목제(木製) 운동구 이용 수종에 대한 고찰

김사익 한국가구학회 2021 한국가구학회지 Vol.32 No.2

Crafts is like aliving organism that growing up continuously with human history. Craft is a beautiful instrument made by human hand, a creative art and a cultural inheritance of mankind. Craft is an aesthetic of life that is permissed on ‘use’, it’s practice, and a mirror reflecting the epoch as well. It also is cosilience of science, art and life, and a fruit of communication. Woodcraft activities have an inseparable relationship with our life, and it is a field that needs to be continued because of the value of education for the growing students. The interest in woodworking from childhood to old age is rapidly expanding nowadays, therefore this study has been done to provide images to those who are engaged in woodcraft business and also those who are interested in this field. If we look at the use of wood in our daily life, We can classify it into Architecture, Civil engineering, Furniture, Musical Instrument, Packaging, Recreational instrument, Exercise instrument, Stationery, Daily commodity, and Industrial use. Early golf clubs were almost certainly made entirely of wood with the clubhead and shaft being made of different types, glued together and bound in twine. Ash (Fraxinus spp.) and hazel (Corylus avellana) were used for the shaft, while beech (Fagus spp.), blackthorn (Prunus spinosa), pear (Pyrus communis), and apple (Malus Pumila) were popular for the head. In another sports item, the most frequently used species are hardwoods such as ebony (Diospyros ebenum), hicory (Carya spp.), box wood (Buxus sempervirens), beech (Fagus spp.), myall wood (Acacia pendula), mulga (Acacia aneura), cinamon wood (Cinnamomum camphora Sieb.), coach wood (Ceratopetalum apelatum), hinoki (Chamaecyparis obtusa), silver magnolia (Machilus thunbergii), hacverry (Celtis spp.), rose wood (Dalbergia nigra), ebony (Diospyros ebenum), oak (Quercus spp.), cherry (Prunus spp.), beech (Fagus spp.), bamboo (Phyllostachys bambusoides Siebold & Zucc.), walnut (Juglans regia), maple (Acer palmatum Thunb), bubinga (Guibourtia spp.), birch (Betula) and laminated wood.

목공예품의 이미지제공 및 수종분석(Ⅰ) - 목기류를 중심으로 -

김사익 한국가구학회 2014 한국가구학회지 Vol.25 No.3

Aggravation of natural environment, improvements in income, internet diffusion,spread of five-day work a week, and population aging seem very different from each other. However they boil down to consumption. These culture patterns are changing into environment-friendly and productive housing culture. In other words, people might tend to have frequentcontacts with not only environment-friendly housing in bustling cities but also woods thatis environment friendly materials in their leisure time. In the period of people young and oldalike are in favor of woodcrafts, this study was conducted for giving information to who speicalizedin woodcrafts. Furthermore, the study shows that other countries also added grain andfigure to woodcrafts for visually appealing.

터널 갱구부 저토피 및 관통부 변경에 따른 안정성 검토 사례 연구

이사익(Saik Lee),최영철(Youngchul Choi),정우용(Wooyong Jung),김국한(Kookhan Kim),김동인(Dongin Kim) 한국암반공학회 2013 터널과지하공간 Vol.23 No.2

국토의 70%가 산지인 우리나라는 도로건설 등에 필요한 토지가 매우 부족할 뿐만 아니라 환경에 대한 국민들의 관심이 고조되어 터널 시공이 증가하는 추세이다. 남해고속도로 냉정~부산간 확장공사 대동1터널 시공 시 계곡부 위치 및 갱문 이격으로 저토피가 발생하였고, 민원 등으로 착공이 지연되어 관통부 변경이 불가피하였다. 이에 다중TSP를 적용하여 관통부 위치를 변경하였고 안정해석을 실시하였다. 해석결과 터널의 안정성 에 문제가 없는 것으로 나타났으며, 시공 중 추가적인 안정성을 확보하고자 계측기 설치 및 기계굴착, 저토피구간 추가 보강, 반단면 굴착을 실시하였다. Around 70% of Korea is mountainous, an increase in tunnel construction. It’s due to the growing interest of the public for the environment and land required for the road construction is very scarce. During construction of ‘Daedong 1 tunnel’ in the expressway expansion project between Naengjeong and Busan, there are shallow shaft due to this tunnel located in the valley and the shafts are separated, and penetrating location change was inevitable for construction was delayed because of complaint. So, we change the position of the penetrating by applying multi-channel TSP, and conducted a stability analysis. The analysis results showed that there is no problem on the stability of the tunnel. To secure the construction of additional stability, We installed instrument, performed mechanical excavation, added reinforcement at shallow shaft and conducted bench cut.

수납장과 목조각의 실내 환경 변화 및 조성 효과 분석

김사익 한국건축친환경설비학회 2023 한국건축친환경설비학회 논문집 Vol.17 No.6

Interior decoration is a deliberate craft that ideally harmonizes the human environment, making spaces both technologically and artistically comfortable by fulfilling their essential purposes. The primary goals revolve around efficiently creating space to foster a pleasant environment, focusing on comfort and functionality. The inclusion of wooden sculptures brings a distinctive essence and ambiance to indoor spaces. Beyond their artistic allure, these sculptures infuse the environment with a natural and organic feel, connecting individuals to the innate beauty of nature. As wooden sculptures are integrated into interior settings, the arrangement and display drastically alter the spatial dynamics. This transformation influences the overall atmosphere by blending technical and artistic elements, enhancing the space’s character. The interplay between the placement and exhibition of these sculptures shapes the ambiance, creating a harmonious fusion of technical precision and creative expression. Ultimately, the incorporation of wooden sculptures into indoor environments aims to cultivate a more inviting and pleasant atmosphere. This amalgamation of space, artistry, and technology creates a captivating and comfortable setting that appeals to all who experience it.

외래 진료 미수금 제로(ZERO)화 방안

김사익 한국의료QA학회 2009 가을학술대회 Vol.2009 No.3

[< 전시-P-104 >] 칠불사(七佛寺) 아자방(亞字房)

김사익 韓國木材工學會 2017 한국목재공학회 학술발표논문집 Vol.2017 No.1

대나무재 - 시멘트 혼합 보드의 제조 (Ⅰ) - 수화반응을 중심으로 -

김사익,김재경,조종수,윤승락 한국목재공학회 1997 한국목재공학회 학술발표논문집 Vol.1997 No.-

木質과 製紙 슬러지- 시멘트의 水和反應에 미치는 添加劑의 效果

金思翼,吳正壽 동국대학교 생명자원과학대학 연습림 1993 연습림논문집 Vol.- No.3

This experiment was carried out to investigate the hydration reaction of paper sludge(wood) cement water mixtures by addition of chemical additives (CaCl_2). The percentage of paper sludge per cement weight is 7.5%(Ⅰ), 15%(Ⅱ) and 30%(Ⅲ) respectively. To add calcium chloride(CaCl_2) to the mixture as an accelerator was added paper sludge(wood) cement mixture in the ratio of 0.5, 2.0, 3.5, 5.0, 6.5% to cement weight. The obtained results were as follows: 1. Sludge Ⅰ tooks 8.5 hours to get the highest temperature, 64.3℃, indicating the inhibitory index of hydration, 1.4. So, the chemical additives(CaCl_2) in the ratio of 3.5% to cement weight has brought the most effective reaction of hydration on cement. 2. Sludge Ⅱ tooks 12.2 hours to get the highest temperature, 54.7℃, indicating the inhibitory index of hydration, 4.7. Thus, the reaction of hydration was improved by the chemical additives in the ratio of 3.5% to cement weight. 3. As concerned with the additives, for Korean pine, it tooks 9.4 hours to get the highest temperature, 53.7℃, indicating the inhibitory index of hydration 4.4. Thus, the reaction of hydration was also more improved by the additives in the ratio of 5.0% to cement weight. 4. Italian poplar tooks 9.2 hours to get the highest temperature, 54.2℃, indicating the inhibitory index of hydration, 15.9. Thus the chemical additives in the ratio of 65% to cement weight has brought the most effective reaction of hydration.

竹粉-시멘트의 水和反應에 關한 硏究

金思翼,金在慶,趙鍾洙,尹承洛 진주산업대학교 1997 산업과학기술연구소보 Vol.- No.4

대나무를 纖維工業의 原料로 利用하기 僞하여 竹粉 시멘트의 水化反應을 木質-시멘트 및 製紙슬러지-시멘트와 比較하여 測定하였다. 水化反應 促進을 위한 化學添加劑로는 CaCl_2와 MgCl_2 그리고 NH_4Cl을 시멘트 重量當 3%를 各 試驗片에 添加하였다. 또한 無處理時의 各 試驗片과 化學添加劑를 使用한 名 試驗片의 結晶形態 및 結晶構造를 調査하기 僞하여 走査電子顯微鏡으로 斷面을 測定하였다. 無處理時의 境遇, Henon bamboo, Moso bamboo 및 Giant timber bamoo는 전혀 水化反應을 보이지 않았으며, 化學添加劑를 利用한 境遇에는 木質水準으로 水化反應이 나타나 竹紛을 利用한 시멘트와의 水化反應은 使用해야 함을 알수 있었다. This study was examined on hydration of bamboo meal-cement composite. In a separate experiment, the heat of hydration generated from the bamboo meal (wood meal and paper sludge) - cement - water system was measured, and Moslemi's inhibitory index was caluated from the results. To improve the hydration of bamboo meal- cement, a series of experiments were conducted with the addition of various chencal additives such as calcium chloride(CaCl_2 ), magnesium chloride( MgCl_2 ) and ammonium chloride (NHCl) The amount of chemical additives was 3% based on the weight of the cement. A scanning electron microscope (SEM) was used to examine the crystallization of cement and bamboo meal ( wood and paper sludge ) - cement composite. These species , Henon bamboo, Moso bamboo and Giant timber bamboo were proved to be highly inhibitory in a series of hydration tests. The addition of chemical additivies, especially calcium chloride and magnesium chloride, appears to enhance compatibility in bamboo meal-cement-water composite.

목공예품과 이용수종 현황 - 목재장식품을 중심으로 -

김사익 한국가구학회 2020 한국가구학회지 Vol.31 No.1

Wooden pieces are material made of wood. Wooden products include furniture such as beds, chairs, chairs stool stools and tables, as well as jewelry boxes, wooden rice-cakes, dressing stand, mask and dolls. In Wooden ornaments, the most frequently used wood species are Oregon Myrtle wood (Melia azedarach), Table dog wood (Cornus controversa Hemsl.), Betula (Betura schmidtii Regel), Basswood (Tilia amurensis Rupr.), Spruce (Picea jezoensisb Carr.), Jelutong (Dyera costulata Hook.), Ruber tree (Hevea brasiliensis Muell.), Rosewood (Dalbergia nigra Fr). Maple (Acer spp.), Juniper (Juniperus spp), Bamboo, Plywoods and Laminated woods. In piano, the most frequently used wood species are hardwoods such as Mahogany (Swietenia macrpphylla), Brazilian rosewood (Dalbergia nigra Fr.), Ebony (Diosypros spp.), Black walnut (Juglans nigra L.), Maple (Acer spp.) and Red oak (Quercus rubra Linnaeus).