- Fábio Bentes Freire;
Haritz Altzibar; José Teixeira Freire;Haritz Altzibar
Harvested from ORCID Public Data FileHaritz Altzibar in OpenAIRE Mikel Tellabide; +3 AuthorsMikel Tellabide
Harvested from ORCID Public Data FileMikel Tellabide in OpenAIREFábio Bentes Freire; Haritz Altzibar; José Teixeira Freire;Haritz Altzibar
Harvested from ORCID Public Data FileHaritz Altzibar in OpenAIRE Mikel Tellabide; Mikel Tellabide
Harvested from ORCID Public Data FileMikel Tellabide in OpenAIRE Juan F. Saldarriaga; Juan F. Saldarriaga
Harvested from ORCID Public Data FileJuan F. Saldarriaga in OpenAIRE Idoia Estiati; Idoia Estiati
Harvested from ORCID Public Data FileIdoia Estiati in OpenAIRE Martin Olazar; Martin Olazar
Harvested from ORCID Public Data FileMartin Olazar in OpenAIREAbstract Conventional spouted beds have been extensively used in many real-life applications but are not suited for all types of materials, especially fine particles, which require internal devices to improve their motion in the spouted bed. However, unlike conventional spouted beds, there are almost no mechanistic or empirical models available for the design of spouted beds with internals. Given the availability of an extensive but not experimentally designed database, the main purpose of this study is to present an analysis of neural networks and empirical models in terms of their suitability to fit and predict average cycle times in conical spouted beds with and without draft tubes. The parameters investigated are particle size, density, contactor angle, gas inlet diameter, static bed height, and draft tube features. Although the amount of information is always a key factor when fitting models, the size of the database used in this study strongly affects the fitting performance of empirical models, whereas artificial neural networks are more influenced by how the data are scaled. Results of model verification show that both techniques are suitable for predicting average cycle times for data outside the range covered by the database.
13 citations 13 popularity Top 10% influence Average impulse Top 10% 
Powered by BIP!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.<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.partic.2018.03.010&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Fábio Bentes Freire; Haritz Altzibar; José Teixeira Freire;
Haritz Altzibar
Harvested from ORCID Public Data FileHaritz Altzibar in OpenAIRE Mikel Tellabide; +3 AuthorsMikel Tellabide
Harvested from ORCID Public Data FileMikel Tellabide in OpenAIREFábio Bentes Freire; Haritz Altzibar; José Teixeira Freire;Haritz Altzibar
Harvested from ORCID Public Data FileHaritz Altzibar in OpenAIRE Mikel Tellabide; Mikel Tellabide
Harvested from ORCID Public Data FileMikel Tellabide in OpenAIRE Juan F. Saldarriaga; Juan F. Saldarriaga
Harvested from ORCID Public Data FileJuan F. Saldarriaga in OpenAIRE Idoia Estiati; Idoia Estiati
Harvested from ORCID Public Data FileIdoia Estiati in OpenAIRE Martin Olazar; Martin Olazar
Harvested from ORCID Public Data FileMartin Olazar in OpenAIREAbstract Conventional spouted beds have been extensively used in many real-life applications but are not suited for all types of materials, especially fine particles, which require internal devices to improve their motion in the spouted bed. However, unlike conventional spouted beds, there are almost no mechanistic or empirical models available for the design of spouted beds with internals. Given the availability of an extensive but not experimentally designed database, the main purpose of this study is to present an analysis of neural networks and empirical models in terms of their suitability to fit and predict average cycle times in conical spouted beds with and without draft tubes. The parameters investigated are particle size, density, contactor angle, gas inlet diameter, static bed height, and draft tube features. Although the amount of information is always a key factor when fitting models, the size of the database used in this study strongly affects the fitting performance of empirical models, whereas artificial neural networks are more influenced by how the data are scaled. Results of model verification show that both techniques are suitable for predicting average cycle times for data outside the range covered by the database.
13 citations 13 popularity Top 10% influence Average impulse Top 10% Powered by BIP!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.<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.partic.2018.03.010&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Katiuska Alexandrino; Katiuska Alexandrino; Rafael Bilbao; Ángela Millera; +1 Authors
Katiuska Alexandrino
Harvested from ORCID Public Data FileKatiuska Alexandrino in OpenAIRE Katiuska Alexandrino; Katiuska Alexandrino; Rafael Bilbao; Ángela Millera;Katiuska Alexandrino
Harvested from ORCID Public Data FileKatiuska Alexandrino in OpenAIRE María U. Alzueta; María U. Alzueta
Harvested from ORCID Public Data FileMaría U. Alzueta in OpenAIREAlkylated furan derivatives, such as 2,5-dimethylfuran (2,5-DMF) and 2-methylfuran (2-MF), have shown, at laboratory scale, a relatively high tendency to form soot. However, soot emissions from die...
8 citations 8 popularity Top 10% influence Average impulse Top 10% Powered by BIP!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.<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=10.1021/acs.energyfuels.9b01760&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Katiuska Alexandrino; Katiuska Alexandrino; Rafael Bilbao; Ángela Millera; +1 Authors
Katiuska Alexandrino
Harvested from ORCID Public Data FileKatiuska Alexandrino in OpenAIRE Katiuska Alexandrino; Katiuska Alexandrino; Rafael Bilbao; Ángela Millera;Katiuska Alexandrino
Harvested from ORCID Public Data FileKatiuska Alexandrino in OpenAIRE María U. Alzueta; María U. Alzueta
Harvested from ORCID Public Data FileMaría U. Alzueta in OpenAIREAlkylated furan derivatives, such as 2,5-dimethylfuran (2,5-DMF) and 2-methylfuran (2-MF), have shown, at laboratory scale, a relatively high tendency to form soot. However, soot emissions from die...
8 citations 8 popularity Top 10% influence Average impulse Top 10% Powered by BIP!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.<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=10.1021/acs.energyfuels.9b01760&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Josef Maca; Michal Dohanyos; Petr Dolejs; Jindřich Procházka;
Petr Dolejs
Harvested from ORCID Public Data FilePetr Dolejs in OpenAIREAmmonia increases buffer capacity of methanogenic medium in mesophilic anaerobic reactor thus increasing the stability of anaerobic digestion process. Optimal ammonia concentration ensures sufficient buffer capacity while not inhibiting the process. It was found out in this paper that this optimum depends on the quality of anaerobic sludge under investigation. The optimal concentrations for methanogens were 2.1, 2.6 and 3.1 g/L of ammonia nitrogen in dependence on inoculum origin. High ammonia nitrogen concentration (4.0 g/L) inhibited methane production, while low ammonia nitrogen concentration (0.5 g/L) caused low methane yield, loss of biomass (as VSS) and loss of the aceticlastic methanogenic activity. It was found out that negative effect of low ammonia nitrogen concentration on biomass is caused not only by low buffer capacity but also by insufficiency of nitrogen as nutrient. It was also found out that anaerobic sludge with higher ammonia nitrogen concentration (4.2 g/L) tolerates even concentration of volatile fatty acids (160 mmol/L) which causes inhibition of the process with low ammonia nitrogen concentration (0.2 g/L).
218 citations 218 popularity Top 1% influence Top 1% impulse Top 1% Powered by BIP!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.<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/s00253-011-3625-4&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Josef Maca; Michal Dohanyos; Petr Dolejs; Jindřich Procházka;
Petr Dolejs
Harvested from ORCID Public Data FilePetr Dolejs in OpenAIREAmmonia increases buffer capacity of methanogenic medium in mesophilic anaerobic reactor thus increasing the stability of anaerobic digestion process. Optimal ammonia concentration ensures sufficient buffer capacity while not inhibiting the process. It was found out in this paper that this optimum depends on the quality of anaerobic sludge under investigation. The optimal concentrations for methanogens were 2.1, 2.6 and 3.1 g/L of ammonia nitrogen in dependence on inoculum origin. High ammonia nitrogen concentration (4.0 g/L) inhibited methane production, while low ammonia nitrogen concentration (0.5 g/L) caused low methane yield, loss of biomass (as VSS) and loss of the aceticlastic methanogenic activity. It was found out that negative effect of low ammonia nitrogen concentration on biomass is caused not only by low buffer capacity but also by insufficiency of nitrogen as nutrient. It was also found out that anaerobic sludge with higher ammonia nitrogen concentration (4.2 g/L) tolerates even concentration of volatile fatty acids (160 mmol/L) which causes inhibition of the process with low ammonia nitrogen concentration (0.2 g/L).
218 citations 218 popularity Top 1% influence Top 1% impulse Top 1% Powered by BIP!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.<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/s00253-011-3625-4&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Luis Baringo;
Luis Baringo
Harvested from ORCID Public Data FileLuis Baringo in OpenAIRE Antonio J. Conejo; Antonio J. Conejo
Harvested from ORCID Public Data FileAntonio J. Conejo in OpenAIREGiven the significant amount of installed generation-capacity based on wind power, and also due to current economic downturn, the subsidies and incentives that have been widely used by wind-power producers to recover their investment costs have decreased and are even expected to disappear in the near future. In these conditions, wind-power producers need to develop offering strategies to make their investments profitable counting solely on the market. This paper proposes a multi-stage risk-constrained stochastic complementarity model to derive the optimal offering strategy of a wind-power producer that participates in both the day-ahead and the balancing markets. Uncertainties concerning wind-power productions, market prices, demands' bids, and rivals' offers are efficiently modeled using a set of scenarios. The conditional-value-at-risk metric is used to model the profit risk associated with the offering decisions. The proposed model is recast as a tractable mixed-integer linear programming program solvable using available branch-and-cut algorithms. Results of a case study are reported and discussed to show the effectiveness and applicability of the proposed approach.
122 citations 122 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!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.<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/tpwrs.2015.2411332&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Luis Baringo;
Luis Baringo
Harvested from ORCID Public Data FileLuis Baringo in OpenAIRE Antonio J. Conejo; Antonio J. Conejo
Harvested from ORCID Public Data FileAntonio J. Conejo in OpenAIREGiven the significant amount of installed generation-capacity based on wind power, and also due to current economic downturn, the subsidies and incentives that have been widely used by wind-power producers to recover their investment costs have decreased and are even expected to disappear in the near future. In these conditions, wind-power producers need to develop offering strategies to make their investments profitable counting solely on the market. This paper proposes a multi-stage risk-constrained stochastic complementarity model to derive the optimal offering strategy of a wind-power producer that participates in both the day-ahead and the balancing markets. Uncertainties concerning wind-power productions, market prices, demands' bids, and rivals' offers are efficiently modeled using a set of scenarios. The conditional-value-at-risk metric is used to model the profit risk associated with the offering decisions. The proposed model is recast as a tractable mixed-integer linear programming program solvable using available branch-and-cut algorithms. Results of a case study are reported and discussed to show the effectiveness and applicability of the proposed approach.
122 citations 122 popularity Top 1% influence Top 10% impulse Top 1% Powered by BIP!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.<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/tpwrs.2015.2411332&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - EC| 2D-4-CO2 ,EC| ESTEEM3Huali Wu; Lingqi Huang; Janis Timoshenko; Kun Qi; Wensen Wang; Jiefeng Liu; Yang Zhang; Shaokang Yang; Eddy Petit; Valérie Flaud; Ji Li; Chrystelle Salameh;
Philippe Miele; Philippe Miele
Derived by OpenAIRE algorithms or harvested from 3rd party repositoriesPhilippe Miele in OpenAIRE Luc Lajaunie; Luc Lajaunie
Harvested from ORCID Public Data FileLuc Lajaunie in OpenAIRE Beatriz Roldán Cuenya; Beatriz Roldán Cuenya
Harvested from ORCID Public Data FileBeatriz Roldán Cuenya in OpenAIRE Dewei Rao; Dewei Rao
Derived by OpenAIRE algorithms or harvested from 3rd party repositoriesDewei Rao in OpenAIRE Damien Voiry; Damien Voiry
Harvested from ORCID Public Data FileDamien Voiry in OpenAIRE43 citations 43 popularity Average influence Top 10% impulse Top 1% Powered by BIP!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.<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=10.1038/s41560-024-01461-6&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - EC| 2D-4-CO2 ,EC| ESTEEM3Huali Wu; Lingqi Huang; Janis Timoshenko; Kun Qi; Wensen Wang; Jiefeng Liu; Yang Zhang; Shaokang Yang; Eddy Petit; Valérie Flaud; Ji Li; Chrystelle Salameh; Philippe Miele;
Philippe Miele
Derived by OpenAIRE algorithms or harvested from 3rd party repositoriesPhilippe Miele in OpenAIRE Luc Lajaunie; Luc Lajaunie
Harvested from ORCID Public Data FileLuc Lajaunie in OpenAIRE Beatriz Roldán Cuenya; Beatriz Roldán Cuenya
Harvested from ORCID Public Data FileBeatriz Roldán Cuenya in OpenAIRE Dewei Rao; Dewei Rao
Derived by OpenAIRE algorithms or harvested from 3rd party repositoriesDewei Rao in OpenAIRE Damien Voiry; Damien Voiry
Harvested from ORCID Public Data FileDamien Voiry in OpenAIRE43 citations 43 popularity Average influence Top 10% impulse Top 1% Powered by BIP!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.<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=10.1038/s41560-024-01461-6&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - José L. Tirado;
José L. Tirado
Harvested from ORCID Public Data FileJosé L. Tirado in OpenAIRE Carlos M. Costa; Carlos M. Costa
Harvested from ORCID Public Data FileCarlos M. Costa in OpenAIRE Maria Manuela Silva; Maria Manuela Silva
Harvested from ORCID Public Data FileMaria Manuela Silva in OpenAIRE Pedro Martins; +4 AuthorsPedro Martins
Harvested from ORCID Public Data FilePedro Martins in OpenAIRE José L. Tirado; José L. Tirado
Harvested from ORCID Public Data FileJosé L. Tirado in OpenAIRE Carlos M. Costa; Carlos M. Costa
Harvested from ORCID Public Data FileCarlos M. Costa in OpenAIRE Maria Manuela Silva; Maria Manuela Silva
Harvested from ORCID Public Data FileMaria Manuela Silva in OpenAIRE Pedro Martins; Pedro Martins
Harvested from ORCID Public Data FilePedro Martins in OpenAIRE Senentxu Lanceros-Méndez; Senentxu Lanceros-Méndez
Harvested from ORCID Public Data FileSenentxu Lanceros-Méndez in OpenAIRE Stanislav Ferdov; Attila Gören; Daniel Cíntora-Juárez;Stanislav Ferdov
Harvested from ORCID Public Data FileStanislav Ferdov in OpenAIREAbstractIn this work, the drying step for cathodes based on carbon‐coated LiFePO4 prepared in the temperature range of 60–120 °C has been investigated in detail. The microstructure of the cathode shows a homogeneous distribution of the active material and conductive additive particles independent of the drying temperature. However, the results of impedance spectroscopy and cycling voltammetry are affected by the drying temperature. The solvent evaporation temperature, therefore, affects the polymer binder distribution and its characteristics, which include the polar phase content of the polymer and its affinity with the other components of the cathode. The discharge capacity value after 50 cycles is 120 and 81 mAh g−1 for the samples dried at 80 and 60 °C, respectively, which show the best and worst battery performance, respectively. It was concluded that carbon‐coated LiFePO4 cathodes should be prepared at drying temperatures between 80 and 100 °C for optimized performance.
39 citations 39 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!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.<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=10.1002/ente.201500392&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - José L. Tirado;
José L. Tirado
Harvested from ORCID Public Data FileJosé L. Tirado in OpenAIRE Carlos M. Costa; Carlos M. Costa
Harvested from ORCID Public Data FileCarlos M. Costa in OpenAIRE Maria Manuela Silva; Maria Manuela Silva
Harvested from ORCID Public Data FileMaria Manuela Silva in OpenAIRE Pedro Martins; +4 AuthorsPedro Martins
Harvested from ORCID Public Data FilePedro Martins in OpenAIRE José L. Tirado; José L. Tirado
Harvested from ORCID Public Data FileJosé L. Tirado in OpenAIRE Carlos M. Costa; Carlos M. Costa
Harvested from ORCID Public Data FileCarlos M. Costa in OpenAIRE Maria Manuela Silva; Maria Manuela Silva
Harvested from ORCID Public Data FileMaria Manuela Silva in OpenAIRE Pedro Martins; Pedro Martins
Harvested from ORCID Public Data FilePedro Martins in OpenAIRE Senentxu Lanceros-Méndez; Senentxu Lanceros-Méndez
Harvested from ORCID Public Data FileSenentxu Lanceros-Méndez in OpenAIRE Stanislav Ferdov; Attila Gören; Daniel Cíntora-Juárez;Stanislav Ferdov
Harvested from ORCID Public Data FileStanislav Ferdov in OpenAIREAbstractIn this work, the drying step for cathodes based on carbon‐coated LiFePO4 prepared in the temperature range of 60–120 °C has been investigated in detail. The microstructure of the cathode shows a homogeneous distribution of the active material and conductive additive particles independent of the drying temperature. However, the results of impedance spectroscopy and cycling voltammetry are affected by the drying temperature. The solvent evaporation temperature, therefore, affects the polymer binder distribution and its characteristics, which include the polar phase content of the polymer and its affinity with the other components of the cathode. The discharge capacity value after 50 cycles is 120 and 81 mAh g−1 for the samples dried at 80 and 60 °C, respectively, which show the best and worst battery performance, respectively. It was concluded that carbon‐coated LiFePO4 cathodes should be prepared at drying temperatures between 80 and 100 °C for optimized performance.
39 citations 39 popularity Top 10% influence Top 10% impulse Top 10% Powered by BIP!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.<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=10.1002/ente.201500392&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Antonio González; Isabel L. Bazzocchi; Angel G. Ravelo; Mireya Correa; Mahabir P. Gupta; Laila Moujir;
Mahabir P. Gupta
Harvested from ORCID Public Data FileMahabir P. Gupta in OpenAIREThirty four crude extracts of Panamanian plants, from nine species of Celastraceae and Lamiaceae, were assayed for xanthine oxidase (XO) inhibitory activity. The enzymatic activity was estimated by measuring the increase in absorbance at 290 nm due to uric acid formation. Eighty five percent of the crude extracts were found to possess XO inhibitory activity at 50 micrograms/ml and all the extracts of the species from Lamiaceae were active even at 1 micrograms/ml. The ethanol extracts of Hyptis obtusiflora Presl ex Benth. (Lamiaceae) and H. lantanaefolia Poit. (Lamiaceae) exhibited the highest activity with an inhibition of approximately 40% at 1 micrograms/ml.
32 citations 32 popularity Top 10% influence Top 10% impulse Average Powered by BIP!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.<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=10.1016/0378-8741(95)01225-3&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Antonio González; Isabel L. Bazzocchi; Angel G. Ravelo; Mireya Correa; Mahabir P. Gupta; Laila Moujir;
Mahabir P. Gupta
Harvested from ORCID Public Data FileMahabir P. Gupta in OpenAIREThirty four crude extracts of Panamanian plants, from nine species of Celastraceae and Lamiaceae, were assayed for xanthine oxidase (XO) inhibitory activity. The enzymatic activity was estimated by measuring the increase in absorbance at 290 nm due to uric acid formation. Eighty five percent of the crude extracts were found to possess XO inhibitory activity at 50 micrograms/ml and all the extracts of the species from Lamiaceae were active even at 1 micrograms/ml. The ethanol extracts of Hyptis obtusiflora Presl ex Benth. (Lamiaceae) and H. lantanaefolia Poit. (Lamiaceae) exhibited the highest activity with an inhibition of approximately 40% at 1 micrograms/ml.
32 citations 32 popularity Top 10% influence Top 10% impulse Average Powered by BIP!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.<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=10.1016/0378-8741(95)01225-3&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!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.<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.energy.2013.09.032&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!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.<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.energy.2013.09.032&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu- De la Rubia Romero, M.A.;
De la Rubia Romero, M.A.
Harvested from ORCID Public Data FileDe la Rubia Romero, M.A. in OpenAIRE Perez, M.; Romero, L.I.; Romero, L.I.
Harvested from ORCID Public Data FileRomero, L.I. in OpenAIRE Sales, D.; This paper describes anaerobic thermophilic sludge digestion (55 °C) in a continuously stirred tank reactor (CSTR) on a pilot-plant scale (150 L). The experimental protocol was defined to examine the effect of the increase in the organic loading rate on the efficiency of the digester and to report on its steady-state performance. The reactor was subjected to a programme of steady-state operation over a range of solids retention times (SRTs) of 75, 40, 27, 20 and 15 days and organic loading rates (OLR) in the range 0.4–2.2 kg VS/(m3 day). The digester was fed with raw sludge (containing approximately 35 kg/m3 volatile solids (VS)) once daily during the 75-day SRT period, twice daily during the 40-day SRT period and three times a day during the 27-, 20- and 15-day SRT periods. The reactor was initially operated with an organic loading rate of 0.4 kg VS/(m3 day) and an SRT of 75 days. The volatile solids removal efficiency in the reactor was found to be 73%, while the volumetric methane production rate produced in the digester reached 0.02 m3/(m3 day). Over a 338-day operating period, an OLR of 2.2 kg VS/(m3 day) was achieved with 49.1% VS removal efficiency in the pilot sludge digester, at which time the volumetric methane production rate content of biogas produced in the digester reached 0.4 m3/(m3 day). The chemical oxygen demand (COD) mass balance obtained indicated that COD used for methane generation increased when the SRT was decreased or when the influent organic loading rate was increased. This implies that the amount of COD used in the anabolism route decreased with SRT due the microbial population becoming adapted to new operational conditions and more COD being used to generate methane.
114 citations 114 popularity Top 10% influence Top 1% impulse Top 10% Powered by BIP!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.<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.procbio.2005.03.073&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - De la Rubia Romero, M.A.;
De la Rubia Romero, M.A.
Harvested from ORCID Public Data FileDe la Rubia Romero, M.A. in OpenAIRE Perez, M.; Romero, L.I.; Romero, L.I.
Harvested from ORCID Public Data FileRomero, L.I. in OpenAIRE Sales, D.; This paper describes anaerobic thermophilic sludge digestion (55 °C) in a continuously stirred tank reactor (CSTR) on a pilot-plant scale (150 L). The experimental protocol was defined to examine the effect of the increase in the organic loading rate on the efficiency of the digester and to report on its steady-state performance. The reactor was subjected to a programme of steady-state operation over a range of solids retention times (SRTs) of 75, 40, 27, 20 and 15 days and organic loading rates (OLR) in the range 0.4–2.2 kg VS/(m3 day). The digester was fed with raw sludge (containing approximately 35 kg/m3 volatile solids (VS)) once daily during the 75-day SRT period, twice daily during the 40-day SRT period and three times a day during the 27-, 20- and 15-day SRT periods. The reactor was initially operated with an organic loading rate of 0.4 kg VS/(m3 day) and an SRT of 75 days. The volatile solids removal efficiency in the reactor was found to be 73%, while the volumetric methane production rate produced in the digester reached 0.02 m3/(m3 day). Over a 338-day operating period, an OLR of 2.2 kg VS/(m3 day) was achieved with 49.1% VS removal efficiency in the pilot sludge digester, at which time the volumetric methane production rate content of biogas produced in the digester reached 0.4 m3/(m3 day). The chemical oxygen demand (COD) mass balance obtained indicated that COD used for methane generation increased when the SRT was decreased or when the influent organic loading rate was increased. This implies that the amount of COD used in the anabolism route decreased with SRT due the microbial population becoming adapted to new operational conditions and more COD being used to generate methane.
114 citations 114 popularity Top 10% influence Top 1% impulse Top 10% Powered by BIP!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.<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.procbio.2005.03.073&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Sarabia Escrivà, Emilio José;
Sarabia Escrivà, Emilio José
Harvested from ORCID Public Data FileSarabia Escrivà, Emilio José in OpenAIRE Soto Francés, Víctor Manuel; Soto Francés, Víctor Manuel
Harvested from ORCID Public Data FileSoto Francés, Víctor Manuel in OpenAIRE Pinazo Ojer, José Manuel; Acha, Salvador;Pinazo Ojer, José Manuel
Harvested from ORCID Public Data FilePinazo Ojer, José Manuel in OpenAIRE[EN] The objective of this article is to compare the behaviour of the most representative domestic hot water systems (DHW) in single-family buildings. The study evaluates the energy consumption, equivalent CO2 emissions and cost for each system over a 15-year life period. This analysis is carried out in four cli- matic zones across Europe to observe the influence of climatic conditions on the results. The four climatic zones are located in the cities of Athens, Madrid, London and Berlin. The analysed systems are: a) natural gas-fired instantaneous water heaters, b) electric storage water heater, c) solar thermal system with gas- fired instantaneous, d) solar thermal system with electric storage water heater, e) air-source heat pump, f) photovoltaic system with electric storage water heater, and g) photovoltaic system with air-source heat pump. This range of technologies covers the most likely solutions to be implemented across domestic buildings in Europe.The heat pump system (HPWH) with PV considering self-consumption shows the lowest environmen- tal impact in all zones, but is not an attractive investment in the coldest zones due to lower natural gas prices. Thermal solar systems have a high purchase and maintenance costs which do not compensate their energy savings. The PV HPWH system has a greater reduction of emissions and a lower cost than HPWH across a 15-year life. The gas boiler system has the lowest cost in a 15-year period in the coldest areas, despite having a greater environmental impact than the heat pump.(c) 2023 Elsevier B.V. All rights reserved.
Access RoutesGreen 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.<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.enbuild.2023.112925&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu - Sarabia Escrivà, Emilio José;
Sarabia Escrivà, Emilio José
Harvested from ORCID Public Data FileSarabia Escrivà, Emilio José in OpenAIRE Soto Francés, Víctor Manuel; Soto Francés, Víctor Manuel
Harvested from ORCID Public Data FileSoto Francés, Víctor Manuel in OpenAIRE Pinazo Ojer, José Manuel; Acha, Salvador;Pinazo Ojer, José Manuel
Harvested from ORCID Public Data FilePinazo Ojer, José Manuel in OpenAIRE[EN] The objective of this article is to compare the behaviour of the most representative domestic hot water systems (DHW) in single-family buildings. The study evaluates the energy consumption, equivalent CO2 emissions and cost for each system over a 15-year life period. This analysis is carried out in four cli- matic zones across Europe to observe the influence of climatic conditions on the results. The four climatic zones are located in the cities of Athens, Madrid, London and Berlin. The analysed systems are: a) natural gas-fired instantaneous water heaters, b) electric storage water heater, c) solar thermal system with gas- fired instantaneous, d) solar thermal system with electric storage water heater, e) air-source heat pump, f) photovoltaic system with electric storage water heater, and g) photovoltaic system with air-source heat pump. This range of technologies covers the most likely solutions to be implemented across domestic buildings in Europe.The heat pump system (HPWH) with PV considering self-consumption shows the lowest environmen- tal impact in all zones, but is not an attractive investment in the coldest zones due to lower natural gas prices. Thermal solar systems have a high purchase and maintenance costs which do not compensate their energy savings. The PV HPWH system has a greater reduction of emissions and a lower cost than HPWH across a 15-year life. The gas boiler system has the lowest cost in a 15-year period in the coldest areas, despite having a greater environmental impact than the heat pump.(c) 2023 Elsevier B.V. All rights reserved.
Access RoutesGreen 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.<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.enbuild.2023.112925&type=result"></script>'); --> </script>For further information contact us at helpdesk@openaire.eu
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