Algal bioassay 에 의한 조류생장 제한영양염류 결정

오희목(Hee Mock Oh),이석준(Seog June Lee),김성빈(Seong Bin Kim),박미경(Mi Kyung Park),윤병대(Byung Dae Yoon),김도한(Do Han Kim) 한국하천호수학회 1998 생태와 환경 Vol.31 No.2

Determination of Limiting Nutrient for Algal Growth by Algal Bioassay. Oh, Hee-Mock, Seog June Lee, Seong-Bin Kim, Mi- Kyung Park, Byung-Dae Yoon and Do-Han Kim (Environmental Microbiology Research Unit, Korea Research Institute of Bioscience and Biotechnology, Taejon 305-333, Korea and Water Resources Research Institute, Korea Water Resources Corporation, Taejon 305-390, Korea) Water quaiity and algal growth potential (AGP) using Microcystis aeruginosa were investigated from April to September 1997 in Daechung Reservoir. Secchi disk transparency was 1.1 m in August. Chlorophyll-a concentrations were higher than 10㎍/l at all samples. Total phosphorus concentration was in a range of 0.020∼0.027mg/l which is at the approximate value of 0.03 mg/l, the general critical level of eutrophication. These results indicate that Daechung Reservoir is in an eutrophic state except some temporary times and restricted sites. Phosphorus uptake rate of M. aeruginosa was higher in the water from the epilimnion than in the hypolimnion and also higher under light condition than under dark condition. Therefore, phosphorus uptake rate appears to depend on cellular phosphorous content and light condition, a meaning of endergonic process. Phosphorus was the most frequently limiting nutrient: phosphorus was limiting algal gowth in April and May, nitrogen, phosphorus and trace elements were the limiting factors for algae in August, and trace elements in September. If a fast growing alga, M, aeruginosa, is used as a test organism for assaying AGP, in vivo fluorescence instead of dry weight can be measured for algal biomass and incubation period can be reduced from traditional 14 days to 7 days.

헤어리베치 신품종 조생종 콜드그린과 중만생종 청파의 생육특성 및 수량성

신정남(Chung Nam Shin),고기환(Ki Hwan Ko),김종탁(Jong Tak Kim),이종경(Joung Kyong Lee),서성(Sung Seo),성병렬(Byung Ryul Seong),최기준(Gi Jun Choi),김종덕(Jong Duk Kim),오명곤(Myung Gon Oh) 한국초지조사료학회 2007 한국초지조사료학회지 Vol.27 No.4

본 시험의 목적은 대구 경북에 자생하는 헤어리베치로 다수성 조생품종과 중만생품종을 개발하기 위하여 수행하였다. 경북 성주와 경남 사천에서 1998년부터 2006년까지 자료수집 및 순화, 생육이 왕성한 조생 및 중만생계통선발, 상호교잡의 단순순환선발법으로 조생종인 콜드그린과 중만생종인 청파를 육성하였다. 육성종자는 2004년부터 2006년까지 경북성주와 경남사천에서 생육특성과 수량을 평가하였다. 줄기의 털은 콜드그린과 청파는 있었으나, 헤이메이커프러스와 라티고는 없었다. 잎의 모양은 콜드그린은 엽폭이 넓은 장타원형이고, 청파, 헤이메이커프러스, 라티고는 좁은 장타원형이었다. 꽃색은 콜드그린은 자주색이고 청파는 보라색이었다. 내한성은 성주에서 콜드그린, 청파, 라티고가 헤이메이커프러스 보다 높았으며 사천에서는 차이가 적었다. 개화기는 콜드그린과 헤이메이커프러스가 조생종으로 유사했고 중만생종인 청파는 라티고 보다 다소 빨랐다. 성주에서 건물수량은 콜드그린이 다른 품종 보다 높았으며 청파와 헤이메이커프러스는 라티고 보다 높았다(P<0.05). 2005년 사천에서는 콜드그린과 헤이메이커프러스는 다른 품종보다 높았으며, 청파는 라티고 보다 높았다(P<0.05). 베치의 조단백질 함량은 높고 ADF의 함량은 낮았다. The objective of this research was to develop a high yielding, early and medium-late flowering new hairy vetch(Vicia villosa Roth) varieties derived from an accession in Korea. Most vigorous early and medium-late flowering hairy vetch lines were selected and crossed by open pollination and their seeds were bulked and plants were reselected at Seongju in the Keongbuk and at Sacheon in the Keongnam. A performance trial was conducted to evaluate agronomic characteristics, forage quality and dry matter(DM) yield of new hairy vetch early-maturing 'Cold green' and medium-late maturing variety 'Cheong pa' at Seongju and Sacheon. 'Cold green' and 'Cheong pa' are hair but 'Haymaker plus' and 'Latigo' are nearly hairless. 'Cold green' has purple flowers while 'Cheong pa' has violet. The cold tolerance of 'Cold green,' 'Cheong pa' and 'Latigo' was higher than 'Haymaker plus' at Seong-ju, Keongbuk province, in inland region but there were a little differences at Sacheon, Keongnam province in southern coast region. Fifty percent-flowering dates of 'Cold green' and 'Haymaker plus' had earlier than others and 'Cheong pa' was earlier than 'Latigo'. The DM yield of 'Cold green' was higher than that of others, but 'Cheong pa' and 'Haymaker plus' had higher than 'Latigo' at Seong-ju(P<0.05). In Sacheon, The DM yield of 'Cold green' and 'Haymaker plus' was higher than others and 'Cheong pa' had higher than 'Latigo'.

Niwaella multifasciata Wakiya et Mori (Cobitidae)의 附屬骨格

成娟濟,楊洪準,南明模,蔡秉洙 경북대학교 과학교육연구소 1988 科學敎育硏究誌 Vol.12 No.-

The appendicular skeleton of Niwaella multifasciata was described as a part of systematic study of Cobitidae. In the pectoral girdle, posttemporal was sigmoid form, and upper and lower arms of cleithrum had an angle of 105°, the length of lower arm was one-third of upper one. The scapular had a foramen in the center, and actionst was consisted in three pairs of bone. Postcleithrum was absent. Pelvic girdle was consisted in a pair of innominatium and three pairs of basiost. In the pterygiophore, dorsal fin was supported by three interneural spine and thirteen basiost, and interneural spine was located between the neura니 spin of the 27-31th vertebrae. Anal fin was supported by five interhemal spine and nine basiost, interneural spine was located between the hemal spine of the 42-45th vertebras.

經濟發展論의 比較考察

成炳卓 대구교육대학교 1974 論文集 Vol.10 No.-

In this paper, I have attempted to compare the theories of economic development on Classical, Maxian, Neo-classical, Schumpeterian, and Keynesians. theories of economic development have long been of interest, and the above economists have all contributed to the subject. Besides, I have summarizes the major differences and similarities among these theories. And both their contributions and limitations to the understanding of the economic development process are stressed.

Keynes體系와 Schumpeter體系와의 比較 考察

成炳卓 대구교육대학교 1972 論文集 Vol.8 No.-

In this paper, I have attempted to compare the Keynesian theoretical system with that of Schumpeter. So far as Keynesian theoretical system is concerned, Keynesians have a vision on the process of capitalist development that the capitalist economy may eventually a state of stagnation. Quite on the contrary, Schumpeter contends that capitalism can yield even higher levels of real income at the cost of nothing more than temporary interruptions in economic activity. In brief, the theoretical frame of Keynesians and Schumpeter's is made up of the above propositions which are explained in relation to each other in my paper.

양성 및 비양성 뇌교출혈의 임상방사선학적 연구

김병곤,이한보,박성호,노재규,노재규 대한신경과학회 1999 대한신경과학회지 Vol.17 No.1

經濟發展의 人口抑制效果

成炳卓 대구교육대학교 1975 論文集 Vol.11 No.-

The purpose of this theses is to analyze the effects of economic development on population growth. From past to present two main theories have been opposed to each other; one asserts that the economic development encourages the growth of population while the other gives emphasis on the decreasing function of economic development of population growth. Recently, however, the negative effectgs of economic development on population growth have been witnessed in the actual development process of many countries. So I tried to inquire into the decreasing effects of economic development on population growth in this paper focusing my attention on the causes and factors of its decreasing effects.

國際的 人權保護와 不干涉의 原則

朴炳度,洪性讚 건국대학교 사회정책연구소 1998 사회과학연구 Vol.9 No.-

페놀분해 효모 Candida tropicalis PW-51의 분리 및 분해특성

김성빈,김치경,김희식,이창호,신기선,권시석,윤병대,오희목 한국미생물생명공학회 ( 구 한국산업미생물학회 ) 1996 한국미생물·생명공학회지 Vol.24 No.6

본 연구는 페놀과 포름알데히드를 포함하는 페놀계수지 산업폐수의 생물학적 처리에 이용할 목적으로 포름알데히드의 존재하에서 페놀분해능이 우수한 효모를 sludge로부터 분리하여, 형태적 및 생리 생화학적 특징을 조사하여 Candida tropicalis PW-51로 동정하였다. 회분식 배양에서 C. tropicalis PW-51의 페놀 분해한계는 2,000 mg/ℓ이며, 58시간내에 완전히 분해하였다. C. tropicalis PW-51은 초기접종량이 9×10 exp (6) cells/㎖, 배양온도는 30℃, pH는 7.0에서 페놀 분해효율이 높았으며, 500~2,000 mg/ℓ의 페놀농도에서 조사된 페놀에 대한 평균 분해율은 페놀 1,000 mg/ℓ에서 45.5 mg/ℓ/h 가장 높았다. C. tropicalis PW-51의 페놀분해시 catechol 1,2-dioxygenase의 활성이 크게증가하므로 ortho-path-way에 의해 페놀을 분해하는 것으로 판단되었다. 따라서, C. tropicalis PW-51는 페놀계 수지 산업폐수의 생물학적 처리에 효과적으로 이용될 수 있는 균주로 사료된다. For the biological treatment of phenolic resin wastewater containing phenol and formaldehyde, a phenol-degrading yeast was isolated from the papermill sludge, and then identified as Candida tropicalis PW-51 according to morphological, physiological and biochemical properties. The strain was able to degrade high phenol concentrations up to 2,000 mg/ℓ within 58 hours in batch cultures. Phenol-degrading efficiency by the strain was maximum at the culture conditions of a final concentration of 9×10 exp (6) cells/㎖ 30℃ and pH 7.0. The mean degradation rate of phenol was highest at 45.5 mg/ℓ/h in 1,000 mg/ℓ phenol from 500 mg/ℓ to 2,000 mg/ℓ phenol. Because the enzyme activity of catechol 1,2-dioxygenase increased in the course of degradation of phenol, it seems that this strain degrades phenol via the ortho-cleavage of benzene ring. The isolate C. tropicalis PW-51 could be effectively used for the biological treatment of phenolic resin wastewater.

감조하천의 유로단면변화에 따른 유황해석

민병형,민일규,이승휘,박한기,박홍준 東亞大學校 建設技術硏究所 1997 硏究論文集 Vol.21 No.2

The subject of this study apply to KyungSangNamDo Sachun-Si Sachun-bay sea area for builds up a industrial complex, and inquire into the phenomenon in compared after with before reclamation. I investigated, how to remove these harmful influence and make a estimate that a water-level, flow direction and river-bed evolution by inflow of river, wave' s attack. So we have come to the conclusion as follow. 1. Water Level : After reclamation, the water-level is ascended, but the water-level is stable after dredging and changing water-course. 2. Velocity of Flow : After reclamation, back water broke out, the velocity of flow was faster after dredging and changing water-course, but the velocity of flow came to be stable in the downstream. 3. River-bed Evolution : After reclamation, the severe erosion occurred in the front of revetment, but after dredging and changing the water-course as the new stable water-course constituted, river bed evolution decreased and the flood wave flow smoothly. 4. After reclamation, the water-level remarkably increased, but the velocity of flow was nearly the same.