• 한국직업건강간호학회지
• /
• 제15권1호
• /
• pp.58-71
• /
• 2006

Purpose: This study was performed to identify workers' Job stress status and to analyse the influencing factors. Method: Data were collected from 456 workers with Korean Occupational Stress Questionnaire Short Form(KOSQ SF) and analysed using descriptive statistics, t-test, ANOVA. Results: Total job stress status of men was slightly lower than Korean workers' standard. In case of women, the score of total job stress was lower than Korean workers' standard. The most significant influencing factors to stressors were insufficient sleeping time and self cognitive bad health condition. Among seven domains of job stressors, job demand was affected by 8 characteristics. Conclusion: This study indicated that workers' job stress level were various by their characteristics except workplace size. The development of stress management programs by types of industry is required. On the base of the model program, planning of customized program for every company or employee is required. High job demand, insufficient job control, insufficient sleeping time, bad health condition are the key factors of workers' job stress in this study. The change of workers' health behavior with supportive environment is essential to stress management program. More researches for adding physical environment domain to KOSQ SF are expected.

• 디지털융복합연구
• /
• 제15권9호
• /
• pp.519-532
• /
• 2017

본 연구의 목적은 감정노동자가 경험하는 직무스트레스의 내용이 무엇인지에 대해서 탐색하고자 하였다. 이를 위하여 D시 소재 컨택센터협회에 소속되어 있는 100여개의 콜센터 중에서 콜센터 상담사 11명을 일대일로 면담하여 이들이 경험하는 직무와 관련된 스트레스의 내용이 무엇인지 Giorgi의 현상학적 분석 절차에 따라 질적 분석을 하였다. 분석결과 직무특성과 개인특성으로 구분하여 총 8개의 범주와 24개의 하위범주를 도출하였다. 직무특성에는 "업무수행의 한계", "업무의 부담", "경직된 업무방식", "통제가 안 되는 고객", "통제된 요구"로 구분하였다. 그리고 개인특성에는 "심리적 불안정", "성격적 취약성", "빈약한 대처자원"으로 구분되었다. 직무특성과 개인특성의 범주는 각각 한계 수준과 통제수준으로 구분되었으며 직무스트레스와 개인특성 간에 빈약한 대처자원이 매개하는 것으로 나타났다. 이 결과를 토대로 기존의 조직차원에서의 대응뿐만 아니라 개인의 불안정한 심리상태 파악 후 심리적 스트레스를 완화시키는 융복합적 중재에 대해 논의를 하였다.

• 한국전기전자재료학회:학술대회논문집
• /
• 한국전기전자재료학회 2004년도 추계학술대회 논문집 Vol.17
• /
• pp.408-411
• /
• 2004

The electrical stability against surge stress of ZPCCY-based varistors were investigated at different sintering times. Sintering time decreased the varistor voltage and nonlinear exponent from 279.6 to 179.1 and from 52.5 to 24.9, respectively. On the contrary, the leakage current and dielectric dissipation factor increased from 1.2 to 9.8 ${\mu}A$ and from 0.0461 to 0.0651 with increase of sintering time. For all varistors, the variation rates of V-I characteristic parameters against surge stress were affected in order of varistor voltage$\rightarrow$nonlnear exponent$\rightarrow$leakage current. On the whole, the electrical stability against surge stress increased with increasing sintering time. Conclusively, it is assumed that the varistor sintered for 2 h exhibited comparatively good characteristics, in view of overall characteristics.

• 한국구조물진단유지관리공학회 논문집
• /
• 제5권3호
• /
• pp.233-244
• /
• 2001

Stress-strain behaviour of soil varies based on stress path and stress history. There has been few study on the characteristics of yielding curve which has anisotropic compression stress history in decomposed granite soil. During this study, various stress path tests in previous anisotropic compression stress history are performed on compacted decomposed granite soil sampled at Iksan, Chonbuk. Yielding points are determined from various stress-strain curves (${\eta}-{\varepsilon}$, ${\eta}$-v, and ${\eta}$-k, ${\eta}$-W curves). Stress-strain curve is certified which shows yielding point very clearly. The shape and characteristics of anisotropic compression yielding curves are examined. The main results are summarized as follows : 1) p' constant and compressive direction in stress paths, which has experienced previous anisotropic compression stress history, shows relatively dear yielding points. 2) Yielding curves defined from ${\eta}$-k and ${\eta}$-W curve show almost perfect ellipse. 3) Directions of plastic strain incremental vector($dv^p/d{\varepsilon}^p$) are not perpendicular to yielding curve.

• 한국지반공학회:학술대회논문집
• /
• 한국지반공학회 2006년도 춘계 학술발표회 논문집
• /
• pp.760-767
• /
• 2006

Underestimation of rock joint shear strength comes from an inadequate consideration of roughness mobilization behavior, which is changed by asperity size as well applied normal load. In this study, we performed rock joint shear tests, and studied the roughness mobilization characteristics related with the scale of normal stress and asperities. Test specimens with artificial triangular asperities were manufactured. The specimens consisted of 3 types, and each type represented unevenness, waviness and total roughness(superposition of unevenness and waviness). The experimental results show that the roughness mobilization characteristics are varied by the scale of normal stress and asperities. Furthermore, the investigation shows that the rate of geometrical component and mechanical component in the total roughness is also varied by the scale of normal stress and asperities. These results suggest that we should consider the roughness mobilization characteristics for the roughness quantification and the shear strength modelling.

• 한국안전학회지
• /
• 제16권4호
• /
• pp.7-13
• /
• 2001

Wire electrical discharge machining experiments in conducted to investigate characteristics of acoustic emission (AE) and electrical discharge energy due to current peak (I$_{p}$), pulse on time($\tau$/on/). The AE signals are obtained with a sensor attached to workpiece side. Machining states are identified with scanning electron microscopy and residual stress analyzer. It is demonstrated that the residual stress provide reliable informations about the machining states. Moreover, machining states can be detected successfully using both the residual stress and AE count rate.e.

• 근관절건강학회지
• /
• 제6권1호
• /
• pp.85-99
• /
• 1999

Chronic disease such as rheumatoid arthritis is believed to induce a significant psychosocial stressors. The concept of illness intrusiveness-illness induced life style disruptions-was hypothesized to affect psychosocial status. And demographic, socioeconomic, disease and social characteristics were hypotehsized to affect illness intrusiveness. Hierarchial multiple regression analyses were used. As a result, among the demographic factors gender was identified as contributor to directly increase the psychosocial stress and education level was identified to affect the psychosocial stress through illness intrusiveness. Among socioeconomic factors, the burden about the cost of medical treatment was found to indirectly affect the psychosocial stress through the illness intrusiveness. Also income and job were found to affect directly the psychosocial status. Among the disease characteristics, only the pain level was identified to increase the psychosocial stress through the illness intrusiveness. Among the social characteristics, perceived social support is identified to increase the psychosocial stress through the illness intrusiveness. Based upon these results, some suggestions were made for minimizing illness intrusiveness in rheumatoid arthritis and future research.

• Journal of Welding and Joining
• /
• 제12권4호
• /
• pp.151-161
• /
• 1994

FCAW has wide application in ship fabrication, maintenance and field erection. It has many advantages over SMAW.SAW and GMAW process. In many applications, the FCAW provides highquality weld metal. This method can reduce weld defects especially porosity and spatter. But the fatigue characteristics of those deposited metal have been rarely investigated. The purpose of this study is to investigate the cyclic stress-strain behavior and fatigue tests by the constant strain control were carried out on the rounded smooth specimen with deposited metal using the metal type flux cored wire. As the results of this study for the deposited metal welded by the metal type flux cored wire, the hardening or softening characteristics under cyclic load were investigated and cyclic stress-strain curve, strain-fatigue life curve, stress-strain function and fatigue life relation which are useful to estimate the fatigue life under the stress concentration condition were obtained.

• 가정간호학회지
• /
• 제19권2호
• /
• pp.195-203
• /
• 2012

Purpose: This study is conducted to investigate the stress level, stress source and stress coping of nursing students in college. Methods: This study was a cross sectional survey and the data was collected from 341 nursing students by means of self-reported questionnaires from April 2 to May 31, 2012. Collected data were analyzed on SPSS win 18.0. Results: The nursing students experienced moderate levels of stress. The source of stress for students came from 'one's own self'. The most common stress coping used by students was 'make a wish'. There were significant differences in the source of stress and the stress coping according to the nursing students' year of school and other general characteristics, such as motivation of entrance and satisfaction in school life. Conclusion: These results suggest that it is important to develop stress management program and strategies based on nursing students' individual characteristics and sources of stress.

• 간호행정학회지
• /
• 제5권1호
• /
• pp.169-180
• /
• 1999

The purpose of this study was to identify the degree of stress and job satisfaction and the relationship of stress and job satisfaction of oriental hospital nurses. The subjects were 255 nurses of 9 oriental hospital in Taegu and Pusan cities and data were collected from 20 March to 10 May 1998. The instruments used for this study were a survey of genernal characteristics(7 items). stress(6 items) and job satisfaction(20 items). Analysis of data was done by use of mean, percentage, t-test, ANOVA and pearson correlation with SPSS program. The results of this study are as follows : 1) The average item score for stress was 3.08. Religion, duration of nurse expectancy and work motivation among sociodemographic characteristics were significantly different with the degree of stress. 2) The average item score for job satisfaction was 2.84. Education, religion, marital state, carrier history, duration of nurse expectancy and work motivation among sociodemographic characteristics were significantly different with the degree of job satisfaction. 3) There were significant negative correlation among the variables : working volume and group conflict factors · role implementation fators${\cdot}$personal socialization fators/nursing skill and role implementation fatal's· personal socialization fators/rolesharing with peers and role implementation fators/relationship with co-workers and group conflict factors${\cdot}$role implementation fators${\cdot}$personal socialization fators/relationship with patients and role implementation fators/relationship with supervisors and role implementation fators. And there was a significant positive correlation between role-sharing with peers and decision-making fators.