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Disfluencies and Speech Rates of Standard Korean Speakers in Story-telling and Reading Contexts
Shim, Hong-Im,Chon, Hee-Cheong,Ko, Do-Heung Korean Society of Speech Sciences 2005 음성과학 Vol.12 No.1
The purpose of this study is to compare disfluencies and speech rates (overall speech rate and articulation rate) of normal adult speakers who use the standard Korean according to dissimilar speech tasks (story-telling and text-reading). Participants were 100 Korean adult speakers. The results are summarized as follows: First, the most frequent type of disfluency in the story-telling task was 'interjection', whereas that in the text-reading task was 'revision'. Second, the overall speech rates (syllables per second and syllables per minute) showed significant differences depending on the speech tasks. Third, the articulation rates (syllables per second and syllables per minute) showed significant differences depending on the speech tasks.
정태성(Cheong, Tae Sung),고택조(Ko, Teakjo),심기오(Shim, Kio) 한국방재학회 2017 한국방재학회논문집 Vol.17 No.4
본 연구에서는 비교적 수집이 용이한 수리량 자료와 횡월류 위어 형상자료로부터 유량계수를 산정하는 공식을 개발하였다. 유량계수 산정식을 개발하기 위하여 소하천 특성이 반영된 수리모형실험을 수행하였다. 수리모형실험은 국립재난안전연구원 실험동에 구축된 길이 22 m, 높이 1 m 그리고 폭 2 m의 실험수로에서 수행되었다. 이때 횡월류 위어의 형태는 현장조사 결과를 토대로 월류부 마루높이가 없는 사각위어로 결정하였다. 유량계수 산정식 개발을 위하여 민감도 분석을 통해 물리적 의미를 갖는 프루드 수, 횡월류 위어길이, 하도경사 그리고 월류수심을 독립변수로 선정하고 비선형 다중회귀방법을 적용하였다. 본 연구에서는 개발된 유량계수 산정식의 거동을 상대적으로 비교·분석하기 위하여 기 개발된 산정식 중 정확도가 높은 것으로 밝혀진 공식과 본 연구의 산정식 결과를 실측치와 함께 비교하였다. 비교 결과 본 연구에서 개발된 산정식은 기존의 공식에 비해 유량계수의 거동을 잘 재현하고 있는 것으로 나타났다. New discharge coefficient equation which can be used to estimate discharge coefficient has been developed by using only hydraulic data and weir shape data easily obtained. Hydraulic experiments reflecting small stream characteristics has been performed to develop discharge coefficient equation. Hydraulic experiments has been performed in open channel which is 22 m long, 1m high and 2 m wide and established in National Disaster Management Institute, Korea. Rectangular side weir installed in the channel is determined by field research. Sensitivity analysis are performed to select physically meaningful parameters such as Froude Number, weir length, channel slope and depth as a dependent variables and nonlinear multiple regression method is used to develop new discharge coefficient equation. The new discharge coefficient equation results are compared with measured data and also discharge coefficients estimated from selected equations which can represent discharge coefficient well. New discharge coefficient equation which has been developed in this study is proven to be superior in explaining discharge coefficient of side flow weir more precisely compared to existing discharge coefficient equations.
Hyun Chang,Chi Young Shim,June Won Cheong,Ju Yeon Pyo,Young Guk Ko,Dong Hoon Choi,Yang Soo Jang 대한내과학회 2006 The Korean Journal of Internal Medicine Vol.21 No.2
Essential thrombocythemia (ET) is a clonal disorder of myeloid stem cells that causes thrombocytosis. As a result, ET can lead to vascular thrombosis and tissue ischemia; the association of coronary artery abnormalities such as myocardial infarction or uns
Hwang, In-Sun,Park, Mi-Rung,Moon, Hyo-Jin,Shim, Joo-Hyun,Kim, Dong-Hoon,Yang, Byoung-Chul,Ko, Yeoung-Gyu,Yang, Boh-Suk,Cheong, Hee-Tae,Im, GI-Sun The Korean Society of Animal Reproduction 2007 Reproductive & developmental biology Vol.31 No.2
In vitro development of porcine embryo is affected by culture condition. One possible factor is osmolarity of culture medium. 1his study examined whether high osmolarity of culture medium at the early culture stage improves development of preimplantation porcine in vitro fertilization (IVF) and nuclear transfer (NT) embryos. NT and IVF embryos were divided into three groups and the basic medium was PZM-3 ($250{\sim}270$ mOsmol, control group). The control group of embryos was cultured in PZM-3 for whole culture period. Other two groups of embryos were cultured in a modified PZM-3 with 0.05 M sorbitol or 0.05 M sucrose ($300{\sim}320$ mOsmol, sorbitol or sucrose group) for the first 2 days, and then cultured in PZM-3 for further culture. NT embryos cultured in sucrose group showed a significantly higher developmental rate to the blastocyst stage with a decreased apoptosis rate compared to the sorbitol (p<0.05). For IVF, sucrose group showed a significantly increased the blastocyst formation rate with a decreased apoptosis rate compared to the control (p<0.05). This study represents that the high osmolarity in the early embryo culture stage can enhance the in vitro development of porcine NT and IVF embryos to the blastocyst stage with reduced apoptosis of cells.
In-Sun Hwang,Mi-Rung Park,Hyo-Jin Moon,Joo-Hyun Shim,Dong-Hoon Kim,Byoung-Chul Yang,Yeoung-Gyu Ko,Soh-Suk Yang,Hee-Tae Cheong,Gi-Sun Im 한국동물생명공학회(구 한국동물번식학회) 2007 Reproductive & developmental biology Vol.31 No.2
In vitro development of porcine embryo is affected by culture condition. One possible factor is osmolarity of culture medium. This study examined whether high osmolarity of culture medium at the early culture stage improves development of preimplantation porcine in vitro fertilization (IVF) and nuclear transfer (NT) embryos. NT and IVF embryos were divided into three groups and the basic medium was PZM-3 (250~270 mOsmol, control group). The control group of embryos was cultured in PZM-3 for whole culture period. Other two groups of embryos were cultured in a modified PZM-3 with 0.05 M sorbitol or 0.05 M sucrose (300~320 mOsmol, sorbitol or sucrose group) for the first 2 days, and then cultured in PZM-3 for further culture. NT embryos cultured in sucrose group showed a significantly higher developmental rate to the blastocyst stage with a decreased apoptosis rate compared to the sorbitol (p<0.05). For IVF, sucrose group showed a significantly increased the blastocyst formation rate with a decreased apoptosis rate compared to the control (p<0.05). This study represents that the high osmolarity in the early embryo culture stage can enhance the in vitro development of porcine NT and IVF embryos to the blastocyst stage with reduced apoptosis of cells.