increasing the amount of CNLA in cement by 10% can increase the compressive and tensile strengths of concrete. In addition, as the percentage of CNLA exceeds 10%, the workability of the concrete decreases, posing challenges in attaining the targeted strength of the concrete

    UMPSA, SIT perkukuh kerjasama strategik dalam akademik, penyelidikan dan pengantarabangsaan

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    PEKAN, 18 Januari 2024 – Universiti Malaysia Pahang Al-Sultan Abdullah (UMPSA) telah mengukuhkan hubungan bilateral dan kolaborasi strategik akademik dan penyelidikan bersama Shibaura Institute of Technology (SIT), Jepun melalui pemeteraian Memorandum Persefahaman (MoU)

    Evaluating the Performance of a Visual Support System for Driving Assistance using a Deep Learning Algorithm

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    The issue of road accidents endangering human life has become a global concern due to the rise in traffic volumes. This article presents the evaluation of an object detection model for University of Malaysia Pahang (UMP) roadside conditions, focusing on the detection of vehicles, motorcycles, and traffic lamps. The dataset consists of the driving distance from Hospital Pekan to the University of Malaysia Pahang. Around one thousand images were selected in Roboflow for the train dataset. The model utilises the YOLO V8 deep learning algorithm in the Google Colab environment and is trained using a custom dataset managed by the Roboflow dataset manager. The dataset comprises a diverse set of training and validation images, capturing the unique characteristics of Malaysian roads. The train model's performance was assessed using the F1 score, precision, and recall, with results of 71%, 88.2%, and 84%, respectively. A comprehensive comparison with validation results has shown the efficacy of the proposed model in accurately detecting vehicles, motorcycles, and traffic lamps in real-world Malaysian road scenarios. This study contributes to the improvement of intelligent transportation systems and road safety in Malaysia

    Mohamad Samsulsairi bina empayar Engineer Tako

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    GAMBANG, 24 Januari 2024 - Graduan holistik, berciri keusahawanan dan seimbang merupakan merupakan salah satu elemen lonjakan Pelan Pembangunan Pendidikan Malaysia 2015-2025 (Pendidikan Tinggi)

    Evaluation of biofuel from the torrefaction of Malaysian food waste

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    The alarming issues related to the depletion of conventional fossil-based fuel resources have sparked interest in the search for alternative resources. Being a developing country facing tremendous growth, Malaysia is generating large amounts of food waste (FW). In this paper, an investigation of the potential of FW conversion to solid, coal-like fuel is carried out through torrefaction. The torrefaction process was carried out at temperatures between 260 and 320 Β°C and residence times of 15 to 45 min. The results showed that a higher torrefaction temperature leads to an increase in mass loss of the initial solid FW, which is also observed with increasing residence time. The loss of solid mass, nevertheless, increased the higher heating value (HHV) of the torrefied FW. A significant improvement was also observed in the volatile matter (VM) and moisture content (MC) of torrefied FW, which both decreased, while the carbon (C) content was increased. This suggests the improvement in the fuel properties of FW and its potential as a renewable energy source

    Mixed Convection Boundary Layer Flow over a Horizontal Circular Cylinder in AL2O3-Ag/Water Hybrid Nanofluid with Viscous Dissipation

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    This paper investigated the mathematical modelling for mixed convection boundary layer flow over a horizontal circular cylinder in hybrid nanofluid with viscous dissipation. The transformed partial differential equations (PDEs) are numerically solved using an implicit finite-difference approach known as the Keller-box method. The numerical solutions for the reduced Nusselt number, , local skin friction coefficient, , temperature profile, and velocity profiles are found and graphically presented in detail. Effects of the Eckert number, Richardson number and nanoparticle volume fraction are all examined and explained. It is found that the increase of volume fraction of nano material in nanofluid has increased the value of skin friction coefficient. The low density of nano oxides such as alumina in hybrid nanofluids also contribute to reduce friction between fluid and body surface. Based on numerical analysis, the combination of nanoparticles in the form of hybrid nanofluid may reduce skin friction phenomena while sustaining heat transfer characteristics comparable to nanofluid. The results in this paper are original and will assist researchers working in the field of boundary layer flow. It can also be utilised as a reference in experimental studies to reduce operating costs

    Overlapping sustainable construction indicators for construction organisations in Zimbabwe

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    Purpose: Sustainable construction deficits are common in developing economies, and resolutions are constrained by the failure to prioritise the plethora of available indicators. This study aims to report on overlapping indicators for benchmarking sustainable construction for construction organisations. Design/methodology/approach: Online survey data were collected from construction professionals, academics and senior managers in government bodies. Pearson chi-squared tests and overlapping analysis were used to determine significant indicators. Kruskal–Wallis tests were used to determine statistically significant differences among the dimensions. Findings: Overlapping analysis determined indicators significant for economic, environmental and social performance. Environmental protection and reporting (pollution and emissions) were significant for all three performance dimensions. The most significant indicators are economic performance (adequate competence of key project staff), environmental performance (environmental protection and reporting – pollution and emissions) and social performance (adequate sustainability expenditure by construction organisations). Significant differences due to dimensions existed for adequate competence of key project staff, sustainable construction and eco-design, adequate governance and organisational excellence of construction projects and satisfactory workers’ morale. Research limitations/implications: Determining overlapping indicators enables prioritised implementation that ensures sustainable construction. Excluding construction workers was a significant limitation for a holistic interrogation. Originality/value: To the best of the authors’ knowledge, this is the first study to determine overlapping indicators for sustainable construction performance in Zimbabwe

    Magnetic characteristics adjustment through rare-earth lanthanum substitution in mechanically alloyed yttrium iron garnet nanoparticles

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    Yttrium iron garnet (YIG) is a very important ferrimagnetic ceramic and widely used in high frequency magneto-optical applications due to its high saturation magnetisation and low magnetic loss up to several GHz. Magnetic properties of YIG are strongly dependent on the processing technique, in which small amount of dopants can largely affect its properties. In this study, the effect of various lanthanum (La) content on structural, microstructural and magnetic characteristics of YIG was reported. The nanosized powders of La-subtituted YIG with La content of 0.0 to 0.5 were synthesised using mechanical alloying technique for 6 h followed by sintering at 1400Β°C. The physical characteristics of the samples were analysed using XRD, FTIR, TEM and SEM, meanwhile the magnetic and thermomagnetic characteristics of the samples were measured using VSM and LCR-meter respectively. The particle size of as-milled samples showed an increment from 38 to 53 nm with increasing La content and the XRD patterns of the samples showed evidently a highly crystalline and full phase YIG ferrite, regardless of its La content. While the microstructure of the samples barely remains consistent for all La content, the saturation magnetisation of the samples showed reduction with increasing La content. This is due to the magnetic dilution caused by La in overall superexchange interaction in magnetic moments of YIG, which is attributed to the paramagnetic nature of La rare earth ions at room temperature

    Review of MXenes as a component in smart textiles and an adsorbent for textile wastewater remediation

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    Two-dimensional (2D) MXenes have emerged as an archetypical layered material combining the properties of an organic-inorganic hybrid offering materials sustainability for a range of applications. Their surface functional groups and the associated chemical properties' tailorability through functionalizing MXenes with other materials as well as hydrophilicity and high conductivity enable them to be the best successor for various applications in textile industries, especially in the advancement of smart textiles and remediation of textile wastewater. MXene-based textile composite performs superb smartness in high-performance wearables as well as in the reduction of textile dyes from wastewater. This article critically reviews the significance of MXenes in two sectors of the textile industry. Firstly, we review the improvement of textile raw materials such as fiber, yarn, and fabric by using MXene as electrodes in supercapacitors, pressure sensors. Secondly, we review advancements in the removal of dyes from textile wastewater utilizing MXene as an absorbent by the adsorption process. MXene-based textiles demonstrated superior strength through the strong bonding between MXene and textile structures as well as the treatment of adsorbate by adsorbent (MXene in the adsorption process). We identify critical gaps for further research to enable their real-life applications

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