전남 가거도의 식물상

윤경원 ( Kyeong Won Yun ),황용 ( Yong Hwang ),소순구 ( Soon Ku So ),김무열 ( Mu Yeol Kim ) 한국환경생태학회 2012 한국환경생태학회지 Vol.26 No.2

가거도는 전남 신안군 흑산면에 속하는 한국의 최서남단에 위치한 섬이다. 가거도의 관속식물은 93과 246속 289종7아종 36변종 9품종으로 총 341분류군으로 조사되었다. 열매가 노란색인 참식나무의 새로운 품종이 발견되어 노랑참식나무 Neolitsea sericea (Bl.) Koidz. for. koreana M. Kim 라고 명명하였다. 가거도의 특산식물은 흑산도비비추, 처진물봉선, 새끼노루귀, 개족도리풀 등 8종이 발견되었으며, 희귀 및 멸종위기식물은 박달목서와 으름난초 등 3종이 발견되었다. 식물지리학적으로 흥미있는 종은 푸른가막살, 가거꼬리고사리, 가거애기닥나무 등 9종이다. 귀화식물은 11종이며 귀화율은 3.2%이다. Vascular plants of Island Gageo in Jellonamdo were investigated 10 times from August, 2005 to August, 2011. In the result of survey, the flora of this island consists of 341 taxa totally; 93 families, 246 genera, 289 species, 7 subspecies, 36 varieties and 9 forms. Yellow-fruit bearing plants of Neolitsea sericea which were found in this island are newly named as Neolitsea sericea (Bl.) Koidz. for. koreana M. Kim. There were 8 Korean endemic plants such as Hosta yingeri, Impatiens furcillata, Saussurea pseudo-gracilis, etc. Also 3 Korean endangered species which is designating by Ministry of Environment such as Osmanthus insularis and Cyrtosia septentrionalis and 9 rare and remarkable species such as Viburnum japonicum, Asplenium yoshinagae, Broussonetia kazinoki for. koreana, etc. were found in this island. Furthermore, 11 taxa of naturalized plants (3.2%) were also observed in this island.

물의 종류가 절화수명에 미치는 영향

윤재길,김점순,최경옥 진주산업대학교 농업기술연구소 2007 農業技術硏究所報 Vol.20 No.-

자화수와 파이워터는 분자구조가 매우 작은 물로, 생체에 흡수가 잘되고 내병성이 증가되며 절화의 수명과 품질도 크게 증진시킨다고 알려져 있다. 본 실험에서는 이들 물을 이용하여 장미와 카네이션의 절화수명과 품질에 어떤 효과가 있는지 조사하였다. 장미에서 파이워터(N)은 수도수 보다 물의 흡수가 더 잘되어 꽃잎 전개를 촉진시키는 경향이 보였으나, 자화수나 파이워터(W)는 오히려 꽃잎전개를 억제하는 것으로 나타났다. 또한 파이워터(N)만 절화수명을 대조구(수도수) 보다 1일 정도 연장시키는 경향이 있었을 뿐, 다른 물에서는 효과가 보이지 않았다. 카네이션에서는 꽃잎 전개 정도나 수분 흡수에서 처리간 차이가 거의 보이지 않았다. 다만, 파이워터(N)와 자화수가 절화수명을 1일 정도 연장시키는 것으로 나타났다. 자화수와 파이워터의 이화학적 특성을 조사한 결과, 모든 물의 pH는 7.1에서 7.3 범위에 속해서 큰 차이를 보이지 않았으며, ORP도 212mV에서 242mV 범위로 물의 종류간 큰 차이를 보이지 않았다. 용존산소는 파이워터(N)에서 6.2mg/L로 수도수 9.4mg/L 보다 낮았으며 자화수와 파이워터(W)는 수도수와 비슷한 정도였다. 따라서 본 실험에서 자화수와 파이워터가 절화수명 연장에 뚜렷한 효과가 보이지 않았던 이유가 본 실험에 사용된 자화수와 파이워터가 본래의 성질을 가지지 못했을 가능성이 크다고 판단되었다. Magnetized water and Pi water which are very small in molecular size, are very easy to be absorbed into plant, improve the resistance against diseases and extend the vase life of flowers. This study was conducted to clarify the effect of these waters on the vase life of rose and carnation. Pi-water(N) was absorbed more than tap water and stimulated the opening of rose flower. However, magnetized water and Pi-water(W) inhibited the opening of rose petal. Pi-water extended the vase life of rose by only 1 day, but other water did not. Effect of magnetized water and Pi-water on the opening of flowers and evaporation and transpiration amount in cut carnations were not observed. Pi-water(N) extended the vase life of carnation flowers by 1 day, but other water did not. pH of all kinds of water studied in this study were the range of 7.1 to 7.3. ORP of these water were the range of 212mV to 242mV. DO of Pi-water(N) was 6.2mg/L, lower than 9.4mg/L of tap water. DO of magnitized water and Pi-water(W) were similar to that of tap water.

석청(Mad-honey) 복용 후 유발된 부정맥 1예

김용철,김남호,김승환,최준호,박은미,이상재,이은미,유남진,윤경호,오석규,정진원 圓光大學校 醫科學硏究所 2008 圓光醫科學 Vol.23 No.2

석청에 포함된 grayanotoxin에 의해 독성 작용이 나올 수 있으며, 이러한 독성 작용은 일반적으로 24시간 이내 저절로 회복된다. 최근에 본 저자들은 석청 복용 후 발생한 심실빈맥을 경험하였기에 보고하는 바이다. 49세 남자가 호흡곤란으로 내원하였으며, 내원당시 분당 40회 정도의 동성 서맥이 관찰되었고, 수액을 투여하던 중 심실 빈맥이 발생하였다. 항부정맥제를 투여 후 정상 동율동으로 전환되었으며, 특별한 이상 없이 4일 후 퇴원하였다. Mad-honey intoxication caused by the consumption of honey producted from the nectar of rhododendrons. The grayanotoxins cause the intoxication. The toxic effects of mad-honey poisoning are rarely fatal and generally last for no more than 24 hours. We experienced one case, a 49 years-old man who presented with dyspnea after ingestion of mad-honey. He showed marked sinus bradycardia with < 40 beats per minute on admission. The cardiac rhythm was changed to ventricular tachycardia immediately. These features resolved completely in 24 hours with continuous infusion of amiodarone(600 mg per day) and fluids. We report the case of intoxication of mad-honey as a presentation of fatal cardiac arrhythmia.

부등각 엔드밀 가공시 음향방출신호와 절삭력 거동에 관한 연구

김영수,김원일,이윤경,왕덕현 한국공작기계학회 2002 한국공작기계학회 춘계학술대회논문집 Vol.2002 No.-

This study shows how the change of helix angle for different helix angle end mill affects machining accuracy. It was verified that cutting forces are remarkably low when endmill has helix angle of different helix angle 25°, 31°, 37° and AE signals have less relationship with the change of helix angle Moreover, as the number of rotations are increased, the AE signals are increased with the proportion to the number but cutting forces are inversely proportional to the rotation.

프렌치 후드 제작에 관한 고찰Ⅰ

김경희,문윤경 服飾文化學會 2003 服飾文化硏究 Vol.11 No.2

The study was designed to review the changes in designs and the manufacturing methods of french hood, one of the headdresses which play an important role in showing the appearance of costume, to understand design expression techniques through manufacturion of the head dress of the western costumes, and to provide materials to exert creativity for new designs. Based on literature review and portrait study, I manufactured a frenchhood. I set the study cope as from the late 15 century when frenchhood was used for the first time, to the mid 16 century. For the frenchhood selected, I examined the hair style, the characteristics of the french hood, and the pattern first, and proceeded to manufacturing. I used velvet and silk for the textile as explained in the literature. And, I purchased such similar ornaments as shown in the pictures, making the color so similar to the original to the most. Dimensions in manufacturing were those in the literature, since the study is focusing on the reproduction of the features of the portraits. Dimensions of detailed decoration were measured using the ratio of the headdress in the portraits.

전자기식 센서의 용접선 검출 특성에 관한 연구

김원일,이윤경,우성문,최상봉 경남대학교 신소재연구소 1997 論文集 Vol.8 No.-

본 논문은 전자기식 센서의 용접선 검출 특성에 관한 연구이다. 센서의 검출 성능에 영향을 미치는 설계 인자를 실험을 통하여 결정하고 센서를 제작하였다. 제작된 와전류식 전자기 센서를 용접선에 가로지르는 방향으로 주사하여 센서의 용접선 검출능력을 확인하였다. 그리고, 냉간 압연강판 및 스테인레스 스틸, 알루미늄, 구리와 같은 다양한 재료에 대해 용접선 검출 능력을 확인한 결과 냉간 압연강판에서의 검출 능력은 가장 양호하게 나타났고 고합금강 및 비철금속에 대해서도 용접선 검출 가능성을 확인하였다. 또한, 높이 방향 제어용 센서로써의 가능성도 확인하였다. This study is a work on weld line detecting characteristriic of electromagnetic sensor arc welding. Design parameters which effect on sensor performance were determined by experiments. Then a proper electromagenetic sensor of eddy current type was made by using the determined design parameters. Detecting ability of weld line on butt joint in sheet metal was confirmed by scanning the sensor across the weld line. Experiments were also performed on a variety of materials as cold rolled steel, stainless steel, aluminum, and copper and the detecting abilities were compared with each other. Experimental results have shown that the detecting ability on butt joint of sheet metal is good and the sensor can also be used for height control.

순천·광양지역 삼림식생에 대한 식물사회학적 연구

김종홍,신정식,윤경원 순천대학교 2000 순천대학교 자연과학논문집 Vol.19 No.1

The relationship between floristic composition and phytosociological study was investigated from March 1999 to October 1999 in Sunchon and Kwangyang. Depending on physiognomy, actual vegetation map was drawn in 1:25,000 scale. According to Z-M method the surveyed area was classified into seven plant communities, Quercus serrata community, Carpinus laxiflora community, Quercus mongolica community, Pinus densiflora community, Quercus variabilis community, Acer mono community and Pinus koreaiensis afforestation. Whereas the vegetation of Mt. Paegun and Dosolbong is preserved, the others(Duongjuribond, Mt. Yongkae, Kooksabong) are destructed by human interferences.

원통 연삭에서 가공 능률 향상을 위한 연삭 저항의 측정에 관한 연구

김원일,이진,이윤경,왕덕현,이상복,이관철,문원길 경남대학교 공업기술연구소 2000 硏究論文集 Vol.18 No.-

본 연구에서는 원통 연삭 가공에서 가공 능률 향상을 위한 연삭 저항을 측정하고자 연삭 가공 중에 발생하는 연삭 저항의 추이를 확인하였고 다음과 같은 결과를 얻었다. 숫돌과 공작물간의 연삭 강성은 공작 속도의 증가에 따라 지지계의 강성이 높은 경우 증가하였고 절삭 깊이와 연삭 숫돌의 속도에는 연삭 강성이 감소하는 경향을 보였다. 또한 총합 강성은 공작 속도, 절삭 깊이 및 연삭 숫돌의 속도 증가에 따라 지지계의 강성이 높을 수록 증가하였다. 연삭기의 강성 변형과 가공 능률에 영향을 주는 값으로 연삭 강성비는 지지계의 강성이 높을 수록 감소하였다. In this study, the measurement of grinding resistance to improve grinding efficiency in cylindrical grinding was studied and the following conclusions could be obtained. Relation grinding wheel and workpiece, grinding stiffness increases according to increase of work speed for high machine stiffness and decreases depth of cut and grinding wheel speed. Also, resultant stiffness increases high machine stiffness according to increase work speed, depth of cut and grinding wheel speed. The values of the effect stiffness deflection in grinding machine, grinding stiffness ratio decrease according to high machine stiffness.

纖維强化 Plastics의 切削加工에 관한 硏究

金元鎰,李允景,姜渭民 慶南大學校 附設 工業技術硏究所 1991 硏究論文集 Vol.9 No.-

本 硏究에서는 유리纖維 强化樹脂의 旋消時 각 切削 條件에 따른 超音波 振動切削과 常用切削時 나타나는 加工特性을 考察하기 위하여 眞圓度, 表面粗度을 中心으로 比較, 檢討한 結果 다음과 같은 結論을 얻을 수 있었다. 1. 眞圓度의 값은 切削條件 및 振幅에는 많은 影響을 받지 않고, 纖維角이 60˚인 경우 V=60m/min, f=0.08mm/rev, t=0.05mm일때 眞圓度 값이 10㎛로 가장 良好하였고, 纖維角이 90˚인 경우에는 振動切削에서는 19㎛, 常用切削에서는 37㎛로 가장 높은 값이 나타났으며, 振動切削이 常用切削 보다 약 2배 改善되었다. 2. 表面眺度는 纖維角이 60˚인 경우가 가장 良好하고, V=20m/min에서는 振動切削과 常用切削의 값은 거의 變化가 없으며 V=30m/min이상에서는 振動切削이 顯著하게 改善되었다. 3. 工具傾斜角은 眞圓度에는 많은 影響을 미치지 않지만 表面粗度는 0˚보다 6˚가 약간 改善됨을 알 수 있다. 4. 振動切削은 硏削에서 얻을 수 있는 加工精度를 旋削에서도 쉽게 얻을 수 있어 精密度와 生産性을 向上시키는 加工法이라 할 수 있다. In this paper, under different cutting condition on G.F.R.P, ultrasonic vibration cutting and the characteristics in conventional cutting have been studied. So the following conclusion centered on comparison, examination of roundess, surface roughness has been reached. 1. The value of surface roundess doesn't get much effect from amplitude as well as cutting conditions. With 60˚of fiber angle, v=60m/min, f=0.08mm/rev, t=0.05mm, the value of surface roundess, 10㎛, was the best. In case of 90˚, the highest value was 19㎛ in vibration cutting and 37㎛ in conventional cutting vibration cutting has improved about twice as high as conventional cutting. 2. In case the fiber angle was 60˚, surface roundess was little difference between vibeation and conventional cutting. Under v=30m/min and above, vibration cutting has remarkably improved. 3. Even if the tool rake angle doesn't affect the roundess, surface roughness has improved a little more at 6˚than at 0˚. 4. Vibration cutting helps to gain as lathe turing working precision as in grinding, Consequently, it's considered a good working method to improve precision and productivity.

고혈압 환자들의 건강행태

김석범,강복수,윤성호,황정희,이경수 韓國保健敎育.健康增進學會 2000 보건교육건강증진학회지 Vol.17 No.1

This study was conducted to examine health behaviors in hypertensive patients and the factors that would affect these healthy life-styles, and to provide basic data for effective and continuous hypertension control in private medical facilities. Among those patients diagnosed as hypertension who had visited the Department of Internal Medicine of Yeungnam University Hospital during the two month period from August 2 to September 30, 1999, the present study included 222 patients who were in more than one month after the initial diagnosis of hypertension and those who had hypertension for less than 10 years. Using a structured questionnaire, the present study was conducted by a self-administered survey method, and the obtained data were analyzed with t-test, χ2-test and one-way analysis of variance using the SPSS statistical program. The scores on knowledge related to hypertension were higher as the education level of a patient was higher(p〈0.05). As for occupation, those who performed office or management jobs showed higher scores than those who were into manufacturing jobs, and as for economic status, although those patients who were in middle class showed highest scores, however, no statistical significance was observed. The scores of knowledge on hypertension was higher when the family history hypertension was present(p〈0.05). The scores of health-related behaviors were higher with higher education level and higher economic status, higher in those with family history of hypertension, and higher in those with office or management jobs than those who had manufacturing jobs(p〈0.05). Blood pressure measurement on regular basis was performed most frequently in those who were between 50∼59 years old with 83.3% and was least frequent in those who were older than 70 years old with 50%(p〈0.05). The frequency of regular blood pressure measurement was higher with higher education level, higher economic status, higher in those with family history of hypertension, and the highest in those with management position with 93.5%, however, on statistical significance was observed. Changes in health-relaxed behaviors after hypertension diagnosis were higher with higher education level, higher economic status, and in those patients performed office or management work. In particular, diet change was observed in female and higher economic status and smoking cessation was observed in 60∼69 years old. Housewives and office workers or managers have taken exercise more regularly and those who had management jobs and had high scores on knowledge related to hypertension would participate health education program more actively. Thus, for improving health-related behaviors for continuous management of hypertension, changes in health-related behaviors can be followed through conduction health education to improve understanding of knowledge related to hypertension as the method of helping to improve changes in health life-styles in those with little education and those in low economic status.