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ผลงานตีพิมพ์ในวารสารวิชาการEstimation of daily solar radiation from sunshine duration in Thailandผู้แต่ง: Watanabe, S., Komori, D., Aoki, M., Kim, W.,  Dr.Samakkee Boonyawat, Associate Professor , Dr.Piyapong Tongdeenok, Assistant Professor , Prakarnrat, S., Baimoung, S., วารสาร:  
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ผลงานตีพิมพ์ในวารสารวิชาการEffect of Solar Radiation on Cyanobacteria Bloom in Oxidation Ponds Community Wastewater Treatment at the King’s Royally Initiated Laem Phak Bia Environmental Research and Development Project, Phetchaburi, Thailandผู้แต่ง:สุดาพร สุขจินดา, Dr.Surat Bualert, Assistant Professor, Dr.Onanong Phewnil, Assistant Professor, Dr.THANIT PATTAMAPITOON, Lecturer, มัลลิกา ศรีชมภู, วารสาร: |
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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : The Influence of Atmospheric Aerosol on Solar Radiation Degradation in Each Region of Thailand) ผู้เขียน:Prapatsorn Yodsa-nga, ดร.สามัคคี บุณยะวัฒน์, รองศาสตราจารย์, วีระศักดิ์ อุดมโชค, ประเสริฐ อังสุรัตน์ สื่อสิ่งพิมพ์:pdf AbstractThe analyses on the influence of atmospheric aerosol using solar radiation and meteorological data, during January-December 2004 from twenty agro-meteorological and meteorological stations were carried out. The investigation was based on the comparison of solar radiation obtained from measurement. It was found that the highest monthly solar radiation due to aerosols in the atmosphere with aerosol on clear sky day amount during April was about 23 %. While the monthly average depletion of solar radiation occurred in the North, Central, North-East and South were about 21.76 %, 20.71 %, 17.16 % and 13.10% respectively. Statistical analysis by F-test comparison on the regional of solar radiation depletion was found that Northern, North-Eastern and Southern were significantly different at 95% confidence level except in the North and Central, which was found to be non-significantly different at 95%.The solar radiation depletion due to aerosols in the atmosphere during summer solstice (April- May) and rainy solstice in Thailand (July-September) indicated that the solar radiation depletion during the summer solstice was about 18 %, which was greater than the one during the rainy solstice which was about 11 % due to the forest fire during summer season. |
หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Estimation of Solar Radiation Use Efficiency in Paddy and Cassava Fields) ผู้เขียน:สิริพันธุ์ ลีพิพัฒน์ไพบูลย์, ดร.สามัคคี บุณยะวัฒน์, รองศาสตราจารย์, ดร.เอ็จ สโรบล, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractThe estimation of solar radiation use efficiency in rice and cassava fields was studied in Sukhothai and Nakhon Ratchasima provinces, during November 2004 to January 2006. Crop growth was divided into three periods of cultivation: early vegetative, actively growing and before harvesting. The objectives of the study were to: 1) compare the radiation use efficiency (RUE) between rice and cassava; and 2) study the relationship between biomass and absorbed photosynthetically active radiation (PARa). The results of the experiment may be used as basic data for studying the energy balance of other watershed areas with different land uses. The comparison of photosynthetically active radiation (PAR) between cassava and rice revealed that PARa in cassava was higher than in rice. In a cassava crop, the greatest value (10.99 MJm-2) of daily PARa was obtained during the actively growing period, with an average PARa of 8.98 MJ m-2 and a radiation use efficiency (RUE) of 1.09–4.42 g MJ-1. Similarly, in a rice crop, the greatest value (9.53 MJ m-2) of daily PARa was observed during the actively growing period, with an average PARa of 6.41 MJ m-2 and an RUE of 0.58–0.66 g MJ-1. PARa in the cassava crop, however, was higher than in the paddy field. The relationships between total biomass and PARa in the paddy and cassava crops were linear with R2 values of 0.97 and 0.89, respectively. |
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