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Influence of Ionospheric Scintillation on GNSS Satellite Constellation Geometry
(Ieee, 2018-01-01)
Ionospheric scintillation is a serious concern for GPS users under low latitude regions. Under extreme cases, scintillation may lead to a full disruption of the receiver operation. This work presents a statistical analysis ...
Influence of Ionospheric Scintillation on GNSS Satellite Constellation Geometry
(2018-01-01)
Ionospheric scintillation is a serious concern for GPS users under low latitude regions. Under extreme cases, scintillation may lead to a full disruption of the receiver operation. This work presents a statistical analysis ...
Internalization of CO2 emission cost in cogeneration systems
(2009-01-01)
Greenhouse effect is a subject that nowadays concerns the world population. Some governments are adopting environmental taxes for minimizing the consequence of thermal generation pollutants, whose objective is to internalize ...
A study of the influence of WC-10Co-4Cr HVOF coating on mechanical properties of AISI 4340 steel
(2001-01-01)
Aircraft landing gear manufacturers are considering WC thermal spray coatings applied by the high-velocity oxygen-fuel (HVOF) process as an alternative to hard chrome plating. The question to be answered is if the performance ...
Electro-hydraulic actuator tester for fly-by-wire aircrafts
(2007-09-28)
An 8051-based microcontroller tester has been designed to reduce troubleshooting time of the Electro-Hydraulic Actuators (EHA) installed in fly-by-wire aircrafts. The tester algorithm first evaluates EHA pressure and ...
An investigation of electrolytic surface damages and electroplated crhomium effects on fatigue behavior of high strength steel
(2001-12-01)
Fatigue crack initiation occurs at the surface, although sub surface nucleation has also been reported. Localized imperfections like inclusions close to surface and surface small pits can result in crack sources. Coatings ...
Measuring the efficiency of outsourcing: An illustrative case study from the aerospace industry
(2007-12-01)
Outsourcing is related to the action which an organization deals with its suppliers through a kind of business contract where a specific activity or service has been hired to be made. The outsourcing of some activities has ...
Finite element analysis of warpage in laminated aluminium alloy plates for machining of primary aeronautic parts
(2007-05-11)
The aim of this paper consists in presenting a method of simulating the warpage in 7xxx series aluminium alloy plates. To perform this simulation finite element software MSC.Patran and MSC.Marc were used. Another result ...
Finite element analysis of warpage in laminated aluminium alloy plates for machining of primary aeronautic parts
(Amer Inst Physics, 2007-01-01)
The aim of this paper consists in presenting a method of simulating the warpage in 7xxx series aluminium alloy plates. To perform this simulation finite element software MSC.Patran and MSC.Marc were used. Another result ...
Educação popular: uma experiência em construção
(Universidade Estadual Paulista (Unesp), 2005)
Explanarei sobre o Programa de Educação de Jovens e Adultos (PEJA) desenvolvido na cidade de Gavião Peixoto, estado de São Paulo, com o financiamento da EMBRAER (Empresa Brasileira de Aeronáutica), tendo a UNESP como ...