In this paper a CPW-fed slot antenna for wideband application was designed and simulated. In order to examine the performances of this antenna a prototype was designed at frequency 2.4 GHz and simulated with various width of slot antenna in both sides for input impedances matching and simulated by IE3D software package of Zeland. The simulation result of bandwidth is 1.65 GHz (2.1{3.75 GHz) which covers the standard frequency of IEEE 802.11 b/g (2.4{2.4835 GHz) and Wimax (2.3{3.6 GHz). With these performances the proposed antenna can be used in wideband applications.

Project name Scientific Equipment and Service System on WebApplication purpose 1. To develop a tool booking system 2. To evaluate the efficiency of the tool reservation system. 3. To evaluate the satisfaction of the tool reservation system The system has been developed in the form of a web application. To create a database system for storing information of various tools booking information and other information Systematically With the access rights of the system users in 3 parts: the administrator Membership section And parts of general users The tools used for system development are PHP and My SQL. For evaluating the satisfaction of use Scientific Equipment and Service System on WebApplication. The results showed that The overall satisfaction level per system is at a good level. Average total with 4.46. Found that the work efficiency was the first satisfaction With a satisfactory level of satisfaction With an average of 4.51. Secondly is the design of the user system With a high level of satisfaction With an average of 4.47. Secondly the selection of technology in system development has a good level of satisfaction. With a total average of 4.41. In conclusion Scientific Equipment and Service System on WebApplication Can be applied effectively

This thesis discusses the development of the result of the motion detection of a person using the system sending the image signal and the character derived from the camera (Pi camera) to send a notification of personal space invasion via Using raspberry pi Zero w is a data management system that is received from the Motion Sensor in conjunction with the Raspberry camera and has stored JPEG images received from the camera to process the data sent into the Line Server for Users can send images via Line Application party monitoring intrusion into personal space

The solar chimney power plant (SCPP) has been proposed as a promising alternative power plant. According to the literature the chimney for commercial-scale SCPPs should be about 1 km high. The construction of these tall chimneys is very challenging and the construction cost is enormous. The sloped solar chimney power plant (SSCPP) is a variation of the SCPP. One of the SSCPP’s prominent feature is that its collector is sloped and then its chimney can be shorter than that of the SCPP. This leads to a lower investment cost of SSCPPs compared with that of SCPPs. Also previous studies show that the industrial waste heat potential of Thailand is considerable and should be investigated. As a result this study developed a mathematical model for designing a sloped solar chimney power plant powered by industrial waste heat (SSCPP-WH). The model was justified by validation using experimental data. Then several SSCPPs with different geometrical dimensions were simulated to determine a proper dimension that has the lowest levelized cost of electricity (LCOE). It was found that the LCOE is about 0.14 USD/kWh the payback period is about 11 years system efficiency of 1.3% and collector efficiency of 36%. for an SSCPP-WH with a collector area of 49000 m2 chimney height of 45m flow area ratio between solar collector inlet and solar collector outlet (AR12) of 14 and waste heat of 10 MW. It was also found that the payback period of SSCPP with no supplied waste heat is lower than that of some SSCPP-WHs. To make sure that the payback period for the SSCPP-WH is faster than that of SSCPP with no waste heat a ratio of the supplied waste heat to the absorbed solar energy of the SSCPP-WH must be greater than 0.34.