The paper reviews and introduces the state-of-the-art nature-inspired metaheuristic algorithms in optimization, including Firefly algorithm, PSO algorithms and ABC algorithm. By implementing these algorithms in Matlab, we will use worked examples to show how each algorithm works. Firefly algorithm is one of the evolutionary optimization algorithms, and is… (More)
The efficient generation of second-harmonic light and squeezed light requires non-linear crystals that have low absorption at the fundamental and harmonic wavelengths. In this work the photo-thermal self-phase modulation technique is exploited to measure the absorption coefficient of periodically poled potassium titanyl phosphate (PPKTP) at 1,550 nm and 775… (More)
Netbooks, the smallest laptop devices, are ironically the largest market segment, based on sales in the last year. These are light-weight, cheap, and designed for the limited tasks that rely on the internet. Given the large user base of these devices, it is inevitable that they will be used criminally. This is an extension on the fact that all technologies… (More)
I, Amrit Pal Singh Takhar hereby declare that this dissertation is my own original work and that all source material used has been clearly identified and acknowledged. No part of this dissertation contains material previously submitted to the examiners of this or any other University, or any material previously submitted for any other examination.