Aluminum is a lightweight material which are popularly used in various parts of the industry. However there are some limitations on the tribological properties such as abrasive wear and friction when it was compared to other metals. Tribological properties of aluminium was improved with anodizing process and silicon dioxide supplement. the effect of time on surface structure and friction coefficient were studied with with scanning electron microscope and sliding wear tester. It was found that friction coefficient of aluminium was decreased after improvement process was applied.

This research aimed to study impact of demographic factors on laundry service consuming and the relationship between marketing mix and satisfaction of laundry service. Sample group were 384 laundry service customers residing in Sao Thong Hin Sub district Municipality Nonthaburi. A questionnaire was a tool which reliability of Cronbach alpha coefficient showed 0.955 with statistical analysis of Frequency Distribution Percentage Mean Standard Deviation Chi-Square and Pearson Correlation. The results shown that; The customers express their opinions on the scale of high towards every marketing mix including staff places processes prices service quality physical factors of services and marketing promotions respectively. The customers satisfy with overall marketing mix on the scale of very high ranking first the fact that staff were attentive to details. Education levels affect satisfaction level on the topic of inside and outside cleanliness of the shops. And occupation did vary satisfaction on the topic of loss and damaged garments guarantees. The factors of marketing mix including services price places marketing promotions staff processes and physical aspects of services did affect satisfaction on the marketing mix on laundry services.

This research aims to develop a road accident prevention system to reduce the risk of accident a case study of Kamsakasang Junction Non-Thai District Nakhon Ratchasima Province. The target audiences are: traffic experts and 15 civil engineers to evaluated the developed system. From the study of traffic problem and risk areas there are 7 aspects to be improved: 1) Installation of traffic light 2) Installation of lighting and changing control cabinet 3) Improvement of the traffic island 4) Changing lower traffic island to higher one 5) Painting reflecting colour and reflecting light on the edge of the island 6) Drawing traffic line 7) Installation of warning signs. From the development of accident prevention system and evaluated by the experts; the overall evaluation of the system was the best (x = 4.66 SD = 0.41). There were 6 highest rated aspects and 1 very good aspect. The highest rated were installation of Vehicle Actuated traffic light (x = 4.92 SD = 0.15). As result of the development of road accident prevention system in 2014 the accident statistics were reduced by 53.85% compared to the pre-installation period. The statistics are reduced so it can be concluded that the road accident prevention system can be used effectively and it can be applied to other risk areas.

The objective of this research improve the taxation process service KhunKaew Subdistrict Municipality Office. Quality Function Deployment: QFD is found that the standard of period operating time should be resolved by applying the principle of improving ECRS that reduce the working time of Property tax collection process. There are 6 steps of the testing process and finding the standard time with the 10-cycle times to find out about appropriate number of cycles using the Maytag table at 95% reliability and ±5% precision. The results are found that the appropriate of 13 sub-tasks number cycles times and no more than 10 cycles. Then use the average time to find out determining allowances time for determine standard time. The results after applying the ECRS principle to improve and solve problems in sub-work are found that it can reduce the number of sub-work from 13 works to 11 works and also can reduce the cycle time from 1168.88 seconds down to 633.68 seconds or 45.74%. There are reduce wasting of working process waiting times duplication of work. The result could be applied with another tax collection the similar methods and could be responses the customer requirements.

The purposes of this study were to investigate the component of information and communication technology (ICT) competency for Thai e-commerce personnel and presents The model of competency development in ICT for Thai e-Commerce personnel. The questionnaire was administered to collect quantitative data from 385 electronic business personnel samples and the in-depth interview method was applied to obtain qualitative data from 10 experts in information and communication technology from public and private sectors. The collected data were analyzed by frequency distribution percentage distribution mean standard deviation and Exploratory Factor Analysis (EFA). The results revealed three components with 47 variables of ICT competency for Thai for Thai e-commerce personnel which can describe the combined variance at 74.979 percent. Of all variables 36 variables are highly necessary to identify the competency to design and develop websites and benefit the ability to develop and improve the website according DBD Verified. Six variables refer to the competency concerning the interpersonal skill and responsibility among the personnel inside or outside the organization. Finally five other variables are responsible for the ability to carefully analyze troubles with caution.