케나프 TMP, CTMP의 섬유 특성

윤승락,김사익,조종수,노정관,나종범,김동귀,최길동 진주산업대학교 산업과학기술연구소 2007 산업과학기술연구소보 Vol.- No.14

Thermomechanical pulp (TMP) and chemical thermomechanical pulp (CTMP) of kenaf cultivated in Korea were manufactured and their fiber properties were investigated. TMP made of the core part of kenaf showed various geometric types of fibers such as rectangular, spindle, and cylindrical forms. The most TMP made of the outer part of kenaf were composed of bast fibers, where no damages on the surface and cutting section of bast fibers was found. CTMP made of the core showed that some fibers were damaged. However, the fibers in CTMP made of the bast were observed not to be damaged. The TMP made of the core showed sound fibers, but the CTMP made of the core showed some damaged fibers. The TMP made of the bast showed curl indexes higher than the CTMP made of the bast, and most of fibers were not damaged in both TMP and CTMP pulps.

退溪의 生涯와 人間像

尹絲淳 단국대학교 퇴계학연구소 1987 退溪學硏究 Vol.1 No.-

닭 점막 및 표피조직내의 Transferrin Receptor의 분포에 대한 면역조직화학적 연구

조사선,유영복,이경훈,김지윤,이병란,차중익,백상호 대한해부학회 1996 Anatomy & Cell Biology Vol.29 No.4

펄프 叩解科程中 發生되는 微細纖維의 構造(I) : 針葉樹 펄프 Softwood Pulp

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

펄프 고해과정중 발생되는 微細織維를 究明하기 위하여 시간별로 TMP, KP를 고해하여 濾水度 변화, 微細織維발생량 및 형태에 대하여 검토한 결과는 다음과 같다. 1.고해시간이 길어지면 濾水度, 微細織維 발생량은 증가되고, 섬유의 朶軟性 차이로 KP보다 TMP가 높았다. 2.고해에 의해 발생되는 微細織維는 절단된 朶細胞 破片과 細胞壁 2次壁의 마이크로휘브릴이다. 3.TMP, KP에서 발생된 微細細胞의 종류는 同하지만, 형태에서는 差異點을 보이고 있다. 印解가 진행되면 朶細胞는 小片化되고, 마이크로휘브릴은 切斷, 細分化된다. 4.印解初期에 발생된 微細織維는 1, 2次壁이 共存하지만, 印解가 더 진행되면, 1, 2次壁이 分離되었다. The freeness variation, the fine fibers occurrence and type were examined to investigate characteristics of fine fibers produced by beating during TMP(Thermomechanical Pulp) and KP(Kraft Pulp)processes. According to increased the beating time, the freeness and the fine fibers occurrence were gradually increased, and TMP showed higher freeness and occurrence than KP due to the difference on fiber softness. In addition, the fine fibers produced by beating were generally cut parenchyma cell and microfibrils of secondary wall. The kindness of fine fibers produced by TMP and KP processes were similar, but the types were different. At initial stage of besting, the primary and secondary walls of fine were coexisted. but as the beating was more processed, those primary and secondary walls were separated each other.

Polychlorinated Biphenyl 毒性에 미치는 人蔘 및 Riboflavin tetrabutylate의 影響

尹泰圭,洪思澳,趙台淳 成均館大學校 科學技術硏究所 1983 論文集 Vol.34 No.1

The effects of ginseng extract, riboflavin tetrabutylate(B_2-but.) and vitamin E on toxicity of polychlorinated biphenyls(PCB) were examined in rabbits. Serum total lipid and TBA value were markedly increased by PCB administration in the experimental animals. However, the administration of Ginseng extract or B_2-but. significantly inhibited the elevation of serum total lipid as well as TBA value. The activity of δ-aminolevulinic acid dehydrase in red blood cells was also significantly stimulated by PCB and this stimulation was inhibited by the administration of Ginseng extract. Furthermore, the elevations of the activities of serum GOT and GPT by PCB were also prevented by the administration of Ginseng extract and B_2-but.

펄프 고해과정중 발생되는 미세섬유의 구조(II) : 활엽수 펄프 Hardwood pulp

윤승락,김재경,김사익,조종수,노정관 진주산업대학교 2000 산업과학기술연구소보 Vol.- No.7

Freeness occurrence and types of deciduous fine fibers depending on beating time were examined to evaluate morphological characteristics of fine fibers produced by beating of Kraft pulp(KP) processes. The results were as foltows; As the beating time was increased, freeness and occurrence of fine fibers were gradually increased. The fibrillation of fiber was started at 20 minutes(22˚ SR) after beating, and the cell wall was destroyed or cut after 70 minutes(67˚ SR). Fine fibers produced during beating were composed of microfibrils from wood fibers, fragments caused by vessel destruction, and parenchyma cells. At initial stage of beating, the primary and secondary walls of fine fibers were coexisted, but as the beating was more processed, fine fibers which were composed of secondary wall were increased, indicating of destruction of secondary cell wall. The morphological change of parenchyma cell was not occurred by beating.

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.

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.

요양병원 입원환자 평가도구의 타당도와 신뢰도

이지윤,윤주영,장사랑 노인간호학회 2008 노인간호학회지 Vol.10 No.1

Purpose: The purpose of this study was to evaluate the validity and reliability of a patient assessment instrument for patients in long-term care hospitals. Method: The participants in this study were 90 patients admitted to 3 long-term care hospitals. The data were collected in May and June 2007. Criterion related validity of the K-ADL (Korean Activities of Daily Living) was tested using Spearman correlation with the K-MBI (Korean Modified Barthel Index). Inter-rater reliability between two nurses was tested using weighted kappa and agreement percentage. Results: Criterion related validity of the K-ADL with the K-MBI was good with average Spearman correlation coefficient =0.96. Correlation coefficients of items were between 0.63 and 0.96. Inter-rater reliability was satisfactory with the average weighted kappa equal to 0.76. Items with weighted kappa of more than 0.4 numbered 122 (86.5%) and of more than 0.75, 74 (52.5%) Conclusion: The patient assessment instrument for patients in long-term care hospitals is reliable and K-ADL is valid for classifying these patients based on resource utilization, and for quality monitoring indicators.

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.