Results 21 to 30 of about 1,756 (138)

Feasibility Study of Freeze Recovery Options in Parabolic Trough Collector Plants Working with Molten Salt as Heat Transfer Fluid

Energies, 2019
Parabolic trough collector (PTC) technology is currently the most mature solar technology, which has led to the accumulation of relevant operational experience. The overall performance and efficiency of these plants depends on several components, and the
Cristina Prieto, Alfonso Rodríguez-Sánchez, F. Javier Ruiz-Cabañas, Luisa F. Cabeza   +3 more
doaj   +1 more source

Testing VIPV Curved Modules: Methods and Challenges

Progress in Photovoltaics: Research and Applications, EarlyView.
This work presents procedures and equipment for characterizing curved vehicle‐integrated photovoltaic (VIPV) modules through STC I–V curve and relative angular response (RAR) measurements. Outdoor measurements are compared with indoor measurements obtained using a collimated‐light solar simulator, showing excellent agreement for STC I–V curves.
Ricardo Moruno, Francisco Martín, Juan Manuel Redondo, Javier Malo, Luis J. San José, Guido Vallerotto, Steve Askins, Rubén Núñez, César Domínguez, Ignacio Antón, Rebeca Herrero   +10 more
wiley   +1 more source

Robotics‐assisted acoustic surveys could deliver reliable, landscape‐level biodiversity insights

Remote Sensing in Ecology and Conservation, EarlyView.
Deploying and maintaining sensors is often a major bottleneck in collecting rapid biodiversity data. We tested whether autonomous hopping drones equipped with acoustic recorders could collect reliable biodiversity data in Costa Rica. Using 26,000+ hours of existing audio from 341 sites, with machine learning detections of 19 bird species and spider ...
Peggy A. Bevan, Cristina Banks‐Leite, Mirko Kovac, Jenna Lawson, Lorenzo Picinali, Sarab S. Sethi   +5 more
wiley   +1 more source

Limiting Efficiencies of Novel Solar Cell Concepts in Space

E3S Web of Conferences, 2017
In this work we study the limiting efficiency in space environmental conditions of three novel solar cell concepts (hot carrier solar cells, multiple exciton generation solar cells and intermediate band solar cells) and how this limiting efficiency is ...
Martí A., Datas A., González J.R., Baur C.   +3 more
doaj   +1 more source

Boosting Charge Carrier Mobilities in Upgraded Metallurgical Grade Silicon by Phosphorous Diffusion Gettering

Advanced Energy & Sustainability Research, 2022
Herein, it is demonstrated how the carrier mobility and carrier lifetime of upgraded‐metallurgical grade silicon (UMG‐Si), a feedstock alternative to electronic‐grade, high‐purity polysilicon dominating photovoltaic technology, can be largely improved ...
Sergio Revuelta, Nerea Dasilva-Villanueva, David Fuertes Marrón, Carlos del Cañizo, Enrique Cánovas   +4 more
doaj   +1 more source

Business Model and Sustainable Development Goals for an Innovative Agricultural Waste Management: Distributed Biogas Production

Sustainable Development, EarlyView.
ABSTRACT Technological progress and population growth have increased global pork demand; leading to a rise of methane emission from pig farming, a key contributor to climate change. Anaerobic digestion offers a sustainable solution by converting manure into biogas.
María‐Pilar Martínez‐Hernando, Carlos Reparaz, Roberto Paredes, Enrique Garcia‐Franco, Alfonso García Álvaro, Marcelo F. Ortega   +5 more
wiley   +1 more source

Exploring the exploration: implications of leaving or remaining at the natal site during the early stages of independence in a partially migratory bird

Ibis, EarlyView.
Despite being an important fraction of any animal population, juveniles are a severely understudied group. Juveniles often need to learn an array of skills that allow them to survive independently and do so while undertaking decisions that may impact their fitness, recruitment and survival, having therefore relevant demographic implications.
Manuela S. Rodrigues, Afonso D. Rocha, João P. Silva, Carlos Carrapato, Jaime A. Ramos, Pedro M. Araújo, José A. Alves   +6 more
wiley   +1 more source

ESTADO ACTUAL DEL DESARROLLO DE CELDAS SOLARES DE SILICIO EN LA CNEA

Anales (Asociación Física Argentina), 2013
Se presenta el estado de avance del desarrollo de celdas solares de silicio monocristalino en la CNEA. Se elaboraron celdas solares a partir de obleas de silicio cristalino tipo p, obteniendo las junturas frontal y posterior por difusión de los dopantes ...
C. G. Bolzi, C. J. Bruno, E. Campitelli, J. C. Durán, E. M. Godfrin, A. Lamagna, L. M. Merino, J. C. Plá, G. L. Venier   +8 more
doaj  

Deciphering the complex life cycle and partial migration of an ecological engineer and critical Neotropical fishery species, Prochilodus costatus

Journal of Fish Biology, EarlyView.
Abstract Understanding complex migration patterns, including drivers of partial migration and habitat use, is challenging but essential for conservation, as it determines a species' adaptative capacity in the face of environmental change and anthropogenic threats.
Alexandre Peressin, João de Magalhães Lopes, Francisco Ricardo Andrade Neto, Gilmara Junqueira Machado, Carlos Bernardo Mascarenhas Alves, Luis David Solis Murgas, Paulo Santos Pompeu   +6 more
wiley   +1 more source

Technical Evaluation of a Stand-Alone Photovoltaic Heat Pump Dryer without Batteries

Energies
This paper presents the results of the technical validation of an innovative prototype for drying alfalfa bales. It is based on a 4.1 kW Heat Pump (HP) that uses an advanced technology (optimized for extracting the humidity from the air) and is directly ...
Antonio Quijano, Celena Lorenzo, Antonio Berlanga, Luis Narvarte   +3 more
doaj   +1 more source