21 resultados para Merchant ships


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One of the reasons that influences the efficience of a port terminal that is especialized in movement of containers is in the process of their loading and unloading. The fundamental idea is to determine a plan, to each port in order to decrease the number of total movement of loading and unloading that are necessary during the ship route to every port so that they save time and consequently reduce costs. The goal of this research was to present improvement in the program, written in language C, used to solve to problem of loading and unloading of ships, a NP-complete problem, through the meta-heuristics Simulated Annealing. With the improvement made, an average of 50% reduction of necessary time was gotten to solve the problem in 45 analised instances and in a specific group of these instances the average reduction reached 77 and in 10 instances there was even an improvement in the solution

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This work proposes two optimization algorithms for the solution of the Berth Allocation Problem (PAB). Due to the economic development of the country, it became necessary for the improvement of means of transport, which mainly shipping. For this, you need a better system management port, you will receive a lot of ships carrying cargo. In this work the PAB is approached so that the goals are to reduce costs and time handling in ports. For this, we applied two computational techniques, genetic algorithms and optimization for cloud particles, to obtain the best results for this problem. The results obtained with each type of algorithm are compared to conclude which method is more efficient for the port system

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This work seeks to explain the historical perspective of the building temporal western, showing the concepts of morphogenesis and morphodynamics as contemporary representations of geographical science for the synthesis forged about time. In this sense, it is the perspective of time in the Middle Ages, its implications and social substantiality, as interposed to time erected by the rise of a merchant class in Europe, we seek to present the social conception of this category in the West, stating that this not constituted as a supra-social element, but built by the organization itself and internal contradiction of European society. Finally, we saw the delineations drawn by geography, set in propositions about the dynamics of nature and society, such being the latest concepts in terms of the logic of assimilation weather prevailing. For this, we use literature review and comparison of temporal models at different times for the delineation of the contours of the research... (Complete abstract click electronic access below)

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From the 1860s, the Italian emigration reached many entily, becoming on national problem and a source of revenue for shipping companies operating in the Atlantic. In Italy, the resources were fundamental in financing the replacement of the old sailboats by more modern steamers. Established in 1881, the Navigazione Generale Italiana (NGI) had not scoped to carry passengers. It acted in trade of goods conjugated with postal services widely subsidized by the state. By incorporating that transported immigrants, in a concentration process that would transform it in the largest shipping company in Italy, the NGI opened the thriving business of emigration to the Americas. Based on reports and Balance Exercises Financial of the company between the years 1881 and 1915, papers relating to merchant shipping and emigration legislation (laws of 1888 and 1901), this paper aims to present some results of research on the importance trafficking of Italian emigrants Navigazione Generale Italiana for marking the specialization process of its fleet this kind of service.

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This paper is to discuss the expansion and partly dismantlement of Brazilian merchant marine, tracking their legal, administrative and planning. The analysis period extends from the formation of the Comissão da Marinha Mercante, 1941, to the end of the government of Fernando Henrique Cardoso, 2002. In this long duration it is discussed the formation of the national system of economy and the dynamics of contradictory national merchant navy. The text is divided into two parts: 1) Expansion: The centralization, the planning and nationalization with the formation of the shipbuilding industry, highlighting the actions of the Comissão da Marinha Mercante and the Superintendência Nacional da Marinha Mercante, planning and financing the national navigation; 2) Demolition part: the denationalization and privatization of the national navigation, in addition to the deep restructuring of the shipbuilding industry, highlighting the creation of the Agência Nacional de Transporte Aquaviários during the last years of Fernando Henrique Cardoso government.

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Art can be understood as a process in which knowledge is used to perform certain skills. From Latin ARS, technical means and / or ability, in Greece, there was the word art, but "Tekne", which originated from the word "technical." So art and technique are present in sculptures, paintings, shoes or ships. In this sense, designers, engineers and all professionals who use technology can be called artists. Considerations must be made regarding the level of energy embedded in the material from its production until its use, even considering recycling, sustainability and life cycle of materials. This study aimed to present the use of scanning technology and 3D virtual modeling and its application in prototyping with CNC (Computed Numerical Control) as a tool in current use cutting-edge courses in arts, design and engineering and their relations with sustainability.