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김주환,김동갑,도재화,전영호 대전대학교 기초과학연구소 2001 自然科學 Vol.12 No.1
대전대학교 일대 용운동지역은 해발 130m-317m로서 지리적으로는 북위 36° 19′ 30″-36° 21′ 30″, 동경 127° 27′ 30″-127° 28′ 30″에 위치하며, 남쪽으로는 식장산, 북쪽으로는 계족산이 위치한다. 1998년 4월부터 2001년 5월까지 본 지역의 관속식물을 채집 ? 조사한 결과 조사지역내에 분포하는 관속식물은 1문, 2아문, 4강, 35목, 94과, 291속, 431종, 1아종, 73변종, 10품종, 2잡종 등 총 517분류군으로 나타났다. 조사지역내 우리나라 특산식물은 4과, 6속 등 총 6분류군으로 조사지역내 분포하는 517분류군중 약 1.16%에 이르며, Polygonatum lasianthum var, coreanum Nakai, Forsythia koeana Nakai, Syringa dilatata Nakai, Paulownia coreana Uyeki, Sambucus latipinna Nakai, Weigela subsessilis L.H Bailey이다 . 또한 귀화식물은 17과, 38속, 44종, 2변종 등 총 46분류군으로 조사지역내 전체 출현종 517분류군의 8.9%에 달하며, 우리나라 전체 귀화식물종 177분류군의 26%이다. The investigated area including Daejeon Universi쇼 is 130 - 317 meter above the sea level and located at 3” 19’ 30” - 36“21‘ 30” N in latitude, at 127‘ 27’ 30” - 127' 28' 30" E in longitude, and on the northern border of Mt. Shikjangsan and on the southbound of Mt. Gyejoksan, Daejeon. The results of vascular plant collection and their investigation from April in 1998 to May in 2001 are as follows: The vascular plants collected and investigated consist of total 517 taxa; 2 hybrids, 10 forms, 73 varieties, 1 subspecies. 431 species, 291 genera, 94 families, 35 orders, 4 classes, 2 subphyla. In this area the Korean endemic plants are 6 taxa (1.16% among total 517 taxa): Polygonaturn Iasianthum var. coreanum Nakai, Forsythia koreana Nakai, Syringa dilatata Nakai, Paulownia coreana Uyeki, Sambucus latipinna Nakai and Weigela subsessilis L.H. Bailey. Also. the naturalized plants are 46 taxa (8.9% among total 521 taxa and 26% among the total naturalized plants in Korea).
PP/ZrO₂스펀본드 부직포의 웹특성에 대한 방사조건의 영향
전재완,주창환,김동철 忠南大學校 産業技術硏究所 1998 산업기술연구논문집 Vol.13 No.2
Icotactic polypropylene as the polymer matrix and ZrO₂(zirconium dioxide) as the additive were used to prepare PP/ZrO₂mixtures. From three different mixtures, the PP and PP/ZrO₂spunbond nonwovens were produced by suing the modified melt spinning system in our laboratory with different operating conditions, i.e., spinning temperature, auxiliary pressure and polymer throughput. In order to evaluate the effect of processing conditions on the spunbond nonwovens, the tensile properties, density and web weight of the PP and PP/ZrO₂spunbond nonwovens were investigated. The final diameters of PP and PP/ZrO₂fibers were examined to establish the optimum processing condition with respect to web properties. The results obtained in this study are as follows: (i) Final diameters of PP and PP/ZrO₂fibers in the spunbond nonwoven decreased up to about 70% with increasing the spinning temperature from 200℃ to 230℃. (ii) As the auxiliary air pressure increased up to 4kg/㎠, the breaking stress of PP and PP/ZrO₂ spunbond nonwovens increased. (iii) The density of PP and PP/ZrO₂spunbond nonwovens decreased as the throughput increased up to 1.05g/min/hole.
전광우,정재동,최영화 대구대학교 과학기술연구소 1997 科學技術硏究 Vol.4 No.3
The purpose of this study is to propose the pertinent plan for crack through analyzing types, styles, periods, parts and features of crack for national concrete-related pursuers in domestic working site. And this is a basic study on control of crack which is presented to reinforced concrete structure. For these purposes, as we make check-list about each cause of crack and eliminate the cause of crack in first place in job site, we can make an effective method of control the crack as a whole.
폴리메타크릴레이트를 이용한 케토로락 트로메타민 서방성 정제의 제조와 용출평가
전일순,윤재남,이은미,박용근,김동우,이계원,지웅길 충남대학교 약학대학 의약품개발연구소 2003 藥學論文集 Vol.18 No.-
To improve administration of ketolorac tromethamine, we prepared matrix tablets with Eudragit (RS 100 or 30D), diluents (avicel:lactose=l:l or Ca phosphate) and Mg stearate using wet-granulation method. Sustained release matrix tablets using Eudragit® RS 100 7 and 10% decreased dissolution rate at pH 1.2 and 68 Ca. phosphate as diluents showed more decreased dissolution rate than that of avicel:lactose (1:l). Sustained release matrix tablets using Eudragit® RS 30D also showed very effective sustained release of KT.
고교 레슬링선수의 무산소성 파워 및 측정방법의 타당도에 관한 사례 연구
전해섭,윤재량,정동군,이희동,이정근 韓國體育大學校 1995 論文集 Vol.18 No.-
1) Anaerobic power by jump reach test record was not significant difference statistically between Free-style and Grecoroman-style player. 2) Anaerobic power by 50m Allout-running was not significant difference statistically between free-style player and Grecoroman-style player. 3) Anaerobic power by Lewis-nomogram After measure jump reach test record and weight was not significant difference statistically between Free-style player and Grecoroman-style player.. 4) Anaerobic maximal, Anaerobic mean power and total power were not significant difference statistically between Free-style and Grecoroman-style player. 5) Wingate test measurement method can substitution for Anaerobic power measurement method by Lewis-nomogram.
아크릴로니트릴-4비닐피리딘 공중합체의 전기 전도성에 관한 연구
전재완,송해영,김동철,이래연 忠南大學校 産業技術硏究所 1987 산업기술연구논문집 Vol.2 No.2
Conducting Polymer was obtained by the modification of PAN4VP-Cu(Ⅱ) complex with iodine in acetone. The properties such as morphology, IR-spectrum, thermal degradation, catalytic activity, moisture regain, dye adsorption, tensile strength and favorable conditions for preparing the conducting polymer complex were investigated. Electrical conductivity was measured by changing the concentration of cupric salts and reation time. The experimental results are as follows: 1) The pH condition for the formation of PAN4VP complex was in the range from 10 to 11. 2) The morphology of PAN4VP-Cu(Ⅱ) complex and Cu S-PAN4VP was more compact than that of PAN4VP. 3) The catalytic activity of PAN4VP-Cu(Ⅱ) complex in dicomposition of hydrogen peroxide was affected by concentration of CuCl₂and reaction time, and was increased with their rises. 4) Maximum value of electrical condustivity of PAN4VP-Cu(Ⅱ) complex was 5.5×10Ω㎝ When modified with iodine in acetone, and that of CuxS-PAN4VP was 1.2×10Ω㎝ at the 40g/ℓ concentration of cupric sulfate. 5) Moisture regain of Cu S-PAN4VP was decreased by the introducing of Cu S, but dye adsorption was not decreased.
전신성 홍반성 루프스 환자에서 발생한 자가 면역성 간염 1례
김준재,백나나,김현정,전태주,서동대,오태훈,최원충 인제대학교 2008 仁濟醫學 Vol.29 No.-
SLE 환자에서 간 효소 수치의 상승은 여러 가지 원인에 의하여 드물지 않게 관찰될 수 있다. 이 중 자가 면역 기전에 의해 발생되는 질환으로 자가 면역성 간염과 SLE에 동반된 간염이 있으며, 두 가지 질환의 감별은 환자의 예후 및 치료에 중요하다. 따라서 간 조직 검사를 포함한 정확한 진단 기준으로 조기에 진단하여야 하며, 이에 따른 적절한 치료를 통해서 간 부전 및 비가역적 간경변증으로 진행을 방지할 수 있을 것으로 사료된다. Patients with systemic lupus erythematosus (SLE) have a 25-50% chance of developing abnormal liver tests in their lifetime and various causes are related to elevation of liver enzyme, such as hepatic involvement of lupus, hepatotoxic drug, viral infection, autoimmune hepatitis and so on. Discrimination of autoimmune hepatitis from SLE-associated hepatitis is important because complications and therapy are quite different, although both are autoimmune syndromes. Here we are presenting a case of SLE patient with type I autoimmune hepatitis proved with liver biopsy.