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"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)."

"ABSTRAKRural Next Generation Networks (R-NGN) technology allows Internet Protocol (IP) based systems to be used in rural areas. This paper reports a testbed of R-NGN that uses low cost Ethernet radio links, combined with media gateways and a softwitch. The network consists of point-to-point IP Ethernet 2.4 GHz wireless link, IP switches and gateways in each community, standard copper wires and telephone sets for users. "

"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. "