• 대한정형도수물리치료학회지
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• 제25권2호
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• pp.11-20
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• 2019

Background: The purpose of this study was to investigate the immediate effect of thoracic self mobilization on balance and gait of acute stroke patients. Methods: Patients (n=10) with acute stroke applied to thoracic self mobilization. There are two thoracic self mobilization of both extension and rotation. Each thoracic self mobilization was performed ten times per direction in a total of three sets and the total time required for two thoracic self mobilization was twenty minutes. The break time between sets was one minute. Balance ability was measured using the timed up and go test and the five times sit to stand test for patients. The 10 meter walk test and the functional gait assessment were used for measurement of gait ability for patients. Results: Significant improvements were observed on balance ability (p<.05) and gait ability (p<.05). Conclusion: These results show that thoracic self mobilization is immediate effective on balance and gait ability. Thus, thoracic self mobilization will help recovery of balance and gait ability in acute stroke patients.

• 한국해양공학회지
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• 제35권3호
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• pp.183-190
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• 2021

Tomographic particle image velocimetry (PIV) is a widely used method that measures a three-dimensional (3D) flow field by reconstructing camera images into voxel images. In 3D measurements, the setting and calibration of the camera's mapping function significantly impact the obtained results. In this study, a camera self-calibration technique is applied to tomographic PIV to reduce the occurrence of errors arising from such functions. The measured 3D particles are superimposed on the image to create a disparity map. Camera self-calibration is performed by reflecting the error of the disparity map to the center value of the particles. Vortex ring synthetic images are generated and the developed algorithm is applied. The optimal result is obtained by applying self-calibration once when the center error is less than 1 pixel and by applying self-calibration 2-3 times when it was more than 1 pixel; the maximum recovery ratio is 96%. Further self-correlation did not improve the results. The algorithm is evaluated by performing an actual rotational flow experiment, and the optimal result was obtained when self-calibration was applied once, as shown in the virtual image result. Therefore, the developed algorithm is expected to be utilized for the performance improvement of 3D flow measurements.

• 보건행정학회지
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• 제32권2호
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• pp.180-189
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• 2022

Background: Social support contributes directly and indirectly to maintaining physical, mental, and social well-being. The aim of the study was to identify the impact of social support on self-rated health among Korean industrial accident workers. Methods: This study used data from the panel study of workers' compensation insurance (PSWCI). The final subjects were 2,759 workers who responded to a 2018 to 2020 PSWCI. Social support was defined as social contact with friends, neighbors, family, and social participation activities like religious activity, social activity, and club activity. Multivariate logistic regression analysis was performed to investigate causal relationships between social support and self-rated health using a generalized estimating equation model. Results: Proportion of workers' good self-rated health steadily increased (2018: n=1,447, 63.2%; 2019: n=1,542, 66.2%; 2020: n=1,653, 67.3%). Higher levels of social contacts with friend (worse: reference; same: β=0.442) and higher levels of social activity (yes: reference; no: β=-0.173) were especially associated with good self-rated health. Conclusion: This study confirmed social support positively influenced self-rated health among the self-rated health of industrial injured workers. The results of this study suggested that recovery policies that the government served should include programs enhancing social support for improving health among industrial injured workers.

• Smart Structures and Systems
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• 제6권9호
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• pp.1041-1056
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• 2010

This paper investigates the possibility of a strategy for an automatic full recover of a structural component undergoing loading-unloading (fatigue) cycles: full recover means here that no replacement is required at the end of the mission. The goal is to obtain a material capable of self healing earlier before the damage becomes irreversible. Attention is focused on metallic materials, and in particular on shape memory alloys, for which the recovering policy just relies on thermal treatments. The results of several fatigue tests are first reported to acquire a deep understanding of the physical process. Then, for cycles of constant amplitude, the self-healing objective is achieved by mounting, on the structural component of interest, a suitable microcontroller. Its input, from suitable sensors, covers the current stress and strain in the alloy. The microcontroller elaborates from the input the value of a decisional parameter and activates the thermal process when a threshold is overcome.

• 대한기계학회논문집
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• 제10권3호
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• pp.292-297
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• 1986

본 연구에서는 2024 Al 합금에 대하여 260-380.deg. C의 온도 범위 및 2~5kgf/ m $m^{2}$의 부과응력 범위에서 실시한 고온 정상 크리이프 변형 중의 내부응력 .sigma. $_{i}$,의탄성 변형 .epsilon.$_{A}$ 및 회복율 r의 측정 실험을 통하여 이들 상호간의 관계 를 살펴 보고자 한다.다.다.

• 정보보호학회논문지
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• 제11권3호
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• pp.53-62
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• 2001

본 논문에서는 키 복구 기능을 가지는 키 공유 프로토콜의 안전성을 검토한다. 1999년 ICISC\`99에서 P. Paillier와 M. Yung이 제안한 자기 위탁 공개키 시스템 [2] 중에서 Diffie-Hellman형 자기 위탁 키 공유 시스템에 대한 메시지 은닉 공격을 제안하고, 그 대책을 제시한다. 또한, 2001년 PKC 2001에서, 사용자와 서비스 제공자간의 모의에 의한 공격 가 능성을 배제하고 제안한 키 복구 기능을 가지는 키 공유 프로토콜 띠에 대해서, 사용자 모의에 의한 공격 가능성을 배제하지 않을 경우에는 서비스 제공자의 키 복구 기관을 무력화하는 공격 방법이 존재함을 보이고, 사용자 모의에 의한 공격에 대해서도 안전한 키 복구 방식 설계의 필요성을 지적한다.

• 여성건강간호학회지
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• 제5권3호
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• pp.410-419
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• 1999

This study sought to figure out women's functional status after childbirth under the Sanhujori. Functioal status was defined as the women's readiness to assume infant care responsibilities and resume her usual activities including household, social and community, self-care and occupational activity. A convenience sample of 211 women who are in the postpartal period of the range from 1 week to 3 months above and residing in Seoul. Korea was studied from January, 1997 to December, 1998 for two years. Mean age of respondents was 29.9 years and mean of the present postpartal period was 7.5 weeks. The present postpartal period was of 5-8 weeks 26.5%, 3-4weeks 26.1%, 9-12 week 23.7% and below 2 weeks 7.1%, 32.7% of women had a job and the mean period of return to job was 2.76 weeks. During Sanhujori the non professional care giver was family members from women's maiden home 73.5% and only 2% of husband. The period women needed for the recovery from now was 5.39 weeks and it means that women need 12.9weeks for recovery after childbirth. For the present subjective health status after childbirth, bad was 20.2%, good 18.3 and average 61.5% and for the recovery status, completely recovered 29.5%, slightly 61.8% and rarely 8.7%. The mean of functional status at the 7.5weeks was baby care activity 3.65, household 2.57, self-care 2.46, occupational 2.44 and social 1.53 in rank. Except baby care the functional status was generally low or very low. The related factors to the functional status were the period and subjective evaluation of Sanhujori women experienced, the present period of postpartum, and subjective feeling of recovery. This result strongly reflects the effects of Sanhujori culture and Sanhujori per se on women's postpartal life including functional status and reconfirmed the relationship between health status and the experience of Sanhujori after delivery as the previous findings from various study showed. It provides a challenge to the professional care givers to research further on the effects of Sanhujori on the health status, health recovery after abortion or delivery from the various aspects through the cross-sectional and longitudinal research for the refinement of the reality of Sanhujori not only as cultural phenomenon but as an inseparable factor influencing in women's postpartal healthy adaptation and for the appropriateness of intervention and quality of care for desirable health outcome.

• 한국콘텐츠학회논문지
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• 제19권5호
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• pp.306-315
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• 2019

본 연구는 정신장애인의 회복과 관련한 영향요인과 가족탄력성의 조절효과를 실증적으로 분석하고자 하였다. 이에 생 심리 사회관점과 생태체계관점을 토대로, 선행연구를 통해 개인적 사회적 요인의 긍정적 부정적 요소를 모두 고려한 연구모형을 구축하고, 이들 요인들의 인과적 효과와 함께 가족탄력성의 조절효과에 대해 통계적 유의미성을 확인하였다. 조사대상은 정신장애인 관련기관 이용자 112명으로, 자료수집방법은 구조화된 설문지를 통한 면접조사로 이루어졌으며, 분석방법은 다중회귀분석을 적용하였다. 분석결과, 증상을 제외한 자아존중감과 사회적 낙인, 사회적 지지 모두 통계적 유의미성이 확인되었고 가족탄력성의 조절효과는 정(+)적으로 자아존중감과 사회적 지지에만 상승효과가 있는 것으로 확인되었다. 이에 효과적 회복접근을 위해 내 외적 지지체계 구축 및 가족탄력성의 체계화를 실천전략으로, 확인된 자아존중감과 사회적 지지의 긍정적 요소와 관련된 프로그램 강화를 통해 정신장애인의 순적한 회복지원을 위한 전략들에 대해 제언하였다.

• 한국융합학회논문지
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• 제7권2호
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• pp.85-91
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• 2016

본 연구는 국내 화재피해자의 긴급복구를 위한 민 관 융합형 지원시스템 방안에 대한 것으로, 화재피해자의 긴급복구활동에 대한 현황과 문제점 분석을 통하여 정부와 민간 협력기반의 통합적 지원시스템 구축방안을 제시하였다. 전체적으로 국가는 시스템 운영의 관리 감독기관의 기능을 담당하고 민간에서 실질적 긴급복구 전담기관의 기능을 담당하는 시스템을 의미한다. 결과적으로, 화재피해 긴급복구 지원을 위한 법제도 정비, 지원사업의 민간위탁 시스템 구축, 소요재원의 안정적 조달 및 민 관 긴급복구의 융합기능 강화를 위한 지원시스템 방안을 도출하였다. 특히, 긴급복구 소요재원의 안정적 조달 방안은 긴급복구를 위한 기금의 신설 및 민간 수탁법인의 자체 재원 조성의 세부방안을 논의하였다. 본 연구결과는 향후 국가 소방안전복지와 사회안전망의 강화에 기여할 것이다.

• 지역사회간호학회지
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• 제29권2호
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• pp.143-154
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• 2018

Purpose: The purpose of this study is to identify the effects of job demand and recovery experience from job stress on job embeddedness among workers in the service industry. Methods: The participants were 223 workers from the service industry in P and Y Cities with the help of a structured self-report questionnaire, administered between July 10 and August 20, 2017. The data were analyzed using descriptive statistics, t-test, ANOVA, $Scheff{\acute{e}}$ test, Pearson correlation coefficients and stepwise multiple regression. Results: There were significant differences in job embeddedness in terms of satisfaction with salary, continuous service, perceived stress level and the perceived health status of the subjects. There were significant positive correlations between role clarification in job demands (r=.55), recovery experience from job stress (r=.27) and job embeddedness. From the multiple regression analysis, the most significant factors affecting job embeddedness were found to be role clarification in job demands (${\beta}=.47$), recovery experience from job stress (${\beta}=.23$), and perceived stress level (${\beta}=.18$). These variables explain 34.0 % of the total variance in job embeddedness. Conclusion: In order to increase job embeddedness among workers in the service industry, it is necessary to prepare measures to increase recovery experience from job stress and to decrease role clarificationin job demand, and perceived stress level.