نتایج جستجو برای: discrete elements method

تعداد نتایج: 1982614  

2009
Pieter Ghysels Giovanni Samaey Paul Van Liedekerke Engelbert Tijskens Herman Ramon Dirk Roose P. Ghysels G. Samaey P. Van Liedekerke E. Tijskens H. Ramon D. Roose

We present a multiscale method for the simulation of large viscoelastic deformations and show its applicability to biological tissue such as plant tissue. At the microscopic level we use a particle method to model the geometrical structure and basic properties of individual cells. The cell fluid, modeled as a viscoelastic fluid by means of Smoothed Particle Hydrodynamics (SPH) is enclosed in an...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد - دانشکده جغرافیا 1392

the west of esfahan province, iran, is one of the most important agricultural areas throughout the country due to the climate variability and life-giving water of zayanderood river. rice is one of the major and economic crops in this area. the most important climatic elements in agricultural activities which should be considered include temperature, relative humidity, precipitation and wind. so...

Journal: :Comput. Graph. Forum 2013
Pierre-Edouard Landes Bruno Galerne Thomas Hurtut

We present a novel shape-aware method for synthesizing 2D and 3D discrete element textures consisting of collections of distinct vector graphics objects. Extending the long-proven point process framework, we propose a shape process, a novel stochastic model based on spatial measurements that fully take into account the geometry of the elements. We demonstrate that our approach is well-suited fo...

2009
F. Guillén González

In this talk we propose and analyze a fully discrete mixed scheme, by using continuous finite elements in space and a coupled linearized Euler type scheme in time, for solving a nematic liquid crystal model of the Eriksen-Leslie type by means of a penalized problem of the Ginzburg-Landau type. Conditional stability of this scheme is proved by means of a discrete version of the energy law establ...

2001
Idris A. Eckley Guy P. Nason

Discrete autocorrelation (a.c.) wavelets have recently been applied in the statistical analysis of locally stationary time series for local spectral modelling and estimation. This article proposes a fast recursive construction of the inner product matrix of discrete a.c. wavelets which is required by the statistical analysis. The recursion connects neighbouring elements on diagonals of the inne...

2006
Antoine Vacavant David Coeurjolly Laure Tougne

In this paper, we address the problem of vectorization of binary images on irregular isothetic grids. The representation of graphical elements by lines is common in document analysis, where images are digitized on (sometimes very-large scale) regular grids. Regardless of final application, we propose to first describe the topology of an irregular twodimensional object with its associated Reeb g...

Journal: :Periodica Polytechnica Civil Engineering 2007

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