Penggunaan jenis-jenis penilaian oleh pensyarah dalam pengajaran dan pembelajaran di Jabatan Kejuruteraan Awam, Politeknik Ungku Omar

Penilaian ialah satu sistem atau proses yang meliputi aktiviti-aktiviti mengumpul maklumat tentang st'artegi dan aktiviti pengajaran dan pembelajaran, untuk membuat analisis dan keputusan denagn tujuan mengambil tindakan yang sewajamya seperti merancang aktiviti pengajaran dan pembelajaran selanjutnya dengan cara yang lebih berkesan. Penilaian terdiri daripada empat iaitu pra penempatan, formatif, diognastik dan sumatif. Keempat-empat jenis penilaian ini mempunyai kelebihan dan kelemahan yang tersendiri. Melalui dapatan kajian menunjukkan bahawa pensyarah lelaki lebih banyak menggunakan jenis-jenis penilaian dalam bilik kuliah iaitu min 3.37 berbanding dengan pensyarah perempuan iaitu min 3.28. Selain daripada itu, dapatan kajian juga menunjukkan sebanyak 47 % responden mempunyai pengetahuan tentang penilaian pendidikan jenis objektif, 6 4 % responden mengaplikasikan jenis penilaian kaedah lisan dalam aktiviti pengajaran dan 84 % responden bersetuju bahawa penilaian pendidikan telah dapat meningkatkan mutu diri pensyarah dalam aktiviti pengajaran. Manakala 2.7 % responden tidak bersetuju bahawa pelajar diberi masa yang mencukupi sebelum sesuatu jenis penilaian dilakukan. Sehubungan dengan itu pengkaji mencadangkan supaya pensyarah-pensyarah didedahkan dengan penggunaan jenis-jenis penilaian untuk meningkatkan keupayaan dan kecekapan dalam usaha membina jenis-jenis ujian dengan lebih bermutu. Pensyarah juga digalakkan untuk melakukan jenis-jenis penilaian dalam bilik kuliah. Selain daripada itu, pensyarah juga perlu memastikan pelajar sentiasa bersedia untuk dibuat penilaian. Seterusnya pensyarah perlu mempelbagaikan jenis-jenis penilaian pendidikan dalam aktiviti pengajaran bagi mengesan peringkat penguasaan dan kemajuan pelajar dalam semua bidang yang berkaitan dengan pendidika

Factors contributing building safety and health performance of low cost housing in Malaysia

The implementation of safety and health measures on building should be addressed during their life cycles to improve the occupants’ quality of life. However, information concerning the health and safety performance of buildings is not always readily available. This paper aims to determine and identify the factors contributing to safety and health performance of low cost housing in Malaysia. The research first identified the critical factors through a literature review of current safety and health practices from journals, thesis and articles books in order to interpret the factors from a global perspective. A total of fifty questionnaires were then distributed to relevant respondents such as academician, architects, engineers, building surveyors and property managers. In total, 33 completed questionnaires formed a database for descriptive and ranking analysis. The findings of the study revealed that the reliability of the instruments were greater than 0.80. A preliminary finding concluded three factors that the most dominant building design factors contributing to safety and health performance of low cost housing in Malaysia were structural and finishes integrity, amenities and fire services installation. Meanwhile, it was found that three of the most building management factors were documentation and evaluation, building services and structural and finishes integrity. Collectively, results provide evidence that the instruments are reliable in the Malaysian context. However, a bigger sample would be needed to represent the larger population of construction practitioners in Malaysia

The enhancement of heavy metal removal from polluted river water treatment by integrated carbon-aluminium electrodes using electrochemical method

The heavy metal removal enhancement from polluted river water was investigated using two types of electrodes consist of integrated carbon-aluminium and a conventional aluminium plate electrode at laboratory-scale experiments. In the integrated electrode systems, the aluminium electrode surface was coated with carbon using mixed slurry containing carbon black, polyvinyl acetate and methanol. The electrochemical treatment was conducted on the parameter condition of 90V applied voltage, 3cm of electrode distance and 60 minutes of electrolysis operational time. Surface of both electrodes was investigated for pre and post electrolysis treatment by using SEM-EDX analytical technique. Comparison between both of the electrode configuration exhibits that more metals were accumulated on carbon integrated electrode surfaces for both anode and cathode, and more heavy metals were detected on the cathode. The atomic percentage of metals distributed on the cathode conventional electrode surface consist of Al (94.62%), Zn (1.19%), Mn (0.73%), Fe (2.81%) and Cu (0.64%), while on the anode contained O (12.08%), Al (87.63%) and Zn (0.29%). Meanwhile, cathode surface of integrated electrode was accumulated with more metals; O (75.40%), Al (21.06%), Zn (0.45%), Mn (0.22), Fe (0.29%), Cu (0.84%), Pb (0.47%), Na (0.94%), Cr (0.08%), Ni (0.02%) and Ag (0.22%), while on anode contain Al (3.48%), Fe (0.49 %), C (95.77%), and Pb (0.26%). According to this experiment, it was found that integrated carbon-aluminium electrodes have a great potential to accumulate more heavy metal species from polluted water compare to the conventional aluminium electrode. Here, heavy metal accumulation process obviously very significant on the cathode surface

Evaluation of the Permanent Deformations and Aging Conditions of Batu Pahat Soft Clay-Modified Asphalt Mixture by Using a Dynamic Creep Test

This study aimed to evaluate the permanent deformation and aging conditions of BatuPahat soft clay–modified asphalt mixture, also called BatuPahat soft clay (BPSC) particles; these particles are used in powder form as an additive to hot-mix asphalt mixture. In this experiment, five percentage compositions of BPSC (0%, 2%, 4%, 6%, and 8%) by weight of bitumen were used. A novel design was established to modify the hot-mix asphalt by using the Superpave method for each additive ratio. Several laboratory tests evaluating different properties, such as indirect tensile strength, resilient stiffness modulus, and dynamic creep, was conducted to assess the performance of the samples mixed through the Superpave method. In the resilient modulus test, fatigue and rutting resistance were reduced by the BPSC particles. The added BPSC particles increased the indirect tensile strength. Among the mixtures, 4% BPSC particles yielded the highest performance. In the dynamic creep test, 4% BPSC particles added to the unaged and short-term aged specimens also showed the highest performance. Based on these results, our conclusion is that the BPSC particles can alleviate the permanent deformation (rutting) of roads

Evaluation of the Permanent Deformations and Aging Conditions of Batu Pahat Soft Clay-Modified Asphalt Mixture by Using a Dynamic Creep Test

This study aimed to evaluate the permanent deformation and aging conditions of BatuPahat soft clay–modified asphalt mixture, also called BatuPahat soft clay (BPSC) particles; these particles are used in powder form as an additive to hot-mix asphalt mixture. In this experiment, five percentage compositions of BPSC (0%, 2%, 4%, 6%, and 8%) by weight of bitumen were used. A novel design was established to modify the hot-mix asphalt by using the Superpave method for each additive ratio. Several laboratory tests evaluating different properties, such as indirect tensile strength, resilient stiffness modulus, and dynamic creep, was conducted to assess the performance of the samples mixed through the Superpave method. In the resilient modulus test, fatigue and rutting resistance were reduced by the BPSC particles. The added BPSC particles increased the indirect tensile strength. Among the mixtures, 4% BPSC particles yielded the highest performance. In the dynamic creep test, 4% BPSC particles added to the unaged and short-term aged specimens also showed the highest performance. Based on these results, our conclusion is that the BPSC particles can alleviate the permanent deformation (rutting) of roads

Evaluation of the Permanent Deformations and Aging Conditions of Batu Pahat Soft Clay-Modified Asphalt Mixture by Using a Dynamic Creep Test

This study aimed to evaluate the permanent deformation and aging conditions of BatuPahat soft clay–modified asphalt mixture, also called BatuPahat soft clay (BPSC) particles; these particles are used in powder form as an additive to hot-mix asphalt mixture. In this experiment, five percentage compositions of BPSC (0%, 2%, 4%, 6%, and 8%) by weight of bitumen were used. A novel design was established to modify the hot-mix asphalt by using the Superpave method for each additive ratio. Several laboratory tests evaluating different properties, such as indirect tensile strength, resilient stiffness modulus, and dynamic creep, was conducted to assess the performance of the samples mixed through the Superpave method. In the resilient modulus test, fatigue and rutting resistance were reduced by the BPSC particles. The added BPSC particles increased the indirect tensile strength. Among the mixtures, 4% BPSC particles yielded the highest performance. In the dynamic creep test, 4% BPSC particles added to the unaged and short-term aged specimens also showed the highest performance. Based on these results, our conclusion is that the BPSC particles can alleviate the permanent deformation (rutting) of roads

The compliance of road users with the speed limit at school zones on federal road ft50 (km0-km23)

Driving speed at school zone is an important concern on road safety. In Malaysia, the speed limit of 30km/hr is mandatory at school zone. Thus, this study aims to investigate the compliance of road users towards the speed limit and the signage at school zone and determine the factors of non- compliance. The research was conducted along the Federal Road of Batu Pahat and Ayer Hitam Johor FT050 (KM0-KM23) where 7 schools were situated. Methods used are spot speed and site visit as well as obtaining the road accident statistics from the Royal Malaysian Police. The data collected was analysed, those above 85th percentile speed and below 15th percentile speed did not comply with the speed limit imposed 30km/hr signs. The results show most of the road users failed to obey the 30kn/hr speed limit at all the study locations and the factor affecting this are aggressive driving and signage not meeting the required standards. As consequences, there in an increasing trend of road accidents along FT050

An overview of the practice of traffic impact assessment in Malaysia

Malaysia is a developing country with rapid urbanisation, unceasing development and growing expansion of road network, connecting all the major cities in the country. However, in the downfall, traffic congestions, road accidents and fatalities are still at an alarming level, so to control the traffic impacts generated, the government uses Traffic Impact Assessment (TIA) as planning tool to assess the feasibility and rationality of a development. In Malaysia, TIA has been applied since early 90', with the first draft TIA guidelines proposed in 2005 and was revised in 2011 by Road Engineering Association of Malaysia (REAM) to the guidelines for TIA used today. TIA is about assessing the adverse impacts generated by a proposed development and mitigating the impacts with the appropriate measurements. Since TIA is adopted, developing countries are still facing various issues which happens also in Malaysia. This study will discuss about those issues and provide a method to assess the performance of TIA in Malaysia by determining what constitute to the best practice from an international standard and where Malaysia stand in the standard. The findings from the study will provide the necessary information for the future amendments in the practice of TIA

The enhancement of heavy metal removal from polluted river water treatment by integrated carbon-aluminium electrodes using electrochemical method

The heavy metal removal enhancement from polluted river water was investigated using two types of electrodes consist of integrated carbon-aluminium and a conventional aluminium plate electrode at laboratory-scale experiments. In the integrated electrode systems, the aluminium electrode surface was coated with carbon using mixed slurry containing carbon black, polyvinyl acetate and methanol. The electrochemical treatment was conducted on the parameter condition of 90V applied voltage, 3cm of electrode distance and 60 minutes of electrolysis operational time. Surface of both electrodes was investigated for pre and post electrolysis treatment by using SEM-EDX analytical technique. Comparison between both of the electrode configuration exhibits that more metals were accumulated on carbon integrated electrode surfaces for both anode and cathode, and more heavy metals were detected on the cathode. The atomic percentage of metals distributed on the cathode conventional electrode surface consist of Al (94.62%), Zn (1.19%), Mn (0.73%), Fe (2.81%) and Cu (0.64%), while on the anode contained O (12.08%), Al (87.63%) and Zn (0.29%). Meanwhile, cathode surface of integrated electrode was accumulated with more metals; O (75.40%), Al (21.06%), Zn (0.45%), Mn (0.22), Fe (0.29%), Cu (0.84%), Pb (0.47%), Na (0.94%), Cr (0.08%), Ni (0.02%) and Ag (0.22%), while on anode contain Al (3.48%), Fe (0.49 %), C (95.77%), and Pb (0.26%). According to this experiment, it was found that integrated carbon-aluminium electrodes have a great potential to accumulate more heavy metal species from polluted water compare to the conventional aluminium electrode. Here, heavy metal accumulation process obviously very significant on the cathode surface