Pusat Pengajian Teknologi Industri - Tesis

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Image Classification On Ex-Mining Land Area Using Echo Classifier
(2003-10)
Baharuddin, Salmah
The purpose of this study is to map the landcover ofa large and complex surface of an ex-mining land area using remote sensing technology. Remote sensing imagery has proven useful to generate landcover and it is timely, potentially less expensive than conventional ground methods. Study goals included evaluation of various classification algorithms, deriving a landcover map of the ex-mining land using satellite image and collection of ground truth points in order to perform a more quantitative analysis and accuracy assessment of the methods used.
The Structure of Accelerated Sulphur Vulcanizates of Styrene-Butadiene Rubber And Acrylonitrile-Butadiene Rubber
(1984-02)
Wong, Kwai Wah
Structural characterisation of CBS-accelerated vulcanizates of SBR and NBR as a function of type of cure system and cure time was investigated.
Synergy Between Chemical And Mechanical Actions In The Alkaline Peroxide Pulping Of Oil Palm Empty Fruit Bunch
(2014-04)
Derma Wan, Yunita Megasari
The synergy between chemical and mechanical actions in an alkaline peroxide pulping (app) system was applied for producing pulp and paper from oil palm empty fruit bunch (efb). In the app, both pulping and brightening process occurring as one process. This process was found appropriately undertaken for 40 minutes at 70°c. Softening and brightening of efb was found most effectively done by synergizing the strength of alkaline peroxide with mechanical fibrillation from two different andritz sprout bauer refiner blade patterns. Variation of the ap strength was done by increasing the alkali-to-peroxide ratio from 2:2.5%, 4:5% to a maximum of 8:10%. Apart from that, ap strength was also increased by applying ap impregnation in multiple stages. Applying these variations on efb and subjecting the ap-treated efb to subsequent refining indicated that refining effect could be intensified by plate d2a505. The effect was so tremendous that variation in chemical strength was to a certain extent masked/ruled out. The effect of increasing ap chemical strength was clearly delineated by refining with plate 12716, which depended more on chemical strength to produce adequate fibrillation.
Characterization And Utilization Of Extracted Starch And Particles From Oil Palm Trunk For Particleboard Manufacturing
(2014-12)
Mohd Salleh, Kushairi
This study investigated the potential of the oil palm particles and oil palm starch produced and extracted from the oil palm trunk. Commercial rubberwood particles and wheat starch were used as a comparison. The starches were modified with polyvinyl alcohol to change its properties for better performance. Basic properties of raw materials were determined for their final properties of the boards. The raw materials were also characterized using scanning electron microscopy, xray diffractometry analysis, thermogravimetric analysis, and differential scanning calorimetry analysis. Comparisons were made between boards and panels bonded with urea formaldehyde were used as a control board. The physical and mechanical testing carried out based on japanese industrial standard a5908, which include density, moisture content, dimensional stability testing, and mechanical strength. All mechanical properties met the requirements, but none of the physical properties met the requirements except for moisture content. The panels made using the oil palm particles and bonded with the oil palm starch showed better mechanical properties, but poor dimensional stability compared to those panels made with the rubberwood particles, and panels bonded with the wheat starch.
Isolation And Physicochemical Properties Evaluation Of Pepsin-Solubilised Collagen And Its Hydrolysate From The Integument Of Sea Cucumber (Stichopus Vastus)
(2014-04)
Abedin, Md. Zainul
Sea cucumber (stichopus vastus) is considered as an underutilised source, since only its stomach and intestines are eaten raw as salad in few asian countries. All other parts including the integument (high content of collagen) are discarded and hence, a valuable by-product having potential food, cosmetic and pharmaceutical applications is wasted. In view of this, the present study was designed to isolate pepsin-solubilised collagen (psc) from the integument of 5. Vastus and to prepare its hydrolysate through trypsin hydrolysis for their potential applications. Sds-page analysis showed that the isolated psc was of type i and consisted of three ai chains with a yield of 21.3%. Fourier transform infrared (ftir) spectroscopy revealed that the structure of triple helix was well preserved in the psc. Amino acid composition showed that glycine was dominant in the psc. Peptide map of the psc digested by v8 protease was different from that of calf skin type i collagen.

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