天然染料에 관한 硏究(4) : 양파 외피색소에 의한 견섬유 염색 Dyeing of Silk Fibers by Color of Onion Coats

趙慶來 新羅大學校 1992 論文集 Vol.33 No.1

Optical behaviors and dyeing properties of color solution extracted from coats of onion were investigated. The wavelength of maximum absorption of the color solution appeared at 280 and 327nm, respectively. The amount of colors extracted was increased with extracting temperature and time. Absorbance of color solution was increased relative to weight of onion coats. Resistance property of color solution for photodeg-radation was increased with increasing concentration of color solution. UV, Visible Spectrum of color solution was shifted to longer wavelength by mixed with alum, and shifted to shorter wavelength by mixed with copper sulfate. Degree of exhaustion on the silk fabrics was related to the temperature and pH of dyebath. Surface color of dyed fabrics were variously according to modant used. Perspiration resistance and light fastness of dyed silk fabrics were within commercially acceptable limits.

소아 백혈병의 혈청 철, 총 철결합능 Transferrin포화율 및 Ferritin치에 관한 연구

문경래,정은경,박상기 朝鮮大學校 附設 醫學硏究所 1991 The Medical Journal of Chosun University Vol.16 No.1

Author reviewed the clinical symtoms, hematological findings and serum Fe, total iron binding capadty(TIBC), transferrin saturation and levels of 40 children diagnosed as leukemia at the pediatric department of Chosun University hospital during a period of 7 years from Jan. 1983 to Dec. 1989. Also, 20 normal children as control group were studied. The results were summarized as follows: 1) The Mean±S.D. levels of the serum Fe, TIBC, transferrin saturation and ferrtin of leukemia 40 cases and control group were 126.8±37.8㎍/㎗, 276.1±37.8㎍/㎗, 47.1±15.6%, 244.5±52.7ng/㎖ and 107.2±34.2㎍/㎗, 309.9±31.8㎍/㎗, 34.7±11.4%, 69.6±30.8ng/㎖, respectively. The difference of the serum Fe levels between leukemia and normal control was statistically not significant (P>0.1) but the serum Fe, TIBC, transferrrin saturation and ferritin levels were significantly different(P<0.05, P<0.01, P<0.001). 2) The differences in the mean levels of the serum Fe, TIBC, transferrin saturation and ferfitin among the types of leukemia were not significant. 3) The differences of the serum TIBC, transferrin saturation and ferritin levels between leukemia and normal control were statistically significant. From the very high serum ferritin levels, it is thought that serum ferritinemia as tumor marker may be useful in diagnosis of leukemia.

유한요소법을 이용한 레일의 헤드에 존재하는 균열의 응력확대계수에 관한 연구

인경환,성기득,김종욱,조명래,양원호 成均館大學校 科學技術硏究所 1999 論文集 Vol.50 No.1

In recent years, the rolling stock is being increasingly developed. However, higher axle loads have increased the incidence of fatigue defects in railroad rails. Many of these fatigue-initiated defects develop in the head of the rail. The head defects are very important because they are generally not visible until they reach quite large size and they can lead to catastrophic rail fractures. In this paper, stress intensity factors(SIF) of a embedded crack in the head of the rail were analysed along the wheel positions relative to the crack plane and along the running condition using the finite element method.

국내산 식물성 식품중 식이섬유 함량의 분석

이경숙,이서래 이화여자대학교 생명과학연구소 1993 생명과학연구논문집 Vol.4 No.-

국내산 식물성 식품중 식이섬유의 급원 54가지 시료에 대하여 섬유질 함량을 AOAC법에 의해 분석하였다. 신선물 기준시 식이섬유 및 조섬유 함량은 각각 곡류 1.19~10.35%, 0.19~1.28%, 감자류 1.12~1.81%, 0.29~0.64%, 두류 2.05~18.14%, 0.38~11.05%, 신선채소류 0.99~7.42%, 0.35~2.61%, 가공채소류 2.28~41.14%, 0.97%~20.96%, 과일류 0.19~2.91%, 0.10~0.79%, 견과종실류 4.27%~10.83%, 0.96%~4.62%, 버섯류 1.62~3.94%, 0.79%~0.89%, 해조류 28.70~38.19%, 2.17%~6.41%, 조미료류 4.65%~6.67%, 2.49%~3.44%였다. 식이섬유/조섬유 비율은 2~13으로서 식품 종류간의 차이가 크게 나타나, 대개 식품에 대한 식이섬유 함량의 분석을 필요로 한다. Total dietary fiber and crube fiber contents were analyzed for 54 different kinds of Korean vegetable foods by AOAC method. On the fresh matter basis, total dietary fiber and crube fiber contents of tested food samples ranged from 1.19~10.35%, 0.19~1.28% in cereals, 1.12~1.81%, 0.29~0.64% in potatoes, 2.05~18.14%, 0.38~4.42% in pulses, 0.99~7.42%, 0.35~2.61% in fresh vegetables, 2.28~41.14%, 0.97%~20.96% in processed begetables, 0.19~2.91%, 0.10~0.79% in fruits, 4.27%~10.83%, 0.96%~4.62% in nuts and seeds, 1.62%~3.94%, 0.79%~0.89% in mushrooms, 28.70%~38.19%, 2.17%~6.41% in seaweeds, and 4.65%~6.67%, 2.49%~3.44% in seasonings, respectively. The ratio of total dietary fiber/crude fiber contents ranged from 2 to 13, showing a wide variation among food commodities, necessitating the analysis of total dietary fiber content for individual food items.

폐광산 주변의 목본 식생 현황 및 오염 토양에 대한 목본 종자의 발아 특성

서경원,손요환,김래현,구진우,노남진,경지현,김정규 한국환경농학회 2006 한국환경농학회지 Vol.25 No.1

당뇨병 환자에서 혈장 Thrombin-Antithrombin Ⅲ 및 Plasmin-α_2-Plasmin Inhibitor 복합체의 임상적 의의

김경욱,김은숙,정상수,윤수지,박우일,이준희,남수연,안철우,문병수,김경래,차봉수,송영득,임승길,이현철,허갑범 대한당뇨병학회 2002 Diabetes and Metabolism Journal Vol.25 No.5

연구배경:당뇨병 환자에서 혈액응고 및 섬유소용해 체계의 이상경향이 있어 그 결과로 여러 혈관합병증의 발생위험이 높다는 사실은 널리 알려져 있다. 그 기전은 아직 확실히 밝혀지지 않았으나, 고혈당으로 인한 혈장 단백질들의 비효소성 당화작용이나 산화성 스트레스로 인한 유리 라티칼 작용으로 응고항진이나 섬유소용해 활성의 저하를 유발하는 것으로 생각되고 있다. 최근 응고 및 용해인자와 그 억제자의 복합체들의 증가가 이 상태를 비교적 예민하게 반영한다고 알려져 있다. 방법:본 연구에서는 당뇨병 환자 101명과 정상 대조군 20명에서 혈장내 thrombin­antithrombin complex(TAT)와 plasmin­α₂­plasmin inhibitor complex(PIC)를 측정하여 비교하고, 당뇨병 환자에서 미세혈관 합병증과 대혈관합병증의 유무에 따른 차이와, 이미 혈관 질환의 위험인자로 알려져 있는 인자들간의 상관성을 알아보고자 하였다. 결과:1. 환자의 분포를 살펴보면 혈관합병증이 있는 군은 85명, 혈관합병증이 없는 군은 16명이었고, 평균연령은 각각 57.9±14.1세, 49.9±16.6세로 혈관 합병증이 있는 군에서 더 나이가 많았고, 체질량지수는 23.2±3.4㎏/㎡, 24.1±3.4㎏/㎡로 두 군간 유의한 차이는 없었다. 또 두 군간의 혈압 및 HbA1c, 공복혈당 및 인슐린과 C­peptide, 총 콜레스테롤, 중성지방, HDL­콜레스테롤, Lp⒜는 유의한 차이가 없었고, 미세혈관합병증이 있는 군에서 당뇨병의 유병기간이 길었다. 2. TAT 및 PIC의 농도는 정상 대조군에서는 2.8±1.2 ng/mL, 240.4±69.7 ng/mL이었고, 당뇨병 환자군에서는 9.5±22.6 ng/mL, 472.2±258.7 ng/mL이었다. TAT와 PIC 모두 당뇨병 환자군에서 정상 대조군에 비해 유의하게 증가되어 있었고(p<0.001), TAT/PIC ratio는 두 군간 차이가 없었다. 3. 당뇨병 환자의 혈관합병증에 따른 TAT 및 PIC, fibrinogen 농도는 합병증이 없는 군은 각각 4.1±2.4ng/mL, 362.2±272.0ng/mL, 322.7±102.4mg/mL으로 PIC와 fibrinogen의 증가를 보였으나, 연령을 보정한 후에는 통계학적 유의성은 없었다. 또 대혈관 합병증군에서는 각각 6.0±4.9 ng/mL, 507.4±321.6 ng/mL, 427.1±194.7 mg/dL이었으며 미세·대혈관 합병증군에서는 10.4±6.4 ng/mL, 484.8±269.7 ng/mL, 388.4±132.4 mg/dL으로 TAT의 증가를 보였으나 역시 연령을 보정한 후에는 통계학적 유의성은 없었다. 4. 미세혈관합병증군에서 HbA1c(>8%)가 높은 군의 PIC 농도가 유의하게 높았고(p=0.049), 대혈관합병증군에서 HbA1c(>8%)가 높은 군의 총 콜레스테롤 농도가 유의하게 높았다(p=0.042). 5. 총 당뇨병 환자군에서 PIC는 fibrinogen과 HbA1c와 양의 상관관계를, BMI와 음의 상관관계를 보였으며(r=0.47, 0.31,-0.25), 혈관 합병증이 없는 당뇨병 환자군에서만 TAT는 HbA1c와 양의 상관관계를 보였다(r=0.67). 결론:이상의 결과에서 혈장 TAT 및 PIC 농도는 당뇨병 환자에서 정상 대조군에 비해 의미있게 증가되어 있었고, 당뇨병 환자군에서는 연령의 증가와 유병기간이 혈액응고항진 및 용해의 장애에 큰 역할을 함을 알 수 있었으며, 총 당뇨병 환자군에 PIC와 HbA1c와 양의 상관관계를, BMI와 음의 상관관계를 보였으며 혈관 합병증이 없는 당뇨병 환자군에서만 TAT는 HbA1c와 양의 상관관계를 보였다. 따라서 당뇨병 환자에서 혈액응고 및 용해의 장애가 동반되어 있다고 볼 수 있으며, 혈장 TAT 및 PIC는 혈관합병증으로의 진행을 예측하는 지표로서 유용하리라 생각된다. 또 혈당조절정도와 상관성이 있으므로 혈당조절후에 추적검사를 시행하여 합병증의 예방이 가능한지 추후 연구가 필요하리라 생각된다. Background : Abnormality of coagulation and fibrinolystic system is known as a predisposing factor of vascular complication in diabetes. Although the pathogenesis is not well known, non-enzymatic glycation reaction and the increase in production of free radicals due to an increased oxidative stress may be linked to the hypercoagulibility and hypofibrinolytic activity. As indices of abnormality in coagulation and firinolysis in peripheral blood, plasma thrombin-antithrombin Ⅲ complex (TAT) and plasmin-α_2-plasmin inhibitor complex (PIC) were measured. The purpose of this study was to clarify whether hypercoagulability exists in diabetic patients with or without vascular complication. Methods : In our study, we measured plasma thrombin-antithrombin Ⅲ compelx (TAT) and plasmin-α_2-plasmin inhibit or complex (PIC) in 101 diabetic subjects and 20 controls. Comparing TAT and PIC levels in diabetic microvascular complication group, diabetic macrovascular complication group and controls, we examined correlation between risk factors associated with diabetic vascular complication. Results : 1. The group with diabetic vascular complication was older than group without complication. There was no significant difference in BMI, blood pressure, HbA_ic, blood sugar level, insulin, C-peptide, serum creatinine, total cholesterol, triglyceride, HDL-cholesterol, Lp (a) between two groups. The group with diabetic microvascular complication had longer duration of diabetes. 2. Concentration of TAT and PIC were 2.8±1.2 ng/ mL, 240.4±69.7 ng/ mL in controls and 9.5±22.6 ng/ mL, 472.2±258.7 ng/ mL in diabetic patients, respectively. TAT and PIC were significantly higher in diabetic patients than in control (p<0.001). But TAT/PIC ratio was no significant difference between two groups. 3. In diabetic patients, concentration of TAT and PIC and fibrinogen were respectively 4.1±2.4 ng/ mL, 362.2±272.0 ng/ mL, 322.7±102.4 mg/ dL in group without vascular complication and 5.3±4.1 ng/ mL, 529.5±258.7 ng/ mL, 374.9±106.2 mg/ dL in group with microvascular complication, which group had increase in PIC and Fibrinogen but no significance after correction of age. Concentration of TAT and PIC and Fibrinogen were 60.±4.9 ng/ mL, 507.4±321.6 ng/ mL, 427.1±194.7 mg/ dL in macrovascular complication, and 10.4±6.7 mg/ mL, 484.8±269.7 ng/ mL, 388.4±132.4 mg/ dL in combined vascular complication which group showed increase of TAT but also had no significant increase after correction of age. 4. In diabetic microvascular complication patients, group of high HbA_1c (>8%) (p=0.049) had significant high PIC concentration. In diabetic macrovascular complication patients, group of high HbA_1c (>8%) (p=0.042) had significant high total cholesterol concentration. 5. In all diabetic patients, PIC was positively correlated with fibrinogen and HbA_1c and negatively correlated BMI (r=0.47, 0.31, -0.25). Only in daibetic patients without angiopathy, TAT was positively correlated with HbA_1c (r=0.67). Conclusion : In this study, plasma TAT and PIC concentration significantly increased in diabetic patients compared with controls, and PIC was increased in group with microvascular complication, TAT were increased in group with combined micro macrovascular complication. However, there was no significance relationship existed when correctinf for age. PIC was correlated with HbA_1c. TAT was correlated with HbA_1c only in the group without angiopathy. Abnormality of coagulation and fibrinolysis were combined in diabetes, plasma TAT and PIC can be used as an index of vascular complication. Also we found the correlation with the degree of the blood glucose control. Therefore we need follow up study for the possibility of prevention of vascular complication after controlling the blood glucose to age-matched patients (J Kor Diaabetes Asso 25:354~363, 2001).

남성들의 흡연과 성만족도에 관한 연구

신성례,장성옥,서경현 성인간호학회 2003 성인간호학회지 Vol.15 No.4

Purpose: This study aimed to compare differences on sexual satisfaction between non-smokers and smokers of Korean adult males. Method: The subjects of this study were 304 current smokers and 331 current non-smokers(stop smokers, never smokers) (58.0%). Because of the nature of the study, the participants were recruited through a home page advertisement of a brand newspaper company in Korea, and the survey was done through Internet system. The tool t o measure participant's sexual satisfaction was adopted from the Arizona Sexual Experience Scale-Male. Result: Participant's age ranged from 20 to 49, mostly in their 30s-40s(96.1%). They were smoking average of 15 cigarettes per day. There were no significant difference on sexual satisfaction between current smokers and non-smokers(t=-.55, p>.05). However. there were significant difference on sexual satisfaction between ever smokers(n=481) and never smokers(n=154) (t=2.10. p<.05). There were significant differences an erectile and orgasm satisfaction according t o number of cigarettes they smoked per day. 54.5% smokers who said that they have difficulty in keeping erectile state considered on smoking cessation within 30 days whereas 24.2% in those who said that keeping erectile state was easy. Conclusion: Informing about the high risk of sexual dysfunction with cigarette smoking should become a important part of smoking cessation education and for smoking adolescents.

열가소성 복합재료의 굽힘특성에 관한 연구

李德來,任珍模,崔境恩 全北大學校 1995 論文集 Vol.40 No.-

Thermoplastic composites have great advantages over thermoset composites in productivity and properties. However, thermoplastic composites have not been used so widely because of difficulty in impregnation of their materials. In this study, the unidirectional composites were fabricated under different holding times by using commingled yarn(CY) and uncommingled yarn(UY). we investigated 0° and 90° bending strength and DSC analysis of thermoplastic composites which consisted Polypropylene(pp), Nylon6(Ny6) and Polyethylene telephtalate(PET) as the matrixs fiber and glass fiber as the reinforecement respectively.

고립골낭에 관한 X선학적 연구

김경락,황의환,이상래 慶熙大學校 齒科大學 1994 慶熙齒大論文集 Vol.16 No.1

The aim of this study was to evaluate the clinical, radiographic and histopathologic features of 23 cases of solitary ?.cone cyst by means of the analysis of radiographs and biopsy specimens in 23 persons visited the Department of Oral and Maxillofacial Radiology, School of Dentistry, Kyung Hee University and Chunbuk National University The obtained results were as follows 1. The incidence of solitary bone cyst was almost equal in males(52.2%) and in females(47.8%) and the prevalent age of the solitary bone cyst were the second decade(47.8%) and the third decade (21.7%). 2 In the signs and symptoms of solitary bone cyst, pain or tenderness revealed in 17`.4%, swelling revealed in 13.0%, pain and swelling revealed in 21.7%, paresthesia revealed in 4.4% and 435% were asymptom and the tooth vitality involved in the solitary bone cyst, 76.5% were positive and 23.5% were either positive or negative. 3. In the location of the solitary bone cyst, 47.8% present posterior region, 21.7% present anterior region, 21.6% present anterior and posterior region, 4.4% present condylar process area. 4. In the hyperostotic border of the solitary bone cyst, 47.8% were seen entirely, 21.8% were seen partialy, and 30.4% were not aeon. 5. In the change of tooth, 59.1% were intact, 18.2% were loss of the alveolar lamina dura, 13.6% were root resorption 4:55% were tooth displacement, 4.55% were root resorption and tooth displacement. 6. In the change of cortical bone of the solitary bone cyst, 39.1% were intact and 60.9% were thinning and expansion of cortical bone. 7. In the histopathologic findings of 9 cases, 33.3% were thin connective tissue wall, 11;1% were thickened myxofibromatous wall, 55.6% were thickened myxofibromatous wall with dysplastic bone formation.

도시지역 초등학생에서 주의력결핍 과잉운동장애의 유병율

표경식,박상학,김상훈,조용래,김학렬,문경래 조선대학교 2001 The Medical Journal of Chosun University Vol.26 No.2

Background and Objectives : To study the prevalence of ADHD in urban elementary school children using the Korean version of the disruptive behavior disorders parent rating scale. Materials and methods : 6,372 students from seven urban elementary schools were targeted using the parent rating scale. Results : (1)The total ADHD prevalence was 6.1%. It can be broken down as follows: 4.1% was the Inattentive type, 1.0% was the Hyperactive-impulsive type and 1.1% was the Combined type. 8.3% occurred in male students and 3.9% occurred in female students. The prevalence in boys was significantly higher. (2) The prevalence of Conduct Disorder(CD) was 0.3%: 0.2% for male students and 0.3% for female students. There was no significant difference between girls and boys. (3) The prevalence of Oppositional Defiant Disorder(ODD) was 4.4%: 5.0% for boys and 3.9% for girls. The value for boys was significantly higher. (4) A statistically significant difference between grades was found with ADHD, but no significant difference between grades was found with CD and ODD. (5) In the results of the comorbidity research, ADHD accompanied by CD was 2.3%. ADHD accompanied by ODD was 25.5%. ADHD accompanied by both CD and ODD was 4.1%. (6) Mild forms of ADHD, CD and ODD were found four times more often than that observed in typical cases. Conclusion : Prevalence of ADHD in urban elementary schools is high and CD or ODD is accompanied more frequently. In the future, the school mental health project should be focused mainly on ADHD. From the beginning of urban elementary schools, ADHD should be screened for. Intervention is required depending on whether or not there are accompanying diseases.