西部慶南地域의 느타리버섯 裁培 및 疾病 發生 現況

김철호,조용운,김홍출,이상원 진주산업대학교 1999 論文集 Vol.38 No.-

The authors surveyed the present situation of Agaricus sp cultivation and its disease occurence in Western Kyong-Nam area. 192 farmers, which is 66% of the mushroom-cultivating farmers, were growing Agaricus sp. Especially there were 124 farms in Western Kyong-Nam around Chinju-City. The greater part of mushroom-farmers cultivated Agaricus sp. on tables using cotton as major medium. And they purchased the eldest mycelium from other districts. About 60% of the farmers were suffering some losses due to the development of disease. The major disease seemed to be brown blotch. When a mushroom-disease has developed, most farmer coped with it by removing the cotton media, and sometimes by treating with chemicals. Mushrooms seemed to be a major source of farmers' income, and some govenmental and scientific supports are needed for the development of mushroom cultivation.

공역 리놀레산 유도체의 세균생장 억제효과

金紅出,趙鏞雲,李相元,金哲鎬 진주산업대학교 2000 산업과학기술연구소보 Vol.- No.7

Antibacterial activity of CLA-K salt was surveyed in this paper. CLA-K(10%) exhibited antibacerial activity at the concentration more than 60 ㎕. The antibacterial activity of CLA-K in liquid culture was relatively proportional to its concentration. The resistance of bacteria against CLA-K increased as time goes by. Streptococcus mutans, Bacillus cereus KCCM-l1204, Lactobacillus plantalium and Escherichia coli ATCC-11835 were relatively sensitive to CLA-K. Staphylococcus aureus KCTC-l927 and Klebsiella pneumoniae KCTC-2208 sensitively reacted to the concentration of CLA-K.

인터넷 광고모델과 전략에 관한 연구

안운석,강선희,오종철 남서울대학교 경영연구센타 2003 경영연구 Vol.5 No.-

Internet advertising is an important advertising instruments(media) in the present time. So today's internet advertising grown up exceedingly. This study is focus on Internet advertising conditions, internet advertising models, and internet advertising strategies. And in connection with matters, this study suggests various internet advertising models and strategies.

대청호에서 수화(water-bloom)와 대장균군 분포도의 상관관계

김철호,조용운 진주산업대학교 환경문제연구소 1998 環境硏究論文集 Vol.2 No.-

중부지방의 중요한 수자원인 대청호의 회남교 부근에서 수화가 형성되는 시기를 전후하여 대장균군의 분포도를 조사하고, 다른 환경요인과의 상관관계를 확인하였다. 이 수역에서는 조사기간 동안 표층보다는 중층과 하층에 더 많은 대장균군이 분포하였다. 특히 수온약층이 형성되는 시기에는 중층에서 더 높은 분포도를 나타내다가 수온약층이 파괴되면서 수층간에 큰 차이 없이 거의 일정한 분포도를 보였다. 또한 강우량이 많은 시기인 6월 19일과 8월 5일에는 중층과 하층에서 대장균군의 분포도가 높게 나타났는데, 이는 유역의 오염원을 함유하고 있는 상류의 유입수가 수온약층의 하부로 흐름으로써 나타난 결과로 볼 수 있다. 또한 표층에서의 대장균군 분포도는 시안세균에 의한 수화가 형성되는 시기에 비하여 다른 시기에 비교적 높게 나타났는데, 이는 시안세균의 높은 광합성 결과로 표층의 pH가 높아짐으로써 대장균군의 생장이 억제된 결과로 이해할 수 있다. 이상의 결과로부터 자연수계의 대장균군은 외부에서 유입되는 것이 대부분이며, 시안세균의 활성이 높은 시기에는 그 분포도가 낮아진다는 것을 알 수 있다. 이러한 점에서 수화와 같이 환경의 변화가 심한 시기에 자연수계의 분변오염 여부를 대장균군의 분포도만으로 예측하는 것은 한계가 있다고 하겠다. The authors surveyed the monthly variations of distribution of coliform bacteria in Daechung Dam reservoir during cyanobacterial water bloom, and examined its relationship with environmental factors. The distribution of coliform bacteria was higher at middle and bottom layer than at surface layer. Especially its distribution at middle layer was high during the period of thermal decline, and showed little difference in population size of coliform bacteria when thermal decline destroyed. At June 18 and August 5, the period of higher rainfall, the coliform bacteria distributed highly at middle and bottom layers, which seemed to be the result of inflow of low-temperature water. At surface layer, coliform bacterial distribution was higher during water-bloom period, which can be explained by the result of higher pH of surface water resulted from strong photosynthetic activity. These results show that the coliform bacteria in natural water ecosystem originate from the inflow of water and its distribution is low during the period when cyanobacteria grow actively. This suggests that it have a problem to estimate whether the natural water is contaminated with feces.

영지버섯 리큐르주의 침출시간에 따른 성분변화

金紅出,李相元,金哲鎬,趙鏞雲 진주산업대학교 2000 산업과학기술연구소보 Vol.- No.7

The physicochemical factors such as organic acid composition, pH, sugar content, acidity and color according to extraction time of Ganodema licidum liquor changed as followings; 1. The major general components of Ganodema licidum were analyzed to be crude fiber(47.5%), carbohydrate (29,4%), crude protein (14.8%), crude fat (6.5%) and crude ash (1.8%) in dry basis. 2. pH and sugar content in Ganodema licidum liquor slightly decreased, whereas acidity increased with extraction time. 3. The luminosity of color (L) showed no remarkable change. 4. The tone of color (a) decreased, whereas the chroma (b) increased as time goes by. 5. The concentration of total organic acid in Ganodema licidum liquor was 2.453%, and nine kinds of organic acids such as oxalic, citric, tartaric, succinic, lactic, formic, acetic, propionic and isobutyric acid were detected. Among them, the concentration of lactic acid was highest acetic and isobutyric acid were medium level, and that of citric, formic, succinc and tartaric acid was very low.

다목적 시설물관리를 위한 지형공간정보체계의 자료기반 구축에 관한 연구

박운용,윤경철,신상철 동아대학교 공과대학 부설 한국자원개발연구소 1995 硏究報告 Vol.19 No.2

GSIS is a system that contains apatially referenced data that can be analyzed and converted to information for a specific set of purpose, or application. The key feature of a GSIS the analysis of data to produce new information. The current emphasis in the multi-purpose facility management is to implement GSIS in conjunction with database systems. This study is about the database design of GSIS, which is an important and time consuming activity necessary in the implementation of such systems. In this study, distinguishing data into a base map, a thematic map data, documents according to data types and dividing it into spatial data and attribute data according to data characteristics. The GSIS application process for facility management of Dong-A University is divided into two phases.

원자력발전소 PSI/ISI 데이터 관리를 위한 지능형 데이터 베이스 프로그램 개발

박은수,박익근,엄병국,박윤원,강석철 韓國非破壞檢査學會 1998 한국비파괴검사학회지 Vol.18 No.5

Windows 95 환경하에서 PSI/ISI 데이터의 효율적 관리를 위한 종합지원시스템의 구축과 다원적평가와 분석이 가능하고, 비파괴검사에 의한 원전기기의 건전성 평가시 규제측면에서 기술적인 지원을 할 수 있는 고리 원전 PSI/ISI 데이터 베이스 구축과 프로그램을 개발하였다. 이 프로그램을 활용하면 현재까지 수행된 고리 원전 PSI/ISI의 수행현황과 지금까지 발견된 결함에 대한 조사분석이 가능하며, 향후 국내 PSI/ISI결과의 자료분석이 가능한 전문가 시스템(expert system)개발에 한단계 접근하게 되었다. 그리고, PSI/ISI에서 발견된 결함에 대한 조사분석 결과를 근거로 결함의 종류, 형태, 처리방법 등에 대한 자세한 분석을 통하여 국내 원전 PSI/ISI 결과의 확률론적 신뢰도 평가, 또는 확률론적 안전성평가를 위한 결함검출확률곡선의 작성과 위험도에 근거한 가동중검사제도의 도입에 필요한 기초 자료를 제공하였다. 더 나아가 지금까지의 자료분석을 바탕으로 보다 경제적이며 신뢰성이 높은 PSI/ISI의 수행으로 원전 압력경계기기의 건전성과 신뢰성 확보 및 수명예측을 위한 기초자료를 제공하였다. For an effective and efficient management of large amounts of preservice/inservice inspection(PSI/ISI) data in nuclear power plants, an intellegent Windows 95-based data management program was developed. This program enables the prompt extraction of previously conducted PSI/ISI conditions and results so that the time-consuming data management, painstaking data processing and analysis in the past are avoided. The program extracts, and the associated remedies. Furthermore, additional inspection data and comments can be easily added or deleted for subsequent PSI/ISI operation. Although the initial version of the program was applied to Kori nuclear power plant, this program can be equally applied to other nuclear power plant. And also this program can be used to offer the fundamental data for application of evaluation data related to fracture mechanics analysis(FMA), probabilistic reliability assessment(PRA) of PSI/ISI results, performance demonstration initiative (PDI) and risk-informed ISI based on probability of detection(POD) information of ultrasonic examination. Besides, the program can be further developed as a unique PSI/ISI data management expert system that can be apart of PSI/ISI data management expert system that can be a part of PSI/ISI Total Support System(TSS) for Korean nuclear power plants.

번들조정에 의한 항공삼각망의 최적형상 결정에 관한 연구

박운용,신상철,윤경철 東亞大學校 大學院 1996 大學院論文集 Vol.21 No.-

The capability to map all potrions of the earth's surface always depended on the capacity to survey. Classical analog photogrammetry has been enhanced by more accurate and more rapid digital vector output. Analog plotter can moreover now easily be converted into analytical instruments to facilitate orientation, operator asisted DTM measurement, aerial triangulation, and vector plotting. Digital photogrammetry with scanned aerial photography has greatly enhanced the capabilities of restitution at large and medium scales. Digital orthophotography offers possibilities, which are one order of magnnitude less costly than conventional mapping, even though the same resolution performance cannot yet be reached, when digital work stations with reasonable computing speeds are campared with analytical plotters. However with rapidly increasing computer performance, the situation is gradually changing in favour of digital systems. In this study, the accuracy of three dimensional location was improved by bundle block adjustment with additional parameters, which are able to systematic error through detection and elimination of the gross error for observation values in aerial triangulation. In order to test thevariability in performance of the different weighting schemes in accurately detecting gross error, robust estimation method. And also, the different control point patterns and ovelap, twelve types of additional parameters were used for comparison analysis. As a result, it is expected to the sequential procedure of analysis can be utilized in the accuracy analysis of aerial triangulation effectively.

Metarizium anisopliae (Metschn.) Sorok이 생산하는 Lactobacillus plantarum 용균효소의 분리, 정제 및 특성

류기철,함병권,백운하,유주현,배동훈 한국미생물생명공학회 ( 구 한국산업미생물학회 ) 1996 한국미생물·생명공학회지 Vol.24 No.6

김치저장성을 향상시키기 위하여, Lactobacillus plantarum 용균효소 생산균주를 토양으로부터 분리한 후 그 효소를 정제하고 특성을 살펴보았다. 본 균주의 배양학적 및 형태학적 특성 등을 검토한 결과 Metarrisium anisopliae (Metschn). Sorok으로 동정되었으며, 본 효소는 affinity adsorption, CM-Sephadex C-50 column chromatography를 통하여 40%의 수율과 75배 정제도로 정제되었다. 효소활성의 최적 pH와 온도는 각각 4.0, 40℃였으며, pH 3.0~9.0, 60℃까지 효소의 안정성이 유지되었다. SDS-PAGE 및 gel filtration으로부터 본 효소의 분자량은 40,000 daltons인 monomeric protein임을 확인하였다. 본 효소는 Lactobacillus plantarum 세포벽 peptidoglycan의 peptide linkage를 절단 하는 endopeptidase였으며, 용균 spectrum으로부터 김치발효시 유용균인 Leuconostoc mesenteroides에 대해서는 활성을 거의 나타내지 않음을 확인할 수 있었다. 본 효소의 활성은 Ag^+, N-bromosuccinimide (NBS)에 의해서 완전히 저해되었으며, NBS에 의해서 활성이 저해된다는 사실로부터 본 효소는 활성에 tryptophan residue가 관여하는 것으로 확인되었다. 본 효소는 산성 아미노산의 함량이 염기성 아미노산의 함량에 비하여 높았으며, alanine, glycine, proline, tyrosine의 함량 또한 매우 높았다. To improve the preservation of Kimchi, we isolated Lactobacillus plantarum lytic enzyme-producing strain from soil, and the enzyme was purified and characterized. From the observation of cultural and morphological characteristics, the isolated strain was identified as Metarrisium anisopliae (Metschn). Sorok. The enzyme was purified to 75-folds with 40% yields through affinity adsorption and CM-Sephadex C-50 column chromatography. The optimum pH and temperature for lytic activity are 4.0 and 40℃, respectively, and the enzyme acitivity is stable between pH 3.0 and 9.0 and up to 50℃. The enzyme is a monomeric protein with molecular weight of 40,000 daltons by SDS-FAGE and gel filtration. The enzyme is endopeptidase which breaks the peptide linkage of Lactobacillus plantarum peptidoglycan. The lytic action spectra confirmed that Leuconostoc mesenteroides, a useful strain for the fermentation of Kimchi, is not lysed by the enzyme. The enzyme activity is inhibited by N-bromosuccinimide (NBS), which probably indicates the involvement of tryptophan residue in active site of the enzyme, and also inhibited by Ag^+. The amino acid composition analysis showed that the enzyme contains more acidic amino acids than basic ones, and composition of alanine, glycine, proline and tyrosines was very high.

소프트웨어 에이전트 모형개발에 관한 연구

성낙운,백철경,조민규 慶星大學校 1998 論文集 Vol.19 No.1

Information network is the cyber space that is shared by many information providers and information seekers. As the information in network is richer and richer, information seekers have required the nicely arranged network. Therefore, network must be in intelligent manner to use information easily. We develope the intelligent agent system that is composed of translation agent, robot agent, information retrieval agent, mediate agent, and personal secretary agent.