@article{oai:nagasaki-u.repo.nii.ac.jp:00007454,
 author = {杉山, 滋},
 journal = {長崎大学教育学部自然科学研究報告, Science bulletin of the Faculty of Education, Nagasaki University},
 month = {May},
 note = {Knots and the grain deviation around knots affect machinability and surface properties. Therefore, it is necessary to make clear the relation of three-dimensional grain orientation surrounding knots to machinability and surface properties. However, it is very difficult to measure three-dimensional grain angle of knots, machinability of knots and the area having the grain deviation around knots, and surface properties. And thus the major objective of this study is to obtain several basic information on machinability of knots, In this paper, cutting types of knots based on the cutting surface of knots and the cutting direction of the knife is classified. And using its classification, the effects of the grain orientation of knots upon the cutting characteristics of knots are discussed., 長崎大学教育学部自然科学研究報告. vol.45, p.79-94; 1991},
 pages = {79--94},
 title = {木材切削における被削材面に現れる節の切削に関する基礎的研究-1 : 節の切削面・切削方向に基づく節の切削の分類},
 volume = {45},
 year = {1991}
}