N T Thanh Ha

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ii Declaration No portion of the work referred to in this thesis has been submitted in support of an application for another degree or qualification of this or any other university or institution of learning. framework, including shadow computations and back-lighting. Description of the declarative approach to the extension to the Shacked's framework with(More)
Gastroenterologists are still unable to differentiate between some of the most ordinary disorders of the gut and consequently patients are misdiagnosed. We have developed a swallowable gas sensor capsule for addressing this. The gases of the gut are the by-product of the fermentation processes during digestion, affected by the gut state and can consequently(More)
We study numerically the diffusion mechanism in silica liquid via molecular dynamics simulation. For this purpose we examine the evolution of structural units SiO(x) (x=4-6) for different times and at temperatures from 3000 to 4500 K. Simulation shows that the diffusivity of the silicon particle is performed through the transition SiO(x)→SiO(x±1), i.e., the(More)
The Crude Preheat Train (CPT) in a petroleum refinery recovers waste heat from product streams to preheat the crude oil. Due to high fouling nature of the fluids that flow through the exchangers, the performance deteriorates significantly over time as less heat can be transferred through the fouling layers. Prediction of the performance for optimal(More)
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