Airspace
Mostrando 1-12 de 74 artigos, teses e dissertações.
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1. Physical Properties and Crop Management for Corn in an Albaqualf
ABSTRACT Rice monoculture in lowlands can cause problems for management practices in crop fields, for example, in weed control. For this reason, corn in rotation with irrigated rice in lowlands may be advantageous, despite problems with soil compaction and water excess. The objective of this study was to evaluate soil physical properties and corn performance
Rev. Bras. Ciênc. Solo. Publicado em: 27/03/2017
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2. Operation Efficiency Assessment Model of Route Network in Terminal Area
ABSTRACT: Terminal area is an important part of airspace system. Its operation efficiency is related to the safety, order and efficiency of the entire air traffic. So the assessment of the terminal route network operation efficiency is needed. Considering the aspects of route segment capacity, flight flow, workload and operation stability, the paper analyzes
J. Aerosp. Technol. Manag.. Publicado em: 2015-12
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3. Pharyngeal airspace in patients undergoing orthognathic surgery for mandibular advancement
Aim: To evaluate the increase of pharyngeal airway space (PAS) in patients undergoing mandibular advancement.
Methods: A retrospective cross-sectional study was performed in thirteen patients who underwent mandibular advancement and were evaluated by cephalometric tracing in pre and postoperative lateral
Braz. J. Oral Sci.. Publicado em: 2015-06
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4. Effects of Cosmic Radiation in Aircrafts: A Discussion about Aircrew over South America
Abstract: This paper has discussed the guidelines included in the documents of the International Commission on Radiological Protection (ICRP) on radiation protection applicable to aircraft and crew, and this is a brief report of the evolution of studies in this field of activity, as well as the regulations and recommendations already adopted by member countr
J. Aerosp. Technol. Manag.. Publicado em: 2012-06
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5. Chest computed tomography findings in severe influenza pneumonia occurring in neutropenic cancer patients
OBJECTIVE: To describe the chest computed tomography findings for severe influenza H1N1 infection in a series of hospitalized neutropenic cancer patients. METHODS: We performed a retrospective systematic analysis of chest computed tomography scans for eight hospitalized patients with fever, neutropenia, and confirmed diagnoses of influenza H1N1. The clinical
Clinics. Publicado em: 2012
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6. Dosimetria da radiação cósmica no interior de aeronaves no espaço aéreo Brasileiro / Cosmic radiation dosimetry onboard aircrafts at the brazilian airspace
Neste trabalho, cujo objetivo foi fornecer subsídios que permitam estabelecer um sistema de dosimetria para as tripulações de aeronaves que operam no território nacional, foi desenvolvida uma técnica para realizar medições do equivalente de dose ambiente em aeronaves. Foi testado um detector ativo, para uso embarcado em aeronaves, avaliando-se sua ade
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/09/2011
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7. Aerossóis Atmosféricos: Medidas de Concentração sobre o Estado do Ceará. / Atmospheric Aerosols: Measurements of Concentration on the state of Ceara.
This work is a dissertation that aims to get standards in scientific measurements of the concentration of aerosols in the atmosphere over the State of Ceará and estimate empirical relationships between cloud condensation nuclei and nuclei of condensation on the basis of a set of supersaturation and the altitude. Data were used: the concentration of aerosols
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/03/2011
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8. Experimental results of a Mach 10 conical-flow derived waverider to 14-X hypersonic aerospace vehicle
Abstract This paper presents a research in the development of the 14-X hypersonic airspace vehicle at Institute for Advanced Studies (IEAv) from Department of Science and Aerospace Technology (DCTA) of the Brazilian Air Force (FAB). The 14-X project objective is to develop a higher efficient satellite launch alternative, using a Supersonic Combustion Ramjet
J. Aerosp. Technol. Manag.. Publicado em: 2011-08
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9. Short-term exposure of mice to cigarette smoke and/or residual oil fly ash produces proximal airspace enlargements and airway epithelium remodeling
Chronic obstructive pulmonary disease (COPD) is associated with inflammatory cell reactions, tissue destruction and lung remodeling. Many signaling pathways for these phenomena are still to be identified. We developed a mouse model of COPD to evaluate some pathophysiological mechanisms acting during the initial stage of the disease. Forty-seven 6- to 8-week-
Brazilian Journal of Medical and Biological Research. Publicado em: 2011-05
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10. Aircraft spacing for continuous descent approach in a terminal area based on required time of arrival at a metering fix.
Guiding arriving flights through congested terminal airspace has always been a challenge. As traffic builds up, controllers must often move traffic away from the airport until they can bring those flights in for landing, causing inefficiencies. A widespread implementation of Continuous Descent Approach (CDA) would result in significant reductions in environm
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/12/2010
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11. Mechanical ventilation and lung infection in the genesis of air-space enlargement
Introduction Air-space enlargement may result from mechanical ventilation and/or lung infection. The aim of this study was to assess how mechanical ventilation and lung infection influence the genesis of bronchiolar and alveolar distention. Methods Four groups of piglets were studied: non-ventilatednon- inoculated (controls, n = 5), non-ventilated-inoculated
Publicado em: 2010
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12. Aircraft spacing for continuous descent approach in a terminal area based on required time of arrival at a metering fix.
Guiding arriving flights through congested terminal airspace has always been a challenge. As traffic builds up, controllers must often move traffic away from the airport until they can bring those flights in for landing, causing inefficiencies. A widespread implementation of Continuous Descent Approach (CDA) would result in significant reductions in environm
Publicado em: 2010