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황대용,류진춘,하태일 慶北大學校農業科學技術硏究所 1998 慶北大農學誌 Vol.16 No.-
As a result of the execution of the import liberalization and local autonomy with WTO system launching, centralized rural extension service converted to localized rural extension service. This advent of globalization and localization era affects our over all agricultural condition, moreover the duty and role of rural extension organization which take complete of rural extension, is compelled to diversified and specified technology. In this study, first we will investigate the change of agricultural, rural community, and local rural extension service in globalization and localization era. Second we will analyze the confronted problems of local rural extension service. With this study's outcome for basis, we will present new role and direction of local rural extension service which can contribute to local agricultural development.
황석주,김영운,오성광,김대영,임선재,박승욱,이두용,이헌영 충남대학교 의과대학 지역사회의학연구소 1995 충남의대잡지 Vol.22 No.2
Pancreatic cystadenoma is very rare, slow growing tumor and generally preoperative differential diagnosis may be difficult. A 43-year-old female was admitted to our hospital with the complaint of abdominal discomfort in the epigastrium for about preceeding 5 years. Ultrasonography and Computed tomography were performed. When endoscopic retrograde cholangio-pancreatogram was performed, displacement of distal pancreatic duct by huge mass was noted and injected dye was drained irregulary into the cavity of mass. Distal pancreatectomy was performed with splenectomy. The mass size of distal pancreas was 7X4cm, and the cyst contained with yellowish thick mucoid fluid. Diagnosis was confirmed the mutinous cystadenoma of the pancreas on histologic examination.
저수지 경관자원을 활용한 야외수영장 개발사업의 투자효과 분석
권용대,황준우 충남대학교 농업과학연구소 2007 농업과학연구 Vol.34 No.1
This study aimed at analyzing the economic effect of outdoor swimming pool investment using the reservoir's amenity resources. We focused on the identification of the amenity value of reservoir in the rural area and the economic evaluation for establishing infrastructure such as swimming pool based on the reservoir's landscape value. To this end, we have conducted the case study on the outdoor swimming pool in connection with Go-Bok reservoir in Yeon-Gi county, Chungnam Province and estimated its income effect on the rural community by cost-benefit analysis method. The research results are as follows: 1) Outdoor swimming pool participants, with 11,581 visitors totaled to Yeon-gi county every year, was estimated to spend the worth of 58,446 thousand won paid for the agricultural product purchase and etc. 2) Internal rate return of the outdoor swimming pool project was estimated to 16.19%, which considered to be economically feasible comparing with 10% of current capital opportunity cost. Based on the results of this study, we suggest the following strategies for development of amenity value of swimming pool in connected with the reservoir: 1) Reservoir amenities should be well preserved even after construction of swimming pool lest losing amenity values while managing the facilities. 2) Measures to increase the marketing value of intangible reservoir's amenities through promotion should be established. 3) Effective program for more visitors with longer staying and more agricultural products sales should be designed.
재조합 효모로부터 생산된 glucose oxidase의 정제
이대희,이승철,황용일 Institute of Genetic Engineering Changwon National 1999 Gene and Protein Vol.3 No.1
The yeast expression vector, pGAL-GO02, that consist of a GAL10 promoter, α-amylase signal sequence, mature glucose oxidase(GOD) coding sequence and glucose oxidase terminator, was used for production of glucose oxidase from Aspergillus niger. The overproduction and high level secretion of GOD from A. niger in Saccharomyces cerevisiae 2805 was carried out by cloning GOD gene. Transformed S. cerevisiae with pGAL-GO02 produced 8.7unit/ml of GOD that is c.a. 5 times higher than 1.7unit/ml in A. niger on YPDG media. For isolation and purification of secreted GOD, culture broth was microfiltrated. The microfiltrated GOD was further purified by dialysis and ion-exchange chromatography. The final product is more than 95% pure and the specific activity was 8.6unit/mg that is increased about 4.7-fold than 1.83unit/mg in crude extract. Molecular weight of the purified GOD was c.a. 122 kDa by hyperglycosylation in yeast and molecular weight of treated GOD with Endoglycosidase H is 69 kDa.
李鎔國,李大源,黃憲,吳永鎭 成均館大學校 科學技術硏究所 1992 論文集 Vol.43 No.2
Planting, transplanting, and harvesting are important processes for the successful production of farm products in Korea because those require the short term high labor intensity. In the automatic production system of the field or the green house, planting is the first process required to be automated considering subsequent operations such as transpalnting and harvesting. A proto type experimintal robotized seeder was designed and built to handle various sizes and shape of seeds. The developed seeder is automatically controlled with one chip micro-controller. System is composed of the transfer arm, pecker, and the equipments integrated with sensor such as hopper, feeder, counter, and shutter. System allows to control the number of seeds to be planted. Results of the developed experimental robotized seeder are as following : 1. For the adequate feeding and counting of seeds, components such as hopper, feeder, counter, and shutter were designed and built. 2. Kinematic motion of the transfer arm was analyzed and designed. 3. Picker was designed to dig and drop seeds into the soil by the open and close action of the bottom gate controlled by DC solenoid. Digging depth of the pecker was controlled by the transfer arm.
窒素, 燐酸 및 加里의 施肥水準이 藥用作物 仙鶴草(Agrimonia pilosa L.)의 生育 및 收量에 미치는 影響
김현경,황필성,이용호,김기영,정대수 東亞大學校 大學院 2000 大學院論文集 Vol.25 No.-
This study was carried out to determine the effect of various fertilizer levels on the growth and yield of Agrimony. this experiment was conducted for 2years from 1998 to 1999 in Medicinal Plant Experiment Station, Kyungnam ARES. The results obtainned were summarized as follows : 1. The growth characteristics such as plant height, tillers and leaf numbers were more increased at 22-10-10 plot than of other fertilizer levels. 2. Variations of percent flowering of Agrimonia pilosa L. treated with different fertilizer levels were more increased at 22-10-10 plot than of other fertilizer levels. 3. Yield per 10a of Agrimonia pilosa L., Fresh weight was 1,500kg in 22-10-10 plot, and 243kg in non-treatment plot. The dry weight was 736kg in 22-10-10 plot, and 96kg in non-treatment plot. Yield of Seed and Fruit following to different application levels was highest at the fertilizing plot of N, P2O5, K2O=22-10-10.
위태석,황대용,최정숙,정현영 한국식품유통학회 2004 食品流通硏究 Vol.21 No.2
This study deals with school food service from the consumption extension of our agricultural products and the maximization of the educational effects point of view. By consuming regional agricultural products for school meals, the dietary life and agricultural education combined knowledge with behavior could be implemented. Therefore, to propel a "Movement of Jisanjiso", regional agricultural structure and marketing structure should be established and the effective support program of central government and autonomy also should be prepared.