• 보존과학연구
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• s.37
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• pp.43-51
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• 2016

A wooden rice chest in National Museum of Korean Contemporary History was colored by black lacquer but it was degraded and fallen apart partially. The condition of the paint of front and left sides were relatively fine, but the coat of the top, back and right sides were exfoliated. The legs at the bottom of the chest were severly degraded and turned whitish. After condition checking flakes and deterioration of film, the conservation treatment was undertaken with cleaning surface. Wet cleaning was conducted that area had lots of dust area. Apply watery animal glue to degraded lacquer layers. The legs were exfoliated a lot, so applied watery animal glue several times. Other side of rice chest except Gaepan, that was not felt sense of difference, colored centrally Gaepan.

• Journal of the Korea Institute of Building Construction
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• v.18 no.5
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• pp.479-488
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• 2018

The issue of waste and its recycling is perceived as a worldwide environmental problem, and the plastic waste is perceived as the biggest social problem threatening the lives of mankind. The vertical protective net, manufactured by using the plastic resin is vertically installed on the outside in case of formwork at the construction site, in order to prevent the fallen objects and scattered dusts. The objective of this study is to understand the actual use status of vertical protective net in the construction site, to examine the changes in the environment-related regulations recently strengthened in the construction site, and also to improve the field technicians' perception of it. And based on it, this study aims to suggest the measures for using the rational and environment-friendly materials and also for promoting the recycling of vertical protective net as the vertical protective nets made of plastic resin are thoughtlessly used in the construction site.

• Korean Journal of Construction Engineering and Management
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• v.11 no.3
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• pp.64-71
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• 2010

Since 2010, it is estimated that the old building to be dismantled potentially will be about 8.9 million house in domestic country. Consequently, now domestic demolition market size of about 1.5 trillion won is forecasted to be grow rapidly into the size of 5.8 trillion won. But in the domestic country, preparation of the raw and regulation for the demolition industry is very insufficient compared with advanced country, and the related research is also very insufficient. Therefore, in this study, it is performed to analyse and predict a trend of domestic demolition market after analysing a current trend in overseas demolition industry. A demolition industry is a related industry fallen behind over 25 years compared with a construction industry. The exact analysis of those trends will make it possible to set the standard for demolition waste management. Also this study suggests methods be able to develop the demolition industry into main area of construction industry through those analysis.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.10
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• pp.4354-4358
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• 2011

Many Korean construction companies have fallen on hard times because the construction business continues to stagnate. Therefore it is necessary to measure the management efficiency for efficient operation and strengthening competitiveness of them in order to survive a difficult situation. This paper proposes a combined ANP and DEA model to analyze the efficiency of the listed construction firms. In order to determine the input and output variables of DEA, the ANP model is applied to evaluate the importance of input and output variables. The benchmarking companies and efficiency value for the construction firms with inefficiency are also provided to improve the their efficiency. The 57 listed construction companies consisted of 36 listed on KOSPI and 21 listed on KOSDAQ are analyzed in this study. The analysis results show that 11 companies whose values of CCR are 1, and 14 firms whose values of BCC efficiency are 1. In additions, the 19 firms have the scalability efficiency. Finally, we test the correlation between efficiency and the stock price.

• Journal of Korean Society for Geospatial Information Science
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• v.18 no.1
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• pp.99-109
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• 2010

The U-City comprehensive plan has been settled on November in 2009 by U-City law which was enacted in 2008. On this, the U-City plan's framework which local governments established has been set. However, those who work for U-City in local governments and private sector would be fallen into confusion because they have not fully understood yet the concept of planning system in the U-City plan. In this condition of the early stage, some problems that are overlapping investments and lack of coordination between plans may occur. On this background, it is needed to understand the U-City plan's status and role by figuring out the relationship between U-City plan and other related plans. The goal of this paper is to suggest implications that are differences and similarities for coordination among the plans through a comparison with detailed instructions and laws related to U-City planning.

• The Journal of Pediatrics of Korean Medicine
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• v.24 no.3
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• pp.121-137
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• 2010

Objectives: The purpose of this study is investigate about chief complaints of pediatric outpatients in the oriental medicine hospital and search for a latest of patients and their symptom. Methods: The study was composed of 3024 new patients aged between 0 and 20 who had been visited pediatrics in Kyung Hee oriental medicine hospital from 2009 March to 2010 February. Results: In age distribution, 1 year old child have most visited, and the number of the patients have fallen sharply as age have increased. The most visited month is August, and the least is November. In systemic division of chief complaints, in order of respiratory part, growth part, restorative herb medicine part, digestive part, neurologic & psychologic part, dermatologic part visited in patients number, and in single chief complaints, in order of growth, restorative herb medicine, anorexia, rhinosinusitis, cold, atopic dermatitis, seizure & epilepsy have visited. As for age and systemic division, between 1 and 6 years old, the patients of respiratory division have most visited, more than 7 years old, growth division. As for age and single chief complaints, in 0 year old, seizure & epilepsy have most visited, between 4 and 6 years old, rhinosinusitis, more than 7 years old, growth. Growth and respiratory division have increased the most in August, restorative herb medicine and digestive division have increased the most in September. In single chief complaints, patients of growth have most visited in most of time, but in September and November patients of restorative herb medicine have visited the most. Conclusions: The most visited division was respiratory part, and the most visited chief complaints was growth. More data of patients should be accumulated for further study, and we expect more specific study would be done about many kinds of disease in basis of this study.

• The Korean Journal of Quaternary Research
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• v.15 no.2
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• pp.83-91
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• 2001

The environmental change during the upper Holocene was restored at Kimpo alluvial plain on the left bank of Han-river near the Yellow Sea according to the results of pollen analysis and carbon dating, based on the sea-level change from Ilsan area. Pollenzone I (5.8~7.0 m.a.s.l.) was the period of AP-dominance, including mostly Alnus. Study area was under the lagoon or swamp environment influenced by Flandrian transgression during 5,000~3,200 BP. Pollenzone II (7.0~7.4 m.a.s.l.) was the period of Spore & NAP-dominance. It represents that the vegetational environment was changed to drier condition by falling underwater surface caused by sea-level regression, and influenced by human activity during 3,200~2,300 BP. Subzone I a represented the characteristics of the climax of transgression. During subzone I b, herbs with the dominant Alnus were increased gradually, and it was correlated to the stagnation of high sea-level. Subzone II a was the dominant period of Spore by the gradual falling of sea-level. After that, the study area in swamp was emerged to the lowland by the fallen sea-level and herbs, especially Gramineae increased suddenly during Subzone II b. The sudden increase of NAP such as Artemisia, Chenopodiaceae and Umbelliferae with Gramineae during this period indicates the beginning of agriculture at this study area.

• Journal of Korean society of Dental Hygiene
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• v.17 no.3
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• pp.539-551
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• 2017

Objectives: The purpose of this study was to investigate the changes in factors on unmet dental scaling rate before and after the national health insurance. Methods: This study used the $2^{nd}$ data from the Community Health Survey. The study participants numbered 209,341 in 2011 and 219,517 in 2013.The average age was $51{\pm}17$ in 2011 and $52{\pm}17$ in 2013. Data were analyzed by descriptive statistics, chi -squared test and logistic regression using SPSS 23.0. Results: The scaling experienced rate of Korean adults has fallen by 3.5% from 66% to 69.5%. Logistic regression analysis showed that 2.7 times more 'people who were educated at elementary school level or lower' did not use dental scaling compared to higher educated children. Agriculture, forestry and fisheries workers did not use scaling at 2.0 times. Local residents with an income of less than one million won did not use 1.7times scaling. Local residents of 'no private insurance' did not use scaling at 1.5 times. In the case of the predisposing factors, the 20s had less than 1.8 times scaling compared to 50s. In the case of needs factor, local residents who experienced 'bad oral health status' and 'dental calculus' were treated scaling 1.3 times less compared to people with good oral health status and normal periodontal symptoms. Conclusions: In Korea, local residents are less frequently treated scaling due to enabling factors such as accessibility. In addition, predisposing factors such as age and sex, and oral health status and periodontal symptoms were related to not using the dental scaling. Therefore, the universality of health care services should be considered so that people who need periodontal care can use scaling.

• Journal of Animal Science and Technology
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• v.51 no.5
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• pp.427-432
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• 2009

This study was undertaken to screen a high xylanase and mannanase producing microbes. In the first experiment, screening was undertaken against 50 samples of microorganisms having xylanase and mannanase activities from soil and fallen leaves. The screening process has focused on picking out fungi having high xylanase and mannanase activities under the solid-state fermentation. The xylanase and mannanase activities of 6 screened microbes were 0.9~1.6 unit/mL and 0.2~0.4 unit/mL, respectively, under the submerged fermentation condition. However, under the solid-state fermentation, xylanase and mannanase activities were 103.7~220.0 unit/g and 20.1~40.3 unit/g, respectively. Finally one microbe (E-3) was selected and its xylanase and mannanase activities were 197.3 unit/g and 39.9 unit/g, respectively. The morphological and molecular biological classification of E-3 showed 99% homology with the Aspergillus niger.

• Archives of Plastic Surgery
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• v.35 no.2
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• pp.201-204
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• 2008

Purpose: Now the CT scanner and PACS program proved to be an excellent instrument for detection and localization of most facial foreign bodies above certain minimum levels of detectability. The severity of injury in penetrating trauma on the face is often underestimated in physical examination. Wood, with its porous consistency and organic nature, provides a good medium for microbial agents. This is a report of our recent experience with wooden foreign bodies in the parotid gland imaged with CT. Methods: A 9-year-old boy was referred for evaluation of possible retained foreign body within his face. One day earlier, he had fallen, face down approximately 1 miter onto ground. He had subsequently undergone an exploration of his right parotido-masseteric area at an outside hospital with repair of a right facial laceration. Enhanced 2 mm axial and coronal CT scans were obtained through the face. Axial and coronal CT images were obtained with a General Electric(Milwaukee, Wis) 9800 CT scanner at 130 kV, 90 mA, with a 2 mm section thickness. Results: We finally decided the linear "gas" attenuation was a foreign body because of its linear configuration, which did not conform to that of an anatomic structure, and on the basis of articles that described a wood foreign body in the orbit as having the appearance of air. We found that wood was hypoattenuating($-464{\pm}27HU$). Conclusion: We recommend this type of software program for CT scanning for any patient with an injury on the face in which a foreign body is suspected.