합성섬유에의 Comfort 가공

류효선 ( Hyo Seon Ryu ) 한국의류학회 1982 한국의류학회지 Vol.6 No.1

이 解說文에서는 최근 수년간 개발된 合成纖維에의 Comfort加工 : Polyester섬유의 촉감 改善, 疎水性섬유에 있어서 親水性을 향상시키기 위한 化學的인 처리, 대전방지가공, 오염방지가공, 그리고 柔軟製에 대한 것을 문헌조사를 통해 소개하고 있다.

反應性染料의 反應基에 따른 絹織物染色에 관한 연구

程智寅(Ji-In Jeong),柳孝仙(Hyo-Seon Ryu) 한국염색가공학회 1992 韓國染色加工學會誌 Vol.4 No.4

식이로 유도한 비만마우스에서 아피오스의 내장지방 감소 효과

최라영(Ra-Yeong Choi),이진(Jin Lee),류효선(Hyo-Seon Ryu),함주리(Ju Ri Ham),박석규(Seok-Kyu Park),김명주(Myung-Joo Kim),이미경(Mi-Kyung Lee) 한국식품영양과학회 2017 한국식품영양과학회지 Vol.46 No.9

본 연구는 고지방식이(열량의 40%를 지방으로 공급)로 유도한 비만마우스에게 아피오스 분말(10%, w/w)을 12주간 급여한 후 내장지방 감소 및 지방간 개선 효과를 살펴보았다. 아피오스 분말 급여로 인한 유의적인 체중 감소는 보이지 않았으나, 부고환지방과 후복막지방 무게가 유의적으로 감소하여 총 내장지방 무게는 대조군에 비해 14.3% 감소하였다. 부고환지방조직의 지방세포 크기 역시 아피오스 분말군에서 현저히 감소되었다. 혈청의 유리지방산, 중성지질과 총 콜레스테롤 함량은 실험군 간의 유의적인 차이가 없었으나 총 콜레스테롤에 대한 HDL-콜레스테롤 비와 동맥경화 지수는 아피오스 분말군이 대조군에 비해 각각 18.9%와 47.2% 유의적으로 개선되었다. 혈청의 렙틴 함량은 아피오스 분말군이 대조군에 비해 유의적으로 낮았다. 고지방식이를 급여한 마우스에 아피오스 분말 급여는 간 조직 중의 지질축적 및 유리지방산과 중성지질 함량을 유의적으로 낮추는 것으로 나타났다. 간 조직의 지질합성 관련 유전자인 Pparg, Fasn과 Dgat2의 발현이 아피오스 분말 급여로 억제되었다. 이상의 결과에서 아피오스 분말은 고지방식이로 인한 내장지방 축적과 지방간을 개선할 수 있을 것으로 평가되었다. This study examined the effects of apios (Apios americana Medikus) supplementation on visceral obesity in high-fat diet-induced obese mice. C57BL/6N mice were fed a high-fat diet (40% calories from fat) with or without apios powder (10%, w/w) for 12 weeks. At the end of the experiment, apios supplementation reduced visceral fat mass significantly by 14.3% compared to the control group. Apios decreased significantly the atherogenic index, serum leptin level, hepatic lipid (free fatty acid and triglyceride) content, and lipid droplets, whereas it increased the serum high density lipoprotein-cholesterol/total cholesterol ratio. Hepatic lipogenic gene expression of peroxisome proliferator activated receptor gamma, fatty acid synthase, and diacylglycerol O-acyltransferase 2 was down-regulated by apios supplementation. These results suggest that apios is a healthy food for preventing high-fat diet-induced visceral obesity and fatty liver.

사례연구 ; 모바일 병원정보시스템 사용성에 대한 실증연구

안명진 ( Myong Jin Ahn ),양준영 ( Joon Young Yang ),류효선 ( Hyo Seon Ryu ),박찬석 ( Chan Seok Park ) 한국병원경영학회 2013 병원경영학회지 Vol.18 No.4

This study is a proposal of quality scale and measurement for the Mobile Hospital Information System Usability used to the Chungnam National University Hospital in Daejeon Korea. This study is to provide decision- making guideline for hospital managers and to provide feedback for the users`information needs in Mobile Hospital Information System. The target people of the study were medical doctors in Chungnam National University Hospital. The service contexts of usability were request of medical Care, Vital sign check of Patient, Care Agreement of Patient, Blood management, Check of care state, Sign of choice doctors, Query of doctor order and patient measurement result. The Usability factors were the efficiency, effectiveness and satisfaction of quality model ISO9241-11. This study shows that the Mobile HIS is used for the communication and education between doctor and patients. Especially, The Care Agreement of Patient is a part of the most utilized in the Mobile HIS.

탈지 갈색거저리 유충의 발효추출물이 사염화탄소를 투여한 마우스의 간손상에 미치는 영향

최라영(Ra-Yeong Choi),함주리(Ju Ri Ham),류효선(Hyo-Seon Ryu),박경욱(Kyung-Wuk Park),강경윤(Kyung-Yun Kang),이미경(Mi-Kyung Lee) 한국식품영양과학회 2019 한국식품영양과학회지 Vol.48 No.5

본 연구는 탈지 갈색거저리 유충의 발효추출물이 사염화탄소로 급성 간손상을 유발한 마우스의 혈액, 조직학적 변화 및 항산화 효소 활성에 미치는 영향을 살펴보았다. 발효추출물(500 ㎎/㎏/d), 비발효추출물(500 ㎎/㎏/d) 및 양성물질인 실리마린(200 ㎎/㎏/d)을 3일 동안 일정한 시간에 1회 경구 투여하고 3일째 실험물질 투여 4시간 후 사염화탄소와 올리브 오일을 1:3(v/v)으로 혼합하여 체중 kg당 2 mL씩 복강 내 1회 주사하여 급성 간손상을 유발하였으며, 정상군은 동일한 용량의 올리브오일을 복강 투여하였다. 간독성지표인 혈청 ALT 활성은 유의적이지는 않으나, 발효추출물군에서 대조군과 비발효추출물군보다 각각 27%와 25% 감소하는 경향을 보였다. 사염화탄소로 인해 혈청 TNF-α와 IL-6 함량이 정상군보다 각각 약 32.5배와 98.7배로 급격히 증가하였으나, 발효추출물군과 실리마린군은 대조군보다 IL-6 함량을 51%와 25% 유의적으로 감소하였다. 간조직의 H&E 염색 결과, 대조군은 정상군보다 중심정맥 주위에 집중된 괴사와 변성이 관찰되었으나 발효추출물, 비발효추출물, 실리마린 급여로 병변 부위가 다소 감소하였다. 혈청 중의 유리지방산은 정상군보다 대조군에서 유의적으로 2배가 증가했지만, 발효추출물군, 비발효추출물군과 실리마린군은 대조군보다 유리지방산 함량을 유의적으로 낮추었다. 중성지질 함량 역시 유의적이지는 않으나 사염화탄소로 증가하였으며, 실험물질들은 정상군과 유사한 수치를 나타내었다. 간조직의 중성지질 함량은 사염화탄소 투여로 높아졌지만 콜레스테롤 함량은 낮았으며, 발효추출물군의 간조직 중성지질 함량은 대조군보다 감소하는 경향이었다. 발효추출물, 비발효추출물 및 실리마린은 사염화탄소로 감소한 SOD활성을 정상군보다 높였으며, 발효추출물은 사염화탄소 대조군보다 GSH-Px와 GST 활성을 증가시켰다. 이처럼 탈지갈색거저리 유충의 발효추출물은 사염화탄소로 인해 낮아진 SOD, GSH-Px 및 GST 항산화 효소를 활성화하는 것으로 나타났다. 따라서 탈지 갈색거저리 유충의 발효추출물은 비발효추출물보다 사염화탄소로 인한 급성 간손상에 긍정적인 영향을 미치는 것으로 나타났다. This study investigated the effects of defatted Tenebrio molitor larva ferment extract (MWF) on CCl₄-induced acute hepatotoxicity in mice. The ferment extract (500 ㎎/㎏/d), non-ferment extract (500 ㎎/㎏/d), and silymarin (positive control, 200 ㎎/㎏/d) were orally administrated to mice for 3 days; then, CCl4 (2 mL/㎏, 25% v/v in olive oil) was intraperitoneally injected on the third day. After 24 h of CCl4 injection, the mice were sacrificed to collect sera and liver tissue. CCl4 treatment caused an increase in the serum AST, ALT, IL-6, TNF-α, total bilirubin, and free fatty acid levels, and a decrease in the total cholesterol and HDL-cholesterol levels compared to the normal group. However, MWF significantly lowered the levels of serum IL-6 and free fatty acid, and tended to lower the ALT level compared to the control group. Histological analysis revealed that MWF attenuated liver injury caused by CCl₄. Hepatic SOD activity was decreased in the control group compared with the normal group; however, MWF significantly reversed. Moreover, MWF significantly elevated hepatic GSH-Px and GST activities compared to the control group. This study demonstrated that MWF has antioxidative effects against CCl₄-induced liver damage.

모직물의 접착심지 접착에 의한 물성 변화

柳孝仙,池周爰 한국의류학회 1995 한국의류학회지 Vol.19 No.4

This paper described the changes of mechanical KES values after fusing 4 different (in weave & density) wool face fabrics with 3 different (in weave & extensibility) fusible interlinings. The fusing condition was 150℃, 4kg. f/㎠. The results of the study were as follows: (1) After fusing, KES mechanical value of B, 2HB, G, 2HG5, WC increased, where as LT, WT werent't changed so much and EM, RT decreased. It means after fusing extensibilty and recovery property were decreased and volume and stiffness were increased. (2) Within the limits of this investigation, tensile property seemed to be more influenced by the characteristics of face fabrics, and bending property did by the effect of adhesive penetration and shear and compression property did by complex of the characteristics of face fabrics and interlinings and the effect of adhesive penetration.

폴리에스테르 부분배향사의 용매처리에 따른 내부구조 및 인장성질의 변화

류효선,신혜원 한국의류학회 1993 한국의류학회지 Vol.17 No.1

Partially oriented polyester yarn (PET POY) was treated in the unrestrained state using various solvents at different temperatures. Interactions between PET POY & solvents were estimated by the changes of microstructure, morphology and mechanical properties. The correlation between the changes of microstructure & morphology and the changes of mechanical properties was also studied. TCE. Dioxane, O-DCB, DMF, and BA were found to be active solvents, while Iso-AA and water were found to be weak solvents. PET POY was affected mainly by the solvents when treated with active solvents and affected mainly by heat when treated with weak solvents. Changes by the solvent treatment in microstructure and morphology were : an increase in crystallinity, a change in birefringence, a shrinkage in length, and a change in DSC curve. As for the changes in mechanical properties, findings in the PET POY when treated with solvents were : a decrease in stress-at-break, a change in yield stress, an increase in strain-at-break & yield strain, and a decrease in initial modulus. Changes in microstructure and morphology directly affected the mechanical properties.

폴리에스테르직물의 수산화나트륨 처리시 아민과 CTAB 의 첨가효과

柳孝仙,이정순 한국의류학회 1992 한국의류학회지 Vol.16 No.3

The objectives of this study were 1) to investigate the clothing needs of physically handicapped children, 2) to present the basic data to make the slacks patterns which meet the specific needs of physically handicapped children under study. Questionnaires were administered to 38 mothers of handicapped children and the subjects for the wear test were five handicapped children using wheelchair. The fabrics used for slacks wear test were: muslin woven with cotton, stretchable jean woven and double jersey knitted with cotton and polyester fabrics. The results obtained from this study were as follows: 1) The majority of the handicapped children were wearing ready-made-garments and their mothers considered the fabric elasticity first. 2) The slacks wear test indicated that the slacks ease of 8 cm should be added above the natural waist line in the back for the wheelchair bound children. 3) In a sitting posture on the wheelchair, 3-4 cm should be cut below the natural waist line in the front but in a standing posture, 1-2 cm should be cut below the natural waist line in the front. 4) The double jersey (cotton/polyester) slacks was highly estimated of ease and length of slacks in a sitting posture. The stretchable jean (cotton/spandex) slacks was estimated high of appearance but muslin slacks (cotton) was less estimated of ease and appearance of slacks.

음이온계 계면활성제 존재하에서 양모직물의 알칼리 처리에 관한 연구

류효선,이정순 한국의류학회 1987 한국의류학회지 Vol.11 No.2

The purpose of this study is to investigate the influence of addition of sodium dodecyl sulfate(SDS) when wool is treated with sodium hydroxide(NaOH). Physical and chemical changes were examined on wool treated with various conc. of NaOH and SDS simultaneously. The result are as follows. 1. The higher the temperature and the longer the time of NaOH treatment are, the more alkali damage wool get: increase in weight loss and decrease in urea-bisalphite solubility and in tensile strength. But the treatment time reacts less effective than the temperature. 2. When wool is treated with NaOH, at NaOH cone. under 10 exp (-3)M., the addition of SDS alleviates the alkali reaction on wool: increase in cystine contents and in urea-bisulpite solubility, and decrease in degree of swelling. On the other hand, at NaOH conc. over 10 exp (-2)M., the addition of SDS promotes the alkali reaction on the wool. 3. When wool is treated with NaOH, the addition of SDS shows no changes on the tensile strength. On the other hand, at NaOH conc. under 10 exp (-2)M., the addition of SDS shows no changes on the softness of wool, but at the 10 exp (-1)M. NaOH conc. addition of SDS increases the softness of wool. The area shrinkage of wool treated with NaOH and SDS shows less changes than with NaOH only.

Sodium n-Alkylsulfate의 Alkyl group이 鎖長과 洗滌性 : 洗滌溫度 變化를 中心으로 the effects of washing temperature

丁慶明,柳孝仙,金聲連 한국의류학회 1983 한국의류학회지 Vol.7 No.2

There have been two supposition that the decrement of fatty soil removal at high temperature was caused by surfactants and by the structure of fibers and Fabrics. To study the effect of temperature on the removal of fatty soil, the following variables were selected: Sodium n-alkylsulfates having various chain lengths of alkyl groups as surfactants, cotton and cuprammonium rayon as cellulose fibers having different fiber structure, and two types of soil having different melting points. Experiment was carried out with radiotagged soil and detergency was estimated by liquid scintillation counting. The results were as following: the detergency of tripalmitin on cotton was increased with elevating temperature up to 60∼70℃ and decreased above 70℃ regardless of alkyl chain length of sodium n-alkylsulfates. In distilled water without surfactant, the detergency of tripalmitin on cotton was also decreased above 70℃, but the detergency of tripalmitin on cuprammonium rayon was not decreased above 70℃, effects seemed to be caused by fiber structure. Though the melting point of mixture of tripalmitin and dodecane was lower than that of tripalmitin, the optimum and decrement temperature of detergency were not altered. Finally the results of this study were shown that the surfactant and characteristics of soil did not affect on the mode of detergency vs temperature, but the fiber structure.