• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
• /
• v.7 no.11
• /
• pp.525-536
• /
• 2017

Purpose: The aim of this study was to identify the factors influencing ICU (intensive care units) length of stay of adult patients with critical illness. Methods: This study was adopted descriptive design. 270 patients who were admitted to ICU in general hospital, Seoul were analyzed. Results: A total of 270 patients, 116 (43%) patients had stayed more than 5 days. The length of stay of intensive care unit was significant positive correlation with the FCI(Functional Comobidity Index) score(r=0.33, p<.001) and APACHE(Aacute Physiology and Chronic Health Evlauaion) II(r=0.19, p=.001). In multiple logistic regression, the predictors of ICU length of stay were admission route (p=0.013), FCI score (p<0.001), APACHE II(p=0.012). Conclusions: Heatlh care providers in ICU should be aware that patients who admit to emergency departments and have higher disease severity are more considered to reduce their ICU length of stays.

• 전기의세계
• /
• v.23 no.6
• /
• pp.7-11
• /
• 1974

본고는 UNESCO 교환교수계획에 의거, 지난 6월 25일부터 7월 18일까지의 약 3주간 일본 동경대학 공학부 전기.전자공학과에 체류하면서 그곳에서의 교육과 연구체제에 접할 기회가 있었다. 체류기간중 필자가 직접 보고, 듣고, 느낀 그곳에서의 교육, 연구 및 산학협동체제에 관하여 기술하겠다.

• The Journal of the Korea Contents Association
• /
• v.12 no.6
• /
• pp.111-119
• /
• 2012

This study examines determinants of user immersion for Korean drama and entertainment genre programs among Chinese students in Korea. The major results are as follows: firstly, user immersion for entertainment genre was more greater than that of drama genre. Although drama was tended to evaluated based on star appearance and narrative structure, entertainment program was favored by its pleasure and vividness. Secondly, there were gender differences for entertainment and drama genre programs between male and female respondents. Also, there was a correlation between drama immersion and duration of stay. Thirdly, although determinants of drama immersion were program characteristics, duration of stay and drama preference, those of entertainment immersion were program characteristics, appearance of star players and entertainment preference.

• Korean Journal of School Psychology
• /
• v.8 no.3
• /
• pp.379-403
• /
• 2011

This study examined coping strategies and perceived changes of the Chinese international students in South Korea. A total of 56 Chinese students participated and data was analyzed using the concept mapping method. The results showed that Chinese international students adopted developing language proficiency and using social networks as important coping strategies. They also perceived a wide range of changes including changes in the cultural and personal self. However, the perception of these coping strategies and changes differed by the length of stay. Chinese international students who stayed longer reported using specific coping strategies for mood regulation, which was distinctive from the coping strategies used by students who stayed for a shorter period of time. Students who stayed longer perceived negative changes as well as positive changes, while students who stayed for a shorter period reported predominantly positive changes. The findings indicate that university staff needs to understand and sensitively respond to the distinctive experiences of Chinese international students which vary across time.

• KSCE Journal of Civil and Environmental Engineering Research
• /
• v.5 no.4
• /
• pp.31-44
• /
• 1985

The application of anaerobic attached microbial films in the expanded bed process has recently been examined at high temperatures ($55^{\circ}C$) and with particulate matter. Extrapolation of the kinetics suggested that waste activated sludge (WAS) could be efficiently digested at hydraulic retention times as short as six hours in the expanded bed process. This would represent a 99 percent digester reactor volume reduction and would introduce interesting solids management alternatives if such a high rate process were developed. This paper presents a summary of a 1.5 year study of the feasibility of such a process. Three continuously fed $55^{\circ}C$ laboratory reactor systems were used to define the kinetics and the site of reactions-control completely mixed reactors were compared to the expanded beds (AAFEB) with and without a hydrolysis unit preceding the attached film unit. Well defined laboratory-generated WAS was compared to actual WAS from a domestic sewage treatment facility. Sixty percent of the biodegradable organics were converted in an AAFEB at a 15-hour hydraulic retention time without hydrolysis, whereas greater than 95 perccent of the biodegradable organics were stabilized in a two-stage system consisting of a 3-day HRT hydrolysis reactor followed by a 15-hour HRT AAFEB. The limitations of this high rate process and its potential application are discussed.

• Proceedings of the Korean Society for Agricultural Machinery Conference
• /
• 2002.02a
• /
• pp.383-388
• /
• 2002

본 연구에서 구성한 바이오필터 시스템은 암모니아 가스를 대상으로 여러 조건에서 성능을 구명하였으며, 필터 설계시 중요 인자인 송풍량, 온도, 함수율, 압력강하, 체류시간들간의 관계를 구명하였다. 필터 내부의 온도 변화는 체류시간 및 압력손실에 거의 영향을 주지 않았으며, 함수율의 변화가 체류시간과 압력손실에 미치는 영향은 함수율 값이 증가할수록 체류시간은 감소했으며 반대로 압력손실은 증가하는 결과를 보였다. 이는 필터 내부의 공극률 변화로 생긴 결과라 판단된다. 송풍량은 바이오필터 효율에 절대적으로 영향을 미치며 송풍량이 증가할수록 체류시간은 감소하며 초기 제거율도 떨어진다. 미생물의 투입 여부에 따른 제거율은 미생물 접종을 하지 않은 경우 초기 흡착에 의한 영향으로 제거율이 높다가 시간이 지남에 따라 차츰 낮아져 90% 이하로 떨어지는 경향을 보였고, 균주를 접종한 경우에 있어서는 시운전 기간 동안 거의 100% 가까운 제거 성능을 보였다. 본 연구는 실험실에서 암모니아 가스만을 대상을 하여 실험하였다. 따라서 실제 축사에서 발생하는 다양한 성분의 악취와 농도에 대한 성능 검증과 개선에 대한 연구가 보다 장기간에 걸쳐 이루어져야 할 것이다. 또한 소요되는 에너지와 운전비용의 절감 등의 유지관리, 바이오필터와 타 방식과의 조합, 그리고 다양한 전처리 방식의 개발 등 여러 측면에서 바이오필터 성능 개선에 대한 연구가 병행되어야 할 것으로 판단된다.

• Journal of Korea Water Resources Association
• /
• v.33 no.3
• /
• pp.375-382
• /
• 2000

The surface hydrology of large watershed is susceptible to several preferred stable states with transitions between stable states induced by stochastic fluctuations. This comes about due to the close coupling of land surface and atmospheric interaction. An interesting and important issue is the duration of residence in each mode. In this study, mean transition tunes between the stable modes are analyzed for the Han River Basin. On the basis of historical data, the nonlinear water balance model is calibrated for the Han River Basin. The transition times between the stable modes in the model are studied based on the stochastic representation of the physical processes and on the calibrated model parameters. This study has implications for prediction of the transition time between stable modes or residence times, that is, the time the system spends in a given stable modes, since this would be equivalent to predicting the duration of drought or wet conditions.

• Korean journal of communication and information
• /
• v.22
• /
• pp.211-247
• /
• 2003

This study explored how Korean immigrants education, length of stay and English fluency affect their political socialization, mediated through traditional news media and the news Web use. Political socialization included political knowledge, interest, and participation. The media usage patterns included U.S. news media, U.S. news Web, Korean news Web, and Korean news Media use by Korean immigrants in the United State. This study found as follows. First, education, length of stay, and English fluency indirectly increased political socialization(political knowledge, interest, and participation) through their relationship with U.S. news media use. Second, U.S. news Web played a potentially important role in Korean immigrants' political socialization by increasing their political interest. Third, Korean news media partly contributed to Korean immigrants' political socialization by increasing their political interest. Fourth, Korean news Web use did not contribute to Korean immigrants' political socialization in terms of political knowledge, interest, and participation at all. In conclusion, this study found that traditional news media's role was more important than news Web's one in the process of immigrants' political socialization to the host society.

• Journal of dental hygiene science
• /
• v.15 no.1
• /
• pp.1-11
• /
• 2015

This study analyzed the tooth brushing behavior and oral health status of foreigner immigrant workers and obtained the following results. Statistical significance based on different general characteristics. Gender, educational background, period of stay, health insurance, medical expense coverage, and whether or not one has friends or regular gatherings were significant traits for frequency, while age, marital status, income, and health insurance were traits for part (p<0.05). Statistical significance (p<0.05) was found in marital status and health insurance for time used to brush teeth, period of stay and whether or not one attends a regular gathering for tooth brushing training, and gender, educational background, period of stay, roommate status, medical expense coverage, and whether or not one attends a regular gathering for supplemental oral product usage. The averages of decayed, missing, and filled teeth (DMFT) index and community periodontal index of treatment needs (CPITN) for general characteristics were 6.98 and 3.03 respectively, and gender, roommate status, income, health insurance for DMFT index, and gender, age, marital status, educational background, roommate status, income, health insurance for CPITN were statistically significant (p<0.05). Tooth brushing frequency and part showed statistical significance (p<0.05) for DMFT index based on tooth brushing behavior, while tooth brushing part and time used to brush teeth were significant for CPITN. DMFT index was high at 8.34 for '3 times or more' in tooth brushing frequency, while DMFT index was high at 7.91 and CPITN was low at 2.94 for tooth brushing part. '3 minutes or longer' in time used to brush teeth was the lowest in CPITN at 2.88. As a result of analyzing the correlation between tooth brushing behavior and DMFT index, CPITN, tooth brushing frequency and part in DMFT index, and tooth brushing part and time used to brush teeth in CPITN showed significance (p<0.05). Based on the above results, we must promote the significance of brushing teeth and implement continuous training for correct tooth brushing management to enhance the oral health of foreign immigrant workers.

• The Journal of the Korea Contents Association
• /
• v.12 no.12
• /
• pp.237-247
• /
• 2012

This study was executed to identify the influences that the social exclusion which foreign workers recognize gives to their psychological well-being. 214 foreign workers were selected as study subjects who live in Seoul and Gyunggi areas and are working for the simple function tasks like manufacturing. Study results showed that the level of social exclusion which foreign workers recognize is a little bit higher than the average but psychological well-being is lower than the average level. Psychological well-being showed statistically significant differences according to staying period, healthy conditions, Korean language proficiency and working period of current workplace by each group, but their staying status and monthly income didn't show significant differences by groups. In addition, working period in current workplace, health conditions, Korean language proficiency and consumption activities and production activities which are the subcategories of social exclusion showed significant influences to psychological well-being.