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박홍수,조경규,오석조,편무실 明知大學校 産業技術硏究所 1993 産業技術硏究所論文集 Vol.12 No.-
To prepare a durable softening water repellent, quaternized stearyl methacrylate-2-diethylami-noethyl methacrylate as a mother resin and quaternized 1-behenoylaminoethyl-2-docosyl imidazo-line which increase the softening effect and the hydrostatic pressure blended with waxes and their emulsifier in various proportions to give water repellent PPSBC. As the results of the measurement of water repellency. washable, tear strength and crease recovery to polyester-cotton(P/C) blended fabrics treated with PPSBC only or addition of textile finishing resin, the physical properties were increased. there was no significant lowering effect in water repellency when PPSBC was treated the antistatic agent by the one-bath method. and the effect of water repellency by the adding the catalyst was studied. PPSBC was confirmed as durable water repellent with the results of making little difference of water repellency as±5 point after and before washing. And, the water repellency mechanism of P/C blended fabrics treated with PPSBC was also discussed in detail.
우영아(Young Ah Woo),조창희(Chang Hee Cho),김효진(Hyo Jin Kim),조정환(Jung Hwan Cho),조경규(Kyung Kye Cho),정승성(Seung Sung Chung),김수정(Soo Jung Kim),김중환(Joong Hwan Kim) 대한약학회 1998 약학회지 Vol.42 No.4
Near infrared reflectance spectroscopy (NIRS) was applied for discrimination according to geographical origin (Korea, China) of herb drugs. Herbal medicine has an important role in clinical therapy in Asian countries such as Korea and China. The objective of this study is to provide a convenient and accurate method to determinate geographical origin (Korea, China) of herbal medicine for quality control whose quality is generally different according to geographical origin. A rapid, nondestructive and accurate discrimination was achieved by NIRS. Second derivative spectra of herb drugs were subjected to discriminant analysis. Herbal medicine drugs such as Cassia Semen, Ganoderma and Smilacis Rhizoma was discriminated accurately according to geographical origin using PLS regression method.
연구보문 : 환경화학 ; 국내 농산물의 카드뮴 및 납 함량 조사 및 위해 평가
김지영 ( Ji Young Kim ),최남근 ( Nam Geun Choi ),류지혁 ( Ji Hyock Yoo ),이지호 ( Ji Ho Lee ),이영구 ( Young Gu Lee ),조경규 ( Kyoung Kyu Jo ),이철호 ( Cheol Ho Lee ),홍수명 ( Su Myeong Hong ),임건재 ( Geon Jae Im ),홍무기 ( Moo K 한국환경농학회 2011 한국환경농학회지 Vol.30 No.3
BACKGROUND: This study was conducted to investigate the agricultural product (Pulses, Lettuces, Pumpkins, Apples, Pears and Tangerines) in Korea, monitoring of cadmium (Cd) and lead (Pb) contaminations of agricultural products in cultivated areas and abandoned mine areas were investigated, and risk assessment was performed through dietary intake of agricultural products. METHODS AND RESULTS: The average contents of Cd and Pb ranged from 0.001 to 0.018 mg/kg and from 0.007 to 0.032 mg/kg respectively. The result was showed that contents of Cd and Pb did not exceed maximum residual levels established by CODEX except pumpkins and apples. The average daily intake were in the range of 1.06 × 10-3 to 4.76 × 10-2 μg/kg b.w./day at the mean and 95th percentile for Cd, 4.53 × 10-3 to 8.35 × 10-2 μg/kg b.w./day at the mean and 95th percentile for Pb for general population, based on the Korean public nutrition report 2008. The Hazard Index (HI) from the ratio analysis between daily exposure and safety level values was smaller than 1.0. CONCLUSION(s): This results demonstrated that human exposure to Cd and Pb through dietary intake of agricultural produces from abandoned mine areas might not cause adverse effect exceeding to those from non-contaminated areas.