Results 101 to 110 of about 296,253 (170)

Terrário

open access: yes, 2016
Experimento prático que demonstra, passo a passo, a construção de um terrário, com a utilização de materiais de baixo custoComponente Curricular::Ensino Fundamental::Séries Iniciais::Ciências ...
Espaço Ciência Viva
core   +1 more source

STATISTICAL ANALYSIS OF WIND PROFILE IN THE SURFACE LAYER AT THE ALCÂNTARA LAUNCHING CENTER. doi: 10.5028/jatm.2011.03022411

open access: yesJournal of Aerospace Technology and Management, 2011
Statistical analysis of the wind profile made at an anemometric tower installed at the Alcântara Launching Center was based on wind data (direction and wind speed) collected between 1995 up to 1999, which was carried out at six different levels: 6.0, 10 ...
Carlos Alberto Ferreira Gisler   +2 more
doaj  

Infrared Spectroscopy Applied to Materials Used as Thermal Insulation and Coatings

open access: yesJournal of Aerospace Technology and Management, 2013
http://dx.doi.org/10.5028/jatm.v5i4.265 It is very important to control the characteristics of a polymer used in rubber compositions and paints in aerospace applications.
Natália Beck Sanches   +5 more
doaj  

Observational Study of the Surface Layer at an Ocean–Land Transition Region

open access: yesJournal of Aerospace Technology and Management, 2013
http://dx.doi.org/10.5028/jatm.v5i4.244 High-frequency measurements of wind, and temperature were made during the dry season of 2008 to study the development of an internal boundary layer at the main Brazilian space launching centre, Centro de ...
Luiz Eduardo Medeiros   +3 more
doaj  

A Sensitivity Investigation on the Aeroelastic Dynamic Stability of Slender Spinning Sounding Rockets

open access: yesJournal of Aerospace Technology and Management, 2013
http://dx.doi.org/10.5028/jatm.v5i1.192 The present work addresses a sensitivity analysis investigation of the aeroelastic stability margins for the VSB-30 sounding rocket during the atmospheric flight phase. Parametric stability analyses are performed
Roberto Gil Annes da Silva   +2 more
doaj  

Structural and Morphological Characteristics of Polyaniline Synthesized in Pilot Scale

open access: yesJournal of Aerospace Technology and Management, 2017
Polyanilines have many applications in Aerospace, especially in their doped form. Studies on their synthesis in a pilot scale can contribute to obtain products with desirable characteristics for such applications.
Maria Alice Carvalho Mazzeu   +5 more
doaj  

Methodologies for Characterization of Aerospace Polymers/Energetic Materials – a Short Review

open access: yesJournal of Aerospace Technology and Management, 2016
Fourier transform infrared spectroscopy techniques, associated or not to others, are a well-studied subject used for characterizing polymers/energetic materials that have been employed mainly in aerospace industries.
Shirley Motta Pedreira   +6 more
doaj  

One Stage Power Turbine Preliminary Design and Analysis

open access: yesJournal of Aerospace Technology and Management, 2015
Design and development of gas turbine components are a complex multidisciplinary process. At the beginning of the power class definition and engine configuration it is necessary to conduct a market study.
Cleverson Bringhenti   +3 more
doaj  

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