This research aimed to experimentally study of solar panel efficiency with water cooling. Three mono-crystalline solar panels with the capacity of 80 W (for each panel) were used for this test. The first panel was a solar panel without water cooling. The second panel was a panel with water spray cooling. The last panel was a solar panel with water drop cooling. The cooling water flow rate was varied to 50 75 and 100 LPH. From the test it was found that the temperatures of all solar panels had the similar trends. The solar panel efficiency decreased when the temperature of solar panel increases. The solar panel efficiency increased when the cooling water flow rate was increased for both of water spray cooling and water drop cooling. For all water cooling flow rates the water spray cooling solar panel performed higher efficiency than water drop cooling solar panel. The highest solar panel efficiency in this test occurred when the water spray cooling flow rate of 100 LPH.

The objectives of this study were to 1) explore problems and needs on the product brand and packaging of the sewing and craft community enterprise 2) design brand and packaging to promote products of the sewing and craft community enterprise and 3) research consumers satisfaction on the brand and packaging of the sewing and craft community enterprise of Khao Kaeo Srisomboon Thung Saliam District Sukhothai Province. This is a mixed research consisting of qualitative and quantitative research. The qualitative study was executed through related document research and visiting the area for interviewing members of community enterprises to collect basic product information operated by the community enterprise which identified problems and demands for brand and packaging via structured interviews. Quantitative research scrutinized opinions through a survey approved by five experts assessing the suitability of the brand and packaging and the satisfaction of the consumer survey. The sample groups were 100 community enterprise tourist consumers. The data obtained were analyzed by using the frequency percentage mean presented in the form of a table. The results of the study revealed as follows. 1) There were five types of products including artificial flowers womens wears souvenirs jewelry accessories and household products. Each type of product was entirely fabricated with sewing techniques. The community enterprise was in need of a new logo to be beautifully outstandingly modernly designed to be easily remembered and reflected their unique sewing. The community enterprise name also had to be included to represent Sukhothai Province a needle and a thread reel which was different from the former one that did not have the community identification. Normally the community enterprise used a clear plastic bag to pack the products; however the use of such packaging resulted did not meet up with the Community Product Standards (NIA). Also it did not attract the attention and did not add extra value to the product. It was also unfriendly to the community environment. Therefore the community enterprise would like to develop a package which its cost was economic with more eye-catching design to help make the product more attractive in addition with the information such as the name of the community enterprise phone number QR code Facebook etc. displayed on the product tag label. 2) The experts had chosen the logo number 9 showing the symbol of flicking letters writing the Community Enterprise and the province names as well as a spool of thread and a sewing needle. As for the flower package most experts chose the package number 2 showing a white paper box with the handle and a clear plastic space. In terms of the women’s wear most chose number one pattern of a brown spun cloth bag with the community logo on while the souvenir packaging number three was mostly chosen for its glossy white paper bag branded with community enterprise logo and local woven pattern (stripes) on the bag. However the experts suggested using brown paper for the reason of its lower cost. In terms of jewelry packaging the experts had chosen the third style showing a rectangular shaped white paper box packaging with the printed logo on the top cover. The experts recommended changing the color of the packaging to be more attractive. Regarding the household products the experts selected packaging number two of a brown paper bag with the community logo and local woven pattern (stripes) on the bag. 3) Most respondents’ satisfaction with the brand and the packaging revealed that they were satisfied and impressed with the creativity at the highest level with an average of 4.47. In terms of artificial flower packaging design the satisfaction was high due to the design of the packaging structure and its easy handling at the average of 4.25. The satisfaction on the graphics design of the packaging which could fitly reflect the identity of Sukhothai was at the highest level at the average of 4.25. In terms of womens wear packaging satisfaction the respondents were pleased with the design of the packaging structure which could be easily carried or picked up gaining the average of 4.35. The respondents’ satisfaction with the graphic design of the colorful and beautiful packaging was in the average of 4.34. In terms of the jewelry packaging they were satisfied with the packaging structure and its easy handling at the average of 4.32. The respondents’ satisfaction with the graphic design in the overall was consistent at the highest level of the average at 4.37. Concerning the household product packaging they were satisfied with the design of the overall packaging structure at the average of 4. 25.Finally the respondents’ satisfaction was on the design of packaging graphics pictures decorative patterns beautifully appropriate in the average of 4. 24..

Research on Restaurant Demand for Seniors in Bang Sue Dusit and Phra Nakhon Districts Bangkok The objective was to study consumer behavior of the elderly. Food demand for senior citizens in Bang Sue Dusit and Phra Nakhon districts Bangkok The population used in this study were 400 elderly people in Bang Sue Dusit and Bangkok areas. The survey instrument was a questionnaire. The statistics used were frequency frequency percentage mean standard deviation. Two-group mean difference test and One-way ANOVA Analysis of Variance. The results of the study found that most of the respondents were female. Age between 60 - 69 years marital status Most of them are working as government pensioners. and earn less than 10 000 baht. An analysis of the behavior of the elderlys restaurant use revealed that the elderlys behavior of using the restaurant when they are together with their family. The type of restaurant that the elderly use the most is national restaurant. The frequency of using the restaurant for the elderly most of the time. The elderly will go to the restaurant on Saturday - Sunday. The elderly tend to use the restaurant 2-3 people at a time. Access to restaurants more than 501 baht or more. Results of the analysis of restaurant needs for the elderly. Classified by service marketing mix it was found that the elderly had demand for restaurants classified by service marketing mix. Overall its at a high level. The elderly had the highest level of need for physical characteristics followed by personnel at the high level. and the price is at a high level respectively. The results of the hypothesis testing of restaurant demand for the elderly and demographic characteristics revealed that gender age and income were different. There are different restaurant needs for seniors. Analysis of 4Ps marketing strategy the shop must focus on producing fresh clean products and the food must be beneficial to the health of the elderly. and clear beverages suitable for the elderly in choosing to order food. Location the shop must have a convenient location for the elderly marketing promotion Organize promotional activities according to various festivals to meet the needs of the elderly. and clear beverages suitable for the elderly in choosing to order food. Location the shop must have a convenient location for the elderly marketing promotion Organize promotional activities according to various festivals to meet the needs of the elderly. and clear beverages suitable for the elderly in choosing to order food. Location the shop must have a convenient location for the elderly marketing promotion Organize promotional activities according to various festivals to meet the needs of the elderly.

Research subject Service marketing mix used to analyze restaurant business opportunities To support Chinese tourists the case study of Sathon Silom District has the objective to 1) study the service marketing mix used to analyze business opportunities in restaurants pubs and restaurants 2) to study business strategies in accordance with Chinese tourists behavior And 3) as a way to expand business opportunities For the Chinese tourists in the Sathorn Silom survey methods and data collection consists of surveying the area Uninterrupted observation And in-depth interviews Use the interview form And semi-structured questionnaires By the group of data providers which are Restaurant Pub and Restaurant Operator Chinese tourists Traders in the Sathorn Silom area specify specific selection criteria quality control data analysis triangulation. (Triangulation) inductive data analysis The research found that Service marketing mix that operators use to analyze business opportunities. Ordered by priority including 1) the service personnel 2) the service process 3) the physical characteristics of the store 4) the promotion of the market 5) the price 6) the distribution location and 7) the products for the business strategy. The research found that Most entrepreneurs use proactive strategies. Focusing on marketing promotion Especially public relations And advice from the tour guide With the operator offering a discount Sales promotion to tour leaders In order to bring relations for Chinese tourists to use the restaurant. Most entrepreneurs want government agencies Especially the Tourism Authority of Thailand (TAT) has relaxed regulations on entertainment. landmark To open more opportunities for tourism

Young coconut shells are a byproduct after processing coconut juice which can be used to produce a solid-fuel. This fuel from the coconut shell is an alternative source instead of using firewood or charcoal made of timber in the natural forest. The solid-fuel from young coconut shells was prepared by using a wet glue powder as a binder then was compressed by using a briquette machine. The black coconut briquette was stable after exposure to the sun. The average of the briquette combustion rate was at 11.24 g /min. There is no eruption smut smoke and odor by using the young coconut shell briquette yo start a fire. To sum up a young coconut shell has a high potential as an alternative biomass material for producing a briquette especially for commercial. This solution can increase the reduction of haze weather in the sight of solid waste incineration and also global warming.