[en] Tomography is a process of obtaining a single plane image of an object under examination. The quality of such images is dependent on a few factors including properties of the hardware components in a tomography system. The paper describes the hardware systems for both gamma ray and X-ray computed tomography and presents CT images from both systems. Tomographic imaging using these two modalities in different configurations is discussed. The apparatus used in the second generation and third generation tomography system configuration is explained. (Author)

[en] Hand held devices are becoming commonplace in current society. Advances in hand held computer technology offer the ability to acquire and manage data faster, easier and yet accurate. This paper describes the system design, software and preliminary testing of a Personal Digital Assistant (PDA) based data acquisition system of nuclear instrument for use in MINT. Methods for integrating this technology into a research study and suggestions for increasing the performance of data acquisition and analysis using PDA are discussed. The authors offer some practical solutions for researchers planning to use PDAs in their research or monitoring of data. (Author)

[en] This paper describes the somatic embryogenesis of Carica papaya. Culture medium used was1/2 strength MS basal medium supplemented with 6% sucrose, 0.27 % agar, glutamine and various concentrations of 2,4-Dichlorophenoxyacetic acid (2,4-D). After 8 weeks in culture, the best concentration of 2,4-D to induce somatic embryo is at 45.2 μM. (Author)

[en] Numerous polysaccharides and polysaccharides-protein complexes have been isolated from mushrooms and used as a source of therapeutic agents. The mycelium of Pleurotus sajor caju, Pleurotus tuber-regium, black ganoderma, and the fruiting bodies of Pleurotus sajor caju and Pleurotus florida were used to determine the percentage of polysaccharides obtained from the mushroom raw material. Hot water extraction method was used followed by refrigerated centrifuge and lyophilization. The yield from the various species will be compared. (Author)

[en] In this paper, the objective is to determine the optimum impeller speed correlated with holding time to achieve homogeneous reinforcement distribution for a particular set of experimental condition. Attempts are made to simulate the flow behaviourof the liquid aluminium using FLUENT software. Stepwise impeller speed ranging from 50 to 300 rpm.with 2 impeller angle blades of 45 and 90 degree with respect to the rotational plane were used

[en] The heat is on but not at the co-combustor plant. Using the Computational Fluid Dynamics (CFD), modeling and simulation of an incinerator has been made easy and possible from the comfort of cozy room. CFD has become an important design tool in nearly every industrial field because it provides understanding of flow patterns. CFD provide values for fluid velocity, fluid temperature, pressure and species concentrations throughout a flow domain. MINT has acquired a complete CFD software recently, consisting of GAMBIT, which is use to build geometry and meshing, and FLUENT as the processor or solver. This paper discusses on several trial runs that was carried out on several parts of the co-combustor plant namely the under fire section and the mixing chamber section

[en] The paper describes work done on synthesis of γ-alumina by using the solvo thermal technique. Synthesis of γ-alumina involves the transition reactions of the aluminium hydroxide into alumina by a dehydroxylation process. As there are many forms of transition aluminas produced during this process, a x-ray diffraction (XRD) technique was used to identify γ-alumina and the other forms of alumina. After establishing the optimum conditions for the production of a single-phase γ-alumina, characteristic study on the product was performed. An important parameter in establishing nanosized powders is their crystallite size and analysis of the γ-alumina shows that it is a nanosized powder with a size of 28 nm. Other properties analysed include morphology, surface area and particle size. (Author)

[en] The papers presented in this seminar discussed the following areas: techniques, processes, characterization, infrastructures and products development, technology development, instrumentation, research and development management in MINT - Malaysian Institute for Nuclear Technology Research. It covered the following subjects: environment, agriculture and biotechnology, advanced materials, nanotechnology; reactor application, safety, medicine and biotechnology, alternative energy, and ICT

[en] The paper describes the performance of Al-Zn-Sn alloy as a sacrificial anode for cathodic protection in seawater was investigated. Electrochemical technique used for measuring corrosion rate of the Al-Zn-Sn alloy sacrificial anode were Tafel plot. Potential measurement was also carried out using lab apparatus. All aspects of measurements such as corrosion potential, samples dimension and samples composition are presented in details. Experimental data and analysis results will be used in evaluating the performance of Al-Zn-Sn alloy sacrificial anode in seawater and will be discussed in this paper. (Author)

[en] The use of PCR-RFLP analysis as a useful microbial identification tool has been evaluated for years. This approach was verified effective worldwide, where differential DNA bands and sequence markers distinctive to specific microbes or microbial groups have been identified. In our study, PCR-RFLP technique has been adopted in the identification of our indigenous N₂-fixing isolates obtained from several local environments. RFLP was carried out with suitable restriction enzymes and the patterns were documented. Representatives of the different patterns were selected and analysed with the 16S ribosomal DNA sequencing method. The results demonstrated correlation between the differential RFLP patterns and the 16S rDNA identities. (Author)