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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.
21

Estudio de prefactibilidad para brindar el servicio de transporte fluvial de alimentos perecibles en la selva Nor Oriental del Perú

Farfán-Zúñiga, Claudia-Cira, Cruz-Salas, Steve January 2016 (has links)
El presente estudio propone realizar un servicio de transporte fluvial de alimentos perecibles para las compañías petroleras de la selva norte del país, el cual forma parte importante dentro de la dieta balanceada que debe tener todo trabajador. El objetivo principal es brindar un servicio continúo durante toda época del año. / This study proposes to launch a river transport service of perishables for oil companies in the northern jungle region , which for ms an important part of thebalanced diet that every worker should have .The main objective is to prov ide a continuous service all year. / Trabajo de investigación
22

Análise de transporte multimodal na região da hidrovia Tietê-Paraná /

Bravin, Luís Fernando Nicolosi, 1969- January 2001 (has links)
Resumo: A hidrovia Tietê-Paraná foi aqui analisada sob o ponto de vista de seu aproveitamento para a navegação comercial, servindo para o escoamento dos produtos da rica região centro-oeste brasileira com destino ao porto de Santos (SP), com o objetivo de mostrar a vantagem competitiva de se utilizar a multimodalidade de transporte no escoamento de grãos. Considerando que o custo de transporte ou custo logístico chega, em alguns casos, a representar até 30% do valor final de vários produtos agrícolas, verificou-se que a navegação fluvial tornou-se um grande fator de redução no custo dos produtos, que necessitam de transporte em longa distância e, ao mesmo tempo, mantém um fluxo de carga muito elevado. Esta economia no custo de frete pode chegar a valores acima de 30%, quando se utiliza embarcações fluviais de terceiros e uma economia de mais de 40% ao se utilizar embarcações próprias, na fase do transporte hidroviário. Pela metodologia utilizada no trabalho foram identificadas duas regiões distintas: a consumidora e a produtora. Esta condição permitiu que fosse apresentado um estudo logístico específico, com maior detalhamento de rota e melhor especificação de equipamentos a serem utilizados, os quais permitiram obter resultados que possibilitaram otimizar o frete. Comparou-se os resultados desta análise de transporte com finalidade de obter relações entre custos e benefícios observados em outras modalidades de transporte utilizados nesta região, potencialmente rica e carente de transportes eficientes. / Abstract: The Tietê-Paraná's waterway was analyzed here under the point of view of its use for the commercial sailing; being good for the canal of the products of the rich center-west region of Brazil to Santos' harbour, with objective to show the advance multimodal transporting in grains drainage. Considering that the cost of transporting or logistic's cost reach thirty per cent of the final value of several agricultural products. The fluvial sailing is seen today as a great reduction factor in the costs of products, that need transport of long distance and at the same time it maintains a very high load flow. This reduction of freight may get thirty per cent if used undertaking boat, but forty per cent or more will be get if used self-boat. The work has a sequence that will begin with the general characterization of the area consumer, as well as the location of the producing areas, presenting a specific study where it will consist a larger route specially and the equipments to be it used. This source will show a series of calculations that they will have later as objective to arrive to a freight optimized in this project, which intends to offer the analysis of transport alternative comparable with the costs and benefits of the other modalities of this area, potentially rich and poor of efficient transports. / Orientador: Widsney Alves Ferreira / Coorientador: Marco Antônio Martin Biaggioni / Banca: Elias José Simon / Banca: Adilio F. de Lacerda Filho / Mestre
23

The technology and economics of water-borne transportation systems in Roman Britain

Millar, Roderick J. O. 05 1900 (has links)
The thesis examines a number of questions concerning the design, construction, costs and use of Romano-British seagoing and inland waters shipping. In the first part the reasons for the methods of construction for seagoing and coastal vessels, such as the Blackfriars Ship 1, the St. Peter Port Ship and the Barland's Farm Boat, have been investigated. The constructional characteristics of the two ships are massive floors and frames, with the planking fastened only to the floors and frames with heavy clenched iron nails. There is no edge to edge fastening of the planks, with tenons inserted into mortises cut into the edges of the planks, as is normal in the Mediterranean tradition of ship construction in the Roman period. The Romano-British ships also differ from the Scandinavian tradition of clinker building with overlapping planks nailed to each other along their length. It has been concluded that a natural phenomenon, the large tidal range around the British Isles and the northern coasts of Gaul and Germany, had a dominant effect on the design of seagoing vessels. Deep water harbours, such as Portus, Caesar ea Maritima and Alexandria in the Mediterranean, where ships could lie afloat at all times, were neither practicable nor economic with the technology available. At the British ports, such as Dover, London and Chichester, ships had to come in with the high tide, moor to simple wharves at the high tide level, and then settle on the ground as the tide dropped. At the numerous small havens, inlets and estuaries around the British coasts, ships would come in with the tide, settle on a natural or man-made 'hard' as the tide fell, and discharge cargo over the side to carts, pack animals or people. This mode of operation required sturdy ships that could take the ground without damage, and also withstand a certain amount of 'bumping' on the bottom in the transition period from fully afloat to fully aground. The second part of the thesis investigates the cost of building, maintaining and operating various types of vessels. To do this, a new mode for measuring cost, the Basic Economic Unit, or BEU, has been developed. The probable volume of the various types of cargoes carried has been examined. It appears that grain was the dominant cargo in both coastal and overseas traffic. The total cost of building, maintaining and operating the seagoing and inland water shipping was less than one percent of the gross product of Britain, a small cost for an essential service.
24

The technology and economics of water-borne transportation systems in Roman Britain

Millar, Roderick J. O. 05 1900 (has links)
The thesis examines a number of questions concerning the design, construction, costs and use of Romano-British seagoing and inland waters shipping. In the first part the reasons for the methods of construction for seagoing and coastal vessels, such as the Blackfriars Ship 1, the St. Peter Port Ship and the Barland's Farm Boat, have been investigated. The constructional characteristics of the two ships are massive floors and frames, with the planking fastened only to the floors and frames with heavy clenched iron nails. There is no edge to edge fastening of the planks, with tenons inserted into mortises cut into the edges of the planks, as is normal in the Mediterranean tradition of ship construction in the Roman period. The Romano-British ships also differ from the Scandinavian tradition of clinker building with overlapping planks nailed to each other along their length. It has been concluded that a natural phenomenon, the large tidal range around the British Isles and the northern coasts of Gaul and Germany, had a dominant effect on the design of seagoing vessels. Deep water harbours, such as Portus, Caesar ea Maritima and Alexandria in the Mediterranean, where ships could lie afloat at all times, were neither practicable nor economic with the technology available. At the British ports, such as Dover, London and Chichester, ships had to come in with the high tide, moor to simple wharves at the high tide level, and then settle on the ground as the tide dropped. At the numerous small havens, inlets and estuaries around the British coasts, ships would come in with the tide, settle on a natural or man-made 'hard' as the tide fell, and discharge cargo over the side to carts, pack animals or people. This mode of operation required sturdy ships that could take the ground without damage, and also withstand a certain amount of 'bumping' on the bottom in the transition period from fully afloat to fully aground. The second part of the thesis investigates the cost of building, maintaining and operating various types of vessels. To do this, a new mode for measuring cost, the Basic Economic Unit, or BEU, has been developed. The probable volume of the various types of cargoes carried has been examined. It appears that grain was the dominant cargo in both coastal and overseas traffic. The total cost of building, maintaining and operating the seagoing and inland water shipping was less than one percent of the gross product of Britain, a small cost for an essential service. / Arts, Faculty of / Classical, Near Eastern and Religious Studies, Department of / Graduate
25

Trafiquants et navigateurs sur le Bas Danube et dans le Pont Gauche à l'époque romaine /

Bounegru, Octavian. January 2006 (has links)
Univ., Diss.--Iaşi, 1995.
26

Etude de développement du transport lagunaire de personnes dans la ville d'Abidjan

Diabate, Lancine 09 March 2015 (has links)
La ville d'Abidjan est aujourd'hui confrontée à l'instar de toutes les grandes villes d'Afrique subsaharienne à un défi majeur dans le secteur des transports: une population urbaine en augmentation constante qui exige des moyens de transport appropriés. Cette question faisant l'objet de notre étude est cruciale. Il ne fait aucun doute que la ville d'Abidjan est confrontée à une crise des transports urbains.<p><p>Depuis le début des années 80, Abidjan a connu une dynamique spatiale et une croissance démographique constante. On note à Abidjan une séparation des fonctions, les emplois étant concentrés dans les quartiers au Sud de la ville tandis que le Nord constitue une zone résidentielle. Dans un tel contexte, le défi est donc de savoir quels sont les voies et moyens pour rendre le transport public efficace et durable.<p><p>Cette thèse vise l'accroissement et la diversification de l'offre de transport en commun par l'utilisation du plan d'eau lagunaire pour désengorger les voies terrestres, le développement de moyens de transport alternatifs, la lutte contre la pollution de l'environnement. Elle vise à promouvoir le transport lagunaire de personnes comme une solution aux problèmes de mobilité qui se posent à la population abidjanaise et à susciter un transfert modal d'autres modes de transports — tels que les voitures particulières, les bus, les taxis, les taxis wôrô-wôrôs — vers les bateaux-bus.<p><p>On note actuellement que l'exploitation du plan d'eau lagunaire est encore à l'état embryonnaire malgré la présence de la lagune dans onze des quatorze communes que compte le district d'Abidjan. / Doctorat en Sciences de l'ingénieur / info:eu-repo/semantics/nonPublished

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