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        검색결과 5

        1.
        2017.10 구독 인증기관·개인회원 무료
        One of the most innovative approaches for maintaining and rehabilitating the Seoul pavement is to develop and implement the maintenance of pavement under the pavement management system (PMS). This paper documents result of the survey on PMS used in Seoul. This model is uses the theory to survey the condition of the pavement ,An index called the Distress Manifesto Index (DMI) is define as used to measure the pavement distress condition of the Seoul pavement. And there is Riding Condition Index (RCI) is to define the comfort of driver who is traveling on the Seoul pavement. Pavement condition index is defined as used to evaluate pavement condition. The cost effective PMS is possible only when maintenance requirement are identified at right time with realistic prediction of overall pavement condition. For Seoul, several survey are used in order to management decisions such as Pavement Serviceability Index (PSI), Surface Condition Ratting (SCR), and Pavement Condition Rating (PCR) etc. the goal of this paper is to evaluate the condition of pavement to facilitate a better understanding of the opportunities to augment the current framework while remaining consistent with the aims of moving ahead for progress in 21stcentury. This research is based on the performance of the asphalt concrete pavement data of Seoul Pavement. Pavement are divided into three classes Class 1 consist of 10-7 SPI result data ,that the pavement is in good condition. Class 2 consist of 6.99-4.0 SPI result data , that the pavement is in average condition. Class 3 consist of 3.99-0.00 PCI result data, that the pavement is in bad condition and need to repair immediately. the performance data is from Dongsomoonlo(28) it consist of Rutting ,Cracking, and IRI data.
        2.
        2015.04 구독 인증기관·개인회원 무료
        꽃노랑총채벌래[Frakliniella occidentalis (Pergande) (Thysanoptera: Thripidae)]와 대만총채벌레[F. intonsa (Trybom)]는 주로 작물의 꽃에 서식하는 해충이다. 2012-2014년 안동시 송천동 딸기하우스와 안동대 소재 고추포장에서 각각 끈끈이 트랩 설치와 고추꽃을 수거하여 총채벌레 밀도 변동을 기록하였다. 딸기와 고추에서 모두 대만총채벌레가 꽃노랑총채벌레보다 각각 14-35배와 6-121배 더 많이 기록되었다. 이 현상을 설명할 수 있는 이유로 두 종의 살충제에 대한 감수성차이, 온습도와 같은 환경적인 요인, 종간의 간섭경쟁을 제시하였다.