Recently, an indirect displacement estimation method using data fusion of acceleration and strain (i.e., acceleration-strain-based method) has been developed. This paper proposes an improved displacement estimation method that can be applied to more general types of bridges by building the mapping using the finite element model of the structure. An experimental validation of the proposed method was carried out on a prestressed concrete girder bridge, and the method provides the best estimate for dynamic displacements.

This study has been carried out to present the valuation system of soil carbon sequestration potentials of soil in accordance with the new climate change scenarios(RCP). For that, by analyzing variation of soil carbon of the each type of agricultural land use, it aims to develop technology to increase the amount of carbon emissions and sequestration. Among the factors which affects the estimation of determining the soil carbon model and influence power after the measurement on soil organic carbon, under the center of a causal relationship between the explanatory variables this study were investigated. Chemical fertilizers (NPK) decreased with increasing the amount of soil organic carbon and as with the first experimental results, when cultivating rice than pepper, the fact that soil organic carbon content increased has been found out. The higher the carbon dioxide concentration, the higher the amount of organic carbon in the soil and this result is reliable under a 10% significance level. On the other hand, soil organic carbon, humus carbon and hot water extractable carbon has been found out that was not affected the soils depth, sames as the result of the first year. The higher concentration of carbon dioxide, the higher carbon content of humus and hot water extractable carbon content. According to IPCC 2006 Guidelines and the new climate change scenario RCP 4.5 and the measurement results of the total amount of soil organic carbon to the crops due to abnormal climate weather, 1% increase in atmospheric carbon dioxide concentration was found to be small when compared to the growing rate of increasing 0.01058% of organic carbon in the soil.

Longshore current is main transportation mean causing movement of bed load and suspended particle in coastal waters, and effective measurement method and suitable equipment for shallow water coastal environment where is frequently exposed to atmosphere. Measurement equipment for longshore drift was designed and miniature model was applied to Gyeongpo beach in May and June, 2014. The equipment consists of three main elements, spheroid outer casing, spheroid inner casing, observation module equipped with GPS. Gyroscope principle was applied to observation module, and GPS receiver always can be directed upwards. Miniature models were installed along Gyeonpo beach, and it was well to track the flow of longshore current. This research described the design and function of the equipment and results of field experiments.

A object of this Experiment is to present a experimental method to verify the detection algorithm of abnormal behavior In order to achieve the desired, a cable stayed bridge model was prepared. The experiments lead to damage of stiffening girders and measuring this by changing the weight.

본 연구는 교량의 상시계측자료인 고유진동수 및 고유모드를 기준으로 계측기반모델을 구성하고, 구조해석을 수행하여 교량 공용상태에서 사장케이블 장력평가를 수행하였다. 케이블 설치 위치에 따라 하중유형별 케이블 장력이 다르다는 것을 알 수 있다. 고정하중과 활하중에 의한 케이블 계측장력은 케이블 설치위치에 따라 차이가 크지 않으나 설계하중을 적용한 해석결과보다 큰 값을 나타낸다. 계측기반모델에 대한 케이블장력분포는, 설계모델에 대한 장력보다 크지만, 계측장력과 유사한 분포를 나타낸다. 그러므로 장기거동을 고려하여 사장교 케이블설계는 계측기반모델의 해석결과를 반영할 필요가 있다. 이를 위하여 많은 계측자료를 이용한 장기거동 분석연구가 요구된다.

One of the most important processes to accurately predict structural responses is to evaluate accurate structural dynamic properties using finite element (FE) models. The analyzed structural dynamic properties usually show considerable discrepancies with the measured ones because structural details are commonly simplified in the FE models. To identify such discrepancies, FE models of them have been calibrated using the measured dynamic properties in previous researches. In this study, dynamic properties were measured for a historic cathedral and the FE model of it was calibrated using the measured results as a reference. Finally, a procedure of the FE model construction for masonry cathedral were tentatively proposed.

지난 20년 동안 수많은 정서지능(EI) 연구가 다양한 학문분야에서 시행되었다. 최근 스포츠심리학 분야에서도 EI 연구의 관심은 증가되고 있다. 그러나 대부분의 스포츠 EI 연구자들은 조직이나 교육상황에서 개발된 EI 모형과 측정을 사용하고 있다. 따라서 스포츠 EI에 대한 이론적 모형과 측정개발이 스포츠심리학 분야에 시급히 요구된다. 본 연구의 목적은 스포츠 정서지능(EI)의 개념적 모형을 가설적으로 설정하고, 스포츠 상황에서 문화적으로 적합하고 심리측정적으로 타당한 EI 측정을 탐색하는데 있었다. 구체적으로, 본 연구는 5개의 EI 주제에 대해 관심의 초점을 두고 논의를 전개했다: 1) 정서지능의 이론적 배경과 개념(모형), 2) 정서지능 측정의 내용과 방법, 3) 스포츠 EI 연구 고찰, 4) 스포츠 EI의 가설적 모형, 5) 스포츠 정서지능 측정 탐색. 전반적으로, 대부분의 EI 선행 연구들은 혼합 또는 능력 모형의 틀에서 EI의 구조를 설명하고 측정도구를 개발하고 있다. EI의 이론적 개념들을 토대로 다차원-위계적 스포츠 EI 모형이 제안되었다. 이 가설적 모형은 귀납적 방법을 통해 검증될 수 있으며, 스포츠 EI 측정개발의 기틀이 될 수 있다. 마지막으로, 본 연구는 문화적 편중성을 최소화시키는 스포츠 EI 측정의 내용 및 방법을 고찰하고, 효과적인 내적/외적 구인타당화 검증을 위한 심리측정적 방법을 제시했다.