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15世紀 國語의 活用 語幹의 聲調에 對하여 : 特히 一音節 語幹을 中心으로
鄭然粲 忠南大學校 1963 論文集 Vol.3 No.-
1. The basic tone of stems which end in voiceless consonants and have a regular conjugation is low. 2. The basic tone of the consonant stems which have an irregular conjugation is low high. This comes from the old Syncope of the stems. And the low high tone is a juxtaposition of low high tones. 3. The consonants ㅸ, ㅿ?? must have come from the development of the old syncope of these stems. 4. The basic tone of the stems which end with noiced consenants is generally low-high. 5. The basic tone of vowel stems which end with ㅏ(ㅑ)ㅓ(ㅕ)ㅗ(ㅛ)ㅜ(ㅠ)ㅡㅣ is generally high. 6. The basic tone of vowel stems which end with diphtong ㅐ, ㅔ, ㅚ, ㅟ, etc is low high, But some vowel stems which end with end with diphtong ㅢ, ㆎ appear to be high or low in tone. 7. The hasic tone of some vowel stems which begin with aspirate consonants is high. 8. The tonal shifts in these stems are phonologically definable, and it shows why the harmony is kept in them.
정연찬,박준철 서울産業大學校 2005 논문집 Vol.54 No.1
Triangular facet models are widely used in various areas such as CAD/CAM/CAE, rapid prototyping and graphics. They may have defects, such as non-manifold edges and vertices, and duplicated triangles. So, it is hard to use as it is. Topology information can be used to handle the defects of a set of triangles. This paper proposes an algorithm to construct manifold topology and handle some of defects for a set of triangles. The first step of topology construction procedure is to merge vertices of the triangles. Because a complete algorithm of merging vertices is not quite simple, just several approaches and their shortcomings are explained. And the second step is finding adjacencies of triangles sharing a common vertex. Finding adjacencies, non-manifold edges and vertices are separated to manifold structures. Duplicated triangles and folded shapes can be removed after the second step. Stitching the boundaries of triangular nets, which are lumps of connected triangles, is the optional final step of the proposed procedure. The proposed algorithm was implemented and tested with several practical examples.