雪岳山植物調査硏究

鄭台鉉,李愚喆 成均館大學校 1963 論文集 Vol.8 No.-

Mt. Sulak is located on the border of Yangyang and Rinje Gun, Korea(38˚8′ N, and 128˚28′ E.). Mr. Sulak is the highest mountain of the Taiback Mountains which run Korean Peninsula from north to south and the peak Taichoug is the highest of it (above the sea level 1709m.). The Plants of Mt. Sulak have been first collected by Dr. T. Ishitoya & TaiHyun Chung in October 1923 and the first study of this mountain was Dr. T. Nakai's survey of Spiraea pubescens var. lasiocarph Nakai in 1928^⑼ The flora of this mountain has been partly surveyed by many scholar, but no one has ever surbeyed the entier flora of this mountain and as an first attempt toward it Tai-Hyum Chung & Il-Koo Lee published 109 families, 305 genera and 642 species(contained varieties and formae) in 1959. ^(23) The writers are now presenting as the results of survey of 1962 (July 30-August 5) and synthetieal survey of the theories which have been published till today. The results of this study are as follows: (1) The plants of Mt. Sulak are composed of 127 families, 376 gebera, 758 species, 181 varieties, 14 forma and 812 Kind in all. (2) The distribution of this mountain, comparing by Climate Division* of Dr. T. Nakai in 1935^(4), is as the following Table: ◁표 삽입▷ 원문을 참조하세요 *Southern......Southern part from the line connecting from Yong-II bay to Tai-an peninsula, Korea. Northern......Northern part from the line connecting from Won-San bay to Chang-San-Chung, Korea. Middle region......from southern line to Northern line (3) Endemic plants of this mountain are as follows; Spiraea pubescens var. lasiocarpa Nakai Taxus caespitosa Nakai Hyphear Tanakae(Fr.&Sav.) Hosokawa Prunns sibrica L. var. Pubescens (Kostina) Nakai Tilia mandshurica Rupr. & Maxim. var. villicarpa Nakai Veratrum Maackii Regel var. Macranthum Loesner fil. for. viridiflorum Nakai Clematis koreana Komarov var. biternata Nakai Rubia mitis Miquel for. glabrescens Nakai

Active Carbon에 의한 Ethylene Glycol 의 液相吸着

鄭泰秀,李鉉柱 成均館大學校 1983 論文集 Vol.33 No.-

In adsorption processes, equilibrium and the rate of approach to equilibrium are important design and operation variables. The concentration of ethylene glycol, which was greatly decreased by adsorption on active carbon, was measured in a stirred tank adsorption vessel at 30, 40, and 50℃. The data of adsorption equilibrium in various concentrations have been plotted on the basis of Henry, Langmuir, and Freundlich adsorption relations, and it has been found that the data are well fitted by the Langmuir and Freundlich adsorption isotherms. At the early stage of adsorption, the adsorption rate on the external surface is so rapid compared with other mass transfer process that the inital adsorption rate is governed by boundary film mass transfer process between the bulk liquid and the external surface of active carbon. The coefficent of boundary film mass transfer is also proportional to the revolution speed of impeller. The values of intraparticle diffusion coefficent, which has been determined by the Dryden and Kay method at 30, 40, and 50℃, increases with increasing temperature.

忠北植物調査硏究

鄭台鉉,李愚喆 成均館大學校 1961 論文集 Vol.6 No.-

태권도 품새 수련이 아동의 심박수, 심근산소소비량, 에너지 대사에 미치는 영향

정성태,전태원,박익렬,정덕조,우재홍,이광희,이동기,강현주 서울대학교 체육연구소 2000 서울大學校 體育硏究所論集 Vol.21 No.1

The Taegeuk Poomse 1 through 8 of Taekwondo are based upon eight major branches of philosophical theories. The propose of this study was to investigate the nfluence of Taekwondo poomse trainning on heart rate, MVO2, energy metabolism in primary school students. Subjects for this study were eight male the fifth∼sixth grades students who participated in exercise program consist of Taekwondo poomse trainning in dojang which is located in Shinlim-2dong, Kwanak-Gu, Seoul(12.7± 0.5years, 150.8 ±4.6cm, 45.1 ± 9.4kg, 24.9 ± 9trainning length). The results of thet this study are as follows: 1) The average of heart rate was Taegeuk Poomse 1 through 8 of Taekwondo 90.57± 4.gbeats/min in rest and 139.7 ± 17.5beats/min in exercise. The minimum heart rate was 89.0±2.8, peak heart rate was 167.1 ±6.4 in exercise. It was ranged from 42% to 80% 2) of the max heart rate and ranged 42 to 65%HRmax. Taegeuk 1 Jang was differenced with others Jangs significantly(p<0.05), 2) The time of the Taegeuk 1 through 8 Jang of Taekwondo was 5minutes 12seconds. Heart rate was ranged from 90.6 ± 7.85beats/min to 171.8 ±8.Ibeats/min and increased linearly. 3) The average of the MVO2 was 11.1 ±0.78mmHg · bpm-3 in rest and 19.1 ± 1.2mmHg ㆍbpm-3 in exercise. MVO2 was ranged from 10.5mmHg · bpm-3 to 20.3mmHg · bpm-3. There were not difference between Taegeuk Poomses(p<0.05). 4) The energy metabolism was as follows: Mean VO2 Respiratory exchange ratio, energy consumption were 0.51(V02L/min),0.71(RQ),2.32Ckca1/min) in rest respectively. but In exercise Mean VO2 Respiratory exchange ratio, energy consumption were 0.89 ± 0.18( V 02L/min), 0.79±0.08(RQ), 4.26±0.51(kcal/min) respectively . The difference was only between Taegeuk 1 Jang and Taegeuk 3 Jang(p<0.05). This study showed that the Taekwondo Poomse trainning was proper exercise for fitness, body composition and weight control in normal, abnormal(obese) children because the Taekwondo trainning are dynamic and exciting sport.

항산화제 섭취가 탈진적 운동 시 장딴지근의 GPx 및 GR의 활성에 미치는 영향

정성태,김연수,이왕록,박익렬,강현주 서울대학교 체육연구소 2001 서울大學校 體育硏究所論集 Vol.22 No.1

The purpose of this present study was to investigate the effect of maximal exercise and a long-term antioxidants supplementation on antioxidant enzyme(GPx and GR) activity of gastrocnemius muscle in rats. Twenty four male Sprague-Dawley rats(4 weeks old) were used as subjects. The subjects were divided into 4 groups such as, CON(n=6 in control group), NAE(n=6 in non antioxidants exercise group), AC(n=6 in antioxidants control group) or AE(n=6 in antioxidants exercise group). Non-antioxidants group(CON & NAE) fed general food(Samyang, Inc., Korea) for 16 weeks. Antioxidants group(AC & AE) fed the general food and the mixed antioxidants which were consist of vitamin E(200 lu/kg/day), vitamin C(50 mg/rat/day), vitamin B6(250 ug/kg/day), β carotene(300 mg/kg/day) and selenomethionine(0.1 mg/mg/day), The weight of each subject group was weighed 2-3 times per week. After the diet experiment for 16 weeks, exercise groups(NAE & AE) completed acute treadmill running(speed increased gradually to 25 m/min, 15% uphill grade, ∼50±10 min) until exhaustion. Immediately after exhaustive treadmill exercise, all the subjects were sacrificed for the isolation of gastrocnemius. Then, GPx(Glutathione Peroxidase) and GR(Glutathione Reductase) of the gastrocnemlus muscle were assayed. The protein concentration in the muscle and heart was determined by the Lowry method. After finishing the analysis of antioxidant activity, statistical analysis was carried out by two-way ANOVA and independant t-test. The results of this study can be summarized as follows: Maximal exercise increased the GPx and GR activity of gastrocnemius muscle, Further, a long-term antioxidants supplementation more significantly increased the GPx and GR activity of gastrocnemius muscle than those of non-antioxidants group. In conclusion, the present results clearly show that the exhaustive maximal exercise gave rise to increase oxidative stress which led to oxidative damage so that the antioxidant enzyme activity of gastrocnemius muscle were increased. Further, it has been found that the long-term antioxidants supplementation could decrease oxidative stress in the tissues so that the antioxidant enzyme activity of skeletal muscles was more increased.

癩腫樣型癩의 血淸脂蛋白의 分劃

金澄賢,鄭泰浩,宋浚榮,徐正姬 大韓癩學會 1979 癩學 會誌 Vol.12 No.1

전국 응급의학과 수련병원의 응급실 병력지에 대한 분석

임태호,임훈,이종호,강형구,장문준,조광현,장석준,김승호,정상원 대한응급의학회 2000 대한응급의학회지 Vol.11 No.4

Background: This study was designed to analyze the current emergency department(ED) medical records of teaching hospitals in Korea. Methods: The five-item questionnaires were mailed to the EDs of 40 hospitals. Among them, 27 questionnaires and 35 ED medical records were returned for reply rates of 67.5% and 87.5%, respectively. Results: 1) The actual number of data elements in the ED medical records used by each hospital varies widely. It ranges from 1 to 15 data elements with an average of 7.5 data elements. 2) Thirteen data elements, signature of nurse, checklist style in review of systems, checklist style in physical examination, neurologic examination, figure of face, Glasgow coma scale, trauma scale, treatment plan, mode of transfer, condition on transfer, documents sent with patient, condition on discharge or discharge instruction, use of pediatric chart and vaccination history are used by less than 50% of the medical records examined. 3) There was no difference in the total number of data elements or in redesign and computerization of ED medical record based on the location of the hospital, the type of hospital administration, or the number of years since the start of EM residency program. 4) There was a statistically increased number of data elements in redesigned medical records. 5) In the survey, 89% of the residents replied that medical records needed to be redesigned. With respect to uniformity, 58% of the residents disagreed. A well-designed checklist chart rather than a descriptive chart was preferred by 89% of the residents. Conclusion: The currently used ED medical records have much room for improvement. The age of the ED had little impact on the quality of ED medical records. More attention and effort in this field are needed. In addition, The Korean Society of Emergency Medicine should provide guidelines for ED medical records.

補益藥의 補血機轉에 對한 本草學的 解釋

이제현,이한구,김진숙,김연태,김정숙 대한본초학회 1997 大韓本草學會誌 Vol.12 No.2

Hematopoietic actions induced by administration of Astragali radix, Angelicae gigantis radix, Rehmanniae radix preparat and Cervi pantotrichum cornu were compared in SAM R1 and P6. We measured complete blood cells such as RBC, Hb and Hct using Coulter's method and compared the results each other in a view of traditional Korean medicine. The administration of Angelicae gigantis radix did not induce hernatopoietic actions in SAMs and also was quite different those from the other 3 herbs. Thus, the mechanisms of the hematopoietic action by Astragali radix, Angelicae gigantis radix, Rehmanniae radix preparat and Cervi pantotrichum cornu could be different each other.

이온주입이 금속의 일함수에 미치는 영향(Ⅰ)

김현경,강석태,황정남,이철주,최대선,정병두 연세대학교 자연과학연구소 1984 學術論文集 Vol.13 No.-

이온 주입이 일함수 차이에 미치는 영향을 연구하기 위하여 낮은 에너지 이온 가속기, 전자총과 기타 일함수 차이를 측정하기 위한 장치를 설계, 제작하였다. 제작된 이온 가속기의 집속 특성은 이론적인 값과 일치하였다. 즉, 집속 렌즈의 확대율이 이론값은 2.0인데 비하여 1.2로 상당히 작은 값이었다. 또한 집속 렌즈의 전압 V_L과 추출 전압 V_e에 의한 집속 특성 역시 이론값과 매우 잘 일치하였다 . 제작된 장치를 사용하여 다결정 Cu와 Ni의 일함수 차이를 측정한 결과 0.45eV임을 알았다. 그리고 전자선을 이용하여 억제 전위차로 일함수를 측정할때 입사 전자의 반사율을 고려해야 함을 알았다. Low energy ion accelerator, electron gun, and apparatus for measuring work function difference are designed and constructed in order to study the effect of ion implantation on the work function. The focusing properties of accelerator is coincided with theoretical results; the magnification of Einzel lens is found to be 1.2, while theoretical value is 2.0, and the focal properties as a function of V_L/V_e are in good agreement with theory. Using these systems, the work function difference between polycrystalline Cu and Ni is found to be 0.45eV, and the experimental retarding potential plots indicate close agreement with the theoretical values modified by electron reflection.

液體膜에 의한 Cyclohexane과 n-Heptane 混合物의 分離에 있어서 界面活性劑가 미치는 影響

崔洙鉉,鄭泰秀 成均館大學校 科學技術硏究所 1994 論文集 Vol.45 No.2

In the separation of cyclohexane-n-heptane mixture by liquid membrane in a batch system, the effects of surfactants on the separation factor were investigated with the surfactant concentration ranging from 0.2 to 1.0wt%. The surfactants used were sodium lauryl sulfate, sodium laurylether sulfate and triethanolamine lauryl sulfate. The separation was most effective at the surfactant concentration of 0.4wt% and at the emulsification speed of 1200 rpm for all three surfactants. The separation was also most effective at the contact time of 20 mimutes for sodiurn lauryl sulfate and 15 minutes for sodium laurylether sulfate at the settling time of 10 minutes, while it was so for triethanolamine lauryl sulfate at the contact time of 20 minutes and the settling time of 15 minutes.