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description Publicationkeyboard_double_arrow_right Article , Journal , Other literature type 2012Publisher:Elsevier BV Funded by:EC | HYDROSOL-3DEC| HYDROSOL-3DAuthors: Säck, J.-P.;Roeb, M.;
Roeb, M.
Roeb, M. in OpenAIRESattler, C.;
Sattler, C.
Sattler, C. in OpenAIREPitz-Paal, R.;
+1 AuthorsPitz-Paal, R.
Pitz-Paal, R. in OpenAIRESäck, J.-P.;Roeb, M.;
Roeb, M.
Roeb, M. in OpenAIRESattler, C.;
Sattler, C.
Sattler, C. in OpenAIREPitz-Paal, R.;
Heinzel, Angelika;Pitz-Paal, R.
Pitz-Paal, R. in OpenAIREAbstract An attractive path to the production of hydrogen from water is a two-step thermo chemical cycle powered by concentrated sunlight from a solar tower system. In the first process step the redox system, a ferrite coated on a monolithic honeycomb absorber, is present in its reduced form while the concentrated solar energy hits the ceramic absorber. When water vapour is fed to the honeycomb at 800 °C, oxygen is abstracted from the water molecules, bond in the redox system and hydrogen is produced. When the metal oxide system is completely oxidised it is heated up for regeneration at 1100–1200 °C in an oxygen-lean atmosphere. Under those conditions and in the second process step, oxygen is set free from the redox system, so the metal oxide is being reduced and after completion of the reaction again capable for water splitting. Since the overall process consists of two core reaction steps, which need to be carried out sequentially in a reactor unit at two different temperature steps, a special process and plant concept had to be developed enabling the continuous supply of product regardless of the alternating nature of the solar reactor operation. The challenge of the process control is to keep the two core reaction temperatures constant and to ensure regular temperature switches after completion of the individual process steps, independent of the weather conditions, like DNI fluctuation, clouds and wind speed. Also start-up, the fast switching after completion of half-cycles and the shutdown must be controlled. State of the art is the manual switching of heliostats to fulfil those control tasks. This paper describes the development and use of a system model of this process. The model consists of three main parts: the simulation of the solar flux distribution at the receiver aperture, the simulation of the temperatures in the reactor modules and the simulation of the hydrogen generation. It can be used for the analysis of the operational behaviour. The model is intended to be used in the future for the control of the whole process.
Solar Energy arrow_drop_down http://dx.doi.org/doi:10.1016/...Other literature typeData sources: European Union Open Data PortalUniversitätsbibliographie, Universität Duisburg-EssenArticle . 2012Data sources: Universitätsbibliographie, Universität Duisburg-Essenadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.solener.2011.09.010&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu36 citations 36 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!
more_vert Solar Energy arrow_drop_down http://dx.doi.org/doi:10.1016/...Other literature typeData sources: European Union Open Data PortalUniversitätsbibliographie, Universität Duisburg-EssenArticle . 2012Data sources: Universitätsbibliographie, Universität Duisburg-Essenadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.solener.2011.09.010&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2015 NetherlandsPublisher:The Pennsylvania State University Press Funded by:EC | GPEC| GPAuthors: John Feddersen;Florian Habermacher;
Jan Imhof; Rick van der Ploeg;Florian Habermacher
Florian Habermacher in OpenAIRENordhaus (1973) has in his seminal contribution addressed two emerging questions in the field of energy economics. First, how do current market prices of natural resources reflect true scarcity fro...
Journal of Natural R... arrow_drop_down Journal of Natural Resources Policy ResearchArticle . 2015Data sources: DANS (Data Archiving and Networked Services)Journal of Natural Resources Policy ResearchArticle . 2015http://dx.doi.org/10.1080/1939...Article . Peer-reviewedData sources: European Union Open Data Portaladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1080/19390459.2015.1039238&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
more_vert Journal of Natural R... arrow_drop_down Journal of Natural Resources Policy ResearchArticle . 2015Data sources: DANS (Data Archiving and Networked Services)Journal of Natural Resources Policy ResearchArticle . 2015http://dx.doi.org/10.1080/1939...Article . Peer-reviewedData sources: European Union Open Data Portaladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1080/19390459.2015.1039238&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal , Other literature type 2011 NetherlandsPublisher:Wiley Funded by:EC | INTERACTEC| INTERACTAuthors:Lorna E. Street;
Terry V. Callaghan; Terry V. Callaghan;Lorna E. Street
Lorna E. Street in OpenAIREGareth K. Phoenix;
+2 AuthorsGareth K. Phoenix
Gareth K. Phoenix in OpenAIRELorna E. Street;
Terry V. Callaghan; Terry V. Callaghan;Lorna E. Street
Lorna E. Street in OpenAIREGareth K. Phoenix;
Gareth K. Phoenix
Gareth K. Phoenix in OpenAIREStef Bokhorst;
Stef Bokhorst
Stef Bokhorst in OpenAIREJarle W. Bjerke;
Jarle W. Bjerke
Jarle W. Bjerke in OpenAIREAbstractExtreme weather events can have strong negative impacts on species survival and community structure when surpassing lethal thresholds. Extreme, short‐lived, winter warming events in the Arctic rapidly melt snow and expose ecosystems to unseasonably warm air (for instance, 2–10 °C for 2–14 days) but upon return to normal winter climate exposes the ecosystem to much colder temperatures due to the loss of insulating snow. Single events have been shown to reduce plant reproduction and increase shoot mortality, but impacts of multiple events are little understood as are the broader impacts on community structure, growth, carbon balance, and nutrient cycling. To address these issues, we simulated week‐long extreme winter warming events – using infrared heating lamps and soil warming cables – for 3 consecutive years in a sub‐Arctic heathland dominated by the dwarf shrubsEmpetrum hermaphroditum, Vaccinium vitis‐idaea(both evergreen) andVaccinium myrtillus(deciduous). During the growing seasons after the second and third winter event, spring bud burst was delayed by up to a week forE. hermaphroditumandV. myrtillus, and berry production reduced by 11–75% and 52–95% forE. hermaphroditumandV. myrtillus, respectively. Greater shoot mortality occurred inE. hermaphroditum(up to 52%),V. vitis‐idaea(51%), andV. myrtillus(80%). Root growth was reduced by more than 25% but soil nutrient availability remained unaffected. Gross primary productivity was reduced by more than 50% in the summer following the third simulation. Overall, the extent of damage was considerable, and critically plant responses were opposite in direction to the increased growth seen in long‐term summer warming simulations and the ‘greening’ seen for some arctic regions. Given the Arctic is warming more in winter than summer, and extreme events are predicted to become more frequent, this generates large uncertainty in our current understanding of arctic ecosystem responses to climate change.
Global Change Biolog... arrow_drop_down Global Change BiologyArticle . 2011 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: CrossrefGlobal Change BiologyArticle . 2011http://dx.doi.org/10.1111/j.13...Other literature typeData sources: European Union Open Data Portaladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1111/j.1365-2486.2011.02424.x&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu166 citations 166 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!
more_vert Global Change Biolog... arrow_drop_down Global Change BiologyArticle . 2011 . Peer-reviewedLicense: Wiley Online Library User AgreementData sources: CrossrefGlobal Change BiologyArticle . 2011http://dx.doi.org/10.1111/j.13...Other literature typeData sources: European Union Open Data Portaladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1111/j.1365-2486.2011.02424.x&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2020Publisher:Royal Society of Chemistry (RSC) Funded by:EC | MFPEC| MFPAuthors:Alfonsina Abat Amelenan Torimtubun;
Alfonsina Abat Amelenan Torimtubun
Alfonsina Abat Amelenan Torimtubun in OpenAIREJosé G. Sánchez;
José G. Sánchez
José G. Sánchez in OpenAIREJosep Pallarès;
Josep Pallarès
Josep Pallarès in OpenAIRELluis F. Marsal;
Lluis F. Marsal
Lluis F. Marsal in OpenAIREdoi: 10.1039/d0se00353k
Organic photovoltaics (OPVs) have a promising future in reliable energy harvesting to drive low power consumption devices for indoor applications.
Sustainable Energy &... arrow_drop_down Sustainable Energy & FuelsArticle . 2020 . Peer-reviewedLicense: Royal Society of Chemistry Licence to PublishData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1039/d0se00353k&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu36 citations 36 popularity Top 1% influence Top 10% impulse Top 10% Powered by BIP!
more_vert Sustainable Energy &... arrow_drop_down Sustainable Energy & FuelsArticle . 2020 . Peer-reviewedLicense: Royal Society of Chemistry Licence to PublishData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1039/d0se00353k&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal , Other literature type 2015 Italy, Netherlands, NetherlandsPublisher:Elsevier BV Funded by:EC | EARTH2OBSERVEEC| EARTH2OBSERVEAuthors:Dorigo Wouter A;
Dorigo Wouter A
Dorigo Wouter A in OpenAIREGruber Alexander;
De Jeu Richard A M;Gruber Alexander
Gruber Alexander in OpenAIREWagner Wolfgang;
+7 AuthorsWagner Wolfgang
Wagner Wolfgang in OpenAIREDorigo Wouter A;
Dorigo Wouter A
Dorigo Wouter A in OpenAIREGruber Alexander;
De Jeu Richard A M;Gruber Alexander
Gruber Alexander in OpenAIREWagner Wolfgang;
Wagner Wolfgang
Wagner Wolfgang in OpenAIREStacke Tobias;
Loew Alexander; Albergel Clément;Stacke Tobias
Stacke Tobias in OpenAIREBrocca Luca;
Chung Daniel; Parinussa Robert M; Kidd Richard A;Brocca Luca
Brocca Luca in OpenAIREIn this study we evaluate the skill of a new, merged soil moisture product (ECV_SM) that has been developed in the framework of the European Space Agency's Water Cycle Multi-mission Observation Strategy and Climate Change Initiative projects. The product combines in a synergistic way the soil moisture retrievals from four passive (SMMR, SSM/I, TMI, and AMSR-E) and two active (ERS AMI and ASCAT) coarse resolution microwave sensors into a global data set spanning the period 1979-2010. The evaluation uses ground-based soil moisture observations of 596 sites from 28 historical and active monitoring networks worldwide. Besides providing conventional measures of agreement, we use the triple collocation technique to assess random errors in the data set. The average Spearman correlation coefficient between ECV_SM and all in-situ observations is 0.46 for the absolute values and 0.36 for the soil moisture anomalies, but differences between networks and time periods are very large. Unbiased root-mean-square differences and triple collocation errors show less variation between networks, with average values around 0.05 and 0.04m3m-3, respectively. The ECV_SM quality shows an upward trend over time, but a consistent decrease of all performance metrics is observed for the period 2007-2010. Comparing the skill of the merged product with the skill of the individual input products shows that the merged product has a similar or better performance than the individual input products, except with regard to the ASCAT product, compared to which the performance of ECV_SM is inferior. The cause of the latter is most likely a combination of the mismatch in sampling time between the satellite observations and in-situ measurements, and the resampling and scaling strategy used to integrate the ASCAT product into ECV_SM on the other. The results of this study will be used to further improve the scaling and merging algorithms for future product updates.
Remote Sensing of En... arrow_drop_down Remote Sensing of EnvironmentArticle . 2014Data sources: DANS (Data Archiving and Networked Services)Remote Sensing of EnvironmentArticle . 2015 . Peer-reviewedLicense: Elsevier TDMData sources: CrossrefRemote Sensing of EnvironmentArticle . 2014http://dx.doi.org/10.1016/j.rs...Other literature typeData sources: European Union Open Data Portaladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.rse.2014.07.023&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu476 citations 476 popularity Top 0.1% influence Top 1% impulse Top 0.1% Powered by BIP!
more_vert Remote Sensing of En... arrow_drop_down Remote Sensing of EnvironmentArticle . 2014Data sources: DANS (Data Archiving and Networked Services)Remote Sensing of EnvironmentArticle . 2015 . Peer-reviewedLicense: Elsevier TDMData sources: CrossrefRemote Sensing of EnvironmentArticle . 2014http://dx.doi.org/10.1016/j.rs...Other literature typeData sources: European Union Open Data Portaladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.rse.2014.07.023&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2015 NetherlandsPublisher:Royal Society of Chemistry (RSC) Funded by:EC | PHOTPROTEC| PHOTPROTAuthors:Vladimir I. Novoderezhkin;
Vladimir I. Novoderezhkin
Vladimir I. Novoderezhkin in OpenAIREElisabet Romero;
Rienk van Grondelle;Elisabet Romero
Elisabet Romero in OpenAIRETwo-dimensional photon echo in the photosystem II reaction center reveals the exciton-vibrational coherences that promote directed energy/electron transfers.
Physical Chemistry C... arrow_drop_down Physical Chemistry Chemical PhysicsArticle . 2015Data sources: DANS (Data Archiving and Networked Services)Physical Chemistry Chemical PhysicsArticle . 2015http://dx.doi.org/10.1039/c5cp...Article . Peer-reviewedData sources: European Union Open Data Portaladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1039/c5cp00582e&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu65 citations 65 popularity Top 10% influence Top 10% impulse Top 1% Powered by BIP!
more_vert Physical Chemistry C... arrow_drop_down Physical Chemistry Chemical PhysicsArticle . 2015Data sources: DANS (Data Archiving and Networked Services)Physical Chemistry Chemical PhysicsArticle . 2015http://dx.doi.org/10.1039/c5cp...Article . Peer-reviewedData sources: European Union Open Data Portaladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1039/c5cp00582e&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Part of book or chapter of book , Other literature type 2021 ItalyPublisher:Springer Singapore Funded by:EC | CLICEC| CLICAuthors: Luigi Fusco Girard;handle: 20.500.14243/402972
The general thesis of this contribution is that metropolitan cities—mostly port cities, also characterized most of the time by a relevant historical-architectural landscape—can reduce their agglomeration diseconomies if they adopt a ‘circular’ model of organization. The ‘territorialized’ model of circular economy is the ‘circular city’ model, which puts its centre with its suburbs, its historical centre with the port, and the consolidated city with the suburban territory in virtuous relationships. This chapter focuses on the multidimensional benefits of the circular economy and circular city model from an evaluation perspective, identifying an analytical list of indicators emerging from operational practice and the scientific literature. A multidimensional and multicriteria assessment method is used in the metropolitan city of Naples, Italy, to support the planning process for development of the port area from the perspective of the circular economy and circular city model. The originality of this assessment consists, on the one hand, in assuming evaluation criteria emerging from the strategy of the European Green Deal and, on the other hand, in focusing on the integration of the indicators proposed by the World Health Organization related to the Health Impact Assessment in a perspective that integrates environmental, economic and social impacts assessments.
https://doi.org/10.1... arrow_drop_down https://doi.org/10.1007/978-98...Part of book or chapter of book . 2021 . Peer-reviewedLicense: Springer TDMData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1007/978-981-33-4098-5_16&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu2 citations 2 popularity Top 10% influence Average impulse Average Powered by BIP!
more_vert https://doi.org/10.1... arrow_drop_down https://doi.org/10.1007/978-98...Part of book or chapter of book . 2021 . Peer-reviewedLicense: Springer TDMData sources: Crossrefadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1007/978-981-33-4098-5_16&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal , Other literature type 2016 NetherlandsPublisher:Elsevier BV Funded by:EC | SUNEC| SUNAuthors:M. Nazaret González-Alcaraz;
M. Nazaret González-Alcaraz
M. Nazaret González-Alcaraz in OpenAIRECornelis A.M. van Gestel;
Cornelis A.M. van Gestel
Cornelis A.M. van Gestel in OpenAIREThis study aimed at assessing the effects of global warming (increasing air temperature and decreasing soil moisture content) on the bioaccumulation kinetics of As, Cd and Zn in the earthworm Eisenia andrei in two polluted soils (mine tailing and watercourse soil). Earthworms were exposed for up to 21 d under four climate conditions: 20 °C + 50% soil water holding capacity (WHC) (standard conditions), 20 °C + 30% WHC, 25 °C + 50% WHC and 25 °C + 30% WHC. Porewater metal/metalloid availability did not change in the mine tailing soil after the incubation period under the different climate conditions tested. However, in the watercourse soil, porewater Cd concentrations decreased from ∼63 to ∼32-41 μg L(-1) after 21 d and Zn concentrations from ∼3761 to ∼1613-2170 μg L(-1), especially at 20 °C and 50% WHC. In both soils, As and Zn showed similar bioaccumulation patterns in the earthworms, without major differences among climate conditions. Earthworm concentrations peaked after 1-3 d of exposure (in μg g(-1) dry weight: As∼32.5-108, Zn∼704-1172) and then remained constant (typical pattern of essential elements even for As). For Cd the bioaccumulation pattern changed when changing the climate conditions. Under standard conditions, earthworm Cd concentrations increased to ∼12.6-18.5 μg g(-1) dry weight without reaching equilibrium (typical pattern of non-essential elements). However when increasing temperature and/or decreasing soil moisture content the bioaccumulation pattern changed towards that more typical of essential elements due to increased Cd elimination rates (from ∼0.11 to ∼0.24-1.27 d(-1) in the mine tailing soil, from ∼0.07 to ∼0.11-0.35 d(-1) in the watercourse soil) and faster achievement of a steady state. This study shows that metal/metalloid bioaccumulation pattern in earthworms may change dependent on climate conditions.
Environmental Pollut... arrow_drop_down Environmental PollutionArticle . 2016http://dx.doi.org/10.1016/j.en...Other literature typeData sources: European Union Open Data Portaladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.envpol.2016.05.012&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu32 citations 32 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!
more_vert Environmental Pollut... arrow_drop_down Environmental PollutionArticle . 2016http://dx.doi.org/10.1016/j.en...Other literature typeData sources: European Union Open Data Portaladd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.envpol.2016.05.012&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal , Other literature type 2015 GermanyPublisher:Elsevier BV Funded by:EC | HYDROSOL-PLANTEC| HYDROSOL-PLANTAuthors: Säck, Jan-Peter;Roeb, Martin;
Roeb, Martin
Roeb, Martin in OpenAIRESattler, Christian;
Sattler, Christian
Sattler, Christian in OpenAIREPitz-Paal, Robert;
+1 AuthorsPitz-Paal, Robert
Pitz-Paal, Robert in OpenAIRESäck, Jan-Peter;Roeb, Martin;
Roeb, Martin
Roeb, Martin in OpenAIRESattler, Christian;
Sattler, Christian
Sattler, Christian in OpenAIREPitz-Paal, Robert;
Heinzel, Angelika;Pitz-Paal, Robert
Pitz-Paal, Robert in OpenAIREAbstract A simulation and control model for a two-step thermo-chemical water splitting cycle using metal oxids for the generation of hydrogen with a solar tower system as heat source has been developed. The simulation and control model consists of three main parts, the simulation of the solar flux distribution on the receiver, of the temperatures in the driven reactor modules and the produced hydrogen in the metal oxide. The results of the three parts of the simulation model have been evaluated by comparing and validating them with experimental data from the Hydrosol 100 kW th pilot plant at the Plataforma Solar de Almeria (PSA) in Spain. With the overall model of the hydrogen production plant that was created, an evaluation of the two-step thermochemical cycle process in combination with a solar tower system was performed. The model was used to perform parametric studies for the development of the plant and the operation strategies. For this purpose, a provision in the overall model was integrated. The simulation helps to reduce the frequency of using the flux measurement system and can be used for the heliostat field control, in particular for the temperature control in the solar chemical reactor modules. Because of these promising results the overall system model is being extended to enable a use as a control model with controller for the temperature control of the two core reactions in the process. The central control variable of the process control was the operating temperatures for the hydrogen production and the regeneration of the two modules. The process control with its PI controller turned out suitable to compensate diurnal changes of solar input power as well as certain statistical fluctuation due to cloud passage. At the same time the limits of the operability and controllability of the process became clear in terms of the minimum of solar power needed and maximum acceptable gradients. With this experience an operating strategy, the basic parameters of the system in operation, especially the starting up and shutdown procedures, regular operation and the response to disturbances were selected and optimized. With this operation/control strategy such a complex system can be operated in the future on a commercial scale automatically. The obtained results can also be adapted for other solar chemical processes.
DLR publication serv... arrow_drop_down http://dx.doi.org/10.1016/j.so...Other literature typeData sources: European Union Open Data PortalUniversitätsbibliographie, Universität Duisburg-EssenArticle . 2015Data sources: Universitätsbibliographie, Universität Duisburg-Essenadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eu4 citations 4 popularity Average influence Average impulse Average Powered by BIP!
more_vert DLR publication serv... arrow_drop_down http://dx.doi.org/10.1016/j.so...Other literature typeData sources: European Union Open Data PortalUniversitätsbibliographie, Universität Duisburg-EssenArticle . 2015Data sources: Universitätsbibliographie, Universität Duisburg-Essenadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2017 Australia, ItalyPublisher:Institute of Electrical and Electronics Engineers (IEEE) Funded by:EC | RODYMANEC| RODYMANAuthors:Donaire, Alejandro;
Donaire, Alejandro
Donaire, Alejandro in OpenAIRERUGGIERO, FABIO;
RUGGIERO, FABIO
RUGGIERO, FABIO in OpenAIREBUONOCORE, LUCA ROSARIO;
BUONOCORE, LUCA ROSARIO
BUONOCORE, LUCA ROSARIO in OpenAIRELIPPIELLO, VINCENZO;
+1 AuthorsLIPPIELLO, VINCENZO
LIPPIELLO, VINCENZO in OpenAIREDonaire, Alejandro;
Donaire, Alejandro
Donaire, Alejandro in OpenAIRERUGGIERO, FABIO;
RUGGIERO, FABIO
RUGGIERO, FABIO in OpenAIREBUONOCORE, LUCA ROSARIO;
BUONOCORE, LUCA ROSARIO
BUONOCORE, LUCA ROSARIO in OpenAIRELIPPIELLO, VINCENZO;
LIPPIELLO, VINCENZO
LIPPIELLO, VINCENZO in OpenAIRESICILIANO, BRUNO;
SICILIANO, BRUNO
SICILIANO, BRUNO in OpenAIREhandle: 11588/678550 , 1959.13/1354728
In this brief, we propose a passivity-based control design for a rolling-balancing system called the disk-on-disk (DoD). The stabilization of the desired equilibrium is obtained via energy shaping and damping injection. The DoD is an underactuated mechanical system composed of two disks arranged one on top of the other. The top disk, which we call the object, is free to roll without slipping on the lower disk, which we call the hand. The hand is actuated by a controlled torque, while the object is unactuated. The control objective is to balance the object at the upright position and drive the hand to a desired angle. We design an energy shaping controller without solving the partial differential equations, which rise from the matching equation. We assess the performance of the controller by both simulations and experiment results, which also verify the practical applicability of the design approach.
Archivio della ricer... arrow_drop_down IEEE Transactions on Control Systems TechnologyArticle . 2017 . Peer-reviewedLicense: IEEE CopyrightData sources: Crossrefhttp://dx.doi.org/10.1109/TCST...Article . Peer-reviewedData sources: European Union Open Data PortalQueensland University of Technology: QUT ePrintsArticle . 2017Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1109/tcst.2016.2637719&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu24 citations 24 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!
more_vert Archivio della ricer... arrow_drop_down IEEE Transactions on Control Systems TechnologyArticle . 2017 . Peer-reviewedLicense: IEEE CopyrightData sources: Crossrefhttp://dx.doi.org/10.1109/TCST...Article . Peer-reviewedData sources: European Union Open Data PortalQueensland University of Technology: QUT ePrintsArticle . 2017Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1109/tcst.2016.2637719&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu