A5004224763- Marine Biology and Ecology Research
- Marine and coastal ecosystems
- Natural Fiber Reinforced Composites
- Environmental Toxicology and Ecotoxicology
- Marine Bivalve and Aquaculture Studies
- biodegradable polymer synthesis and properties
- Structural Behavior of Reinforced Concrete
- Marine Toxins and Detection Methods
- Additive Manufacturing and 3D Printing Technologies
- Textile materials and evaluations
- Mechanical Behavior of Composites
- Marine and coastal plant biology
- Groundwater and Isotope Geochemistry
- Oceanographic and Atmospheric Processes
- Mercury impact and mitigation studies
- Toxic Organic Pollutants Impact
- Environmental and Ecological Studies
- Advanced Fiber Optic Sensors
- Ocean Acidification Effects and Responses
- Concrete Corrosion and Durability
- Wastewater Treatment and Nitrogen Removal
- Atmospheric and Environmental Gas Dynamics
- Geology and Paleoclimatology Research
- Manufacturing Process and Optimization
- Marine and fisheries research
Universidade do Porto
2011-2025
Institute of Mechanical Engineering and Industrial Mangement
2016-2025
Instituto de Ciência e Inovação em Engenharia Mecânica e Engenharia Industrial
2023-2025
Centro Científico Tecnológico Patagónico
2007-2024
Consejo Nacional de Investigaciones Científicas y Técnicas
1992-2020
Portuguese Air Transportations (Portugal)
2017
The biogeochemical cycling of carbon, water, energy, aerosols, and trace gases in the Amazon Basin was investigated project European Studies on Trace Gases Atmospheric Chemistry as a Contribution to Large‐Scale Biosphere‐Atmosphere Experiment Amazonia (LBA‐EUSTACH). We present an overview design project, measurement sites methods, meteorological conditions during experiment. main results from LBA‐EUSTACH are: Eddy correlation studies three regions consistently show large net carbon sink...
Abstract Butyltins (BTs), polyaromatic hydrocarbons (PAHs), organochlorine pesticides (OCPs), and polychlorinated biphenyls (PCBs) were assessed in a mid‐latitude environment of the Patagonian coast, distant from significant pollutant sources. Bioaccumulation processes through bottom sediment resuspension suggested by BTs level (expressed as ng tin [Sn] g –1 dry wt) found surface (<limit detection [LOD]–166.5 bivalve mollusks (29.4–206.0 wt); whereas imposex incidence was only 15%...
Composite materials are increasingly being implemented in various solutions, ranging from conventional applications, like furniture, to more advanced ones, such as aerospace, based on their excellent properties, high mechanical strength and low weight. There applications which these coupled other parts. To achieve this connection, drilling processes commonly used. Drilling causes irreversible damage the material, influences of plates. This study was conducted 48 carbon/epoxy plates, each...
Hg, Cd, Pb, Cu and Zn were analyzed in mollusks, crustaceans (soft tissue -µg/g dry weight), seabirds marine mammals (kidney, liver muscle wet from Patagonian coast of Argentina.Levels Hg undetected or very low.Higher than allowable Cd levels for human consumption recorded some mollusks (up to 6.75 µg/g), even though its origin would be mainly natural.Pb concentrations San Antonio bay (10.00 -13.20 µg/g) related an old mining activity.Contents most cases within the ranges reported literature.
Oceanographic data collected during 2001Oceanographic -2003 on the Patagonian Continental Shelf of Argentina were analyzed in order to study main chemical features this large shelf.The variation inorganic nutrients and chlorophyll-a summer fall an area within 40 60 km from coast are presented.Nitrate is limiting nutrient region negatively correlated chlorophyll-a.All variables show localized variations summer, which can be related tidal fronts through comparison our with critical Simpson...
In this work, the mechanical behavior of polyhyroxyalkanoate (PHA)/poly(lactic acid) (PLA) blends is investigated in a wide range compositions. The properties can be optimized by varying PHA contents blend. flexural and tensile were estimated different models: rule mixtures, Kerner–Uemura–Takayanagi (KUT) model, Nicolai–Narkis model Béla–Pukánsky model. This study was aimed at investigating adhesion between two material phases. results anticipate good both Nevertheless, for low levels...
This work focused on the development of composite structures fully based natural materials. The developed sandwich are fibers and cork acting as a core. used resulted from compounding flax with bio-resin. core material is agglomerated cork. aim this study to compare these against similar synthetic sandwiches fiberglass epoxy resin. Several laminates were produced then subjected static dynamic mechanical testing, carried out via bending impacts tests respectively. After carefully analyzing...
Fiber reinforced composites are widely used in the production of parts for load bearing structures. It is generally recognized that can be affected both by monotonic and cyclic loading. For assembly purposes, drilling needed, but holes act as stress concentration notches, leading to damage propagation failure. In this work, a batch carbon/epoxy plates drilled different drill geometries, while thrust force monitored hole's surrounding region inspected. Based on radiographic images, area other...
The marine dinoflagellate genus Dinophysis Ehrenberg is globally distributed in coastal and oceanic waters can produce lipophilic toxins. These toxins accumulate filter-feeding shellfish cause diarrhetic poisoning (DSP). Between 2009 2011 the two most frequent abundant species found North Patagonian gulfs were tripos Gourret acuminata Claparéde Lachmann, 2015 D. was only toxic moderate to high relative abundances when mouse bioassay results for DSP positive. positive from agree with of it...
In this work we present the thermal characterization of full scope polyhydroxyalcanoate and poly(lactic acid) blends obtain by injection molding. Blends (PHA/PLA) were prepared in different compositions ranging from 0–100% steps 10%. The molded then characterized differential scanning calorimetry (DSC), electron microscopy (SEM) wide angle X-ray diffraction (WAXD). increment PHA fraction increased degree crystallinity blend miscibility base polymers as verified Fox model. WAXD analysis...