HV power distribution system circuit breaker are important devices in substations. Such as Malfunction or deterioration of equipment with in the substation will directing impact on the stability of the power distribution system and affect the reliability of the system. In addition this means that it is necessary to assess the actual condition of the proper condition-based operation and maintenance. Thus this thesis presents condition assessment procedure for equipment by using technical information visual inspection by Weighted Scoring Method. Weighting technique is used to determine important weight testing methods of devices by using Analytic Hierarchy Process (AHP). Testing methods for circuit breaker are such as visual inspection contact timing test. Scoring technique is divided into 1-3 levels by classifying on actual evaluate equipment consisting of consisting of good moderate bad. This thesis proposes a software development in order to organize the database and calculate the analysis of the condition of equipment in 5 HV substations. The evaluation results will be divided into 3 levels good medium and bad condition. According to the evaluation level the maintenance types are separated into 1) regular maintenance 2) increase the frequency of maintenance and monitoring of the test 3) equipment must be improved urgently. Finally abnormal incidents of equipment and cost of HV equipment maintenance can be reduced in effective way.

The objectives of the project study were to 1) create the treasure hunting in a real ancient ruin simulation game 2) evaluate suitability of the treasure hunting in a real ancient ruin simulation game and 3) assess satisfaction of game players to the game. The data collected by selective method consisted of 2 sample groups including 3 experts to evaluate suitability of the game who were specialist about 3D VR Game Design and History and 30 game players the treasure hunting in a real ancient ruin simulation game who were ages between of 15-35 years. Statistical data analysis was mean and standard deviation. The results showed that the treasure hunting in a real ancient ruin simulation game overall satisfaction was at a high level (𝒙̅=3.83 S.D.=0.50). Players of the treasure hunting in a real ancient ruin simulation game had overall satisfaction was at a high level (𝒙̅=4.35 S.D.=0.65).

This research aims to study 1) personal factors affecting confectionery brand loyalty 2) and the service marketing mix factors affecting confectionery brand loyalty. The service marketing mix can be used to create a change in consumer behavior to buy and drive subsequent purchases. Samples were drawn from a population aged between 15-60 years in Bangkok for 400 people sampling. The data collection was done by an interview with questionnaires. The statistics used to analyze the data were descriptive statistics like mean and standard deviation while inferential statistical analysis was T-test F-test and regressing analysis. The results were as follows: 1) most samples were female with Bachelors degrees single status private employee status and a monthly income of 10001-15000 baht. 2) Service marketing mix factors had a high impact on brand loyalty. If sorted in descending orders those are product personnel and process respectively. 3) Demographic factors affecting the brand loyalty of dessert when different levels of education had different effects on purchasing intention and complaint behavior while tested statistically significant at the 0.05 level. 4) The statistical correlation tested in the service marketing mix found a relationship with brand loyalty in all aspects of the services marketing mix with confectionery. The most correlated values were physical components at a moderate level followed by marketing promotion and distribution at an average level. Personnel products and prices had an effect at low levels respectively.

Thailand is a country where passenger cars up to 7 people the specified cylinder capacity does not exceed 1500 CC. Most used in Bangkok which is a popular vehicle. Therefore this type of vehicle was chosen to collect data to study behavior and create a driving cycle the selection of the data collection route includes: Ratchadaphisek Road - Rama IV Road Phaholyothin Road and Rama III Road - Narathiwat Road etc. Which the road is in the business district which has a heavy traffic volume. At present there is an epidemic of Covid-19 the government therefore has measures to lockdown. It affects the traffic conditions greatly compared to the normal situation. Therefore data collection was performed on-board measurement. and grouping the time series clustering. In the part of the equipment used to store data including : KYOWA Model EDX-200A It is a highly accurate data storage device. by connecting to Global Positioning System: GPS sensor and connect to notebook The results of the data collection to create a driving cycle of 3 routes in the morning and evening (Peak time).It was found that most of the speed patterns used to create driving cycles were low speed patterns. The frequency of the speed range is close to the real driving and the speed range is in the range of 0-10 km/h. Which show that the traffic conditions on 3 routes are very dense. but driving in some parts can use speed and have the following movement patterns including : acceleration decelerationconstant speed stationary. Each route has different values.

This Project presents electric bicycle. The structural feature is the use of the bicycle to be modified as it is designed to spin the rotor of the 5-phase magnetic line generator set and test the voltage distribution. The principle of operation of electric bicycles relies on the mechanical energy gained from cycling. The rotor consists of a series of permanent magnetic poles intersecting with a stator consisting of a set of conductor coils generating an AC voltage and converting it from AC to DC through a diode bridge to obtain DC voltage. To be connected to the boost converter to increase the output side pressure level to get the right voltage to charge a 12 volt battery. batteries. The test has been tested for cycling to generate electricity at a speed of 400 rpm while no-load has a voltage of 23.3 volt and with a load per load and at a speed of 400 rpm the voltage is 12.1 volt If the bicycle is cycled at an increased speed the voltage and current will increase. In order to transmit electric power to the single-phase power system an inverter is used to connect the single-phase power system to transmit to the single-phase power grid.