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감자$\cdot$겹 둥근 무늬병에 대한 신살균제 효과 비교 시험
정봉조,이순형,Jung Bong Jo,Lee Soon Hyong 한국응용곤충학회 1963 한국식물보호학회지 Vol.2 No.-
1) 본시험은 1962년과 1963년에 감자 겹둥근 무되병에 대한 살균제 7종을 공시한 효과비교시험이다. 2) 본병을 방제학 위하여 Alternaria solani를 접종한 후 6월 초순부터 1주일간격으로 4회 살포함으로서 방제효과가 우수하였다. 약제살포구는 무살포구에 대하여 유의성이 있었고 특히 Dithane M45, Difolatan, Dithane M22는 효과가 좋았으며 세 약제간에는 유성이 없었다. 그 다음으로 볼드액살포로서도 상당히 효과가 양호하였다. 1. The trials were planned to test seven different fungicides for the control of Early blight of potato during the period of 1962 and 1963. 2. All of fungicides tested in the trials were considerably effective to control the disease, as the result of 4 applications which was done in one week intervals from early of June in 1963. All treatments were effective enough to make significant differences from the untreated. Especially, Dithyane M45, Difolatan and Dithane M22 showed satisfactory control even though no significant differences were obtained among them. Besides the three treatments, Bordeaux Mixture were relatively effective.
Demand/Effort모형의 수준결정을 위한 수리적 방법 연구
정봉조,장명순,김정룡,박재완,Chung, Bong-Jo,Jang, Myung-Soon,Kim, Jung-Young,Park, Jae-Wan 대한인간공학회 2005 大韓人間工學會誌 Vol.24 No.1
81.1% of traffic accidents is attributed to the drivers. In this regard, D/E model is a practical and effective method in terms of the cost and time in evaluating the road hazardousness. To examine the validity of the threshold values by the levels of demand We selected 10 subjects and collected their physiological signals while they were driving on Honam Highway (Jeonju ${\leftrighttarro}$ Hoideog section). Based on the collected data, the hazardous road condition was evaluated using the new threshold values of the effort level determined by cluster analysis. In applying the D/E model, a decision method based on the demand level was suggested, using a traffic accident prediction model. Additionally, the limit value of the effort level was determined using the drivers' physiological signal data collected at the highway. A comparison analysis of the two D/E models revealed no significant difference: The existing method and the clustering method determined 9 and 7 hazardous road zones, respectively, while actual traffic accidents were reported in 6 and 4 zones, respectively among the predicted road hazardous zones. However, the latter method suggested a more scientific and rational basis in determining the limit value of the Effort level. In conclusion, although D/E model has a great merit as a pioneering method to reflect human factors in evaluating the road hazardousness, it is believed that this method could be improved by a more dynamic method that considers the traffic conditions and the individual physiological signal of the drivers simultaneously in determining a better limit.
정봉조,Jung Bong Jo 한국응용곤충학회 1964 한국식물보호학회지 Vol.3 No.-
1, 본 시험은 2개년에 걸쳐(1963-1964) 부산에서 양파로균병방제를 위하여 신살균제 6종을 공시하여 종래에 사용하여 오던 석회보르도와 비교시험하였다. 2. 약제처리구는 무처리에 비하여 방제효과를 인정할 수 있었으며 특히 Difolatan과 Dithane M 45는 그 효과가 우수하였으며 Dithane M22, Dithane Z 78, Orthocide도 석회보르도보다 효과가 좋았으며 산키농은 석회보르도와 함께 전자에 비해 약간 효과가 떨어지는 것을 알 수 있었다. This experiment was compared Bordeaux mixture, which used to as good fungicide up to date, with new 6 fungicides for control of powdery mildew on onion from 1963 to 1864 in Pusan. In resulting treated blocks was better effect than untreated block, and specially Difolatan and Dithane M 45 was best. Dithane M 22, Dithane Z 78 and Orthocide was moderate but Sankinon and Bordeaux mixture was lower effect than formers.
장봉조,심재영,구정산,정대원,구교진,현창택,Jang, Bong-Jo,Shim, Jae-Young,Koo, Jeong-San,Jung, Dae-Won,Koo, Kyo-Jin,Hyun, Chang-Taek 한국건설관리학회 2007 건설관리 : 한국건설관리학회 학회지 Vol.8 No.1
공기지연은 건설공사에 있어서 가장 빈번하게 발생하는 클레임의 발생요인이다. 공기지연으로 인한 지체상금은 판결과정에 있어서 많은 분쟁을 불러일으키고 있다. 지체상금은 '손해배상의 예정'으로 실제 발주자가 입은 손실에 대한 보상액이 되어야 한다. 그러나 실제로는 계약 불이행에 대한 위약금의 형태로 적용되고 있다. 이러한 지체상금은 발주자의 실제 손실과 차이가 있으며, 수급자에게 과도한 부담으로 작용한다. 본 연구에서는 발주자의 실제 손실에 기반을 둔 지체상금 산정방법을 제안하고자 한다. The delay of construction is one of the most frequent and complicated elements of the claim. And the liquidated damages cause many disputes during the judgement. The liquidated damages should be a compensation for owner's substantial loss, but actually be applied as a damage for breach of contract. These damages are different from owner's loss and give constructors a excessive burden. So we need a more reasonable system than a lump application system. In this study, we make a Improvement System, that based on owner's substantial loss, and suggest the new liquidated damages calculation method.