• 한국응급구조학회지
• /
• 제22권2호
• /
• pp.35-49
• /
• 2018

Purpose: This study aimed to develop a resilience measurement scale and verify its validity and reliability. Methods: This was a methodological study. The preliminary items of the scale were derived from literature reviews and in-depth interviews. The data were collected from October 30, 2017 to January 20, 2018, and paramedics working in hospitals or fire departments were selected using convenience sampling. A self-reported questionnaire was completed by 213 paramedics in Korea. Results: Through content validity, item analysis and exploratory factor analysis, a total of 6 factors and 26 items were extracted, and the total variance was 67.12%. Factor 1 was "self-efficacy" (11 items), factor 2 was "internal control" (5 items), factor 3 was "empowerment" (2 items), factor 4 was "interpersonal capability", (3 items), factor 5 was "social support" (2 items), and factor 6 was "adaptation and coping" (3 items). Conclusion: This is the first scale developed in Korea to measure the resilience of paramedics. In future, this scale of this study will contribute to developing a resilience improvement program based on understanding the resilience level of paramedics.

• 동의신경정신과학회지
• /
• 제12궈1호
• /
• pp.67-79
• /
• 2001

This investigation is to make clear the feature of Zhangzihe's medical care. This investigation had used individual or mixture theory of which is Oriental medicine or Western medicine. I have come to some conclusion from the analysis of medical cases in ${\ulcorner}Rumenshiqin{\Ircorner}$. The conclusion is as followed: 1. Zhangzihe had recognized that the cause of disease's main factor is the internal fever from mental unrest. His such a thought is applied for all process of medical care. 2. He had emphasis on the environment of patients, social mood, individual grade and economic ability, personality and etc. 3. He had thought that the doctor should lead the patient in relationship between doctor and patient. He asked the patient for blind obelience to doctor without the patient's voluntary participation. 4. He had emphasis on the adaptation to medical circumstance.

• 한국자동차공학회논문집
• /
• 제17권1호
• /
• pp.130-136
• /
• 2009

A lumped parameter model of Li-ion battery in hybrid electric vehicle(HEV) is constructed and system parameters are identified by using recursive least square estimation for different C-rates, SOCs and temperatures. The system characteristics of pole and zero in frequency domain are analyzed with the parameters obtained from different conditions. The parameterized model of Li-ion battery indicates highly dependant of temperatures. The system pole and internal resistance changes 6.6 and 18 times at $-20^{\circ}C$, comparing with those at $25^{\circ}C$, respectively. These results will be utilized on constructing model-based state observer or an on-line identification and an adaptation of the model parameters in battery management systems for hybrid electric vehicle applications.

• 아동학회지
• /
• 제27권4호
• /
• pp.219-232
• /
• 2006

The purpose of this research is to develop and validate an instrument that can be used to measure critical aspects of a parent's attitude and behavior that influence child development and adaptation. This instrument is named Parenting Style Inventory and self-reporting assessment of parent for preschoolers. We reported findings from 578 preschooler's care-givers. Five factors were extracted from 55 items developed for preschooler version and finally 29 items were selected. Subscales were empathy, respect, parental authority, coerciveness, perfectionism. Internal consistency of these subscales were .77, .86, .70, .74, .68 relatively. Empathy, respect and authoritative scales were regarded as the basic dimensions of parent's behavior. For clinical validation, we divided the preschooler care-giver sample into 8 groups according to scores of the basic dimensions and compared the 8 groups with parenting stress and parenting self-efficacy scores. The results indicated that three basic factors would have different effects on parental experiences and satisfaction. We suggested the clinical implication and limitation of this instrument.

• 전자공학회논문지SC
• /
• 제48권4호
• /
• pp.17-24
• /
• 2011

본 논문에서는 알 수 없는 주파수를 가지는 주기적인 외란이 존재하는 광디스크 드라이브에 대하여 주파수 적응 알고리즘과 출력 제어기를 추가하여 외란을 제거하는 제어기법을 제안한다. 여기서 IMP(internal model principal)에 기반을 두는 주파수 적응 알고리즘은 주기적인 외란의 주파수를 알아내는 역할을 한다. 전체 시스템의 안정도 및 외란제거 성능은 특이섭동이론(singular perturbation theory)으로 증명된다. 본 논문의 기여는 주파수 범위에 따른 설계의 제약이 없다는 점과 모델 불확실성이 존재할 때도 외란을 제거할 수 있다는 점을 들 수 있다.

• 한국항공우주학회지
• /
• 제33권3호
• /
• pp.39-46
• /
• 2005

본 논문에서는 광범위한 함수 근사성질을 갖고 있는 신경회로망을 이용하여, 시스템의 입출력 조화성분의 선형관계를 표현하기 위해 추정된 전달행렬의 적용범위를 확장할 수 있는 적응 고차조화제어(Higher Harmonic Control, HHC) 기법을 제안하고 있다. 신경회로망의 학습신호는 추정된 전달행렬을 기반으로 계산된 최적제어 이득 값 행렬을 이용하여 구성된다. 내부 안정성을 보장하기 위하여 신경회로망의 가중치 학습방법은 Lyapunov 직접 방법을 이용하여 유도하였다. 6개의 입력과 2개의 출력을 갖는 비선형 시스템에 대한 시뮬레이션 결과를 통해 적응 고차조화제어 기법이 불확실한 전달행렬에 적용 가능함을 보였다.

• 보건의료산업학회지
• /
• 제14권2호
• /
• pp.105-115
• /
• 2020

Objectives: The purpose of this study was to determine the mediating effect of life attitude on the relationship between appearance satisfaction and self-efficacy of college students. Methods: The data from 223 college students (K-do and -city) highly interested in body and appearance, and were analyzed by three-step mediation analysis and Sobel test. Results: The mediating effect of life attitude was significant on the relationship between appearance satisfaction and self-efficacy. Namely, there was a mediating effect meaning the higher the appearance satisfaction, the more positive the attitude of life and the more self-efficacy. It was simultaneously found that the appearance satisfaction had a direct influence on self-efficacy. Conclusions: In summary, appearance satisfaction and self-efficacy act as internal factors that motivate individual self-development and the smooth adaptation of university life by changing own behavior. Accordingly, an education program should be devised to help college students form their own regular and correct lifestyles, which will also contribute to the improvement of self-efficacy of college student.

• 자연, 터널 그리고 지하공간
• /
• 제3권2호
• /
• pp.32-44
• /
• 2001

Most of the major aspects of the high speed rail tunnels in Korea, including such items as the tunnel geometry, excavation methods, primary support, final lining, drainage and waterproofing, are similar to the practices followed in other countries. The tunnels in Korea provide the largest net internal area $(107\;m^2)$ as compared to the other counties addressed in this paper. The effective adaptation and modification of international practices and designs, combined with the integration of domestic practices, has resulted in the successful construction of these large tunnels. The experience gained from the completed work to date on the high speed line in Korea, combined with international technology input, will help to ensure future tunnels are constructed in an efficient manner with adequate design measures implemented for the long-term operational life of the tunnels. As has occurred in these other countries, further improvements and modifications to the Korea high-speed railway tunnels will occur as experience is gained and new technology develops.

• Nuclear Engineering and Technology
• /
• 제39권4호
• /
• pp.273-286
• /
• 2007

This paper presents the research activities performed to date for the development of a supercritical pressure water-cooled reactor (SCWR) in Korea. The research areas include a conceptual design of an SCWR with an internal flow recirculation, a reactor core conceptual design, a heat transfer test with supercritical $CO_2$, an adaptation of an existing safety analysis code to the supercritical pressure condition, and an evaluation of candidate materials through a corrosion study. Methods to reduce the cladding temperature are introduced from two different perspectives, namely, thermal-hydraulics and core neutronics. Briefly described are the results of an experiment on the heat transfer at a supercritical pressure, an experiment that is essential for the analysis of the subchannels of fuel assemblies and the analysis of a system safety. An existing system code has been adapted to SCWR conditions, and the process of a first-hand validation is presented. Finally, the corrosion test results of the candidate materials for an SCWR are introduced.

• 대한간호학회지
• /
• 제51권5호
• /
• pp.525-536
• /
• 2021

Purpose: The aim of this study was to assess the Turkish adaptation of the COVID Stress Scale (CSS) on the basis of determining the stress caused by the coronavirus disease (COVID-19) pandemic, and to test its validity and reliability. Methods: The English CSS was translated into Turkish using forward and backward translation. Data were collected online from 360 participants. Construct validity was evaluated using confirmatory factor analysis, exploratory factor analysis, and content validity. Pearson product-moment correlation, Cronbach's alpha reliability coefficient, and test-retest methods were used to evaluate reliability. Results: The Turkish version of the CSS has 36 items consistent with the original scale and has five factors: COVID danger and contamination, socioeconomic consequences of COVID, COVID xenophobia, traumatic stress due to COVID, and compulsive checking for COVID. The construct validity of the Turkish version of the CSS was verified by the adjusted goodness of fit index > .85, and comparative fit index > .95. The content validity index of each item was 91%. The corrected item-total correlations of the scale ranged from .51 to .89. Internal consistency was reliable, with a Cronbach's α of .93. Conclusion: The Turkish version of the CSS is valid and reliable. It can be used as a measurement tool for the assessment of COVID-related stress.