• Title/Summary/Keyword: Operation Strategies

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Cardiopulmonary Bypass Strategies to Maintain Brain Perfusion during Lung Transplantation in a Patient with Severe Hypercapnia

  • Sohn, Bongyeon;Park, Samina;Lee, Hyun Joo;Jeong, Jin Hee;Choi, Sun Mi;Lee, Sang-Min;Seo, Jeong-Hwa;Kim, Young Tae
    • Journal of Chest Surgery
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    • v.52 no.1
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    • pp.58-60
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    • 2019
  • Herein, we report a case of lung transplantation in a patient with profound preoperative hypercapnia, focusing on the cardiopulmonary bypass strategy used for brain perfusion during the operation. We applied the pH-stat method for acid-base regulation, and thereby achieved the desired outcome without any neurologic deficit.

An Empirical Study on the Operation of Public Small Libraries in K District of Busan (공립 작은도서관 운영 현황과 과제 - 부산광역시 K구를 중심으로 -)

  • Chang, Durk Hyun
    • Journal of Korean Library and Information Science Society
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    • v.49 no.4
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    • pp.73-91
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    • 2018
  • This study attempts to suggest effective strategies for small library services in Busan metro area. There has been a steady increase of small libraries that provide user friendly services for local residents. Local governments that is interested in such roles as community spaces based on the familiarity and flexibility of small libraries keep building and operating small libraries in Korea. This study, in this regard, surveyed the small libraries established and operated by a specific local government and analyzed the significance and problems in managing small libraries. In this study, we obtained data from observations, dialogues with managers and users through actual visit surveys to find out the limitations and difficulties of local small libraries.

Analysis of liberal arts education based on NCS and K-CESA in dental hygiene

  • Yoo, Jin-Ah;Jang, Jong-Hwa
    • Journal of Korean society of Dental Hygiene
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    • v.19 no.5
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    • pp.635-649
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    • 2019
  • Objectives: This literature review seeks to identify the current status of the liberal arts education of dental hygiene majors offered by universities in Korea and the U.S. and provide a comparative analysis of the data on liberal arts education in both countries. Methods: From April 3, 2017 to May 1, 2017, research data on curriculum topics were collected from 60 selected universities. The data were collected from university websites, which also provided the universities' emails and dental hygiene major descriptions. We calculated the descriptive statistics of the variables and performed independent t-tests on the data. Results: In all the domains of the NCS and K-CESA, the dental hygiene major currently offers courses on language and communication and general education, focusing on self-management and development. Few universities offer subjects from other disciplines. Conclusions: Pro-actively exploring strategies is a prerequisite to the systematic operation of standardized dental hygiene education. It is imperative to conduct research consistently on relevant topics, such as teaching methods, general education standards, and connectivity between major subjects and the goals and effects of exposure to a general education.

A Study on the Role and Programs of Architectural Centers at Home and Abroad according to the Main Body of Operation (국내외 건축센터의 운영주체별 역할 및 프로그램에 관한 연구)

  • Nam, Ji-Hyun;Jo, Hee-Eun
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.35 no.3
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    • pp.31-40
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    • 2019
  • The purpose of this study is to analyze the programs and the roles of Architectural Centers by their types in terms of the main body of organization. In order to figure out the programs and the roles, we examined the possibility to have different roles and varied collaboration ways depending on their main body types : central, municipal, architectural associations, and other private sectors. We also investigated the process of establishment of the Centers, their programs to promote the public and private partnerships focusing on the quality improvement of public architecture, research & investigations, education & publication, and cultural exchange & events. From this study, we could find out the differentiated management strategies and the ways of collaboration in public & private sectors for architectural centers and understand which aspects should be taken into consideration in the establishment of architectural centers. Centers initiated by public sectors generally have been focusing on supporting funds and centers initiated by private sectors relatively have developed the field oriented programs activating collaborative network and public participation.

A Study on the Management System of Public Architecture from a Local Regeneration Perspective - A Case Study of the Public Architecture in Seoul - (지역재생 관점의 공공건축 운영시스템 현황과 개선방향 - 서울시 자치구 공공건축 운영 사례를 대상으로 -)

  • Kim, Hye-Ryeon;Hwsng, Doo-Young;Lee, Jung-Hyung
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.36 no.2
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    • pp.71-78
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    • 2020
  • This study focused on the 'public architecture' of each local area as an alternative to local regeneration with a huge amount of funding. The starting point of this study is the public architecture that can be used as a strategic resource for local regeneration as a hub for communities for residents in the local area. The main content of the research is to identify the requirements of public architecture as a local regeneration hub and problems in the current public architecture management system. Based on results of the study, the following direction is to be presented for improvement of the public architecture management system to contribute to continuous local regeneration. The first results reveal there is a need to actively introduce measures to dualize facility maintenance and program operation. Secondly, the results show the participation of residents in public architecture management should be more active to reflect local demand. Thirdly, it is evident that the management entity should establish and implement goals and strategies toward local regeneration. Lastly, public architecture must strive to provide local community space.

Design Strategy for Residential Complex based on Landscape Urbanism

  • Choi, Jae-Hyun
    • International Journal of Advanced Culture Technology
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    • v.9 no.1
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    • pp.121-128
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    • 2021
  • In this study, we aim to suggest direction for landscape design of residential complex in Korea by studying target areas to understand how landscape urbanism was applied to residential landscape design as it is the majority of landscape design in Korea and by closely examining design elements to be considered for design of residential complex based on landscape urbanism theory. For the purpose of the study, some of public multifamily housing complex were selected as target areas and a survey was first conducted to understand how landscape urbanism was applied to design of these target areas. Then, by analyzing the survey results, we identified which elements were of importance to designing of multifamily housing complexes in Korea and how practical design of landscape urbanism works. From this study, we concluded that landscape urbanism theory is not just about design strategies, but more of comprehensive design methodology covering both operation and management and that such theory can be appropriately applied to design of multi-housing complexes in Korea. We also discovered that in order to apply landscape urbanism in design stage for multi-housing complex, selecting which design strategy/words in the previous study is not what's important, but comprehensive understanding and interpretation of design languages is key.

Review of Application Cases of Machine Condition Monitoring Using Oil Sensors (윤활유 분석 센서를 통한 기계상태진단의 문헌적 고찰(적용사례))

  • Hong, Sung-Ho
    • Tribology and Lubricants
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    • v.36 no.6
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    • pp.307-314
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    • 2020
  • In this paper, studies on application cases of machine condition monitoring using oil sensors are reviewed. Owing to rapid industrial advancements, maintenance strategies play a crucial role in reducing the cost of downtime and improving system reliability. Consequently, machine condition monitoring plays an important role in maintaining operation stability and extending the period of usage for various machines. Machine condition monitoring through oil analysis is an effective method for assessing a machine's condition and providing early warnings regarding a machine's breakdown or failure. Among the three prevalent methods, the online analysis method is predominantly employed because this method incorporates oil sensors in real-time and has several advantages (such as prevention of human errors). Wear debris sensors are widely employed for implementing machine condition monitoring through oil sensors. Furthermore, various types of oil sensors are used in different machines and systems. Integrated oil sensors that can measure various oil attributes by incorporating a single sensor are becoming popular. By monitoring wear debris, machine condition monitoring using oil sensors is implemented for engines, automotive transmission, tanks, armored vehicles, and construction equipment. Additionally, such monitoring systems are incorporated in aircrafts such as passenger airplanes, fighter airplanes, and helicopters. Such monitoring systems are also employed in chemical plants and power plants for managing overall safety. Furthermore, widespread application of oil condition diagnosis requires the development of diagnostic programs.

A SE Approach to Predict the Peak Cladding Temperature using Artificial Neural Network

  • ALAtawneh, Osama Sharif;Diab, Aya
    • Journal of the Korean Society of Systems Engineering
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    • v.16 no.2
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    • pp.67-77
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    • 2020
  • Traditionally nuclear thermal hydraulic and nuclear safety has relied on numerical simulations to predict the system response of a nuclear power plant either under normal operation or accident condition. However, this approach may sometimes be rather time consuming particularly for design and optimization problems. To expedite the decision-making process data-driven models can be used to deduce the statistical relationships between inputs and outputs rather than solving physics-based models. Compared to the traditional approach, data driven models can provide a fast and cost-effective framework to predict the behavior of highly complex and non-linear systems where otherwise great computational efforts would be required. The objective of this work is to develop an AI algorithm to predict the peak fuel cladding temperature as a metric for the successful implementation of FLEX strategies under extended station black out. To achieve this, the model requires to be conditioned using pre-existing database created using the thermal-hydraulic analysis code, MARS-KS. In the development stage, the model hyper-parameters are tuned and optimized using the talos tool.

Relative competitiveness of department of dental hygiene and the effectiveness of admission promotion using the YouTube platform (국내 치위생(학)과의 경쟁력과 유튜브 플랫폼을 이용한 학과홍보의 효용성)

  • Jeon, Se-Jeong
    • Journal of Korean society of Dental Hygiene
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    • v.21 no.4
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    • pp.393-402
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    • 2021
  • Objectives: As the school-age population continues to decline in Korea, the consolidation and abolition of departments continues with the economic logic. This study aimed to analyze the relative competitiveness of the department of dental hygiene and to investigate the effectiveness of the YouTube platform being used to promote admission. Methods: Using the admission result data provided by the Korea council for university education, the new student competition rate and recruitment rate of the department of dental hygiene were compared with those of the departments of natural sciences and all other departments. Also, the effect of YouTube channel operation on them was analyzed. Results: The department of dental hygiene showed a slight advantage but it was not particularly the case compared to other departments of natural sciences. The promotion using YouTube did not have any significant effects. Conclusions: Considering that the school-age population will rapidly decrease in the future, more active strategies are needed.

Determinants of Positive Word of Mouth for a Contemporary Art Exhibition on Web-based Virtual Reality

  • Han, Jingyi;Zhu, Zong-Yi;Kim, Hyeon-Cheol
    • International Journal of Internet, Broadcasting and Communication
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    • v.13 no.3
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    • pp.137-147
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    • 2021
  • We aimsto examine the determinants of visitors' positive word-of-mouth (WOM) in a web-based virtual reality contemporary art exhibition. We also examines the effects of 3 realms of experience (entertainment, esthetic, escapist) on emotional arousal, how this emotional arousal affects memory and positive word-of-mouth, how memory affects positive word-of-mouth and how age moderate all of the paths. We examined a total of 297 visitors and was conducted through an online survey focusing on Chinese users of ages 20-49. The analysis results showed that entertainment and esthetic have an effect on emotional arousal, but escapist did not. The results also showed emotional arousal has an effect on memory and positive WOM. Memory did not affect positive word-of-mouth. Finally, age has a moderate effect on all the paths, except for the path form escape towards emotional arousal and memory to positive word-of-mouth. The theoretical implications of this study are meaningful exhibition research. While, it also will be helpful to segment the web-based virtual reality art exhibition visitors by dividing into 3 groups (20s, 30s, 40s) and to provide marketing and operation strategies.