{"type": "FeatureCollection", "features": [{"id": "10.1002/adfm.202215105", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:14:22Z", "type": "Journal Article", "created": "2023-04-24", "title": "Modular Design for Versatile Broadband Polarizing Metasurfaces with Freely Switching Functions", "description": "Abstract

Polarization is a fundamental property of electromagnetic waves that plays a key role in many physical phenomena and applications. Schemes to manipulate it are revisited with the emergence of metasurfaces, which have brought multi\uffe2\uff80\uff90functionalities straightforwardly. However, this has come at the expense of design complexity that relies strongly on field theory. Here, an ingenious strategy of modular design is proposed to construct subwavelength multifunctional polarization control devices. Chiral metasurfaces with different handedness are first proposed and regarded as modules. The versatile polarization controller can thus be obtained with the combination of different modules. These experiments demonstrate that the well\uffe2\uff80\uff90designed polarization controller possesses reconfigurable functionality, and various broadband polarization and amplitude regulation functions with high efficiency including arbitrary linear polarization rotation, asymmetric transmission effect, neutral\uffe2\uff80\uff90density\uffe2\uff80\uff90like filter, polarization beam splitter, etc., can be readily realized just by changing the cascaded modules. The physical mechanisms of the versatile polarization controller and chiral metasurface modules are both guaranteed by the Fabry\uffe2\uff80\uff93P\uffc3\uffa9rot\uffe2\uff80\uff90like resonances, which are theoretically verified via the transfer matrix method. It is envisioned that the modular concept will be of great benefit to designing compact multifunctional polarization controllers.Es wurden die Bedingungen der Erythrochinreaktion mit Chinin systematisch variiert, und es wurde eine neue Vorschrift erarbeitet, die eine maximale F\uffc3\uffa4rbung ergibt. Aus der Modellsubstanz 6\uffe2\uff80\uff90Methoxychinolin wurde die f\uffc3\uffbcr die Farbreaktion verantwortliche Substanz rein isoliert und auf ihre Konstitution hin untersucht. Alle Befunde sprechen daf\uffc3\uffbcr, da\uffc3\uff9f der Substanz die dimere Parachinonstruktur II zukommt. \uffe2\uff80\uff93 Es ist wahrscheinlich, da\uffc3\uff9f die Farbreaktion mit Chinin zu einem analogen Produkt f\uffc3\uffbchrt, das seiner Labilit\uffc3\uffa4t wegen nur nicht in reiner Form gewonnen werden konnte.We propose two methods to calibrate the parameters of the epidemic\uffe2\uff80\uff90type aftershock sequence (ETAS) model based on expectation maximization (EM) while accounting for temporal variation of catalog completeness. The first method allows for model calibration on long\uffe2\uff80\uff90term earthquake catalogs with temporal variation of the completeness magnitude,mc. This calibration technique is beneficial for long\uffe2\uff80\uff90term probabilistic seismic hazard assessment (PSHA), which is often based on a mixture of instrumental and historical catalogs. The second method generalizes the concept ofmc, considering rate\uffe2\uff80\uff90 and magnitude\uffe2\uff80\uff90dependent detection probability, and allows for self\uffe2\uff80\uff90consistent estimation of ETAS parameters and high\uffe2\uff80\uff90frequency detection incompleteness. With this approach, we aim to address the potential biases in parameter calibration due to short\uffe2\uff80\uff90term aftershock incompleteness, embracing incompleteness instead of avoiding it. Using synthetic tests, we show that both methods can accurately invert the parameters of simulated catalogs. We then use them to estimate ETAS parameters for California using the earthquake catalog since 1932. To explore how model calibration, inclusion of small events, and accounting for short\uffe2\uff80\uff90term incompleteness affect earthquakes' predictability, we systematically compare variants of ETAS models based on the second approach in pseudo\uffe2\uff80\uff90prospective forecasting experiments for California. Our proposed model significantly outperforms the ETAS null model, with decreasing information gain for increasing target magnitude threshold. We find that the ability to include small earthquakes for simulation of future scenarios is the primary driver of the improvement and that accounting for incompleteness is necessary. Our results have significant implications for our understanding of earthquake interaction mechanisms and the future of seismicity forecasting.

", "keywords": ["Physics - Geophysics", "13. Climate action", "0103 physical sciences", "earthquake forecasting", "ETAS", "FOS: Physical sciences", "short-term aftershock incompleteness", "data incompleteness", "01 natural sciences", "model inversion", "data incompleteness; model inversion; ETAS; earthquake forecasting", "Geophysics (physics.geo-ph)", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1002/essoar.10507003.1"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Geophysical%20Research%3A%20Solid%20Earth", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1002/essoar.10507003.1", "name": "item", "description": "10.1002/essoar.10507003.1", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1002/essoar.10507003.1"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-05-11T00:00:00Z"}}, {"id": "10.1002/lpor.201900164", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:14:32Z", "type": "Journal Article", "created": "2019-09-16", "title": "Enhanced Dynamic Casimir Effect in Temporally and Spatially Modulated Josephson Transmission Line", "description": "Abstract

Real photon pairs can be created in a dynamic cavity with an oscillating boundary or temporally modulated refractive index of the constituent medium. This effect is called dynamic Casimir effect (DCE), which represents one of the most amazing predictions of quantum field theory. The DCE has been experimentally observed in Josephson metamaterials embedded in a microwave cavity. However, the efficiency of the observed DCE is extremely weak, entailing a complex external signal enhancement process to detect the signal. Here, it is shown that the DCE can be drastically enhanced in a dynamic 1D cavity consisting of a superconducting quantum interference device (SQUID)\uffe2\uff80\uff90based Josephson transmission line with both temporal and spatial modulation on the effective inductance profile through flux\uffe2\uff80\uff90biasing. Such a system can resonantly generate photons at driving frequencies equal to even or odd integer times of that of the fundamental cavity mode governed by the symmetry of the spatial modulation. Interesting spectral and scaling behaviors for photons excited at the band edge are further observed. The discovery introduces a new degree of freedom\uffe2\uff80\uff94spatial modulation\uffe2\uff80\uff94to enhance the efficiency of DCE.Performance degradation of solid oxide fuel cells due to chromium volatilization is a well\uffe2\uff80\uff90investigated issue in the literature. Therefore, retention coatings were developed to distinctly reduce the chromium volatilization. One approach was by alloying with manganese to ferritic steels to form manganese chromium spinel which is reported to decrease chromium volatilization by 61\uffe2\uff80\uff9375%. In the present paper, the volatilization rates of pure manganese chromium spinel ceramics were examined as well as those of the two oxides forming this spinel\uffe2\uff80\uff94pure chromium oxide and pure manganese oxide\uffe2\uff80\uff94in synthetic air containing 10% water vapor (high p(O2)) and argon/hydrogen containing 10% water vapor (low p(O2)) at 850\uffc2\uffb0C, 950\uffc2\uffb0C, and 1,050\uffc2\uffb0C. Chromium oxide showed higher volatilization rates in high p(O2), whereas manganese oxide demonstrated higher volatilization rates in low p(O2). Contradictory to the literature, manganese chromium spinel displayed the highest volatilization rates in both atmospheres and nonlinear kinetics behavior. This deviation from linear behavior can be attributed to diffusion\uffe2\uff80\uff90controlled volatilization in high p(O2).

", "keywords": ["0103 physical sciences", "02 engineering and technology", "0210 nano-technology", "01 natural sciences", "chromium oxide", " diffusion\u2010controlled volatilization", " manganese chromium spinel", " manganese oxide", " water vapor corrosion"]}, "links": [{"href": "https://onlinelibrary.wiley.com/doi/pdf/10.1002/maco.201810655"}, {"href": "https://doi.org/10.1002/maco.201810655"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Materials%20and%20Corrosion", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1002/maco.201810655", "name": "item", "description": "10.1002/maco.201810655", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1002/maco.201810655"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-04-03T00:00:00Z"}}, {"id": "10.1007/s00348-021-03260-1", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:14:46Z", "type": "Journal Article", "created": "2021-07-19", "title": "Experimental evaluation of methodologies for single transient cavitation bubble generation in liquids", "description": "Abstract

Single bubble dynamics are of fundamental importance for understanding the underlying mechanisms in liquid\uffe2\uff80\uff93vapor transition phenomenon known as cavitation. In the past years, numerous studies were published and results were extrapolated from one technique to another and further on to \uffe2\uff80\uff9creal-world\uffe2\uff80\uff9d cavitation. In the present paper, we highlight the issues of using various experimental approaches to study the cavitation bubble phenomenon and its effects. We scrutinize the transients bubble generation mechanisms behind tension-based and energy deposition-based techniques and overview the physics behind the bubble production. Four vapor bubble generation methods, which are most commonly used in single bubble research, are directly compared in this study: the pulsed laser technique, a high- and low-voltage spark discharge and the tube arrest method. Important modifications to the experimental techniques are implemented, demonstrating improvement of the bubble production range, control and repeatability. Results are compared to other similar techniques from the literature, and an extensive report on the topic is given in the scope of this work. Simple-to-implement techniques are presented and categorized herein, in order to help with future experimental design. Repeatability and sphericity of the produced bubbles are examined, as well as a comprehensive overview on the subject, listing the bubble production range and highlighting the attributes and limitation for the transient cavitation bubble techniques.

Graphic abstract

", "keywords": ["mehur\u010deki", "info:eu-repo/classification/udc/620.1/.2", "02 engineering and technology", "cavitation", " bubbles", " lasers", "01 natural sciences", "info:eu-repo/classification/udc/620.193.16:532.528", "bubbles", "kavitacija", "cavitation", "kavitacija", " mehur\u010deki", " laserji", "0103 physical sciences", "laserji", "0210 nano-technology", "lasers"]}, "links": [{"href": "https://link.springer.com/content/pdf/10.1007/s00348-021-03260-1.pdf"}, {"href": "https://doi.org/10.1007/s00348-021-03260-1"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Experiments%20in%20Fluids", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00348-021-03260-1", "name": "item", "description": "10.1007/s00348-021-03260-1", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00348-021-03260-1"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-07-19T00:00:00Z"}}, {"id": "10.1007/s10518-021-01284-w", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:15:04Z", "type": "Journal Article", "created": "2022-01-09", "title": "Vertical seismic protection of structures with inerter-based negative stiffness absorbers", "keywords": ["0103 physical sciences", "02 engineering and technology", "01 natural sciences", "0201 civil engineering"]}, "links": [{"href": "https://link.springer.com/content/pdf/10.1007/s10518-021-01284-w.pdf"}, {"href": "https://doi.org/10.1007/s10518-021-01284-w"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Bulletin%20of%20Earthquake%20Engineering", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10518-021-01284-w", "name": "item", "description": "10.1007/s10518-021-01284-w", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10518-021-01284-w"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-01-09T00:00:00Z"}}, {"id": "10.1007/s10496-007-0001-4", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:15:04Z", "type": "Journal Article", "created": "2007-04-05", "title": "Strongly continuous integrated cosine operator functions with growth \u03c9", "description": "Summary: For a continuous increasing function ( omega: [0, infty) to (0, infty) ) of finite exponential type, we establish a Hille--Yosida type theorem for strongly continuous integrated cosine operator functions with (O ( omega) ). It includes the well-known polynomially bounded and exponentially bounded cases.", "keywords": ["generator", "generation theorem", "0103 physical sciences", "Operator sine and cosine functions and higher-order Cauchy problems", "0101 mathematics", "cosine operator function", "01 natural sciences"], "contacts": [{"organization": "Wang, Meiying, Chen, Guoxiang,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1007/s10496-007-0001-4"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Analysis%20in%20Theory%20and%20Applications", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10496-007-0001-4", "name": "item", "description": "10.1007/s10496-007-0001-4", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10496-007-0001-4"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-03-01T00:00:00Z"}}, {"id": "10.1007/s12217-019-9674-5", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:15:32Z", "type": "Journal Article", "created": "2019-01-19", "title": "Investigation on Wetting and Melting Behavior of Lunar Regolith Simulant for Additive Manufacturing Application", "description": "Applying in-situ resources combined with Additive Manufacturing allows for on-demand fabrication in space. Regarding the powder-based Additive Manufacturing, wettability of the melt material affects the properties of the final product. In this study, viscosity temperatures, dilatometric sintering curves and contact angles of JSC-2 lunar simulant are studied via Hot Stage Microscopy. Experiments are conducted using platinum substrates as well as pre-sintered regolith platforms in the temperature range of 25\u00a0\u00b0C to 1450\u00a0\u00b0C. Furthermore, the relation of the viscosity temperatures and the contact angles are discussed.", "keywords": ["0103 physical sciences", "3D Druck", "01 natural sciences", "7. Clean energy"]}, "links": [{"href": "https://doi.org/10.1007/s12217-019-9674-5"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Microgravity%20Science%20and%20Technology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s12217-019-9674-5", "name": "item", "description": "10.1007/s12217-019-9674-5", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s12217-019-9674-5"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-01-19T00:00:00Z"}}, {"id": "10.1016/0021-8928(86)90019-5", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:15:36Z", "type": "Journal Article", "created": "2003-03-15", "title": "The use of the method of averaging to study non-linear oscillations of the celtic stone", "description": "The approximate solution of the equations of the perturbed motion of a celtic stone near its position of equilibrium is used for a qualitative and quantitative explanation of the following effect established by numerical integration of the complete equations. If the celtic stone is rotated about the vertical axis in a specified direction, then after a fairly short time it ceases to rotate, begins to oscillate about the horizontal axis, and then resumes its rotation in the opposite direction. For some of the models of the celtic stone the change in the direction of rotation may occur more than once.", "keywords": ["0203 mechanical engineering", "0103 physical sciences", "Motion of the gyroscope", "numerical integration", "celtic stone", "02 engineering and technology", "Kinematics of mechanisms and robots", "perturbed motion", "equilibrium", "01 natural sciences", "approximate solution"], "contacts": [{"organization": "Paskal, M.", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/0021-8928(86)90019-5"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Applied%20Mathematics%20and%20Mechanics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/0021-8928(86)90019-5", "name": "item", "description": "10.1016/0021-8928(86)90019-5", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/0021-8928(86)90019-5"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1986-01-01T00:00:00Z"}}, {"id": "10.1016/j.apm.2022.05.037", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:15:54Z", "type": "Journal Article", "created": "2022-05-25", "title": "Locally resonant metamaterials utilizing dynamic directional amplification: An application for seismic mitigation", "keywords": ["0103 physical sciences", "02 engineering and technology", "0210 nano-technology", "01 natural sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.apm.2022.05.037"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Applied%20Mathematical%20Modelling", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.apm.2022.05.037", "name": "item", "description": "10.1016/j.apm.2022.05.037", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.apm.2022.05.037"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-10-01T00:00:00Z"}}, {"id": "10.1016/j.chemgeo.2015.08.002", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:16:06Z", "type": "Journal Article", "created": "2015-08-07", "title": "Barium stable isotope composition of the Earth, meteorites, and calcium\u2013aluminum-rich inclusions", "description": "Abstract High-precision stable Ba isotope ratios are reported in a variety of terrestrial samples, undifferentiated primitive meteorites, and calcium\u2013aluminum-rich inclusions (CAIs) from the Allende chondrite. All whole-rock terrestrial and meteorite samples are isotopically indistinguishable at a 50 parts per million (ppm) level per atomic mass unit (amu). Three CAIs are isotopically light, with \u03b4138/137Ba (permil deviation of the 138Ba/137Ba ratio from a terrestrial standard) values down to \u2212\u00a00.6\u2030 compared to whole-rock meteorites, whereas the matrix is enriched in heavy isotopes (\u03b4138/137Ba: +\u00a00.2\u2030). Similar light isotope enrichments in CAIs have been previously observed for Eu, Sr, and Ca, while for most other elements CAIs are enriched in the heavier isotopes (e.g. Mg, Fe). Kinetic isotopic fractionation is a possible explanation for the enrichment in the lightest isotopes, either by condensation from a vapor phase enriched in light isotopes by kinetic effects or by kinetic fractionation during non-equilibrium condensation of an undercooled gas as suggested for Ca isotopes. However, the common property of Ba, Eu, and Sr is that they all have a low first ionization potential. We suggest that electromagnetic sorting of ionized species in the early Solar System is a possible alternative mechanism to explain the depletion in heavy isotopes observed in refractory inclusions for those elements.", "keywords": ["CAIs", "[SDU] Sciences of the Universe [physics]", "Isotope geochemistry", "Barium", "13. Climate action", "4. Education", "0103 physical sciences", "01 natural sciences", "7. Clean energy", "Meteorites", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.chemgeo.2015.08.002"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Chemical%20Geology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.chemgeo.2015.08.002", "name": "item", "description": "10.1016/j.chemgeo.2015.08.002", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.chemgeo.2015.08.002"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-10-01T00:00:00Z"}}, {"id": "10.1016/j.eml.2021.101564", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:16:18Z", "type": "Journal Article", "created": "2021-12-08", "title": "Cloaking strategy for Love waves", "description": "Love waves are antiplane elastic waves which propagate along the surface of a heterogeneous medium. Under time-harmonic regime, they are governed by a scalar equation of the Helmholtz type. We exploit the invariance of this governing equation under an in-plane arbitrary coordinate transformation to design broadband cloaks for surface defects. In particular, we apply transformation elastodynamics to determine the anisotropic, position dependent, mechanical properties of ideal cloaks able to hide triangular and parabolic-shaped defects. Dispersion analysis and time-harmonic numerical simulations are employed to validate the proposed strategy. Next, we utilize layered monoclinic materials, with homogenized properties matching those of ideal cloaks, to design feasible cloaks. The performance of the layered cloaks is validated via time-harmonic numerical simulations which show a significant reduction of the defect-generated scattered fields.", "keywords": ["Love waves; Cloaking; Transformation elastodynamics; Layered media; Homogenization; Metamaterials", "0103 physical sciences", "FOS: Physical sciences", "Physics - Applied Physics", "Applied Physics (physics.app-ph)", "01 natural sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.eml.2021.101564"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Extreme%20Mechanics%20Letters", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.eml.2021.101564", "name": "item", "description": "10.1016/j.eml.2021.101564", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.eml.2021.101564"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-01-01T00:00:00Z"}}, {"id": "10.1016/j.engstruct.2024.118894", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:16:18Z", "type": "Journal Article", "created": "2024-09-06", "title": "Experimental testing and numerical validation of the \u0395xtended KDamper: A negative stiffness-based vibration absorber", "description": "ISSN:0141-0296", "keywords": ["Seismic isolation; Negative stiffness; Damping mechanisms; Experimental validation; Vibration absorber; KDamper", "0103 physical sciences", "02 engineering and technology", "01 natural sciences", "0201 civil engineering"]}, "links": [{"href": "https://doi.org/10.1016/j.engstruct.2024.118894"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Engineering%20Structures", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.engstruct.2024.118894", "name": "item", "description": "10.1016/j.engstruct.2024.118894", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.engstruct.2024.118894"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-12-01T00:00:00Z"}}, {"id": "10.1016/j.epsl.2017.10.018", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:16:23Z", "type": "Journal Article", "created": "2017-10-18", "title": "Chromium isotopic homogeneity between the Moon, the Earth, and enstatite chondrites", "description": "Among the elements exhibiting non-mass dependent isotopic variations in meteorites, chromium (Cr) has been central in arguing for an isotopic homogeneity between the Earth and the Moon. However, the 54Cr isotope composition of the Moon relies on 2 samples only, which define an average value that is slightly different from the terrestrial standard. Here, by determining the Cr isotopic composition of 17 lunar, 9 terrestrial and 5 enstatite chondrite samples, we re-assess the isotopic similarity between these different planetary bodies, and provide the first robust estimate for the Moon. In average, terrestrial and enstatite samples show similar eps_54Cr. On the other hand, lunar samples show variables excesses of 53Cr and 54Cr compared to terrestrial and enstatite chondrites samples with correlated eps_53Cr and eps_54Cr (per 10,000 deviation of the 53Cr/52Cr and 54Cr/52Cr ratios normalized to the 50Cr/52Cr ratio from Cr standard). Unlike previous suggestions, we show for the first time that cosmic irradiation can affect significantly the Cr isotopic composition of lunar materials. Moreover, we also suggest that rather than spallation reactions, neutron capture effects are the dominant process controlling the Cr isotope composition of lunar igneous rocks. This is supported by the correlation between eps_53Cr and eps_54Cr, and 150Sm/152Sm ratios. After correction of these effects, the average eps_54Cr of the Moon is indistinguishable from the terrestrial and enstatite chondrite materials reinforcing the idea of an Earth-Moon-Enstatite chondrite system homogeneity. This is compatible with the most recent scenarios of Moon formation suggesting an efficient physical homogenization after a high-energy impact on a fast spinning Earth, and/or with an impactor originating from the same reservoir in the inner proto-planetary disk as the Earth and enstatite chondrites and having similar composition.", "keywords": ["Earth and Planetary Astrophysics (astro-ph.EP)", "cosmogenic effects", "FOS: Physical sciences", "01 natural sciences", "3. Good health", "Moon formation", "13. Climate action", "chromium isotopes", "[SDU.STU.GC] Sciences of the Universe [physics]/Earth Sciences/Geochemistry", "0103 physical sciences", "enstatite chondrite", "neutron capture", "Astrophysics - Earth and Planetary Astrophysics", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Christa G\u00f6pel, Fr\u00e9d\u00e9ric Moynier, Fr\u00e9d\u00e9ric Moynier, B\u00e9reng\u00e8re Mougel,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.epsl.2017.10.018"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Earth%20and%20Planetary%20Science%20Letters", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.epsl.2017.10.018", "name": "item", "description": "10.1016/j.epsl.2017.10.018", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.epsl.2017.10.018"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-01-01T00:00:00Z"}}, {"id": "10.1016/j.epsl.2017.12.042", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:16:23Z", "type": "Journal Article", "created": "2018-01-16", "title": "Chondritic Mn/Na ratio and limited post-nebular volatile loss of the Earth", "description": "Abstract The depletion pattern of volatile elements on Earth and other differentiated terrestrial bodies provides a unique insight as to the nature and origin of planetary building blocks. The processes responsible for the depletion of volatile elements range from the early incomplete condensation in the solar nebula to the late de-volatilization induced by heating and impacting during planetary accretion after the dispersion of the H2-rich nebular gas. Furthermore, as many volatile elements are also siderophile (metal-loving), it is often difficult to deconvolve the effect of volatility from core formation. With the notable exception of the Earth, all the differentiated terrestrial bodies for which we have samples have non-chondritic Mn/Na ratios, taken as a signature of post-nebular volatilization. The bulk silicate Earth (BSE) is unique in that its Mn/Na ratio is chondritic, which points to a nebular origin for the depletion; unless the Mn/Na in the BSE is not that of the bulk Earth (BE), and has been affected by core formation through the partitioning of Mn in Earth's core. Here we quantify the metal\u2013silicate partitioning behavior of Mn at deep magma ocean pressure and temperature conditions directly applicable to core formation. The experiments show that Mn becomes more siderophile with increasing pressure and temperature. Modeling the partitioning of Mn during core formation by combining our results with previous data at lower P\u2013T conditions, we show that the core likely contains a significant fraction (20 to 35%) of Earth's Mn budget. However, we show that the derived Mn/Na value of the bulk Earth still lies on the volatile-depleted end of a trend defined by chondritic meteorites in a Mn/Na vs Mn/Mg plot, which tend to higher Mn/Na with increasing volatile depletion. This suggests that the material that formed the Earth recorded similar chemical fractionation processes for moderately volatile elements as chondrites in the solar nebula, and experienced limited post nebular volatilization.", "keywords": ["550", "13. Climate action", "0103 physical sciences", "[SDU.STU] Sciences of the Universe [physics]/Earth Sciences", "01 natural sciences", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://researchonline.jcu.edu.au/62754/1/62754.pdf"}, {"href": "https://doi.org/10.1016/j.epsl.2017.12.042"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Earth%20and%20Planetary%20Science%20Letters", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.epsl.2017.12.042", "name": "item", "description": "10.1016/j.epsl.2017.12.042", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.epsl.2017.12.042"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-03-01T00:00:00Z"}}, {"id": "10.1016/j.ijengsci.2023.103899", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:16:43Z", "type": "Journal Article", "created": "2023-06-09", "title": "Cloaking Rayleigh waves via symmetrized elastic tensors", "description": "In this work we propose a strategy based on coordinate transformation to cloak Rayleigh waves. Rayleigh waves are in-plane elastic waves which propagate along the free surface of semi-infinite media. They are governed by Navier equations that retain their form for an in-plane arbitrary coordinate transformation x=\u039e(X), upon choosing the specific kinematic relation U(\u039e(X))=u(x) between displacement fields in virtual, i.e. reference, (U) and transformed, i.e. cloaked, (u) domains. However, the elasticity tensor of the transformed domain is no longer fully symmetric, and thus, it is difficult to design with common materials. Motivated by this issue, we propose a symmetrization technique, based on the arithmetic mean, to obtain anisotropic, yet symmetric, elastic tensors for Rayleigh wave near-cloaking. In particular, by means of time-harmonic numerical simulations and dispersion analyses, we compare the efficiency of triangular and semi-circular cloaks designed with the original non-symmetric tensors and the related symmetrized versions. In addition, different coordinate transformations, e.g. linear, quadratic and cubic, are adopted for the semi-circular cloaks. Through the analyses, we show that a symmetrized semi-circular cloak, obtained upon the use of a quadratic transformation, performs better than the other investigated designs. Our study provides a step towards the design of feasible and efficient broadband elastic metamaterial cloaks for surface waves.", "keywords": ["0103 physical sciences", "Cloaking; Metamaterials; Rayleigh waves; Symmetrization; Transformation elastodynamics", "01 natural sciences", "[PHYS] Physics [physics]"]}, "links": [{"href": "https://cris.unibo.it/bitstream/11585/940480/3/1-s2.0-S0020722523000903-main.pdf"}, {"href": "https://doi.org/10.1016/j.ijengsci.2023.103899"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/International%20Journal%20of%20Engineering%20Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.ijengsci.2023.103899", "name": "item", "description": "10.1016/j.ijengsci.2023.103899", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.ijengsci.2023.103899"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-10-01T00:00:00Z"}}, {"id": "10.1016/j.ijmecsci.2022.108005", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:16:43Z", "type": "Journal Article", "created": "2022-12-09", "title": "Non-smooth dynamics of buckling based metainterfaces: Rocking-like motion and bifurcations", "description": "Open Access34 pages, 15 figures", "keywords": ["period doubling", "Physics - Classical Physics; Physics - Classical Physics", "Nonlinear dynamics", "multistability anticipation", "0103 physical sciences", "Classical Physics (physics.class-ph)", "FOS: Physical sciences", "grazing", "Physics - Classical Physics", "Nonlinear dynamics; Period doubling; Grazing; Multistability anticipation", "0101 mathematics", "01 natural sciences"]}, "links": [{"href": "https://iris.unitn.it/bitstream/11572/372109/1/1-s2.0-S0020740322008839-main.pdf"}, {"href": "https://doi.org/10.1016/j.ijmecsci.2022.108005"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/International%20Journal%20of%20Mechanical%20Sciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.ijmecsci.2022.108005", "name": "item", "description": "10.1016/j.ijmecsci.2022.108005", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.ijmecsci.2022.108005"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-03-01T00:00:00Z"}}, {"id": "10.1016/j.ijmultiphaseflow.2021.103700", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:16:43Z", "type": "Journal Article", "created": "2021-05-26", "title": "Kelvin-Helmholtz instability governs the cavitation cloud shedding in Venturi microchannel", "description": "Abstract The paper shows visualization of cavitation inside a micro-Venturi channel. While the initial aim of the study was to establish supercavitating conditions inside a micro-Venturi, yet we found that this regime is suppressed due to the formation of a Kelvin-Helmholtz instability, which triggers a semi periodical attached cavity collapse. In depth observations using high speed imaging with visible light and X-rays revealed that this is, besides the re-entrant jet and the shock wave, a third mechanism leading to the shedding of cloud cavitation. In addition, a simple model was proposed which explains the formation of the Kelvin-Helmholtz instability in cavitating micro-Venturi and also offers explanation on why this is the dominant mechanism of cavitation cloud shedding at small scales.", "keywords": ["Venturi microchannel", "Kelvin-Helmholtz instability", "kavitacija", " Kelvin-Helmholt nestabilnost", " Venturijev mikrokanal", "02 engineering and technology", "info:eu-repo/classification/udc/532.528(045)", "01 natural sciences", "Kelvin-Helmholtzova nestabilnost", "kavitacija", "cavitation", "Venturijev mikrokanal", "info:eu-repo/classification/udc/532", "0103 physical sciences", "cavitation", " Kelvin-Helmholtz instability", " Venturi microchannel", "0204 chemical engineering"]}, "links": [{"href": "https://doi.org/10.1016/j.ijmultiphaseflow.2021.103700"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/International%20Journal%20of%20Multiphase%20Flow", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.ijmultiphaseflow.2021.103700", "name": "item", "description": "10.1016/j.ijmultiphaseflow.2021.103700", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.ijmultiphaseflow.2021.103700"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-09-01T00:00:00Z"}}, {"id": "10.1016/j.jfluidstructs.2011.11.001", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:16:49Z", "type": "Journal Article", "created": "2011-12-10", "title": "Fluid\u2013structure interaction with pipe-wall viscoelasticity during water hammer", "description": "Fluid\u2013structure interaction (FSI) due to water hammer in a pipeline which has viscoelastic wall behaviour is studied. Appropriate governing equations are derived and numerically solved. In the numerical implementation of the hydraulic and structural equations, viscoelasticity is incorporated using the Kelvin\u2013Voigt mechanical model. The equations are solved by two different approaches, namely the Method of Characteristics\u2013Finite Element Method (MOC-FEM) and full MOC. In both approaches two important effects of FSI in fluid-filled pipes, namely Poisson and junction coupling, are taken into account. The study proposes a more comprehensive model for studying fluid transients in pipelines as compared to previous works, which take into account either FSI or viscoelasticity. To verify the proposed mathematical model and its numerical solutions, the following problems are investigated: axial vibration of a viscoelastic bar subjected to a step uniaxial loading, FSI in an elastic pipe, and hydraulic transients in a pressurised polyethylene pipe without FSI. The results of each case are checked with available exact and experimental results. Then, to study the simultaneous effects of FSI and viscoelasticity, which is the new element of the present research, one problem is solved by the two different numerical approaches. Both numerical methods give the same results, thus confirming the correctness of the solutions.", "keywords": ["0103 physical sciences", "02 engineering and technology", "01 natural sciences", "0201 civil engineering"]}, "links": [{"href": "https://doi.org/10.1016/j.jfluidstructs.2011.11.001"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Fluids%20and%20Structures", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.jfluidstructs.2011.11.001", "name": "item", "description": "10.1016/j.jfluidstructs.2011.11.001", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.jfluidstructs.2011.11.001"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-01-01T00:00:00Z"}}, {"id": "10.1016/j.jmps.2021.104665", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:16:51Z", "type": "Journal Article", "created": "2021-10-13", "title": "A way to hypo-elastic artificial materials without a strain potential and displaying flutter instability", "description": "Open AccessCauchy-elastic solids include hyper-elasticity and a subset of elastic materials for which the stress does not follow from a scalar strain potential. More in general, hypo-elastic materials are only defined incrementally and comprise Cauchy-elasticity. Infringement of the hyper-elastic 'dogma' is so far unattempted and normally believed to be impossible, as it apparently violates thermodynamics, because energy may be produced in closed strain cycles. Contrary to this belief, we show that non-hyper-elastic behavior is possible and we indicate the way to a practical realization of this new concept. In particular, a design paradigm is established for artificial materials where follower forces, so far ignored in homogenization schemes, are introduced as loads prestressing an elastic two-dimensional grid made up of linear elastic rods (reacting to elongation, flexure and shear). A rigorous application of Floquet-Bloch wave asymptotics yields an unsymmetric acoustic tensor governing the textit{incremental} dynamics of the effective material. The latter is therefore the incremental response of a hypo-elastic solid, which does not follow from a strain potential and thus does not belong to hyper-elasticity. Through the externally applied follower forces (which could be originated via interaction with a fluid, or gas, or by application of Coulomb friction, or non-holonomic constraints), the artificial material may adsorb/release energy from/to the environment and therefore produce energy in a closed strain loop, without violating any rule of thermodynamics. The solid is also shown to display flutter, a material instability corresponding to a Hopf bifurcation, which was advocated as possible in plastic solids, but never experimentally found and so far believed to be impossible in elasticity.", "keywords": ["0103 physical sciences", "Bloch waves; Cauchy-elasticity; Dynamic homogenization; Follower forces; Hypo-elasticity", "Dynamic homogenization", "Classical Physics (physics.class-ph)", "FOS: Physical sciences", "Cauchy-elasticity", "Physics - Classical Physics", "Hypo-elasticity", "Follower forces", "Bloch waves", "01 natural sciences"]}, "links": [{"href": "https://iris.unitn.it/bitstream/11572/341172/8/1-s2.0-S0022509621002969-main.pdf"}, {"href": "https://iris.unitn.it/bitstream/11572/341172/11/2107.12951R.pdf"}, {"href": "https://doi.org/10.1016/j.jmps.2021.104665"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20the%20Mechanics%20and%20Physics%20of%20Solids", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.jmps.2021.104665", "name": "item", "description": "10.1016/j.jmps.2021.104665", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.jmps.2021.104665"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-01-01T00:00:00Z"}}, {"id": "10.1016/j.mee.2016.10.008", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:16:53Z", "type": "Journal Article", "created": "2016-10-19", "title": "Fractal inductors on flexible plastic substrate fabricated by laser ablation", "description": "Abstract In this paper, the feasibility of laser ablated inductors of fractal design on flexible plastic substrate is demonstrated. Inductors are used to store energy during each switching cycle in a switching voltage regulator circuit. Sierpinski fractal inductors of the second and the third iteration were designed, fabricated, and characterized. Two conductive materials, commercially available, were investigated \u2013 copper and aluminium adhesive tapes. The inductors are ablated with a current of 28.5\u00a0A, a frequency of 50\u00a0kHz and a speed of 1000\u00a0mm/s in five passes. High frequency parameters as inductance, quality factor, and resistance were analyzed. The inductors were characterized in the frequency range from 10\u00a0kHz to 1\u00a0GHz. Copper inductors showed better performances than aluminium inductors.", "keywords": ["2. Zero hunger", "0103 physical sciences", "0202 electrical engineering", " electronic engineering", " information engineering", "02 engineering and technology", "01 natural sciences", "7. Clean energy"]}, "links": [{"href": "https://doi.org/10.1016/j.mee.2016.10.008"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Microelectronic%20Engineering", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.mee.2016.10.008", "name": "item", "description": "10.1016/j.mee.2016.10.008", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.mee.2016.10.008"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-01-01T00:00:00Z"}}, {"id": "10.1016/j.mee.2017.04.018", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:16:53Z", "type": "Journal Article", "created": "2017-04-26", "title": "Performance analysis of fractal transformers fabricated by laser ablation on a flexible magnetic substrate", "description": "Abstract In this paper, performance analysis of bendable transformers with magnetic core is demonstrated. The transformers are fabricated by laser ablation. The fabrication method is green and on demand. Transformers are important components used for switched power supplies. Two different designs were fabricated and characterized. In the first design, the primary winding was Sierpinski fractal curve of the second iteration and the secondary winding was Sierpinski fractal curve of the third iteration. In the second design, both the primary and the secondary windings were of Sierpinski fractal curve of the third iteration. Commercially available copper adhesive tape was ablated by laser in order to produce Sierpinski windings. Windings were transferred to flexible magnetic substrate. High frequency parameters such as self-inductances of windings, resistances of windings and coupling coefficients were analyzed in the frequency range from 10\u00a0kHz to 1\u00a0GHz. The maximum coupling coefficient for the first design is approximately 0.45, whereas it is approximately 0.5 for the second design.", "keywords": ["0103 physical sciences", "0202 electrical engineering", " electronic engineering", " information engineering", "02 engineering and technology", "7. Clean energy", "01 natural sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.mee.2017.04.018"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Microelectronic%20Engineering", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.mee.2017.04.018", "name": "item", "description": "10.1016/j.mee.2017.04.018", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.mee.2017.04.018"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-07-01T00:00:00Z"}}, {"id": "10.1016/j.physletb.2008.06.015", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:16:55Z", "type": "Journal Article", "title": "Analytic resolution of puzzle in B\u2192K\u03c0 decays", "keywords": ["Nuclear and High Energy Physics", "0103 physical sciences", "01 natural sciences"], "contacts": [{"organization": "Kim, C.S., Oh, Sechul, Yoon, Yeo Woong,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.physletb.2008.06.015"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Physics%20Letters%20B", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.physletb.2008.06.015", "name": "item", "description": "10.1016/j.physletb.2008.06.015", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.physletb.2008.06.015"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2008-07-01T00:00:00Z"}}, {"id": "10.1016/j.powtec.2021.09.066", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:16:56Z", "type": "Journal Article", "created": "2021-09-28", "title": "Infiltration and resuspension of dilute particle suspensions in micro cavity flow", "description": "Abstract Sedimentation of particle suspensions in a channel flow into a cavity is analysed numerically using a lattice Boltzmann method coupled with a discrete element method. The work focuses on the entrapment of particles inside a confined cavity and the particle dynamics after entrapment. A close examination of the particle motions reveals three distinct dynamic behaviours: i) resuspension, ii) circulation in the central vortex and iii) deposition to the rear edge of the cavity. The effects of fluid inertia, particle density and cavity size on the infiltration and resuspension behaviours are systematically investigated. The results show that decreasing the Reynolds number, and increasing the length and depth of the cavity all lead to an increase in the trap efficiency. Three distinctive regimes with respect to the trap efficiency were then identified by deriving an empirical dimensionless trap number Tp: a resuspension regime when Tp\u00a0 \u00a02.5.", "keywords": ["0103 physical sciences", "0202 electrical engineering", " electronic engineering", " information engineering", "02 engineering and technology", "01 natural sciences"], "contacts": [{"organization": "Chao Zheng, Wenwei Liu, Wenwei Liu, Chuan-Yu Wu,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.powtec.2021.09.066"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Powder%20Technology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.powtec.2021.09.066", "name": "item", "description": "10.1016/j.powtec.2021.09.066", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.powtec.2021.09.066"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-01-01T00:00:00Z"}}, {"id": "10.1051/jphyslet:0198100420203100", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:18:11Z", "type": "Journal Article", "created": "2007-07-13", "title": "Heterodyne detection of phase-conjugate emission in an Ar discharge with a low-power c.w. laser", "description": "We report the observation of nearly degenerate four-wave mixing in Ar gas discharges at 867 nm (transition 1s3-2p7) using a low power c.w. laser. The weak phase-conjugate emission has been observed by means of a heterodyne detection technique at 30 MHz. This experimental scheme should be able to yield ultimate shot-noise limited signals, and thus could be used as a sensitive tool for phase-conjugation studies.", "keywords": ["optical phase conjugation", "heterodyne detection", "nearly degenerate four wave mixing", "demodulation", "01 natural sciences", "7. Clean energy", "[PHYS.HIST] Physics [physics]/Physics archives", "Ar gas discharges", "argon", "867 nm", "low power CW laser", "shot noise limited signals", "0103 physical sciences", "30 MHz", "discharges electric", "weak phase conjugate emission", "optical pumping"]}, "links": [{"href": "https://doi.org/10.1051/jphyslet:0198100420203100"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20de%20Physique%20Lettres", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1051/jphyslet:0198100420203100", "name": "item", "description": "10.1051/jphyslet:0198100420203100", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1051/jphyslet:0198100420203100"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1981-01-01T00:00:00Z"}}, {"id": "10.1016/j.soildyn.2019.105816", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:17:18Z", "type": "Journal Article", "created": "2019-08-19", "title": "An analytical solution to investigate the dynamic impact of a moving surface load on a shallowly-buried tunnel", "description": "In order to investigate the dynamic impact of a moving surface load on a shallow-buried tunnel, an analytical model of a tunnel embedded in an elastic half-space was proposed. The half-space and the tunnel structure were modeled as visco-elastic media and the moving surface load was simplified as a moving point load on the ground surface. Based on the fundamental solution for the isotropic elastic half-space system in Cartesian and cylindrical coordinates, the dynamic response of a shallowly-buried tunnel in a half-space generated by a moving surface load was obtained. The transformations between plane wave and cylindrical wave functions were used to facilitate the application of boundary conditions at the ground surface and the tunnel interface. It was found that the vibration of the shallowly-buried tunnel increases significantly as the load moving speed increases, and reaches a maximum value at a critical load velocity. The tunnel vibration can be greatly reduced as the buried depth increases, and can satisfy the requirement of vibration specification (ISO 04866-2010) after it exceeds the critical depth. The critical depth increases exponentially with the increase of the moving speed of the surface load. ud ud", "keywords": ["TA", "0103 physical sciences", "0211 other engineering and technologies", "02 engineering and technology", "01 natural sciences"]}, "links": [{"href": "http://wrap.warwick.ac.uk/124043/1/WRAP-analytical-solution-investigate-dynamic-impact-moving-surface-load-shallow-buried-tunnel-Geng-2019.pdf"}, {"href": "https://doi.org/10.1016/j.soildyn.2019.105816"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Dynamics%20and%20Earthquake%20Engineering", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.soildyn.2019.105816", "name": "item", "description": "10.1016/j.soildyn.2019.105816", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soildyn.2019.105816"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-11-01T00:00:00Z"}}, {"id": "10.1016/j.ymssp.2022.109478", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:17:32Z", "type": "Journal Article", "created": "2022-07-01", "title": "Topological edge states of quasiperiodic elastic metasurfaces", "description": "In this work, we investigate the dynamic behavior and the topological properties of quasiperiodic elastic metasurfaces, namely arrays of mechanical oscillators arranged over the free surface of an elastic half-space according to a quasiperiodic spatial distribution. An ad-hoc multiple scattering formulation is developed to describe the dynamic interaction between Rayleigh waves and a generic array of surface resonators. The approach allows to calculate the spectrum of natural frequencies of the quasiperiodic metasurface which reveals a fractal distribution of the frequency gaps reminiscent of the Hofstadter butterfly. These gaps have nontrivial topological properties and can host Rayleigh-like edge modes. We demonstrate that such topologically protected edge modes can be driven from one boundary to the opposite of the array by a smooth variation of the phason, a parameter which modulates the geometry of the array. Topological elastic waveguides designed on these principles provide new opportunities in surface acoustic wave engineering for vibration control, energy harvesting, and lossless signal transport, among others.", "keywords": ["Quasiperiodic structures; Rayleigh waves; Synthetic dimensions; Topological metamaterials; Edge modes", "0103 physical sciences", "FOS: Physical sciences", "Physics - Applied Physics", "Applied Physics (physics.app-ph)", "01 natural sciences"]}, "links": [{"href": "https://cris.unibo.it/bitstream/11585/897192/3/topological%2bedge%2bpost%2bprint%2b.pdf"}, {"href": "https://doi.org/10.1016/j.ymssp.2022.109478"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Mechanical%20Systems%20and%20Signal%20Processing", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.ymssp.2022.109478", "name": "item", "description": "10.1016/j.ymssp.2022.109478", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.ymssp.2022.109478"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-12-01T00:00:00Z"}}, {"id": "10.1016/j.yofte.2020.102239", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:17:32Z", "type": "Journal Article", "created": "2021-05-27", "title": "Distributed optical fiber pressure sensors", "description": "

The measurement of pressure by using distributed optical fiber sensors has represented a challenge for many years. While single-point optical fiber pressure sensors have reached a solid level of technology maturity, showing to be very good candidates in replacing conventional electrical sensors due to their numerous advantages, distributed sensors are still a matter of an intense research activity aimed at determining the most proper and robust pressure-sensitivity enhancement mechanism. This paper reviews early and recent works on distributed pressure sensors, classifying the sensors according to the sensing mechanism. For each type of mechanism, the issues and potentials are analyzed and discussed.The measurement of pressure by using distributed optical fiber sensors has represented a challenge for many years. While single-point optical fiber pressure sensors have reached a solid level of technology maturity, showing to be very good candidates in replacing conventional electrical sensors due to their numerous advantages, distributed sensors are still a matter of an intense research activity aimed at determining the most proper and robust pressure-sensitivity enhancement mechanism. This paper reviews early and recent works on distributed pressure sensors, classifying the sensors according to the sensing mechanism. For each type of mechanism, the issues and potentials are analyzed and discussed.

", "keywords": ["engrXiv|Engineering|Other Engineering", "Engineering", "engrXiv|Engineering", "Optical fiber sensor", "bepress|Engineering", "0103 physical sciences", "Distributed optical fiber pressure sensor", "bepress|Engineering|Other Engineering", "Distributed optical fiber pressure sensor; Distributed optical fiber sensor; Optical fiber sensor; Pressure measurement", "Pressure measurement", "Other Engineering", "01 natural sciences", "Distributed optical fiber sensor"]}, "links": [{"href": "https://doi.org/10.1016/j.yofte.2020.102239"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Optical%20Fiber%20Technology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.yofte.2020.102239", "name": "item", "description": "10.1016/j.yofte.2020.102239", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.yofte.2020.102239"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-09-01T00:00:00Z"}}, {"id": "10.1016/s0168-9002(04)01697-3", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:17:33Z", "type": "Journal Article", "created": "2008-01-25", "title": "Development of 2nd prototype of novel silicon Stripixel detector for PHENIX upgrade", "keywords": ["03 medical and health sciences", "0302 clinical medicine", "0103 physical sciences", "01 natural sciences"]}, "links": [{"href": "https://doi.org/10.1016/s0168-9002(04)01697-3"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Nuclear%20Instruments%20and%20Methods%20in%20Physics%20Research%20Section%20A%3A%20Accelerators%2C%20Spectrometers%2C%20Detectors%20and%20Associated%20Equipment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/s0168-9002(04)01697-3", "name": "item", "description": "10.1016/s0168-9002(04)01697-3", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/s0168-9002(04)01697-3"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-12-11T00:00:00Z"}}, {"id": "10.1021/acs.jpcc.2c04828", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:17:38Z", "type": "Journal Article", "created": "2022-08-19", "title": "Madelung Formalism for Electron Spill-Out in Nonlocal Nanoplasmonics", "description": "Current multiscale plasmonic systems pose a modeling challenge. Classical macroscopic theories fail to capture quantum effects in such systems, whereas quantum electrodynamics is impractical given the total size of the experimentally relevant systems, as the number of interactions is too large to be addressed one by one. To tackle the challenge, in this paper we propose to use the Madelung form of the hydrodynamic Drude model, in which the quantum effect electron spill-out is incorporated by describing the metal-dielectric interface using a super-Gaussian function. The results for a two-dimensional nanoplasmonic wedge are correlated to those from nonlocal full-wave numerical calculations based on a linearized hydrodynamic Drude model commonly employed in the literature, showing good qualitative agreement. Additionally, a conformal transformation perspective is provided to explain qualitatively the findings. The methodology described here may be applied to understand, both numerically and theoretically, the modular inclusions of additional quantum effects, such as electron spill-out and nonlocality, that cannot be incorporated seamlessly by using other approaches.", "keywords": ["0103 physical sciences", "02 engineering and technology", "0210 nano-technology", "01 natural sciences"], "contacts": [{"organization": "Alves, R\u00faben A., Pacheco-Pe\u00f1a, V\u00edctor, Navarro-C\u00eda, Miguel,", "roles": ["creator"]}]}, "links": [{"href": "https://pubs.acs.org/doi/pdf/10.1021/acs.jpcc.2c04828"}, {"href": "https://eprints.ncl.ac.uk/fulltext.aspx?url=300384/889C4E35-FE1D-401D-88C7-A7925000D2D6.pdf&pub_id=300384"}, {"href": "https://doi.org/10.1021/acs.jpcc.2c04828"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/The%20Journal%20of%20Physical%20Chemistry%20C", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1021/acs.jpcc.2c04828", "name": "item", "description": "10.1021/acs.jpcc.2c04828", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1021/acs.jpcc.2c04828"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-08-19T00:00:00Z"}}, {"id": "10.1029/2011ja017242", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:17:49Z", "type": "Journal Article", "created": "2012-02-02", "title": "Fluctuations in the direction of propagation of intermittent low\u2010frequency ionospheric waves", "description": "

Low\uffe2\uff80\uff90frequency (8\uffe2\uff80\uff9328 Hz), long\uffe2\uff80\uff90wavelength electrostatic waves in the ionospheric E region over northern Scandinavia are studied by using data obtained from an instrumented rocket having four probes mounted on two perpendicular booms. Two data sets are available, one for upleg and one for downleg conditions with somewhat different ionospheric parameters. The ionospheric plasma is unstable with respect to the electrostatic Farley\uffe2\uff80\uff90Buneman instability in both cases, but the DC electric field is somewhat enhanced during the downleg part of the flight. We find that the direction of wave propagation as given by the local normalized fluctuating electrostatic field vector varies randomly within an interval of aspect angles. The distribution of the directional change per time unit is determined. The waves propagate predominantly in the electrojet direction, but significant variations in directions can be found, both with respect to the magnetic field (the aspect angle) and with respect to the electrojet direction. Some of our results are in variance with related radar observations in the electrojet near the equator. Indications of significant spatial intermittency of the signal is demonstrated. Large\uffe2\uff80\uff90amplitude electrostatic fluctuations are confined to spatially localized regions and have a narrower aspect angle distribution with reduced directional fluctuations. We introduce an intermittency measure based on average excess time statistics for the record for the absolute value of the detected time\uffe2\uff80\uff90varying electric fields. We thus determine the average of time intervals spent above a prescribed amplitude threshold level. The results are compared with an analytical expression obtained for a reference nonintermittent Gaussian signal. The general analysis requires the joint probability density of signal amplitude and its time derivative to be known. The analytical models for quantifying the intermittency effects were tested by synthetic time series allowing study of the transition from non\uffe2\uff80\uff90Gaussian to Gaussian random signals.The scale of groundwater upwelling on Mars, as well as its relation to sedimentary systems, remains an ongoing debate. Several deep craters (basins) in the northern equatorial regions show compelling signs that large amounts of water once existed on Mars at a planet\uffe2\uff80\uff90wide scale. The presence of water\uffe2\uff80\uff90formed features, including fluvial Gilbert and sapping deltas fed by sapping valleys, constitute strong evidence of groundwater upwelling resulting in long term standing bodies of water inside the basins. Terrestrial field evidence shows that sapping valleys can occur in basalt bedrock and not only in unconsolidated sediments. A hypothesis that considers the elevation differences between the observed morphologies and the assumed basal groundwater level is presented and described as the \uffe2\uff80\uff9cdike\uffe2\uff80\uff90confined water\uffe2\uff80\uff9d model, already present on Earth and introduced for the first time in the Martian geological literature. Only the deepest basins considered in this study, those with bases deeper than \uffe2\uff88\uff924000\uffc2\uffa0m in elevation below the Mars datum, intercepted the water\uffe2\uff80\uff90saturated zone and exhibit evidence of groundwater fluctuations. The discovery of these groundwater discharge sites on a planet\uffe2\uff80\uff90wide scale strongly suggests a link between the putative Martian ocean and various configurations of sedimentary deposits that were formed as a result of groundwater fluctuations during the Hesperian period. This newly recognized evidence of water\uffe2\uff80\uff90formed features significantly increases the chance that biosignatures could be buried in the sediment. These deep basins (groundwater\uffe2\uff80\uff90fed lakes) will be of interest to future exploration missions as they might provide evidence of geological conditions suitable for life.

", "keywords": ["13. Climate action", "0103 physical sciences", "Gilbert Delta; Mars; groundwater; lakes; sapping valley; sedimentology.", "15. Life on land", "01 natural sciences", "Research Articles", "6. Clean water", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://ricerca.unich.it/bitstream/11564/702001/1/Salese_et_al-2019-Journal_of_Geophysical_Research__Planets-print.pdf"}, {"href": "https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2018JE005802"}, {"href": "https://doi.org/10.1029/2018je005802"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Geophysical%20Research%3A%20Planets", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1029/2018je005802", "name": "item", "description": "10.1029/2018je005802", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1029/2018je005802"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-02-01T00:00:00Z"}}, {"id": "10.1029/2021jb022454", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:17:51Z", "type": "Journal Article", "created": "2021-08-26", "title": "Asymmetry in Earthquake Interevent Time Intervals", "description": "Abstract

Here we focus on a basic statistical measure of earthquake catalogs that has not been studied before, the asymmetry of interevent time series (e.g., reflecting the tendency to have more aftershocks than spontaneous earthquakes). We define the asymmetry metric as the ratio between the number of positive interevent time increments minus negative increments and the total (positive plus negative) number of increments. Such asymmetry commonly exists in time series data for nonlinear geophysical systems like river flow which decays slowly and increases rapidly. We find that earthquake interevent time series are significantly asymmetric, where the asymmetry function exhibits a significant crossover to weak asymmetry at large lag index. We suggest that the Omori law can be associated with the large asymmetry at short time intervals below the crossover whereas overlapping aftershock sequences and the spontaneous events can be associated with a fast decay of asymmetry above the crossover. We show that the asymmetry is better reproduced by a recently modified Epidemic\uffe2\uff80\uff90Type Aftershock Sequence (ETAS) model with two triggering processes in comparison to the standard ETAS model which only has one.

", "keywords": ["Physics - Geophysics", "0103 physical sciences", "FOS: Physical sciences", "01 natural sciences", "Geophysics (physics.geo-ph)"]}, "links": [{"href": "https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2021JB022454"}, {"href": "https://doi.org/10.1029/2021jb022454"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Geophysical%20Research%3A%20Solid%20Earth", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1029/2021jb022454", "name": "item", "description": "10.1029/2021jb022454", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1029/2021jb022454"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-09-01T00:00:00Z"}}, {"id": "10.1029/2022je007190", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:17:51Z", "type": "Journal Article", "created": "2022-01-25", "title": "InSight Pressure Data Recalibration, and Its Application to the Study of Long-Term Pressure Changes on Mars", "description": "Abstract

Observations of the South Polar Residual Cap suggest a possible erosion of the cap, leading to an increase of the global mass of the atmosphere. We test this assumption by making the first comparison between Viking 1 and InSight surface pressure data, which were recorded 40\uffc2\uffa0years apart. Such a comparison also allows us to determine changes in the dynamics of the seasonal ice caps between these two periods. To do so, we first had to recalibrate the InSight pressure data because of their unexpected sensitivity to the sensor temperature. Then, we had to design a procedure to compare distant pressure measurements. We propose two surface pressure interpolation methods at the local and global scale to do the comparison. The comparison of Viking and InSight seasonal surface pressure variations does not show changes larger than \uffc2\uffb18\uffc2\uffa0Pa in the CO2 cycle. Such conclusions are supported by an analysis of Mars Science Laboratory (MSL) pressure data. Further comparisons with images of the south seasonal cap taken by the Viking 2 orbiter and MARCI camera do not display significant changes in the dynamics of this cap over a 40\uffc2\uffa0year period. Only a possible larger extension of the North Cap after the global storm of MY 34 is observed, but the physical mechanisms behind this anomaly are not well determined. Finally, the first comparison of MSL and InSight pressure data suggests a pressure deficit at Gale crater during southern summer, possibly resulting from a large presence of dust suspended within the crater.

", "keywords": ["Atmospheric sciences", "550", "Astronomy", "Atmosphere (unit)", "FOS: Mechanical engineering", "Library science", "Oceanography", "01 natural sciences", "CO2 ice", "pressure", "Mars Exploration Program", "Engineering", "Surface pressure", "Storm", "Martian Climate", "Space Suit Design and Ergonomics for EVA", "Martian Atmosphere", "Earth and Planetary Astrophysics (astro-ph.EP)", "Climatology", "Global and Planetary Change", "Geography", "Martian Surface", "Physics", "Geology", "Impact crater", "Condensed matter physics", "Anomaly (physics)", "World Wide Web", "Algorithm", "Satellite Observations", "Residual", "Physical Sciences", "Exploration and Study of Mars", "Astrophysics - Instrumentation and Methods for Astrophysics", "Research Article", "FOS: Physical sciences", "Mars", "Aerospace Engineering", "Pressure gradient", "Environmental science", "[SDU] Sciences of the Universe [physics]", "atmospheric mass", "Meteorology", "Orbiter", "0103 physical sciences", "Instrumentation and Methods for Astrophysics (astro-ph.IM)", "Formation and Evolution of the Solar System", "0105 earth and related environmental sciences", "Pressure system", "CO 2 ice", "Astronomy and Astrophysics", "FOS: Earth and related environmental sciences", "Astrobiology", "Computer science", "Physics and Astronomy", "[SDU]Sciences of the Universe [physics]", "13. Climate action", "Global Methane Emissions and Impacts", "Environmental Science", "cap sublimation", "Water on Mars", "Astrophysics - Earth and Planetary Astrophysics"]}, "links": [{"href": "https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2022JE007190"}, {"href": "https://doi.org/10.1029/2022je007190"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Geophysical%20Research%3A%20Planets", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1029/2022je007190", "name": "item", "description": "10.1029/2022je007190", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1029/2022je007190"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-01-25T00:00:00Z"}}, {"id": "10.1038/news010510-7", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:17:55Z", "type": "Journal Article", "created": "2006-09-07", "title": "The end is shy", "keywords": ["0103 physical sciences", "01 natural sciences", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Philip Ball", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1038/news010510-7"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Nature", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1038/news010510-7", "name": "item", "description": "10.1038/news010510-7", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/news010510-7"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2001-05-09T00:00:00Z"}}, {"id": "10.1038/s41377-020-0274-3", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:17:55Z", "type": "Journal Article", "created": "2020-03-11", "title": "Photonic topological fermi nodal disk in non-Hermitian magnetic plasma", "description": "Abstract

Topological physics mainly arises as a necessary link between properties of the bulk and the appearance of surface states, and has led to successful discoveries of novel topological surface states in Chern insulators, topological insulators, and topological Fermi arcs in Weyl, Dirac, and Nodal line semimetals owing to their nontrivial bulk topology. In particular, topological phases in non-Hermitian systems have attracted growing interests in recent years. In this work, we predict the emergence of the topologically stable nodal disks where the real part of the eigen frequency is degenerate between two bands in non-ideal magnetohydrodynamics plasma with collision and viscosity dissipations. Each nodal disk possesses continuously distributed topological surface charge density that integrates to unity. It is found that the lossy Fermi arcs at the interface connect to the middle of the projection of the nodal disks. We further show that the emergence, coalescence, and annihilation of the nodal disks can be controlled by plasma parameters and dissipation terms. Our findings contribute to understanding of the linear theory of bulk and surface wave dispersions of non-ideal warm magnetic plasmas from the perspective of topological physics.An invisibility cloak should completely hide an object from an observer, ideally across the visible spectrum and for all angles of incidence and polarizations of light, in three dimensions. However, until now, all such devices have been limited to either small bandwidths or have disregarded the phase of the impinging wave or worked only along specific directions. Here, we show that these seemingly fundamental restrictions can be lifted by using cloaks made of fast-light media, termed tachyonic cloaks, where the wave group velocity is larger than the speed of light in vacuum. On the basis of exact analytic calculations and full-wave causal simulations, we demonstrate three-dimensional cloaking that cannot be detected even interferometrically across the entire visible regime. Our results open the road for ultrabroadband invisibility of large objects, with direct implications for stealth and information technology, non-disturbing sensors, near-field scanning optical microscopy imaging, and superluminal propagation.Nature Physics volume 15, pages1150\u20131155(2019)", "keywords": ["Multidisciplinary", "Science & Technology", "02 Physical Sciences", "F300", "H600", "Physics", "Fluids & Plasmas", "Physics", " Multidisciplinary", "02 engineering and technology", "530", "01 natural sciences", "SEMIMETAL", "Physical Sciences", "0103 physical sciences", "0210 nano-technology", "01 Mathematical Sciences"]}, "links": [{"href": "https://nrl.northumbria.ac.uk/id/eprint/47156/1/Dongyang_Nature_Physics_2019.pdf"}, {"href": "http://www.nature.com/articles/s41567-019-0612-7.pdf"}, {"href": "https://doi.org/10.1038/s41567-019-0612-7"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Nature%20Physics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1038/s41567-019-0612-7", "name": "item", "description": "10.1038/s41567-019-0612-7", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/s41567-019-0612-7"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-08-19T00:00:00Z"}}, {"id": "10.1038/s41598-021-88984-0", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:18:01Z", "type": "Journal Article", "created": "2021-05-06", "title": "Vibration mitigation of an MDoF system subjected to stochastic loading by means of hysteretic nonlinear locally resonant metamaterials", "description": "Abstract

In this paper, we intend to mitigate absolute accelerations and displacements in the low-frequency regime of multiple-degrees-of-freedom fuel storage tanks subjected to stochastic seismic excitations. Therefore, we propose to optimize a finite locally resonant metafoundation equipped with massive resonators and fully nonlinear hysteretic devices. The optimization process takes into account the stochastic nature of seismic records in the stationary frequency domain; the records are modelled with the power spectral density S0 and modified with a Kanai\uffe2\uff80\uff93Tajimi filter. Moreover, the massive superstructure of a fuel storage tank is also considered in the optimization procedure. To optimize the nonlinear behaviour of dampers, we use a Bouc\uffe2\uff80\uff93Wen hysteretic model; the relevant nonlinear differential equations are reduced to a system of linear equations through the stochastic equivalent linearization technique. The optimized system is successively verified against natural seismic records by means of nonlinear transient time history analyses. Finally, we determine the dispersion relations for the relevant periodic metafoundation.

Impurity transport of carbon has been studied using a new method combined carbon pellet injection with high-spatial resolution bremsstrahlung measurement on the Large Helical Device [A. Iiyoshi et al., Fusion Technol.\u200817, 169 (1990)]. The carbon pellets are injected into a steady phase in neutral beam heated discharges with a standard configuration of Rax=3.6m. The particle transport coefficients (diffusion coefficient D and convective velocity V) are inferred using a diffusive/convective model. The results are compared between hydrogen and helium plasmas. As a result, it is found that the analyzed D has a constant radial profile with almost closed values of 0.2m2\u2215s in both plasmas. On the other hand, the inward V is required only at the plasma outer region (\u03c1>0.6) where the electron density gradient exits, and the inward V in helium plasmas (\u22120.4m\u2215s at \u03c1=0.8 and ne\u223c4.0\u00d71019m\u22123) is nearly half as much as that in hydrogen plasmas (\u22120.7m\u2215s). This difference of the inward V between hydrogen and helium plasmas suggests a dependence on the charge state of fuel ions predicted from neoclassical theory.

", "keywords": ["0103 physical sciences", "01 natural sciences", "7. Clean energy"]}, "links": [{"href": "https://doi.org/10.1063/1.2337790"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Physics%20of%20Plasmas", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1063/1.2337790", "name": "item", "description": "10.1063/1.2337790", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1063/1.2337790"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-09-01T00:00:00Z"}}, {"id": "10.1063/5.0022170", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:18:13Z", "type": "Journal Article", "created": "2020-10-13", "title": "Structural transition and recovery of Ge implanted \u03b2 -Ga2O3", "description": "

Ion implantation-induced effects were studied in Ge implanted \u03b2-Ga2O3 with the fluence and energy of 3\u2009\u00d7\u20091013\u2009cm\u22122/60\u2009keV, 5\u2009\u00d7\u20091013\u2009cm\u22122/100\u2009keV, and 7\u2009\u00d7\u20091013\u2009cm\u22122/200\u2009keV using analytical electron microscopy via scanning/transmission electron microscopy, electron energy loss spectroscopy, and precession electron diffraction via TopSpin. Imaging shows an isolated band of damage after Ge implantation, which extends \u223c130\u2009nm from the sample surface and corresponds to the projected range of the ions. Electron diffraction demonstrates that the entirety of the damage band is the \u03ba phase, indicating an implantation-induced phase transition from \u03b2 to \u03ba-Ga2O3. Post-implantation annealing at 1150\u2009\u00b0C for 60 s under the O2 atmosphere led to a back transformation of \u03ba to \u03b2; however, an \u223c17\u2009nm damage zone remained at the sample surface. Despite the back transformation from \u03ba to \u03b2 with annealing, O K-edge spectra show changes in the fine structure between the pristine, implanted, and implanted-annealed samples, and topspin strain analysis shows a change in strain between the two samples. These data indicate differences in the electronic/chemical structure, where the change of the oxygen environment extended beyond the implantation zone (\u223c130\u2009nm) due to the diffusion of Ge into the bulk material, which, in turn, causes a tensile strain of 0.5%. This work provides a foundation for understanding of the effects of ion implantation on defect/phase evolution in \u03b2-Ga2O3 and the related recovery mechanism, opening a window toward building a reliable device for targeted applications.

", "keywords": ["0103 physical sciences", "02 engineering and technology", "0210 nano-technology", "01 natural sciences"]}, "links": [{"href": "https://doi.org/10.1063/5.0022170"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Applied%20Physics%20Letters", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1063/5.0022170", "name": "item", "description": "10.1063/5.0022170", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1063/5.0022170"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-10-12T00:00:00Z"}}, {"id": "10.1063/5.0045937", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:18:13Z", "type": "Journal Article", "created": "2021-06-01", "title": "Advanced negative stiffness absorber for low-frequency noise insulation of panels", "description": "

The sound transmission loss of conventional means of passive acoustic treatment in the low-frequency range is governed by two physical mechanisms: the inertia, as stated by the mass density law, and the local resonances of the structure. Since usual partitions are flexible and lightweight, their acoustic performance is poor, especially below 300\uffc2\uffa0Hz. Although conventional acoustic meta-materials can offer excellent acoustic properties, they also perform poorly in this range. Therefore, novel meta-structures are required to overcome these limitations. This proposed novel absorber optimally combines the concepts of KDamper (KD) and inertial amplification mechanisms (IAMs). The novelty of the KD-IAM absorber lies in the generation of equally deep but significantly wider attenuation bands surpassing the mass density law while requiring only a small fraction of additional mass. The absorber is implemented and demonstrated as an elastic mount for retrofitting existing panels, essentially manipulating the resonant response of the structure by controlling the panel\uffe2\uff80\uff99s boundary conditions. It is also shown that increasing the panel\uffe2\uff80\uff99s rigidity and, consequently, its fundamental eigenfrequency utilizing stiffeners results in further improvements in the bandwidth and depth of noise attenuation. A wide and deep attenuation band is demonstrated in the resonance region below 120\uffc2\uffa0Hz, up to 13 dB above the reference level. An indicative design and implementation for a case study are presented. It is further demonstrated that the same concept can be utilized for the formation of meta-structures by periodic repetition of KD-IAM unit cells, leading to significant additional attenuation of the lowest vibration modes.

", "keywords": ["Physics", "QC1-999", "0103 physical sciences", "7. Clean energy", "01 natural sciences"]}, "links": [{"href": "https://pubs.aip.org/aip/adv/article-pdf/doi/10.1063/5.0045937/12814277/065003_1_online.pdf"}, {"href": "https://doi.org/10.1063/5.0045937"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/AIP%20Advances", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1063/5.0045937", "name": "item", "description": "10.1063/5.0045937", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1063/5.0045937"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-06-01T00:00:00Z"}}, {"id": "10.1063/5.0096630", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:18:13Z", "type": "Journal Article", "created": "2022-08-12", "title": "Single and coupled Helmholtz resonators for low frequency sound manipulation", "description": "

In this work, we use the finite element method to study the acoustic properties of single and coupled Helmholtz resonators (HRs). Each HR consists of a sphere drilled with one or several small openings. For a single HR, we show that the total pressure computed at the opening's edge as a function of frequency reveals the presence of a local dip in addition to the well-known resonance peak. In the case of coupled resonators, we highlight two resonance peaks at low frequencies, arising from excitation of a monopolar breathing mode, for which the twin resonators are in phase (S-peak), and a dipolar mode, where the two spheres resonate out of phase (AS-peak). In the near field, we study the influence of the number of apertures, the distance between spheres and their orientation on the frequencies, and quality factors of the two resonances. In the far field, we show that the propagation of the scattered wave is quasi-isotropic for the S-peak, while it leads to a dipolar-type pressure distribution for the AS-peak, with a directionality depending on the relative orientation of the openings in adjacent HRs. By increasing the number of coupled HRs from two to four units, we investigate the effect of additional mode coupling. Accordingly, the present study aims to manipulate the sound at targeted frequencies, by varying the distance or orientation between twin resonators, and to discuss the effect of dissipation. The demonstration of the coupling between sub-wavelength units opens the way to multi-frequency functionalities of acoustic metasurfaces.

", "keywords": ["Acoustic metamaterial", "[SPI] Engineering Sciences [physics]", "Helmholtz resonator", "Wave mechanics", "0103 physical sciences", "Acoustic damping", "Acoustical properties", "Finite-element analysis", "02 engineering and technology", "Coupled resonators", "Isobars", "0210 nano-technology", "01 natural sciences"]}, "links": [{"href": "https://doi.org/10.1063/5.0096630"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Applied%20Physics", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1063/5.0096630", "name": "item", "description": "10.1063/5.0096630", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1063/5.0096630"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-08-12T00:00:00Z"}}, {"id": "10.1089/ast.2019.2132", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:18:33Z", "type": "Journal Article", "created": "2020-05-29", "title": "Fluvial Regimes, Morphometry, and Age of Jezero Crater Paleolake Inlet Valleys and Their Exobiological Significance for the 2020 Rover Mission Landing Site", "description": "Jezero crater has been selected as the landing site for the Mars 2020 Perseverance rover, because it contains a paleolake with two fan-deltas, inlet and outlet valleys. Using the data from the High Resolution Stereo Camera (HRSC) and the High Resolution Imaging Science Experiment (HiRISE), we conducted a quantitative geomorphological study of the inlet valleys of the Jezero paleolake. Results show that the strongest erosion is related to a network of deep valleys that cut into the highland bedrock well upstream of the Jezero crater and likely formed before the formation of the regional olivine-rich unit. In contrast, the lower sections of valleys display poor bedrock erosion and a lack of tributaries but are characterized by the presence of pristine landforms interpreted as fluvial bars from preserved channels, the discharge rates of which have been estimated at 103-104 m3s-1. The valleys' lower sections postdate the olivine-rich unit, are linked directly to the fan-deltas, and are thus formed in an energetic, late stage of activity. Although a Late Noachian age for the fan-deltas' formation is not excluded based on crosscutting relationships and crater counts, this indicates evidence of a Hesperian age with significant implications for exobiology.", "keywords": ["Geologic Sediments", "550", "landing site", "Extraterrestrial Environment", "Datasets as Topic", "Magnesium Compounds", "Mars", "01 natural sciences", "HRSC", "HiRISE", "[SDU.STU.PL]Sciences of the Universe [physics]/Earth Sciences/Planetology", "Taverne", "Exobiology", "0103 physical sciences", "Perseverance rover", "Off-Road Motor Vehicles", "Spacecraft", "fluvial landforms", "Fluvial deposits", " Sedimentology", " Landing site", " Mars", " Perseverance rover", "", "Landing site", "0105 earth and related environmental sciences", "Silicates", "500", "15. Life on land", "Agricultural and Biological Sciences (miscellaneous)", "Fluvial landforms", "Lakes", "Space and Planetary Science", "13. Climate action", "[SDU.STU.PL] Sciences of the Universe [physics]/Earth Sciences/Planetology", "Iron Compounds"]}, "links": [{"href": "https://www.liebertpub.com/doi/pdf/10.1089/ast.2019.2132"}, {"href": "https://doi.org/10.1089/ast.2019.2132"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Astrobiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1089/ast.2019.2132", "name": "item", "description": "10.1089/ast.2019.2132", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1089/ast.2019.2132"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-08-01T00:00:00Z"}}, {"id": "10.1093/mnras/staa3201", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-02T16:18:36Z", "type": "Journal Article", "created": "2020-10-16", "title": "Quantifying the structure of strong gravitational lens potentials with uncertainty-aware deep neural networks", "description": "ABSTRACT

Gravitational lensing is a powerful tool for constraining substructure in the mass distribution of galaxies, be it from the presence of dark matter sub-haloes or due to physical mechanisms affecting the baryons throughout galaxy evolution. Such substructure is hard to model and is either ignored by traditional, smooth modelling, approaches, or treated as well-localized massive perturbers. In this work, we propose a deep learning approach to quantify the statistical properties of such perturbations directly from images, where only the extended lensed source features within a mask are considered, without the need of any lens modelling. Our training data consist of mock lensed images assuming perturbing Gaussian Random Fields permeating the smooth overall lens potential, and, for the first time, using images of real galaxies as the lensed source. We employ a novel deep neural network that can handle arbitrary uncertainty intervals associated with the training data set labels as input, provides probability distributions as output, and adopts a composite loss function. The method succeeds not only in accurately estimating the actual parameter values, but also reduces the predicted confidence intervals by 10\uffc2\uffa0per\uffe2\uff80\uff89cent in an unsupervised manner, i.e. without having access to the actual ground truth values. Our results are invariant to the inherent degeneracy between mass perturbations in the lens and complex brightness profiles for the source. Hence, we can quantitatively and robustly quantify the smoothness of the mass density of thousands of lenses, including confidence intervals, and provide a consistent ranking for follow-up science.

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