344 research outputs found
Multidisciplinary investigation of the natural and anthropogenic ground movements in the Po Plain (Northern Italy) using geological and satellite data
No full textL'abstract è presente nell'allegato / the abstract is in the attachmen
Fluid Production Dataset for the Assessment of the Anthropogenic Subsidence in the Po Plain Area (Northern Italy)
No full textFluid produced/injected volumes from/into underground natural formations and their spatial allocation play a key role in addressing the superposition of anthropogenic subsidence effects, but the definition of coherent datasets is usually very challenging. In this paper, the creation of a gas and water production dataset for the Po Plain area in northern Italy is presented, focusing on the Emilia-Romagna region (an industrialized, highly-populated area characterized by rapid subsidence). The produced volumes and their spatial/temporal allocation are gathered from different sources, analyzed, and organized via dedicated georeferenced maps. The geological framework of the Po Plain is delineated, with attention to the superficial aquifers. Reference ranges of petrophysical and pseudo-elastic parameters are reported for both aquifer and reservoir formations. Water extractions from the superficial unconsolidated sediments are widespread, both in space and time; instead, primary gas production and underground storage of natural gas, involving deeper formations, are spatially and temporally well constrained. Drastic increases in water production and high concentrations of gas production temporally coincided between the 1950s and 1970s. The ‘hotspots’ of the strongest superposition are recognized in Piacenza, Ferrara, Bologna, and Ravenna provinces. Qualitative and quantitative information represent a reference source for both Oil and Gas Societies and Regional/National authorities in addressing the subsidence analysis to plan the field production life and predict the environmental consequences
Coupling approach in shallow, unconfined aquifers in the Po Plain area: A preliminary study for future ground monitoring purposes.
No full textThe use of the coupling approach in analyzing the interaction between the flow field and the stress field in shallow, unconsolidated aquifers allows a better description of the involved phenomena. We perform our study on an area in the Po Plain (northern Italy) in the province of Bologna in Emilia-Romagna based on intended future studies on ground movements due to the superposition of shallow water production with deep underground gas storage.
The static geological model of the alluvial sediments, locally exceeding 500 meters of thickness, is developed via a stochastic approach in order to manage the high degree of uncertainty in the system spatial continuity and heterogeneities. Corresponding water production data and piezometric measurements are collected for simulating the dynamic behavior of the shallow aquifer. The high uncertainty in water production data are managed considering a maximum and minimum scenarios on the basis of punctual well measurements and regional trend information. Correlation law between petrophysical parameters and deformation variables are derived for technical literature. The coupling technique is then applied and some sensitivity analysis are developed to assess the effects of the correlation laws. The results are finally compared with the output from the uncoupled techniques
Cluster analysis of InSAR data for the investigation of groundwater production effects
No full textInSAR time series analysis is a powerful tool used in remote sensing to monitor ground deformation over time. In recent years, advanced techniques and algorithms have been developed for the application of InSAR in a more accurate manner along with the continuous availability of new satellite data. In this research, we propose the use of a developed clustering algorithm for analyzing InSAR time-series data and face the superposition of effects inducing ground movements. The investigated area is in the Po Plain in northern Italy and it is characterized by massive groundwater production for various purposes and it also hosts an underground gas storage system. The focus of the research is the identification and the quantification of the seasonal and trend behavior related to aquifer exploitation. We selected the additive approach for decomposing the time-series obtained from InSAR and applied the k-means clustering algorithm (Morissette and Chartier, 2013) over the seasonal and trend components. The results showed different seasonal behaviors attributed to areas with varying water production, rainfall precipitation and structural geology. The trend was analyzed and compared to the existing literature proving the reliability of this method.
The quantification of ground deformation due to each main source is of paramount importance for a reliable prevision of each phenomenon via the calibration of dedicated numerical models. The results of the research will be used to discriminate and quantify the effects of water
production from the effects of gas storage operations and they will allow the calibration of dedicated 3D numerical fluid-flow and stress-strains models
Investigation of ground movements induced by water withdrawal via cluster-analysis applied to InSAR data
No full textRemote sensing methods (InSAR) provide advanced methodologies for detecting and precisely measuring ground deformations (GD) of anthropogenic origin like trend and seasonal aquifer-system response to exploitation and recharge.
We developed an algorithm that relies on the decomposition and clustering analysis of time series of GD to characterize the deformative behavior over a specific area due to anthropogenic activities related to water production. The vertical movements for monitoring points (MP) derived from InSAR measurements were decomposed into their seasonal (S) and trend (T) components. S is suitable for analyzing seasonal behavior of GD induced by oscillatory phenomena like aquifer withdrawal for agricultural purposes and seasonal rainfall recharges. T is more useful for measuring the impact of anthropogenic activities with a more linear and continuous behavior in time. Subsequently, the cluster analysis groups for all the MPs, which are grouped according to their similarities in S or T components, allows to define and quantify the deformative behavior of the system and the areal extent of the phenomenon.
We applied this method to different areas in Emilia-Romagna in northern Italy characterized by strong superposition between groundwater production and other anthropogenic activities such as gas /storage. We focused on identifying different behaviors of the time series related to the different activities. We compared the results form cluster analysis with ancillary info such as: water well positions, amount of fluid production, rainfall precipitation, the structural geology and the land use maps of the studied areas comparing the different seasonal behaviors related to those attributes. The analysis of the trend and seasonal component allowed us to verify our results and the reliability of this method with data from literature.
The results of this work enable us to quantify and isolate the effects of water production on GD from other anthropogenic effects
Louis-Ferdinand Celine and the Magic of Words
No full textThe article is related the idea of the so-called "aesthetic revolution in language" by Celine. The author focuses on the peculiaritiees Celine's new language, namely the fusion of conversational and literary elements, the introduction of argot and neologisms, the special meaning of rhythm, intonation and speech melody which have an amportant impact. The writer constructs his phrases in accordance with the image of the hostile and aggressive world. Applying the complex method of research (comparative-historical, biographical, hermeneutic and intertextual), the author discloses the uniqueness of Celine's language. Celine destroyed the monopoly of the standard literary language conclusively. Moreover, Celine created a "new syntax" - "a language within language" - that helps the reader hear and see the world without either explaning anything or imposing any interpretation
Louis-Ferdinand Celine and the Magic of Words
No full textThe article is related the idea of the so-called "aesthetic revolution in language" by Celine. The author focuses on the peculiaritiees Celine's new language, namely the fusion of conversational and literary elements, the introduction of argot and neologisms, the special meaning of rhythm, intonation and speech melody which have an amportant impact. The writer constructs his phrases in accordance with the image of the hostile and aggressive world. Applying the complex method of research (comparative-historical, biographical, hermeneutic and intertextual), the author discloses the uniqueness of Celine's language. Celine destroyed the monopoly of the standard literary language conclusively. Moreover, Celine created a "new syntax" - "a language within language" - that helps the reader hear and see the world without either explaning anything or imposing any interpretation
Truth and untruth: Louis-Ferdinand Céline's Voyage au bout de la nuit and the memory of the Great War 1914-1918
No full textThis thesis examines Louis-Ferdinand Celine’s 1932 novel Voyage au bout de la nuit as a rewriting of his memory of the Great War 1914-1918. It seeks to resolve the truth problematic posed by the inversion in Voyage au bout de la nuit of Celine’s experience in the war, primarily the transition from Celine’s heroism in the war to his fictional self-portrait as the coward, Bardamu. It seeks to clarify the role and value of Celine’s fictional witness to war by placing the novel in a broadly developed context of the war and its commemoration. A major premise of this thesis is that Celine was traumatised by the war and that his rewriting of his war experience is informed by his need to break free of traumatised memory through the creation of a new, literary narrative of his personal past. By drawing on the literature of trauma and survival, as well as on studies of the Great War and other wars, this thesis succeeds in establishing that Celine was, indeed, traumatised by his war experience and succeeds in showing the many ways in which this trauma shapes Voyage. It also provides a thorough account of how Voyage as literary artefact engages with the memory of the Great War and how it functions as witness to war and the consequence of war. It brings us ultimately towards the dynamic of accusation which lies at the heart of Celine’s traumatic memory of the Great War and which underlies its keynotes of irony, satire and invective. This thesis is multi-disciplinary in its approach, drawing on historical, biographical, psychological, and literary studies. It provides an important contribution to Celine studies, but also to studies of the Great War, the memory and literature of the Great War and to studies of twentieth-century trauma, memory and identity
Trophoblast Invasion und Migration: der Effekt von Histamin auf ein 3D in vitro Embryo-Implantationsmodel
No full textAuthor Celine KapperAbweichender Titel laut Übersetzung der Verfasserin/des VerfassersMasterarbeit Johannes Kepler Universität Linz 2025Arbeit nach Ablauf der Sperre auf den öffentlichen PCs in den Bibliotheken der JKU+Medizin abrufba
Trophoblast Invasion und Migration: der Effekt von Histamin auf ein 3D in vitro Embryo-Implantationsmodel
No full textAuthor Celine KapperAbweichender Titel laut Übersetzung der Verfasserin/des VerfassersMasterarbeit Johannes Kepler Universität Linz 2025Arbeit nach Ablauf der Sperre auf den öffentlichen PCs in den Bibliotheken der JKU+Medizin abrufba
- …
