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오윤석,김승희 한국부동산학회 2019 不動産學報 Vol.79 No.-
1. CONTENTS (1) RESEARCH OBJECTIVES Since mall merchandising is determined at the time of initial distribution or supply, it cannot be easily changed by a new customer's needs. Therefore, the purpose of this study was to identify the mall merchandising of the main elements and to identify the importance of the components by category. Through this, the study enhances the understanding of the utilization value of the mall merchandising. (2) RESEARCH METHOD Through Analytic Hierarchy Process(AHP) and Hierarchical Multiple Regression Analysis, this study analyzed the importance of the mall merchandising of the main elements by dividing them into components by external impact and structural and internal compartmentalization. (3) RESEARCH FINDINGS So far, we have been able to identify problems such as disagreement of mall merchandising and location. In addition, there were practical difficulties in finding experienced design participants in malls. 2. RESULTS Design usability and economic efficiency should be secured by accurately diagnosing the conditions at the site and then by assuring the efficiency of the design of the business sector and classifying it by type. In particular, since the floating population factor has a decisive influence on the sales of the stores, the quantitative and qualitative characteristics of the population should be well analyzed and the trends should be closely predicted. In addition, facility factors have direct and indirect effects on consumer sentiment and purchasing behavior, so sufficient research and review should be presupposed before design. 3. KEY WORDS Mall merchandising, Significant components, Importance, Priority, Analytic Hierarchy Process(AHP)
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오윤석,김정만,정한진,신시옥,최영석 대한이비인후과학회 2017 대한이비인후과학회지 두경부외과학 Vol.60 No.11
Background and Objectives The incidence of recurrence after surgery of congenital cholesteatoma is increasing due to the widespread use of otoendoscopy as well as an increased awareness of these lesions among primary care physicians. There is no general consensus on the risk factors affecting recurrence. In this study, analyzing clinical characteristics of recurred cases from a tertiary hospital, we investigated risk factors for the recurrence of congenital cholesteatoma after surgery. Subjects and Method From 1999 to 2016, data were collected from retrospective chart reviews of patients who have undergone surgeries for congenital cholesteatoma at Hospital. We analyzed data about clinical characteristics and recurrence according to the age at diagnosis, location, stage and type of disease, pneumatization of mastoid, ossicular erosion, and surgical techniques. Results Sixty-eight patients underwent surgery for congenital cholesteatoma. The average age at operation was 4.8 years. Recurrence was detected in 7 cases of the 68 patients, with the recurrence rate of 10.3%. Sex, age, cholesteatoma type, location, stage, mastoid pneumatization, and operation method did not show significant differences between the recurred group and the non-recurred group in the univariated analysis. Conclusion The recurrence rate of congenital cholesteatoma after primary operation was 10.3%. In this study, there was no statistically significant risk factor for postoperative recurrence of congenital cholesteatoma. Korean J Otorhinolaryngol-Head Neck Surg 2017;60(11):554-8
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외식산업의 성과측정항목의 가중치 개발: 국내 패밀리 레스토랑을 중심으로
오윤석,정순여 한국외식경영학회 2004 외식경영연구 Vol.7 No.2
Measuring and evaluating the business performance plays a very important role in managing the business. This study tried to propose a novel point of prospective and method in which the performance evaluation in any family restaurant should be illuminated and be performed. In this study, BSC provided the main conceptional framework for evaluating the performance of a family restaurant. Furthermore, this study verified the validity of the proposed performance evaluation method through specific case analysis and used AHP to quantify its validity objectively. Finally, this study found the fact that non-financial prospectives, compared to financial prospectives, should be more importantly considered as the performance evaluation index of the family restaurants. Most of all, the study showed that the proportion of performance evaluation indexes related to Customers prospective and Learning and Growth prospective revealed very highly, therefore variables such as customer satisfaction index, per employee productivity, education and training, customer response rate, employee satisfaction index should be emphasized as key factors when it comes to the process of selecting indexes and measuring their performance evaluation of the business.
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조현병 환자에서 1년간의 2세대 항정신병약물 지속적 투여가 혈소판 활성도에 미치는 영향: 후향적 연구
오윤석,이종욱,오홍석,김승준,이나현,임우영,김지웅 한국정신신체의학회 2022 정신신체의학 Vol.30 No.2
Objectives:This study was conducted to investigate the effect of 1-year administration of second-generation antipsychotics (SGAs) on the platelet activity in patients with schizophrenia through a retrospective review of the medical records. Methods:The mean platelet component (MPC) value was used as an index of the platelet activity. The included subjects (N=24) were the patients who were confirmed to have taken SGAs continuously for one year after the first MPC measurement had been performed. The change of MPC was verified through a paired sample t-test. Results:The result revealed that the mean MPC value was significantly decreased from 26.5±1.4 g/dL to 25.6± 1.8 g/dL after 1-year administration of SGAs from the time of the first MPC measurement. Conclusions:This study suggests that 1-year administration of SGAs may be related with increased platelet activity, and that close monitoring for risks such as cerebrovascular/ or thromboembolic diseases may be necessary during SGAs treatment in clinical practice. 연구목적본 연구는 후향적 의무기록 검토를 통해 조현병 환자에서 1년간의 2세대 항정신병약물 투여가 혈소판 활성에미치는 영향을 알아보기 위해 시행되었다. 방 법혈소판 활성의 지표로는 평균혈소판요소(mean platelet component, MPC) 값을 이용하였다. 첫 평균혈소판요소 측정 이후 1년간 지속적으로 2세대 항정신병약물을 꾸준히 복용한 것으로 확인된 조현병 환자 총 24명을대상으로, 평균혈소판요소의 변화를 대응 표본 t 검정을 통해 검증하였다. 결 과첫 측정 시 및 1년간의 2세대 항정신병약물 투여 후의 평균혈소판요소 값은 각각 26.5±1.4 g/dL와 25.6± 1.8 g/dL로, 1년간의 약물 복용 후 유의하게 평균혈소판요소 값이 감소하였다. 결 론본 연구는 1년간의 2세대 항정신병약물 투여 시 혈소판 활성이 증가될 수 있음을 시사하며, 임상 진료 시 이와 관련될 수 있는 심뇌혈관질환, 혈전색전성 질환 등의 위험성에 대해 면밀한 모니터링이 필요할 수 있음을 시사한다.
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터빈블레이드 형상 mock-up의 기하학적 배치조건에 따른 전자빔 물리기상증착법으로 제조된 7 wt% YSZ 열차폐 코팅의 코팅 균일성
오윤석,채정민,류호림,한윤수,안종기,손명숙,김홍규,Oh, Yoon-Suk,Chae, Jung-Min,Ryu, Ho-lim,Han, Yoon-Soo,An, Jong-Kee,Son, Myung-Sook,Kim, Hong-Kyu 한국결정성장학회 2019 한국결정성장학회지 Vol.29 No.6
Electron beam physical vapor deposition (EBPVD) is a conventional method to fabricate thermal barrier coating (TBC) of high temperature airfoil engine parts, such as blade etc. for its high temperature structural stability from the nature of columnar growth behavior. For the high quality of TBC by EBPVD, the structural factors, such as growth behavior, thickness uniformity and so on, should be managed to obtain the coating which satisfied the required specifications of usable level of mechanical and thermal properties. In this study, the growth behavior and structure variations of 7YSZ (7 wt% yttria stabilized zirconia) coatings with different configurational deposition parameters for the specimens which have turbine blade shape mock-up were investigated. Growth behavior of coatings were studied by comparing computational modeling of evaporation behavior with actual deposition process using e-beam source.
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