• Title/Summary/Keyword: MEGA

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Effects of simulation-based training on the critical care nurses' competence of advanced cardiac life support (시뮬레이션 교육이 간호사의 전문심장소생술 수행능력에 미치는 효과)

  • Back, Chi-Yun
    • Journal of Korean Critical Care Nursing
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    • v.1 no.1
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    • pp.59-71
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    • 2008
  • Purpose: This study was to identify the effects of simulation-based training for advanced cardic life support on the competence of nurses in critical care settings. Methods: In this study, a nonequivalent control pretest-post test quasi-experimental design was used. Data were collected from May 1 to June 1, 2006 at one general hospital in W city. Among 40 nurses in critical care settings, twenty were assigned to the experimental group and twenty to the control group. Nurses in the experimental group received simulation-based training for advanced cardiac life support. Measurement tool were ACLS related knowledge and skills developed by AHA & Mega Code (2005) and some items were modified. The collected data were statistically processed using SPSS version 12.0 for Windows, and analyzed using descriptive statistics, $X^2$test, t-test, paired ttest, Pearson correlation coefficients. Results: 1) Hypothesis 1“: Nurses who received simulationbased training would have more knowledge of advanced cardiac life support than nurses who received traditional training”, was supported (t=11.51, p=.00). 2) Hypothesis 2: “Nurses who received simulation-based training would have better advanced cardiac life support skills than nurses who received traditional training”, was supported (t=2.38, p=.00). Conclusion: Simulation-based training for advanced cardiac life support is an effective strategy for increasing the competence of nurses in advanced cardiac life support in critical care settings.

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Nonlinear Analysis of a Forced Circular Plate with Internal Resonance (내부공진을 가진 원판의 비선형 강제진동해석)

  • 김철홍;이원경
    • Transactions of the Korean Society of Mechanical Engineers
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    • v.16 no.11
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    • pp.2098-2110
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    • 1992
  • An analysis is presented for the combination resonance of a clamped circular plate, which occurs when the frequency of the excitation is near the combination of the natural frequencies, that is, when ohm.=2.0mega./sub 1/+omega./sub 2/. The internal resonance, Omega./sub 3/=omega./sub 1/+2.omega./sub 2/, is considered and its influence on the response is studied. The clamped circular plate experiencing mid-plane stretching is governed by a nonlinear partial differential equation. By using Galerkin's method the governing equation is reduced to a system of nonautonomous ordinary differential equations. The method of multiple scales is used to obtain steady-state responses of the system. Results of numerical investigations show that the increase of the excitation amplitude can reduce the amplitudes of steady-state responses. We can not find this kind of results in linear systems.

Mechanical properties of material in Q345GJ-C thick steel plates

  • Yang, Na;Su, Chao;Wang, Xiao-Feng;Bai, Fan
    • Steel and Composite Structures
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    • v.21 no.3
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    • pp.517-536
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    • 2016
  • Thick steel plate is commonly found with mega steel structures but its properties have not been fully explored. Grade Q345GJ-C steel plate with thickness ranging from 60 mm to 120 mm are studied in this paper. Both the static and cyclic performance of material in different directions (horizontal and through-thickness directions) and locations (outer surface, 1/4 thickness and mid-depth) are experimentally obtained. The accumulative damage during cyclic loading is also calculated by using bilinear mixed hardening (BMH) constitutive relationship together with the Lemaitre's damage model. Results show that the static properties are better at the outer surface of thick steel plates than those at mid-depth. Properties in through-thickness direction are similar to those at mid-depth in the horizontal direction. The cyclic performance at different locations of a given plate is similar within the range of strain amplitude studied. However, when damage parameters identified from monotonic tensile tests are included in the numerical simulation of cyclic loading tests, damage is found accumulating faster at mid-depth than close to outer surface.

Family Support and Job Stress of Clinical Nurses (임상간호사의 가족지지도가 직무 스트레스에 미치는 영향)

  • Lee, Inhee;Lee, Mihee;Im, Junga;Bae, Kyungeui
    • Korean Parent-Child Health Journal
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    • v.19 no.1
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    • pp.1-8
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    • 2016
  • Purpose: This study was done to investigate the level of family support, job stress in clinical nurses end identify the participant's individual characteristics that influenced each of them. Methods: This study was a descriptive correlational study. The participants were 192 clinical nurses working in local middle range hospitals. The data were collected from May to June, 2013 and analyzed using descriptive statistics, t-test and Pearson's correlation by PASW statistics20. Results: The item mean score for family support was 21.01 and job stress was 98.89. There was a statistically significant negative correlation between family support and job stress (r=-.12). The level of job stress differed according to age (p=.014), duration of career (p=.013), department area (p<.001), position (p=.005), work duty form (p<.001), family member (p=.021), burden (p=.031), marital status (p=.001) and satisfaction (p<.001). Conclusion: Family support is needed to reduce job stress. Also, job satisfaction improvement programs and effective working systems should be developed to decrease the nurse's workplace stress.

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A Proposal of Energy Retrofitting Methods for Small-to-Medium Existing Building (중소규모 기존 건물의 에너지 개수 방법에 관한 실증연구)

  • Jeong, Hee-Gyu;Lee, Young-Jae;Song, Doo-Sam
    • 한국태양에너지학회:학술대회논문집
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    • 2012.03a
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    • pp.286-292
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    • 2012
  • In recent years, building energy has received much attention and there are many support system to reduce building energy consumption. In addition, It is clear that encouraging to energy efficiency investments can be beneficial to our society, because of the energy supply instability and higher energy price in Korea. Nevertheless, ESCO business, represent the existing building energy retrofit business, hardly has not expanded in Korea. besides, in the case of existing building, it is more difficult to achieve the energy retrofit measures than new building, due to the existing buildings have attributes such as a long life and a lots of energy factor, etc. Therefore, for activate ESCO business and expand ESCO bussiness target to small-to-medium building, it is needed to optimization of retrofitting methods for existing small-to medium buildings in Korea. this research was to derive energy retrofit methods through the energy audit and analysis performed for a small-to-medium building located in Suwon, Korea.

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Effect of the building envelope on heating and cooling load in super tall building considering the meteorological changes with height (높이별 기상변화를 고려한 초고층 건축물의 외피종류별 냉난방 부하특성 분석)

  • Choi, Jong-Kyu;Kim, Yang-Soo;Song, Doo-Sam
    • 한국태양에너지학회:학술대회논문집
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    • 2012.03a
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    • pp.337-344
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    • 2012
  • Today, the number of super tall buildings are under construction or being planed in Middle East and Asian Countries. For example the burj Khalifa, the tallest building in the world, is completed in 2008 and the height of that is about 800m. Also, Lotte World Tower is under construction in Korea. External environmental conditions such as wind speed, air temperature, humidity and solar radiation around the super tall building differs according to the building height due to the vertical micro climate change. However, the meteorological information used for AC design of building is obtained typically from standard surface meterological station data(~2m above the ground). In this paper the effect of the building envelope on heating and cooling load in super tall building considering the meteorological changes with height was analyzed with simulation method. As results of this research, the guideline to select the building envelop alternatives for super tall building will be suggested in this paper.

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Post Catch-Up Innovation and Development of Creative Talent in Korea: Limitations and Challenges

  • Seong, Jieun;Kim, Wangdong
    • STI Policy Review
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    • v.1 no.3
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    • pp.39-51
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    • 2010
  • Korea faces challenges from the recent development catch-up countries and the absence of catch up incentives. For Korea to solve the issue of post catch-up problems and create a new development path based on creative innovation, there is an urgent need to secure a system design capability for the production of creative knowledge and talent that can create a competitive society. However, the conservative inclination and a lack of a customer-oriented attitude of Korean universities and professors leads to a standardization of talent and a passive restructuring of the curriculum by universities instead of a direct correspondence with the demands of companies and society. The compatibility of Korean university education with the demands of society remains the lowest in the world and creative education in Korea faces a difficult situation. The world is transforming from a knowledge-based economy to a creativity-based economy and a competitive society will led by creativity, not by knowledge. The success of a country in nurturing creative talent will determine its future national competitiveness. For Korea to be become a global leader in the new era of creativity, it needs to make proactive preparations. It is imperative for Korea to transform the educational system from the previous cramming system to a creativity-nurturing system.

Port Competition in East Asia and Korean Strategy

  • Chang, Young-Tae
    • Journal of Korea Port Economic Association
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    • v.17 no.2
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    • pp.29-59
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    • 2001
  • This paper aims to describe port competition in East Asia and the Korean government's port strategy. In doing so, the paper provides an overview of global changes in international trade, the shipping industry and the port business. It also delineates the status of port competition in the region. Particular examples are taken from the competition among the ports of Hong Kong, Singapore, and Malaysia, as well as those of Pusan and Kwangyang, Kaohsiung, Kobe, and Shanghai and Yantian. The port competition in East Asia is reviewed and classified in two groups: north-tier competition among traditional major players, such as Kobe and Pusan, and dark horses such as Shanghai, Kwangyang and perhaps Yokohama; and south-tier competition among the three traditionally big players Kaohsiung, Hong Kong and Singapore, and the relative newcomers of Yantian in China, and Tanjung Pelepas In Malaysia. Due to the enlarging of ships and expansion of port activities, the boundary between the two tier frontiers breakdown, or they may even merge, into one grand frontier, in the foreseeable future. Although it appears that Asian ports are not being very aggressive in preparing for the future of mega-carrier in their plans, it is true that China, Korea and Taiwan are moving full steam ahead in comprehensively developing their container ports on a large scale. It therefore seems to be the perfect time for rival ports to explore a port alliance strategy to fight against the trend toward alliances between of many shipping lines.

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Safety Management of Event Place (이벤트 행사장의 안전관리)

  • 권영국
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.23 no.58
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    • pp.41-47
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    • 2000
  • Global(mega) event has increased throughout the 1990s, with the biggest surge occurring in the Asia-Pacific region. Along with this upward trend, competition for more desirable tourists is also surging, so destinations cannot be complacent (Getz, 1997). Event is appearing as the powerful method in the fierce competition around the industry. International events like 99 Hanam Environment Expo have been held annually in Korea since 1991 in which the local government system started. The main roles of event are to enhance the image of communities and attract tourists (Kotler and Haider and Rein, 1993), to strengthen destination attractiveness as drawing power (Mill and Morrison, 1985), and so on. Focused on the destination image, the research (Sirakaya and Sheppard and McLellan, 1997) about the effect of perceived safety at a potential vacation destination showed that destination marketers, travel agents, and hospitality industry members should be concerned with improving their images when such images are negative with regard to safety. Event industry in Korea does not seriously recognize the importance of the safety management against accidents known for tarnishing the destination images. Moreover few safety standards or studies for event industry can be found. This paper investigated the safety factors considered by visitors of 99 Hanam Environment Expo and analyzed the correlation between the safety factors and the demographic characteristics of the visitors.

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Subdivision of Precambrian Time and Precambrian Stratigraphy of North-eastern Asia and some problems on the Korean Geological terms (선캠브리아의 지질시대 구분 및 동북 아시아 선캠브리아의 층서와 이에 관한 우리말 용어의 문제점)

    • The Journal of the Petrological Society of Korea
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    • v.5 no.1
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    • pp.10-20
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    • 1996
  • The increament of crustal thickness, continental growth and evolution, plate tectonic movements, and mega-impacts of meteorites have been worldwidely studied in the subdivision of Precambrian. In many subdivision methods of Precambrian Eon and Eonthem, the division based on the principle of the Plate tctonic movement referred internationally, is as follows, $L^AT_EX$ The rationality of this subdivision and some problems in the currently adopted stratigraphic subdivision of Precambrian Eonthem will by commented, and the validity of English and Korean Geological terminology on the Precambrian stratigraphy of northeastern Asia will be discussed also.

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