Desenvolvimento de algoritmo de controle de tração para regeneração de energia metroviária - ACTREM: melhoria da eficiência energética de sistemas de tração metroviária.

Esta tese propõe um modelo de regeneração de energia metroviária, baseado no controle de paradas e partidas do trem ao longo de sua viagem, com o aproveitamento da energia proveniente da frenagem regenerativa no sistema de tração. O objetivo é otimizar o consumo de energia, promover maior eficiência, na perspectiva de uma gestão sustentável. Aplicando o Algoritmo Genético (GA) para obter a melhor configuração de tráfego dos trens, a pesquisa desenvolve e testa o Algoritmo de Controle de Tração para Regeneração de Energia Metroviária (ACTREM), usando a Linguagem de programação C++. Para analisar o desempenho do algoritmo de controle ACTREM no aumento da eficiência energética, foram realizadas quinze simulações da aplicação do ACTREM na linha 4 - Amarela do metrô da cidade de São Paulo. Essas simulações demonstraram a eficiência do ACTREM para gerar, automaticamente, os diagramas horários otimizados para uma economia de energia nos sistemas metroviários, levando em consideração as restrições operacionais do sistema, como capacidade máxima de cada trem, tempo total de espera, tempo total de viagem e intervalo entre trens. Os resultados mostram que o algoritmo proposto pode economizar 9,5% da energia e não provocar impactos relevantes na capacidade de transporte de passageiros do sistema. Ainda sugerem possíveis continuidades de estudos.

Cover to be unveiled : how meaning is revealed with sheer veils in paintings by Lucas Cranach The Elder

While scholars have questioned the meaning of Lucas Cranach the Elder’s sheer veils when associated with sensual nude figures, research about sheer veils adorning women in a religious context in his paintings has not yet been developed. Through a primarily iconographical approach, I explore who dons each type of veil, and when, to better understand why the same sheer veil is worn differently by various individuals and what that could mean relative to Cranach’s body of work. These veils exhibit artistic prowess, but analysis of their placement on individual figures also reveals how Cranach’s repeated use of sheer veils in his paintings trains the eye on underlying messages, unlocking meanings of these works for Cranach and his patrons and broader themes present in sixteenth century visual culture. My paper initiates this important discussion about how sheer veils – often overlooked in Cranach’s works – are used in both religious and secular contexts.

William Blair Townsend letter and receipt books, 1743-1805, bulk 1744-1777

The collection consists of two volumes, which date from 1743 to 1805, spanning his whole career as a merchant. Volume one is a letter book containing Townsend's business correspondence from November 23, 1743 to December 12, 1774. Most of the letters were written to American (many in North Carolina) and British (predominately in London) merchants. His earliest letters document his efforts to establish himself as a trader. Over time his letters turn to illustrate the common problems faced by many merchants: damaged goods, overpriced goods, embargos, and high freight costs. Particularly enlightening are his comments on the challenges of doing business throughout the French and Indian War and the years leading up to the American Revolution. He most frequently corresponded with London merchants Champion & Hayley, Lane & Booth, Lane Son & Fraser, Harrison & Ansley, and Leeds merchant Samuel Elam. In addition he frequently corresponded with Eliakim Palmer, colonial agent and merchant in London, as well as Dr. Walley Chauncy of North Carolina. He dealt in a wide variety of goods including molasses, rum, tar, medicines, pitch, saddles, tallow, hides, skins, pickled beef and pork, and wine. The letters also document Townsend's involvement in the slave trade through his occasional purchases of slaves.

Cleveland and Vicinity, Ohio, Railroads and Industries, 1913 (Raster Image)

This layer is a georeferenced raster image of the historic paper map entitled: Cleveland, sixth city : railroad and industrial map issued by the Cleveland Chamber of Commerce Transportation Committee; prepared under the direction of D.F. Hurd, traffic commissioner. It was published by Cleveland Chamber of Commerce Transportation Committee in 1913. Scale [1:158,400]. The image inside the map neatline is georeferenced to the surface of the earth and fit to Ohio North State Plane NAD 1983 coordinate system (in Feet) (Fipszone 3401). All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as roads, railroads, freight, passenger, and dock line railway stations, street car lines, drainage, industry locations (e.g. mills, factories, mines, etc.), docks, city boundaries, and more. Includes index to industries.This layer is part of a selection of digitally scanned and georeferenced historic maps of New England from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of regions, originators, ground condition dates, scales, and map purposes.

Chicago, Illinois, railroads and industry, 1886 (Image 2 of 2) (Raster Image)

This layer is a georeferenced raster image of the historic paper map entitled: Railway terminal and industrial map of Chicago : showing the termini, connections, and general system by which interchanges and transfers of freights are effected between all railroads centering in and about Chicago, also indicating the location of freight and passenger depots, elevators, warehouses, coal, ore, and other docks, and the leading manufactories, with an alphabetical list of the principle industries located along the lines of the same, drawn & engraved by A. Zecse & Co. It was published by Industrial World. Co. in 1886. Scale [ca. 1:19,300]. This layer is image 2 of 2 total images of the two sheet source map, representing the southern portion of the map. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Illinois East State Plane Coordinate System NAD83 (in Feet) (Fipszone 1201). All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as roads, railroads, drainage, selected buildings and industry locations (e.g. mills, factories, etc.), and more. Includes index of principal industries. This layer is part of a selection of digitally scanned and georeferenced historic maps from The Harvard Map Collection as part of the Imaging the Urban Environment project. Maps selected for this project represent major urban areas and cities of the world, at various time periods. These maps typically portray both natural and manmade features at a large scale. The selection represents a range of regions, originators, ground condition dates, scales, and purposes.

Chicago, Illinois, railroads and industry, 1886 (Image 1 of 2) (Raster Image)

This layer is a georeferenced raster image of the historic paper map entitled: Railway terminal and industrial map of Chicago : showing the termini, connections, and general system by which interchanges and transfers of freights are effected between all railroads centering in and about Chicago, also indicating the location of freight and passenger depots, elevators, warehouses, coal, ore, and other docks, and the leading manufactories, with an alphabetical list of the principle industries located along the lines of the same, drawn & engraved by A. Zecse & Co. It was published by Industrial World. Co. in 1886. Scale [ca. 1:19,300]. This layer is image 1 of 2 total images of the two sheet source map, representing the northern portion of the map. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Illinois East State Plane Coordinate System NAD83 (in Feet) (Fipszone 1201). All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as roads, railroads, drainage, selected buildings and industry locations (e.g. mills, factories, etc.), and more. Includes index of principal industries. This layer is part of a selection of digitally scanned and georeferenced historic maps from The Harvard Map Collection as part of the Imaging the Urban Environment project. Maps selected for this project represent major urban areas and cities of the world, at various time periods. These maps typically portray both natural and manmade features at a large scale. The selection represents a range of regions, originators, ground condition dates, scales, and purposes.

The Economics of EU Railway Reform. Bruges European Economic Policy (BEEP) Briefing 8/2004

The EU began railway reform in earnest around the turn of the century. Two ‘railway packages’ have meanwhile been adopted amounting to a series of directives and a third package has been proposed. A range of complementary initiatives has been undertaken or is underway. This BEEP Briefing inspects the main economic aspects of EU rail reform. After highlighting the dramatic loss of market share of rail since the 1960s, the case for reform is argued to rest on three arguments: the need for greater competitiveness of rail, promoting the (market driven) diversion of road haulage to rail as a step towards sustainable mobility in Europe, and an end to the disproportional claims on public budgets of Member States. The core of the paper deals respectively with market failures in rail and in the internal market for rail services; the complex economic issues underlying vertical separation (unbundling) and pricing options; and the methods, potential and problems of introducing competition in rail freight and in passenger services. Market failures in the rail sector are several (natural monopoly, economies of density, safety and asymmetries of information), exacerbated by no less than 7 technical and legal barriers precluding the practical operation of an internal rail market. The EU choice to opt for vertical unbundling (with benefits similar in nature as in other network industries e.g. preventing opaque cross-subsidisation and greater cost revelation) risks the emergence of considerable coordination costs. The adoption of marginal cost pricing is problematic on economic grounds (drawbacks include arbitrary cost allocation rules in the presence of large economies of scope and relatively large common costs; a non-optimal incentive system, holding back the growth of freight services; possibly anti-competitive effects of two-part tariffs). Without further detailed harmonisation, it may also lead to many different systems in Member States, causing even greater distortions. Insofar as freight could develop into a competitive market, a combination of Ramsey pricing (given the incentive for service providers to keep market share) and price ceilings based on stand-alone costs might be superior in terms of competition, market growth and regulatory oversight. The incipient cooperative approach for path coordination and allocation is welcome but likely to be seriously insufficient. The arguments to introduce competition, notably in freight, are valuable and many e.g. optimal cross-border services, quality differentiation as well as general quality improvement, larger scale for cost recovery and a decrease of rent seeking. Nevertheless, it is not correct to argue for the introduction of competition in rail tout court. It depends on the size of the market and on removing a host of barriers; it requires careful PSO definition and costing; also, coordination failures ought to be pre-empted. On the other hand, reform and competition cannot and should not be assessed in a static perspective. Conduct and cost structures will change with reform. Infrastructure and investment in technology are known to generate enormous potential for cost savings, especially when coupled with the EU interoperability programme. All this dynamism may well help to induce entry and further enlarge the (net) welfare gains from EU railway reform. The paper ends with a few pointers for the way forward in EU rail reform.

The contract of affreightment as expressed in charterparties and bills of lading /

Includes index.

Crashworthiness analysis of the UMTA state-of-the-art cars. Final report.

Transportation Systems Center, Cambridge, Mass.

A summary of opportunities to conserve transportation energy. Final report. Revised.

Transportation Department, Office of Transportation Energy Policy, Washington, D.C.

Commercial vehicle safety -- technology and practice in Europe.

Federal Highway Administration, Office of Policy Planning, Office of International Program, Washington, D.C.

Wyoming CVISN program plan.

Wyoming Highway Patrol, Commercial Carrier Section, Cheyenne

Responsive multimodal transportation management strategies and IVHS. Final report.

Federal Highway Administration, Office of Safety and Traffic Operations Research and Development, McLean, Va.

Impact assessment of the Virginia Railway Express Commuter Rail on land use development patterns in northern Virginia.

Federal Transit Administration, Washington, D.C.

An investigation of truck size and weight limits - technical supplement. Volume I: analysis of truck payloads under various limits of size, weight and configuration. Final report.

Transportation Department, Office of the Assistant Secretary for Policy and International Affairs, Washington, D.C.