Results 41 to 50 of about 43,582 (121)
Journal of Aerospace Technology and Management, 2011 A new method using wet chemistry and instrumental analysis has been developed for evaluating the ring-opening of aziridine tris [1-(2 methyl) aziridinyl] phosphide oxide (MAPO) of the bonding agent used in composite propellant.
Darci Cortes Pires +6 more
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Indoor Radar Cross Section Measurements of Simple Targets
Journal of Aerospace Technology and Management, 2012 This paper has described the radar absorbing materials characterization and radar cross section measurements, in the frequency range of 8 to 12 GHz, using a very simple setup.
Marcelo Alexandre Souza Miacci +4 more
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Taxonomy of IMT Interference on Aeronautical Systems
Radio Science, Volume 61, Issue 4, April 2026.Abstract The rapid deployment of 5G and future 6G networks has raised concerns about interference with critical aeronautical systems, particularly radio altimeters and Wireless Avionics Intra‐Communications (WAIC). This paper offers a comprehensive taxonomy of the 5G/6G signal interference mechanisms, operational impacts, and mitigation strategies in ...
Valéria C. M. N. Leite, Alison Moraes
wiley +1 more source
Journal of Aerospace Technology and Management, 2015 The interannual variability of precipitation in El Niño/Southern Oscillation-neutral years was studied for the Centro de Lançamento de Alcântara region. Monthly precipitation, sea surface temperature, wind at 925 hPa and outgoing longwave radiation data ...
Rosa de Fátima Cruz Marques +1 more
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Development Status of the L75: A Brazilian Liquid Propellant Rocket Engine
Journal of Aerospace Technology and Management, 2014 This paper provides an overview of the design and development process of the L75 Liquid Propellant Rocket Engine (LPRE). Being developed at Institute of Aeronautics and Space (IAE), it is the first Brazilian open-cycle liquid rocket engine pressurized by
Daniel Soares de Almeida +1 more
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Avaliação por FT-IR de interações entre polímero energético e oxidante: GAP/ADN e GAP/AP
Polímeros, 2014 A possibilidade de interação entre o sistema à base do polímero de azoteto de glicidila e da dinitramida de amônio (GAP/ADN) foi avaliada, por FT-IR, nas regiões do infravermelho médio (MIR) e infravermelho próximo (NIR).
José Irineu Sampaio de Oliveira +3 more
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Modelling solar radial velocities and photometric variability with SOAP
Astronomy & AstrophysicsContext. Stellar activity remains one of the main limitations in the detection of Earth-like planets using radial velocity (RV) measurements. The Sun, as the only star for which surface features can be spatially resolved, offers a unique testbed for ...
Barka A. +7 more
doaj +1 more source
Polímeros, 2014 Neste trabalho, é mostrada a avaliação da técnica FT-IR, refletância difusa (DRIFT), na região NIR (DRIFT/NIR) para a caracterização de OIT, carbendazim e diuron em composições de tintas acrílicas, contendo esses microbicidas moídos e reduzidos a ...
Ricardo Pedro +3 more
doaj +1 more source
Aplicação da calorimetria exploratória diferencial no estudo da cinética de transição alfa -> delta HMX [PDF]
Química Nova, 2004 Gilson da Silva +3 more
doaj +1 more source
Caracterização por FT-IR da superfície de borracha EPDM tratada via plasma por micro-ondas
Polímeros, 2012 A superfície de uma borracha de etileno-propileno-dieno (EPDM) vulcanizada foi modificada via plasma por microondas, com gases Ar, Ar/O2, N2/O2 e N2/H2, tendo como objetivo melhorar as propriedades adesivas da superfície.
Renata P. dos Santos +4 more
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