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돼지에서 난자의 체외발육 배양액 내 첨가된 거대분자물질이 작은 난포 유래 미성숙 난자의 성장, 성숙 및 배 발육에 미치는 영향
이한나,이용진,이주형,이근식,이승태,이은송,Lee, Hanna,Lee, Yongjin,Lee, Joohyeong,Lee, Geun-Shik,Lee, Seung Tae,Lee, Eunsong 대한수의학회 2019 大韓獸醫學會誌 Vol.59 No.2
This study was performed to examine the effects of various macromolecules in in vitro growth (IVG) media on the growth, maturation, and parthenogenesis (PA) of pig oocytes derived from small antral follicles (SAF). Immature oocytes were cultured for two days in IVG medium supplemented with 10% (v/v) fetal bovine serum (FBS), 10% (v/v) pig follicular fluid (PFF), 0.4% (w/v) bovine serum albumin (BSA), or 0.1% (w/v) polyvinyl alcohol (PVA) and then maintained for 44 h for maturation. After IVG, the mean diameters of the SAF treated with FBS, PVA, and no IVG-MAF ($113.0-114.8{\mu}m$) were significantly larger than that of no IVG-SAF ($111.8{\mu}m$). The proportion of metaphase II oocytes was higher in PFF (73.6%) than in BSA (43.5%) and PVA (53.7%) but similar to that in the FBS treatment (61.5%). FBS and PFF increased cumulus expansion significantly compared to PVA and BSA while the intraoocyte glutathione content was not influenced by the macromolecules. Blastocyst formation of PA oocytes treated with FBS (51.8%), PFF (50.4%), and PVA (45.2%) was significantly higher than that of the BSA-treated oocytes (20.6%). These results show that the PFF and FBS treatments during IVG improved the growth, maturation, and embryonic development of SAF.
제조시스템의 모델링과 시뮬레이션을 이용한 MES 도입방안 및 효과 사전 분석에 관한 연구
SHI TING,ZHAO WENBIN,이주형(Joohyeong Lee),박승현(Seunghyun Park),노상도(Sang Do Noh) (사)한국CDE학회 2014 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2014 No.2
Many manufacturing companies are investing in a lot of the information system to improve the competitiveness. To share information quickly between an enterprise"s information systems and support to decision-making, obtain and process information quickly and manage it efficiently and comprehensively on the production floor, Manufacturing Execution System (MES) has been introduced to the manufacturing companies. However, because each company has the different production environment, some companies haven’t obtained many effects after applying the MES system. So many minor enterprises do not to introduce the MES. This study was put forward the method of analysis the introduction methodology and effect of MES using modeling and simulation before an enterprise introduce the MES.
이주형,최준호 관광경영학회 2002 관광경영연구 Vol.14 No.-
The purpose of this study is to examine on the tour conductor's role to travel product quality with a related conception and to offer a business strategy of outbound travel product quality to them in such a competitive situation of the travel agencies. In order to accomplish the purpose of this study, First, I rely upon previous tests and researches, furthermore I adapted and modified components of a number of a previously tests and validated research instruments to make the hypotheses of test. A view point of overseas travelers by outbound travel agencies be analyzed actual experience, and then, the difference and problem at issue is to find. By studying these points, I shall endeavor to establish theoretical background about travel product quality. Second, the object of this study is limited to overseas travelers by outbound travel agencies. These questionnaires were made for overseas travelers and were sent to 1,000 questionnaires. This exploratory study surveyed a random sample of 1,000 overseas travelers respondents, and collected 663 usable questionnaires. The data obtained from the returned usable questionnaires was coded for statistical analysis. SPSS 10.0 for windows was used for frequency analysis, reliability analysis, factor analysis, correlation analysis, regression analysis, t-test, and analysis of variance(ANOVA). Findings from analysis result indicate as follows; First, it was founded out that there are many differences between an importance of the travel product and a performance of the travel product quality by travelers. It means on the service result's discordance. Second, travelers are important thinking tour conductor's role, response, local facilities and activities, travel agency business and confidence orderly in an importance of the travel product attributes. Third, outbound tour conductor's role have an effect on the travel product quality. Therefor travel product was made to study of the very important thing that is a mutual relationships with customer, employee and the travel agency. Forth, a traveler who was satisfied with travel product quality was proved of having an effect upon travel agency satisfaction, repurchase intention, and information by word of mouth Finally, we were inquired into how the travel agency satisfaction will be effect with repurchase intention and information by word of mouth. The result of research, everything is shown to the strong correlation. On the basis of the above results, the following conclusion were to inferred. The travel agency managers have to the point of traveler's satisfaction in order to improve the traveler's repurchase intention and information by word of mouth. The limitations of this study are as follow. The attribute variables, which had used for the empirical study, are short of objectiveness because of the lack of precedent study about the effects of tour conductor's to the travel product quality. Therefore, a further study to overcome this limitations are being expected.