• The Journal of the Korea Contents Association
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• v.12 no.1
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• pp.275-298
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• 2012

Holding conventions and exhibitions are deemed as a highly valued-added services. The conventions and exhibitions industry (CEI) contributes to the development of the region in which the venues are located by creating jobs, boosting the local economics, attracting dollars and increasing tax incomes. At the same time, the international awareness of the region rises after holding an international exhibition or convention. This study investigated the effects of outsourcing services quality that employed by corporations organizing conventions and exhibitions on business performance and customer satisfaction of organizing corporations. It was found that many convention organizing corporations relied on outsourcing services for the most of the process. Given that the staff members of outsourcing companies serve as the major source of services for events, the quality of their services has much effects on the business results of hiring corporations. In this study, major factors influencing the service quality and the importance of the service quality were addressed. And the ideas for effective method for controlling the outsourcing sources were also suggested for hiring corporations and outsourcing companies.

• Journal of Korean Clinical Health Science
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• v.5 no.4
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• pp.981-990
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• 2017

Purpose: The purpose of the study was to investigate the relationship between job searching efficacy and employment stress of the allied health students. Methods: A self-reported questionnaire was completed by 269 allied health students in Gyeongnam from September to October 30, 2015. The questionnaire consisted of general characteristics of the subjects(5 items), employment stress(22 items), job searching efficacy(27 items). Data were analyzed by SPSS 20. program. Results: In case of the man, good economic level, dissatisfied with major have higher job searching efficacy in allied health students. Department of physical therapy students had higher employment stress. The employment stress has an effect on higher self-esteem, higher employment in information technology, in case of the man, lower career adopted a capability. Conclusions: It is necessary to reduce employment stress of the allied health students. That should be provide support of economical, innovation curriculum development opportunity of self-development on improve the self esteem and employment in information technology, interview skill, writing resume from freshman to broaden understanding of the majors, for the employment stress coping skill.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.12
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• pp.400-413
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• 2017

It is necessary for inmates released from prison to recover their career capital in order to function normally in society. Failure to adapt to the society may not only make them unhappy but could also aggravate social safety nets. Therefore, it is critical to examine the recovery of career capital. For this study, we conducted in-depth interviews of 10 rehabilitation recipients who were supported by Korea Rehabilitation Agency. For qualitative analysis, several career topics were analyzed, such as obstacles in recovering career capital, efforts in overcoming these obstacles, what is helpful for them to overcome the obstacles and what is required for them to adapt to the career life and others. Analysis results found that the rehabilitation beneficiaries suffered loses to their career capital due to their incarceration, suffered from the loss of pride and became despondent in the process of recovery of career capital due to the negative social perception toward their social self, fear of social stigma and devaluation of themselves. In addition, the fear of possible negative evaluation was a critical factor in making their social activities more challenging. Conversely, it was found that social support in the recovery process of career capital has a positive effect. In particular, emotional support from spouses, employers, family members and friends are the most positive factors. Concerning efforts at adapting to careers, it was found that an active, leading and positive attitude toward the career were critical, showing that positive evaluation and recognition in family and social relations and the experience of success in the career were positive elements in enhancing a sense of pride. In summary, it was found that in the recovery process of career capital, dysfunctional beliefs had a negative effect, while social support had a positive effect, on the recovery of career capital.

• Economic and Environmental Geology
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• v.36 no.5
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• pp.365-374
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• 2003

Various deleterious chemicals can be introduced to existing concrete structures from various external sources. The deterioration of concrete by seawater attack is involved in complex processes due to various elements contained in seawater. In the present study, attention was paid to the formation of secondary minerals and characteristics of mineralogical and micro-structural changes involved in concrete deterioration caused by the influence of major seawater composition. The characteristics of deterioration occurred in existing concrete structures was carefully observed and samples were collected at many locations of coastal areas in Busan-Kyungnam. The petrographic, XRD, SEM/EDAX analyses were conducted to determine chemical, mineralogical and micro-structural changes in the aggregate and cement paste of samples. The experimental concrete deteriorations were performed using various chloride solutions (NaCl, CaCl, $MgCl_2$ and $Na_2SO_4$ solution. The experimental results were compared with the observation results in order to determine the effect of major elements in seawater on the deterioration. The alkalies in seawater appear to accelerate alkali-silica reaction (ASR). The gel formed by ASR is alkali-calcium-silica gel which known to cause severe expansion and cracking in concrete. Carbonation causes the formation of abundant less-cementitious calcite and weaken the cement paste. Progressive carbonation significantly affects on the composition and stability of some secondary minerals. Abundant gypsum generally occurs in concretes subjected to significant carbonation, but thaumasite ({$Ca_6/[Si(OH)_6]_2{\cdot}24H_2O$}${\cdot}[(SO_4)_2]{\cdot}[(CO_3))2]$) occurs as ettringite-thaumasite solid solution in concretes subjected to less significant carbonation. Experimentally, ettringite can be transformed to trichloroaluminate or decomposed by chloride ingress under controlled pH conditions. Mg ions in seawater cause cement paste deterioration by forming non-cementitious brucite and magnesium silicate hydrate (MSH).

• Journal of Life Science
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• v.25 no.7
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• pp.765-772
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• 2015

The aim of this study was to determine the effect of decursin (D) and decursinol angelate (DA) against bisphenol A (BPA) toxicity in a rat two-generation study. Adult rats were divided into the following three groups: (1) control, (2) BPA, and (3) BPA+D/DA. The D and DA treatment of F0 parents increased the terminal body weight and relative adult organ weights (testes, kidneys, spleen, and liver) when compared with the BPA group. A significant decrease in sperm count was found in the BPA+D/DA (7.69%) and BPA (64.70%, p<0.01) groups, when compared with the sperm count in the control group. No offspring were obtained in the F1 generation of the BPA (50 mg/kg/day) group, but the addition of D/DA in the BPA+D/DA group significantly restored fertility (55.78%) and gestation indices (98.87%) in the F1 generation. No significant differences were found in the fertility index between the control (75.02%) and the BPA+D/DA (78.11%) groups in the two-generation study, when compared with the one-generation study. The viability ratio during lactation in the D/DA group was also similar to that of the control group. These data indicate that D/DA (50 mg/kg/day) administered over two generations causes significant positive changes in reproductive or developmental parameters.

• Journal of the Korean earth science society
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• v.24 no.4
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• pp.315-324
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• 2003

The characteristics of particles were evaluated through the measurement data of PM$_{2.5}$, PM$_{10}$ and TSP instruments located in air quality monitoring stations installed and operated by Seoul Metropolitan city. The data of particulate mass on the filter was collected bv a high volume air sampler during the sand storm period. The number of days of sand storm in Seoul showed a different pattern from 1990 to November 2002, We can see a trend of increased occurrence and duration of sand storms. The ratio of PM$_{10}$ to TSP was shown as 52.9% and 59.4% during the sand storm period in 2000 and 2001. respectively. It was indicated that the particles larger than 10${\mu}$m increased by approximately 10% in sand storm periods compared to no sand storm period. While PM$_{10}$ size fraction reached 71.4% in 2002, the contribution of sand storm to total particulate concentration was estimated to be 11.9% for PM$_{2.5}$, 23.1% for PM$_{10}$, 19% for TSP in 2002, respectively and sand storms highly correlated with annual total particulate concentration.

• Journal of the Korean Data and Information Science Society
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• v.27 no.4
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• pp.935-946
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• 2016

In this paper, we analyzed wage determinants of the vocational high school graduates utilizing both individual-level and work region-level variables. We formulate the models in the way wage determination has multi-level structure in the sense that individual wage is influenced by individual-level variables (level-1) and work region-level (level-2) variables. To incorporate dependency between individual wages into the model, we utilize hierarchical linear model (HLM). The major results are as follows. First, it is shown that the HLM model is better than the OLS regression models which do not take level-1 and level-2 variables simultaneously into account. Second, random effects on sex, maester dummy and engineering dummy variables are statistically significant. Third, the fixed effects on business hours and mean wage of regular job for level-2 variables are statistically significant effect individual-level wages. Finally, parental education level, parental income, number of licenses and high school grade are statistically significant for higher individual-level wages.

• Korean Journal of Social Welfare
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• v.53
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• pp.105-128
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• 2003

This study examined the factors affecting family caregiver's preference for utilization of community care services among those who are caring for 65+ elderly parents, and aimed to show how social eldercare services would be settled in Korea. Help-seeking behavior model developed by Anderson and Newman(1973) was used to analyze the factors affecting their preference for utilizing the community care service among 283 family caregivers. Frequency, Chi-square, and Multinominal logistic analysis on SAS 6.12 was used. According to the results, about 90% of the family caregivers have preference for community and institute care services. In community care service, about a half comprise the preference with charge while the other without charge. However, about 90% of those for institute care service show their willingness to pay for the service. Also, a majority of caregivers like to rely on social eldercare service, rather than family as exclusively responsible, against long-term care for their elderly parents. Multinominal analysis demonstrates that use versus nonuse of community care services is primarily affected by predisposing factors(including age, carer-caree closeness, and familism) and need factors (including economic or psychological burden of eldercare, and additional role for family care). Enabling factors, such as family income level, economic support from other family members and siblings, and supportive care-helpers, are mainly associated with the preferences of free versus charge in service use. These findings provide some implications and suggestions for the development of social eldercare services in our aging society.

• Journal of the Mineralogical Society of Korea
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• v.23 no.2
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• pp.151-159
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• 2010

The effect of calcite and gypsum on the hydration of Portland cement was investigated using GEM-PSI, a geochemical model. Addition of calcite and gypsum up to 5 wt% of total cement clinker into Portland cement was found to influence the hydrate assemblage of the hydrated cement in different ways. The results of geochemical modelling showed that the fraction of calcium monocarbonate increased by the hydration of cement with the increase of calcite addition. The results of modelling also indicated that gypsum increased the fraction of ettringite in the assemblage of hydrated cement as the amount of gypsum added increases. This study showed that porosity generated by the hydration of cement had a significant relation with the amount of calcite and gypsum added. The porosity of hydrated cement was lower when calcite added up to 3 wt% of cement clinker compared to the hydrated cement with the same amount of gypsum addition. However, when calcite added more than 3% of cement clinker, the porosity of hydrated cement were higher than that of hydrated cement with the same amount of gypsum addition.

• Journal of the Korea Convergence Society
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• v.11 no.5
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• pp.261-273
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• 2020

The purpose of this study is to examine the trajectories of multi-dimensional poverty in the process of transitioning from middle age to old age, and to identify the factors that influence them. Using the Korea Welfare Panel Data(2006 ~ 2018), we examined the trajectory of changes in multi-dimensional poverty for 13 years by prospective elderly and middle aged group aged 55 or older in 2006 through the potential growth model. Multidimensional poverty is divided into seven dimensions in four areas: economy (income, employment), environment (residential), health, social culture (leisure, family relations, and social relations). The results showed that the level of multi-dimensional poverty decreased with time, and the overall poverty level was higher than that of the pre-old and the average. As a result of analyzing the condition model with the independent variable, the variables affecting poverty change were found in the order of spouse free and educational level for the elderly and gender and education level for the elderly. In other words, multi-dimensional poverty is gradually improving, but the rate of change and the variables that affect each age group are different.