• The Journal of Korean Academic Society of Nursing Education
• /
• v.23 no.2
• /
• pp.214-223
• /
• 2017

Purpose: This study was conducted to investigate the factors influencing the competence in intensive and critical care nursing of senior nursing students. Methods: A descriptive survey was used to examine the factors that influence competence in intensive and critical care nursing. The data were collected using self-administered questionnaires; 237 senior nursing students were asked about general characteristics, critical thinking, communication competence, self-esteem, self-resilience, and self-leadership. Results: Multiple regression analysis indicated that self-leadership, self-esteem, and confidence in intensive care unit practice predicted the competence in intensive and critical care nursing (37.8% of explanatory power). Critical thinking, communication competence, and self-resilience were not shown to be significant predictors of, but were positively correlated with, the competence in intensive and critical care nursing. Conclusion: Based on the results, it is suggested that self-leadership, self-esteem, and confidence in intensive care unit practice should be considered in nursing education in order to improve nursing students' level of competence in intensive and critical care nursing.

• Proceedings of the Korean Geotechical Society Conference
• /
• 2010.09a
• /
• pp.687-697
• /
• 2010

This study was designed to carry out studies on critical seepage velocity and critical hydraulic gradient using a piping test targeting SM and ML which are widely distributed ahead of and behind the depth of E.L(-)10m in Saemangeum area in order to examine stability of embankment built on the ground vulnerable to piping. The effects of relative densities on critical hydraulic gradient and critical velocity were also compared and analyzed using empirical formula and theoretical formula, and relative densities were set up as respectively 9%, 25%, 50%, and 75% for this experiment. As a result, for critical hydraulic gradient, most of specimens detected piping at lower values than the empirical formula of Terzaghi(1922). It is, therefore, considered that the empirical formula devised by Kalin(1977) or Hayashi(1978) is more reasonable to be conservative. It was also found that critical velocity decreased as relative density increased, and critical velocity predicted was mostly lower than the theoretical formula.

• Journal of Mechanical Science and Technology
• /
• v.17 no.1
• /
• pp.57-63
• /
• 2003

An eigenvalue design sensitivity formulation of a general nonsymmetric-matrix rotor-bearing system is devised. using the DDM (direct differential method). Then, investigations on the design sensitivities of critical speeds are carried out for an APU turbogenerator with a spline shaft connection. Results show that the dependence of the rate of change of the critical speed on the stiffness changes of bearing models of spline shaft connection points is negligible, and thereby their modeling uncertainty does not present any problem. And the passing critical speeds up to the 4th critical speed are not sensitive to the design stiffness coefficients of four main bearings. Further, the dependence of the rate of change of the critical speed on the shaft-element length changes shows quantitatively that the spline shaft has some limited influence on the 4th critical speed but no influence on the 1st to 3rd critical speeds. With no adverse effect from the spline shaft, the APU system achieves a critical speed separation margin of more than 40% at a rated speed of 60,000 rpm.

• Journal of Korean Critical Care Nursing
• /
• v.3 no.2
• /
• pp.49-59
• /
• 2010

Purpose: The purpose of this study was to investigate in-service education needs in order to develop clinical competence of critical care nurses', and to identify contents which have to include in-service education according to nurses' characteristics. Methods: Data was collected using Critical Care Nurse Job Analysis Tool that was modified by professional team. Collected data was analyzed using the SPSS program. Results: Total 148 critical care nurses, who had worked at adult intensive care unit of one tertiary hospital in Seoul, filled out questionnaire. The results showed the participants highly needed education about cardiological nursing practices such as ECMO, pacemaker, cardiac tamponade. And there were significant correlations among in-service educational needs and ICU careers, preceptors experience, and charge nurse experience. Conclusion: It will be necessary for better nursing to develop in-service education is based on critical care nurse's need and their characteristics. Especially, it is important to develop and provide in-service education programs, which consider ICU nurse's differences for their career ladder and nursing preceptors.

• The Journal of Korean Academic Society of Nursing Education
• /
• v.22 no.2
• /
• pp.115-124
• /
• 2016

Purpose: The purpose of this study was to examine the degree of intensive and critical care nursing competence in senior nursing students. Methods: The research method for this study comprised a descriptive survey study with a convenience sample of 113 senior nursing students from one university. The instrument entitled ICCN-CS-1, which measures intensive and critical care nursing competence, was translated by the authors following WHO guidelines for translation process. The data were collected using ICCN-CS-1. Results: The mean score of intensive and critical care nursing was above the intermediate level. The competence indices of knowledge, skill and attitude/value were also above the intermediate level, which suggests that their competence is good. For two intensive and critical care nursing domains, the nursing students' mean score of clinical competence is higher than that of professional competence. The competence of intensive and critical care is also influenced by nursing students' satisfaction in their major and clinical practice as well as their confidence in clinical practice. Conclusion: The senior nursing students' competence of intensive and critical care nursing is above the intermediate level. A consideration of the influencing factors of satisfaction of nursing major/ICU practice and confidence of ICU practice is needed in intensive and critical care nursing education.

• International Journal of Advanced Culture Technology
• /
• v.6 no.1
• /
• pp.23-31
• /
• 2018

The purpose of this study was to identify mediating effect of major satisfaction in the effect of critical thinking disposition on disaster recognition. For this study, 237 students of nursing students from universities in Jeollanam do participated in the study. The data collection was collected on Dec 1 to 7, 2017. The descriptive statistics was used to analyze general characteristics of participants, the differences in disaster recognition according to general characteristics were analyzed by t-test or ANOVA. Regression analysis was conducted to confirm the effect of critical thinking disposition on disaster recognition and Baron, R.M. And Kenny, D.A.'s mediation effect statistic analysis was used to confirm the mediating effect of major satisfaction in critical thinking disposition on disaster recognition. As a result, the critical thinking disposition affects the disaster recognition, and it was judged that the major satisfaction was mediating role. intellectual fairness sub-factor showed perfect mediating effect and confidence and general truth sub-factor showed partial mediating effect. Based on the above findings, it can be seen that not only critical thinking but also satisfaction with the major should be considered in order to increase the recognition of the sudden disaster. In this case, research for linking critical thinking disposition and major satisfaction is likely to be meaningful. Through the results of this study, we suggest the program development of a linkage between critical thinking disposition and major satisfaction to increase the recognition of disaster.

• Proceedings of the KSME Conference
• /
• 2004.04a
• /
• pp.2094-2099
• /
• 2004

An experimental study on heat transfer characteristics near the critical pressure has been performed with an internally-heated vertical annular channel cooled by R-134a fluid. Two series of tests have been completed: (a) steady-state critical heat flux (CHF) and (b) heat transfer tests for pressure reduction transients through the critical pressure. In the present experimental range, the steady-state CHF decreases with the increase of the system pressure For a fixed inlet mass flux and subcooling, the CHF falls sharply at about 3.8 MPa and shows a trend toward converging to zero as the pressure approaches the critical point of 4.059 MPa. The CHF phenomenon near the critical pressure does not lead to an abrupt temperature rise of the heated wall because the CHF occurred at remarkably low power levels. In the pressure reduction transient experiments, as soon as the pressure passed through the critical pressure, the wall temperatures rise rapidly up to a very high value due to the occurrence of the departure from nucleate boiling. The wall temperature reaches a maximum at the saturation point of the outlet temperature, then tends to decrease gradually.

• Journal of Korean Academy of Nursing Administration
• /
• v.14 no.2
• /
• pp.159-166
• /
• 2008

Purpose: The purpose of this study was to identify the degree of critical thinking disposition of nursing students and the factors influencing critical thinking disposition. Method: The subjects were 406 nursing students attending at one university who have been taught by the integrated nursing curriculum. Data was collected by a self-administered questionnaire from Nov. 11, 2007 to Nov. 30, 2007. The survey tool developed by Yoon(2004) was used. Data was analyzed by t-test, one way ANOVA and Scheffe test using SPSS Win 12.0. Result: The mean score of critical thinking disposition was 3.57. The sub scales of critical thinking disposition were statistically significant in regard to grade, age and character of subjects. Overall mean score of critical thinking disposition and its sub scales were statistically significant according to the degree of satisfactory of majoring nursing, reason of choosing nursing as a major and satisfaction on integrated nursing curriculum. Conclusion: Critical thinking ability is very important in various nursing situations. Integrated nursing curriculum was developed to improve critical thinking ability of nursing students. It is recommended that evaluation on the goal attainment of the integrated nursing curriculum needs to be monitored continuously.

• Journal of Korean Academy of Nursing Administration
• /
• v.14 no.2
• /
• pp.144-149
• /
• 2008

Purpose: The aim of this study was to testify correlations between critical thinking disposition and decision making styles. Methods: The subjects of this study were 193 freshman nursing students in the 1 nursing school located in Incheon area. The data were collected by self-reporting questionnaires. The data were analyzed using descriptive statistics and Pearson correlation coefficient analysis. Results: The score of critical thinking disposition was revealed 3.96 points. The highest was inquisitiveness, the lowest was systematicity. The most frequent decision making style was revealed a rational decision making. The next was dependant decision making, intuitional decision making as follows. The critical thinking disposition and rational decision making had a statistically significant positive correlation. However the critical thinking disposition and dependant decision making had a statistically significant negative correlation. Conclusion: With these findings, we are found that the more increasing critical thinking disposition, the more developing rational decision making. It will suggested that the program for increasing nursing student's critical thinking disposition focused on systematicity, analyticity and truth seeking in critical thinking sub categories.

• Nuclear Engineering and Technology
• /
• v.36 no.5
• /
• pp.403-414
• /
• 2004

An experimental study of heat transfer characteristics near the critical pressure has been performed with an internally-heated vertical annular channel cooled by R-134a fluid. Two series of tests have been completed: (a) steady-state critical heat flux (CHF) tests, and (b) heat transfer tests for pressure reduction transients through the critical pressure. In the present experimental range, the steady-state CHF decreases with increase of the system pressure for fixed inlet mass flux and subcooling. The CHF falls sharply at about 3.8 MPa and shows a trend towards converging to zero as the pressure approaches the critical point of 4.059 MPa. The CHF phenomenon near the critical pressure does not lead to an abrupt temperature rise of the heated wall, because the CHF occurs at remarkably low power levels. In the pressure reduction transients, as soon as the pressure passes below the critical pressure from the supercritical pressure, the wall temperatures rise rapidly up to very high values due to the departure from nucleate boiling. The wall temperature reaches a maximum at the saturation point of the outlet temperature, and then tends to decrease gradually.