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Now showing items 4511-4520 of 4794
Use of Temperature Controlled Stage Confocal Raman Microscopy to Study Phase Transition of Lead Dioxide (Plattnerite)
(MDPI, 2020-05-21)
The present work concerns the study of the phase transition of plattnerite [β-PbO2 lead (IV) oxide]-based samples when they are analysed by Raman spectroscopy. The laser-induced degradation process was carried out either ...
Improving Knowledge about the Sustainable Development Goals through a Collaborative Learning Methodology and Serious Game
(MDPI, 2020-07-30)
The university is a key agent in the process of transformation towards sustainability within the framework of the 2030 Agenda. This study aims to analyze the usefulness of the collaborative learning methodology through a ...
Multilayer hazes over Saturn’s hexagon from Cassini ISS limb images
(Nature, 2020-05-08)
In June 2015, Cassini high-resolution images of Saturn's limb southwards of the planet's hexagonal wave revealed a system of at least six stacked haze layers above the upper cloud deck. Here, we characterize those haze ...
Corruption perception following privatization reforms: the moderating role of governance
(Universidad de Murcia, 2020-01-01)
Este estudio analiza la corrupción percibida tras las reformas de privatización, teniendo en cuenta el papel
del buen gobierno, en 22 países europeos entre 2002 y 2013. Un primer análisis inicial no revela cambios
relevante ...
Transformation in economic studies via problem-based learning: facing fears to acquire professional skills
(Taylor and Francis Group, 2020-10-20)
Over the last 40 years, the learning process in university studies has
gradually shifted from a teacher-centered approach to a studentcentered
approach. Economic and Business studies are a suitable
sector for active ...
Novel control algorithm for MPPT with Boost converters in photovoltaic systems
(Elsevier, 2017-07)
The great advances in efficiency and performance of photovoltaic modules would not be very useful if they do not work close to their maximum power point (MPP). In this paper a novel Sliding Mode Control (SMC) based algorithm ...
Contributions of Bottom-Up Energy Transitions in Germany: A Case Study Analysis
(MDPI, 2017-04)
Within the context of an energy transition towards achieving a renewable low-impact energy consumption system, this study analyses how bottom-up initiatives can contribute to state driven top-down efforts to achieve the ...
Microtab design and implementation on a 5MW wind turbine
(MDPI, 2017-05-24)
Microtabs (MT) consist of a small tab placed on the airfoil surface close to the trailing edge and perpendicular to the surface. A study to find the optimal position to improve airfoil aerodynamic performance is presented. ...
Robust labeling of human motion markers in the presence of occlusions
(Elsevier, 2019-08-11)
Human motion capture by optical sensors produces snapshots of the motion of a cloud of points that need to be labeled in order to carry out ensuing motion analysis for medical or other purposes. We generate the labeling ...
Power Control Optimization of an Underwater Piezoelectric Energy Harvester
(MDPI, 2018-03)
Over the past few years, it has been established that vibration energy harvesters with intentionally designed components can be used for frequency bandwidth enhancement under excitation for sufficiently high vibration ...