• 한국노년학
• /
• v.37 no.3
• /
• pp.527-547
• /
• 2017

The purpose of this study is to investigate how depression, death anxiety, and social support can exert influence on the psychological well-being of elderly living alone through a parameter of resilience. A survey was conducted involving 988 elderly over the age of 65 living alone in the Daejeon metropolitan area and Chungcheongnam-do and the data were analyzed using structure equation model. The results were as follows. First, in the measurement of variables according to demographic characteristics, depression showed significant differences depending on gender, level of education, health, and financial condition, while death anxiety differed depending on gender, and level of education. Social support was significantly different by gender, age, level of education, region, health, and financial condition. The level of resilience was significantly different by gender, age, level of education, health, and financial condition. Psychological well-being varied according to gender, level of education, health, and financial condition. Second, the effects of depression, death anxiety and social support on psychological well-being were examined. It was found that depression had a negative influence and social support had a positive impact while death anxiety showed no influence. Third, with regard to the effects of depression, death anxiety, social support on resilience, depression was found having negative influence, whereas social support having positive influence. Forth, psychological well-being was positively affected by resilience. Also, through the mediated pathway of resilience, their psychological well-being seemed to totally improve when the negative factors were reduced and the positive ones promoted. This study may have some significance in reference to examine the factors affecting the psychological well-being of elderly living alone and to develop social welfare service programs and policies in the field.

• Proceedings of the KAIS Fall Conference
• /
• 2009.05a
• /
• pp.208-211
• /
• 2009

발성법은 좋은 목소리로 크고, 아름답게 노래를 부르기 위한 훈련 방법이다. 그러나 결국 이러한 발성의 표현은 무대 위에서 이루어져야 한다. 성악이나 판소리의 경우는 주로 정적인 상태에서의 감상을 위한 음악인데 반해 대중음악은 동적인 상태에서 관객과 함께 즐겨야 하는 경우가 대부분이다. 따라서 대중가요 가수들에게는 관객과 함께 호흡하며 노래하되 절대 흥분하지 않는 상태에서 올바른 발성을 해야 하는 냉정함이 요구된다. 발성은 노래를 부르기 위한 사전과정이며 가수는 무대에서 노래를 해야 한다. 따라서 좋은 노래를 부를 수 있도록 기초 과정을 거쳐 만들어진 발성을 올바르게 노래에 표현하는 방법을 연구해보도록 하겠다.

• Bulletin of the Society of Naval Architects of Korea
• /
• v.31 no.3
• /
• pp.48-51
• /
• 1994

일반적으로 모니터링 장비는 주로 플랜트의 운전 상태를 감시하고 제어하는 목적으로 쓰이고 있 는데 계측하는 각종 변수는 변화속도가 빠르지 않은 정적 데이터인 경우가 대부분이라고 할 수 있다. 그러나 기계상태나 구조안전 감시장치 등에 쓰이는 모니터링 장비는 진동 혹은 동적 데이 터를 계측하고 주파수 분석까지를 해야 하기 때문에 데이터의 취득속도가 현저히 빨라야하고 이 에 따른 여러 가지 신호처리 기법을 적용해야 한다. 본고에서는 선박에 쓰이고 있는 기계상태와 구조안전 감시를 위한 모니터링 장비의 동향에 대하여 알아보았다.

• Proceedings of the KIEE Conference
• /
• 2009.07a
• /
• pp.698_699
• /
• 2009

본 논문은 정적 편심과 회전자 도체 봉 파손에 대해서 각각 특성 해석을 한 후, 두 고장이 복합된 상태를 특성 해석하였다. 해석 대상 전동기는 coupled magnetic circuits 방법으로 모델링 하고, 시뮬레이션하였다. 특성 해석에 필요한 중요 파라미터인 인덕턴스는 winding function 이론으로 계산하였다. 시뮬레이션 결과 중에서 고정자 전류를 전류 신호 분석 기술로 특성 해석을 하였다. 특성 해석 결과에서 고장 상태가 변하면 특정 주파수의 크기가 변하는 것을 알 수 있었다. 복합 고장에서는 정적 편심은 아래쪽 측 대역 성분의 크기를 증가시키고, 회전자 도체 봉 파손은 기본 특이 주파수 주변에 기생 성분을 만드는 것을 알 수 있었다.

• Journal of the Korean Society for Railway
• /
• v.2 no.3
• /
• pp.9-17
• /
• 1999

This paper presents a new algorithm to determine the pre-loads that sustain the static equilibrium state in a given position. The algorithm which uses a partial velocity matrix leads to an unconstrained optimization problem to compute the pre-loads of the suspensions. To demonstrate the validity of the proposed algorithm, the static analysis results that employ the pre-loads of three examples are presented using a reliable commercial program. Results of the analysis confirm the validity of the proposed algorithm.

• Journal of the Korean Society for Aeronautical & Space Sciences
• /
• v.30 no.2
• /
• pp.115-121
• /
• 2002

This report summarized the static test of the rudder system for the KTX-1 basic trainer. The test loads are applied up to the limit and ultimate loads in a stepping sequence. Test loads and test results matt the strength and stiffness requirements of the rudder control system.. Using #004 full scale structure test airframe.

• Journal of Energy Engineering
• /
• v.12 no.1
• /
• pp.11-16
• /
• 2003

A numerical study was performed on the transient fuel temperatures of a military aircraft stationed under non-operating static condition. Numerical calculation was peformed by an explicit method using modified Dufort-Frankel scheme. It was assumed that the non-operating aircraft is subjected to repeated daily cycles of air temperature with the solar radiation and wind speed corresponding to the 1 % hot day ambient condition. And, the aircraft was assumed to be in turbulent flow. The convective heat transfer coefficient for turbulent flow on the flat plate suggested by Eckert was employed to calculate heat transfer between the aircraft surface and the ambience. The energy conservation equation on fuel was used as governing equation for this analysis. As a result of this analysis, the wing tank temperature showed the highest temperature and the largest rate of temperature changes among fuel tanks. The results of this analysis could be used as initial foe] temperatures for analysis of the transient fuel temperatures in various flight missions. Also, this analysis method could be used to analysis and design of an aircraft thermal energy management system.

• KSCE Journal of Civil and Environmental Engineering Research
• /
• v.26 no.6A
• /
• pp.935-941
• /
• 2006

The hysteretic behavior of steel structure under cyclic and dynami loading such as earthquake is different to that under static loading. Because structural steels on dynamic deformation is different to static deformation with respect with mechanical characteristics and stress-strain relationship. Therefore, to accurately predict the hysteretic behavior of steel structures such as circular steel columns under cyclic and dynamic loading, the difference of loading carrying capacity and deformation according to loading rate, assumed static and dynamic deformation state, must be investigated. In this study, numerical analyses of circular steel column using SM490 for change of loading rate and diameter-thickness ratio(D/t) were carried out by using three-dimensional elastic-plastic finite element analysis and dynamic cyclic plasticity model of SM490 developed by the authors. Characteristics of hysteretic behavior of circular steel column using SM490, load carrying capacity and energy dissipation ratio, were clarified by analysis results.

• The Journal of the Korea Contents Association
• /
• v.16 no.4
• /
• pp.250-261
• /
• 2016

This study was conducted to verify the mediation model of private self-consciousness on game addiction and aggression. Data from 439 boys were included in the analysis. The results are as follows. First, correlation analyses revealed that game addiction was positively correlated with aggression and private self-consciousness. Private self-consciousness was also positively correlated with aggression. Considering two factors of private self-consciousness, game addiction showed a significant positive correlation only with self-reflectiveness factor. Although two factors of private self-consciousness showed positive correlations with game addiction, regression analyses revealed that self-reflectiveness was the significant predictor of aggression. Second, the structural equation analyses showed that private self-consciousness, especially self-reflectiveness was found to partially mediate the influence of game addiction on aggression. Finally, limitations of this study and suggestions for further study were discussed.

• Journal of Biomedical Engineering Research
• /
• v.19 no.4
• /
• pp.417-422
• /
• 1998

The study was explored socket pressure distributions on a trans-femoral amputee with a suction socket in static and dynamic situations. Even when the amputee stood in the anatomically neutral position, significant pressure concentrations were observed in the lateral, medial, and posterior planes of the socket. During free level walking, a significant shifting pattern of pressure concentration areas was observed. High socket pressure was observed in the lateral, medial-anterior and posterior walls during mid-stance or push-off period. Socket pressure measurement will be one of the good tool to determine the optimal socket-limb interface.