Resultados totales (Incluyendo duplicados): 35622
Encontrada(s) 3563 página(s)
Encontrada(s) 3563 página(s)
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371303
Dataset. 2024
FROM THE MAGHRIB TO THE MASHRIQ: A BIBLIOGRAPHY
- Fierro Bello, María Isabel
- Penelas, Mayte
- Ropero, Víctor
- Bellver, José
Datos de investigación: Bibliografía del proyecto "Al-Andalus and the Maghrib in the Islamic East: mobility, migration and memory", AMOI II (ref. PID2020-116680GB-I00), financiado por MICIN/AEI/10.13039/501100011033 y dirigido por Mayte Penelas y Maribel Fierro., Peer reviewed
DOI: http://hdl.handle.net/10261/371303
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371303
HANDLE: http://hdl.handle.net/10261/371303
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371303
PMID: http://hdl.handle.net/10261/371303
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371303
Ver en: http://hdl.handle.net/10261/371303
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371303
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371208
Dataset. 2024
SERS ACTIVITY OF SILVER-BASED CALCIUM SILICATE HYDRATE UPON LASER IRRADIATION
- Maestro-Guijarro, Laura
- Martínez-Ramírez, S.
- Sánchez-Cortés, Santiago
- Marco, J.F.
- de la Figuera, Juan
- Castillejo, Marta
- Oujja, Mohamed
- Carmona-Quiroga, Paula
C-S-H and C-S-Ag-H gel solutions were analysed by UV/Vis/NIR spectroscopy with a Shimadzu 3600 UV/Vis/NIR spectrometer equipped with 2H and Wlamps, a photomultiplier (UV/Vis), and a InGaAs and a PbS (NIR) detectors. The baseline reference sample was prepared with 1000 µL of MilliQ water. The samples were diluted 1:19 (50 μL of gel solution to 950 μL of of MilliQ water) and the measurements were recorded in the range of 190–850 nm, with slow scan speed. The sampling interval and the slit width were 0.5 nm and 1 nm, respectively. For the 29Si NMR analysis of dried C-S-H and C-S-Ag-H, a Bruker AV-400 (9.4 T and νR of 4 kHz) (Bruker, Germany) NMR spectrometer was used in the following conditions: pulse width of 7 μs and relaxation delay of 60 s with typically 3000 scans. The 29Si chemical shifts were determined relative to tetramethylsilane. The spectra were treated for band deconvolution into Gaussian peaks and fitted using Origin 2022 software.
The micro-Raman spectra were carried out on pressed pellets of the samples with a Raman microscope Renishaw RM1000 (Renishaw, Wotton-under-Endge, UK) equipped with a Leica microscope and an electrically refrigerated CCD camera. Laser excitation line was provided by a He:Ne (633 nm wavelength, 25 mW output power with approximately 2 mW at the sample). The spectra were obtained using a 50× magnification objective, a spectral resolution of 4 cm−1, a 10 s exposure time, 5 accumulations, and 2mW laser power per spectra in the range of 2000–100 cm−1 in order to increase signal/noise ratio. The frequencies were calibrated with silicon at 520 cm−1.
X-ray photoelectron (XP) and SERS spectra were taken on pressed C-S-Ag-H pellets before and after irradiation at 355 nm, and 532 nm (and of the reference C-S-H pellet).
For the former technique, the analysis was performed under a base pressure lower than 7.5 · 10−9 Torr using a PHOIBOS-150 (Specs) electron analyzer, Mg Kα radiation and a constant pass energy of 100 eV and 20 eV for the wide and narrow scans, respectively. The pellets were fixed to the sample holder using double-sided conductive carbon tape to ensure a good conductivity and the X-ray gun was used at 100 W power in order to avoid any possible sample degradation induced by the X-ray irradiation. The binding energy scale was referenced to the main C 1s signal of the adventitious carbon contamination layer which was set at 284.8 eV. All the spectra were fitted using pseudo-Voigt lines (30 % Gaussian/70 % Lorentzian) and a Shirley-type background.
For the SERS analysis, the same experimental conditions were used as for obtaining the Raman spectra using Rhodamine B as a probe molecule (an aliquot of 2 µl of a 5 × 10−6 M aqueous solution was dropped on the irradiated and on the non-irradiated silver-containing pellets). Additionally, different reference RhB spectra were acquired on hydroxylamine-reduced silver nanoparticles (NPs), 2 µl dropped on top of both C-S-H and C-S-Ag-H pellets for the comparison of the SERS activities.
More details about samples preparation and irradiation conditions are available in Materials folder., Data life: 2024- (unlimited validity), his is the experimental dataset used in the paper Applied Surface Science, 662: 160107 (2024) (https://doi.org/10.1016/j.apsusc.2024.160107) in which a novel Surface-Enhanced Raman Spectroscopy (SERS) sensor based on a nanostructured substrate, calcium silicate hydrate (C-S-H), the main hydration product of Portland cement, was synthetized. The procedure involves first the incorporation of silver within the nanostructure of the gel (C-S-Ag-H) and second the modification of the surface of pellets of the newly synthesized material by laser irradiation at 532 nm or 355 nm.
This data set includes the results of the effect of silver on the gel structure via visible UV spectroscopy, micro-Raman and
29Si Magic Angle Spinning Nuclear Magnetic Resonance (MAS NMR).
It also includes the characterization analyses of the C-S-Ag-H pellets by X-ray Photoelectron Spectroscopy (XPS) to determine the silver oxidation state and the assessment of their SERS activity before and after laser irradiation using for the latter Rhodamine B (RhB) as a probe., We acknowledge financial support from the Spanish State Research Agency (AEI) through projects PID2019-104124RB-I00/AEI/10.13039/501100011033; PID2020-113900RB-I00/AEI/10.13039/ 501100011033; and PID2022-137017OB-I00/AEI/10.13039/501100011033; from European Union’s Horizon 2020 through IPERION HS (Integrated Platform for the European Research Infrastructure ON Heritage Science, GA 871034) project; and from the Community of Madrid through Maestro-Guijarro’s Youth Guarantee contract (CAM20_IQFR_AI_06)., Materials folder: “Sample_synthesis”; “Laser_irradiation_conditions”
NMR folder: "NMR_readme"; "NMR_C-S-H"; "NMR_C-S-Ag-H"
Raman folder: “Raman_readme"; "Raman_C-S-H"; "Raman_C-S-Ag-H"; "Raman_C-S-H_RhB"; "Raman_C-S-Ag-H_RhB"
SERS folder: "SERS_readme"; "SERS_RhB_C-S-Ag-H_355"; "SERS_RhB_C-S-Ag-H_355_NPs"; "SERS_RhB_C-S-Ag-H_532"; "SERS_RhB_C-S-Ag-H_532_NPs"; "SERS_RhB_C-S-Ag-H_NPs"; "SERS_RhB_C-S-H_NPs"
XPS folder: "XPS_readme"; "XPS_AgAuger_C-S-Ag-H_532"; "XPS_AgAuger_C-S-Ag-H_355"; "XPS_Ag3d_C-S-Ag-H_532"; "XPS_Ag3d_C-S-Ag-H_355"; "XPS_Ag3d_C-S-Ag-H"; "XPS_Ag3d_C-S-H"; "XPS_Ca2p_C-S-Ag-H_532"; "XPS_C1s_C-S-Ag-H_532"; "XPS_wide_C-S-Ag-H_532"; "XPS_wide_C-S-Ag-H_355"; "XPS_wide_C-S-Ag-H"; "XPS_wide_C-S-H"
UV-Vis folder: "UV-VIS_readme"; "UV-VIS_C-S-H"; "UV-VIS_C-S-Ag-H", Peer reviewed
DOI: http://hdl.handle.net/10261/371208, https://doi.org/10.20350/digitalCSIC/16639
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371208
HANDLE: http://hdl.handle.net/10261/371208, https://doi.org/10.20350/digitalCSIC/16639
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371208
PMID: http://hdl.handle.net/10261/371208, https://doi.org/10.20350/digitalCSIC/16639
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371208
Ver en: http://hdl.handle.net/10261/371208, https://doi.org/10.20350/digitalCSIC/16639
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371208
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371397
Dataset. 2024
RESEARCH DATA SUPPORTING THE ARTICLE TITLED "AN OVERVIEW ON PLASMON-ENHANCED PHOTOLUMINESCENCE VIA METALLIC NANOANTENNAS"
- José Luis Montaño-Priede
- Mario Zapata-Herrera
- Ruben Esteban
- Nerea Zabala
- Javier Aizpurua
The dataset contains the data used to generate the figures in the article titled "An Overview on Plasmon-enhanced Photoluminescence via Metallic Nanoantennas", written by José Luis Montaño-Priede, Mario Zapata-Herrera, Ruben Esteban, Nerea Zabala, and Javier Aizpurua. The dataset is organized into folders according to the explanation contained in the README file., MICIU/AEI/10.13039/501100011033 and ERDF/EU, through Project Ref. No. PID2022-139579NB-I00
Department of Education, Research and Universities of the Basque Government through Project Ref. No. IT1526-22.
European Union’s Horizon 2020 research and innovation programme, through project POSEIDON under grant agreement No 861950;, Peer reviewed
Proyecto: //
DOI: http://hdl.handle.net/10261/371397
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371397
HANDLE: http://hdl.handle.net/10261/371397
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371397
PMID: http://hdl.handle.net/10261/371397
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371397
Ver en: http://hdl.handle.net/10261/371397
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371397
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371527
Dataset. 2024
DATA OF MANUSCRIPT ANTIOXIDANT PEPTIDES GENERATED FROM CHICKEN FEET PROTEIN HYDROLYSATES
- Ozturk-Kerimoglu, Burcu
- Heres, Alejandro
- Mora, Leticia
- Toldrá Vilardell, Fidel
Excel file including: - the degree of hydrolysis, antioxidant activity evaluated by DPPH, FRAP and ABTS assays, peptide separation by reverse phase chromatography (RP-HPLC), peptide identification by mass spectrometry in tandem, peptides antioxidant activity and IC50 calculation., As major industrial poultry by-products, chicken feet are considered as notable sources of several bioactive molecules. The current work covers the processing of chicken feet proteins as substrates to be hydrolysed by combinations of three commercial enzymes (Alcalase®, Flavourzyme® and Protana® Prime) during different hydrolysis periods and the evaluation of the identified peptides having antioxidant activity after simulated gastrointestinal digestion., Grant PID2020-119684RB-I00 funded by MCIN/AEI/10.13039/501100011033 is acknowledged. Dr. Ozturk-Kerimoglu gratefully acknowledges the financial support of the Scientific and Technological Research Council of Türkiye (TÜBİTAK) Science Fellowships and Grant Programs Directorate within the Post-Doctoral Fellowship 2219 Program., Peer reviewed
DOI: http://hdl.handle.net/10261/371527
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371527
HANDLE: http://hdl.handle.net/10261/371527
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371527
PMID: http://hdl.handle.net/10261/371527
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371527
Ver en: http://hdl.handle.net/10261/371527
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371527
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371528
Dataset. 2024
DATA OF MANUSCRIPT POTENTIAL OF DRY-CURED HAM BONES AS A SUSTAINABLE SOURCE TO OBTAIN ANTIOXIDANT AND DPP-IV INHIBITORY EXTRACTS
- Carrera Alvarado, Gisela
- Toldrá Vilardell, Fidel
- Mora, Leticia
Excel file including: Degree of hydrolysis, antioxidant activity evaluated by DPPH, FRAP and ABTS assays, inhibition of DPP-IV of 3 enzymatic hydrolysates of Spanish dry-cured ham bone, peptide separation by reverse phase chromatography (RP-HPLC) and hydrophilic interaction liquid chromatography (HILIC); peptide identification by mass spectrometry in tandem and free amino acid content of each hydrolysate, The utilization of animal bones as a protein source could be used as a sustainable pathway for the production of bioactive compounds. In this study, bones were pretreated with pepsin enzyme (PEP) and then sequentially hydrolyzed with Alcalase (PA) and Alcalase, as well as Protana prime (PAPP). The degree of hydrolysis, antioxidant activity, and DPP-IV inhibitory activity were measured. All three hydrolysates showed antioxidant and DPP-IV inhibitory activity; however, the highest result in both bioactivities was obtained with the PAPP hydrolysate. The obtained free amino acid content was 54.62, 88.12, and 668.46 mg/100 mL of hydrolyzed in PEP, PA, and PAPP, respectively. Pepsin pretreatment did not significantly affect the degree of hydrolysis; however, it is suggested that it promoted the cleavage of certain bonds for subsequent protease action. Accordingly, a total of 550 peptides were identified in PEP hydrolysate, 1087 in PA hydrolysate, and 1124 in PAPP hydrolysate using an LC-MS/MS approach. Pepsin pretreatment could be an effective method in the utilization of bone sources for the production of antioxidant and hypoglycemic peptides., Grant PID2020-119684RB-I00 funded by MCIN/ AEI /10.13039/501100011033 is acknowledged. Grant GRISOLIAP/2020/021 de la Consellería de Innovació, Universitats, Ciència i Societat Digital de la Generalitat Valenciana (G.C.-A.) is also acknowledged. Grant CEX2021-001189-S funded by MCIN/ AEI /10.13039/501100011033 is acknowledged, With funding from the Spanish government through the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2021-001189-S), Peer reviewed
DOI: http://hdl.handle.net/10261/371528
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371528
HANDLE: http://hdl.handle.net/10261/371528
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371528
PMID: http://hdl.handle.net/10261/371528
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371528
Ver en: http://hdl.handle.net/10261/371528
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371528
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371659
Dataset. 2024
DATA OF MANUSCRIPT PORK ORGANS AS A POTENTIAL SOURCE OF FLAVOUR-RELATED SUBSTANCES
- López-Martínez, Manuel Ignacio
- Toldrá Vilardell, Fidel
- Mora, Leticia
Excel file including: Proximate composition and physicochemical parameters of porcine organs, antioxidant activity of pork organs (ABTS, DPPH and FRAP), total nucleotides (mg nucleotide/100g organ), free amino acids (mg amino acid/g organ), and total amino acids (mg amino acid/g organ)., The increase in world population has generated a higher demand for quality proteins, increasing the production in meat industry but also the generation of thousands of tons of by-products, with a negative economic and environmental impact. The valorisation of slaughterhouse by-products by giving by-products a new use as food ingredient is one of the best strategies to add value while reducing environmental damage. Flavour is one of the most influential parameters in the purchasing decision of consumers, and in meat products it is mostly influenced by the content in free amino acids and nucleotides. In this study, the potential of 4 pork organs (liver, kidney, lung, and brain) as a source of flavour-related substances was investigated. Liver proved to be the organ showing the highest content of free and total amino acids related to taste, while kidney was the organ with the highest content of umami nucleotides. The results of the Taste Activity Value indicated that umami, sweet, and bittersweet amino acids are main responsible for the taste of the organs. On the other hand, the synergy between amino acids and nucleotides in relation with umami taste was determined, showing liver and kidney the best values in Equivalent Umami Content. In addition, the antioxidant activity of the organs was determined, and liver and kidney showed the highest antioxidant activity in all assays (p < 0.05). In conclusion, pork organs, especially liver and kidney, may be good candidates to be used as raw materials to produce functional flavouring ingredients., This work was supported by the Project PID2020-119684RB-I00 and grant PRE2021-100576 to MILM funded by MCIN/ AEI /10.13039/501100011033 and European Social Fund are acknowledged. The Accreditation as Center of Excellence Severo Ochoa CEX2021-001189-S funded by MCIN/AEI / 10.13039/501100011033 is also fully acknowledged, With funding from the Spanish government through the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2021-001189-S), Peer reviewed
DOI: http://hdl.handle.net/10261/371659, https://doi.org/10.20350/digitalCSIC/16657
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371659
HANDLE: http://hdl.handle.net/10261/371659, https://doi.org/10.20350/digitalCSIC/16657
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371659
PMID: http://hdl.handle.net/10261/371659, https://doi.org/10.20350/digitalCSIC/16657
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371659
Ver en: http://hdl.handle.net/10261/371659, https://doi.org/10.20350/digitalCSIC/16657
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371659
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371654
Dataset. 2024
SUPPLEMENTARY MATERIAL FOR THERMOCHEMICAL RECYCLING OF POLYSTYRENE WASTE BY PYROLYSIS USING A PILOT-SCALE AUGER REACTOR: PROCESS DEMONSTRATION IN A RELEVANT ENVIRONMENT [DATASET]
- Royuela García, David
- Veses Roda, Alberto
- Martínez Ángel, Juan Daniel
- Callén Romero, M. Soledad
- López Sebastián, José Manuel
- García Martínez, Tomás
- Murillo Villuendas, Ramón
5 figures, 1 table.-- Under a Creative Commons License BY NC ND 4.0, https://creativecommons.org/licenses/by-nc-nd/4.0/., Fig. S1. Temperature profile along the reactor at 500 ºC. Left: at 6 kg/h; right: at 9 kg/h. Fig. S2. TG and DTG curves of PS. Fig. S3. Some images of the operational issues related to feed screw blockages and polystyrene blocks formation. Fig. S4. Volatile residence time variation as a function of PS feeding rate. Fig. S5. Spectrum analysis GC. Table S1. GC/MS analysis. Volatiles residence time estimation: To calculate the residence time of volatiles released during the pyrolysis of PS (polystyrene), various parameters need to be considered. These include the volume available for the feedstock in the auger, which depends on the auger diameter and the design of the auger pitch, as well as different process parameters such as the feed rate and the density of volatiles., Peer reviewed
Proyecto: //
DOI: http://hdl.handle.net/10261/371654
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371654
HANDLE: http://hdl.handle.net/10261/371654
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371654
PMID: http://hdl.handle.net/10261/371654
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371654
Ver en: http://hdl.handle.net/10261/371654
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/371654
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/372199
Dataset. 2024
KHANAFIS. BASE DE DATOS DE SCARABAEOIDEA COPRÓFAGOS DEL NORTE DE ÁFRICA
- Lobo, Jorge M.
- Romero Samper, J.
[Description of methods used for collection/generation of data] Recopilación de datos procedentes de la literatura y de colecciones privadas o públicas relativos a los coleópteros Scarabaeoidea pertenecientes a las familias Scarabaeidae (Scarabaeinae y Aphodiinae) 7 Geotrupidae
[Methods for processing the data] trabajo realizado gracias a una ayuda del Instituto de Estudios Ceutíes (https://www.ieceuties.org/)durante los años 2009-2010., This database compiles information from 93 bibliographic references and various unpublished materials on the distribution of species belonging to the families Scarabaeidae (Scarabaeinae and Aphodiinae) and Geotrupidae in Morocco and the Spanish enclaves of Ceuta and Melilla. It also includes a few records from other regions in North Africa. The records have been georeferenced in decimal degrees with an approximate accuracy of 1 km, and the taxonomic nomenclature of the species has been standardised based on Volume 3 of the Catalogue of Palaearctic Coleoptera (Löbl and Löbl, 2016)., Proyecto “: Creación de una base de datos sobre los Scarabaeoidea coprófagos de Marruecos, Instituto de Estudios Ceutíes (https://www.ieceuties.org/), 2009-2010., Peer reviewed
Proyecto: //
DOI: http://hdl.handle.net/10261/372199, https://doi.org/10.20350/digitalCSIC/16674
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/372199
HANDLE: http://hdl.handle.net/10261/372199, https://doi.org/10.20350/digitalCSIC/16674
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/372199
PMID: http://hdl.handle.net/10261/372199, https://doi.org/10.20350/digitalCSIC/16674
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/372199
Ver en: http://hdl.handle.net/10261/372199, https://doi.org/10.20350/digitalCSIC/16674
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/372199
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/373985
Dataset. 2024
DATASET: FEED EFFICIENCY AND RESILIENCE IN DAIRY EWES SUBJECTED TO A NUTRITIONAL CHALLENGE
- Barrio, Esther
- Frutos, Pilar
- Friggens, Nicolas C.
- Toral, Pablo G.
- Hervás, Gonzalo
This work forms part of the PID2020-113441RB-I00 project, funded by the Spanish Research State Agency (MCIN/AEI/10.13039/501100011033). E. Barrio benefited from a FPI predoctoral contract (PRE2021-098235) funded by the Spanish Research State Agency (MCIN/AEI/10.13039/501100011033) and by the European Social Fund (“ESF Investing in your future”).
The authors have not stated any conflicts of interest., Peer reviewed
DOI: http://hdl.handle.net/10261/373985, https://doi.org/10.20350/digitalCSIC/16709
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/373985
HANDLE: http://hdl.handle.net/10261/373985, https://doi.org/10.20350/digitalCSIC/16709
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/373985
PMID: http://hdl.handle.net/10261/373985, https://doi.org/10.20350/digitalCSIC/16709
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/373985
Ver en: http://hdl.handle.net/10261/373985, https://doi.org/10.20350/digitalCSIC/16709
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/373985
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/374195
Dataset. 2024
NUMERICAL MODELS FOR THE SIMULATION OF BLEED-OFF CONTROL ON POST-INJECTION SEISMICITY IN ENHANCED GEOTHERMAL SYSTEMS
- Kivi, Iman Rahimzadeh
- Vilarrasa, Víctor
[Description of methods used for collection/generation of data] The models are 2D plane strain including a homogeneous and isotropic granitic reservoir rock intersected by an interconnected fracture network and a distant fault to the wellbore. Generic hydromechanical properties are assumed for the reservoir rock and the intersecting fractures and fault. The fault in the models is either hydraulically isolated from the fracture network, i.e., our "basecase" scenario, or intersected by them, a scenario referred to as "connected".
Post-injection protocols to control seismicity include well shut-in or bleed-off. During bleed-off, the wellhead is opened to impose hydrostatic pressure conditions along the well over a period of either 24 h or 1 h. The hydrostatic pressure profile is maintained afterwards. Different injection periods are considered to inspect the effect of this parameter on the effectiveness of bleed-off in controlling post-injection seismicity. , [Methods for processing the data] The Code_Bright executables "Cb_v9_3.exe" or "Cb_v9_1_3par4", i.e., the parallel version of the code running on 4 CPU cores, can be used to run the numerical models. Upon running the executables, the code generates several outputs, including "root.post.msh" and "root.post.res". These two outputs include the mesh structure and the simulation results, respectively. Any postprocessing software supporting the output file formats can be used to visualize the data., The Global physics-based database of injection-induced seismicity is licensed under Creative Commons CC BY 4.0 International License. Users are free to copy and redistribute the database material in any medium or format, and remix, transform, and build upon the material for any purpose, even commercially., This dataset comprises the input files for numerical simulation of stimulating an enhanced geothermal system and the associated risk of induced seismicity. Numerical models explore the hydromechanical mechanisms of post-injection induced seismicity and the potential impact of bleed-off to control seismicity. The models are 2D plane strain including a homogeneous and isotropic granitic reservoir rock intersected by an interconnected fracture network and a distant fault to the wellbore. The fault in our numerical models is either hydraulically isolated from the fracture network, i.e., our “basecase” scenario, or intersected by them, a scenario referred to as “connected”. Post-injection protocols to control seismicity include well shut-in or bleed-off. During bleed-off, the wellhead is opened to impose hydrostatic pressure conditions along the well over a period of either 24 h or 1 h. The hydrostatic pressure profile is maintained afterwards. Different injection periods are considered to inspect the effect of this parameter on the effectiveness of bleed-off in controlling post-injection seismicity. Following this brief explanation, the dataset includes seven models provided in seven distinct folders:
“Basecase_Inj250h_shutin”, basecase scenario of 250 h injection followed by well shut-in,
“Basecase_Inj250h_bleedoff_1h”, basecase scenario of 250 h injection followed by well bleed-off over 1 h,
“Basecase_Inj250h_bleedoff_24h”, basecase scenario of 250 h injection followed by well bleed-off over 24 h,
“Connected_Inj84h_shutin”, connected scenario of 84 h injection followed by well shut-in,
“Connected_Inj84h_bleedoff_1h”, connected scenario of 84 h injection followed by well bleed-off over 1 h,
“Connected_Inj200h_shutin”, connected scenario of 200 h injection followed by well shut-in,
“Connected_Inj200h_bleedoff_1h”, connected scenario of 200 h injection followed by well bleed-off over 1 h.
In each folder, there is a file with the name of the folder ending as “_gen.dat” which contains the input data of the model, including material properties, initial and boundary conditions and the time intervals. There is also a file ending as “_gri.dat” that includes the information on the mesh. The file “root.dat” includes the name of the model. To run the simulation, execute the Code_Bright executables “Cb_v9_3.exe” or “Cb_v9_1_3par4”, i.e., the parallel version of the code running on 4 CPU cores, in each folder., - Project EASY GEO-CARBON (www.easygeocarbon.com) funded by MCIN/AEI through grant number PCI2021-122077-2B.
- The UKRI Postdoc Guarantee Award THMC4CCS funded by the Engineering and Physical Sciences Research Council through grant number EP/X026019/1.
- The Starting Grant GEoREST (www.georest.eu) funded by the European Research Council (ERC) under the European Union’s Horizon 2020 Research and Innovation Program through under Grant agreement No. 801809. , This dataset comprises the input files for numerical simulation of stimulating an enhanced geothermal system and the associated risk of induced seismicity. Numerical models explore the hydromechanical mechanisms of post-injection induced seismicity and the potential impact of bleed-off to control seismicity. The dataset includes seven models provided in seven distinct folders: "Basecase_Inj250h_shutin", basecase scenario of 250 h injection followed by well shut-in, "Basecase_Inj250h_bleedoff_1h", basecase scenario of 250 h injection followed by well bleed-off over 1 h, "Basecase_Inj250h_bleedoff_24h", basecase scenario of 250 h injection followed by well bleed-off over 24 h, "Connected_Inj84h_shutin", connected scenario of 84 h injection followed by well shut-in, "Connected_Inj84h_bleedoff_1h", connected scenario of 84 h injection followed by well bleed-off over 1 h, "Connected_Inj200h_shutin", connected scenario of 200 h injection followed by well shut-in, "Connected_Inj200h_bleedoff_1h", connected scenario of 200 h injection followed by well bleed-off over 1 h., Peer reviewed
DOI: http://hdl.handle.net/10261/374195
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/374195
HANDLE: http://hdl.handle.net/10261/374195
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/374195
PMID: http://hdl.handle.net/10261/374195
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/374195
Ver en: http://hdl.handle.net/10261/374195
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/374195
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