• 항공우주시스템공학회지
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• 제17권4호
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• pp.126-132
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• 2023

최근 항공분야에서는 온실가스 배출 저감을 위한 친환경 기술이 강조되면서 전기를 주동력원으로 기계적인 직진, 회전 운동을 제어하는 전기식 작동기의 다양한 연구가 진행되고 있다. 본 연구에서는 단일통로 항공기 전륜조향용 전기식 작동기의 피로수명을 평가하였다. 구조해석을 통해 작동기의 취약부위들을 선정하여 이들에 대한 단위하중 응력표를 구축하였고, 각 하중 프로파일에 대한 대표응력을 계산하였다. 또한 낙수계수법으로 대표응력 그룹의 개별 프로파일을 추출하고, 이를 소재의 S-N 선도에 적용하여 개별 프로파일에 대한 손상을 계산하였다. 최종적으로 손상누적법칙으로 취약 부위들에서의 총 손상을 산출하였고, 단일통로 항공기 전륜조향용 전기식 작동기의 취약 부위들에 대한 피로수명을 평가하였다.

• 청소년시설환경
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• 제10권4호
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• pp.91-104
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• 2012

This study investigated the process of how adolescents get caught into a net of online prostitution and get out of it. An in-depth interview was done with 43 adolescents who experienced online prostitution. It was found that 38 of 43 interviewees(88%) had an experience of running away from home and that 23 adolescents(53%) among them got involved in online prostitution for living expenses. Leaving home was a major route to prostitution. Fifty six percents experienced prostitution at the ages of 16 or 17 for the first time. The age group of 13-15 took 35%, which provided an evidence that most prostitutes experienced young. Moreover, the frequency of prostitution was shocking. Those who prostituted themselves 'more than 10, but less than 50 times(40%)' were more than those who did 'less than 10 times(37%).' Those who did 'more than 100 times' or even countlessly were 21%. Violation of human rights such as perverted sex, violence, sexual violence, threat, abduction, fraud, extortion by threats, and infection of sexually transmitted disease(STD) occurred quite often. In addition, the process of adolescent online prostitution categorized into the three stages: vulnerable stage, chaotic stage, and stabilized(out-of-prostitution) stage. It was possible that the three stages moved back and forth. The process shifted from the vulnerable stage to the chaotic one, and could get back to the vulnerable one. Or the speed of moving forward to the next sage could be accelerated if the individual management skills were coupled with support from many people and institutions.

• 가정∙방문간호학회지
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• 제17권1호
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• pp.28-35
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• 2010

Purpose: The study compared the hypertension care efficacy of a case management intervention program for registered clients. Methods: The nonequivalent control group pretest-posttest design involved 53 registered hypertensive patients of a customized visiting health care service in S-city(n=28 experimental group, n=25 control group). Data collection and case management intervention were carried out from April to July, 2009. The experimental group had six home visits and two phone calls, and the control group had two home visits during the 8-week period. Outcome variables for test hypotheses were changes in physiologic index (blood pressure and total cholesterol) and degree of self-management performance and confidence. Results: Repeated measure ANOVA and t-test of means revealed significant differences before and after program for systolic and diastolic blood pressure and self-management performance and confidence, but no significant difference concerning total cholesterol. Conclusion: A case management program can have positive effects on blood pressure control and self management. However, research is needed to create a more effective case management for vulnerable patient populations.

• 융합보안논문지
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• 제10권3호
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• pp.29-41
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• 2010

전장 지역에서 각종 전술정보를 실시간으로 수집할 수 있는 센서기반의 감시체계인 감시정찰 센서네트워크는 Sensor-to-Shooter 개념의 네트워크 중심전 환경에서 핵심 역할을 수행한다. 그러나 네트워크를 구성하는 센서노드들의 자원제약적 특성과 무선통신 사용 등 센서네트워크 자체의 특성으로 인해 감시정찰 센서네트워크는 일반 네트워크에 비해 보안이 취약해 질 수 있다. 이에 본 논문에서는 감시정찰 센서네트워크 운용 간 기밀성, 무결성, 가용성 및 인증 등을 보장하기 위한 기반이 되는 그룹 키 관리 기법을 제안한다. 제안된 키 관리 기법은 감시정찰 센서네트워크의 토폴로지 특성과 확률론적 키 공유를 기반으로 그룹 키를 생성하고 분배하며, 그룹 키분배에 소요되는 통신 비용은 O(logn)이다.

• Perspectives in Nursing Science
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• 제16권1호
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• pp.25-34
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• 2019

Purpose: Alcohol use in South Korean women, particularly college students, is increasing. Women are more vulnerable than men to alcohol use, which puts them at greater risk of physical and psychosocial problems. Some studies have reported that on failing to find meaning in life, many South Korean college students experience depression, subsequently using alcohol as a coping mechanism. This study aimed to develop a logotherapeutic program and identify its effects on meaning in life, depression, and problem drinking among female college students. Methods: This study was a quasi-experimental trial. The participants were female college students who scored over 8 in the Alcohol Use Disorders Identification Test (AUDIT). Twenty-four students were assigned to the experimental group and twenty-three to the control group. Three scales were used in this study: the Purpose in Life test, Beck Depression Inventory, and AUDIT. The data were analyzed using the Mann-Whitney test in SPSS/WIN 12.0. Results: After the conclusion of the logotherapeutic program, the level of meaning in life and depression were more greatly improved in the experimental group than the control group. Conclusion: The logotherapeutic program is an effective method to help female college students find meaning in life and reduce depression in this population.

• 지역사회간호학회지
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• 제26권4호
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• pp.390-397
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• 2015

Purpose: The purpose of this study was to explore practice-based evidence for health promotion in vulnerable populations with hypertension in primary health care settings. Methods: Two methodological procedures were adopted for this triangulation study. In the first phase, the sample was obtained from the computerized clinical data repository of a community nursing center. A total of 286 clients were assessed for hypertension as an actual circulation problem as coded in the Omaha System. In the second phase, a qualitative focus group was surveyed through semi-structured interviews conducted by nine advanced practice nurses who had been serving the hypertensive patients. Results: The community nurses provided essential primary healthcare services including health teaching guidance and counseling, and surveillance to vulnerable populations living in medically underserved community. There was a significant positive correlation between knowledge and behavior (r=.53, p<.01), between knowledge and health status (r=.40, p<.05), and between behavior and health status (r=.48, p<.01). Conclusion: This triangulation study encompassed not only quantitative findings from the computerized records of clients but also other information acquired from advanced practice nurses. This study contributes to understanding the importance of health promotion nursing interventions even with populations already diagnosed with chronic diseases such as hypertension.

• 보건교육건강증진학회지
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• 제34권1호
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• pp.25-34
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• 2017

Objectives: Although the number of the oldest-old is rapidly increasing due to longevity, very little is known about the trajectory of depressive symptoms(DS) and its related factors among the oldest-old. Much less is known about whether the trajectory of DS differs by gender among the oldest-old. The current study aims (1) to estimate the trajectory of DS and (2) to examine whether the trajectory differs by gender among the oldest-old. Methods: Sample consists of 296 persons aged 85 and over who participated in the Korean Welfare Panel Study data. Data were processed using the latent growth curve modeling to estimate the trajectory and multi-group SEM to examine gender difference. Results: This study showed that (1) the trajectory of DS was increasing over time and (2) the DS trajectory of males was much more rapidly increasing than that of females, indicating male oldest old are more vulnerable to depression than female oldest old in later life. Conclusions: Given the fact that females are known to be more vulnerable to depression, the findings are counterintuitive to the previous knowledge on depression and gender difference. Based on the findings, implications for intervention and education related to DS among the oldest-old.

• 대한간호학회지
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• 제37권2호
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• pp.201-207
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• 2007

Purpose. The purpose of this study was to determine the subjects' health status according to the needs of visiting health and the function of the family in home care nursing. Sample and Method. The data collection period was from 07/01/04 to 10/31/04 and the subjects were 488 of those above 60 years of age staying at home or living alone who registered at a visiting health service of public health center at an urban area in Korea. This survey was carried out by visiting health nurses and participation was agreed on by the elderly people. Results. The extent of the subjects' total health status to the general characteristics had differences according to the age, sex, monthly income, perceived health status, known functional disorder, and yes-or-no for disease. At all health status domains, visiting health need care in the group I was very lower than one in II, III, or IV groups. Also the severe dysfunctional family was lower than lightly dysfunctional family and normal functional family in all health status domains. Conclusion. Nurses must provide their characteristics considered nursing intervention for the elderly who have high visiting health needs and severe dysfunctional family with vulnerable health care.

• 한국환경과학회지
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• 제28권2호
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• pp.277-285
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• 2019

Heat watch warning systems are operating in Korea and several other countries (China, the United Kingdom, France, the United States, Germany, Australia, and Japan). The heat wave indices used in this system are the heat index, perceived temperature, the wet bulb globe temperature, and the daily maximum temperature. To improve the heat wave advisory and warning system, some suggestions have been made. The meteorological-health index (i.e., indirect index), has especially been proposed in previous studies. This information should be provided not only to vulnerable groups (seniors, infants, and children), but also to outdoor workers who may be particularly exposed to heat waves. In addition, to have sufficient preemptive response times, the need for an extension of the heat watch warning period was suggested. Finally, the subdivision of administrative units and risk stages was proposed.

• 한국농촌간호학회지
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• 제16권1호
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• pp.18-28
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• 2021

Purpose: This study attempted to confirm whether the suicide prevention effect could be achieved by managing the frailty of the elderly in rural areas. Methods: This study is a single-group pre-post study design. The frailty management program was applied twice a week for 12 weeks for the vulnerable elderly in the rural area from 16th April to 31st May in 2020. The program consisted of physical exercise, health education on nutrition management and disease control, cognitive training, and protein drink provision. Results: The average age of the participants was 77.1 years, and they lived alone (88.6%). As a result of providing the program, there were positive results such as increase in body strength (pre 12.27: post 13.27) and weight (pre 58.51: post 59.13), and decrease in depression (pre 4.66: post 1.20), and there was no statistically significant change in quality of life, Time Up & Go, and BMI. Conclusion: Frailty should be managed to prevent suicide in the elderly. It is necessary to expand and apply various programs that combine physical functions and emotional interventions such as health education, and exercise to maintain muscle strength.