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- Keyword:
- Experimental Psychology, Biopsychology, Environment, and Context
- Publisher:
- Language:
- Date Uploaded:
- 2025-04-14
- Date Modified:
- 2025-04-30
- License:
- Creative Commons BY-NC-ND Attribution-NonCommercial-NoDerivs 4.0 International
- Resource Type:
- Collection
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- Keyword:
- Research practices, Research Data Management, Experimental Design, Research Tools, and Research Technologies
- Publisher:
- Language:
- Date Uploaded:
- 2025-04-07
- Date Modified:
- 2025-04-17
- License:
- Creative Commons BY-NC-ND Attribution-NonCommercial-NoDerivs 4.0 International
- Resource Type:
- Collection
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- Keyword:
- Epigenetics and Environment
- Publisher:
- Language:
- Date Uploaded:
- 2025-04-07
- Date Modified:
- 2025-04-17
- License:
- Creative Commons BY-NC-ND Attribution-NonCommercial-NoDerivs 4.0 International
- Resource Type:
- Collection
-
- Keyword:
- Clinical Psychology and Immunology
- Publisher:
- Language:
- Date Uploaded:
- 2025-04-07
- Date Modified:
- 2025-04-30
- License:
- Creative Commons BY-NC-ND Attribution-NonCommercial-NoDerivs 4.0 International
- Resource Type:
- Collection
-
- Keyword:
- Neuroimaging, Neuropsychology, and Biopsychology
- Publisher:
- Language:
- Date Uploaded:
- 2025-04-07
- Date Modified:
- 2025-04-17
- License:
- Creative Commons BY-NC-ND Attribution-NonCommercial-NoDerivs 4.0 International
- Resource Type:
- Collection
-
- Keyword:
- Cognitive Neuroscience, Fear, Stress, Clinical Psychology and Psychotherapy, and Anxiety
- Publisher:
- Language:
- Date Uploaded:
- 2025-04-07
- Date Modified:
- 2025-04-17
- License:
- Creative Commons BY-NC-ND Attribution-NonCommercial-NoDerivs 4.0 International
- Resource Type:
- Collection
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- Keyword:
- Extinction Learning
- Publisher:
- Language:
- Date Uploaded:
- 2025-04-07
- Date Modified:
- 2025-06-05
- License:
- Creative Commons BY-NC-ND Attribution-NonCommercial-NoDerivs 4.0 International
- Resource Type:
- Collection
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- Description:
- Datasets and Matlab code for figures included in the article 'Theory of potential impurity scattering in pressurized superconducting La3Ni2O7' from authors Steffen Bötzel, Frank Lechermann, Takasada Shibauchi and Ilya M. Eremin and Abstract: Recently discovered high-Tc superconductivity in pressurized bilayer nickelate La3Ni2O7 (La- 327) is likely driven by the non-phononic repulsive interaction. Depending on the interlayer repul- sion strength, the superconducting gap structure is expected to be either d-wave or sign-changing bonding-antibonding s±-wave. Unfortunately, conventional spectroscopic probes of the gap struc- ture are impractical due to the high-pressure requirement. We propose studying the effect of point- like non-magnetic impurities to distinguish these symmetries, which can be achieved by electron irradiation before applying pressure. Here, we theoretically predict conventional suppression for d-wave superconductivity, whereas the suppression for the interlayer s±-wave state depends subtly on the asymmetry of bonding and antibonding subspaces. For the predicted electronic structure of La-327, the s±-wave is more robust, with Tc showing a convex-to-concave transition, indicating a crossover to s++-wave symmetry as impurity concentration increases. We further analyze the sensitivity of these findings to potential electronic structure modifications.
- Keyword:
- impurity scattering, superconductivity, Tc suppression, disorder, bilayer nickelates, and La3Ni2O7
- Publisher:
- Date Uploaded:
- 2025-04-02
- Date Modified:
- 2025-04-09
- License:
- Creative Commons BY Attribution 4.0 International
- Resource Type:
- Dataset
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- Description:
- Reduced chemical kinetic mechanism (chemkin format) for the combustion of methane in a carbon dioxide/oxygen atmosphere at very high pressures (100 to 300 bar). Original mechanism is AramcoMech 2.0 ( https://www.universityofgalway.ie/combustionchemistrycentre/mechanismdownloads/aramcomech20). The reduction method is Global Pathway Selection (Gao et al, Combustion and flame, 167 (2016) 238-247).
- Keyword:
- reaction mechanism, high pressure, oxyfuel combustion, combustion, and co2
- Publisher:
- Date Uploaded:
- 2025-03-21
- Date Modified:
- 2025-03-24
- License:
- Creative Commons BY-NC-ND Attribution-NonCommercial-NoDerivs 4.0 International
- Resource Type:
- Model
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- Description:
- Simulation tasks and numerical codes have become increasingly complex in the context of temporal and spatial upscaling for understanding and predicting subsurface rock mass mechanics, for example associated with radioactive waste disposal. Benchmark procedures based on laboratory datasets are required to verify the predictive capabilities of computational approaches. In this study, a high-quality laboratory dataset of conventional geomechanical experiments on granite was generated. Numerical simulations of the experiments were performed as proof-of-concept using COMSOL Multiphysics and RocScience RS to derive a benchmark procedure for numerical quality assurance that can be applied to computational approaches in the context of nuclear waste disposal and beyond. The laboratory schedule was specifically developed for the numerical simulation of time-dependent deformation characteristics in granite. Splitting tensile strength, uniaxial compressive strength, and triaxial compressive strength of carefully characterised specimens were investigated at different strain rates covering five orders of magnitude. Strength decreased with decreasing strain rate, and the presence of water decreased strength significantly. A significant contribution of end face friction in the experimental setup to the results of strength tests was verified and recommendations for preparational and experimental procedures in deformation experiments on granite were derived. Based on the laboratory dataset, 2D numerical simulations with RocScience RS2 successfully reproduced the effect of different lubricants to modify end face friction on strength, and COMSOL Multiphysics was able to reproduce the time-dependent deformation characteristics observed for granite. Using crack phase field damage modelling, COMSOL Multiphysics predicted triaxial compressive strength from uniaxial compressive strength by adjusting nothing but the boundary conditions. In both approaches, the adaptation of microstructural properties was required to successfully simulate the experimental findings pointing to a distinct need to further improve the understanding of microstructural processes causing the time-dependent deformation characteristics and to evaluate the potential for temporal upscaling to long-term processes exceeding those covered by laboratory experiments. The results of this study will significantly contribute to gaining more confidence in the predictive capabilities of numerical codes and identify code-specific parameters that are critical for successful prediction. , Please cite the following reference when using our dataset in your research: , Witte L.C., Asghari Chehreh H., Backers T., Duda M., Aydin M. & Parvin S., 2024. Digital appendix to 'Predictive capability of coupled rock behaviour – development of an experimentally based benchmark for numerical quality assurance (BeNuQuA)'. ReSeeD Research Data Repository, Research Data Services (RDS) of the Ruhr University Bochum., and Access to the dataset is available upon request. Please contact Prof. Dr. Tobias Backers ( tobias.backers@rub.de) or Dr. Mandy Duda ( mandy.duda@rub.de) for further information.
- Keyword:
- rocks, laboratory experiments, code comparison, Comsol Multiphysics, Rocscience, numerical simulation, benchmark, granite, time-dependence, rock deformation, and nuclear waste
- Subject:
- Comsol Multiphysics, rock deformation, nuclear waste, rocks, time-dependence, laboratory experiments, Rocscience, code comparison, benchmark, numerical simulation, and granite
- Publisher:
- Language:
- English
- Date Uploaded:
- 2025-02-20
- Date Modified:
- 2025-06-05
- License:
- Creative Commons BY-SA Attribution-ShareAlike 4.0 International
- Resource Type:
- Dataset
