용도별 세계목공예품의 수종조사

김사익,조종수,윤승락,노정관,나종범,김동귀,Kim, Sa-Ick,Jo, Jong-Su,Yoon, Seung-Lak,Roh, Jeong-Kwan,Ra, Jong-Bum,Kim, Dong-Kooi 한국가구학회 2006 한국가구학회지 Vol.17 No.1

This study attempted to visually inspect eight hundred wood crafts collected from various countries. These include sculputures, toys, jewl cases, kitchen wares, candle holder and wooden vases, stationery, sport outfits and etc. The most impressive wood is Myrtlewood, a broadleaf evergreen which grows along the coastline of southern Oregon and northern Califonia. Myrtlewood possesses a wide variety of grove patterns. This unique wood varies in color from a deep, rich brown to silver grey, red and every yellow. Myrtlewood is being recognized as being one of the most beautiful hardwoods in the world.

연구논문 / 표고버섯 자실체 형성에 미치는 티아민의 영향

신갑균(Gab Gyun Shin),이상원(Sang Won Lee),김사익(Sa Ick Kim) 한국식품저장유통학회 ( 구 한국농산물저장유통학회 ) 1999 한국식품저장유통학회지 Vol.6 No.4

韓紙 슬러지-시멘트 複合體의 水和反應에 關한 硏究

金思翼,趙鍾洙,金在慶 진주산업대학교 1995 論文集 Vol.34 No.-

This experiment was carried out to investigate the hydration of Hanji sludge-cement composite. The percentage of Hanji sludge per cement is 7.5, 15 and 30% respectively. The results indicated that the Hanji sludge of 7.5% had the most effect on hydration than any other specimens. Hanji sludge (Ⅱ),(Ⅲ) and Larix leptolepis(Sieb. et Zucc.) Gorden were proved to be highly inhibitory in a series of hydration tests. The addition of chemical additives, calcium chloride(CaCl_2) appears to enhance compatability in cement-wood-water mixes.

생강나무 種實油의 脂肪酸 分析

金在慶,趙鍾洙,金思翼 동국대학교 생명자원과학대학 연습림 1995 연습림논문집 Vol.- No.4

Lindera obtusiloba seed oil was extracted by diethyl ether and fractionated into neutral lipids, glycolipids and phospholipids by silicic acid column chromatograpy. Fatty acid composition of each fraction was examined by gas chromatography. The results obtained were summarized as follows; 1. The proximate chemical composition of Lindera obtusiloba seed was 13.0% in crude protein, 53.5% in fat, 14.4% in carbohydrate and 1.8% in ash content. 2. The values of acid, saponification, iodine and peroxide from Lindera obtusiloba seed oil were 0.93, 269.50, 61.30 and 120.30, respectively. 3. The total lipid was composed of neutral lipid 93.38%, glycolipid 4.52% and phospholipid 2.10%. 4. The fatty acid composition of total lipids were 38.34% in lauroleic acid, 33.23% in lauric acid, 7.75% in oleic acid, 5.38% in mylistoleic acd, 4.69% in capric acid and 3.89% in caproleic acid. 5. The fatty acid composition of neutral lipids were 38.61% in laurolec acid, 33.66% in lauric acid, 7.46% in oleic acid, 5.46% in myristoleic acid, 4.57% capric acid and 3.63% in caproleic acid. The style in some resemblance between total lipids and neutral lipids. 6. The fatty acid composition of glycolipids were 27.59% in lauroleic acid, 26.52% in lauric acid, 13.58% in oleic acid and 8.37% in unknown substance. 7. The fatty acid compositions of phospholipids were 24.67% in oleic acid, 13.31% in lauric acid, 12.71% in linoleic acid, 10.24% in lauroleic acid, 8.43% in myristic acid and 14.47% in unknown substance. The content of oleic acid was shown higher in the phospolipide than other lipids.

製紙 슬러지-시멘트의 水和反應에 關한 硏究

金在慶,金思翼,趙鍾洙 진주산업대학교 산업과학기술연구소 1996 산업과학기술연구소보 Vol.- No.3

製紙工場에서 發生되는 슬러지의 再活用 方案의 一環으로 製紙슬러지와 시멘트의 水和反應을 木質- 시멘트와 比較하여 測定하였으며, 硬化促進을 僞한 添加劑로는 CaCL_2를 選定하여,木質-시멘트와 比較하여 시멘트 重量當 3% 그리고 5% 添加하였다. 또한 슬러지 - 시멘트間 그리고 本質 - 시멘트間의 結合狀態와 超微細構調를 살피기 僞하여 走査電予顯微鏡으로 斷面을 觀察하였다. sludge I의 最高溫度는 50.0℃, 最高 溫度到達時間은 18.2 時間, 硬化障害指數는 13.4 %를 나타냄으로서 木質- 시멘트의 水和反應 보다도 가장 良好한 反應을 보였다. 硬化促進을 僞한 添加劑에 依해서는 木質-시멘트의 水和反應이 슬러지- 시멘트의 水和反應 보다도 더욱 改善된 것으로 나타났다. SEM觀察에서도 sludge I의 境遇는 시멘트와의 硬化障害 現像이 나타나지 않아 木質보다 優秀함이 立證되었다. This study was examined on hydration of paper sludge - cement composite. The intention was to provide a preliminary elucidation on how cement and sludge bond together. The result indicated that the paper sludge I had the most effect on hydration than any other specimens. A scanning electron microscope (SEM) was used to examine the cement formations and sludge(wood) - cement formations. The addition of chenmical additives, calcium chloride, appears to enchance compotibility in cement-wood- water mixes.

靭皮纖維에 關한 硏究(Ⅱ) : 인피섬유의 전자현미경적 관찰 The Observation of Bast Fiber for Scanning

김재경,윤승락,김사익,노정관 진주산업대학교 2001 산업과학기술연구소보 Vol.- No.8

고품질의 한지를 제조하기 위해서는 인피섬유의 특성을 구명하여야 하는데 이에 따라 닥나무, 뽕나무, 삼지닥나무의 인피섬유 세포벽의 특성에 대하여 주사전자현미경과 편광현미경으로 관찰한 결과는 다음과 같다. 세포벽이 두꺼운 세포가 인피부에 존재하는 것은 닥나무, 뽕나무와 유사하지만, 형태적으로 차이를 보이고 있다. 닥나무, 뽕나무의 경우는 세포내강이 없이 전체적으로 꽉 차있는 것과 같은 형태지만, 삼지닥나무는 일정 크기의 세포내강이 보인다. 그것은 삼지닥나무가 팥꽃나무과이기 때문에 뽕나무과의 수종과 조직학적인 차이가 있기 때문으로 추정된다. 3수종의 인피부섬유 세포벽은 2차벽의 폭보다 젤라틴층의 폭이 넓이 매우 넓었다. To evaluate characteristics of bast fibers for manufacturing of high quality HANJI, the cell wall properties of various bast fibers originated from B roussonetia kazinoki Sieb., Morus alba var. romana Loddiges, and Edzeworthia papyrfera Sieb. et Zucc. were determined usiug electron and polar microscopes. As results, the cells with thick cell wall was similarly presented in both Broussonetia kazinoki Sieb., and Morus alba var. romana Loddiges, but the cell types in both species were morphologically differentiated. In Broussonetia kazinoki Sieb., and Morus alba var. romana Loddiges, the cell wall was totally filled without lumen, while in Edzeworthia papyrfera Sieb. et Zucc. the constant size of lumen was presented. This is deducted that Edzeworthia papyrfera Sieb. et Zucc. one of Thymeleaceae, was anatomically differentiated from the species of Moraceae. The cell wall of bast fibers from the above 3 species was characterized by narrow secondary wall and wide gelatin layer.

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.

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.

國內 Fiber Board 産業의 現況의 展望

金思翼,金在慶,趙鍾洙,尹承洛,盧正官 진주산업대학교 1999 산업과학기술연구소보 Vol.- No.6

상기에서 살펴본 바와 같이 국내 fiber board 산업은 생산 측면에서 목재 산업중 다른 판상제품에 비해 원자재 비율이 낮아 아직 개도국에 대한 경쟁우위를 일정기간 지속할 수 있을것으로 예상되지만, 인도네시아등에 비해 가격경쟁력이 취약하므로 고율의 수입관세가 지속유지되어야 하는 등 많은 문제점을 내포하고 있다. 따라서 국내 fiber board산업을 보호하기 위해서는 품질개선 및 기능성 부여, 원가절감등 을 통하여 fiber board산업의 안정화를 도모해야 할 것으로 생각된다. 또한 fiber board는 가구제조시 가장 중요한 원자재로써 그 용도가 거의 가구 재조용에 국한되어 있으나 향후 품질의 차별화 및 기능성 부여로 가구이외의 용도개발이 이루어져야만 그 수요확대에 따른 공급의 확대를 도모할 수 있을 것으로 판단된다. 최종적으로 국내의 현실을 감안한 fiber board산업은 양적인 성장을 위한 기술개발 투자가 지속적으로 이루어져야 할 것으로 판단된다. Domestic fiber board industry was less dependence rate of imported timber than plywood industry. So, until now fiber board industry will be estimate that domestic fiber board industry maintain competitive ability on the other developing countries. For the protection of domestic fiber board industry, it was necessary improving of quality, functional endowment and retrenchment of production cost. The use of fiber board has been limited to manufacturing furniture. If a use of fiber board is enlarged, supply on demand will be enlarged. Finally, domestic fiber board industry is needed more growth of quality than growth of quantity, and growth of quality on fiber board industry is required to much investment for technical development.

靭皮纖維에 關한 硏究(I) : 靭皮纖維의 形態的 特性 The Morphological Properties of Bast Fiber

金在慶,尹承洛,金思翼,趙鍾洙 진주산업대학교 1998 산업과학기술연구소보 Vol.- No.5

靭皮纖維의 特性을 究明하기 위하여 닥나무, 뽕나무, 삼지닥나무, 산닥나무의 인피섬유에 대하여 形態 및 細胞壁 特性을 檢討한 結果는 다음과 같다. 樹皮率은 樹齡이 增加 될수록 감소되는傾向을 나타내고, 삼지닥나무와 산닥나무가 닥나무와 뽕나무 보다 높았다. 纖維長 및 纖維幅은 닥나무와 뽕나무가 삼지닥나무와 산닥나무보다 길고, 넓었다. 4樹種 靭皮纖維의 纖維長은 木村纖維보다 길고, 뽕나무科 靭皮纖維의 纖維폭은 針葉樹 假導管보다 작고 闊葉樹 木纖維와 비슷하며 팥꽃나무科 靭皮纖維는 假導管과 木纖維의 폭보다 작았다. 4樹種의 靭皮纖維는 纖維表面에서 壁孔이 確認되지 않았고, 2次壁이 존재하고 있는 것이 확인되었다. 靭皮纖維의 細胞壁은 木村纖維의 細胞壁과 다른 細胞壁이 두껍고 細胞內腔이 작은 細胞가 分布되어 있다. In order to evaluate characteristics of bast fiber, the types and the cell wall properties of various bast fibers originated from Broussonetia kazinoki Sieb. Morus alba var, romana Loddiges, Edzeworthia papyrifera Sieb. et Zucc. and Wikstroemia irichotoma makino. In the other hand, Broussonetia kazinoki Sieb. et Zucc. and Wikstroemia trichotoma Makino. The pits were not find in fiber surface of bast fibers from 4 species, but the presence of secondary wall was surely confirmed. The cell wall structure of bast fiber was a little different from that of wood fiber.