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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

Evaluation, Modeling, and Analysis of Shipping Container Building Structures

Giriunas, Kevin Andrew 05 January 2012 (has links)
No description available.
2

Novas fronteiras de expansão para o gás natural: o suprimento em pequena escala através da malha ferroviária brasileira / New expansion frontiers for the natural gas: the small-scale supply through the Brazilian rail network

Liaw, Cylon 19 October 2018 (has links)
A partir da leitura do PEMAT 2022, referência sobre a expansão da malha dutoviária no Brasil, constata-se que não há previsão de novos gasodutos no médio prazo, fato que prejudica os planos do governo Federal de aumentar a participação do gás natural no mix energético nacional, atualmente responsável por 12,9% da oferta interna de energia. Nesse sentido, surge a possibilidade da indústria do gás natural e de seus consumidores se beneficiarem da infraestrutura existente das ferrovias, a partir do transporte de GNL (gás natural liquefeito) em pequena escala, através de vagões-tanque e contêineres criogênicos. A viabilidade no contexto brasileiro é justificada pelo cenário atual de limitado alcance da rede de gasodutos, grandes distâncias percorridas e potencial oferta de gás natural de fontes energéticas não-convencionais, como os campos do pré-sal e as bacias sedimentares com gás de folhelho. Ainda que a temática seja incipiente no setor do gás natural internacional, experiências bem-sucedidas como as do Japão, dos EUA e da Suécia trazem boas perspectivas de adoção do modal ferroviário para a distribuição do GNL para regiões não atendidas pelas redes de gasodutos. Nos três casos, foram descritos a conjuntura energética, a matriz de transportes e os condicionantes operacionais, no sentido de detectar possíveis similaridades e trazê-las para o Brasil. No caso brasileiro, os mesmos parâmetros foram analisados, além de identificadas algumas das possíveis demandas como, por exemplo, uma maior participação no setor agropecuário e a substituição do diesel utilizado nas locomotivas por GNL. O Brasil reúne as condições mínimas para o funcionamento do modal ferroviário como distribuidor de GN pelo país, porém depende do desenvolvimento destes parâmetros para amadurecimento do mercado de gás natural. / Regarding the PEMAT 2022, Brazils pipeline network expansion reference, it is shown that new pipelines are not foreseen in the medium term, which could impair the Federal governments plans to increase natural gas share in the national energy mix, currently responsible for 12,9% of the total primary energy supply. In this sense, it is possible for the natural gas industry and its consumers to benefit from the existing railroad infrastructure, to haul LNG (liquefied natural gas) on a small-scale, through tank wagons and cryogenic containers. The Brazilian contexts viability is justified by the current scenario of limited gas pipelines range, large distances traveled and potential natural gas supply from unconventional energy sources, such as pre-salt fields and sediment basins with shale gas. Although the topic is incipient in the international natural gas sector, successful experiences such as those in Japan, the USA and Sweden have good prospects for adopting the rail modal for the distribution of LNG to regions not served by pipeline networks. In all three cases, the energy scenario, the transport matrix and the operational constraints were described, in order to detect possible similarities and bring them to Brazil. In the Brazilian case, the same parameters were analyzed, in addition to identified demands, such as a greater participation in the agricultural sector and the replacement of diesel used in locomotives for LNG. Brazil meets the minimum conditions for the operation of the railway modal as natural gas distributor among the country but depends on the development of these parameters for the development of the natural gas market.
3

Novas fronteiras de expansão para o gás natural: o suprimento em pequena escala através da malha ferroviária brasileira / New expansion frontiers for the natural gas: the small-scale supply through the Brazilian rail network

Cylon Liaw 19 October 2018 (has links)
A partir da leitura do PEMAT 2022, referência sobre a expansão da malha dutoviária no Brasil, constata-se que não há previsão de novos gasodutos no médio prazo, fato que prejudica os planos do governo Federal de aumentar a participação do gás natural no mix energético nacional, atualmente responsável por 12,9% da oferta interna de energia. Nesse sentido, surge a possibilidade da indústria do gás natural e de seus consumidores se beneficiarem da infraestrutura existente das ferrovias, a partir do transporte de GNL (gás natural liquefeito) em pequena escala, através de vagões-tanque e contêineres criogênicos. A viabilidade no contexto brasileiro é justificada pelo cenário atual de limitado alcance da rede de gasodutos, grandes distâncias percorridas e potencial oferta de gás natural de fontes energéticas não-convencionais, como os campos do pré-sal e as bacias sedimentares com gás de folhelho. Ainda que a temática seja incipiente no setor do gás natural internacional, experiências bem-sucedidas como as do Japão, dos EUA e da Suécia trazem boas perspectivas de adoção do modal ferroviário para a distribuição do GNL para regiões não atendidas pelas redes de gasodutos. Nos três casos, foram descritos a conjuntura energética, a matriz de transportes e os condicionantes operacionais, no sentido de detectar possíveis similaridades e trazê-las para o Brasil. No caso brasileiro, os mesmos parâmetros foram analisados, além de identificadas algumas das possíveis demandas como, por exemplo, uma maior participação no setor agropecuário e a substituição do diesel utilizado nas locomotivas por GNL. O Brasil reúne as condições mínimas para o funcionamento do modal ferroviário como distribuidor de GN pelo país, porém depende do desenvolvimento destes parâmetros para amadurecimento do mercado de gás natural. / Regarding the PEMAT 2022, Brazils pipeline network expansion reference, it is shown that new pipelines are not foreseen in the medium term, which could impair the Federal governments plans to increase natural gas share in the national energy mix, currently responsible for 12,9% of the total primary energy supply. In this sense, it is possible for the natural gas industry and its consumers to benefit from the existing railroad infrastructure, to haul LNG (liquefied natural gas) on a small-scale, through tank wagons and cryogenic containers. The Brazilian contexts viability is justified by the current scenario of limited gas pipelines range, large distances traveled and potential natural gas supply from unconventional energy sources, such as pre-salt fields and sediment basins with shale gas. Although the topic is incipient in the international natural gas sector, successful experiences such as those in Japan, the USA and Sweden have good prospects for adopting the rail modal for the distribution of LNG to regions not served by pipeline networks. In all three cases, the energy scenario, the transport matrix and the operational constraints were described, in order to detect possible similarities and bring them to Brazil. In the Brazilian case, the same parameters were analyzed, in addition to identified demands, such as a greater participation in the agricultural sector and the replacement of diesel used in locomotives for LNG. Brazil meets the minimum conditions for the operation of the railway modal as natural gas distributor among the country but depends on the development of these parameters for the development of the natural gas market.
4

Service Level Management : Equalize unloadingencrustation at Stora Enso – Skoghalls bruk

Johansson, Mikael, Karlsson, Joel January 2009 (has links)
The report is part of the university´engineer program within Industrial Organization and Economics with specialization in Logistics and Managment at Jönköping´s university. Skoghall´s mill underlies a large supply chain, which means there should be a lot of areas in need of small improvement measures. This report illustrates a small part of one of these areas and is focused on the loading distribution services in the terminal Vänern. At the moment there´s a very unequal load of the load carriers SECU box and Container at the terminal. Skoghall´s mill has the desire to equalize the high and low load levels of the 2 loading carriers named previously. One of the options to solve the problem is to set a limit of how much the carriers can load per week or per day. The mill also wants it to be investigated if the proposition would influence the customers in any way and if both the company and its customers could handle a lower level of delivery services in case the proposition was to be applied. The goal to be achieved with this thesis is to provide balance to the unequall loading of the 2 load carriers, SECU and Container, and investigate whether or not the Skoghall´s mill´s customers, could manage the lower degree of delivery service that the proposition would imply. For this goal to be achieved, random sample investigations were taken from orders of a customer that is provided with SECU load carriers and the same was made with a Container´s customer. The orders were analysed from production to consumption on the investigation. As a result of random sample investigations and customers´s evaluations, the thesis shows that it is possible to lower the resources at Vänerterminalen. This means that there is a full possibility to limitate the loadingprocess without causing any major effects on Stora Enso´s customers. Further investigation should be made by the company, such as random sample investigations of more customers, to generate a better picture of what the proposition would mean in reality. In case that investigation turn out to be not in accordance with the thesis, the authors worked on other two solution propositions. Both of them also would contribute to a more even torrent of unloading at Vänerterminalen.
5

Service Level Management : Equalize unloadingencrustation at Stora Enso – Skoghalls bruk

Johansson, Mikael, Karlsson, Joel January 2009 (has links)
<p>The report is part of the university´engineer program within Industrial Organization and Economics with specialization in Logistics and Managment at Jönköping´s university.</p><p>Skoghall´s mill underlies a large supply chain, which means there should be a lot of areas in need of small improvement measures. This report illustrates a small part of one of these areas and is focused on the loading distribution services in the terminal Vänern.</p><p>At the moment there´s a very unequal load of the load carriers SECU box and Container at the terminal. Skoghall´s mill has the desire to equalize the high and low load levels of the 2 loading carriers named previously. One of the options to solve the problem is to set a limit of how much the carriers can load per week or per day. The mill also wants it to be investigated if the proposition would influence the customers in any way and if both the company and its customers could handle a lower level of delivery services in case the proposition was to be applied.</p><p>The goal to be achieved with this thesis is to provide balance to the unequall loading of the 2 load carriers, SECU and Container, and investigate whether or not the Skoghall´s mill´s customers, could manage the lower degree of delivery service that the proposition would imply.</p><p>For this goal to be achieved, random sample investigations were taken from orders of a customer that is provided with SECU load carriers and the same was made with a Container´s customer. The orders were analysed from production to consumption on the investigation.</p><p>As a result of random sample investigations and customers´s evaluations, the thesis shows that it is possible to lower the resources at Vänerterminalen. This means that there is a full possibility to limitate the loadingprocess without causing any major effects on Stora Enso´s customers. Further investigation should be made by the company, such as random sample investigations of more customers, to generate a better picture of what the proposition would mean in reality. In case that investigation turn out to be not in accordance with the thesis, the authors worked on other two solution propositions. Both of them also would contribute to a more even torrent of unloading at Vänerterminalen.</p>

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