02664cas a2200385 a 4500 20260818134647.0 110910s1985 th uu|m rtt 0| a1eng d .b10351681 AIT Thesis no.AE-85-14 Kumar, Vijendra Improving the performance of Thai traditional animal-drawn mould board ploughs Bangkok : Asian Institute of Technology, 1985 64 p. Thesis ; no. AE-85-14 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development Thesis (M.Eng.) - Asian Institute of Technology, 1985 There is an extensive use of animal drawn mould board board ploughs in north-eastern Thailand. The Manufacturers of animal drawn ploughs have little idea of the shape-draft relationship. The plough bottoms of various shapes which are popular in the region have been tested in dry sandy loam soil conditions in a soil bin, using strain gauge mounted load rings, at typical speed and ploughing depth for animals. A significant variation in the horizontal, vertical and side forces was found. all the plough bottoms showed a common tendency of inverting soil in fairly equal amounts both to right and left. Only a small variation in soil inversion angles was seen. The plough bottom with low (not the lowest) lift angle and difference in radius of curvature as the soil particle moved from point of rest to about-middle of the surface of the mould board, has been proved the best-performing one from the view point of specific draft, inversion angle and plough capacity. Agricultural implements Thailand Gee-Clough, D., Chairperson Gupta, Chandra P., Examination Committee Cochran, Billy J., Examination Committee Government of Japan, Scholarhsip Donor Asian Institute of Technology. Thesis ; no. AE-85-14 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B19934 .b10351681 mnait s 240402 2 951012 m a s 0 mnait mnarc 22 40 Barcode : 30050120582415 CREATED : 2014-10-02 RECORD # : i12760651 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120303457 CREATED : 2016-05-25 RECORD # : i12992677 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 58965 58965 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.AE-85-14 30050120582415 2026-08-18 13:46:47 3 2026-08-18 22 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.AE-85-14 30050120303457 2026-08-18 13:46:47 2026-08-18 40