• 한국전산구조공학회논문집
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• 제20권5호
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• pp.557-563
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• 2007

사장교 케이블은 구조적으로 휨강성과 감쇠력이 작아 풍우에 의해 쉽게 유해진동이 발생한다. 이러한 풍우진동을 저감시키기 위한 효과적인 방법으로 부가댐퍼를 장착하여 케이블의 감쇠력을 증가시키는 제어시스템이 널리 사용되어왔다. 그러나 댐퍼를 케이블의 정착부 부근에 설치할 수밖에 없는 구조적 한계로 인하여 충분한 감쇠력을 발휘하기 어렵다. 그러므로 본 논문은 수동제어시스템 보다 효과적으로 풍하중에 의한 케이블 진동을 제어하기 위한 능동제어시스템을 제안하였다. 제안된 능동제어시스템은 케이블의 정착단에 베어링 장치를 장착하여 케이블 단부에서 횡방향 변위가 가능하도록 모델링 하였으며, 앵커리지 내부에 장착된 능동댐퍼를 이용하여 적절한 제어력을 제공하도록 하였다. 능동제어를 위하여 최적제어 이론을 이용 LQG 조정기를 설계하였으며, 수치해석은 실제 교량인 서해대교의 최장 케이블을 대상으로 하여 기존의 댐퍼 시스템과 수동, 능동 댐퍼 부착에 따른 케이블의 진동제어성능을 비교 및 분석하였다. 연구결과 제안된 능동제어시스템은 효과적으로 사장교 케이블의 진동을 저감시킬 수 있는 시스템임을 입증하였으며, 기존의 부가댐퍼 시스템 보다 효과적으로 진동을 저감시킬 수 있을 것으로 사료된다.

• 한국의료질향상학회지
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• 제2권2호
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• pp.56-71
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• 1996

Background : Review of readmissions in health care facilities is necessary from the viewpoint of both economic concerns and quality considerations. To identify the characteristics, factors, and causes of multiple admissions in comparison with single admissions is essential for both providers and payers in order to assure quality care and efficient use of medical resources. Methods: All discharges from an university hospital in 1993 were analyzed, and the characteristics of multiple admissions were identified and were compared with those of single admissions by using the data bases of the discharge abstract and billing for reimbursement. Medical records of patients readmitted within 6 days after the previous discharge were reviewed to identify the reasons for such prompt readmission. Statistical analysis between groups of patients were performed by using SPSS. Result : The mean age was higher in multiple admissions than those of single admissions, and the average length of stay was longer in multiple admissions than in single admissions. The hospital cost per day is higher in single admissions while the cost per case is higher in multiple admissions. More than half of readmissions occurred within one month after the preceding discharges. Above 15% of the readmission within 6 days after the preceding discharges seemed to have close relationship with quality of care provided during the preceding hospitalization. The death rate of the patients readmitted within 6 days was the highest in comparison with multiple admissions and single admissions. Conclusion : Potential preventable readmissions should be reduced by identifying characteristics of multiple admissions, especially unplanned readmission, and by applying some interventions such as standard predischarge assessment or careful follow-up care after discharge for high risk readmission groups. As the results of these efforts, health care facilities could achieve quality improvement in medical care, and effective use of hospital resources.

• 한국식생활문화학회지
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• 제27권3호
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• pp.240-250
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• 2012

This study was performed to investigate the consumption of coffee beverages and energy contribution ratios of coffee beverages and accompanying snacks by college students in Deajeon City and Chungnam Province in Korea. Questionnaire survey, dietary survey, and snack survey using food record method during 3-days were carried out. As a result, we found that 86.9% of male students and 75.6% of female students consumed coffee beverages usually, with no differences between the two groups. However, the frequency of coffee beverages consumed by female students out-numbered that of male students by 1 cup a day to 1-2 cups a week (p<0.05). Furthermore, male students most likely consumed coffee beverages at schools or academies, but female students consumed them at coffee shops (p<0.01). The reasons male students gave to consume coffee beverages were for scent, taste, fatigue, and to stay awake. Similarly, the reasons female students gave to consume coffee beverages were for scent, taste, habit, and to stay awake (p<0.01). Fully 58.1% of male students and 80.0% of female students ate snacks along with coffee beverages (p<0.01). Most male students substituted a coffee beverage and accompanying snack for a regular meal once a month. Female students were doing it at most 2-3 times a month (p<0.05). The mean daily dietary energy intake of male students was 1,924 kcal/d, and of female students was 1,518 kcal/d (p<0.001), which both were below the estimated energy requirements. Male students obtained 285.6 kcal/d and female students obtained 289.5 kcal/d from coffee beverages and accompanying snacks. There was a significant different in dietary intake of energy (p<0.05), calcium, and iron (p<0.001) for each ratio of reference intake between male and female students. The students who ate larger amounts of coffee beverages and accompanying snacks consumed less dietary energy, protein, calcium, and iron, respectively (p<0.05). These results show that many students consume coffee beverages regularly and obtain large amounts of energy from coffee beverages and accompanying snacks. It also shows that student's dietary nutrient intake tends to be poorer, as he or she obtains more energy from coffee beverages and accompanying snacks. Therefore, it is critical to monitor the influence of consumption of coffee beverages and accompanying snacks on the dietary nutrient intakes and health of college students, and to provide nutrition education about the proper consumption of coffee beverages and accompanying snacks based on scientific evidence.

• 보건교육건강증진학회지
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• 제23권5호
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• pp.47-73
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• 2006

Objectives: This study aims to identify gaps between knowledge regarding migration and the spread of HIV/AIDS, to improve understanding of migrants with HIV/AIDS and their human rights, and to make suggestions for Korean policy makers to reform laws and policies towards granting migrants with HIV/AIDS more human rights and access to treatment and care. Methods: This study is based on an extensive literature review, questionnaire surveys and in-depth interviews from randomly selected 8 countries from 5 different continents: Japan from Asia; Australia from Oceania; Finland, Germany, Ireland and United Kingdom(UK) from Europe; and Canada and United States of America(USA) in North America. Results: This study has found that Korea has a discriminating policy regarding HIV/AIDS and foreigners. Classifying HIV/AIDS into a legal communicable disease, it requires a presentation of HIV/AIDS test results from foreigners wanting a long-term stay before entering. In principle, foreigners with HIV/AIDS cannot either enter or stay in Korea. If they are known infected with HIV/AIDS by any reason, they became to face an immediate deportation regardless of their sojourn statuses and purposes. Conclusion: With the results, this study suggests three reasons why Korean government needs to change the current HIV/AIDS policy on foreigners: 1) HIV-related travel restrictions have no public health justification, 2) its strict HIV/AIDS policy on foreigners could result in restriction on the mobility and migration of its people by the other countries, inversely, and 3) it needs to meet international guidelines and to observe conventions that international organizations suggest to maintain its status as a member of the international society.

• 가정간호학회지
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• 제1권
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• pp.71-76
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• 1993

This study was carried out to investigate agreement, content and demand for home nursing care of hospital inpatients in brain, spain and musculoskeletal diseases. The data was collected by interviewing with 242 patients who were hospitalized in university hospital on Taegu, from September 6,60 October 9, 1993. Of 242 patients, 66.1% agreed to home nursing care system and rate of agreement was highest between 30 years to 49 years of age as 40.4% in general characteristics. The rate of agreement according to type of diagnosis was highest inpatients with spinal diseases as 75.6% according to functional status was the highest in patients who had daily living activity freely as 69.4% according to prognosis in patients at terminal stage as 80.0% and the rate of agreement to home nursing care of patients who wanted early discharge was 73.9% The first-ranking reasons of agreement to home nursing care was asking for continuous relationship with doctor as 37.3% and there was statistically significant difference in reasons of agreement to home nursing care according to functional status of patients. The first-ranking reason of early discharge among patients who wanted early discharge(74.8%) was because of long time stay in hospital. Among 23 items of nursing activity that patient wanted, the first-ranking item was recovery promotion, prevention of complication, education and counseling for health as 76.4%, drug management was 2nd-ranking item as 62.1% and the third was regular checking of vital signs as 55.9%, The lowest item of demand for home nursing care was hospice care(3.9%) and airway keep(9.1%).

• 한국조리학회지
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• 제20권2호
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• pp.214-231
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• 2014

본 연구는 중국인 유학생의 전반적인 음주 특성, 막걸리의 음용 실태 및 인식을 알아보고자 하였다. 중국인 유학생 550명을 대상으로 2012년 5월 2일부터 6월 30일까지 설문조사를 실시하였으며, 461부를 최종 분석에 사용하였다. 한국거주기간이 길수록 한 달 용돈이 많을수록 1회 음주량과 음주 빈도가 높았으며, 맥주를 가장 선호하였고 막걸리를 두 번째로 선호하였다. 술을 마시는 학생의 97.5%가 막걸리를 마셔본 경험이 있으며, 막걸리 음주 빈도와 1회 음주량은 한국거주기간이 길수록 증가하였으며, 주로 음식점과 전문 주점에서 마시는 것으로 나타났다. 막걸리의 맛과 마시는 분위기를 선호하며, 막걸리의 맛과 두통을 비선호하였다. 막걸리 종류에 대한 인지도는 낮았으며, 막걸리 가격과 건강 증진 효과에 대해서 각각 92.4%와 85.8%가 긍정적인 답변을 하였다. 이상의 결과는 중국인의 기호에 적합하며 두통과 같은 숙취를 개선한 고품질 막걸리를 개발하고, 건강 지향적인 웰빙주임을 적극적으로 홍보하는 마케팅 전략이 필요함을 시사한다.

• 한국실내디자인학회논문집
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• 제23권2호
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• pp.182-192
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• 2014

Demands for geriatric hospital have increased in an era of rapidly aging population. Most of aged patients tend to stay in institutions for long terms. This means that the patient rooms of geriatric hospital should be given different considerations from those of normal hospital in designing interior features. They should be a homelike places for the aged patients and designed to take care of specific needs of the aged. However, most of geriatric hospitals are designed with little attention to such point. They appear almost same to normal ones. This study attempts to examine how users evaluate patients' rooms. The users are nurses, care-givers and family members of aged patients in six geriatric hospitals in Busan. They rated 12 features of patient rooms from 0 point to 100 points and described reasons why they rated in that way. Also, the walk-through was done for these six hospitals. 12 features are sizes of patient rooms, sizes and fixtures of bathrooms, sizes and locations of windows, bed layout, numbers and types of chairs, sizes and types of closet, lighting, color scheme, finishes of floor and wall, and interior design tone. Followings are findings : The users evaluated patients' rooms relatively positive. However, extra chairs for visitors, closet in patients rooms and storage in bathroom, and sizes of patients rooms and bathrooms were evaluated relatively negative.

• 영재교육연구
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• 제3_4권1호
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• pp.139-147
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• 1994

The "First Step to Nobel Prize in Physics" is an annual competition in research projects in physics for secondary (high) school pupils organized by the Institute od Physics, Polish Academy of Sciences. This year the second competition of that type has been completed. Pupils from 36 countries took part in the first two competitions, what certainly should be treated as a great success. We have organized the above competition for the following reasons. During our contacts with secondary school pupils we discovered that some of them try to perform different physical investigations by themselves: at schools, in some laboratories and even at home. Then we decided to organize the National Competition in Pupils' Research Projects in Physics and next - after gaining some experience in the national scale - the international competition "First Step to Nobel Prize in Physics". Our aim was to recognize the effort of the pupils, give them a chance to compare their own achievements with the achievements of their colleagues and organize their work. One should underline that the "First Step" refers to quite different features (long term research work) of the pupils than the International Physics Olympiad (solving well formulated physics problems). The prizes in our competition are not typical. Instead of buying some items for our winners we decided to invite them to our Institute for a research stay. In our opinion in case of people whose hobby is physics such a form of prize is more valuable and more instructive than anything else. The aim of this article is to discuss a genesis of the competition, to present conditions of participation and to discuss the results.

• Advances in pediatric surgery
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• 제19권2호
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• pp.90-97
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• 2013

Laparoscopic surgery has become popular in the past few decades, owing to less postoperative pain, fast recovery, and better cosmetic outcomes. The laparoscopic approach has been employed in pediatric surgery for the same reasons. After the first attempts of single incision laparoscopic appendectomy in pediatrics in 1998, single incision laparoscopic surgery (SILS) has recently been proven to be safe and feasible for the pediatric population. However, limitations have been reported for SILS, such as the wide learning curve, compared to standard laparoscopic surgery, and the restricted number of hospitals with surgical training programs including SILS. In this study, we intend to present our initial experiences with SILS in children, and to describe the technique, instruments used, and outcomes. This is a retrospective study of 71 pediatric patients who underwent SILS, at a tertiary medical center, between September, 2012 and August, 2013. Electronic medical records were reviewed for demographics, type of procedure, operation time, use of additional ports, conversion to open surgery, complications and hospital stay. Additional ports were inserted in 4 cases, for the purpose of traction. Postoperative complications were noted in 13 cases, which were mostly related to wound inflammation or formation of granulation tissue. According to our analyses, patients with complications had significantly longer use and more frequent use of pain killers. Notwithstanding the small sample size, many of the procedures performed in pediatric patients seem to be possible with SILS.

• 보건의료산업학회지
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• 제14권1호
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• pp.177-194
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• 2020

Objectives: This study aims to identify the drinking environment and drinking culture in an area with high drinking rates in order to provide the basis for the development of a drinking intervention program. Methods: Forty-six local experts and residents participated in focus group interviews that mainly asked questions about the drinking environment in the community, the culture and behavior of drinking, and the community efforts to reduce the drinking rates. The interviews of four groups were transcribed and analyzed. Results: Drinking environments and cultures were categorized into the following five themes: high physical accessibility to drinking, type of housing and long duration of stay in the same region, drinking-friendly culture and daily life events, various reasons and patterns of drinking, and lack of health (education) programs. Conclusions: Community efforts are required to make the residents aware of how the local environment is related to the high drinking rates in their community. Further, the study underlines the need for the community to make efforts to create an environment where drinking rates are low, and foster a diverse leisure culture.