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ผลงานตีพิมพ์ในวารสารวิชาการParticulate Matter size distribution in the exhaust gas of a modern diesel Engine fuelled with a biodiesel blendผู้แต่ง: Dr.Sathaporn Chuepeng, Associate Professor ,  Xu, HM, Tsolakis, A, Wyszynski, M, Price, P, วารสาร: 
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ผลงานตีพิมพ์ในวารสารวิชาการParticle size distribution of nano-mist in a spinach-storage atmosphere and its effect on respiration and qualitiesผู้แต่ง:Dr.Soraya Saenmuang, Assistant Professor , Al-Haq, M.I., Makino, Y., Kawagoe, Y., Oshita, S., วารสาร:   |
 ที่มา:วิศวกรรมสาร มข.หัวเรื่อง:การกระจายตัวของขนาดเม็ดทรายบริเวณชายหาดชะอำ |
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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Relationship between Soil Property and the Aggregation of Tropical Forest Soils in Thailand) ผู้เขียน:Wanrapee Suwanprapa, ดร.สมชัย อนุสนธิ์พรเพิ่ม, รองศาสตราจารย์ , ดร.ศุภิฌา ธนะจิตต์, รองศาสตราจารย์ , ดร.เอิบ เขียวรื่นรมณ์, ศาสตราจารย์เกียรติคุณ สื่อสิ่งพิมพ์:pdf AbstractThe aggregate size distribution and its relationships with other soil properties were determined in eight soils under different tropical forest types: secondary mixed deciduous forest, dry dipterocarp forest, dry evergreen forest and an ecotone zone. The aggregate stability of individual aggregate size fractions WSA1 to WSA6 were determined by a wet-sieving method as: 2 mm ? WSA1 <8 mm; 1 mm ? WSA2 < 2 mm; 0.5 mm ? WSA3 < 1 mm; 0.25 mm ? WSA4 < 0.5 mm ; 0.1 mm ? WSA5 < 0.25 mm; and WSA6 < 0.10 mm.. They were moderately shallow to very deep and slightly to strongly acidic. The soil texture was sandy loam to clay with low to high levels of organic matter content (2.0–18.7 g.kg-1), available phosphorus (0.13–0.17 mg.kg-1), available potassium (11–174 mg.kg-1), and cation exchange capacity (4.5–38.5 cmolc.kg-1). There were no differences in the aggregate size distribution among the soils with nearly half of the net aggregates being dominated by macroaggregate size WSA1, especially in the topsoil layers. Organic carbon, available P, bulk density, sand+silt and the clay fractions, and extractable Mg, Fe and Mn played important roles in the water stability of aggregation of these soils in different sizes. Organic carbon was the main source contributing to the formation of macroaggregates (r = 0.77in the topsoils, which consequently reduced the bulk density of these soils (r= -0.58 ). Various amorphous forms of Fe, especially in the amorphous form, were clearly involved in the formation of microaggregates (below 2.5 mm) in subsurface soils. |
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หัวเรื่อง:ผลกระทบของระยะปลูกต่อการเจริญเติบโต การดูดธาตุอาหารการกระจายขนาดผลและผลผลิตของสับปะรด ผู้เขียน:ดร.จินดารัฐ วีระวุฒิ, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractAn experiment was conducted to determine the effect of spacing on growth, nutrient uptake, fruit size distribution and yield of pineapple. Plant spacings used in the experiment were 19, 21, 24, 28, 33 and 39 cm. Prior to forcing (11 months), low fresh weight was observed in the crop planted at 19 and 21 cm. spacings. There were no differences in N, P, K, Ca and Mg concentration in the D-leaves at this stage. After forcing, close spacing resulted in higher flowering percentage than wide spacing. At harvest, fruits were separated in to : sub – standard size (No. 0.0), small size (No. 1.0), medium size (No. 2.0) and large size (No. 2.5), wide spacing resulted in higher average fruits weight of size 0.0, 1.0 and 2.0. The highest fruit yield was obtained from spacing of 21 cm. The yield tended to decrease when specing is closer of wider than 21 cm. Fruit weight to plant weight ratio (F : P ratio) of pineapple was similar at 19, 21 , 24 cm spacings and increased slightly with greater spacing. |