Results 41 to 50 of about 296,253 (170)

Breves notas sobre o VIII Colóquio de Geocrítica [PDF]

open access: yes, 2006
1Nã
Oliveira, José Aldemir de
core  

Determinação por FT-IR de transmissão e reflexão (UATR) de etileno e propileno em EPDM

open access: yesPolímeros, 2014
Foi desenvolvida uma metodologia para a determinação dos teores de etileno (ET) e propileno (P) em amostras de borracha (elastômero puro, crua e vulcanizada), à base do copolímero de etileno-propileno-dieno monômero (EPDM), por espectroscopia no ...
Denis Damazio   +3 more
doaj   +1 more source

Amazonia 2040: Spatial‐explicit futures scenarios for the mosaic of protected areas in the Lower Rio Negro (MBRN), Brazil

open access: yesEcological Solutions and Evidence, Volume 7, Issue 2, April–June 2026.
Spatial‐explicit futures scenarios were applied in the Mosaic of Protected Areas of the Lower Rio Negro (MBRN), for co‐creating scenarios for the MBRN in the year 2040. Scenario making enabled negotiating desirable futures, aligning values and goals.
Marianna Birmoser Ferreira‐Aulu   +4 more
wiley   +1 more source

Experimental Determination of Temperature During Rotary Friction Welding of AA1050 Aluminum with AISI 304 Stainless Steel

open access: yesJournal of Aerospace Technology and Management, 2012
The purpose of this study was the temperature monitoring at bonding interface during the rotary friction welding process of dissimilar materials: AA1050 aluminum with AISI 304 stainless steel.
Eder Paduan Alves   +3 more
doaj  

Taxonomy of IMT Interference on Aeronautical Systems

open access: yesRadio 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

Espaço-tempo de Manaus: a natureza das águas na produção do espaço urbano. [PDF]

open access: yes, 2008
As part of the research about the urban transformations on the city of Manaus between the years of 1920 and 1967 the text argues about the contradictions of the urban space production that is drained of igarapés, which are used for several domestic ...
Oliveira, José Aldemir de
core  

LIQUID PROPULSION AT IAE: VISION OF THE ACTIVITIES AND FUTURE PERSPECTIVES. doi: 10.5028/jatm.2009.010199106

open access: yesJournal of Aerospace Technology and Management, 2011
This paper presents the activities in the area of liquid propulsion, which received an effective boost at the end of the 90s.
Marco F. Carvalho Torres   +4 more
doaj  

estar: An R package to measure ecological stability

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 4, Page 1090-1100, April 2026.
Abstract Assessing ecological stability is a key task in biodiversity monitoring and conservation. Quantifying stability is not trivial because its different aspects can be measured with various properties. However, to date, no software enables measuring different stability properties on ecological time‐series data.
Ludmilla Figueiredo   +6 more
wiley   +1 more source

Caderno Espaço Feminino.

open access: yes, 2010
Caderno Espaço Feminino n ...
Feminino, Caderno Espaço
core  

Do vazio ao labirinto: o espaço e a arte contemporânea: uma história das sensibilidades e percepções sobre o espaço através da arte contemporânea [PDF]

open access: yes, 2004
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Filosofia e Ciências Humanas. Programa de Pós-Graduação em História.O objetivo desta dissertação é refletir acerca de obras situadas entre as décadas de sessenta e setenta, de ...
Martino, Marlen Batista de
core  

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