가톨릭대학교 연습림의 식생구조

조도순,이지연 가톨릭대학교 자연과학연구소 1998 자연과학논문집 Vol.19 No.-

경기도 양주군 주내면 어둔리에 위치하고 있는 가톨릭대학교 연습림(동경 127°00′, 북위 37°46′)에서 식생의 장기간의 변화를 추적하기 위하여 25개의 10m×20m 영구방형구를 설치하고 자연림과 조림지의 식생 구조를 비교하였다. 조사된 방형구에서 출현한 교목은 모두 33종으로서 이들 중 조림에 많이 사용되어온 외래수종의 비율은 18%로서 매우 높았다. 그리고 1950년대와 1960년대의 대규모 식생 파괴로 인하여 소나무, 산벚나무, 상수리나무, 떡갈나무, 굴참나무, 팥배나무 등의 양수가 많이 출현하였다. 한편 전나무, 서나무 등을 제외하고는 천이후기에 우점하는 음수들을 거의 찾아보기 어려웠다. 이곳의 식생을 자연림, 일본잎갈나무조림지, 리기다소나무조림지, 아까시나무조림지, 잣나무조림지의 5개 군락으로 나누었을 때 이들 중 잣나무조림지와 일본잎갈나무조림지는 최우점종의 중요치가 평균 84% 이상으로 다른 수종이 거의 침입하고 있지 못한 것으로 판단된다. 반면에 리기다소나무조림지와 아까시나무조림지는 최우점종의 중요치가 70% 이하로서 수관이 조밀하지 못하여 임상에 광선이 많이 투입되어 물푸레나무 등으로의 천이가 빨리 이루어질 것으로 예상된다. 한편 자연림에서는 떡갈나무가 우점종이나 신갈나무, 소나무, 서나무, 물박달나무, 팥배나무 등의 피도가 다소 높아 천이가 빨리 진행되고 있는 것으로 나타났다. For monitoring of the long-term vegetation changes, twenty-five 10m×20m permanent quadrats were set up and the vegetation structures of natural forests and plantations were compared in the Catholic University Experimental Forest located in Eodoon-ri, Joonae-myon, Yangju-gun, Kyonggi-do (127˚ 00’ E, 37˚ 46’ N). The number of tree species occurred in the permanent quadrats was 33, and 18% of them were introduced species which have been widely used for afforestation. Shade intolerant species such as Pinus densiflora, Quercus acutissima, Quercus dentata, Quercus variabilis and Sorbus alnifolia frequently occurred because of vegetation destruction in 1950's and 1960's, but trees of late successional shade tolerant species were rare except for a few Abies holophylla and Carpinus laxiflora. Among the 5 stands studied, Pinus koraiensis (Korean pine) plantation and Larix leptolepis (Japanese larch) plantation showed that the mean importance values of the dominant tree species were ≥ 84% indicating that other species are not successful in invading these stands. In contrast, the mean importance values of the dominant species of Pinus rigida (pitch pine) plantation and Robinia pseudoacacia (black locust) plantation were ≤ 70%, and rapid succession to Fraxinus rhynchophylla and other species due to more or less loose canopy structure is expected in these stands. In natural forests, succession to Quercus mongolica and Carpinus laxiflora from Quercus dentata is expected.

춘계단명식물의 생장과 노쇠에 관한 연구

조도순 가톨릭대학교 자연과학연구소 1998 자연과학논문집 Vol.19 No.-

본 연구는 강원도 인제군 기린면 진동리에 소재한 점봉산(128° 27′ E, 38° 02′ N)에서 춘계단명식물의 분포를 조사하고 춘계단명식물의 생장과 노쇠현상에 미치는 환경요인을 분석하기 위하여 실시되었다. 춘계단명식물의 피도는 계곡과 북사면의 숲틈과 비숲틈에 설치된 46개의 1m×1m 방형구에서 조사되었다. 토양의 pH, 유기물 및 무기영양소의 함량은 계곡과 북사면, 숲틈과 비숲틈 사이에서 뚜렷한 차이는 발견되지 않았다. 그러나 식물의 분포는 지형적인 위치와 숲틈의 유무에 크게 좌우되고 있었다. 한계령풀, 홀아비바람꽃과 왜미나리아재비 등 일부의 춘계단명식물은 북사면에만 출현하고 있었고, 계곡에는 하록식물인 애기앉은부채의 피도가 매우 높았다. 춘계단명식물은 같은 지형에서는 숲틈과 비숲틈의 출현종류 차이는 없었으나 후자가 전바적으로 피도가 높은 것으로 나타났다. 영양소가 춘계단명식물의 생장과 노쇠에 미치는 효과를 알아보기 위하여 질소, 인 및 칼륨비료를 처리한 후 1년 뒤 수종 초본식물의 생장을 비교한 결과 조사된 4종 모두에서 시비에 따른 뚜렷한 경향성을 찾아볼 수 없었으며 춘계단명식물의 노쇠현상도 시비에 의하여 늦춰지지는 않았다. 춘계단명식물과 하록식물의 시간에 따른 생장과 노쇠현상을 조사한 결과, 춘계단명식물 중 복수초, 홀아비바람꽃, 꿩의바람꽃, 애기중의무릇 등은 5월 중순 이후 노쇠현상이 뚜렷이 나타났으며, 얼레지는 5월 말경, 그리고 현호색은 6월 이후에 노쇠하기 시작하였다. 이에 비하여 하록식물인 벌깨덩굴, 노루오줌, 검종덩굴, 피나물 등은 5월초에 생장하기 시작하여 6월까지도 계속 생장이 이루어지고 있었다. 초여름이 되면 비숲틈에서는 벌깨덩굴이, 그리고 숲틈에서는 노루오줌이 춘계단명식물의 자리를 대신 차지하게 되었다. This study was carried out at Mt. Jumbong (128° 27’ E, 38° 02’ N) in Kangwon-do Province to investigate the distribution of spring ephemerals, and to analyze the environmental factors affecting the growth and senescence of spring ephemerals. Coverage of spring ephemerals was determined at 46 lm×lm quadrats set up in gaps and nongaps in the valley and on the north-facing slope. Soil pH, organic matter and mineral nutrient content were not significantly different between valley and north-facing slope and between gap and nongap. In contrast, distribution pattern of spring ephemerals was determined by topography and the presence of gap. A few spring ephemerals such as Leontice microrhyncha, Anemone koraiensis and Ranunculus franschetii occurred exclusively on north-facing slope, while the coverage of a summergreen, Symplocarpus nippoincus, was very high in the valley. Spring ephemerals showed higher coverage in gaps than in nongaps at the same topographic position, but the occurrence of species was not different between gaps and nongaps. To see the effects of nutrients on the growth and senescence of spring ephemerals, nitrogen, phosphorus and potassium were applied to soil in April, 1995, but growth of the spring ephemerals in 1996 did not differ and their senescence was not delayed by fertilizer treatment. Adonis amurensis, Anemone koraiensis, Anemone raddeana, and Gagea japonica clearly showed the signs of senescence in mid-May, Erythronium japonicum in late May, and Corydalis turtschaninovii in June. In contrast, summergreens such as Meehania urticifolia, Astilbe chinensis, Clematis fusca and Hylomecon vernale started to grow in early May and showed continuous growth through June. Meehania urticifolia and Astilbe chinensis replaced spring ephemerals in nongaps and gaps, respectively, in early summer.

甲狀腺炎과 Lithium 治療에 의한 甲狀腺機能低下症

鄭道彦,禹鍾仁,李定均,趙普衍,高昌舜,金勇一 大韓神經精神醫學會 1982 신경정신의학 Vol.21 No.2

A case of a female Manic Depressive Illness patient with goitrous hypothyroidism is presented. After ten and half months of lithium maintenance therapy starting during her first psychiatric admission, she was admitted again due to acute recurrent manic episode. On admission, she complained of easy fatigability and cold intolerance, and thyroid gland was palpable and enlarged in moderate degree. Thyroid function test revealed markedly increased TSH and moderately decreased thyroxine levels. TRH stimulation test showed an exaggerated response. Needle biopsy specimen revealed chronic lymphocytic and immune complex thyroiditis. However, antithyroglobulin and antimicrosomal antibodies were negative. In pretreatment thyroid evaluation on her first admission, neither goiter nor thyroid function abnormality was detectable and no signs of underlying thyroid disease or hereditary predisposition to hypothyroidism were present. Within three weeks of discontinuation of lithium, goiter was no more palpable and within five weeks, thyroid function test returned to normal range. The possibility that patients with underlying thyroiditis may be particularly susceptible to a rapid onset of lithium-induced hypothyroidism is discussed.

식물에서 분리된 phenolic compound의 항암활성

이도익,조장현,이민원,홍순각 중앙대학교 약학연구소 1996 약학 논총 Vol.10 No.-

3,4'-dihydroxypropiophenone, a phenylpropanoid, purified from Betula platyphylla var. latifolia was evaluated on the antitumor activity. In vitro, the cytoxicity was determined by 0.4% trypan blue dye exclusion method. And the most sensitivity cell line was L5178Y(ED_50=0.96ug/ml). The ED_50 of 3, 4'-dihydroxypropiophenone against sarcoma-180, L-1210 were 8.77 and 2.69ug/ml respectively. As a result, 3, 4'-dihydroxypropiophenone was considered to show the antitumor activity.

수소손상 검출과 평가기술

원순호,현양기,이종오,조경식,이재도 한국비파괴검사학회 2002 한국비파괴검사학회지 Vol.22 No.1

산업현장에서 수소는 설비를 손상시킬 수 있는 주원인 중의 하나이며, 종종 설비를 파괴시키는 사고를 발생시킨다. 수소손상에 의한 결정립계의 공동 또는 미세균열은 강재의 파괴인성과 강도를 떨어뜨리는 원인이 되고, 따라서 과거 제한적인 방법으로 수소손상을 평가하기 위한 시도가 수행되었다. 본 연구에서는 초음파를 적용하여 수소손상을 검출하고 평가하기 위한 연구를 수행하였다. 미세조직시험에 의해 확인된 시험편을 이용하여 초음파의 속도와 감쇠계수를 구한 결과, 수소손상에 의해서 초음파 속도는 감소하고 감쇠는 현저하게 증가하는 것으로 나타났다. 이러한 결과를 바탕으로 수소손상을 검출하기 위한 신뢰성 있는 평가법을 제시하였다. The presence of hydrogen in industrial plants is a source of damage. Hydrogen attack is one such form of degradation and often causing large tube ruptures that necessitate an immediate shutdown. Hydrogen attack may reduce the fracture toughness as well as the strength of steels. This reduction is caused partially by the presence of cavities and microcracks at the grain boundaries. In the past several techniques have been used with limited results. This paper describes the application of an ultrasonic velocity and attenuation in hydrogen damage. Ultrasonic tests showed a decrease in wave velocity and an increase in attenuation. Such results demonstrate the potential for ultrasonic nondestructive testing to quantify damage. Based on this study, reliable recommendation is suggested to detect hydrogen attack.

점봉산 낙엽활엽수림의 숲틈 동태

박미영,조도순 가톨릭대학교 자연과학연구소 2007 자연과학논문집 Vol.28 No.-

숲틈(forest gap)은 임관층을 이루고 있는 성숙한 교목이 죽거나 큰 가지가 부러질 경우 형성된다. 시간 경과에 따른 숲틈의 동태를 살펴보기 위하여 강원도 인제군에 있는 점봉산에서 5년 동안의 숲틈내의 유목의 출현, 숲틈형성목과 숲틈대체목의 종과 수, 숲틈의 크기, 숲틈의 나이 및 수관의 변화를 조사하였다. 점봉산의 숲틈은 강풍으로 인하여 줄기가 부러져서 형성되는 경우가 가장 많았으며 숲틈형성목은 오래된 숲틈과 새롭게 생겨난 숲틈 모두 신갈나무가 큰 비중을 차지하고 있었고 숲틈대체목으로서는 당단풍이 가장 많았다. 신갈나무, 거제수나무 및 피나무는 숲틈에서의 측면생장속도가 높았으며 반면에 귀롱나무와 꽃개회나무는 측면생장속도가 낮았다. 이러한 숲틈의 열림과 닫힘의 순환은 숲 속의 그늘진 곳에서 자라기 어려운 수목들이 정착할 수 있는 기회를 제공하고 숲의 다양성을 촉진시켜 주고 있다. 이러한 숲틈의 동태에 관한 장기적 연구는 숲의 관리에 많은 도움을 줄 수 있을 것이다. Gap dynamics was studied in an old-growth deciduous hardwood forest of Mt. Jumbong located in Kangwondo Province. Five-year changes in size, age, and species composition of saplings and subcanopy trees of gaps, number and species of gap-makers and replacers, and crown area of gap-bordering canopy trees were monitored. Snap-off was the most frequent form of death of gap-makers in both old and new gaps in Mt. Jumbong. The most frequent gap-maker was Quercus mongolica, while the most frequent replacer was Acer pseudosieboldianum in both old and new gaps. Quercus mongolica, Betula costata and Tilia armurensis showed rapid lateral growth rate in gaps, while prunus padus and Syringa wolfii had the slowest lateral growth rate. The cyclic opening and closing of gaps can provide the opportunity for shade-intolerant trees to establish themselves in forests and increase the species diversity, and thus the long-term study of gap dynamics will be of help in the management of forests.

교육연극을 위한 극본 자료 개발

김재수,최도순,정경미,백혜경,조은주,김선진 光州敎育大學校 初等敎育硏究所 2002 初等敎育硏究 Vol.17 No.-

When teachers are in need of the script of a play during school hours, Teachers could make a drama out of an interesting story. And by doing learning activities that students are also able to replace an interesting story with a drama, Students are able to understand create an original story. For this purposes, this study explains the methods that teachers make a story. And we make a drama out of a story which is korean language textbook for the seventh curriculum (one∼for grade). And we have teachers to use it lesson.

유도 '되치기 본'의 개선 방안에 관한 연구

김의환,김도준,김규수,김관현,김종달,최종삼,조용철,박순진,윤익선,안병근,정 훈,김미정,한성철 龍仁大學校 武道硏究所 1999 武道硏究所誌 Vol.10 No.1

The purpose of this study was to reform practically a Korean Judo's Doechigi-Bon(Forms of Counterattack, judo's Gaeshi no Kata, Judo's Uradori no Kata, Judo's Gonosen no Kata) that was established in 1955 Korea, according to changing of techniques by Judo's modernization, in order to have Judo's carefulness and systematic diffusion. Reform procedure of Judo's Doechigi-Bon was 1st stage, Questionnaire survey 303 judokas, 2nd stage, Technical seminar by judo experts(12 judo professor) 4 times, 3rd stage, wording report for reform, 4rd stage, Discussion and judgement of Teaching and Judgement commission of Korean judo Association(KJA), 5th stage, Public hearing for reform in KJA, 6th stage, Report and decision of board of directors in KJA, 7th stage, public publication of Judo News(No.53) in KJA. Basic principle of reform of Judo's Doechigi-Bon were as table 1. Table 1. Basic principle of reform of Judo's Doechigi-Bon ------------------------------------------------------------------------------- Items Reformed Key Points of Judo's Doechigi-Bon ------------------------------------------------------------------------------- 1. Structure 1) Grand classification : Classified by 3 parts(1,2,3Gyo) 2)Medium classification : Te waza, Goshi waza, Ashi waza devided per each part(Gyo) 3)Sub-classification : Classified five techniques per each part(Gyo) 2. Contents 1) Selected established techniques as possible 2) Considered rationalty and overlapping of counterattack techniques 3. Decision of Conterattack techniques 1) Refered to results of Basic Questionnaire survey 2) Priority to decisions of Judo expert technical seminar -------------------------------------------------------------------------------- Reformed Korean Judo's Doechigi-Bon(Forms of Counterattack techniques-KJA, 1999) are as follows: 1. Gyo; ① Uki otoshi -> Uchi mata ② Harai goshi -> Harai goshi gaeshi ③ O soto gari -> O soto gake ④ Ko uchi gari -> Sasae tsurikomi ashi ⑤ O uchi gari -> Ko soto gari 2. Gyo; ① Ippon seoi nage -> Okuri eri jime ② Tsuri domi goshi -> Uki waza ③ Okuri ashi harai -> Okuri ashi harai ④ Ko soto gari -> Tai otoshi ⑤ Hiza guruma -> Hiza guruma 3. Gyo; ① Kata guruma -> Sumi gaeshi ② Tai otoshi -> Ko soto gari ③ Hane goshi -> Harai tsurikomi ashi ④ Uchi mata -> Tai otoshi ⑤ Tomoe nage -> O uchi gari

LED를 이용한 복합레진의 광조사시, 중합수축의 속도와 양, 미세경도에 관한 연구

박성호,김수선,조용식,이순영,김도현,장용주,문현승,서정원,노병덕 大韓齒科保存學會 2003 Restorative Dentistry & Endodontics Vol.28 No.4

This study evaluated the effectiveness of the light emitting diode(LED) units for composite curing. To compare its effectiveness with conventional quartz tungsten halogen (QTH) light curing unit, the microhardness of 2mm composite, Z250, which had been light cured by the LEDs (Ultralume LED2, FreeLight, Developing product D1) or QTH (XL 3000) were compared on the upper and lower surface. One way ANOVA with Tukey and Paired t-test was used at 95% levels of confidence. In addition, the amount of linear polymerization shrinkage was compared between composites which were light cured by QTH or LEDs using a custom-made linimeter in 10s and 60s of light curing, and the amount of linear polymerization shrinkage was compared by one way ANOVA with Tukey. The amount of polymerization shrinkage at 10s was XL3000 > Ultralume 2, 40, 60 > FreeLight, D1 (P<0.05) The amount of polymerization shrinkage at 60s was XL3000 > Ultralume 2, 60 > Ultralume 2, 40 > FreeLight, D1 (P<0.05) The microhardness on the upper and lower surface was as follows; <본문 참조> It was concluded that the LEDs produced lower polymerization shrinkage in 10s and 60s compared with QTH unit. In addition, the microhardness of samples which had been cured with LEDs was lower on the lower surfaces than the upper surfaces whereas there was no difference in QTH cured samples.

결핵치료제인 시판 리팜피신제제의 생체내 이용율

김종두,안기완,서영환,조경상,김철,김상도,홍순표 朝鮮大學校 附設 醫學硏究所 1992 The Medical Journal of Chosun University Vol.17 No.1

This study was attempted to investigate the dissolution rate and the bioavailability of commercially available rifampicin preparations after oral administration in nine normal volunteers. Cross-over design was used for the analysis. The dissolution test was conducted in artificial gastric juice and artificial intestinal juice using basket method with four rifampicin preparations (A, B, C, and D) which were pharmaceutically equivalent. The results were as follows; The dissolution rate was higher in the order of A>C>B>D in artificial gastric juice, and A>B>C>D in artificial intestinal juice. Area under the blood concentration time curve (AUC) was larger in order of A>C>B>D. Relative bioavailability(%) of rifampicin preparations were 93.6% for B, 97% for C, 84.4% for D preparation compared with standard A preparation. Peak blood concentration (Cmax) was higer in order of A>B>C>D. Peak time (Tmax) was larger in order of D>C>A>B. Absorption rate constant (Ka) was larger in order of B>A>D>C. there was little difference in elimination rate constant and biological half-life. The correlation of the dissolution rate in artificial gastric juice and area under the blood concentration time curve as well as correlation of the dissolution rate in artifical intestinal juice and peak time showed significant linear relationship. From the result of the this experiments, it can be concluded that for the choice of preparations, bioavailability must be performed in man because the bioavailability of rifampicin preparations showed big differences among commercial preparations which were abvertised as pharmaceutically equivalent, and that the bioavailability of rifampicin preparations in man partially could be predicted from the results of dissolution rate.