- Analytical Chemistry and Sensors
- Concrete and Cement Materials Research
- Advanced Fiber Optic Sensors
- Solid-state spectroscopy and crystallography
- Smart Materials for Construction
- Advanced Chemical Physics Studies
- Concrete Corrosion and Durability
- Stellar, planetary, and galactic studies
- Astronomy and Astrophysical Research
- Astronomical Observations and Instrumentation
- Concrete Properties and Behavior
- Black Holes and Theoretical Physics
- Effects of Radiation Exposure
- Sports Performance and Training
- Mechanical and Optical Resonators
- Educational Practices and Policies
- Synthesis and biological activity
- Health, Nursing, Elderly Care
- Innovative concrete reinforcement materials
- Pigment Synthesis and Properties
- Advanced NMR Techniques and Applications
- Atomic and Subatomic Physics Research
- Advanced Differential Geometry Research
- History, Culture, and Society
- Simulation Techniques and Applications
Instituto Português de Oncologia Francisco Gentil
2023
Universidade do Porto
2015-2023
INESC TEC
2021-2023
Institute of Astrophysics and Space Sciences
2020
Karlsruhe Institute of Technology
2019
Zenit Trading (Russia)
2015
Universidad Autónoma de Madrid
2000
The relative space per player formulated in small-sided and conditioned games can be manipulated either by promoting variations numbers or modifying field dimensions. In this study we analysed how the same spaces player, obtained through manipulations of dimensions, influenced inter-individual coordination. positional data (GPS, 10 Hz) 24 U-15 yrs performing three different (118, 133 152m2) was used. Inter-individual behavioural measures included: (i) effective (ii) radius free movement;...
The decaying nature of magnetic resonance (MR) signals results in a decreasing signal-to-quantization noise ratio (SQNR) over the acquisition time. Here we describe method to enhance SQNR, and thus overall signal-to-noise (SNR), by dynamically adapting gain receiver before analog-to-digital conversion (ADC). This is contrast standard experiment which fixed for single data adjusted only first points signal. adjustment our done automatically closed loop fashion using envelope MR signal as...
Water vapor sorption is a powerful tool for the analysis of cement paste, one most used substances by mankind. The monitoring cementitious materials fundamental improvement infrastructure resilience, which has deep impact on economy, environment, and society. In this work, multimode fiber was embedded in paste real-time water sorption. Changes reflected light intensity due to build-up paste’s pores were exploited purpose. sample 7-day moist cured, relative humidity controlled between 8.9%...
Reinforced concrete structures are prevalent in infrastructure and of significant economic social importance to humanity. However, they prone decay from cement paste carbonation. pH sensors have been developed monitor carbonation, but their adoption by the industry remains limited. This work introduces two new methods for monitoring carbonation real time that validated through accelerated samples. Both configurations depart traditional monitoring. In first configuration, depth a sample is...
Reinforced concrete structures are an essential part of our modern society, and monitoring their structural health is paramount importance. Early detection decay allows for the reduction repair costs and, more importantly, prevention catastrophic failure. For this purpose, a single fiber reflectance spectrometer was embedded in cement paste samples water at tip through its sensitivity to changes refractive index. It monitored curing with different water-to-cement ratios (w/c), between 0.45...
<h2>Abstract</h2><h3>Introduction</h3> : Most of radiation oncology centers rely on set-up skin markings for patient setup during treatment delivery. Permanent dark-ink tattooing is the most popular marking method. COMFORTATTOO a unicentric, randomized trial testing two permanent methods: lancets against an electric pen (Comfort Marker 2.0, CM). One substudy was undertaken to test if using CM translates into cosmesis, fading, or satisfaction benefit compared lancets. <h3>Methods</h3>...
High precision time series photometry from space is being used for a number of scientific cases. In this context, the recently launched CHEOPS (ESA) mission promises to bring 20 ppm over an exposure 6 hours, when targeting nearby bright stars, having in mind detailed characterization exoplanetary systems through transit measurements. However, official pipeline only provides main target (the central star field). order explore potential all stars field, paper we present archi, additional...
Abstract The use of concrete has been widespread in our society housing and infrastructure, despite the environmental cost associated with its production. Its decay poses a social, economic, problem. Currently, carbonation cement paste is monitored through measurement pH, several optical fiber sensors (OFS) have produced for this purpose. In current work focus is, also, on monitoring an OFS, but not pH measurements. Single reflectance spectroscopy, previously employed to measure durability,...