• Korean Journal of Organic Agriculture
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• v.23 no.2
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• pp.347-357
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• 2015

This experiment was conducted to test the efficiency of environmentally friendly materials for controlling garlic leaf blight by Stemphylium botryosum. Fifty five kinds of environmental friendly control agents are obtained from commercial market and are tested for spore germination using 96 well plate and among them, five agents (copper-, sulfur-, medinal herb extract-, sulfur+sodium bicarbonate- and oligo chitosan based compound) are selected for field test from 2012 and 2013 year. With reference of 2012 year test result, copper and oligo chitosan based compounds are chosen as 2013 year test. When the first symptoms were appeared early May season and environmental friendly control agents are applied as prompt as possible, the control value of copper and oligo chitosan based agents are 54% and 90% respectively as compared to the occasion of chemical agent Antracol WP (propineb 70%) and yield of bulbs are increased by 16% and 34% against untreated control and marketable garlic bulb yield were 79% and 95% against Antracol WP treatment, respectively. From this result, oligo chitosan based compound can be a good organic control agent candidate for garlic leaf blight disease in organic garlic cultivation.

• The Science & Technology
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• v.1 no.1 s.1
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• pp.22-30
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• 1968

<차 례> 1. 서 론 과학기술과 경제 2. 과학기술의 현황 1)일반적 수준 2}과학기술행정, 예산, 제제도(공업, 표준화, 검사, 연구개발, 기술도입공업소유권) 3)업종별 산업기술 현황 3. 개방경제화와 기술혁신 1)예산의 과감한 확보 2)각종제도의 정비보완 3)기업의 새로운 생산조직 4. 과학기술계에 대한 제언

• 사료
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• s.56
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• pp.50-57
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• 2012

사료공업은 현대축산 수산양식업의 발전을 위한 기초산업이자 도시와 농촌주민에게 동물성 식품을 공급하는 영역에까지 영향을 미치는 민생산업이다. "12.5" 규획기간은 중국 특색 양식업의 현대화를 위한 중요한 시기이며, 사료공업강국을 건설하기 위한 핵심적 시기라고 할 수 있다. $\ll$국민경제 및 사회 발전 제12차 5개년 규획 강요 국민경제화사회발전제12개오년규획강요(國民經濟和社會發展第十二個五年規劃綱要)$\gg$와 $\ll$전국 농업 및 농촌경제 제12차 5개년 규획 전국농업화농촌경제제12개오년규획(全國農業和農村經齊第十二個五年規劃)$\gg$에 따라 '사료공업 발전 "12.5" 규획'을 제정하였다. 이에 본지는 한국농촌경제연구원에서 발표한 본 자료를 2회에 걸쳐 전재한다.

• Research in Plant Disease
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• v.15 no.3
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• pp.248-253
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• 2009

Chitosan has an antifungal activity and is widely used for control of various plant disease and plants growth in the field in Korea. Disease control efficacy of two preparations (SH-1, SH-2) of mixtures of high and low (chitooligosaccharide) molecular weight chitosan compounds against tomato leaf mold caused by Fulvia fulva was investigated under plastic greenhouse conditions. Both SH-1 and SH-2 formulations displayed potent disease control activity in two experiments. The protective activity of both preparations was comparable to synthetic thiophanate-M. The persistence activity of the formulations was sustained until 21 days after application. Effective concentration of the chtosan compounds for disease control was 1,200 mg a.i./L. In pot tests, chitosan preparations, at a concentration of 600 mg a.i./L, promoted plants growth. These results indicate that the chitosan preparations have a potential as an eco-friendly natural fungicide for the control of tomato leaf mold and plant growth regulator.

• Research in Plant Disease
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• v.17 no.2
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• pp.148-154
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• 2011

This study was conducted to control the seed borne pathogens (Alternaria spp.) of carrot and to examine the seed germination rate by using 13 environment friendly agricultural materials instead of conventional chemicals for organic cultivation. The growth inhibiting effects on pathogens showed the different responses according to each agricultural material and effective 7 materials against seed borne pathogens were selected. Among 7 materials, the carrot seeds sterilized with plant extracts, Tanger Stop and Land Saver were not germinated at all. The germination rate of seeds sterilized with other materials showed the similar levels with reference chemical (Benlate-T) and non-treated seeds. Infection rates of seeds sterilized with seaweed extract, Bellopper for controlling A. radicina and plant extract, Ssial-100 for A. dauci were similar or low infection rate compared with reference chemical. The germination rate and root length of seeds sterilized with Bellopper and Ssial-100 was similar or superior to those of chemical sterilized seeds. The optimal condition seemed to be a little bit different depending on the concentration of materials. As a result, the sterilization of carrot seeds by using the environment friendly materials could be effectively utilized as a technology to inhibit the infection of seed-borne pathogens.

• 한국방재학회:학술대회논문집
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• 2010.02a
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• pp.110-110
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• 2010

본 연구에서는 대규모 항만시설물을 계획함에 따라 발생될 수 있는 인근 소규모 어항의 안정성에 대하여 일예를 들어 검토하였다. 제주해군기지 건설로 인해 인근어항(강정항)의 기축조분 84m를 제외한 잔량분 126m에 대한 평면수정이 불가피할 것으로 판단됨에 따라 수치모형실험(SWAN)을 통해 강정항의 현 상태 및 기지건설 후의 항내파고 분포에 대하여 검토하였다. 또한 남방파제 잔량분이 미 시행됨에 따라 발생할 수 있는 항내정온도를 확보하기 위하여 대안을 연구한 결과 제주해군기지 서방파제 시점부에 파제제 50.0m를 설치함으로써 보다 효율적이고 경제적으로 인근어항(강정항)의 항내정온도를 크게 개선시킬 수 있을 것으로 판단된다.

• Journal of Arbitration Studies
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• v.17 no.1
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• pp.217-234
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• 2007

동북아시아 국가들은 세계 무역 및 투자에 중요한 역할을 담당하고 있다. 동북아시아 역내 및 역외 국가들과의 경제교류는 앞으로 계속 늘어날 것으로 전망되며, 이로 인한 국제상사분쟁은 국제상사중재 등 ADR에 의해 해결될 수밖에 없을 것이다. 동북아시아에서 ADR 제도가 발전되기 위해서는 무엇보다도 한국의 대한상사중재원, 북한의 조선국제무역중재위원회, 중국의 중국국제경재무역중재위원회, 일본의 일본상사중재협회, 러시아의 러시아상공회의소 부설 국제상사중재법정, 카자흐스탄의 카자흐스탄국제중재기관, 몽골국가중재법정 상호간의 중재 업무 전반에 관한 협력제제가 구축되어야 할 것이다. 국제상사중재에 관하여 동북아시아에 새로운 바람이 불고 있다. 경제자유구역 및 남북간 경제교류와 관련한 상사분쟁이 상사중재로 해결될 수 있는 법, 제도적 기반이 마련되었기 때문이다. 지난 해 한국에서는 대한상사중재원 주도하에 무역클레임 센서스가 실시되고 국제중재세미나가 개최되었으며 국제중재규칙이 제정(2007년도 2월 1일 시행 예정)된바 있다. 동북아시아 지역에서 국제상사중재제도가 발전되고 저변이 확대되기 위해서는 중재기관들 간의 협조체제가 구축되어야 할 것이다. 한편 한국도 동북아시아의 중재허브로 성장하기 위해서는 국제금융, M&A 등 중재 영역을 확대하고 경제자유구역 및 남북상사중재 등과 같은 새로운 영역에 대처를 잘 해야 할 것이다. 아울러 정부 당국의 재정적 지원과 행정적 배려도 수반되어야 할 것이다.

• Journal of Bio-Environment Control
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• v.22 no.4
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• pp.413-420
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• 2013

The purpose of this study was to evaluate the control efficacy of major environment-friendly control agents against powdery mildew, as affected by the application condition such as disease-developing stage and microclimate, as compared with the efficacy of pesticides in plug seedling of three Cucurbitaceae vegetables, including cucumber, melon, and oriental melon. Single or combined application of major six environment-friendly control agents was used in the experiment: two biofungicide (Ampelomyces quisqualis 94013 and Bacillus subtilis Y1336), two plant extracts (neem oil and extracts of Rheum undulatum), and two mineral materials (wettable sulfur powder and lime bordeaux mixture). These control agents were treated to the plug seedlings for preventing powdery mildew and curative applications for managing powdery mildew. In all treatments, the disease incidence declined as daily average temperatures increased to $30^{\circ}C$ for consecutive 6~8 days with maximum temperature over $40^{\circ}C$. In preventative application, the control efficacy against powdery mildew was the highest in the treatment of wettable sulfur powder, and lowest in the B. subtilis Y1336, with values of 20~40%. In cucumber seedlings, the preventive single application of neem oil or wettable sulfur powder was more effective than curative application of fungicides, while the control efficacy of these agents was similar to those of fungicides in melon seedlings. The single application of R. undulatum extracts was also effective in preventing the disease for both cucumber and melon seedlings, showing a higher control efficacy than those of biofungicides during seedling stage. The treatment of water spray was not effective and showed a higher disease incidence than the untreated control plot in the oriental melon and melon seedlings. The curative application with environment friendly control agents, after powdery mildew was first detected, could not successfully controlled the disease at the middle stage (5~10% of disease incidence) of disease development. The curative combined application of [R. undulatum extracts (1st application) + wettable sulfur powder (2nd) + neem oil (3rd)] showed the highest control efficacy among the other treatments, with control value over 80% at the early stage (less than 1% of disease incidence) of disease development.

• The Science & Technology
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• v.11 no.6 s.109
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• pp.40-41
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• 1978

산업경제의 지속적인 성장, 공산품의 국산화 촉진 및 수출진흥정책의 계속적인 추진에 따라 급증하는 산업기술 정보수요에 효과적으로 대처하기 위하여 국가과학기술정보유통제제 (National System for Scientific and Technological Information: NASSTI)를 구상해온 한국과학기술정보센터(KORSTIC, 소장 김두홍)는 이 체제확립의 일환으로 구체적인 추진계획을 다음과 같이 밝혔다.

• Journal of The Korean Association of Information Education
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• v.12 no.1
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• pp.23-32
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• 2008

This study was designed to create a situational and procedural simulation of web-courseware which will enhance students' self-directed learning styles during the economics class in elementary schools. When teaching the students how to be wise consumers, it is important to provide them with various experiences that will lead them to make active and rational decisions. Actual experiences are, however, rather limited in reality which consequently result in learning economics only vicariously at school. The purpose of the study was, therefore, to develop a courseware which allows the student to have indirect experiences through computer simulations. The courseware will not only assist the student in making decisions and taking actions appropriately during the various situations given in the program, but also overcome the limitations of the classroom setting by using the procedural simulation.