본 연구에서는 저온 소성 굴 패각의 재활용을 위한 기초적 연구로서 메조코즘 실험을 통해 저온 소성 굴 패각의 피복에 따른 연안 오염 퇴적물의 성상 변화를 조사하였다. 이를 위해 350 °C에서 소성시킨 굴 패각을 연안 오염 퇴적물에 피복하여 직상수와 간극수의 성상변화를 분석하는 메조코즘 실험을 수행하였다. 실험 결과, 굴 패각의 피복에 의해 수층과 퇴적층이 분리되었기 때문에 직상수의 산화 환원전위(ORP) 증가 및 DIN 중의 NH3-N의 비율의 감소가 실험구에서 관측되었다. 실험구의 DIP의 농도는 대조구와 비교하여 유의한 차이를 확인하기 어려웠다. 굴 패각의 피복에 의한 퇴적물의 총유기탄소(TOC)는 감소하였으며, 산휘발성황화물(AVS)은 저온 소성 굴 패각의 황화물 흡착 능력으로 인해 최대 50%까지 감소한 것으로 확인되었다. 본 연구의 결과로부터 저온 소성 굴 패각은 연안 오염 퇴적물의 정화를 위해 이용될 수 있는 재료인 것으로 결론 지을 수 있다.

Even in the business-to-business(B2B) markets, service quality is becoming very important factor which determines success or failure of the long-term business relationship. Considering that most previous researches about service quality were conducted in the business-to-consumer (B2C) area, this study conceptualizes the various quality aspects of service that are considered in B2B market and proposes B-SERVQUAL which is the detailed quality measurement scale of B2B service. Our study aims to reveal how such recognized service quality influences on realizing the relationship between the customer and the supplier. We began this research with two main objectives: (1) develop the service quality scale to facilitate assessments of B2B service quality and (2) investigate the structural model which deals with the relation between the service quality and business relationship performance. Service quality has a positive effect on relationship bonding, indicating that the superior service quality of service providers leads relationship bonding with buyers. Five dimensions considered in this study bring not only structural bond but also the social bond that refers to the emotional bonding. Especially, we assumed that the empathy quality, a human factor in service quality, plays an important role in binding sellers and buyers personally and emotionally. Technical quality and the process quality related to service delivery are closely associated with the technical level of the service provided, so the service quality structurally binds the relationship between companies. In addition, service quality has a greater effect on structural bond than social bond, which implies that service quality is emphasized as core elements that bring economic, strategic, technical, and organizational benefits in B2B trading rather than be seen as a catalyst to accelerate trading or supplementary elements to the products. Structural bond in relationship bonding is an antecedent of social bond. Relationship bonding has been studied in 2 categories traditionally. This study could identify a casual relation between them. The findings from the study demonstrate that the structural bond is developed when clear economic and managerial advantages exist for buyers, and then the social bond is formed based upon this. In other words, structural bond is a positive predictor of social bond or emotional bond. As suggested earlier, service quality has a greater effect on structural bond than social bond, which supports a structural casual relation in which the structural bond is accomplished first through service and then, based upon this, social bond is accomplished. Commitment appeared to be an important factor that has a positive effect on relationship performance, which demonstrates the experience and the reduction of management cost through commitment is the antecedent that brings the relationship performance which is defined as the degree of the effectiveness and efficiency from mutual organization exchange activities. Managerial implications and limitations of the study were also discussed in detail.

In this study, an analysis were conducted to utilize the thermal infrared image using drone to present the temperature correction method of thermal infrared image and the thermal environment by the type of land cladding. The analysis was applied to the temperature correction of the thermal infrared image and total eight thermal infrared images were produced based on the land surface temperature. The thermal infrared image compared accuracy through RMSE calculation. Based on the result of RMSE, the thermal infrared image corrected by the land surface temperature was relatively accurate and contained at 2.26 to 3.58. According to the results, it is expected that the aggregation and waters will perform the functions of the green park sufficiently to improve the thermal comfort and improve the microclimate stability using the thermal infrared image and the reclassified land cover map. The results of this study obtained by Drone and the usability of the drone thermal infrared image in the detection of the thermal environment. Finally, it is expected to contribute to the improvement and management of the thermal environment in the city by being used as a basic data for the improvement and management policy of the thermal environment. Moreover, the macro view is expected to contribute to the mitigation of urban temperature reduction and heat island.