Open Journal System Universiti Malaysia Kelantan
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Development of TIG MIG Hybrid Welding Process: A Brief Review
No full textThe purpose of this article is to review the TIG MIG hybrid welding process, which benefits from the advantages of conventional MIG welding and TIG welding. The review focuses more on the studies related to the concepts of each welding process, its advantages and disadvantages, and some applications in the industry. The TIG MIG hybrid welding is a new method that is less popular than the conventional welding process. Thus, fewer experimental studies have been conducted on the process. Since the TIG MIG hybrid welding is promising a better welding process and is potent to improve the welding process with a combination of advantages of both conventional MIG and TIG welding, hence more work needs to be done on the TIG MIG hybrid welding research study to provide more valuable information that is lacking so that it could be applied to the industry
Advancing Agricultural Sustainability: Smart Monitoring of Oil Palm Seedlings Through Innovative Image Processing Techniques
No full textGood oil palm seedlings planted in Malaysia can enhance the nursery area, the economy, and rural employment. Nitrogen (N), potassium (K), \and magnesium (Mg) deficiencies in oil palm seedlings could have an adverse effect on growth and seedling quality. In contrast, excess fertiliser in oil palm seedlings could reduce macronutrients and soil organic matter levels. Moreover, various diseases appear on the oil palm seedling leaves resulting from nutrient deficiencies. Oil palm seedlings with nutrient deficiencies were more susceptible to pathogens and diseases than healthy oil palm seedlings. Thus, image processing made it possible to quickly and accurately control oil palm seedlings\u27 growth and avoid diseases. In this research study, image processing was proposed to classify nutrient deficiencies in oil palm seedling leaves subjected to the three different fertiliser rates. The dataset for this research study was collected from a nursery and consisted of 868 images classified into four classes (Healthy, Nitrogen, Potassium and Magnesium). According to the experiment\u27s findings, the Xception model achieved the highest percentage of classification accuracy, 98.60%, within a short time. It can be concluded that the proposed implementation of image processing for the classification of nutrient deficiencies in oil palm seedling leaves was effective. However, more datasets could be added in the future to achieve a better balance and enhance classification performance
Advancements and Challenges in Wire Arc Additive Manufacturing – A Review
No full textWire arc additive manufacturing (WAAM) is a groundbreaking advancement in 3D metal printing, enabling efficient and cost-effective production of large, complex components using gas tungsten arc welding (GTAW) and gas metal arc welding (GMAW). Suitable for metals like stainless steel, aluminium, and titanium alloys, WAAM involves layer-by-layer deposition of molten metal using an electric arc to melt wire feedstock. Despite its benefits, WAAM faces challenges with thermal cycles and microstructural inconsistencies, affecting component strength and ductility. Recent studies focus on microstructural analysis and mechanical properties, revealing varied microstructures due to distinct heat cycles. Research indicates consistent hardness across WAAM-fabricated components, with variations based on microstructural constituents. Optimizing the WAAM process involves understanding these characteristics and refining welding parameters. Advances in WAAM technology promise significant improvements in manufacturing efficiency, cost-effectiveness, and component quality across various industries
A Review on Microwave Processing Technique in the Synthesis of CaCu3Ti4O12
No full textMicrowave heating has a high potential technique to be used as an effective substitute for traditional furnace heating techniques in today\u27s ceramic industries, including the synthesis of promising very high dielectric materials with relative permittivity, er = 105 of CaCu3Ti4O12 (CCTO). The microwave processing approach employs microwave radiation to heat materials more efficiently and uniformly to promote uniform densification. Hence, this approach improved the material’s characteristics tremendously compared to the traditional furnace. As microwave heating lowers the reaction times, it has the potential to save both money and energy compared to conventional heating techniques. In CCTO processing, microwave energy was commonly used to replace the heating technique in the calcination stage, sintering stage, or both. This review delves into the historical development and advancements in microwave processing methods within ceramic manufacturing, particularly focusing on CCTO electroceramics. The aim is to assess the viability of microwave processing as a complete substitute for conventional furnace heating techniques in the production of CCTO
Outside Front Cover - Journal name, Cover image, Volume issue details, ISSN, Copyright, Preface, Editorial Board, Acknowledgement for Reviewers, Table of Contents
No full textConsumers Purchase Intention Towards Organic Beauty Products Among Women in Malaysia
No full textThe objective of this research is to investigate the determinants of consumer purchase intention towards organic beauty products by examining the influence of green ads, trust, attitude, and green knowledge. Using a quantitative method this study employs an online questionnaire survey of women in Malaysia. 384 data had been collected using purposive sampling and analyzed using the SPSS 28 version. The results showed that there were significant positive correlations between green ads, trust, attitude, and green knowledge with consumer purchase intention. The significance of this study is the expansion of knowledge on the factors that lead to women\u27s purchase intention towards organic beauty products. Future research can expand this study by investigating other factors using qualitative methods and different respondents
Analysis Usefulness Quick Response Code Indonesian Standard (QRIS) For Efficiency And Accountability Of MSMEs Financial Statements
No full textThis research examines how MSMEs in LamonganCity perceive the efficiency of QRIS digital payment technology transactions and its impact on their financial statement accountability. The study employs a quantitative approach, utilizing non-probability sampling with a Purposive Sampling method. Participants include all Lamongan-based MSMEs that use QRIS for payments and maintain business records. Data collection involves digital methods and questionnaires, focusing on primary sources. Findings reveal that Perceived Usefulness influences the Accountability of MSME Financial Statements in Lamongan, while Perceived Ease of Use shows no effect. Transaction Efficiency demonstrates a significant positive impact on Financial Statement Accountability. The combined variables of Perceived Usefulness, Perceived Ease of Use, and Transaction Efficiency exhibit a simultaneous, albeit weak, effect on Financial Statement Accountability
Evaluating temperature variation of nutrient solution in Nutrient Film Technique (NFT) cooling system for temperate vegetable
No full textThe production of leafy green vegetables in hydroponic systems within greenhouses has gained global prominence in the fresh vegetable production industry. Hydroponic systems, particularly Nutrient Film Technique (NFT), are highly effective due to their soilless nature and efficient nutrient and water circulation. However, maintaining ideal greenhouse temperatures can be challenging. One strategy to reduce energy costs is to heat or cool the nutrient solution instead of the entire greenhouse environment. By regulating the root zone temperature through nutrient solution management, growers can provide more favourable conditions for temperate leafy greens. These conditions are critical because temperatures above 23°C can inhibit plant growth, while temperatures exceeding 35°C can significantly reduce plant metabolism efficiency. This study investigates how lettuce responds to nutrient solution cooling. Importantly, this research focuses on Malaysia, an equatorial country with a consistently warm and humid climate. In such environments, controlling nutrient solution or air temperature to match the crops\u27 optimal growth requirements is crucial. The study employed Butterhead and Romaine lettuce varieties in a hydroponic NFT system. The EC (Environmental Cooling) treatment involved cooling the nutrient solution, while the RZC (Root Zone Cooling) treatment utilized environmental cooling. The results demonstrated that maintaining a consistent nutrient solution temperature within the range of 14°C to 18°C (as observed in the EC treatment) led to superior plant growth and quality, particularly in the early growth stages. In contrast, the RZC treatment showed temperature fluctuations, causing plant stress and inhibiting growth
Preliminary testing for utilising oil palm empty fruit bunch fibre in home compost making and its usability in planting medium towards growth of bird’s-eye chili (Capsicum annum)
No full textIn this preliminary study, a home-based composting routine utilising waste oil palm empty fruit bunch (OPEFB) fibre, garden and kitchen waste, and home-made effective microorganism (EM) solution was carried out. The purpose of this research was to explore potential waste utilisation practice which can start from home. The 9 compost premix samples prepared with different amounts (7%, 14%, 50%, 100%) of OPEFB fibre displayed varying durations of composting time from 4 to 8 weeks. It was observed that compost containing higher amounts of OPEFB fibre took a longer time to mature. The addition of the EM solution to the compost premix samples aided the decomposition of the OPEFB fibre. The compost sample made of 100% OPEFB fibre took 8 weeks of composting period while its replicate sample which was treated with EM took 7 weeks to compost. The usableness of the home-made compost in a planting medium consisting of soil, compost and cocopeat with a ratio of 3:1:1 was tested to grow bird’s-eye chili seeds. Based on the results, soil treated with compost containing OPEFB fibres showed better results for plant growth compared to soil having no compost and with control compost sample (0% OPEFB fibre). It was also observed that compost treated with EM containing 14% OPEFB fibre and 86% vegetable scraps with an initial C: N ratio of 29.9:1 showed the best result towards the plants growth. Based on this finding, home-made compost utilising OPEFB fibre can be included as part of planting medium to support plant growth
Digital Reading Module at Universitas Muhammadiyah Riau: A Needs Analysis
No full textDeveloping an e-reading module tailored to university students requires a comprehensive understanding of their needs, including their reading habits, preferences, and challenges in the digital environment. This study conducted a needs analysis to inform the development of an e-reading module for university students. The method of this study was quantitative, and the data was collected through a questionnaire. Using purposive sampling, the questionnaire was administered to 134 English Education students at Universitas Muhammadiyah Riau. The questionnaire intended to assess their perceptions of existing materials and identify key challenges in reading comprehension. Results indicated moderate satisfaction with current modules but highlighted significant vocabulary, complex texts, and cultural comprehension difficulties. Students expressed strong interest in interactive, multimedia-rich e-modules. The findings justify developing a tailored e-module to enhance reading skills, emphasizing vocabulary support, cultural context, and interactive features. This study provides insights for creating more effective digital reading materials in English language education. Recommendations include developing more engaging and multimodal learning resources, implementing differentiated materials for various proficiency levels, and incorporating more technology in language instruction. The research highlights the complex interplay of factors affecting student success in English reading comprehension and emphasizes the importance of effectively adapting teaching materials and methods to address these challenges