Results 71 to 80 of about 774,175 (214)

Estruturas e características de veículos híbridos e eléctricos [PDF]

open access: yes, 2010
Nas últimas décadas tem-se assistido a um forte desenvolvimento dos veículos eléctricos, sobretudo das soluções híbridas, como resposta aos impactos ambientais e económicos dos combustíveis fósseis.
Melo, Pedro Miguel Azevedo de Sousa
core   +2 more sources

Stemflow Dynamics in the Jamari National Forest (Brazilian Amazon): II. Solute Concentrations and Flux Dynamics

open access: yesBiotropica, Volume 58, Issue 2, March 2026.
Trees can redirect large volumes of rainwater to the base of their stems. This stemflow not only redistributes water but also channels canopy‐derived solutes to the forest floor. Building on research showing canopy geometry and bark properties govern stemflow volumes, we examined how those same traits modulate the biogeochemical side of this flux. Over
Jeferson Alberto de Lima   +5 more
wiley   +1 more source

Análise de estruturas antigas e novas em alvenaria: possibilidades e aplicações [PDF]

open access: yes, 2010
A avaliação do desempenho sísmico de estruturas representa ainda um desafio complexo. A presente comunicação apresenta uma revisão dos métodos de análise sísmica de estruturas de alvenaria, com e sem diafragmas rígidos.
Lourenço, Paulo B.   +3 more
core  

Abundance and Seasonal Dynamics of Guiana Dolphins (Sotalia guianensis) in Southern Brazilian Estuarine and Adjacent Coastal Waters

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 2, February 2026.
ABSTRACT Estimating population parameters is crucial for understanding species dynamics and assessing anthropogenic impacts, thereby supporting conservation efforts. We evaluate key population parameters—group structure, abundance and capture–recapture probabilities—of the Guiana dolphin in the Paranaguá Estuarine Complex and adjacent coastal waters ...
Stephane P. G. de Moura   +3 more
wiley   +1 more source

Comportamento de concretos moldados com armadura galvanizada frente à corrosão por cloretos

open access: yesRevista Principia
As estruturas de concreto armado frequentemente sofrem corrosão das armaduras em ambientes de agressividade marinha, uma patologia recorrente e onerosa para a indústria da construção.
Mariane Rodrigues de Carvalho   +2 more
doaj   +1 more source

Modelos simplificados para a avaliação de estruturas existentes de B.A. e optimização do seu reforço [PDF]

open access: yes, 2004
O estudo e desenvolvimento de metodologias simplificadas para a análise nãolinear dinâmica de estruturas irregulares, e, o desenvolvimento de ferramentas numéricas para a optimização de reforço têm um papel principal na avaliação e reforço de ...
Costa, A.   +3 more
core   +1 more source

As estruturas elementares da violência [PDF]

open access: yes, 2007
Universidade Federal de São Paulo (UNIFESP ...
Pereira, Pedro Paulo Gomes
core   +2 more sources

Experimental and Computational Raman and SERS Study of Acid Blue 113

open access: yesJournal of Raman Spectroscopy, Volume 57, Issue 2, Page 239-254, February 2026.
The vibrational features of AB‐113 were investigated through experimental and theoretical analyses. SERS spectra showed enhanced responses under resonant excitation, especially at 532 and 632.8 nm, enabling identification limits as low as 1.0 × 10−8 mol L−1.
Thayla C. A. Coelho   +2 more
wiley   +1 more source

Spatial Analysis of Agricultural Waste and By‐Products to Tackle the Water–Energy Nexus in Rural Mozambique

open access: yesGlobal Challenges, Volume 10, Issue 1, January 2026.
This study presents a geographic information system‐based, participatory methodology to identify high‐potential zones for agricultural waste valorization in rural Mozambique. By integrating spatial data with local knowledge, it reveals opportunities for bioenergy production and sustainable water use. The findings support circular development strategies,
Giuseppe Mancuso   +4 more
wiley   +1 more source

An alternative technique to the demolition of a prestressed concrete box-girder bridge: A case study

open access: yesCase Studies in Construction Materials, 2017
This is a case study in which the partial collapse of a prestressed concrete box-girder bridge in Brazil happened only nine days after removing the supporting scaffolding.
S.S.R. Pereira   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy