• 국제학술발표논문집
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• The 7th International Conference on Construction Engineering and Project Management Summit Forum on Sustainable Construction and Management
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• pp.159-166
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• 2017

Recently, the wooden structure has been revived again as an eco-friendly structure technique. It is the counterattack of the wood material, which has become more recognized as a finishing material pushed by the concrete material in the rapid growth after the Industrial Revolution. However, it is difficult to conclude that this is a tendency of the construction market in the whole country. Perhaps this is a tendency to appear more strongly in Korea. It could be seen by comparing the characteristics of the overseas construction market with Korean's and the advanced constructed case of large-scale wooden structures in overseas. National wooden buildings show own characteristics such as construction methods, materials, and member dimensions of wood structures by country, which could be seen as a result of continuously developing their own technology. However, in Korea, despite its unique wooden structure and technology (Hanok; Korean traditional housing), it has not been developed continuously and treated it only as a living building exhibit. This is evidenced by the fact that only one percent of the building is constructed with traditional wooden building technology. Therefore, there are various efforts to modernize the traditional wooden structure technology, but it still does not reach the level of advanced wooden technology abroad. The characteristics of the Korean wooden building market were analyzed in order to suggest ways to develop the Korean wood structure technology. The characteristics of Hanok construction were analyzed through quantitative criteria to define the main development tasks for Hanok development to propose the long-term development path.

• Journal of the Korean Wood Science and Technology
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• 제48권6호
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• pp.807-819
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• 2020

본 연구에서는 참나무시들음병에 감염된 신갈나무의 기초자료를 확보하기 위하여, 해부학적 특징을 비교·분석하고자 하였다. 해부학적 특징을 비교하기 위해, 감염목, 고사목 및 건전재 신갈나무를 수에서부터 10~50번째 연륜까지 10연륜 단위로 광학현미경과 주사전자현미경을 이용하여 관찰하였다. 목섬유 길이는 수에서부터 5연륜 단위로 측정하였고, 도관요소 직경 및 타일로시스를 포함한 도관의 비율은 10연륜별로 측정하였다. 횡단면 관찰 결과, 감염목과 고사목에서는 도관 내강에서 티일로시스와 함께 균사체가 관찰되었다. 목섬유 길이 및 도관요소 직경은 조사목 간 큰 차이를 보이지 않았다. 목섬유 길이는 미숙재 부위인 20~30연륜 이후 안정화되는 경향을 보였다. 타일로시스를 포함한 도관의 평균 비율은 감염목이 가장 높았고 특히, 감염목과 고사목은 40~50연륜에서 타일로시스의 비율이 가장 높았다. 이를 통하여, 참나무시들음병 피해목과 건전재 간에 큰 차이는 타일로시스의 비율로 생각되며, 피해목 이용에 있어 기초자료로 활용 가능할 것이라 사료된다.

• Journal of the Korean Wood Science and Technology
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• 제49권5호
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• pp.462-470
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• 2021

조선후기 국용목재에 사용된 수종을 파악하기 위하여 영건의궤 조선후기 11종의 영건에 명시된 수종을 분석하였다. 주요 용도로는 궁궐, 제실, 사묘, 성곽의 수리와 보수 공사에 사용된 것으로 파악되었다. 17세기~20세기 영건의궤에 명시된 수종 중 활엽수재로는 가래나무, 느티나무, 물푸레나무, 박달나무, 오동나무, 참나무류(갈참나무, 굴참나무, 떡갈나무, 상수리나무, 신갈나무, 졸참나무)가 확인되었으며, 침엽수재로는 소나무와 잣나무가 확인되었다. 문화재를 수리할 때에는 동일 수종을 원칙으로 하기 때문에 수종 조사는 중요한 부분이다. 각 수종에 대한 목재해부학적 이미지는 실제 사용된 목부재를 대신해서 국립산림과학원 목재표본실에 소장 되어있는 같은 수종 재감을 활용하였다. 조선후기 영건의궤 편역본을 통하여 목조문화재 건축물에 사용된 주요 수종을 알 수 있었으며, 수리·보수 시 사용될 목재 수종을 판정하는 데 필요한 목재해부학적 이미지를 마련하였다.

• Mycobiology
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• 제32권1호
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• pp.54-56
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• 2004

During the study of mushroom flora in Hongneung Arboretum, Ileodictyon gracile was confirmed as new to Korea and described based on morphological and microscopic characteristics in here. This species has subhypogeous, clathrate structure, and obovoid spores. The clathrate structures have $4{\sim}12$ polygonal meshes.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 2005년도 INTERNATIONAL SYMPOSIUM ON SOIL & GROUNDWATER ENVIRONMENT
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• pp.171-171
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• 2005

• Journal of the Korean Wood Science and Technology
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• 제25권4호
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• pp.1-9
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• 1997

The Abies koreana Wilson has been unique species of Korea and has not been clearly investigated about lignans of extractives. This studies have been carried out from the isolation and determination of lignans from alcoholic extractives in its xylem. Six lignans were isolated and their structures were determined by spectroscopic methods. They were two new compounds, (+)-koreslactol and (-)koreanol and four known compounds, lariciresinol p-coumarate, (+)-todolactol C, (-)-${\alpha}$-intermedianol, and (+)-pinoresinol.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2023년도 가을학술발표대회논문집
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• pp.85-86
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• 2023

In this study, charring properties such as charring layer and mass change of wood with temperature were investigated through cone calorimeter test on douglas-fir, which is representative of various wood structures. the results showed that ignitions at 390 degrees and a charring layer is formed.

• 한국가구학회지
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• 제26권4호
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• pp.392-397
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• 2015

This study was carried out to analyze the effects on mechanical properties of deteriorated wood member by outdoor condition. The surface color, mechanical properties and structural stability of traditional wooden structures, exposed in water and UV, could be changeable. For the purpose, accelerated weathering test based on outdoor condition was carried out. The weathering time levels were composed 0, 500, 1000, 1,500 and 2,000 hours and mechanical properties were evaluated on each specimen according to weathering time level. Bending properties were decreased on weathering but recovered after 1,000 hours. Fatigue and impact strength were decreased to 1,000 hours and did not changed since then. Abrasion resistance was minimized in 1,000 hours. This results could be utilized for effectively stability management of traditional wooden structures and members.

• 한국공간구조학회지
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• 제6권2호
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• pp.7-12
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• 2006

최근 환경문제에 대한 해결책으로 목조건물의 해체 및 목재의 재사용에 대한 관심이 높아지고 있다. 목조건물을 접합철물에 의해서 접합할 경우에는 건물의 해체시에 철재를 사용하지 않아 목부재의 절단이 매우 용이하고 목재의 재사용이 용이하도록 하는 장점을 가지고 있다. 대나무의 높은 인성은 목재 접합부의 강도와 안정성 확보를 가능하게 해주고 있다. 대나무 접합물은 2005년 일본 Aichi 세계박람회에서 Japan pavilion Nagakute 전시관 건물이 대나무 접합부를 사용한 목조건물이다.

• 대한의생명과학회지
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• 제15권3호
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• pp.257-260
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• 2009

Toll-like receptors (TLRs) recognize molecular structures derived from microbes including bacteria, viruses, yeast, and fungi. TLRs have emerged as a major signaling component of the mammalian host defense. TLR4 is a member of the Toll family that senses lipopolysaccharide (LPS), a cell wall component of gram negative bacteria. LPS recognition by TLR4 requires an additional accessory molecule, MD-2. LPS induces the activation of NF-${\kappa}B$ and IRF3 through MyD88 or TRIF-dependent pathways. The activation of NF-${\kappa}B$ leads to the induction of inflammatory gene products including cytokines and cyclooxygenase-2 (COX-2). This study was carried out to investigate the anti-inflammatory effects of oak wood vinegar. Oak wood vinegar inhibits the NF-${\kappa}B$ activation and COX-2 expression induced by LPS. These results provide new ideas to understand the mechanism of oak wood vinegar for its anti-bacterial and anti-inflammatory activities.