Browsing by Subject "Computational methods"
Now showing items 120 of 23

Bayesian uncertainty quantification and propagation in molecular dynamics simulations
(2012)A comprehensive Bayesian probabilistic framework is developed for quantifying and calibrating the uncertainties in the parameters of the models (e.g. forcefield potentials) involved in molecular dynamics (MD) simulations ... 
Carrier assignment algorithms for OFDMbased multicarrier wireless networks with channel adaptation
(2008)We study carrier assignment in a singlecell multiuser OFDM multicarrier system so as to satisfy user rate requirements with minimal resources. Different users experience different quality in different carriers due to ... 
Design and assessment of steel and steelconcrete composite structures: Efficacy of EN1998 design procedure
(2013)Design codes for seismic constructions allow the realization of structures able to dissipate energy through cyclic plastic deformations localized in specific zones, selected to involve the largest number of structural ... 
Experimental and numerical study of the behaviour of high dissipation metallic devices for the strengthening of existing structures
(2011)The use of steel bracing systems for the strengthening of existing reinforced concrete (RC) frames may lead to increase of both strength and stiffness. However, in most of the cases the main target is the increase of the ... 
Finite element analysis of buried steel pipelines under strikeslip fault displacements
(2011)The present paper investigates the mechanical behavior of buried steel pipelines, crossing active strikeslip tectonic faults. The fault plane is vertical and crosses the pipeline axis at a certain angle. The interacting ... 
Finite element model validation and predictions using dynamic reduction techniques
(2011)Finite element (FE) model updating and validation techniques are formulated as single and multiobjective optimization problems. A multiobjective optimization framework results in multiple Pareto optimal models that are ... 
FUllscale shake table experiments and vibration tests for assessing the effectiveness of textile materials for retrofitting masonry buildings
(2011)Fullscale shake table seismic experiments and low amplitude vibration tests on a masonry building are carried out to assess its seismic performance as well as study the effectiveness of a new textile material for retrofitting ... 
Improved genetic algorithms and list scheduling techniques for independent task scheduling in distributed systems
(2007)Given a set of tasks with certain characteristics, e.g., data size, estimated execution time and a set of processing nodes with their own parameters, the goal of task scheduling is to allocate tasks at nodes so that the ... 
Joint estimation of states and input in linear structural dynamics
(2011)The problem of jointly estimating the input forces and states of a structure from a limited number of acceleration measurements is addressed. Utilizing a modelbased joint inputstate estimation algorithm originally developed ... 
A lowpower VLSI architecture for intra and inter prediction in H.264
(2006)The H.264 video coding standard can achieve considerably higher coding efficiency than previous standards. The keys to this high code efficiency are mainly the two prediction modes (Intra & Inter) provided by the standard. ... 
On the evaluation of the MD passive WDF discretization method for a flow through cylinder
(2000)In this paper a complete algorithm is developed to evaluate the multidimensional (MD) wave digital filter (WDF) method for the numerical integration of nonlinear (NL) partial differential equations (PDEs), and particularly ... 
On the seismic behaviour and design of liquid storage tanks
(2011)The paper examines some special issues on the structural behaviour of uprightcylindrical liquid storage tanks, which are widely used in industrial facilities and for water storage. Two main design standards are considered: ... 
Railwayinduced ground vibrations in the presence of local track irregularities and wheel flats
(2015)Rapid growth in railway infrastructure has led to numerous environmental technical challenges. This includes groundborne vibration, which is becoming an increasing problem, particularly in urban environments. A common ... 
Riccati equation solution method for the computation of the extreme solutions of X + A* X1 A = Q and X  A* X1 A = Q
(2009)Algebraic and recursive methods for computing the extreme solutions of the matrix equations X + A* X1 A = Q and X  A* X 1 A = Q are presented in this paper. The proposed algorithms are based on the solution of the ... 
Scheduling independent tasks in heterogeneous environments under communication constraints
(2006)With the advent of the Grid, task scheduling in heterogeneous environments becomes more and more important. Of particular interest is the fact that especially in scientific experiments a non negligible amount of data must ... 
Seismic analysis and design of industrial pressure vessels
(2011)The present paper focuses on the seismic analysis and design of horizontalcylindrical and verticalcylindrical pressure vessels. First, a comparison of the seismic provisions in ASME B&PV code and in EN 134453 is conducted ... 
Seismic strength evaluation of reinforced concrete shear walls with cracks, using the notion of fractal geometry
(2011)Shear walls play an important role to the seismic strength of modern seismic resistant structures. They are designed so that they have significant bending and shear strengths and ductility. However, existing structures ... 
Simulation of industrial elbow response under strong cyclic loading
(2011)Elbow components are widely used in industrial facilities as parts of piping/tubing systems. Their performance under severe loading conditions may be critical for the structural integrity of an industrial facility In the ... 
Simulation of intercritical annealing in lowalloy TRIP steels
(2000)A coupled thermodynamic/kinetic calculation of austenite formation during intercritical annealing of lowalloy TRIP steels is presented. The simulation was performed with the use of Dictra computational kinetics software, ... 
Structural optimization of a wing body with uncertain aerodynamic loads
(2015)An algorithm for the structural optimization of wing body structures is presented in this paper. The structural analysis for the computation of displacements and stresses within the wing body is based on a finite volume ...