Heavy Vehicles
Mostrando 13-20 de 20 artigos, teses e dissertações.
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13. Estudo do impacto de veículos pesados sobre a infra-estrutura rodoviária através de simulação microscópica de tráfego / Study of heavy vehicles impact on highway infra-structure through microscopic traffic simulation
The objective of this research was to develop a method for establishing the effect of heavy vehicles characteristics and operation on highway infra-structure by using the results of a microscopic traffic simulation model. Therefore, two secondary objectives were defined. The first of them involved the attainment of a detailed database containing the characte
Publicado em: 2007
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14. Investigação de dioxinas, furanos, hidrocarbonetos policíclicos aromáticos no material particulado e gases emitidos por motores diesel / Investigation of dioxins, furans and polycyclic aromatic hydrocarbons in particulate material and gases emitted by diesel engines.
To investigate emission of chlorinated dioxins and furans (PCDD/Fs) and polycyclic aromatic hydrocarbons (PAHs) in heavy duty diesel engines, through the analysis of particulate material and gases in the exhaust.To verify mutagenicity of collected particulate material and gasesous sample extracts. Material and Methods: The engine emissions tests were done in
Publicado em: 2007
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15. Simulação do fluxo de veículos pesados em área urbana propostas e reestruturação dos principais corredores / Simulation of the flow of heavy vehicles in urban area - proposals and reorganization of the main corridors
O crescimento das cidades e o desenvolvimento dos modos de transportes têm contribuído para o desenvolvimento econômico-social, entretanto a falta ou ineficácia do planejamento urbano de transportes aliado ao crescimento desordenado dos centros urbanos vêem configurando cenários não muito adequados. A qualidade de vida da população fica comprometida
Publicado em: 2006
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16. Estudo de geração de trincas térmicas em discos de freios de veículos comerciais
The disc brake systems, when compared with the drum brake systems currently used in heavy-duty vehicles, resent significant advantages, such as: better performance in relation to temperature and speed and better braking comfort. On the other hand, the use of those systems submits the brake discs to much higher mechanical and thermal stress than that in brake
Publicado em: 2006
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17. Adaptação do HCM-2000 para determinação do nível de serviço em rodovias de pista simples sem faixas adicionais no Brasil / Adaptation of the HCM-2000 to estimate the level of service for two-lane highways without auxiliary lanes Brazil
This thesis objective is to adapt the Highway Manual Capacity 2000, procedures to produce better estimates of service level and capacity for two-lane highways studied, In order to do this, an automatic calibration system, implementing a genetic algorithm and coded in Perl, was used to obtain a recalibrated version of TRARR, a two-lane highway simulation mode
Publicado em: 2006
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18. Utilização de sistemas PDM em ambientes de engenharia simultânea: o caso de uma implantação em uma montadora de veículos pesados. / Use of PDM systems in concurrent engineering environments: a case study of an implementation in a multinational heavy vehicles industry.
A engenharia simultânea e os sistemas de gerenciamento de dados de produto(PDM), apesar de serem uma ajuda preciosa para que as empresas enfrentem as novas condições de sobrevivência no mercado atual, não são muito conhecidos. Além disso, existem poucos trabalhos científicos relacionados à implantação e ao auxílio deste tipo sistema no gerenciame
Publicado em: 1999
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19. Motor vehicle accidents (1973-6) in a cohort of Montreal drivers.
In 1973-4 nearly 10 000 Montreal drivers, interviewed by telephone, provided information about medical and associated factors and about driving habits, in particular annual mileage. Records of accidents suffered by these drivers in the Province of Quebec over 39 months (1973-6) were also collected. The 7634 current drivers, with appropriate permits, and all
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20. Arthritis-inducing ability of a synthetic adjuvant, N-acetylmuramyl peptides, and bacterial disaccharide peptides related to different oil vehicles and their composition.
A synthetic adjuvant, N-acetylmuramyl-L-alanyl-D-isoglutamine (MDP), failed to produce polyarthritis with a wide dose range in a water-in-oil emulsion of mineral oil such as liquid paraffin, Drakeol, or heavy mineral oil. MDP, however, produced moderate to severe arthritis with almost 100% incidence in a water-in-oil emulsion made up of Difco incomplete adju