This article presents a collection of studies relating to the development of technologies using hydrogen with compressed natural gas or Hydrogen-enriched Compressed Natural Gas (HCNG). Regarding to the issues of mixing ratio the data show that the appropriated amount of hydrogen falls between 20%-30% by volume in order to balance any tradeoff between engine performance and emissions. The equivalent ratio can be adjusted to be as low as 0.5-0.6. The ignition timingmust also be retarded (Ignition Delay) by averagely 5 degrees of crankshaft rotation to compensate for the change of burning speed. Theuse of 20%-30% of hydrogen by volume decrease both HC and NOx as compared to the use of CNG alone. In terms of the fuel system design the individually-stored gas injection system is of interest. It provides flexibility especially for the adjustment of the fuel composition for optimum ration in any operating conditions. But at present there is no commercial development of such system.

The objective of this research is to construct the appropriate forecasting model for the export quantity of concentrated latex by the three time series analysis methods which are Box-Jenkins method Winters’ multiplicative exponential smoothing method and combined forecasting method. Time series data from the website of Office of Agricultural Economics during January 1998 to February 2014 (194 values) are used and divided into two series. The first 182 values from January 1998 until February 2013 for the models prediction and the last 12 values from March 2013 until February 2014 for comparison the performance of forecasting models via the criterion of the lowest root mean squared error and the criterion of the highest correlation coefficient between existing values and forecasted values. Research findings indicated that for all forecasting methods that have been studied the most powerful method is the combined forecasting and the forecasting model is where and represent the single forecasts at time t from Box-Jenkins method and Winters’ multiplicative exponential smoothing method respectively.

This research examined the green packaging development from banana fiber for instant food products.The purposes wrer to construct approve and develop the sketch design; to develop banana fiber package prototypes that protect food products inside in order to eliminate packaging environment problems; and to save energy in package processing in the next decade.It was found that as for packaging design for instant banana food products such as stand-up pouchpaper box paper cupand zip lock paper bag the satisfaction of every factor was at a good level (4.12) and every packaging pattem conformed to the identity design in structural and graphical packaging As a result of studying structural packaging factorsthey were at an excellent satisfaction level in every packaging pattern including aesthetic and elegant packages(4.63) identity packages(4.56) and souvenir packages(4.53). The satisfaction for graphical packaging factors was at an excellent satisfaction level such as identity brand letters(4.65) and easier to recognize as follow.

The research aimed at exploring the development of thai flea markets from the Kingdom of Sukhothai to the present. Data collection was implemented by books articles researches including market and flea market documents. The development of Thai flea markets was classified into two categories: interval sequence and community lifestyle. Interval sequence was divided into parts: 1) from Pa-Sarn market to Sanamluang market 2) Sanamluaang market 3) Jatujak market and 4) markets after the economic crisis in 1997. Community lifestyle was divided into three parts:1) lifestyle and physical evidence 2) city community lifestyle: the relationship between fresh marlets and flea markets and 3) walking street markets.

This research studied combined toxicities of 4 generally found Polycyclic Aromatic Hydrocarbons (PAHs) - anthracene fluorene fluoranthene and phenanthrene – during growth of 3 legume seedlings - cow pea mungbean and longbean - planted in varied combination of PAH contaminant in soil. Results showed that mungbean growth was more sensitive to PAH co-contaminated soil than cow pea and longbean. Co-contamination of all 4 PAHs was more toxic to legume than each pair of PAHs. Shoot length and fresh weight of legume seedling were more sensitive to co-contamination of all 4 PAHs than root length. Dry weight of legume seedling was the least sensitive to co-contamination of all PAHs.