eJournal Jabatan Pendidikan Politeknik dan Kolej Komuniti
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Extended Theory of Planned Behaviour: Electrical Energy Saving at Workplace
Get PDFThe use of electricity is one of the main sources in a path to create a conducive environment for learning and residential among students. A comprehensive management of electricity consumption is needed in order to address the issue of increasing energy consumption and a rising rate for the electricity bill in the commercial sector. Following the issues presented, this study was conducted to identify the behaviour of KKKL residents towards the use of electricity by using the Extended Theory of Planned Behaviour (ETPB) as a framework. Theneeded data were then collected through set of questionnaires that had been developed based on the Theory of Planned Behaviour (TPB). A total of 134 KKKL residents has been selected as respondents for this study. The researcher had opted to use random sampling method in the process of selecting respondents for this study and the data collected were then analyzed using Statistical Package for Social Science (SPSS) software version 23.0. From the descriptive
analysis, it is found that the behaviour of the KKKL population as a whole was at a high level with a total mean of 4.51. It also shows that there is a relationship between behaviour and energy saving intention with the recorded value of r=0.784 and p<0.05. In the meantime, based on the regression analysis, it is found that subjective norms do not show any effect on energy saving intention while Attitude towards Energy Saving, Perceived Behaviour Control, Personal Moral Norm and Descriptive Norm showed an effect on energy saving intention with each beta value recorded were β = .156, p < .05; β = .232, p < .05; β = .168, p < .05 and β =
.476, p < .05. This finding further illustrates that the increase in electricity bills is not due to the behavioural factors of the KKKL population based on the mean score obtained for the overall behaviour construct. This may be due to other factors that are not being addressed in this study such as the use of the building materials which had a potential to contribute in the increase of electricity consumption, such as the use of materials that required high heat storage and the use of obsolete and impractical electrical appliances
The Strategic Effectiveness on Implementation of Solid Waste Management at Kuala Lumpur International Airport
Get PDFWaste management can be defined as the application of techniques to assure a systematic execution of the numerous functions of collection, transport, processing, treatment, and disposal of waste. The effectiveness of solid waste management depends on the organization’s strategic capabilities. The purpose of this study is to investigate factors that influence the strategic effectiveness of solid waste management at the International Airport located in state of Selangor involving Kuala Lumpur International Airport (KLIA) and Kuala Lumpur International Airport 2 (KLIA2) to improve solid waste management. The researcher choose a qualitative and quantitative approach or mixed method in this research is an abductive approach used to achieve goal in this study. The findings that researchers have learned are wastivity, waste management technologies, economic investment, execution of waste management, research and development, governmental directives, awareness and environmental pollution are the factors affecting effectiveness of strategic solid waste management. This study may indirectly reflect the current practices on how KLIA and KLIA 2 management handling the waste management and determining the key factor of success in solid waste management strategic during the implementation period. The result of this study can help to improve the lack of strategic management aspect in solid waste management and assist the company towards continuous improvement to achieve sustainable waste management
Penerokaan Masalah Dalam Amalan Pengkomersialan di Kolej Komuniti Masjid Tanah: Satu Kajian Kes
Get PDFCommercialization of new innovations and consultation services at higher learning institutions including polytechnics and community colleges is currently become important and sensational. However, the commercialization track record among academic and innovative researchers in polytechnics and community Colleges is not very encouraging. Due to this, many innovations produced by community and polytechnic colleges were unable to be properly promoted to the public. Therefore, a study was conducted to identify the commercialization problems faced by Community Colleges especially in Masjid Tanah Community College (KKMT) as a guide to find the solution towards the problem. In order to fulfill the research objectives, various factors and issues were examined to identify how it affects the commercialization procedures of these innovations and services. The study is a qualitative type of research in the form of multiple case studies. To investigate the factors and issues related to this problem, an in-depth interview procedure has been carried out. Respondents selected for the study are five KKMT lecturers who were involved in the service consultation process with external parties in the field of landscaping, electrical, Internet of Thing (IoT) and social science. Researchers applied content analysis approach to analyze the data derived from a semi-structured interview from the respondents. The results reveals that problems faced by the people of KKMT for commercialization are lack of financial, incentive and management support, no expertise in managing commercialization and unclear policies from upper administration. The study also outlines some implications and recommendations for the improvement of the commercialization at Community college
Keberkesanan Medium Campuran SAP (Superabsorbent polymer) Dalam Pertumbuhan Sawi Pakchoy (Brassica rapa subsp.chinensis)
Get PDFSuper Absorbent Polymers (SAP) are hygroscopic materials, for example white sugar, which are widely used in disposable diapers and other applications including for agricultural use. The combination of organic fertilizers with SAP solutions enhance nutrient content to be received by the plants through the soil. Therefore, this study was conducted to investigate the growth rate of mustard pakchoy using four media mixtures with different combination of SAP and organic solvent (gram), which are S1 SAP + (0gram), S2 SAP + (200gram), S3 SAP + (400gram), and S4 SAP + (800gram). Watering was done 2 times a day a week, which was on the morning at 8.30 am and on the evening at 6.00 pm. Hand sprayer was used as a tool for watering the plants in each polybag. Each plant watered with the same amount of water. Data collection for the quantity of leaves and height for each plant were taken once a week for four weeks after the seedlings were transferred to polybags, while the weight of mustards was taken in the fourth week. In conclusion, this study has found that samples with the highest SAP content and organic fertilizer, which is S4 (SAP + Organic Solvent 800gram), has shown the best growth rate. It is also assured to conclude that these samples contain the highest nutrient content when it shows the best growth and development when compared to other 3 sample
Relationship Between Financial Literacy and Financial Practices on Financial Satisfaction: Exploring Gender Differences
Get PDFThe current economic conditions have affected financial situation of individuals, particularly younger generation. This paper aims to investigate the relationship between financial literacy, financial practices and financial satisfaction; and also to explore gender differences to all variables study. For this purpose, a questionnaire was designed and distributed using random sampling among 161 respondents aged below 30 years who are working in Putrajaya as a government servant. This paper consists three variables which is financial literacy and financial practices as an independent variable, where financial satisfaction as dependent variable. From multiple regression result, it shows that financial literacy and financial practices have a positive relationship with financial satisfaction. However, it is found that financial practices are more influential on financial satisfaction than the effects of financial literacy. From the Independent T-Test, the results show a significant different in financial literacy and financial satisfaction which suggest that males are more financially literate and satisfied with their financial condition than females. As a result, this finding gives the implication to the concern parties such as Credit Counselling and Debt Management Agency (AKPK) that financial literacy and financial practices as an important factor that will increase the financial satisfaction. This information is useful in designing the financial program that can enhance the financial satisfaction
Automatic Pump Down Air Conditioning System for Refrigerant R22 Split Unit
Get PDFPump down is a process of pumping and storing refrigerant from the air conditioning system into an outdoor unit using a solenoid valve in the liquid line. The conventional method would be to pump down the refrigerant manually before conducting maintenance to the air conditioning system. Industrial refrigeration units use massive amounts of refrigerants. Without a pump down process, the liquid refrigerant would be sucked out from the evaporator and enter the compressor. Compressors do not pump liquid therefore the compressor would be destroyed if a large amount of liquid is found in the compressorhe result shows that 99.98% refrigerant were able to recovered. Hence, this project focused on developing an automatic pump down system. For the purpose of this study, an air conditioning system with 1 horse power (hp) capacity was mounted with two sets of pressure switch and solenoid valve. Once the desired temperature is reached, the thermostat will open and the valve will close. The compressor will then continue to run and evacuate any refrigerant from the solenoid valve’s outlet, including the compressor. The system will continue to pump the remaining refrigerant into the outdoor unit. The whole system will completely shut off after all refrigerants were safely kept inside the outdoor unit. Based on the findings, the process of reducing and controlling refrigerants leakage from the air conditioning system is more efficient and effective when applying pressure of 110 psi
Dry Drilling: Feasibility of Aluminium Alloy Stack Material in Aerospace Structures
Get PDFThe aerospace industry drills millions of holes annually on stacked airframe structures. Unfortunately, as the drill breaks through cutting fluid is sprayed on the machining environment and workshop. The scientific challenge is to develop a viable and cost effective drilling process that can operate without cutting fluids. Development of dry drilling processes will enable the aerospace industry to substantial improve the machining environment and addressing the health and safety issues for their workers. The main purposes of this study is to determine the effectiveness of coating capability, effect of machining parameters and influence of swapping the position of stacked materials on the cutting performance and quality of holes drilled. Successful baseline experiments employing various cutting parameters and tool coating were conducted and showed promising results. Trials indicated CVD diamond-coated drills produce remarkable higher thrust compared to other coatings. However, regardless of coating used, most severe deviations of diameters were captured at lower feed and speed. In term of surface roughness, results have pointed out that Standard MoST seem to be the promising coatings in reducing the hole surface roughness
Mechanical Properties of Treated Powder Bamboo/Short E- Glass/Polypropylene Hybrid Composite
Get PDFNatural fiber reinforced composites are necessary in demand to growth use of polymer composite technology. The key goal of this research to exploits bamboo species (Gigantochloa Scortechinii), which was collected from the Melaka, Malaysia. The treated bamboo fiber were sieve average to 500 μm and divided into 10 composition ratio through 6 mm short (EG) E-Glass fiber and(PP) polypropylene. The hybrid composites were processed in internal mixer and hot-press with 50 to 95 percentage polypropylene ratio and were characterized in term of mechanical properties. The behaviour of impact strength, tensile strength, and flexural strength improved in 2.5 % (TB) treated bamboo however opposite for thehardness value, tensile modulus, and flexural modulus with 25 % (TB) treated bamboo composition respectively. The morphology (SEM) scanning electron microscopy results support the mechanical properties which showed the interaction between PP/EG/TB with the selected composition. Overall, the treated bamboo/E-Glass/Polypropylene hybrid composites indirectly can reduce the use of polypropylene in the production of products
Modelling Titanium Machined Workpiece Qualities Using Fuzzy Logic
Get PDFTitanium is an expensive material with superior qualities and preferred by manufacturing industries. The industries must consider machining operations and parameters selection to minimise the material waste and machining failure. Material waste related directly to machining operation used. Thus, EDM Die Sinking is the selected machining operation because of its extensive in reducing material waste. Moreover, machining failure which effected to machined workpiece qualities are associated with machining parameters. Furthermore, determining the machining parameter practically made by experienced machinist and is made by trial and error manner. Therefore, this paper aims to put forward Titanium workpiece qualities in relation to EDM Die Sinking machining parameters relation with Fuzzy Logic model. For comparison, ANN will also model the relation. The models development begins with data selection, modification, and composition. Then the selected models are designed with their features. Fuzzy Logic model features include selection of membership functions, feature range points for input-output, and fuzzy logic rules. In addition, for Neural Network model, Feed Forward Backpropagation Network is applied. Afterward, the network architecture and functions used is decided. Finally, the estimation performance of the models with various model designs are compared. Fuzzy Logic and ANN models best performance in estimating Surface Roughness is similar i.e. 83.3% detection rate. Fuzzy Logic with 97.2% detection rate is the best dimensional accuracy estimation performance. And the best dimensional accuracy estimation performance for ANN is 91.7%. The best performance model is substantial to the related industries because the model can reduce material waste and machining failure. Besides, the model simplified the parameters estimation and easy to new machinist
Manual Handling Process in IBS Precast Concrete Panel Site Construction: A Case Study
Get PDFPrecast concrete panel is one of the Industrial Building System (IBS) components which is used in the modern construction industry especially in urban areas. Implementation of precast concrete panel in site creates an issue as it uses manual handling process during the construction. This study focuses in site construction using a concrete panel with 3300mm x 600mm size and compressive strength 40MPa. Consequently, issues of Musculoskeletal Disorders (MSDs) among those workers arises due to repetition of IBS workers lifting the concrete panel manually. This problem automatically reduces workers productive and giving strain for the workers when they have to spend more money and time for rehabilitation process. Aim for this is to investigate and analyze the recommended weight limit (RWL) and lifting index (LI) for those workers during the manual handling process using those precast concrete panel. The method used along this study includes; interview session, NIOSH lifting index calculation and recommended work limit calculation. The result gained at the end of this study lead to (MSDs) problem. The Recommended Weight Limit (RWL) shows the maximum or the limit of the weight that can be carried by an individual in completing the task while the Lifting Index (LI) interpret performs significant level of the risk of MSDs. This project come out with the recommend of RWL for the workers and lifting index figure thus increase the awareness among the workers and employers about the (MSDs) issues