Now showing items 1-20 of 205

• A Bicriteria Simulated Annealing Algorithm for Scheduling Jobs on Parallel Machines with Sequence Dependent Setup Times ﻿

(Universitat Politècnica de Catalunya, 2008-09)
Master thesis (pre-Bologna period)
Open Access
The study considers the scheduling problem of identical parallel machines subject to minimization of the maximum completion time and the maximum tardiness expressed in a linear convex objective function. The maximum ...
• A continuous-discontinous model for softening and cracking based on non-local displacements ﻿

(2008)
Conference report
Open Access
A continuous-discontinuous model to simulate numerically an entire failure process is presented. Crack inception and its propagation is modelled by means of a gradient non-local model based on non-local displacements. To ...
• A Kalman filter approach for the estimation of time dependent OD matrices exploiting bluetooth traffic data collection ﻿

(2012)
Conference report
Open Access
Time-Dependent Origin-Destination (OD) matrices are a key input to Dynamic Traffic Models, microscopic and mesoscopic traffic simulators are relevant examples of such models, traditionally used to assist in the design and ...
• A Kalman-filter approach for dynamic OD estimation in corridors based on bluetooth and Wi-Fi data collection ﻿

(2010)
Conference report
Open Access
From the point of view of the information supplied by an ATIS to the motorists entering a freeway of one of the most relevant is the Forecasted Travel Time, that is the expected travel time that they will experience when ...
• A level-set aided single-phase model for the numerical simulation of free-surface flow on unstructured meshes ﻿

(Elsevier, 2016-11-25)
Article
Open Access
A new single-phase scheme for the numerical simulation of free-surface problems on 3-D unstructured meshes is presented. The flow field is obtained from the discrete solution of the incompressible Navier-Stokes equations, ...
• A level-set method for thermal motion of bubbles and droplets ﻿

(Institute of Physics (IOP), 2016)
Conference report
Open Access
A conservative level-set model for direct simulation of two-phase flows with thermocapillary effects at dynamically deformable interface is presented. The Navier-Stokes equations coupled with the energy conservation equation ...
• A novel approach for hybrid performance modelling and prediction of large-scale computing systems ﻿

(2009)
Article
Restricted access - publisher's policy
We present a novel approach for hybrid performance modeling and prediction of large-scale parallel and distributed computing systems, which combines mathematical modeling and discrete-event simulation. We use mathematical ...
• A novel model to predict a slap avalanche configuration using m:n-CAk cellular automata ﻿

(Elsevier, 2010-08-23)
Article
Restricted access - publisher's policy
The paper introduces a novel method to represent slap avalanche phenomena. The model is based on a cellular automaton generalization named m:n-$CA^k$. This generalization allows the use of different layers in a single ...
• A Novel PMSM Hybrid Sensorless Control Strategy for EV Applications Based on PLL and HFI ﻿

(2016)
Número de revista
Open Access
In this paper, a novel hybrid sensorless control strategy for Permanent Magnet Synchronous Machine (PMSM) drives applied to Electric Vehicles (EV) is presented. This sensorless strategy covers the EV full speed range and ...
• A simulation study of the fleet sizing problem arising in offshore anchor handling operations ﻿

(Elsevier, 2010-05)
Article
Restricted access - publisher's policy
A fleet sizing problem arising in anchor handling operations related to movement of offshore mobile units is presented in this paper. Typically, the intensity of these operations is unevenly spread throughout the year. ...
• A simulation-based approach for solving the flowshop problem ﻿

(2010)
Conference lecture
Open Access
A simulation-based algorithm for the Permutation Flowshop Sequencing Problem (PFSP) is presented. The algorithm uses Monte Carlo Simulation and a discrete version of the triangular distribution to incorporate a randomness ...
• Activity modes selection for project crashing through deterministic simulation ﻿

(School of Industrial and Aeronautic Engineering of Terrassa (ETSEIAT). Universitat Politècnica de Catalunya (UPC), 2011-12)
Article
Open Access
Purpose: The time-cost trade-off problem addressed by CPM-based analytical approaches, assume unlimited resources and the existence of a continuous time-cost function. However, given the discrete nature of most resources, ...
• An XFEM/CZM implementation for massively parallel simulations of composites fracture ﻿

(Elsevier, 2015-07)
Article
Open Access
Because of their widely generalized use in many industries, composites are the subject of many research campaigns. More particularly, the development of both accurate and flexible numerical models able to capture their ...
• Analysis and RTL correlation of instruction set simulators for automotive microcontroller robustness verification ﻿

(Institute of Electrical and Electronics Engineers (IEEE), 2015)
Conference report
Open Access
Increasingly complex microcontroller designs for safety-relevant automotive systems require the adoption of new methods and tools to enable a cost-effective verification of their robustness. In particular, costs associated ...
• Analysis of applications to improve the energy savings in residential buildings based on Systemic Quality Model ﻿

(2016-10-19)
Article
Open Access
Creating a definition of the features and the architecture of a new Energy Management Software (EMS) is complex because different professionals will be involved in creating that definition and in using the tool. To simplify ...
• Analysis of critical machine reliability in manufacturing cells ﻿

(OmniaScience, 2019-04)
Article
Open Access
Purpose: In an increasingly competitive business environment, machine reliability problem merits special attention in operations of manufacturing cells. This is mainly due to flow line nature of the cellular layout, ...
• Análisis, diseño e implementación de una herramienta para valorar el estrés producido por la inserción de drones en el espacio aéreo de un controlador ﻿

(Universitat Politècnica de Catalunya, 2016-01-18)
Master thesis (pre-Bologna period)
Open Access
The research group ICARUS of the UPC has developed a simulation environment in which a ground station of a drone communicates with the usual work stations professional of the air traffic controllers and all related to a ...
• Assessment of LES techniques for mitigating the Grey Area in DDES models ﻿

(2019)
Conference report
Open Access
The slow RANS-LES transition is a well-known shortcoming in hybrid turbulence models such as DelayedDetached Eddy Simulation (DDES). The present work assesses the feasibility of 2D sensitive LES models for naturally ...
• Attribution of extreme weather and climate events overestimated by unreliable climate simulations ﻿

(American Geophysical Union (AGU), 2016-03-16)
Article
Open Access
Event attribution aims to estimate the role of an external driver after the occurrence of an extreme weather and climate event by comparing the probability that the event occurs in two counterfactual worlds. These ...
• Automatic drone demand generation and evaluation ﻿

(Universitat Politècnica de Catalunya, 2017-09-08)
Bachelor thesis
Open Access
This project consists in building a drone traffic generator capable of spawning random operations in a country. This document provides the guidelines to generate the operations taking into account the existing regulation, ...