The stochastic process and the squeezed state representation of photons was applied to study the propagation of the entangled photons produced in a nonlinear micro PANDA ring resonator. The four-wave mixing process for generating entangled photon is also analyzed to get the stochastic equation of motion of the entangled photon states. The external spectrum correlation for entangled photon generation is also achieved in analytic form. The results are appropriate to be a quantum processing device to use in quantum computer.

In this study we investigated on the mechanical properties and physical properties of light weight block mixed with banana fibers. For the cost effective purpose and environmental friendly product banana fibers which is rich in fiber was used as a precursor in producing light weight block. In this framework a series of blocks were fabricated using banana fibers for instead different raw material involve cement and sand for 28 days incubation. The result show that the block with mix banana fiber was replaced cement in 2.5 %wt has the density value and compressive strength is 1376 kg/m3 and 62.25 kg/cm3 respectively. While water absorption and the maximum shrinkage limit value are 32.86 % and 0.12 % respectively were obtain from the samples mixing 7.5% of banana fibers. After examination of of Thai Industrial Standard (TIS 1505- 2541) the result illustrated the value are standard. It can be concluded that the light weight block mixed banana fibers in ratio of sand: cement: lime: gypsum: aluminum powder: banana fibers are 50: 27.5 : 9 : 9 : 2 : 2.5 will also be used as an alternative precursor materials for producing the light weight block by natural raw materials for cost effective purpose.

The propagation of photon states in a nonlinear micro - PANDA ring resonator are studied and analyzed. The squeezed state representation of photon can be achieved via four – wave mixing process in the micro-ring resonator. The effect of thermal noise is also studied to optimum the validity of the next application in the CPU of quantum computer.

This Research purposes assessment of lightning performance on transmission system 69 kV in Metropolitan Electricity Authority (MEA). The case studies illustrated the lightning strike to direct top pole in order to guideline considering the critical flashover voltage value of insulator is able to withstand it and improvement lighting protection in the future. This solution analyzes using the Alternative Transient Program-Electromagnetic Transient Program (ATP-EMTP). The result found that voltage across insulator before and after improvement lightning protection by external ground wire. Factor effect to voltage across the insulators is the tower footing resistance wave of lightning current and interval between towers. It depends on relation with front time of wave. The analysis economics is very important. This Research is studying interruption cost of outage since back flashover so analysis the break even point of the installation external ground. The result found upon improvement lightning protection by installed external ground. The pay back period of that is 9 years installed ago. This result can conclusion is external ground able reduction interruption costs of outage.

This research presents a study of the compressive strength tensile strength flexural strength and water absorption of Cellular Lightweight Concrete containing fine fly ash and ground bagasse ash. Portland cement (CT) is partially replaced with pozzolans 20 30 and 40% by weight of the cementitious materials. The results show that the compressive strength tensile strength flexural strength and low water absorption of Cellular Lightweight Concrete improves substantially with partial replacement of Portland cement with fly ash and bagasse ash. Cellular Lightweight Concrete mix cement containing 20 and 30% of pozzolans can be used to make cementitious materials. In addition the use of fly ash and ground bagasse ash produces Cellular Lightweight Concrete mix with good compressive strength tensile strength flexural strength and water absorption.