CuAlO_dos thin films are prepared on Si or sapphire substrate by sol-gel method using two kinds of sols. In the case of acetate sol, XRD peaks of CuAlO₂ observed at annealing temperature of 800-950 ?C on both Si and sapphire substrates. In contrast, in the case of the films prepared using nitrate on Si substrate, XRD peaks of CuAlO₂ have been observed only at the annealing temperature of 800-850 ?C. At annealing temperature of 850?C, peaks of other species have been observed beside the CuAlO₂ peaks, then, the CuAlO₂ peaks disappeared at annealing temperature of 900 °C with increasing in intensity of the other peaks. Intensity of the other peaks decreased at annealing temperature of 950 ?C with appearance of broad SiO₂ peak. In the present, we ascribe these peaks as metal silicide.

115 Brand new Interactions between Spatial Build and you may Belongings Price

Homes rates has got the total features away from urban area, symbolizing the fresh public and you will monetary features of the city. Accordingly, homes price can be utilized just like the an indication, which can pick the alterations out of spatial framework and socioeconomic variations caused by urban creativity. This research attempted to speak about the changes inside the belongings rate of the a separate street design. Methodologically, they observed Area Syntax, that will translate metropolitan spatial framework totally, to identify the partnership between your types of road channels and you will belongings price. Caused by the new regression data demonstrated the latest ‘consolidation directory away from Room Syntax was statistically extreme and it has an excellent strong relationship that have house rates. If your consolidation well worth is higher, homes rate grows proportionally. Then, playing with regression formula, they made an effort to expect the brand new home speed alter of every away from the new loads nearby the channels that are recently exposed. The analysis tips or studies show have the benefit of forecasting the changes into the belongings speed in the a simple way. Simultaneously, it does sign up for planners and you will endeavor executives to establish relevant polices and you will smoothing metropolitan regeneration plans because of enhancing owners facts from the bringing you are able to results and you will gurus within their residential property speed until the delivery regarding urban regeneration and you can innovation projects.

114 Plasma Services Effect on Fluorescent Tubing Plasma Antenna Overall performance

So it papers gifts the research on overall performance out-of monopole antenna having neon tubes. Inside research, the fresh new simulator and you can fresh method is performed. The fresh fluorescent tubing with various duration and you may size is tailored using Pc Simulation Technology (CST) software additionally the functions away from antenna parameter is simulated on the application. CST was used in order to simulate antenna parameters like return losses, resonant regularity, acquire and directivity. Vector Community Analyzer (VNA) was applied to measure this new return death of plasma antenna during the acquisition to help you verify the simulation results. In the simulator and you may check out, the production frequency is determined ranging from step one Ghz in order to ten Gigahertz. The outcomes demonstrate that brand new go back death of plasma antenna alter when sized neon tubes are ranged, correspond to the various plasma attributes. They signifies that more philosophy regarding plasma functions eg plasma frequency and you may crash regularity offers improvement results of return losings, get and you may directivity. Into the gain, the costs include dos.14 dB to 2.thirty-six dB. The brand new go back death of plasma antenna has the benefit of higher well worth include – dB to – dB. The higher the costs from plasma regularity and you will accident volume, the better return losings is available. The prices received are comparative for the antique particular material antenna.

113 Thermal Conductivity out of Al2O3/Water-Dependent Nanofluids: Revisiting this new Influences from pH and you can Surfactant

The present work focuses on the preparation and the stabilization of Al₂O₃-water based nanofluids. i was reading this Though they have been widely considered in the past, to the best of our knowledge, there is no clear consensus about a proper way to prepare and stabilize them by the appropriate surfactant. In this paper, a careful experimental investigation is performed to quantify the combined influence of pH and the surfactant on the stability of Al₂O₃-water based nanofluids. Two volume concentrations of nanoparticles and three nanoparticle sizes have been considered. The good preparation and stability of these nanofluids are evaluated through thermal conductivity measurements. The results show that the optimum value for the thermal conductivity is obtained mainly by controlling the pH of the mixture and surfactants are not necessary to stabilize the solution.