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박세영,이정재,김선행,구병삼,Park, S.Y.,Lee, J.J.,Kim, S.H.,Ku, P.S. 대한생식의학회 1992 Clinical and Experimental Reproductive Medicine Vol.19 No.2
The possible effect of human follicular fluid(hFF) on the growth and development of fertilized oocytes and embryos is important because the fallopian tubes are exposed to FF after follicular rupture and the processes of fertilization and embryo cleavage occur inside the fallopian tubes. Previously, it was suggested that human FF might adversely affect on the development of early mouse embryos. In order to investigate the effect of hFF on the development of embryos, early mouse embryos were cultured in media containing various protein sources as bovine serum albumin(BSA), fetal cord serum(FCS) and FF. And we evaluated the development of early mouse embryos in terms of the morphology, cleavage rate, and cell count of blastcysts. There were no significant differences in the morula and blstocyst formation rates of 2-cell mouse embryos cultured in the media containg three different protein sources and three different concentrations of FF. The blastocyst formation rate of 1-cell mouse embryo cultured in FF group was significantly higher than that cultured in BSA group(P<0.05). The morula and blastocyst formation rates of 2-cell mouse embryos of the group cultured in the media containing FF were comparable with those of other two groups, in addition, the cell count of blastocysts of FF group in the 2-cell embryo culture was higher than those of BSA group and HCS group(P<0.01), and this finding was also noted in 1-cell embryo culture. There was no difference in the morula and blastocyst formation rates of the 2-cell mouse embryos cultured in the media containing different concentrations of FF. These results suggest that mature human follicular fluid has no inhibitory activity on the development of early mouse embryos even in high concentration and may be a good protein source which is positively associated with the development of mouse embryos in vitro especially in 1 cell embryo culture.
박세영(S.Y.Park),박종규(J.K.Park),윤면근(M.K.Yoon),류정인(J.I.Ryu) 한국자동차공학회 1995 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1995 No.6_1
This study for the characteristics of flow in the automotive muffler is carried out to find out total pressure distribution and velocity profile changing 10 simple muffler shape. Also we measured total pressure at both inlet pipe and outlet to calculate total pressure loss by changing the muffler shape.<br/> In this study, we considered offset element and volumetric rate by using baffle plate. To measure the total pressure and velocity we used pitot tube and AD converter.<br/>
안순혁(S.H.Ahn),윤면근(M.K.Yoon),박세영(S.Y.Park),조성철(S.C.Cho),류정인(J.I.Ryu) 한국자동차공학회 1995 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1995 No.11_2
Today, modern society is an excessive consumption age of petroleum energy. An excessive consumption of petroleum fuel is accompanied with the panic of ultimate depletion of existing oil resources and environmental contamination by exhaust gas.<br/> Based on this situation, gasoline-methanol blends which is the mixture of gasoline and alcohol as well as compatible to existing spark ignition engine with minor or modification was developed. <br/> This is an experimental research to study the characteristics of spray for gasoline-methanol fuel with gasoline injector. To measure the droplet size(SMD) we used the Malvern system 2600c.<br/> The results of study are that in the physical properties, the specific gravity and viscosity of blending fuel increase, mean diameter of droplet(SMD) decrease as injection pressure increase and SMD increase in the increase of blending rate.<br/>
정책 활동과 인물 특성에 대한 인식이 정치인 이미지와 선호에 미치는 영향
김태완(Kim, Tae Wan),허윤철(Heo, Yun-Cheol),황성욱(Hwang, Sungwook),박홍원(Park, Hong-Won) 한국광고홍보학회 2020 한국광고홍보학보 Vol.22 No.1
본 연구는 정치인 이미지와 그 영향 요인을 통해 정치인에 대한 유권자의 선호를 설명하고자 하였다. 유권자가 상정한 정치인과 그에 대한 평가를 묻는 설문 조사 결과를 바탕으로 분석한 결과, 정치인에 대한 능력과 부패의 이미지, 정치인의 인물 특성과 정책 활동에 대한 인식을 하위 요인으로 하는 정치인에 대한 유권자의 선호를 결정하는 모형이 구성되는 것으로 확인되었다. 또한, 정치인 선호 결정 모형은 유권자의 성별과 정치적 성향에 따라, 대상이 되는 정치인의 성별과 중앙/지방 정치인이라는 특성에 따라 하위 요인의 영향력에 차이가 있는 것으로 확인되었다. 이러한 분석 결과는 기능 이론 연구를 수용자 관점으로 전환하였다는 이론적 함의와 정치인의 이미지 메이킹 과정에서 고려해야 할 요소를 확인하여, 그에 대한 대안을 제시하도록 하는 실무적 함의를 가지는 것으로 볼 수 있다. This study examined the influence of perceived policy activities and perceived character features on politicians’ image and preference to them. This survey study asked respondents to think of a politician and to evaluate him or her. After performing a series of analysis, this study found a good fit of the model testing the relationships among perceived policy activities and perceived character features as predisposing factors, politicians’ ability image and their corruption image as mediating factors, and respondents’ attitude towards politicians as a final endogenous factor. In addition to that, this study found that respondents’ gender, their political propensity, politicians’ gender, and politicians’ constituency are significant moderating variables. Based on the results, this study discussed scholarly implications for the functional theory of political discourse and practical implications for politician’s image PR.
최원식(W. S. Choi),남중희(J. H. Nam),강창원(C. W. Kang),김원구(W. G. Kim),이인(I. Lee),권주리(J. R. Kwon),박세영(S. Y. Park),문희준(H. J. Mun) 한국소성가공학회 2009 한국소성가공학회 학술대회 논문집 Vol.2009 No.5
In this study we investigate the machining characteristics of tool material for cold forging by using the machining center. The test was in the SKD62 cold forging material by 2-edge endmill with cutting fluid. The coating conditions are depth of cut 1,2,3mm, WC-endmill, federate 20mm/min, cutting velocity 20m/min. The surface roughness increase as the depth of cut increase. Also cutting force increase whiles the depth of cut increase.
OASiX : UNIX 운용 관리를 위한 실시간 지식기반 시스템
김명관(M G Kim),강현규(H K Kang),박세영(S Y Park),임헌규(H G Lim),정경택(K T Chong),임영환(Y H Lim) 한국정보과학회 1990 한국정보과학회 학술발표논문집 Vol.17 No.2
OASiX(Operations and Administration System for UNIX)는 UNIX 운용관리를 위한 실시간 지식기반 시스템이다. UNIX 운용관리를 위한 지식은 크게 감시적 지식, 진단적 지식, 일상관리적 지식으로 나누어진다. 운용자 또는 관리자에 의해 UNIX 운용 관리에 따른 작업은 여러가지의 영역으로 나누어진다. 본 논문에서는 이런 지식들을 기반으로 시스템 운용 관리자를 위한 실시간 처리 시스템에 대하여 기술하였다.