• Journal of the Korea Convergence Society
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• v.11 no.8
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• pp.229-236
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• 2020

This study was conducted to identify the influence of the convergent lifestyles of the elderly consisting of physical exercise, smoking, drinking and social participation and the types of social participation on the risk of cognitive decline by using the 6th Korean Longitudinal Study of Ageing(KLoSA). Total 4,298 people aged 65 or older were included. Results show that all of lifestyle factors are significantly effected to prevent cognitive decline, social participation was derived as the most important explanatory variable to lower the risk of cognitive decline. In addition, participating in the religious groups, ascriptive groups, and expressive groups lowered the risk of cognitive decline. Therefore, active support at the community and policy for improving the convergent lifestyle of the elderly are needed.

• The Korean Journal of Emergency Medical Services
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• v.10 no.1
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• pp.51-60
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• 2006

Background: The toxicity of paraquat has been known to be caused by oxygen free radicals which leads to the lipid peroxidation and multiple organ failure. High dose vitamin C has been known to be a effective antioxidant activities against the paraquat intoxication. This study was designed to evaluate the effect of regular injection of high dose vitamin C on liver damage in paraquat poisoned rat model. Method: Fifty five rats of Sprague-Dawley strain were divided into three groups: control group, only intraperitoneally injected saline; paraquat group, single dose intraperitoneally injected paraquat(24.5%, 40 mg/kg) and every 8 hours injected saline; paraquat and vitamin C group, single dose intraperitoneally injected paraquat(24.5%, 40 mg/kg) and every 8 hours injected vitamin C(72 mg/kg). Rats were sacrificed on the 12 hours, 1st day, 2nd day, 4th day, 7th day after injection and liver tissue was obtained. H&E(Hematoxylin & Eosin) stain and Masson's trichrome stain for collagen fiber detection were undertaken. The results were observed using the microscope. Results: 1. There were no differences between control and experimental group at the 12hours after regular injection of high dose vitamin C. 2. There were significantly decreased liver damage in experimental group in the 1st day after regular injection of high dose vitamin C. 3. There were significantly increased recovery of liver damage with time in experimental group after regular injection of high dose vitamin C. Conclusion: These results suggest that regular injection of high dose vitamin C is effective in decreasing liver damage in paraquat intoxication.

• Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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• v.6 no.1
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• pp.35-44
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• 2008

Long-term degradation of coment barrier by diffusion was studied with reactive transport modeling. The result of modeling showed that cement barrier was altered about 30cm thickness after 50,000 years. The pH decreased from 13.0 to 11.9 because of depletion of alkali ions, and dissolution/precipitation of portlandite and CSH (Calcium Silicate Hydrate). In addition, porosity increased about 0.3 because of dissolution of portlandite and $CSH2.0(Ca_2SiO_3(OH)_2:0.17H_2O)$. The solubility of uranium also increased with the increase of pe value The results of this study indicate that long-term degradation of comet can enhance the transport of nuclide by changing pH, pe, porosity in barrier.

• Cartoon and Animation Studies
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• s.11
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• pp.11-28
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• 2007

The article concerns the public policy for the development of the arts educator in the field of the comic and animation education. The comic and animation education programs are focused on the promotion of the creativity and communication skills of the student in terms of the arts education. The article seeks to examine the case on the support program for the comic and animation educators, which has been managed by Korea Arts & Culture Education Service(KACES) since 2005. The forty two educators were surveyed. As a result, the support program of the KACES has an effect on the educator's recognition of the comic and animation education in the positive way. The most of the educators suggest that the support program should try to develop the comic and animation educator job as a special work with the full time job. In this repect, the article recommend the policy alternatives such as the promotion of the education program R & D, the knowledge and information system, training system and the establishment of the governance system.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.7
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• pp.175-183
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• 2017

In this study, the LINC project is finished and a new LINC+ has begun. For the settlement of mutual cooperation in universities and corporations, the main agenda of LINC+ project, this research attempts to find factors that are important to industries rather than the measurement of performance closely related to universities. From the companies' perspective, it is not easy to measure how much they are benefiting from mutual cooperation, although there are quantitative performance determinants such as sales, employment and export growth. Therefore, while estimating the satisfaction of industrial-educational cooperation and simultaneously estimating the satisfaction's effect to the development of companies, we try to estimate the contribution of satisfaction towards company development through subjective indicators. Through these efforts, we will raise the credibility of government policies through the cultivation of talented individuals who are customized to the industry through the cultivation of "Industry-Leading Universities" that we intend to pursue through the implementation of LINC+ business, and small and medium enterprises. Innovative support and the cooperation of industry-universities will increase job creation and ensure consistent industry. We will contribute to the mutual development of universities and industries.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2006.11a
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• pp.153-153
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• 2006

ZnO 박막은 II-VI족 화합물 반도체로서 상온에서 3.37eV 의 넓은 밴드갭을 가지고 있을 뿐만 아니라 GaN(28meV) 보다 상온에서 큰 엑시톤 결합 에너지(60meV)와 열 안정성을 가지고 있다. 특히 ZnO를 base로 한 2차원의 화합물 (MgZnO, CdZnO 그리고 MgO) 반도체 물질은 UV LED, 생 화학 센서와 투명전극 등으로 응용이 가능하다. ZnO/MgZnO 양자우울 구조의 양자제한 효과로 인한 엑시톤 결합에너지와 전기적 광학적 특성 향상으로 광전자 소 자 제작이 가능하다. 그렇지만, Zn-Mg 상평형도에서 ZnO 내에 Mg 고용도가 상온에서 열역학적으로 4at% 이하 이고, 또한 ZnO와 MgO는 각각 우르짜이트 구조와 면심입방 구조를 가지기 때문에 Mg 함량용 높이는데 어려움이 있다. 이러한 문제점을 해결하기 위해 열처리를 함으로써 MgZnO 박막 내에 Mg 함량의 증가와 결정성 향상으로 고품질의 광전자 소자 제작을 가능하게 했다. 본 실험에서는 RF 마그네트론 스퍼터링 장비로 MgZnO 박막 성장 후 Si 기판위에 성장된 박막의 결정성 향상과 MgZnO 내의 Mg 함량 변화를 관찰하기 위해 성장된 박막에 대한 열처리 효과를 연구 하였다.

• Journal of Labour Economics
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• v.30 no.2
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• pp.33-60
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• 2007

This study analyzes the trend of the gender wage gap and its sources in the Korean labor market for the years 1985-2004. Following Oaxaca and Ransom (1994), the gender wage gap is composed of the productivity-related gap and non-productivity-related gap (unobserved productivity gap and discrimination). Empirical findings indicate that both the productivity-related gap and non-productivity-related gap have dwindled, while the decline of the former far excelled that of the latter. The non-productivity-related gender wage gap is much larger for married women than for single women, possibly implying a lower unobserved productivity of married women because of their childcare responsibilities. The non-productivity-related gap is also very substantial in the male-dominated occupations as compared to the female=dominated occupations, supporting the existence of network externalities in employment.

• Korean Journal of Materials Research
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• v.9 no.4
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• pp.378-385
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• 1999

To evaluate the effect of Sn on the corrosion behavior of Zr alloys for nuclear fuel claddings, the corrosion tests on the binary Zr-xSn and the ternary Zr-0.4Nb-xSn alloys were performed in water at $360^{\circ}C$. The binary alloys containing 0.5, 0.8 and 1.5wt.% Sn showed the transition corrosion rate at 15 days. On the other hand, the binary alloy containing 2.0wt.% Sn showed a good corrosion resistance without the transition of corrosion rate up to 80 days. The corrosion rate of the ternary alloy increased with increasing Sn content. The difference of corrosion behaviors between binary and ternary alloys is considered due to the different solubility of Sn, Nb content and precipitates. The corrosions of Zr-xSn and Zr-0.4Nb-xSn alloys would be controlled by the fraction of tetragonal-$ZrO_2$and the amount of hydrogen pick-up.

• Korea Journal of Hospital Management
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• v.23 no.2
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• pp.54-66
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• 2018

Purpose: This study was to figure out relationships of perceived Technology Readiness Index(TRI), usefulness, acceptance intension, and the recognition of substitute employment of medical personnel on the artificial intelligence (AI) and internet of things (IoT) among main technologies. Methodology: To achieve the purpose, this study utilized structured survey tools to conduct a questionnaire survey of nursing, administrative and medical technology professionals at six university hospitals in Korea metropolitan area. A PLS(Partial Least Square) Path analysis was utilized To analyze the material. Findings: In the relation with the technology readiness and perceived usefulness, it had a positive influence to the perceived usefulness when the optimism and innovativeness were higher and the discomfort was lower. In the relation with the technology readiness and acceptance intension, it showed a positive influence when the innovativeness was higher and the discomfort was lower. In the relation with the perceived usefulness and acceptance intension, it had a positive influence to the acceptance intension when the perceived usefulness was higher. In the relation with the acceptance intension and the recognition of substitute employment, it showed a positive influence to the recognition of substitute employment when the acceptance intension was higher. Practical Implications: Judging based on the above study results and reference reviews, it confirmed that it is necessary to prepare in the level of hospital organization in the $4^{th}$ Industrial Revolution. They should increase the efficiency of human resources through the technological factors or changes of employment types for the additional demands of human resources to handle increasing medical demands or induce to secure necessary abilities which are changing at the right time by performing the $4^{th}$ Industrial Revolution related re-training continuously to develop the value of existing human resources.

• Journal of the Korean Crystal Growth and Crystal Technology
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• v.27 no.4
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• pp.154-161
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• 2017

$Zn_2TiO_4$, which is a progenitor of zinc crystallization, plays a significant role in controlling the crystallization of willemite ($Zn_2SiO_4$) in forming glaze at low temperatures. Thus, $Zn_2TiO_4$ was used to formulate stable willemite and to gain structural control. When synthesized 15 wt% of $Zn_2TiO_4$ is added to engobe and then applied, it can manipulate its crystallization and location. Additionally, when colorant is added to $Zn_2TiO_4$ and then applied to engobe, the mixture's colorant effect can be shown at crystallization. Certain characteristics of synthesized $Zn_2TiO_4$ enable various engobes to be applied to clay bodies. With a single glazing, the crystallization, location, and color of the crystals can be discretionarily regulated.