Universiti Teknikal Malaysia Melaka: UTeM Open Journal System
Not a member yet
2735 research outputs found
Sort by
WEB ACCESSIBILITY COMPLIANCE TO WCAG 2.0 STANDARD: A CASE OF A MALAYSIAN PUBLIC UNIVERSITY
Full text linkMost universities now communicate, exchange pertinent information, and facilitate transactions among their stakeholders through their websites. Website accessibility is, therefore, essential to ensure equal access to information from the institution regardless of their physical limitations and other potential restrictions. Based on ACHECKER and WAVE, the objective was to present the features of non-compliance to WCAG 2.0 standard and ways to overcome for a Malaysian public university homepage. The study found a low degree of compliance with the WCAG 2.0, respectively. Parsing, labels or instruction, headings and labels, link purpose, resize text and information and relationship are some of the aspects that require rapid attention. It is possible to further improve issues with navigation, adaptability, input assistance, compatibility, empty links, and empty headings. An expert’s insights indicated that without proper monitoring from the higher authority of the government body like MAMPU, the web accessibility would remain partially or completely inaccessible to certain sectors of the population. Overall, this study provides insightful information, especially to web designers who can better adhere to the standards when creating their websites. Keywords: ACHECKER, WAVE, a Malaysian public university, WCAG 2.0, web accessibility
MODELLINNG, CONTROL AND EXPERIMENTAL VALIDATION FOR MOTORISED WHEEL SPEED CONTROL
Full text linkThis paper presents the experimental validation of the three-phase motorised wheel (MW) mathematical model. The research which ignited from the lack of validation of MW was started from the simulation that was developed utilizing MATLAB/Simulink software. A speed control-based Proportional-Integral (PI) controller was then implemented to the simulation to verify the effectiveness of the mathematical model. Several simulation tests, namely step, sinewave, and sawtooth function at 10, 20, and 30 km/h, respectively, have been conducted. In order to ensure the reliability of the simulation model, a series of validation tests were performed using the same test method conducted in the simulation. Various parameters, such as speed, distance, current, torque, and voltage, were measured during the tests. The results indicated that the simulation results are able to mimic the trend of experimental data with an acceptable error rate of less than 5%
A STUDY ON THE EFFECT OF THICKNESS AND STACKING SEQUENCE ON THE STIFFNESS OF COMPOSITE LAMINATES UNDER QUASI-STATIC LOADING
Full text linkThe quasi-static loading characteristics of symmetric carbon fibre-reinforced epoxy matrix composites loaded to a peak of 2500 N and then unloaded were evaluated in terms of the characteristics of the response, bending stiffness and energy consumed for lay-up configuration in the families of [0/90/±45]s , [±45/0/90]s and [0/90/0/90]s. The test samples were manufactured measuring 100 x 150 (mm) and during testing they were held firmly with toggle clamps on the support fixture placed on the bed of an instrumented Tinius Olsen universal testing 25ST machine. The macro-mechanical behaviour of laminates with respect to quantities of the laminate extensional and bending stiffness matrices were compared in relation to the experimentally obtained normalized plate bending stiffness; also, the energy absorbed quantities related to the bending stiffness of the different categories of the laminates. The results obtained reveal that the ratios of the extensional stiffness to the bending stiffness elements of the matrices are relevant quantities affecting the load – displacement plot, energy absorbed and the bending stiffness. Also, the increase in the number of surface cross plies in composites is a good approach to increase resistance to major damage for composite structures
DETERMINANTS OF HUMAN CAPITAL FORMATION, INEQUALITY MEASUREMENTS AND ATTAINMENT OF SCALABLE ECONOMIC GROWTH IN NIGERIA
Full text linkABSTRACT Despite the huge abundance of human and capital resource endowments, Nigeria’s rate of economic growth is still low. This is often manifested in the declining gross domestic product (GDP), per capita income, literacy rate, and balance of trade profile of the country. This study, using the descriptive and econometric analytical approaches found out that the GDP had a positive and significant impact on the total national expenditure on healthcare delivery while the mortality rates negatively impacted the total expenditures on healthcare delivery. The fertility rates and family labour supply level also had a negative effect on total national expenditure on education. Marriage rates declined steadily from 10.8 % in 1980 to 7.8% in 2010 and 6.4% in 2020 while the rate of divorce increased steadily. Elderly population (≥ 60 years) were 53.80 % men and 46.20% women (in 2019) and 53.62% men and 46.38% women (in 2020). Employment inequality profile depicted that 86.27% of the federal ministers were males while 84.09% of the senatorial positions were won by the male politicians. In conclusion, all the positive attributes of human capital development indices like qualitative education, skill acquisition, and sound healthcare facilities should be sustained to make Nigeria’s economy buoyant. Keywords: Determinants; economic growth; human capital formation; inequalities; sustainabilit
IMPORTANCE OF IDEOLOGICAL AND POLITICAL EDUCATION ON UNIVERSITY STUDENTS’ PSYCHOLOGICAL CRISIS COPING ABILITY
Full text linkThis paper proposes a conceptual framework for leveraging ideological and political education to enhance the mental crisis coping ability of university students. The primary objective is to integrate ideological and political education in universities to improve student abilities to cope with psychological crises and innovate intervention methods. The study utilized induction and data analysis techniques to define psychological crises and interventions for university students while examining the role of ideological and political education in psychological crisis intervention. Through reflection on the current state of ideological and political education interventions, this paper proposes constructive and feasible pathways and countermeasures for implementation. The results indicate that ideological and political education positively intervenes in psychological crises faced by university students. Therefore, this paper recommends supporting the application of ideological and political education as an essential pillar of mental health education to provide new perspectives and approaches for intervening in psychological crises among university students. Finally, it is essential to value its theoretical foundations and support its integration into mental health intervention strategies in universities. This research contributes to the development of a novel approach to managing psychological crises among university students, which can ultimately promote their well-being and success. Keywords: ideological education; political education; psychological crisis; coping abilit
3D MODELLING OF A RECONDITIONED PISTON OF A SINGLE-CYLINDER FOUR-STROKE DIESEL ENGINE BY USING SOLIDWORKS SOFTWARE
Full text linkThis paper gives the possibility of modelling a reconditioned piston of a single-cylinder four-stroke diesel engine using the ZS1115NM diesel engine specifications. Due to the upsurge of counterfeit spare parts in the market, meeting the original equipment manufacturer (OEM) standards requires a reconditioning process. The reconditioned piston is a thermal barrier coated one with a ceramic material that enables it to withstand high gas combustion temperatures without cracking. A piston converts thermal energy to mechanical energy in an internal combustion engine (ICE). The methodology includes sizing and modelling of the conventional piston, topcoat and bond-coat layers and finally assembling them to get a reconditioned piston using Solidworks Computer-Aided Design (CAD) software. The material chosen for the piston is an aluminium alloy designated as A2618, due majorly to its high coefficient of thermal expansion (CTE) which enables the piston to withstand high thermal stress without cracking or failing. The ceramic material chosen is a 7.5% yttria-stabilized zirconia which is the topcoat with low thermal conductivity and a high coefficient of thermal expansion (CTE) on a bond-coat metallic material called Nickel Chromium Aluminium Cobalt Yttria which are applied by plasma sprayed method on the crown of the substrate. The chosen thickness from the literature of the topcoat layer is 0.35 mm and that of the bond-coat layer is 0.15 mm. Also, from the literature, the major reason for the thermal barrier-coating (TBC) of a diesel engine piston crown using a ceramic material was to improve its performance.
Q-Switched Erbium-Doped Fiber Laser Via Vanadium Pentoxide Polyethylene Glycol Saturable Absorber in a Long Band Region
No full textShort pulse erbium-doped fiber laser in anomalous group delay dispersion has been shown to generate soliton output at 1562.4 nm wavelength with 0.4 nm spectral bandwidth. The Q-switching operation was induced by a vanadium oxide polyethylene glycol (V2O5-PEG) film saturable absorber (SA) for all-fiber ring cavity configuration. The pulsed laser has maximum pulse energy of 3.2 nJ, the shortest pulse width of 4.7µs, and maximum output power of 0.4 mW. These findings show that the fabricated vanadium pentoxide film can be an alternative SA device for generating a pulsed laser
A Review on the Role of Big Data Analytics in the Financial Services Industry
Full text linkThe financial services industry's digital revolution has facilitated the penetration and transformation of advanced analytics, machine learning, artificial intelligence, big data, and the cloud. These technologies are used by large organisations to expedite digital transformation, meet consumer demand, and improve profit and loss. While the majority of organisations hold enormous amounts of useful data, they typically lack the knowledge essential to maximise its value because the data is unstructured or incorrectly recorded inside the organisation. This article discusses the applications of Big Data Analytics in the financial services industry and how they are being employed. Text analytics, audio analytics, and predictive analytics are just a few of the approaches now being used to provide value to financial organisations. This can assist in resolving various critical issues in the field, including market forecasting, fraud detection, credit scoring, real-time targeted marketing, and overall customer experience enhancement
Recent Developments of Cargo Loss-Mitigating Strategies: A Review
No full textCovid-19 has stalled the growth of international seaborne trade to its nadir since the world’s financial crisis of 2008-2009. In light of this, shipping companies, more than ever, have to seek beyond conventional wisdom in devising their master plans to tolerate the adverse implications levied by the pandemic. In this paper, several advancements in the maritime industry, ship-specific and non-ship-specific, formulated by the scientific community over the last two decades are presented. For ship-specific advancements, the guidelines for the following procedures are presented; 1) to establish effective monitoring systems for container ships, 2) to optimize ship-to-ship transfer operations between Liquefied Natural Gas vessels and Floating Storage and Regasification Units, 3) to optimize ethylene gassing-up operation for Liquefied Petroleum Gas vessels, and 4) to minimize volatile organic compounds emission of crude oil tankers. For non-ship-specific advancements, the following technologies are presented; 1) Data-driven Analytics, 2) Independent Automotive Damage Appraisers Intelligent Cargo System, and 3) Blockchain Technology. All these advancements can be leveraged by shipping companies to maximise their profits, particularly during the challenging epoch, by keeping their cargo loss at a minimal level
INVESTIGATION ON CLOSE-LOOP WATER-COOLED PHOTOVOLTAIC MODULE: EFFECT OF WATER VOLUME ON THE TEMPERATURE PROFILE AND PERFORMANCE ENHANCEMENT OF THE MODULE
Full text linkThe volume of water in the water reservoir is one of the most important parameters involved in closed-loop water-cooled photovoltaic (PV) systems. However, there are no studies reported on this parameter. Therefore, in this paper, PV modules with different effective surface areas are cooled using different sets of water volumes in a closed-loop system to study the temperature reduction and performance enhancement of water-cooled PV modules. The experimental result indicated that for the 250-W water-cooled module, different sets of water volumes have a significant effect on the surface temperature reduction of the PV module and its performance compared to the 10-W and 30-W water-cooled modules. Hence, the preliminary data indicates that the volume of water affects the inlet temperature of the water, which subsequently affects the temperature reduction and performance enhancement of the water-cooled module in the closed-loop system. Besides, the inlet temperature of the water is also affected by the effective surface area of the water-cooled module