• Journal of Technology Innovation
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• v.15 no.1
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• pp.1-26
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• 2007

This study's purpose is to promote the development of CT industry by analizing the causal relationship between technology factor and commercialization of Tech. in CT SMEs and Ventures. The result is that Only technology experience accumulation among technical factors(technology develpoment cost, technology experience accumulation, technology concentration, technical expertise) has a significant effect on commercialization success or failure and non-technical factors have not a significant effect on.

• International conference on construction engineering and project management
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• 2013.01a
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• pp.315-320
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• 2013

The aim of this study is to compare efficiency and Total Factor Productivity(TFP) between Korean and Japanese construction firms in Korea and Japan over the period of 2005-2011. The results of this study are as follows. Efficiency scores of Korean construction firms are 0.797, and Japanese construction firms are 0.921. Second, annual total factor productivity growth of Korean construction firms is 0.5% and technical progress do much for TFP decrease. However Japanese construction firms marked annual increasing of 2.5% of TFP. Third, technical progress contributed in TFP increase of construction firms in Korea. Korean construction firms, however, relatively lagged behind Japanese construction firms in technical progress. Therefore, Korean construction firms need strategies to achieve technical advances including adopting new technology or process innovation to maintain competitiveness, survive, and develop in the future competition with Japan.

• Biomolecules & Therapeutics
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• v.24 no.2
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• pp.184-190
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• 2016

Rosa rugosa Thunb, a deciduous shrub of the genus Rosa, has been widely used to treat stomach aches, diarrhoea, pain, and chronic inflammatory disease in eastern Asia. In recent years, our research team has extensively studied the Rosa rugosa flower extract, and specifically undertook pharmacological experiments which have optimized the extraction process. Our methods have yielded a standard extract enriched in phenolic compounds, named PRE. Herein, we expand our efforts and evaluated the anti-inflammatory activity of PRE on lipopolysaccharide (LPS)-induced inflammation in RAW 264.7 macrophages. PRE significantly inhibited production of nitric oxide (NO), prostaglandin $E_2(PGE_2)$, tumor necrosis factor (TNF)-${\alpha}$, interleukin (IL)-6, and interleukin $1{\beta}$ (IL-$1{\beta}$), as well as expression of their synthesizing enzymes, inducible nitric oxide synthase (iNOS) and cyclooxygenase2 (COX-2). Furthermore, PRE inhibited activity of mitogen-activated protein kinases (MAPK) as well as nuclear factor-kappa B (NF-${\kappa}B$) signaling pathway. Our findings are the first to explain the anti-inflammatory mechanism by PRE in LPS-stimulated macrophages. Given these results, we propose that PRE has therapeutic potential in the prevention of inflammatory disorders.

• Proceedings of the Korean Geotechical Society Conference
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• 2005.03a
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• pp.777-780
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• 2005

The bench of cut-slope is necessary to stabilizing. But it is possible to be a weak zone in slope. When a small scale failure is occurred in a bench, it influence a large scale failure of slope. So when it is found out any unstable factor, weathering of rock, a direction of joint in a bench, if the bench is reinforced suitably, the holly failure is prevented in cut-slope

• International journal of advanced smart convergence
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• v.11 no.2
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• pp.171-184
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• 2022

The purpose of this paper is output oriented, in order to maximize the output level of sustainable development efficiency of foreign trade in western China with limited input. This paper adopts the relevant input-output indicators of sustainable foreign trade development of 11 provinces and cities in western China from 2016 to 2020, and uses DEA model to measure their technical efficiency, pure technical efficiency and scale efficiency. Malmquist index was used to calculate the total factor productivity change index of each province in western China from 2016 to 2020. We found that, on the whole, the average values of technical efficiency, pure technical efficiency and scale efficiency of provinces and cities in western China from 2016 to 2020 are greater than 0.8, indicating that the western region has high technical efficiency, relatively high management and institutional level and high existing scale level. Scale efficiency is lower than pure technical efficiency on the whole, indicating that the current sustainable development efficiency of foreign trade in western China is mainly limited by its scale level. The technological progress index is higher than the technological efficiency change index, indicating that the total factor productivity of the sustainable development of foreign trade in western China is mainly driven by technological progress and more influenced by external factors. We think the conclusion of this study can provide important reference information for the sustainable development of foreign trade of provinces and cities in western China.

• The Journal of Fisheries Business Administration
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• v.45 no.1
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• pp.63-77
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• 2014

This study is to estimate the recent changes in total factor productivity of 15 Korean adjacent water fisheries based on Malmquist productivity indices. The study adopted both input and output oriented productivity measures utilizing a hyperbola distance function. In addition to this point, the study also calculated the 95% confidence interval for the various components of the productivities in order to access the statistical significance of estimates using 2000 times of re-sampling process through the smoothed bootstraping. The results of the study showed us that there was 18% reduction in the overall total factor productivity during the study period from 2007 to 2011, which turned out to be 5% of annual decrease in productivity. The study found that the main reason of this decrease in total productivity is about 22% downward shift of a fisheries production function due to recent conditions of a devastated fishing ground. When we evaluated the statistical significance of changes in technical efficiency combining both pure technical and scale efficiency based on the 95% confidence intervals, we could not find any evidence of changes in those components of total factor productivity. When we accessed the productivity of the each of 15 adjacent water fisheries methods, only the large danish seine fisheries showed us about 7% increase in productivity. Even though the large trawling and the large tow-boat trawling revealed no changes in productivity, all of the other 12 fisheries suffered the decreases in productivities.

• The Journal of Asian Finance, Economics and Business
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• v.7 no.11
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• pp.1033-1039
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• 2020

Vietnam is conducting an export-led growth model and labour-intensive industries contributing majorly to the total export value. In the context of Industry 4.0, the labour-based industries are significantly affected; hence, enhancing productivity is the key measure to maintain these industries. The garment industry contributes significantly to the total export value of Vietnam. Based on meta-frontier framework, the approach of data envelopment analysis is used to measure technical efficiency of Vietnamese garment firms and the global Malmquist TFP index is utilised to identify productivity change and its components including efficiency, technology and technical gaps between different groups of firms. The data of Vietnamese garment firms from 2013 to 2018 collected from the Vietnam General Statistic Office is used in this study. The results show that: (i) The total factor productivity of Vietnamese garment firms growth, technical progress is the main contributor; (ii) The private garment sector is the leading group; (iii) There is a large technological gap among Vietnamese garment sectors. The private and FDI garment firms have experienced a growth in all components of total factor productivity change. Meanwhile, technological progress change is the main reason to constrain the productivity growth of state-owned garment firms.

• The Korean Journal of Emergency Medical Services
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• v.13 no.3
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• pp.19-28
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• 2009

Purpose : This study compared before and after emergency patient evaluation education of the 1st graders at the department emergency medical technology(EMT) students, and analyzed its effects on patient evaluation ability after education. The aims of this study was to develop effective educational program and to provide basic materials for its educational method. Methods : This study was carried out by 66 first graders attending the department of emergency medical technology(EMT) at a college in G province and data were collected from Apr. 1 to 2, 2009. The questionnaire consisted of knowledge of emergent patient evaluation, academic self-efficacy, and technical performance after emergent patient evaluation education. We analyzed the influence of knowledge and academic self-efficacy on accurate technical performance with SPSS 14.0 version. Results : 1. In knowledge score, it was 9.27 before education and increased to 35.19 after education and that there was statistically significant difference. In academic self-efficacy, task difficulty preference scored 2.73 before education and 3.97 after education, self-control efficacy scored 2.84 before education and 4.05 after education, self-confidence scored 2.45 before education and 4.21 after education. There were statistically significant increases after education. Technical performance scored 0.00 before education, but it scored 18.78 after education and there was statistically significant increase after education. 2. In sex as one of general characteristics, self-confidence which was sub-factor of academic self-efficacy scored higher in male students(4.28) than in female students(4.10). There was statistically significant difference(p < 0.05). 3. Knowledge had positive correlation with self-control efficacy which was the sub-factor of academic self-efficacy(r = 0.249, p < 0.05) and self-confidence which is the sub-factor of academic self-efficacy had the positive correlation with technical performance(r = 0.258, p < 0.05). 4. Self-confidence which was the sub-factor of academic self-efficacy(B = 0.372, p < 0.05) had statistically significant influence on technical performance. ability of self-confidence to explain technical performance(R2) was 11.10%. Conclusion : From the results of this study, it is necessary that EMT students should learn professional first aid, accurate patient evaluation through self-efficacy development.

• Journal of Industrial Convergence
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• v.18 no.5
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• pp.14-22
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• 2020

In this study, in addition to non-technical innovation activities such as organizational innovation and marketing innovation, the purpose of this study was to verify through empirical analysis what mechanism appropriation affects the business performance of a company. Data were collected from the 2018 Korean Business Innovation Survey: Manufacturing Sector and used as analysis data. As a result of the analysis, it was verified through empirical analysis that non-technical innovation improves management performance, appropriability is affected by non-technical innovation, and acts as a mediating factor between management performance. Through this empirical analysis, it was derived that considering appropriation along with non-technical innovation on the recently studied non-technical innovation can be a meaningful study, and since securing such appropriation is an important factor in determining the business performance of a company. Companies need insight into the strategic use of technology protection measures to secure appropriation. As a limitation, it was limited to studies that verify that it has a mediating effect of non-technical innovation and appropriation, and it is considered that it is possible to develop a study that affects the management performance of a company through more various verification methods for future studies.

• International Journal of Korean Welding Society
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• v.1 no.2
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• pp.18-22
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• 2001

The stress intensity factor has been calculated theoretically for the cracked plate subjected to remote normal stress and reinforced with a plate by symmetric seam welding. The singular integral equation was derived based on displacement compatibility condition between the cracked plate and the reinforcement plate, and solved by means of Erdogan and Gupta's method. The results from the derived equation for stress intensity factor were compared with FEM solutions and seems to be reasonable. The reinforcement effect gets better as welding line is closer to the crack and the stiffness ratio of the cracked plate and the reinforcement plate becomes larger.