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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Determination of the Effect of Recycling Treatment on Pulp Fiber Properties by Principal Component Analysis) ผู้เขียน: ดร.สมหวัง ขันตยานุวงศ์, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractThe effect of recycling treatment on properties of hardwood bleached kraft pulp fibers was determined. Even though the morphological and physical properties of fibers were affected by recycling, there were no significant changes in most of the properties. Therefore, an application of principal component analysis for determining the effect of recycling treatment was attempted and demonstrated in this research. This application could graphically demonstrate the difference between never-recycled and recycled fibers as well as that between the recycled fibers themselves. Furthermore, the results of the analysis could also usefully reveal the correlation between properties of fibers. |
หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Classification of Hom Mali Rice with Different Degrees of Milling Based on Physicochemical Measurements by Principal Component Analysis) ผู้เขียน: Areerat Imsil, ดร.รณฤทธิ์ ฤทธิรณ, รองศาสตราจารย์ , Panmanas Sirisomboon, Varipat Areekul สื่อสิ่งพิมพ์:pdf AbstractThe effect of the degree of milling on the physicochemical properties of Hom Mali rice compared with low, intermediate and high amylose rice groups was investigated in order to differentiate Hom Mali rice from the other groups at different degrees of milling by principal component analysis (PCA). For all the rice groups, the apparent amylose content, alkali spreading value and pasting properties such as maximum viscosity, breakdown, final viscosity and setback viscosity increased with increases in the degree of milling except for the gel consistency which was reduced. Milled rice with a degree of milling of 15% showed the highest apparent amylose content, alkali spreading value and pasting properties compared with milled rice with degrees of milling of 10% and 5% and with brown rice. PCA could be applied to classify Thai rice varieties into four groups—Hom Mali, low, intermediate and high amylose rice groups—by two principal components (PCs). Rotated PC1 and PC2 using the Varimax method were better at explaining the variance of the parameters than the unrotated PCs. PCA clearly differentiated the classification of Rice Department 15 variety from the Pathum Thani 1 variety at the same degree of milling. Therefore, the stability of the degree of milling using PCA based on physicochemical measurements made it a preferable classification procedure for rice. |
การประชุมวิชาการA pipeline extraction on forward-looking sonar images using the self-organizing mapผู้แต่ง:Tulsook, S., Dr.Teerasit Kasetkasem, Associate Professor , Dr.Yodyium Tipsuwan, Assistant Professor , Sugino, N., Chanwimaluang, T., Hoonsuwan, P., การประชุมวิชาการ: 
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