..., and the fiber particles are arranged like a string wrapping the rubbles. The deformation of the model on rubble structure under wave action is computed by a combination use of two numerical models: CADMAS-SURF and Discrete Element Method (DEM). The model input parameters are optimized for reproducing...

... ABSTRACT An Unmanned Aerial Vehicle (UAV)-based system was developed to acquire a digital elevation model (DEM) of exposed tidal flats based on the structure from motion (SfM) algorithm. Global Position System-Real Time Kinematic (GPS-RTK) was utilized to measure the underwater portion...

... weather event are paid too little attention on. boundary saltmarsh wetland gcp deposition spartina study area uav-based short-term variation observation erosion photogrammetry sfm algorithm artificial intelligence variation algorithm orthographic image dem storm tide elevation...

... of Hydrology and Water Resources, Hohai University Nanjing, Jiangsu Province, China ABSTRACT In this paper, a composite waterline method of constructing an optimal digital elevation model (DEM) of tidal flats of Radial Sand Ridges (RSRs) areas using satellite imagery and hydrodynamic modelling was described...

... different reaction rate coal gasification individual coal particle coal particle catalyst aggregation reaction model dem gasification particle contour length reaction tube reactor interaction conversion discrete element method reaction rate small coal particle Catalytic Coal...

...Assessing Rockfall Hazards Using a Three-Dimensional Numerical Model Based on High Resolution DEM Cheng-Yu Ku Department of Harbor and River Engineering, National Taiwan Ocean University. Keelung, TAIWAN, China ABSTRACT This paper presents the development of a three-dimensional numerical model...

... ABSTRACT: Displacement of armor blocks on submerged breakwaters is computed with Discrete Element Method (DEM). The shape of the armor block is modeled as the coupling of nine spheres. The wave force acting on the armor blocks are estimated by Morison-type Formula using the water particle...

... ore pressure by utilizing the distinct element method (DEM) that can track the behavior of individual ore particles. We developed the calculation program considering the coupling effect of ore particle motion and the ship structure deformation utilizing DEM and FEM. At first, the accuracy...

... The bearing mechanism of the timber pile has not been clarified in many ways. In this paper, vertical loading analysis of tapered timber piles is carried out by using two-dimensional distinct element method (DEM). It is considered that DEM is the most appropriate analysis method that simulates...

... increment stability deformation dem size material mound submerged structure displacement increment contact judgment coastal engineering equation calculation sectional deformation wave force tangential direction computation interaction numerical analysis In the most...

... on Marine Structures", planned by the Japan Ocean Industries Association (JOIA) and funded by the Ministry of International Trade and Industry. To trace the process behind successive ice-failure against a structure, distinct element methods (DEM) have been adopted taking advantage of their applicability...