The Purposes of this research were to study demographic characteristics and marketing communications toward Bike for Dad participation in Bangkok on December 11 2015. A total of 99999 people registered to join this cycling event in 11 areas throughout Bangkok. This is a quantitative research so that questionnaire is applied to 400 people in 6 event area in Bangkok. The research revealed that most of the respondents were female whose age was 36-59 years old and marital status was single. They were employees of private companies that had income THB 10000 – 20000. In marketing communications the research found that public relations and event promotion appeared to have a positive impact on the participation of Bike for Dad in Bangkok. Namely public relations and promotional. Finding also indicates that there are 5 significant results of people to participate in the event: constancy congruity cooperation constitution and cycling. In term of practical contributions this study provides a useful marketing communication idea for Bike for Dad in Bangkok. In the light of the results state agency can utilize these findings for strategic planning of marketing communication in Bike for Dad or other relevant activities in the future.

A disc brake is one of important auto parts for motorbike cycle industry which effected directly to life safety. As the result this project aims to test the performance of the disc brake in order to study the physical disc brake that effects to braking distance and to be an alternative for testing the brake disc. The braking performance tester was designed and created in the single dynamometer which was not over 10 Hp and the 17of inertia .70 kg. m. Referring to testing state of JASO T204:2001 standard this tester focused on testing the 3 different types of disc brake i.e. normal type grooving type and perforated type. The tested temperature was at normal state of the brake disc temperature (60° C - 80° C) and at high state (more than 100° C). The braking force from 9.81 N to 34.33 N at master cylinder was tested. moments was not over 92 The result revealed that at normal temperature the braking performance of the three disc brakes (normal type grooving type and perforated type) was at 17.76 21.80 and 19.00 per 1 mrespectively. However the brake performance at high temperature was at 14.41 18.06 and 18.93 per 1 m. This meant that the most efficient disc brake at normal temperature was grooving type of disc brake which was 22.74% different from normal type of disc brake. Nevertheless; the perforated type of disc brake was the most performance disc brake at high temperature which was different from normal type of disc brake at 25.32% 2 of contact surface areas 2 of contact surface areas respectively2m/s2m/s

Private design project for tourists around the Rattanakosin Island researchers have been studying the various documents and research. It led to the design process. Researchers have taken the concept in the design with emphasis on the beauty. To promote tourism. Energy savings. And consistent with the environment around Rattanakosin Island. As well as the comfort of the driver or the traffic on my sidewalk. The development of the bike park to park in the inclination to narrow the width of the base. Beam for more. Handle the bike is in the 140-150 cm in the eyes of the park. I do not have a roof level (that is 2 meters) at the car park at the wheel along with the pressure curve. Hands are placed in 140 cm and the car just to hang on the beam with a height of 170 cm but the car is not perpendicular to the ground because the balance of the car at hand. The car is tilted about 60 degrees the width of 160 cm from the principles already mentioned. We made sure the bike is a beauty and a functional purpose. Analyzing data from the query as follows. - Status (those who use bicycles in the city and tourism) are male than female 68 percent are between 21-30 years of age are 43 percent in undergraduate education is 61 percent. 5000-10000 baht in revenue and a 38 percent majority of the employees 31percent.