10 research outputs found

    Coupling of interactive manufacturing operations simulation and immersive virtual reality

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    This paper presents a novel general-purpose simulation analysis application that combines concurrent operations simulation with the advanced data interrogation and user interaction capabilities of immersive virtual reality systems. The application allows for interactive modification of the simulation parameters, while providing the users with the available simulation information by effectively placing the operator in the midst of the environment being simulated. The major contribution of this research is the total integration of the immersive virtual reality environment with the simulation, allowing users in the environment to interactively change the inputs to the simulation as it is running. Implementation and functionality details of the developed application are presented. The experience of using the application to analyze a manufacturing operation in a collaborative scenario is also discussed

    Design of Passenger Interchanges

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    Three projects focussing on intermodality and interchanges are currently in progress, promoted by the European Commission: GUIDE, MIMIC and PIRATE. After a short description of each project, the paper concentrates on the MIMIC project. The MIMIC approach consists in a structured evaluation of the necessary and desirable conditions to improve interchanges and intermodality. In particular, the project s aim is to identify passengers needs and priorities in order to help decision makers to choose among the many investment projects competing for the same pot of money. MIMIC uses the notion of barriers to intermodality as a way of throwing light on and evaluating problems relating to interchanges in six sample cities (Bilbao, Copenhagen, London, Rome, Tampere and Warsaw). The tools used to assess and scale users needs are presented and commented. These include both surveying and modelling tools. The modelling tools (logit model, micro-simulation model and GIS tool) are described in detail. Finally, the most important barriers to intermodality are summarised and commented.Institute of Transport and Logistics Studies. Faculty of Economics and Business. The University of Sydne

    Coupling of interactive manufacturing operations simulation and immersive virtual reality

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    This paper presents a novel general-purpose simulation analysis application that combines concurrent operations simulation with the advanced data interrogation and user interaction capabilities of immersive virtual reality systems. The application allows for interactive modification of the simulation parameters, while providing the users with the available simulation information by effectively placing the operator in the midst of the environment being simulated. The major contribution of this research is the total integration of the immersive virtual reality environment with the simulation, allowing users in the environment to interactively change the inputs to the simulation as it is running. Implementation and functionality details of the developed application are presented. The experience of using the application to analyze a manufacturing operation in a collaborative scenario is also discussed.This is a manuscript from Virtual Reality 16 (2010): 15, doi:10.1007/s10055-010-0165-7. Posted with permission. The final publication is available at Springer via http://dx.doi.org/10.1007/s10055-010-0165-7.</p

    Realizzazione di un sistema di calcolo e di spazializzazione dell'indice canadese di pericolo d'incendio boschivo FWI (Fire Weather Index) per la Regione Veneto.

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    Fire danger rating systems are essential tools for fire management activities, allowing optimal allocation of resources both before and during the fire danger periods. Veneto Region\u2019s Forest Service is testing the Canadian Forest Fire Weather Index (FWI) System to assess fire intensity, accounting for the effect of wind and the moisture content of inflammable material. The following steps were taken to apply the FWI system: (a) selection of the smallest number (ideally 10 - 15) of weather stations to obtain input data. Principal Components Analysis was carried out on 62 time-series of 30 years (1960-1990), including mean monthly temperature (minimum and maximum) and rainfall. The results highlighted two principal directions of climatic variability that were interpolated by the co-kriging method, allowing to delineate 11 relatively homogeneous areas in the Veneto Region. One station representative of each area was chosen to provide daily data for computing the daily fire danger index by the Regional Rating Service; (b) automation of the FWI system. A SAS v.9.1\uae application runs the calculations and generates a regional map of daily fire danger for the Forest Service personnel. Graphics and tabular data are also available via intranet
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