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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Desenvolvimento de um modelo de simulação para dimensionamento de um sistema integrado pátio-porto na cadeia do minério de ferro. / Development of a simulation model for the assessment of an integrated stockyard-port system through the use of the model in a mining company.

Juliá, Alexandre Font 12 April 2010 (has links)
No presente trabalho é proposto o desenvolvimento de um modelo de simulação para o dimensionamento de um sistema integrado pátio-porto aplicando o modelo em uma empresa do ramo de mineração. É feita uma revisão bibliográfica dos conceitos de simulação, dos elementos que compõem os sistemas de pátio e porto para produtos granéis, e de trabalhos relacionados ao tema. O trabalho apresenta uma análise entre possíveis cenários de expansão do sistema pátio-porto através de métricas definidas e faz uma comparação entre cada cenário proposto. / This paper proposes the development of a simulation model for the assessment of an integrated stockyard-port system through the use of the model in a mining company. It is done a bibliographic revision of the simulation concepts, of the elements which set up the stockyard and port systems for bulk cargoes and of studies related to the subject. The paper presents an analysis among possible upgrade scenarios of the stockyard-port system through chosen metrics and does a comparison between each proposed scenario.
2

Desenvolvimento de um modelo de simulação para dimensionamento de um sistema integrado pátio-porto na cadeia do minério de ferro. / Development of a simulation model for the assessment of an integrated stockyard-port system through the use of the model in a mining company.

Alexandre Font Juliá 12 April 2010 (has links)
No presente trabalho é proposto o desenvolvimento de um modelo de simulação para o dimensionamento de um sistema integrado pátio-porto aplicando o modelo em uma empresa do ramo de mineração. É feita uma revisão bibliográfica dos conceitos de simulação, dos elementos que compõem os sistemas de pátio e porto para produtos granéis, e de trabalhos relacionados ao tema. O trabalho apresenta uma análise entre possíveis cenários de expansão do sistema pátio-porto através de métricas definidas e faz uma comparação entre cada cenário proposto. / This paper proposes the development of a simulation model for the assessment of an integrated stockyard-port system through the use of the model in a mining company. It is done a bibliographic revision of the simulation concepts, of the elements which set up the stockyard and port systems for bulk cargoes and of studies related to the subject. The paper presents an analysis among possible upgrade scenarios of the stockyard-port system through chosen metrics and does a comparison between each proposed scenario.
3

Stanovení způsobu a prostředků měření geometrie zakládaného kusovitého produktu na skládkách / Definition of the Method for Measurement of Bulk Materials Geometry on the Stockyards

Nešpor, Tomáš January 2014 (has links)
This thesis is concerning about measurement of bulk materials geometry on the stockyards. In the first part of the document is summarized basic allocation of stockyard types, stockyards architecture and methods of bulk materials stacking. Furthermore there are allocated particular stacking and recovering technologies of bulk materials on the stockyards. The experimental part of the thesis is concerning about introduction to measurement of bulk materials geometry and its state consequently selection and description of measurement devices intended to forenamed purpose. The experimental part of the thesis is dedicated to determination of algorithms for measured data processing on a combined stacker/reclaimer machine; consequently it is dedicated to software equipment of data gathering PLC system. At the last part of the thesis a description of designed input data simulation and visualization which displays gathered data by PLC system are stated.

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