Air Transportation
Mostrando 1-12 de 55 artigos, teses e dissertações.
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1. FATORES DE EMISSÃO E DE ENRIQUECIMENTO DA CROSTA PARA ELEMENTOS TRAÇO (MP2,5) EMITIDOS PELA FROTA VEICULAR NA REGIÃO METROPOLITANA DE SÃO PAULO, BRASIL
Air pollution can cause several negative impacts on health and the environment. In large urban centers, this pollution is directly related to anthropogenic activities, mainly activities in the transportation sector. This study analyzed data on black carbon, fine particulate material (PM2.5) and its main trace elements from automotive vehicles (S, P, K, V, Cr
Química Nova. Publicado em: 2022
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2. Development and implementation of a COVID-19 convalescent plasma program in a middle-income economy
Abstract Introduction Convalescent Plasma therapy is one of the therapeutic strategies that has been used for patients with the Covid-19 disease. Implementing a program with national extension to supply hospitals with this blood component is a great challenge mainly in a middle-income economy. Objectives Our objective was to develop and implement a Covid-1
Hematology, Transfusion and Cell Therapy. Publicado em: 2022
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3. Passageiros com deficiência visual no transporte aéreo: avaliação da acessibilidade em aeroportos
Resumo Introdução Nas últimas décadas ocorreram mudanças no entendimento da deficiência e avanços no que tange aos direitos humanos das pessoas com deficiência. Apesar disso, estudos mostram que essas pessoas ainda encontram barreiras que restringem sua participação nos diversos contextos sociais, como o transporte aéreo. Objetivo Analisar as co
Cad. Bras. Ter. Ocup.. Publicado em: 30/05/2019
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4. Measuring the Influence of the Commodity Market Performance over the Supply and Demand of Regional Air Travel
ABSTRACT: The existing relations between the supply of air transport services and economic development have been a relevant area of research in transport management. This study aims to analyze the influence of the productive performance of some Brazilian exported commodities over the demand for regional passenger air transportation on the regions where those
J. Aerosp. Technol. Manag.. Publicado em: 25/02/2019
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5. Sonic anemometry and sediment traps to evaluate the effectiveness of windbreaks in preventing wind erosion
ABSTRACT The present work analyzes the effectiveness of windbreaks against wind erosion through the study of streamline patterns and turbulent flow by means of sonic anemometry and sediment traps. To this end, windbreaks composed of plastic meshes (7.5 m long and 0.7 m tall) were used. Windbreaks are a good means to reduce wind erosion, as they produce a pos
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-12
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6. Estimated evolution of total pollutant gas emissions associated with vehicle activity in the Metropolitan Region of Porto Alegre until 2030
ABSTRACT In recent years, the majority of economic sectors in Brazil have gone through processes of development and transformation. These processes have led to increases in environmental pollution of all kinds; air pollution being one of the most adverse. The Brazilian transportation sector, which heavily affects the air quality, experienced a significant in
An. Acad. Bras. Ciênc.. Publicado em: 24/07/2017
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7. Behavior and identification of ephemeral sand dunes at the backshore zone using video images
ABSTRACT The backshore zone is transitional environment strongly affected by ocean, air and sand movements. On dissipative beaches, the formation of ephemeral dunes over the backshore zone plays significant contribution in the beach morphodynamics and sediment budget. The aim of this work is to describe a novel method to identify ephemeral dunes in the backs
An. Acad. Bras. Ciênc.. Publicado em: 01/09/2016
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8. Thermal gradients of container and mean surface temperature of broiler chicks transported on different shipments
ABSTRACT This study aimed to evaluate the thermal gradients between the container environment and the interior of chick boxes and mean surface temperature of broiler chicks during transportation on different shipments. The research was conducted in the state of São Paulo, Brazil, with the accompaniment of nine shipments with different density boxes, using a
Eng. Agríc.. Publicado em: 2016-08
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9. Microbiological and sensory evaluation of Jambu (Acmella oleracea L.) dried by cold air circulation
Abstract The aim of this study was to evaluate the microbiological and sensory quality of the Jambu (Acmella oleracea L.) in natura and dried by cold air, and the determination of its drying curve. The microbiological analysis were performed to Salmonella spp, the coagulase-positive Staphylococcus, and coliforms in the both Jambu samples, at 45 °C. Tacacá,
Food Sci. Technol. Publicado em: 19/01/2016
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10. Surveillance, health promotion and control of Chagas disease in the Amazon Region - Medical attention in the Brazilian Amazon Region: a proposal
We refer to Oswaldo Cruz’s reports dating from 1913 about the necessities of a healthcare system for the Brazilian Amazon Region and about the journey of Carlos Chagas to 27 locations in this region and the measures that would need to be adopted. We discuss the risks of endemicity of Chagas disease in the Amazon Region. We recommend that epidemiological su
Mem. Inst. Oswaldo Cruz. Publicado em: 2015-11
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11. Structural Properties of the Brazilian Air Transportation Network
A rede de transporte aéreo em um país tem um grande impacto na economia local, nacional e global. Neste artigo, analisamos a rede de transporte aéreo no Brasil através de métricas de redes complexas para o melhor entendimento de suas características. Em nossa análise, definimos redes compostas por voos nacionais ou internacionais. Também consideramos
An. Acad. Bras. Ciênc.. Publicado em: 25/08/2015
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12. The air transportation hub-and-spoke design problem: comparison between a continuous and a discrete solution method
The hub-and-spoke network design problem, also known as the hub location problem, aims to find the concentration points in a given network flow so that the sum of the distances of the linkages is minimized. In this work, we compare discrete solutions of this problem, given by the branch-and-cut method applied to the p-hub median model, with continuous soluti
Pesqui. Oper.. Publicado em: 25/10/2013