4 documents found, page 1 of 1
GEE_xtract: High-quality remote sensing data preparation and extraction for mul...
Valerio, Francesco; Godinho, Sérgio; Marques, Ana T.; Crispim-Mendes, Tiago; Pita, Ricardo; Silva, João PauloEnvironmental sensing via Earth Observation Satellites (EOS) is critically important for understanding Earth’ biosphere. The last decade witnessed a “Klondike Gold Rush” era for ecological research given a growing multidisciplinary interest in EOS. Presently, the combination of repositories of remotely sensed big data, with cloud infrastructures granting exceptional analytical power, may now mark the emergence ...
Wind turbines cause functional habitat loss for migratory soaring birds
Marques, Ana T.; Santos, Carlos D.; Hanssen, Frank; Muñoz, Antonio‐Román; Onrubia, Alejandro; Wikelski, Martin; Moreira, Francisco; M. Palmeirim, JorgeWind energy production has expanded to meet climate change mitigation goals, but negative impacts of wind turbines have been reported on wildlife. Soaring birds are among the most affected groups with alarming fatality rates by collision with wind turbines and an escalating occupation of their migratory corridors. These birds have been described as changing their flight trajectories to avoid wind turbines, but ...
Effects of Charge Density on Photophysics and Aggregation Behavior of Anionic F...
Martelo, Liliana M.; Fonseca, Sofia M.; Marques, Ana T.; Burrows, Hugh D.; Valente, Artur J. M.; Justino, Licínia L. G.; Scherf, UllrichThree anionic fluorene-based alternating conjugated polyelectrolytes (CPEs) have been synthesized that have 9,9-bis(4-phenoxy-butylsulfonate) fluorene-2,7-diyl and 1,4-phenylene (PBS-PFP), 4,4'-biphenylene (PBS-PFP2), or 4,4″-p-terphenylene (PBS-PFP3) groups, and the effect of the length of the oligophenylene spacer on their aggregation and photophysics has been studied. All form metastable dispersions in water...
Energy Transfer from Fluorene Based Conjugated Polyelectrolytes to Onchain and ...
Marques, Ana T.; Pinto, Sara M. A.; Monteiro, Carlos J. P.; Melo, J. Sérgio Seixas de; Burrows, Hugh D.; Scherf, Ullrich; Calvete, Mário J. F.A new water soluble fluorene-based polyelectrolyte containing on-chain porphyrin units has been synthesized via Suzuki coupling, for use in optoelectronic devices. The material consist of a random copolymer of poly{1,4-phenylene-[9,9-bis(4-phenoxy butylsulfonate)]fluorene-2,7-diyl} (PBS-PFP) and a 5,15-diphenylporphyrin (DPP). The energy transfer process between the PBS-PFP units and the porphyrin has been inve...