... ABSTRACT In this paper image-processing techniques for the study of cavitation types associated with erosion of marine propellers are presented. Blade root cavitation erosion was documented on three model-scale controllable pitch propellers using a combination of soft-paint techniques and high...

... coastline natural language mauritania government information retrieval information management machine learning shoreline nouakchott autonomy port erosion algorithm accuracy coastline extraction africa government artificial intelligence climate change extraction platform t-shaped...

... introduced as the main host of the coastal changes. INTRODUCTION Climate change-driven forces are affecting and projected to worsen the current problems of coastal zones. The current issues of coastal ecosystems and developed infrastructures which become visible as water pollution, erosion or accretion...

... close parts of the carcass layer causing erosion, leading to thinning of the steel strip of the carcass layer and reducing the pressure collapse resistance of the carcass layer. The carcass layer will have serious consequences in the event of a collapse failure. The collapse pressure of flexible pipes...

... development. The approach is implemented in a typical eroded coast in Hangzhou Bay and the effects of the engineering design are simulated by numerical model TELEMAC. It is shown that after the project is completed, the previous erosion state in the local area is radically altered and a tidal flat of 90m...

... ABSTRACT Internal erosion is a common damage form occurred in extensive gravel soils. During the erosion process, the mechanism of particle deposition exists, but is difficult to survey or evaluate. In this research, first, the deposition rate of transported soils was studied, and the modified...

..., crest width and relative submerged depth of the permeable submerged breakwater on beach erosion is discussed. The results show that the submerged breakwater with a bigger crest width in the middle position has the better protection effect for preventing beach erosion, while the absolute wave height...

.... frequency thickness vegetation china dune transmission coefficient wave energy wave attenuation sustainability engineering water depth wd 0 scenario social responsibility experimental observation dissipation coefficient coefficient erosion sandbar crest Proceedings of the Thirty-first...

... on the JDS beach, artificially increase the amount of source of sand from JDS and JYNS to alleviate the river regime problems of beach erosion and channeling development is useful. Studies have shown that using the method of dumping mud to increase sand sources for beach protection on the JDS beach...

..., the erosion and deposition process of the sediment on top of caisson for an subsea production system were simulated. The results show that the backfilled soil with the median particle size of 0.2mm can be washed away to expose the whole manhole when the buried depth is 0.5 and 1 m, and the manhole area can...

.... Salama, MM (2000). An alternative to API 14E erosional velocity limits for sand-laden fluids , J Energy Resour Technol, 122(2), 71- 77. Santos, G (2002). Effect of sand distribution on erosion and correlation between acoustic sand monitor and erosion test in annular multiphase flow , MS Thesis...

... during storm conditions, with berm retreat and sub-tidal zone accumulation. The berm retreat of profile 2 is 8.5m, and 3.5m for profile 4. (2) During mild wave conditions, erosion mainly occurs 150m to 200m offshore in the four profiles, and eroded sediment are transported onshore. The erosion depth...

... several strong typhoons between July and October. We can monitor the shape changing by UAV and can do research on the saltmarsh wetland vegetation, the external form, erosion and deposition and so on to understand the shaping function by the extreme weather event on the intertidal mudflats in a short time...

... ABSTRACT Coastal erosion processes are often due to inappropriate coastal defense strategies. The construction of infrastructures that interfere with the coastal circulation and the sediment transport along the coast (piers, docks, etc.), the destruction of the dunes and other anthropogenic...

... ABSTRACT The characteristics of a headland bay coast are quite distinguished from that of a straight-line coast in terms of landform-dynamics. The main differences are the alongshore variations in the erosion and accretion processes. This paper analyzed measurements of cross-shore profiles...

... behind detached breakwater which leads to the recovery process of coastal erosion (mangrove replanting activity). This paper discusses the sediment grain size distribution behind detached breakwaters from the assessment of the field activity and numerical approach. The existing detached breakwater...

... in plunging type. The cross-shore profile of sandbar has evolved significantly from a symmetrical shape to a highly asymmetrical shape with a steep landward slope and a mild seaward slope, due to erosion on the seaward slope and siltation on the landward slope in strong wave conditions. Meanwhile, the sandbar...

..., and that the change of the break-point bar, amount of moveable sediment, and bathymetry lead to variable morphological change. INTRODUCTION Gravel beaches are primarily located in rough wave environments. The frequent occurrence of storm waves has the direct consequence of beach erosion and rapidly deforms...

... ABSTRACT The research on the effect of coastal facilities for protecting an estuary from channel blockage and a coast from beach erosion by waves demands to understand wave propagation, a nearshore current and sediment transportation. The purpose of this research is to evaluate the effect...

...Effects of Erosion Control Structures on Shoreline Evolution of the Tainan Gold Coast, Taiwan Hsien-Kuo Chang1, Feng-Chun Tsai1, Wei-Wei Chen1, Jin-Cheng Liou1 and Shao-Gu Kuo2 1Department of Civil Engineering, National Chiao Tung University, Hsin Chu City, Taiwan. 2 Harbor & Coastal Engineering...