• Journal of the Korean Society for Marine Environment & Energy
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• v.19 no.3
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• pp.203-210
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• 2016

In this study, nine heavy metals were analyzed in seaweeds collected from market and laver culture farm of Korea and a food safety assessment were also carried out for these heavy metals. The level of heavy metal concentrations in seaweeds was in the following order: Fe>As>Zn>Cu>Cd>Pb>Cr>Ni>Hg. Except for zinc and cadmium, seven heavy metals were significantly higher in cultured laver than in processed laver. Significant correlation was observed Cr-Fe in cultured laver and Cu-Zn, Cd-Cu, Cd-Zn and Pb-Ni in processed laver and Cu-Cr, Cu-Zn, Cd-Cr and Ni-Fe in sea tangle and Zn-Fe, Cr-Fe, Cr-Zn, Cd-Ni, Cu-Cd and Cu-Pb in processed sea mustard. Considering differences in heavy metal concentration between processed laver and cultured laver and in correlation among heavy metals, removal efficiency of heavy metals may be attributed to seaweed treatment process. The average weekly intakes of Cu, Cd, Zn, Fe and Hg via seaweeds consumption were about 0.1~7.6% of PTWI (Provisional Tolerable Weekly Intakes). Therefore, it was found that heavy metals in the seaweeds were very safe for consumption.

• The Journal of the Korea Contents Association
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• v.9 no.12
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• pp.270-278
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• 2009

Most of previous studies on civil servants' stress factors and job satisfaction have been focused on low job satisfaction caused by stress from role relations and human relations. In case of fire officers, however, their stress is expected to be influenced by their unique job characteristics such as risk, urgency, stand-by, and shift. Thus, this study divided fire officers'stress factors into job-related factors (risk, urgency, stand-by, alternation) and role-related factors (role conflict, role ambiguity, role overload), and empirically analyzed how these factors affect their job satisfaction. According to the results of this study, fire officers' job characteristics and their roles in the organization had a significant effect on their job satisfaction. Particularly, among the job-related factors, urgency and stand-by had a positive effect on job satisfaction, and among role-related factors, role conflict and role overload had a negative effect on job satisfaction. In addition, fire officers' stress and job satisfaction were significantly different according to their job (fire fighting, rescue and first aid, fire administration, others), and according to their workplace (fire fighting headquarters, fire station, 119 safety center).

• Journal of the Korean Applied Science and Technology
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• v.38 no.4
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• pp.974-985
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• 2021

The purpose of this study was to determine the effects of black consumers' perception of behavior on Emotional exhaust and ago resiliency among hair service experts. The 318 questionnaires for hair and beauty experts in Seoul, Gyeonggi Province and Jeollanam-do were used as the final analysis data and were analyzed using the SPSS 26.0 statistics program. Analysis method to analyze frequency factor analysis, reliability analysis, Correlation analysis, Multiple regression analysis was performed. First, black consumers' perception of behavior showed a positive correlation with emotional exhaust, and black consumers' perception of behavior showed a negative correlation with ago resiliency. the emotional exhaust and ago resiliency showed a negative correlation with each other. Second, it was confirmed that excessive among the black consumer factors affects has an effect on emotional exhaust. Third, it was confirmed that excessive and Habitual among the black consumer factors affects on ago resiliency. Fourth, it was confirmed that emotional exhaust has an effect on ago resiliency.

• Journal of Hospice and Palliative Care
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• v.21 no.2
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• pp.65-74
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• 2018

Purpose: The aim of this study is to examine the relationships among hospice-palliative care (HPC) nurses' knowledge of delirium, self-efficacy and nursing performance. Methods: This study was participated by 174 nurses working in the HPC unit. The nurses were asked to fill out a questionnaire that was structured to measure their knowledge of delirium, a self-efficacy in clinical performance scale (SECPS) and nursing performance. Results: The mean score for knowledge was 32.83 out of 45, with correction rate of 73%. The mean score for self-efficacy was 7.08 out of 10. The mean score of nursing performance was 2.95 out of 4. Significant correlation was observed among the variables of knowledge (r=0.28, P<0.001), self-efficacy (r=0.51, P<0.001) and nursing performance. Conclusion: Nurses with high level of knowledge of delirium showed high level of self-efficacy, and consequently better HPC nursing performance. It is necessary to develop a training program on delirium considering nurses' needs of knowledge of the condition. The effectiveness of the training program should be also examined in future.

• Proceedings of the KGS Conference
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• 2003.11a
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• pp.54-58
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• 2003

작물은 각 지역의 기후 특성을 잘 반영하는 기후 경관 중의 하나이다. 작물의 분포는 농업기술의 발달정도, 작물의 수익성 등의 영향을 받지만 기후의 영향이 가장 크다. 그 지역의 기후 특성에 알맞은 작물을 심어야 생육이 활발하며 생산량도 증가한다. 반면에 기후 조건에 맞지 않은 작물을 재배할 경우 생육이 불량하며 수량성도 떨어진다. 그러므로 기후 환경은 지역마다 다양한 작물의 분포를 야기 시킨다. (중략)

• Journal of the KSME
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• v.25 no.2
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• pp.153-157
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• 1985

치차의 마찰손실은 일반적으로 낮으나, 치면의 온도상승을 초래하여 마멸을 증대시키거나 치면의 강도를 저하시킨다. 이것은 결과적으로 치차의 강도(부하특성)에 직접적인 관계를 갖고 있기 때문에 마찰손실을 가능한 한 낮게 유지하여야 한다. 치차의 맞물림은 치면의 미끄름속도 미 끄름율, 곡율반경 및 하중이 맞물림중에 순간적으로 변하므로 해석이 간단하지 않다.

• The Journal of the Korea Contents Association
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• v.17 no.3
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• pp.1-14
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• 2017

This study aims to understand the influences that emotional and behavioral problems, relationships with parents, peer groups and teachers have on school refusal tendency and their routes targeting for 546 students of the 1st and 2nd grades in the boys' and girls' middle schools in G city and to conduct a path analysis by using Pearson's product-moment correlation and LISREL program. The results are the followings: First, significant correlation is shown in the all relationships, excluding the external problems out of emotional and behavioral problems, social support factor out of teachers-related variables, negative support factor out of parents-related variables. Second, emotional and behavioral problems have highly direct influence on school refusal tendency and relationship with parents without any meditator effect and has indirect influence on relationships with peer groups and teachers without having statistically significant and direct influence. Also, relationship with peer groups has statistically significant and negative effect on school refusal tendency without having statistically significant and direct influence, teachers relationship has statistically significant and direct effect on school refusal tendency and relationship with parents has indirect influence on school refusal tendency through relationship with peer groups and teachers relationship without having statistically significant and direct effect.

• Journal of Digital Convergence
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• v.10 no.4
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• pp.173-179
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• 2012

In this study, gieopjung S corporations around the country the customer's perceived image of S corporations and relationships affect the relationship between commitment and see it through the marketing strategy was to become the foundation of the relationship of the findings customers commitment to S corporations used to think showed significantly affect impartiality. Growth of corporate commitment to the relationship between S corporations also affect to some extent because of the image rather than just winning and how much that technology can be seen to affect the Saints. In addition, does not affect the reliability of several factors, innovation, enterprise-wide chief executive officer, and so on image based on careful consideration of a more customer-oriented company with a reliable image of the future must be concerned with is improving.

• Journal of the Korean Society for information Management
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• v.23 no.4 s.62
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• pp.295-315
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• 2006

Sharing knowledge is an important factor in the discourses on the knowledge management on the campus. This article analyzed the impact of organizational context on faculty's perceptions of knowledge-sharing capabilities in the university. As a result, perceptions of knowledge-sharing capabilities and performance-based reward systems were found to significantly affect faculty knowledge-sharing capabilities in the university studied. Also, results from multivariate analysis showed that the faculty's perception of knowledge-sharing more significantly affected knowledge-sharing than reward system.

• The Korean Journal of Financial Studies
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• v.10 no.1
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• pp.231-248
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• 2004

본 연구는 주식간 상관관계 속성을 검증하고자 하는 연구의 일환으로, 한국주식시장에서 1980년 1월부터 2003년 5월까지 기간동안에 수익률 측정기간단위 변화에 따라 주식수익률간 상관관계에 어떤 영향이 관찰되는지를 검증하고자 하였다. 즉, 주식수익률간 상관관계가 시간의 함수(시간종속성)인지를 관찰하고자 하였다. 또한, 수익률의 측정기간단위에 따라 영향을 받는 주식수익률간 상관관계가 주식수익률에 영향을 미치는 요인의 어떤 변화에 기인하는 것인지를 시장모형을 이용하여 개별주식수익률 변동성의 구성요소로 분해 및 분석함으로써 그 원인을 찾고자 하였다. 검증결과에 의하면, 수익률의 측정기간단위가 증가함에 따라 주식수익률간 상관관계는 증가하는 경향을 나타냄에 따라 시간의 함수임을 부정할 수 없었고, 또한 측정기간단위가 단기에서 장기로 변화함에 따라 개별주식수익률의 변동성 구성요소에서 개별기업요인에 기인하는 부분은 감소되고 시장요인에 기인하는 부분은 증가하는 것을 알 수 있었다. 즉, 수익률 측정기간단위는 주식수익률간 상관관계에 유의적인 영향을 미치고, 이러한 영향은 주식수익률에 영향을 미치는 요인 중, 시장요인의 변화를 야기하는 것에서 원인을 찾을 수 있었다.