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"ABSTRACTResearchers have started focusing their research on alternative fuels. During the last two decades, Dimethyl Ether (DME) has emerged as a new potential fuel to subtitute for oil and its derivatives. Raw materials for DME from sources such as coal, biomass, natural gas and also crude oil are spread all over the world so the interest is growing for using it as an energy source. While the technology for processing raw materials into DME is well established, the technology for DME applications for a wide range of usages is still being developed. The range of DME usage includes for automotive purposes, in industrial sectors, for household applications, and there is even fundamental research to discover more knowledge about DME safety and another technical considerations. Many research activities are now intensively been used to develop the technology for DME application. Some opportunities for discovering more application are also discussed in this paper."

"ABSTRAK A significant share of the U.S federal R&D budget is devoted to large-scale, complex technological system commonly referred to as "big science". Over the last two decades, these systems have continued to grow in size, complexity, development time, and cost. At the same time, political changes in the US, particulary the concern over goverment spending and the federal budget deficit, have made it more difficult for proponents to secure and preserve support for these programs over their (increasingly long) lifetimes. Using the U.S space shuttle and space station programs as examples, the article shows that the political requirements for obtaining approval and funding for large and expensive research and development projects create conditions that reduce the likelihood that they will succeed technologically. The problems of technology-based projects like those of the US space program are in fact deeply rooted in the American political process itself. "

"Thammasat International Journal of Science and Technology (TIJSAT) contains original research articles, review articles, and short communications. The objectives are to publicize and promote the research contributions and innovative works in the fields associated with science and technology. Areas covered include:1. Biological sciences such as biology, zoology, botany, genetics, agriculture, ecology.2. Engineering such as electrical engineering, chemical engineering, civil engineering, environmental engineering, computer engineering; and information technology.3. Health sciences such as medicine, dentistry, veterinary, pharmacy, physical therapy, nursing, public health.4. Physical sciences such as chemistry, physics, mathematics, statistics.The journal is published 4 issues per year No.1 January-March, No.2 April-June, No.3 July-September and No.4 October-December.Thammasat International Journal of Science and Technology is currently indexed in both national and international electronic/online databases, namely, Thai-Journal Citation Index (TCI) Tier 1, Thai Journals Online (ThaiJO), ASEAN Citation Index (ACI), Elektronische Zeitschriftenbibliothek (EZB)."