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Han, M.; Yang, D.Y.; Yu, J., and Kim, J.W., 2017. Typhoon impact on a pure gravel beach as assessed through gravel movement and topographic change at Yeocha Beach, south coast of Korea. This study investigated sediment movement and topographic change using radio frequency identifier (RFID) tracers and real-time kinematic (RTK)-global positioning system (GPS) data to examine the response of a gravel beach under typhoon conditions. Yeocha Beach, the study site and a pure gravel beach, was affected by strong wind and waves produced by Typhoon Goni on 24-26 August 2015. On 26 August, the main direction of the tracer movement was toward the upper part of the beach and toward the west relative to the onshore-offshore and alongshore directions. The average movement distance of the tracers differed according to the insertion points. The tracers inserted in the beach face showed a longer average movement distance of 12.07 m compared with 1.89 m for those inserted in the storm berm. In addition, the tracers inserted in the beach face showed an average movement of 0.44 m in height toward the upper part of the beach. The result of topographic change showed that sedimentation was dominant within most parts of the beach. Moreover, this study clarified sediment movement patterns according to various patterns of localized topographic changes and tracer movement. This study investigated the relationship between tracer properties and movement distance and found that significant statistical differences did not occur under the typhoon conditions; thus, the beach gravel moved collectively rather than individually under strong wave energy conditions. In addition, 3 months after the typhoon, the beach recovered back to its original topography under normal wave conditions. The beach response and recovery indicate that the pure gravel beach exhibited an outstanding natural seawall effect. However, this study investigated the beach response based on a single typhoon; future research is necessary to understand the response under various environmental conditions. [ABSTRACT FROM AUTHOR]

The article presents a study on the sexual reproductive characteristics of Pteris vittata L. in soil culture. It discusses how it was conducted which involved two experiments that focused on the effect of storage time, collection time, and substrate sterilization methods on sexual reproductive efficiency. It details the results which reportedly revealed among other things that spores of P. vittata are still viable after months of storage. It also offers suggestions for its commercial production.

ABSTRACT Choi, J.Y.; Kim, S.H.; Won, E.-J.; Yang, D.B.; Chung, C.S.; Kim, K.; Choi, K.Y.; Ra, K.; Kim, K.-T.; Yim, J.Y.; Lim, C.W., and Hong, G.H., 2018. A Study of the Contaminated Sediment Management System in Korea, with Suggestions for Improvement. In: Shim, J.-S.; Chun, I., and Lim, H.S. (eds.), Proceedings from the International Coastal Symposium (ICS) 2018 (Busan, Republic of Korea). Journal of Coastal Research, Special Issue No. 85, pp. 1426–1430. Coconut Creek (Florida), ISSN 0749-0208. Coastal sediment management, particularly the remediation and sustainable use of dredged contaminated marine sediments, is a critical issue in Korea as it is around the world. Since 1988, the Korean Ministry of Oceans and Fisheries has been conducting projects to clean up contaminated marine sediments. The objective of this study was to analyze the management of Korea's coastal sediments and investigate how the Contaminated Sediment Management System (CSMS) could be improved, so as to strengthen the sustainability of the clean-up projects. The state of the CSMS was diagnosed and improvements were developed by reviewing relevant research, interviewing field experts, and holding meetings with researchers, specialists, and government officials. These improvements were aimed at 1) developing a sustainable and practical CSMS and 2) strengthening the responsibility of local governments for managing coastal pollution. [ABSTRACT FROM AUTHOR]

Choi, J.Y.; Kim, S.H.; Won, E.-J.; Yang, D.B.; Chung, C.S.; Kim, K.; Choi, K.Y.; Ra, K.; Kim, K.-T.; Yim, J.Y.; Lim, C.W., and Hong, G.H., 2018. A Study of the Contaminated Sediment Management System in Korea, with Suggestions for Improvement. In: Shim, J.-S.; Chun, I., and Lim, H.S. (eds.), Proceedings from the International Coastal Symposium (ICS) 2018 (Busan, Republic of Korea). Journal of Coastal Research, Special Issue No. 85, pp. 1426–1430. Coconut Creek (Florida), ISSN 0749-0208. Coastal sediment management, particularly the remediation and sustainable use of dredged contaminated marine sediments, is a critical issue in Korea as it is around the world. Since 1988, the Korean Ministry of Oceans and Fisheries has been conducting projects to clean up contaminated marine sediments. The objective of this study was to analyze the management of Korea's coastal sediments and investigate how the Contaminated Sediment Management System (CSMS) could be improved, so as to strengthen the sustainability of the clean-up projects. The state of the CSMS was diagnosed and improvements were developed by reviewing relevant research, interviewing field experts, and holding meetings with researchers, specialists, and government officials. These improvements were aimed at 1) developing a sustainable and practical CSMS and 2) strengthening the responsibility of local governments for managing coastal pollution. [ABSTRACT FROM AUTHOR]

Sang, Z.-x.; Fang, R.-c.; Du, Z.; Yang, D.-j.; Yan, J., and Lei, H., 2020. The power planning of interacted and interconnected microgrid in pelagic clustering islands based on energy storage vessel transport route. In: Liu, X. and Zhao, L. (eds.), Today's Modern Coastal Society: Technical and Sociological Aspects of Coastal Research. Journal of Coastal Research, Special Issue No. 111, pp. 172–177. Coconut Creek (Florida), ISSN 0749-0208. There is a lack of effective liaison among pelagic islands; however, an interconnection mode by submarine cables is not feasible or economical. In this paper, we propose to replace some of submarine cables with energy storage vessel (ESV) routes and establish a hybrid power transmission network based integrated energy system of pelagic clustering islands. First, an ESV route was modeled to analyze the transmission efficiency and cost. Then, a hybrid power transmission network planning model of the island integrated energy system was proposed based on multiscene generation and scene clustering. The objective function was the minimum overall cost considering the additional power supply cost under extreme weather scenario. The model was optimized by chaotic gravitational search algorithm. The feasibility and effectiveness of the proposed method are verified through simulation results. [ABSTRACT FROM AUTHOR]