This research aims to study the development of the Para rubber press machine with wrought pattern for continued 2-year project. Used natural Para rubber mixed in ta-Kuong by normally practical Para rubber farmers to evaluate the rubber press machine. It has developed the 11 roller the 3 plain duo sets of normal press rollers and the 2 duo sets of wrought rubber press rollers with the induction motor at 1430 rpm. The rotating transmission based on belts and chains. The evaluated results produced the dried Para rubber sheets thickness at 3.75 mm. on average as standard market need. From a robber sheet with enough patted on with a worker to carry the ta-Kuong to a top tray and a rubber press man to put the Para rubber piece to a machine on average the completed 185 wrought rubber sheets per hour in shorter time.

The purpose of this research is to improve the physical and mechanicalqualities of natural rubber latex tiles. Water: surfactant: surfactant: 1: 2.75: 0.03: 0.30:0.03: 0.04 by weight and added with natural latex. In the ratio of Portland Cement Type 1: Natural Latex is 1: 0 1: 0.025 1: 0.05 1: 0.075 and 1: 0.10. Formed with compression presses at normal temperatures it was found that the optimum amount of natural latex For concrete reinforced concrete tiles the ratio is 1: 0.025. The tests in accordance with Thai Industrial Standard TIS 535-2556 are tested in 4 aspects. Dimensional stress test Water absorption test And waterproofness testing The value has passed the benchmark. And low thermal conductivity. Increasing the insulation of the roof as well. Can be used as a prototype product tile concrete roof natural latex. To produce commercially And there can be many local latex or rubber latex. To be more useful and valuable.

This research is aimed at studying the development of strong and high strength fiberboard from coconut fiber and corn plant. This is the second consecutive year by using natural latex. To enhance thermal insulation performance. By using the cement ratio: fine sand: coconut pulp: corn fiber: water: surfactant: surfactant is 1: 0.2: 0.0125: 0.0375: 0.3: 0.03: 0.04 by weight Then add natural rubber latex at cement ratio: 5: 1 ratio of natural rubber latex: 1: 0.05 1: 0.10 1: 0.15 1: 0.20 and 1: 0.25 by weight tested in accordance with TIS 878- 2537 on cement slabs. : High density the test results show that the ratio of 1: 0.05 is the fiber cement ratio. The most appropriate the amount of natural latex said. Can make fiber Cement sheets. Best compression and bending strength. And has passed the standard TIS 878-2537 cement fiberboard developed this can help reduce the amount of natural latex is very high. And have a good thermal insulation properties

The objectives of this research were (1) to study media exposure behavior of technology technology learning behavior technology using behavior in daily life and self-development of elderlies in Bangkok (2) to compare between demography and self-development of elderlies in social network and (3) to study effects of factors to self-development in social network of the elderlies in Bangkok. The data were collected from 400 elders who were elderly 60 years and over residing in Bangkok Metropolitans. Data analysis employed frequency percentage arithmetic mean (X) standard deviation (S.D.). Statistics used for hypothesis testing included chi-square t-test One-way Analysis of Variance and multiple regressions. The results of study showed that:

The purposes of the study were 1) to study the ethical characteristics of mass communication students in the digital era 2) to study factors influenced to ethical characteristics of mass communication students (MCS) 3) to analyze the confirmatory factor analysis (CFA) of ethical characteristics of MCS based-on Thai qualifications framework for higher education (TQF) 4) to develop and empirically validate the causal model of the factors influenced to ethical characteristics of MCS based-on TQF. The data was collected from 16 experts and 800 simples including mass communication officers and mass communication and communication arts instructors. Data was analyzed by frequency percentage mean standard deviation (S.D.) stepwise multiple regression analysis confirmatory factor analysis and part analysis. The results showed as follows: