DSpace Collection: Master ThesesMaster Theseshttp://hdl.handle.net/123456789/14082023-12-19T18:11:22Z2023-12-19T18:11:22ZEvaluation on the local residents’ perception on environmental impacts of coastal tourism development in Teluk batik, Perak, MalaysiaZaidatul Aisyah Bt Zarul Ikhsan, UBishttp://hdl.handle.net/123456789/213982019-03-14T07:35:10Z2019-03-14T00:00:00ZTitle: Evaluation on the local residents’ perception on environmental impacts of coastal tourism development in Teluk batik, Perak, Malaysia
Authors: Zaidatul Aisyah Bt Zarul Ikhsan, UBis
Abstract: Coastal area is identified as an area where there is an interface between law and ocean. Hence, the recent changes in size, composition and distribution on coastal area pertaining to development shall directly affect the surrounding regions due to the changes in land use and land protection. An instant is the Teluk Batik beach, located at the west coast of the state of Perak at about 6.5KM away from the town of Lumut. In this particular beach, there were threats related to erosion and water pollution throughout a stretch of 2 kilometers along the coast, which is due to development of hotels, housing and new industry initiated by the state Government of Perak. It is important to note that the disposal of development effluents into a marine environment is quite alarming, in which this research had identified a list of potential a list of potential negative impacts that can be associated with the discharge of outfall. The impacts will largely experienced by the marine habitats and the physical properties of the seawater itself.in solution, a questionnaire survey was conducted as part of this research study to collect some information from the teluk batik residents, where a total of 201 questionnaires were distributed to the local population. Based on the detailed observation of the water samples and erosion specimens, interview were conducted with the representative from Department of Environment, Municipal of Manjung, and Department of Irrigation and Drainage. The analyses conducted on the perception of local residents towards the coastal development actually revealed that large-scale (Mean of 3.85) of the residents agreed that the development had negatively affected the flora and fauna in Teluk Batik. Besides that, the findings also concluded that the water quality of Teluk Batik is unsafe for body contact, because the E.coli rate had exceeded the threshold limit for safe zone. Furthermore, the erosion rate at Teluk Batik coastal area was classified as category 2, which will directly influence the public property and/or land valuation within the period of 5 to 10 years, unless an effective solution is immediately implement. In ultimatum, this study had generated a proposal or guidelines for Teluk Batik to achieve a sustainable environment during the development phase.2019-03-14T00:00:00ZTo compare the prefrontal cortex activation between normal cognitive aging, amnestic mild cognitive impairment, and early Alzheimer’s disease using functional near-infrared spectroscopy (FNIRS) in English-Speaking MalaysianKah Hui Yaphttp://hdl.handle.net/123456789/213862019-03-12T06:51:11Z2019-03-12T00:00:00ZTitle: To compare the prefrontal cortex activation between normal cognitive aging, amnestic mild cognitive impairment, and early Alzheimer’s disease using functional near-infrared spectroscopy (FNIRS) in English-Speaking Malaysian
Authors: Kah Hui Yap
Abstract: Background: Alzheimer’s disease (AD) is a chronic progressive neurodegenerative brain that can occur in middle or old age. The current assessment tools are time-consuming, proneness to subjectivity, and the scores can be influenced by education, socio-economics status and gender. The advantages of functional near-infrared spectroscopy (fNIRS) over other neuroimaging modality as well as its sensitivity in measuring haemodynamic changes represent a promising approach in this study.
Methods: the prefrontal cortex of healthy controls (HC), amnestic mild cognitive impairment (aMCI) and early (AD) was studied. Each HC was individually matched by age and gender without personal or family history of psychiatric disorders. Categorical verbal fluency task (VFT) was used as activation task in conjunction to fNRIS.
Results: the HC demonstrated significantly greater number of word in all three categories of VFT, followed by aMCI and early AD; saving for “animal” category between aMCI and early AD. MCI demonstrated greatest level of PFC activation, followed by HC and early AD; significantly greater chances in the level of oxy-Hb was found in aMCI compared to early AD>
Conclusion: Categorical VFT derived in this study may represent an effective activation task to be in conjunction with fNRIS. The numbers of activated probes may represent a better indicator for differentiation between the three groups, as compared to the level of oxy-Hb. The activation level of right pfc is crucial in distinguish between MCI and early AD. Avenues for future studies included: larger sample size, exclusion of secondary comorbidities, and investigation into other brains regions.2019-03-12T00:00:00Z: Investigation on small propeller selection for electrically-powered Unmanned Aerial Vehicle in real life application.Ir.HJ. Shamil bin Abu Hassanhttp://hdl.handle.net/123456789/213852019-03-12T03:16:59Z2019-03-12T00:00:00ZTitle: : Investigation on small propeller selection for electrically-powered Unmanned Aerial Vehicle in real life application.
Authors: Ir.HJ. Shamil bin Abu Hassan
Abstract: Propeller has long been studied in detail as it was propulsion method for aircraft of pioneering days of aviation area. With the advent development to push aircraft to fly faster and higher envelope, the move of propeller to jet engine seems inevitable, thus putting the development of propeller to a complete halt. The re-emergence of propeller aircraft especially in the small electric propulsion Unmanned Arial Vehicle (UAV) has created a renewed interest of small propeller; thus the understanding of small scale propeller. The small propeller operates in low Reynolds Number regime as compares to its counterpart, the large propeller. Couple with the known fact that the aerodynamics performance tends to degrade at low Reynolds Number, scaling down of the data from the large propeller to the small-scale propeller does not provide the correct aerodynamics profile of the small propeller. Therefore, the knowledge gathered in the large propellers cannot be empirically duplicated to the small propellers. By investigation the effect of propeller rotational speed, diameter and pitch, this study has manage to develop an initiative which is called SHAIS protocol to enable designers to determine the most suited propeller configuration for cruising mode based on the specification of the Unmanned Aerial Vehicle such as range, maximum take-off weight and mission time. This real-life parametric relationship focuses on the parametric investigation of small propellers in the range of 9” to 11” deemed suitable for small Unmanned Aerial Vehicle. The result of the study has found that the propeller configuration having a diameter to pitch (D/P) ratio of between 1.3 to 1.4 will yield the maximum efficiency during cruising for small electric powered Unmanned Aerial Vehicle. The above result also tested, compared and verified in the real life flight test using a small UAV as test bed where configured propeller managed to exhibit better propeller efficiency during cruising.2019-03-12T00:00:00ZEnhanced Non Linear Image filtering technique for noise removal in digital imageMuhammad Syafiq AlzaUBishttp://hdl.handle.net/123456789/213832019-03-12T03:05:53Z2019-03-12T00:00:00ZTitle: Enhanced Non Linear Image filtering technique for noise removal in digital image
Authors: Muhammad Syafiq Alza; UBis
Abstract: One of the main challenges in image processing is to remove noise in digital image. Noise removal is vital because it caused problem such as degradation of the image quality and loss crucial information in image. Most common noise in vision system image is salt and pepper noise which cause by illumination and sensor temperature. Therefore, image filtering technique has been introduce to overcome these problem. Nonlinear image filtering technique has proven to have better efficiency than the linear technique which tend to blur the image. Median filter technique is one of the well-known nonlinear technique which has been widely used to remove salt and pepper noise. However, this technique only work well with low density salt and pepper noise. Therefore this research is aimed to improve image filtering technique based on median filter technique and decision based on algorithm for salt and pepper noise removal. The improvement of image filtering technique to remove multi-type noise is also addressed by using an enhanced image filtering technique that is develop based on hybrid median filter. The proposed filter are tested on three different images of lead frame, fruit, and Lena images. Their performance are then compared to median filter, Hybrid median filter, Hybrid sigma filter, Adaptive median filter and ben filter technique based on mean square error, structural similarity index and computational time taken. The result show that improved decision based algorithm can efficiently remove salt and pepper noise while enhanced median filter has the lowest computational time. Finding for multi-type noise also indicate that enhanced hybrid median filter is able to provide a good result in structural similarity index analysis.2019-03-12T00:00:00Z