The objectives of this research were 1) to investigate food ordering behavior through online applications 2) to study Food-Based Dietary Guidelines affecting food ordering through online applications 3) to study decision-making process affecting the process of choosing to order food through online applications 4) to compare decisionmaking process for food ordering through online applications classified by personal factors and 5) to study the relationship between Food-Based Dietary Guidelines and food ordering decision-making process through online applications of high school students in the Secondary Educational Service Area Office 1 under new normal. This study was a quantitative research. The sample was 400 high school students at extralarge secondary school under the Secondary Educational Service Area Office 1 Bangkok. The sample had at least once to order food through online applications. A questionnaire was used as a research instrument for data collection. Data were then analyzed using statistics including frequency percentage mean standard deviation t-Test and F-Test and Pearsons correlation coefficient. The results of this research indicated that most of the respondents werefemale aged 16 currently studying at Mathayomsuksa 4 level and under the schoolgroup 1. In terms of food ordering behavior through online applications under the newnormal it was found that the students used to order food through the online GrabFood application the most. The most ordered food was savory food and paid attention to the cleanliness of food and the safety of the selected food as well as the freshness of the food. The food was mostly ordered on Sundays. The average cost was about 101-200 baht per time. The respondents made their own decisions to buy food and the reason for deciding to order food was to have the food delivered quickly. For the importance of Food-Based Dietary Guidelines affecting food orderingthrough online application under a new normal. Overall importance level of Food-Based Dietary Guidelines affecting food ordering decision through online applicationsunder new normal was at the moderate level. When considering each aspect sevenitems were at a high level one item was at low level and the other one is at thelowest level. The level of importance of the decision-making process affecting theselection of online food ordering applications under the new lifestyle base was foundthat the overall importance was at a high level. For each aspect it was found at thehighest level in 2 aspects and at a high level in 3 aspects. The results of the comparisonof the decision-making process for food ordering through online applications under the new normal classified by personal factors it was found that the respondents with different gender and affiliated school had different decision for food ordering through online applications with a statistical significance level of 0.05. The results of analysis of the relationship between Food-Based Dietary Guidelines and food ordering decisionmaking process through online applications of high school students in the Secondary Education Area Office 1 under the new normal indicated that two variables had negative relationship at a low level. When considering each aspect it was found that the four variables had a low relationship and in the same direction as follows: eating food that was clean and free from contamination followed by eating a lot of vegetables eat fruit regularly eat fish lean meats eggs and legumes. Eating foods that were moderately fat. The results also found that five variables of the Food-Based Dietary Guidelines were associated with low levels of correlation in the opposite direction as follows: avoid eating foods that are very sweet and salty consumption of a wide variety of nutritious foods from the five food groups always take care of your body weight drinking milk according to age abstain or reduce alcoholic beverages eat rice as a staple food alternating with some starchy foods respectively.

This research is a quantitative research. That have the objective to study 1)demographic characteristic affecting on purchasing decision through JD Centralapplication 2) online marketing communication affecting on purchasing decision through JD Central application. The sample is customers who purchase products through the JD Central application of 400 persons. The researcher selected purposive sampling by using questionnaires with the reliability of each variable between .906 - .949. Statistics used to analyze data were frequency percentage mean standard deviation one - way analysis of variance and multiple regression analysis with a statistical significance level of .05. The results showed that 1) most of the respondents were male 54.00 percent age between 18 - 31 71.00 percent bachelor’s degree 66.50 percent status of single people 71.75 percent sudents 36.25 percent Income/month less than 15000 baht 36.50 percent and family size 3 - 4 people 54.50 percent 2) demographic characteristics affecting on purchasing decision through JD Central application with a statistical significance of .05 were education levels 3) online marketing communication affecting on purchasing decision through JD Central application with a statistical significance of .05 were Website Twitter and Facebook.

This research was a quantitative research. The purposes of this research were 1) to study demographic characteristic affect on purchasing intentio n of beauty products in Multi-Brand Store 2) to examine online marketing communication affects on purchasing intention of beauty products in Multi-Brand Store and 3) to examine Brand Equity affects on purchasing intention of beauty products in Multi-Brand Store. The data were collected 400 samples who were customers to purchase products through in Multi-Brand Store. The statistical methods used to analyze data were frequency percentage mean standard deviation one-way analisis of variance and enter multiple regression analysis with a statistical significance level of .05. The results showed that: most of the respondents were female (69.50%) the age between 27-32 years (58. 30 %) education of bachelor’s degree (77. 5 0%) business of employee (56.80%) and average monthly income between 15001 – 30000 baht (61. 00 %). Diffenct Demographic characteristics included gender age career and average monthly income had purchasing decision intention of beauty products in Multi-Brand Store with statistically significant at the .05 level. Marketing mix affects on purchasing decision intention of beauty products in Multi-Brand Store with statistically significant at the .05 level with the two affects including product increased (17.80%) price increased by 22.10 percent. Brand equity affects on purchasing decision intention of beauty products in Multi-Brand Store with statistically significant at the .05 level with the two affects including brand awareness increased by 3 0 . 3 0 percent and brand associations increased by 33.30 percent

This special project has purposes to 1) To study factors that inspire people to cosplay 2) To create the book and e-book of cosplay inspiration 3) To study people’s satisfaction over the book and e-book of cosplay inspiration and applying the working method for the future use. From this study we found factors that inspire people to cosplay which are 1) watching cartoons and playing video games 2) other people’s persuasion to cosplay with them 3) studying from other Thai and foreign cosplayers 4) joining cosplay activity and other factors. From the survey of satisfaction that we analyzed statistically we found that readers have high satisfaction rate with the average 4.76 (SD=0.57).

This paper proposes the bidirectional resonant converter with duty cycle voltage control using for CCTV with solar energy. The converter designed at 20 KHz for 20 W with 92.85 % of efficiency is operated at zero voltage switch mode for reducing the losses of converter. The modes of operation divide in two modes for operating bidirectional current. The first part is buck mode which has 5 volt at the output voltage and second is boost mode which has 8 volt at the output voltage. The two operation modes of converter will be discussed in this paper.