• Smart Structures and Systems
• /
• 제4권3호
• /
• pp.305-318
• /
• 2008

The development of a digital signal processor based prototype is described in relation to continuing efforts for realizing a fully self-contained active sensor system utilizing impedance-based structural health monitoring. The impedance method utilizes a piezoelectric material bonded to the structure under observation to act as both an actuator and sensor. By monitoring the electrical impedance of the piezoelectric material, insights into the health of the structured can be inferred. The active sensing system detailed in this paper interrogates a structure utilizing a self-sensing actuator and a low cost impedance method. Here, all the data processing, storage, and analysis is performed at the sensor location. A wireless transmitter is used to communicate the current status of the structure. With this new low cost, field deployable impedance analyzer, reliance on traditional expensive, bulky, and power consuming impedance analyzers is no longer necessary. A complete power analysis of the prototype is performed to determine the validity of power harvesting being utilized for self-containment of the hardware. Experimental validation of the prototype on a representative structure is also performed and compared to traditional methods of damage detection.

• 한국정보통신학회:학술대회논문집
• /
• 한국정보통신학회 2016년도 춘계학술대회
• /
• pp.605-606
• /
• 2016

최근 다양한 웨어러블 디바이스들을 활용하여 새로운 서비스를 제공하려는 연구가 진행되고 있다. 기존의 웨어러블 디바이스들은 생체정보를 측정하여 사용자에게 서비스를 제공한다. 그러나 이러한 생체정보 수치를 측정하여 사용자의 상태를 판별하는 알고리즘과 기술이 미흡한 실정이다. 본 논문에서는 이러한 문제점을 해결하기 위해 가속도 센서와 심박 센서를 활용하여 생체정보를 측정하고 심장박동 수와 움직임에 대한 임계값을 설정한다. 이를 통해 사용자의 상태 파악 및 긴급상황에 대처할 수 있는 알고리즘을 제안한다.

• Perspectives in Nursing Science
• /
• 제12권1호
• /
• pp.50-59
• /
• 2015

Purpose: The purpose of this study was to investigate the influencing factors on the quality of life of elders. Methods: Data were collected from August 25, September 1, 2014, and participants were 300 elders who were using senior welfare centers. Descriptive statistics, t-test, one-way ANOVA, Pearson correlation coefficient, and stepwise multiple regression were used for data analysis. Results: Elders who were more painful, highly perceived health status, self-esteem and social support, and lower depression showed relatively higher quality of life. Also, there were strong correlations between quality of life and depression (r=-.737) /perceived health status (r=.709). Factors predicted quality of life of elders were perceived health status (${\beta}=.349$), depression (${\beta}=-.267$), social support (${\beta}=.172$), self-esteem (${\beta}=.170$), pain (${\beta}=-.130$), income (${\beta}=.113$), and level of education (${\beta}=.064$). These 7 factors explained 78.2% of the variance in quality of life of elders (F=154.49, p<.001). Conclusion: Therefore, in order to improve the quality of life of elders, a systematic approach is necessary through multilateral cooperation among comprehensive sectors.

• Child Health Nursing Research
• /
• 제17권4호
• /
• pp.256-263
• /
• 2011

The purpose of the study was to evaluate the physical and psychological health status of North Korean defector children and identify associated factors. The participants in the study were 103 children ranging in age from 7 to 14 years old. Physical health status was evaluated through height and weight measurements as well as clinical laboratory results. Psychological health status was assessed using structured survey interviews. Data were analyzed utilizing Pearson correlation coefficients, t-test, ANOVA, and descriptive statistics. On arrival in South Korea, 19% of the children did not meet the child growth standards of South Koreans for height and 15% for weight. However, twelve weeks after, these percentages had decreased significantly. It found that 38.5% of children presented mild posttraumatic reaction and 40.4% presented moderate reaction. Scores for externalizing and internalizing behavior problems were $0.38{\pm}0.30$ and $0.59{\pm}0.36$ respectively. Posttraumatic reaction was higher in girls (t=0.41, p=.03), and boys showed higher externalizing problems (t=2.04, p=.04). Externalizing problems were correlated with gender and internalizing problems were associated with posttraumatic reactions and externalizing problems. The findings indicate that North Korean defector children need timely developmental assessments and tailored intervention programs to meet child growth standards need to be developed.

• Annals of Clinical Neurophysiology
• /
• 제2권1호
• /
• pp.8-12
• /
• 2000

Purpose : The rapid development and wide popularity of Digital EEG(DEEG) is due to its convenience, accuracy and applicability for quantitative analysis. These advantages of DEEG make one hesitate to use analog EEG(AEEG). To assess the advantage of DEEG system utilizing AEEG(DAEEG) over conventional AEEG and the clinical applicability, a DAEEG system was developed and applied to animal model Methods : Sprague-Dawley rat as status epilepticus model were used for collecting the EEG data. After four epidural electrodes were inserted and connected to 8-channel analog EEG(Nihon-Kohden, Japan), continous. EEG monitoring via computer screen was done from two rats simultaneously. EEG signals through analog amplifier and filters were digitized at digital signal processor and stored in Windows-based pentium personal computer. Digital data were sampled at a rate of 200 Hz and 12 bit of resolution. Acquisition software was able to carry out 'real-time view, sensitivity control and event marking' during continuous EEG monitoring. Digital data were stored on hard disk and hacked-up on CD-ROM for off-line review. Review system consisted of off-line review, saving and printing out interesting segment and annotation function. Results: This DAEEG system could utilize most major functions of DEEG sufficiently while making a use of an AEEG. It was easy to monitor continuously compared to Conventional AEEG and to control sensitivity during ictal period. Marking the event such as a clinical seizure or drug injection was less favorable than AEEG due to slowed processing speed of digital processor and central processing unit. Reviewing EEG data was convenient, but paging speed was slow. Storage and management of data was handy and economical. Conclusion : Relatively simple digital EEG system utilizing AEEG can be set-up at n laboratory level. It may be possible to make an application for clinical purposes.

• 대한간호학회지
• /
• 제49권4호
• /
• pp.461-471
• /
• 2019

Purpose: The purpose of this study was to evaluate the effectiveness of a health promotion program utilizing action planning strategy for young adults. Methods: A non-equivalent control group pre-post-test design was used. One hundred three university students participated in the study. Participants in the experimental group (n=51) were provided the health promotion program utilizing action planning strategy for five weeks. The program consisted of weekly sessions that included action planning and group feedback. The control group (n=52) was provided with health information every week for 5 weeks. Program outcomes, including self-efficacy, physical activity health behaviors, total exercise time per week, daily cigarette consumption, frequency of alcohol drinking per month, nutritional health behaviors, and subjective health status, were assessed at baseline and at follow-up after 5 weeks. Results: The participants in the experimental group demonstrated significant increases in self-efficacy, physical activity health behaviors, weekly exercise time, and nutritional health behaviors and significant decreases in daily cigarette consumption than those in the control group. Conclusion: The health promotion program utilizing action planning strategy is a brief and effective intervention to promote health behaviors among young adults. Further investigation is warranted to assess the program's effectiveness among other age groups and populations at high risk for chronic illness.

• 한국노년학
• /
• 제30권4호
• /
• pp.1281-1292
• /
• 2010

본 연구의 목적은 노인의 자가 보고에 따른 각종 의료정보의 주관적인 이해 및 활용수준에 대해 조사하고 신체적, 정신적 건강상태와의 연관성을 확인하며, 노인의 연령대 및 교육수준에 따라 구체적으로 어떠한 의료 정보의 이해와 활용에 어려움이 있었는지를 파악하기 위함이다. 본 연구의 대상자는 총 103명으로 2007년 7월부터 8월까지 대구, 경북, 부산지역의 노인복지회관과 노인정에서 선정되었다. 연구결과 노인의 자가 보고에 따른 의료정보 이해수준의 전체 평균점수는 15-75점 기준에 약 50점이었고, 가장 이해하기 어려워 한 부분은 의료인으로부터 받은 자료, 환자 교육자료, 병원서식 자료였다. 노인의 의료정보 활용수준은 노인의 신체적, 정신적 건강상태와 연관성이 있었으나, 의료정보 이해수준은 신체적, 정신적 건강상태와 연관성이 없었다. 또한 후기노인들은 전기노인들보다 약물명 이해수준과 병원용지 기입에 대한 자신감이 더 낮았고, 병원자료 이해부족으로 인한 건강상태 파악, 복약 설명서 이해부족으로 인한 약물 복용, 병원 설명서 이해부족으로 인한 예약 시간 도착에 있어서 더 많은 어려움을 경험하였다. 이 밖에도 초등학교 이하의 교육수준을 가진 노인일수록 의료인으로부터 받은 자료, 환자 교육자료, 병원서식, 진료 예약표, 약물명, 안내표지판 등에 대한 이해수준이 낮았고, 병원용지 기입이나 복약설명에 따른 약 복용에 대한 자신감이 낮았으며, 병원용지 기입과 건강상태 파악에 문제를 경험한 적이 더 많았다. 본 연구 결과를 바탕으로 의료인들은 의료기관의 시설 및 서식, 교육자료 등의 개발에 있어서 노인의 연령과 교육수준을 고려하여 정보의 이해와 처리를 강화할 수 있는 방법을 활용하여야 할 것이다.

• 한국산학기술학회논문지
• /
• 제17권2호
• /
• pp.315-324
• /
• 2016

본 연구는 대학의 특허경영전문가 활용이 기술이전 성과에 미치는 영향을 조사함으로써 향후 대학이 기술전담조직의 전문성강화의 방향성을 제시하고자 하였다. 특허경영전문가 파견에 관한 세부적인 효과파악을 위하여 세부적으로 특허경영전문가 파견유무, 특허경영전문가 파견기간, 특허경영전문가 파견연도로 세분화하여 연구를 진행하였다. 분석을 위하여, 대학정보공시센터의 "대학알리미" 자료와 한국지식재산전략원의 "특허경영전문가파견사업" 자료를 활용하였으며, 총 110개 4년제 대학을 중심으로 2008년부터 2013년간의 데이터를 활용하였다. 분석결과 첫째, 대학의 특허경영전문가활용은 활용 대학이 미활용대학 대비 기술이전 및 기술이전수입이 높은 것으로 나타나 대학의 기술이전 활성화를 이루는데 있어 특허경영전문가 활용이 중요한 역할을 했다는 것을 알 수 있었다. 둘째, 대학의 특허경영전문가활용기간이 길수록 기술이전 및 기술이전수입이 높아지는 것으로 나타나 사업의 효과를 더욱 극대화하기 위하여 기간을 연장할 수 있는 방안마련이 필요하다는 방향성을 도출할 수 있었다. 셋째, 특허경영전문가 파견연도(해당연도)에는 기술이전 및 기술이전이 높아지지 않은 반면, 파견연도 전후로 기술이전성과가 나타나 특허경영전문가 파견이 즉각적인 효과라기 보다는 후속적인 효과로 해석할 수 있었다. 그렇기 때문에 파견사업의 효과를 단순히 짧은기간에 한정시키지 말고, 장기적인 관점에서 기술이전전담조직을 활성화시켜야 할 것이다.

• 한국간호교육학회지
• /
• 제19권4호
• /
• pp.558-570
• /
• 2013

Purpose: In these days, the concept of health literacy becomes important because it is essential to have a clear grasp of patients' basic ability to understand health-care information. Therefore, we intended to discover attributes, antecedents and consequences of health literacy through contextual analysis. Method: Following Rodgers' evolutionary concept analysis, we did a literary review. The databases KMBase, KoreaMed, Kstudy, NDSL, and RISS were searched for articles. Among published literature about health literacy, twenty articles which satisfied the inclusion criteria were chosen. Results: Health literacy consists of three attributes: information seeking, information understanding, and information utilizing. Furthermore antecedents are as follows: health status, health belief, socioeconomic status, and information quality. Finally, we were able to explain the consequences of health literacy by showing improvement of self-care and interaction, and a decrease of social costs. Conclusion: We expect this study to guide the direction of future studies, and as a concept analysis that examines the conceptual attributes in the context of health literacy. Based on the result of this study, the design of a standardized tool and the program of health literacy promotion education need to be developed.

• 한국환경복원기술학회지
• /
• 제2권3호
• /
• pp.74-82
• /
• 1999

This study is aimed to establish the development plannings for the sustainable tourism of Yongyoo Island and Mooeui Island, neighboring areas of Youngjong Island, for the conservation and environmentally friendly use of Korean coastal wetlands. The concepts of sustainable tourism is described. The current development status and its problems of Youngjong Island and its neighboring areas are analysed. The development plannings for sustainable tourism of Yongyoo Island and Mooeui Island are suggested as follows : (1) The small scale tourism development projects, which are able to represent region's own characteristics, instead of large scale ones, should be performed. (2) The participation of community people should be guaranteed at the beginning stage of the decision making processes for tourism development projects. Additionally, the profits of the development should be fairly distributed among community people. (3) The coastal wetlands should be conserved and their sewage disposal capacity should be protected by way of the minimization of reclamation. (4) The coastal wetlands should be developed into the tourist resorts utilizing migratory birds as tourism resources. In addition, the carrying capacity of the coastal wetlands, which is based on the current status of ecosystems and the Environmental Impact Assessment(EIA), should be calculated.