eJournal Jabatan Pendidikan Politeknik dan Kolej Komuniti
Not a member yet
436 research outputs found
Sort by
Compensatory Growth Of Juvenile Nile Tilapia And Changes In Body Crude Composition During Starvation And After Refeeding
Get PDFThis work was designed to know the effect of starvation and refeeding on compensatory growth and changes in body crude composition in juvenile Nile tilapia (Oreochromis niloticus). There are four feeding regimens, which are C; feeding for 6 weeks (full-fed) for control treatment, S1; 2 weeks of fasting followed by 4 weeks starving, S3; 4 weeks of starving followed by 2 weeks feeding and S3; starving for 6 weeks(fully starved). S1 treatment had higher growth gain, SGR, FER and PER respectively than other treatments. The poorer values for compensatory growth were obtained in tilapia for S3 treatment. The moisture content in fish significantly decreased and the ash content significantly increased with increasing starvation period before re-feeding for third week and six-week experiment. The lipid content is significantly higher in S1 compare to S2 and S3 treatment for third week experiment. However, there is significantly increase in lipid content from third week experiment (3.79%) to sixth week experiment (15.89%). No significance different were found in protein and ash content among control group, S1, S2, S3 treatment for both week of proximate time. The deprived fish showed hyperphagia during the 2 weeks period or starvation and 4 weeks re-feeding. The difference in body crude composition during starvation and re-feeding indicate that there are metabolism changes during lipid and protein utilization. In conclusion, optimum compensatory growth was achieved and there are changes in body crude composition in juvenile tilapia for 2 weeks food deprivation and refeeding for 4 weeks since there is improvement in weight gain, SGR, PER and FER, lipid and protein content in body composition
A Study Of Ergonomic Awareness Of Musculoskeletal Disorder (Msd) For Workers In Casting Line In Ceramic Factory
Get PDFWorkers in casting line continously standing and squatting in order to move the ceramic mold. Awareness among those workers about these movements and its relation to Musculoskeletal Disorder (MSD) is still low. It is observed that those workers worked continously in the same position continuously and later they suffered discomfort on their body part. The aim of this research is to identify the perception of 55 workers in Casting Line at CeramTec Innovative Ceramic Engineering (M) Sdn. Bhd. on factors that may cause MSD. Two aspects have been identified which are the workstation and MSD symptom. The findings of this research were analyzed using SPSS (Statistical Packages for Social Science) system, version 16.0. The result shows that employees who suffer MSD are considerably high. However, there were some area that were at the average level and necesary improvements are needed to minimise the risk of MSD among the workers
Mitigating Contractor’s Claim on Loss and Expense due to the Extension of Time in Public Projects: An Exploratory Survey
Get PDFThe main research aim is to look at mitigating construction claims on the issues of Loss and Expense in construction projects. This paper however, aims to explore the understanding and also viability of the research topic with reference to the Public Works Department (PWD) projects in Malaysia. Some of the critical issues and challenges faced by the clients in mitigating the contractor’s loss and expense claims will also be highlighted accordingly. Data were collected through an exploratory survey that was distributed among selected multi-discipline professionals in the PWD as well as in the private sectors for comparative purposes. Data were then analysed with the inclusion of the results, comments and recommendations on the importance of research in mitigating contractor’s claims on loss and expense due to the Extension of Time (EOT). The findings showed that 90% of the respondents agreed on the relevance of the research topic in relation to the minimization of loss and expense claims. The findings from this study will also be used in establishing fundamental aspects of the research especially in developing key objectives of the main research
Tahap Kesediaan Pembelajaran Sepanjang Hayat di Kalangan Pelajar Semester Akhir Kolej Komuniti Tawau, Kementerian Pendidikan Tinggi
No full textLifelong Learning play an important role in improving the quality of life and generate human capital development. Thus, educate lifelong learning in Malaysia was a paradigm shift which challenges together current development current. At the same time, through lifelong learning, we can produce a society that is knowledgeable and high skilled. Community college give learning opportunity and training that are wide open to all level of society regardless of age limit and certain qualifying. Community college give emphasis and strive equip students with generic skills and capacity face challenge of various conditions after leaving formal education in Kolej Komuniti Tawau, Sabah (KKTS) especially. Thus, this study give convergence to KKTS students\u27 readiness to be capable in setting objective, enhance knowledge and skills that are suitable, decide own direction, searching for required information and learning strategy adaptation in various situations after graduated Community College Sijil level in Kolej Komuniti Tawau, Sabah (KKTS). Researcher use Lifelong Learning Questionnaire that have been developed by Kirby et al., (2010) to see how far lifelong learning readiness among students in Kolej Komuniti Tawau, Sabah (KKTS)
A Study Of Tio2 Thin Film Using Sol-Gel Method
Get PDFThis paper reports on a study of titanium dioxide (TiO2) thin films. TiO2 thin films were prepared by sol-gel method using nano- TiO2 powder dissolved in Isopropanol solution. The nano- TiO2 powder was previously extracted from local mineral waste which is known as ilmenite. Using the aqueous solution containing 0.1g of nano-TiO2 powder, several acids which are acetic, hydrochloric (HCI) and nitric were used to study its effects. Each sample was mixed with Triton X-100. Using spin-coating technique the thin films were deposited with 1000 r.p.m for 30s and 3000 r.p.m for 60s. The thickness of each sample was characterized using KL surface profile. The surface topologies and roughness were characterized by an XE-100 Park system atomic force microscope (AFM).The optical property was characterized with a Lambda-750 Perkin Elmer ultra violet-visible spectrometer (UVVis). It was found that by using nitric acid more uniform and transparent TiO2 thin film has been produced
Penggunaan Aplikasi Rangkaian Sosial Dalam Kalangan Pelajar Politeknik Kuala Terengganu
Get PDFThe use of social networking applications has been widely used nowadays and it\u27s a lot of good if utilized.Therefore, this study was conducted to identify the purpose of the use of social networking applications and their relationship with students and the courses they taken. The sample for this study consisted of 162 students who take the program Diploma in Electrical Engineering (Communications) and Diploma in Information Technology (Programming) offered at the Polytechnic Kuala Terengganu. Questionnaires were used as the research instrument. The objective of the study was to identify the use of social networking applications for the purpose of learning and social goals. In conclusion, the student at the Polytechnic Kuala Terengganu can make use of social networking applications with a variety of learning methods such as learning kolaboratif. Educators can download teaching materials through social networking applications in the form of more attractive as in multimedia format because it is effective in the delivery of science and able increase interest and academic achievement
Faktor-faktor Yang Mempengaruhi Penglibatan Pelajar Dalam Aktiviti Kokurikulum Di Politeknik Tuanku Sultanah Bahiyah
No full textCurricular activities that take place outside the classroom and it is an important element in the education system in Malaysia. Co-curricular activities are a continuation and strengthening of the program or learning activities in the classroom or the curriculum. This study aims to identify factors that affect the level of involvement among students Semester 5 and 6 in Politeknik Tuanku Sultanah Bahiyah. There are three main contributors were identified to increase student engagement role in co-curricular activities. Three contributing factors were independent, infrastructure and perception. The sample consisted of 304 students of Politeknik Tuanku Sultanah Bahiyah. The findings show that the factors providing appropriate infrastructure and sufficient potential to improve student engagement. Planning activity time, the selection of members of the group and the diversity of activities also need to influence students involving active in extra-curricular activities
Design of Butterworth Band-Pass Filter
Get PDFThis paper presents a high order filter for the Butterworth filters up to 8th and 9th order. The higher order filters are formed by using the combination of second and third order filters. While designing the Band-Pass Butterworth filter, four parameters need to be specified such as Ap (dB attenuation in the pass band), As (dB attenuation in the stop band), fp (frequency at which Ap occurs) and fs (frequency at which As occurs). The design procedure involves two steps, the first step is to find the required order of the filter and the second step is to find the scale factor that must be applied to the normalized parameter values. The Band-Pass Butterworth filler is a combination between low pass and high pass For the low pass Butterworth filter, the value of a resistor that has been used are 100KΩ and the value of the capacitor is found by scaled inversely with the frequency and the selected resistor value. While for the high pass Butterworth filter, the value of a capacitor that has been used is 0.05µF and the resistor value is found by scaled inversely with the frequency and the selected resistor value. The Butterworth Band-Pass filler required to bypass certain band of interest while suppressing the frequency below and above than pass band. Two configurations design circuit was tested by using LTspice software
Influence of Rice Husk and Composition Ratio on Mechanical Performance of Polypropylene Composite
Get PDFIn this study, the surface modification techniques were performed on rice husk flour (RH) in polypropylene (PP) matrix and consolidated to improve the mechanical properties. The rice husks were formed with the granular size composite with such as untreated, boiled, and boiled-sodium hydroxide (NaOH) treated fiber. An internal mixer machine is set for four different composites compositions ratio and the samples produced by hot press machine. The analysis was carried out using a 2- factor and 3- level design of experiment (DOE). An analysis conducted based on variance (ANOVA) is to determine on how the formed of three type rice husk and the composition of the rice husk ratio affected the mechanical properties of the composites. It was proven that both the rice husk type and the composition demonstrated significantly different results in terms of the tensile test, impact test and hardness test. The overall results indicated that the boiled-sodium hydroxide (NaOH) treated rice husk fiber composite exhibited the highest performance
Campuran Tanah Liat Dan Sisa Bata Simen Dalam Menentukan Sifat Geoteknik Tanah
Get PDFTanah merupakan suatu binaan yang kompleks dan sifatnya berubah-ubah. Tanah berperanan sebagai penyokong beban kepada semua struktur yang dibina di atasnya. Jurutera awam perlu mengkaji komposisi dan sifat-sifat tanah seperti agihan saiz tanah, jenis tanah, kebolehtelapan, kebolehmampatan, kekuatan ricih dan kapasiti beban galas tanah. Kajian ini dijalankan untuk mencari alternatif yang lain bagi menstabilkan tanah liat. Tanah liat diklasifikasikan sebagai tanah yang bermasalah bagi proses pembinaan. Tanah liat mengandungi peratusan air yang tinggi berbanding tanah lain. Sifat kebolehmampatan dan kelembapan yang tinggi serta kekuatan ricih yang rendah merupakan masalah untuk pembinaan dijalankan. Satu kajian sifat geoteknik tanah liat yang dicampurkan dengan sisa bata simen dijalankan di mana ujikaji had atterberg dan ujian pemadatan dijalankan bagi mendapatkan nilai had plastik, had cecair, ketumpatan kering maksimum dan kandungan air optimum tanah. Peratusan campuran sisa bata simen ialah 0%, 10%, 25% dan 50% daripada berat tanah liat. Dapatan ujian had atterberg menunjukkan bacaan had plastik menurun dari 35% hingga 27%, had cecair menurun daripada 81% hingga 56% dan indeks keplastikan juga menurun daripada 46% hingga 29%. Manakala hasil ujian mampatan menunjukkan bacaan ketumpatan tanah meningkat daripada 1380 kg/m3 hingga 1523kg/m3 dan peratusan kandungan air menurun dari 23% hingga 16%. Berdasarkan data yang diperolehi dengan penambahan sisa bata simen kandungan air akan berkurangan dan ketumpatan tanah liat meningkat. Ini menunjukkan sisa bata simen sesuai untuk dijadikan salah satu bahan untuk menstabilkan tanah