http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 최얼 ( Eol Choi ) (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
-
함정 근무 요원에서 발생한 배멀미의 인구학적 동태 및 특성
최얼 ( Eol Choi ) 국군의무사령부 2015 대한군진의학학술지 Vol.46 No.1
Objective; Sea sickness can be a debilitating condition and can be dangerous if the naval personnel appointed in key role in the ship. The objective of this study was to report and evaluate the incidence, severity and symptoms of sea sickness among navy crew of a destroyer Method; The study was conducted over a period of 3 months. This study included 183 healthy male and female sailors and aged ranges between 19 to 47 years. Data included sailor's demographics, duration at sea, types of symptoms, severity of sea sickness, incidence of sea sickness in relation to exposure, and sea condition. The data was collected by questionnaire. Result; Total 76 (41.5%) sailors were aboard for more than 3 years. Sailors that had 1-3 years experience were 12 (6.6%). And sailors that had 2-6 months experience were 48 (26.2%). Total 62 (33.9%) sailors experienced sea sickness; those were fatigue (48.4%), nausea (48.4%), vomiting (33.9%), abdominal discomfort (32.3%), vertigo (30.6%), dizziness (17.7%). Majority were mild (41.9%) to moderate (35.5%) inconvenience, and self limiting. Excuse from duty for whole sea period was required in 5 (8.1%). Incidence of sea sickness observed in first exposure in 26 (41.9%) cases, and decreased gradually. But some sailors experienced sea sickness always (12.9%) or sometimes consistently (25.8%). Sailors that had sea sickness in moderate condition of sea (wave height 2-3m) were 26 (41.9%), in severe condition of sea (wave height more than 3m) were 17 (27.4%). 28 (45.2%) sailors took a drug (Easylong®, dimenhydrinate) and 22 (78.6%) showed improvement. Other 40 sailors neither took a drug nor showed improvement, but eventually overcame the symptom by change of sea condition (40%) or resting (20%), adaptation (20%), location change (17.5%). They seem to realize the knack for reducing the stimulation of wave.. Conclusion; More studies may be needed for better confirmation and finding out the relationship about adaptation and recurrence.
-
군내 감염성 질환에 있어 개인위생 및 생활 방식 관리의 중요성
최얼 ( Eol Choi ) 국군의무사령부 2015 대한군진의학학술지 Vol.46 No.1
Objective; Infectious disease(upper respiratory infection, diarrheal disease) in military force can worsen largely the combat strength. The purpose of this study is to investigate the relation of personal hygiene or life style and infectious disease. Method; The study was conducted over a period of 3 months. This study included 157 healthy male and female sailors and aged ranges between 19 to 49 years. The data was collected by questionnaire. Data included frequency of shower and handwashing, nail clipping, toothbrushing. Answers for this variables were regrouped into two category by frequency. And analyzed by χ2-test with other variables like presence of febrile sense in last three months and common cold, diarrhea in last month. And then, stepwise logistic regression analysis was conducted with variables that were significant in χ2-test. Result; Presence of common cold in last month was related with frequency of shower in a day, severity of stress, frequency of nail clipping. Presence of febrile sense in last three months was related with hours of sleeping in a day, hours of exercise in a week, severity of stress. Diarrheal group did less handwahsing before meal significantly compared with non-diarrheal group. Conclusion; Management of stress, frequent nail clipping and shower, proper sleeping and exercise were needed for preservation of combat strength in military force. And adequate handwashing before meal should be emphasized for prevention of diarrhea.
-
변형된 샤논 엔트로피식을 이용한 온실가스 농도변화량 예측
김상목 ( Sang Mok Kim ),이도행 ( Do Haeng Lee ),최얼 ( Eol Choi ),고미솔 ( Mi Sol Koh ),양재규 ( Jae Kyu Yang ) 한국환경과학회 2013 한국환경과학회지 Vol.22 No.11
Entropy is a measure of disorder or uncertainty. This terminology is qualitatively used in the understanding of its correlation to pollution in the environmental area. In this research, three different entropies were defined and characterized in order to quantify the qualitative entropy previously used in the environmental science. We are dealing with newly defined distinct entropies E1, E2, and E3 originated from Shannon entropy in the information theory, reflecting concentration of three major green house gases CO2, N2O and CH4 represented as the probability variables. First, E1 is to evaluate the total amount of entropy from concentration difference of each green house gas with respect to three periods, due to industrial revolution, post-industrial revolution, and information revolution, respectively. Next, E2 is to evaluate the entropy reflecting the increasing of the logarithm base along with the accumulated time unit. Lastly, E3 is to evaluate the entropy with a fixed logarithm base by 2 depending on the time. Analytical results are as follows. E1 shows the degree of prediction reliability with respect to variation of green house gases. As E1 increased, the concentration variation becomes stabilized, so that it follows from linear correlation. E2 is a valid indicator for the mutual comparison of those green house gases. Although E3 locally varies within specific periods, it eventually follows a logarithmic curve like a similar pattern observed in thermodynamic entropy.
ScienceON연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
