Fakulti Sains dan Teknologi

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Now showing 1 - 20 of 1967
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    Absorption of gamma radiation by white cement samples as an artificial tissue
    (Universiti Malaysia Terengganu, 2008) Nur Kamal Hidayah Kamarulzaman
    There are many bad effects when we are expose by gamma ray. Due to that cause, this project has been run in order to investigate which materials are most efficient for gamma absorption. In this research, the material being used is white cement as the sample being test and the experiments have been carried out in three conditions which are wets, half dry and dry cement. From the research, wet cements show the most efficiency in rate of absorption and it almost equal to the rate of absorption of flexi glass. This results prove that molecule of water are influence the rate of absorption. So that, sample which the highest rate of absorption is wet sample with the rate of absorption is 0.27. In future, in order to produce better obstruction of gamma ray, white cement can be added with aluminium because the absorption rate of aluminium and white cement is good.
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    The Abudance and diversity of phytoplankton in selected mangrove areas in Kustem
    (Terengganu: Kolej Universiti Sains dan Teknologi Malaysia, 2006) Hasnul Khatimah Abdul Manaf
    Phytoplankton abundance and diversity in selected mangrove areas in KUSTEM were examined before monsoon (August) and during monsoon (November) 2005.
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    Abundance and composition of firefly population (coeoptera;lampyridae) in Setiu Wetland, Terengganu with their potetial food preference
    (Terengganu: Universiti Malaysia Terengganu, 2007) Aima Jamal
    Fireflies occurance in the mangrove is considered as value added for ecotourism. A recent study in Setiu Wetland, Terengganu revealed that Pteroptyx malaccae (Coleptera: Lampyridae) was the only species occured; with found to be at peak abundance at 2100 to 2300 hrs observed from September to December 2006. In this study, fireflies were caught using insect net and laboratory work such as identification also was done.
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    The abundance and diversity of butterfly communities (insecta:lepidoptera) in Sungai Tersat, Hulu Terengganu, Terengganu
    (Terengganu: Universiti Malaysia Terengganu, 2007) Siti Badariah Jemain
    utterfly has been identified as important ecological indicator organisms for assessing biodiversity and for monitoring ecosystem responses to environment. This study was conducted to determine the abundance and diversity of butterfly communities and to investigate the interaction between the butterfly species with microhabitats preference in Sungai Tersat, Hulu Terengganu. It was carried out within four months, from August until November 2006. Three stations were selected and butterflies were captured randomly by using insect net. A total of 110 butterflies comprising of 40 species from five families were recorded. The most dominant family with the highest number of individuals was Pieridae (53 individuals). However, Nymphalidae contributed the highest number of species (20 species) at all stations. Leptosia nina was the most dominant species collected (25.45%), followed by Eurema lacteola (10.91%) and Ypthima baldus (8.18%). Leptosia nina was mostly occurred in riparian area and they were feeble in flight. Riparian area was microhabitat preferred by most of the butterflies. There was strongly significant correlation between relative humidity to the assemblage of this community. The capture rate varied within sampling months due to climate and seasonal changes.
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    The abundance and diversity of dragonfly (insecta:odonata) community in Terengganu state and Tumpat Delta, Kelantan
    (Terengganu: Universiti Malaysia Terengganu, 2007) Rohaina Che Man
    A total of 232 individuals belonging to 50 species representing by eight families of odonates community were successfully recorded from Sungai Nerus, Sungai Jeneris, Sungai Kemat, Beluk:ar Bukit, Tumpat and Lata Tembakah. Generally, suborder Zygoptera was more abundance and diverse than Anisoptera. Nevertheless, Llbellulidae (Anisoptera) was the most dominant family followed by Chlorocyphidae (Zygoptera) while the rarest family that had been recorded was Corduliidae (Anisoptera) and Euphaeidae (Zygoptera). Crocothemis servilia (Family: Libellulidae) was found to be the most abundant species recorded in this study. Belukar Bukit was supported the most diversified species of odonates community compared to the other sites. The assemblages of odonates community were strongly associated to heterogeneity of microhabitats and natural biotopes structure which related to the presence of vegetation and the amount or concentration of light. Basically, Zygoptera were more preferred to perch at water surface or riparian area, which strictly to flowing water while Anisoptera were commonly found at open area. fhey were less active and hard to found at water surface or nparian areas.
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    The abundance of fungus associated with mangrove community in East Coast of Peninsular Malaysia
    (Terengganu: Kolej Universiti Sains dan Teknologi Malaysia, 2006) Nur Shadilla Mohammad
    A total of 57 species of fungus were recorded in this study including 27 unidentified species were collected from four types of substrates which were woody, root, leaves and Nypa(palmae).
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    Abundance, diversity and distribution of dipterocarp at Bukit Bauk Forest, Dungun, Terengganu
    (Terengganu: Universiti Malaysia Terengganu, 2007) Nurhidayah Ishak
    Study was conducted at Bukit Bauk Forest to assess the composition and structure of dipterocarp trees at three different elevations; lower, middle and higher (45m, 145m and 345m a.s.l.). The objectives of this study are to determine the abundance and diversity of dipterocarp forest at Bukit Bauk Forest and to determine the structure of the dipterocarp forest at Bukit Bauk Forest. The 20 x 50m plot method was performed to determine the composition of dipterocarp with parameters such as Diameter at Breast Height (DBH), height, stem structure and canopy layer. Result showed that 45 dipterocarp species from five genera were recorded at the study site.
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    Accumulation of heavy metals in seagrasses (Halodule pinfolia and Halophila minor in Setiu wetland, Terengganu
    (Kolej Universiti Sains dan Teknologi Malaysia, 2003-03-08) Noraifaa Abdullah Sani
    Seagrass and sediment samples were collected from four stations in Setiu Wetland
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    Acoustic emission characterization of pitting corrosion in crude oil storage tank
    (Terengganu: Universiti Malaysia Terengganu, 2007) Nurul A'in Ahmad Latif
    The purpose of this study is to prove that acoustic emission is the non destructive test, which useful to detect the pitting corrosion in the crude oil storage tank. However, the electrochemical analysis is done to study the corrosion rate in the crude oil of various places. The crude oil is from Dulang, Bintulu, Miri Light, Tapis and Labuan. The electrochemical study has show that the corrosion rate of ASTM 516 grade 70 exposed to each various locations of crude oil was very low. Therefore, it can be concluded that there is no significant effect of crude oil to the surface of ASTM 516 grade 70 steel as long as if there is no constituent aggressive anion present in crude oils. Simulation technique is done to prove that the acoustic emission able to detect the signal from pitting corrosion. This is done by applying the low voltage and low current on the specimen. Meanwhile, for the comparison between the acoustic emission signal and noise is done to identified and differentiate the amplitude range between them.
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    Adsorption of carbon monoxide and nitric oxide from palm shell burning onto coal based activated carbon
    (Terengganu: Universiti Malaysia Terengganu, 2007) Sharmeela Maira Khairul
    The main objective of this study is to fabricate an alternative and economical unit for the removal of ambient air pollutants, which are CO and NO from the burning of palm oil waste. Through this study as well, the correlation between the efficiency of the activated carbon in removing the pollutants and the flowrates were determined. Moreover, palm oils have emerged as one of the most important oils in the world's oils and the market of fats. About 90% of palm oil is used as food related products worldwide, and the other 10% is used for basic raw material for soap. Fibers and shells are the main wastes generated from the palm oil processes.
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    Adsorption of metsulfuron-methyl on selected agricultural soils under oil palm plantation.
    (Terengganu: Kolej Universiti Sains dan Teknologi Malaysia, 2005) Nicholas Yeow Jee Sing
    In this study, the adsorption capacity of metsulfuron-methyl was examined on selected agricultural soils under oil palm plantation. The samples were collected from four agriculture soil series (Bernam, Tongkang, Selangor and Jawa) in Bukit Rotan Baru Division oil palm estate with 2 different depths: surface (0-10 cm) and bottom (20-30 cm). There are four different parameters which are involved in the chemical analysis of soil, which are: soil moisture content, soil pH, organic carbon content, and particle size distribution.
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    Aerial mapping of mangrove forest in Tumpat, Kelantan
    (Terengganu: Universiti Malaysia Terengganu, 2000) Chong Yew Seng
    Mangrove forest in East Coast of Peninsular Malaysia has not been fully studied compared to the West Coast of Peninsular Malaysia. This is because the distribution of mangrove in the East Coast is much less than the West Coast. Mangroves in Tumpat, Kelantan have never been documented and are in the danger of over exploitation. The study area consists of 17 islands which are located in Tumpat, Kelantan. The final map of the study area was made based on interpretation of aerial photographs of scale 1 : 20 000. The final map contains mangrove forest distribution in the study area. Topographic map of scale 1 : 50 000 was used as a secondary resource.
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    Age determination of the spotted seahorse (Hippocampus Kuda) using otoliths
    (Terengganu: Kolej Universiti Sains dan Teknologi Malaysia, 2005) Pak Hui Hoon
    A total number of 40 Hippocampus kuda were examined to determine age by means of their otoliths. Each individual have three pairs of otoliths which are located in the brain cavity. The growth rings on the otoliths were counted from photographs taken and by sketching using camera Lucida. The otoliths were found to be good age indicators in validating seahorse age. Rings on the otoliths correlated well with age of the seahorses.
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    Agihan kuprum, plumbum dan zink mengikut fraksi dalam enapanmuara Sungai Ibai, Terengganu
    (Terengganu: Universiti Malaysia Terengganu, 2000) Gan Chuen Moi
    Penyampelan sebanyak 3 kali dilakukan pada April, Mei dan Jun 1999 dengan 7 stesen dipilih. Kandungan logam Cu, Pb dan Zn dalam endapan muara Sungai Thai ditentukan dengan penganalisaan sampel secara total manakala agihan logam berat mengikut fraksi ditentukan dengan teknik penganalisaan sampel secara berturutan.
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    Agihan logam berat di dalam aliran keluar air kuras dan sedimen di sekitar bekas tapak pelupusan kubang ikan, chendering, Kuala Terengganu
    (Terengganu: Kolej Universiti Sains dan Teknologi Malaysia, 2005) Adyani Amit
    Kajian ini dijalankan bagi menentukan kandungan beberapa spesies logam berat seperti Pb. Cd, Mn, Fe, Cr, Zn, Ni dan Al di dalam air kuras dan sedimen di sekitar bekas tapak pelupusan sampah Kubang Ikan. Ia juga bertujuan untuk mengkaji agihan logam berat ke kawasan sekitarnya. Sebanyak 5 stesen persampelan air dan sedimen telah diambil.
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    Agihan logam dalam air kurasan dan sedimen di sekitar tapak pelupusan sampah Majis Perbandaran Kuala Terengganu di Bukit Kor Marang
    (Fakulti Sains dan Teknologi, 2005) Mohamad Fikri Rosly
    Tumpuan kajian ini adalah untuk menentukan kepekatan dan taburan penyebaran logam berat di dalam kuras dan sedimen di sekitar tapak pelupusan sampah Majlis Perbandaran Kuala Terengganu, Bukit Kor, Terengganu.
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    Agrobacterium-mediated transformation of omega-3 desaturase gene into rice calli
    (Universiti Malaysia Terengganu, 2013) Siti Mohainim Mohammad
    C urrent s tu dy is an atempt to trans fo rm the Omega-3 desaturase gene into rice calli using Agrobacterium-mediated tec hniq ue. The effect of vani llin concentrations at 0, 200 and 400 mM o n the rate of trans fo rmation was examined. Agrobacterium lumerfaciens LBA 4404 ha rbo uring Omega-3 desaturase gene and hygromycin phosphotransferase gene (hp t) conferring resistance to hygromycin was used as marker and selection o f puta tive transforman t. GUS histochemical assay provided the first evi de nce o f the transgene and futher confirmed using PCR analysis. 400 rnM o f va ni llin showed the sig ni ficant e ffect i n rice growth and trans fo rmation e fficiency.
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    Agrobacterium-mediation trannsformation of rice with omega-3- desaturase gene
    (Universiti Malaysia Terengganu, 2013) Muhammad Haziq Syahir Khaizuran
    For more than two decades, acetosyringone is the phenolic compound uses in Agrobacterium-mediated transfmmation using callus de1ived from seed as a starting material. In the present study, the efficiency of vanillin in Agrobacterium-mediated transformation of omega-3-desa!urase gene into rice calli was investigated. The results showed that vanillin concentration at 200 pLM produced the highest percentage of putative transformant on the 8J1tibiotic screening medium and P-glucuroniclase (GUS) assay compared to control ancl400 ~-tM ofvanillin. The ability of vanillin in activating vir gene provides an alternali ve phenolic compound for Agrobacterium-mediated gene transformation of rice.
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    Aktiviti biologi ke atas ekstrak kasar span, 'Aaptos sp.'
    (Kolej Universiti Sains dan Teknologi Malaysia, 2003-03-09) Norhadayu Abdul Manan
    Span merupakan spesies yang mengandungi sebatian bioaktif yang telah dibuktikan sebagai pemyumbang besar dalam bidang farmaseutikal dan perubatan
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    Akumulasi kadmium dari sedimen yang tercemar secara tiruan oleh rumput laut (halodule pinifolia)
    (Terengganu: Kolej Universiti Sains dan Teknologi Malaysia, 2005) Rosni Jusof
    Rumput taut bagi spesies Halodule pinifolia yang diambil dari Setiu Wetland. Akumulasi Cd dalam akar, daun dan seluruh pokok bagi rumput taut Halodule pinifolia meningkat apabila kepekatan Cd ditingkatkan. Pengumpulan logam Cd dalam akar lebih tinggi berbanding daun.