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Browsing by Author "eng@rmutp.ac.th"

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Browsing by Author "eng@rmutp.ac.th"

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  • Nithisopa, K.; Nakasuwan, J.; Songthanapitak, N.; Anantrasirichai, N.; Wakabayashi, T. (PIERS Online, 2007)
    In this paper, a CPW-fed slot antenna for wideband application was designed and simulated. In order to examine the performances of this antenna, a prototype was designed at frequency 2.4 GHz and simulated with various width ...
  • Chulvanich, C.; Nakasuwan, J.; Songthanapitak, N.; Anantrasirichai, N.; Wakabayashi, T. (PIERS Online, 2007)
    The narrow slot loop antenna and linear slot antenna fed by microstrip line are designed for dual frequency at 2.44 GHz and 5.25 GHz on the standard of IEEE 802.11b/g (2.4{2.4835 GHz), IEEE 802.11j/a (5.15{5.35 GHz), and ...
  • Phanthuna, Nattapong; Srisongkram, Warunee; Pasuk, Sunya; Trongtirakul, Thaweesak (World Scientific and Engineering Academy and Society (WSEAS), 2009)
    This research aim to improve a combustion system of boiler within increase combustion efficiency and use all out of the energy. The large boilers were used in the industrial factories which consume a lot of energy for ...
  • Wirotcheewan, Prasert (2008)
    The objective of this research is to study the factors of resource and investment affecting to the number of post graduate students of Rajamangala University of Technology Phra Nakorn. The samples of this research are to ...
  • Puangcharoenchai, Somjin (2007)
    Now a day the mostly air condition are use the air for reducing the temperature at the condenser unit. Moreover, many dusts are adhering in area of fin coil. From this reason, the heart reduction efficiency is decreased ...
  • Nedphograw, Supawud; Phupha, Vallop; Boonchiam, Paisan (ISH 2007, 2007-08-27)
    This paper presents a testing of three insulators namely solid, fluid and gas for choosing the best electric insulators. In order to generate the ozone gas, the insulator must be selected in electrode set. Nowadays, the ...
  • Seewattanapon, Somporn; Wattakeekamthorn, Thanakit; Somwong, Tanee; Akkaraekthalin, Prayoot (IEEE ECTI-CON 2008, 2008-07-23)
    A microstrip folded ring resonator sensor for measurement of dielectric constant in a compact area of material under test is proposed. The resonant characteristics of resonator vary with dielectric constant of material. ...
  • Suwantaroj, Kullayot (2010-02-28)
    The objective of this paper is to design and develope solar hybrid oven for common usage heat energy between sunshine and heater. The technology improvement of integrated solar dryer cabinet aims to prove that the solar ...
  • Charlangsut, Aroon; Boonthienthong, Manat; Thongkeaw, Somkieat; Boonchiam, Paisan (ISH 2007, 2008-08-27)
    This paper proposes a study of an Ozone generator. The generator under the study is designed using the electrode with uniform field. The electrode is constructed in the plane shape with positive potential. The transformer ...
  • Puangcharoenchai, Somjin (2007)
    Now a day the mostly air condition are use vapor compression refrigeration system in which R-22 refrigerant is used as a working substance. From the results of study, it found that the quantity of water vapor or moisture ...

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