Ground grid design of substation is very important. It will help prevent the danger caused by the fault which causes the high step voltage and high touch voltage and may cause the operator to die. It also helps prevent damage to equipment and increases reliability for power systems as well. Currently the Gas Insulated Substation (GIS) has been built a lot especially in areas with limited space because it takes less space than the Air Insulated Substation (AIS). In order to create a substation of the GIS model instead of the AIS model. In order to create the GIS instead of AIS including the improvement or maintenance of the substation it is necessary to build another small substation to supply electricity to replace electricity from the original substation. However there are two substation stations in the same area may cause an increase of high-slope ground potential between the ground grid systems of both substations. It will cause high step voltage and high touch voltage while the fault is diminished. Therefore before improvement or maintenance of substation the ground grid distance and the size of the newly constructed substation must be analyzed that what effect on step voltage and touch voltage generation. Including studying the effects of step voltage and touch voltage that will occur.

Metaheuristic optimization approach has become the new framework for control synthesis. The main purposed of the control design are input (command) tracking and load (disturbance) regulating. This research proposes an optimal proportional-derivative (PID) controller design for the brushless dc (BLDC) motor speed control system with input tracking and load regulating constrained optimization by using the cuckoo search (CuS) one of the most efficient population-based metaheuristic optimization techniques. The sum-squared error between population-based metaheuristic optimization techniques. The sum-squared error between the referent input and the controlled output is set as the objective function to be minimized. The rise time the maximum overshoot settling time and steady-state error are set as inequality constraints for tracking purpose while the regulating time and the maximum overshoot of load regulation are set as inequality constraints for regulating purpose. Results obtained by the CuS will be compared with those obtained by the particle swarm optimization (PSO) and genetic algorithm (GA). From simulation results it was found that the parameters of CuS were optimal than both PSO and GA for BLDC motor speed control system satisfying the preset input tracking and load regulating constraints. In addition the simulation results are confirmed by the experimental ones from the BLDC motor speed control system developed in the laboratory.

The objective of this study 1) To study the shape of the template from the process of making basketry 2) To design a template hyacinth wicker products creative products 3) To test the woven pattern of water hyacinth wicker 4) To create a unique product that is more valuable to the local wisdom and value. Consumerism toward the development of water hyacinth wicker patterns. By specifying a sample group of 57 people. The tools used in the research consisted of the satisfaction questionnaire on the template pattern water hyacinth weave basketry to local creative concept product. The results of the design of the water hyacinth wicker pattern design to the product of local identity concept found that the design shape can be a shape that has a concept as a creative product. Form 1 wicker-shaped pattern template from water hyacinth leaves The product is a chair with an average of 4.58 Form 2 template oval shaped wicker basket shape. The product was a basket of legs with an average of 4.48 Form 3 basket shaped shape from the bowl shape the product received the basket has a value of 4.22. All 3 forms that can be developed in the form of products that can satisfy level most satisfactory shape is the molds for Basketry 1. The product is a chair that is beautiful the proportion of products is suitable for use and strong products are local and creative in the process of water hyacinth wicker requires a template for forming. The original material used to make the wicker template is plywood or foam material. During the study phase the researcher invented the material for making water hyacinth woven basket template using rubber water mixed with plastic watercolor foamed foam templates are used for easy handling and longer durability.

This project was to case study: the pet dog pattern of His Majesty King Rama the 9th to embroidery design on the product. The purpose of this project was to study the pattern technique from 10 needles of single head embroidery machine and could embroidered pattern on the product. The dog pattern was the main pattern design and embroidered on indigo dyed fabric in Sakon Nakhon province. Then the bag prototype from indigo dyed fabric added the value to the indigo-dyed cotton product of villagers in the community. After that the questionnaire was to a sample. It found that the dog pattern design as a model that needed the most in this society. The satisfaction evaluation of textile product design with the dog pattern design was embroidered from 10 needles of single head embroidery machine on cotton indigo dyed fabric in Sakon Nakhon province with the inspiration came from the pet dog of His Majesty King Rama the 9th in the good lovingly of the pet dog named Khun Thong Dang. The product would reflect the nature of life on the earth as much as possible. The pattern of behavior pattern brought a playful dog. It looked like the natural that was suitable used for the pattern. The pattern was appropriate position. The material and color used the most suitable natural indigo dyed cotton product. The indigo colors were from nature. They were not harmful to life on the earth. The bag usage had the most suitable shape at 47 percent. The embroidered dog pattern bag product was the most durable to use at 43 percent.

The purposes of this study were to develop a video presentation about the fashion series of the faculty of textile industry and fashion design for publicize to the Faculty of Testile Industry and issue fashion and to satisfaction to the media audience develop a video presentation on the fashion series of the faculty of textile Industry and Design. The fashion part by using the sample group to evaluate the satisfaction of the media questionnaire was the general public who came to watch the video presentation at the fashion show of the grade 4 students fashion series of the faculty of textile Industry and fashion Design Rajamangala University of Technology Phra Nakhon from 50 people. The data analysis was frequency percentage mean and standard deviation. The study indicated that satisfaction with the video presented on the fashion series of the faculty of textile Industry and fashion Design was at a high level (=4.22). When considering each aspect it was found that content satisfied was at a high level (=4.12) and the presentation aspect was satisfied at a high level(=4.33)