http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 박동실(Park, Dong-Sill) (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
박동실(Park, Dong-Sill) 백산학회 2007 白山學報 Vol.- No.77
Gosaek-dong Site was located at the southwest of Suwon City. This paleolithic site was excavated by Kyonggi University museum, 2005. The site placed on the south hillside of low mountain(40.2m). Before excavation, this site was used as a agricultural field. In this paper, I try to discuss about the specific characteristics of late paleolithic artifacts uncovered at Gosaek-dong site. First, the excavation of paleolithic artifacts was for the first time in Suwon City region. Before this excavation, paleolithic artifacts such as stone axes, polyhedrals, scrapers, etc, were collected on the surface survey from Osan Gambaesan site in Hwasung City and Daeyami site in Gunpo City. Second, Gosaek-dong site has five soil layers. Among these layers, cultural layer for paleolithic is belonged to second layer in which stone artifacts were included. Just under the cultural layer, wedge shape structures formed at the Ice Age were appeared on the wall of trench. Third, artifacts uncovered are polyhedrals, scrapers, picks, stone cores, and lots of flakes. Although the amounts of artifacts are not so much excavated, from this cultural assemblages we may understand about the making process of stone tools for hunting activities. Finally, the chronology of the site is not clear because of the fact that not only amount of artifacts was rare, but also any evidences for aging the site was uncovered. Nevertheless, we can assume that this site was occupied by human at the late of Upper Paleolithic period, because artifacts excavated in the site is very similar with those of Sam-ri site in Gwangjoo City, Hopyung-dong site in Namyangjoo City, and Gambaesan site in Hwasung City.
-
소성변형 (塑性變形) 과 선택방위가 고순도 Al 의 표면현상에 미치는 영향
이병휘,박동실 대한금속재료학회(대한금속학회) 1967 대한금속·재료학회지 Vol.5 No.2
High purity aluminum (99.99%) rods were cold compressed with the increment of approximately 10% of cold working from O to 70%. The transverse cross section of drawn direction was mechanically polished and further electrochemically polished. Liquid contact angles on these surfaces were measured optically by Sessile Drop Method. Water, Glycerin, Glycol were used. The effect of chemical washing solutions on contact angle values was studied. Liquid contact angle was a function of degree of cold working and, in turn, the degree of preferred orientation. Laue back reflection patterns were taken on these specimens in order to check the state of deformation for the different degrees of cold working.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
