bluuebunny/crossref_metadata_2025_split huggingface dataset:
Development of a 3D Geotechnical Model and Discrete Fracture Network Approach for a Review of Dam Footing Stability
Authors: Weir F. M. , Brehaut R. , Mostyn G. 
Published: January 2023

Abstract
This paper presents the development of a three-dimensional (3D) geotechnical model for an existing water dam in Queensland, Australia. The model incorporated data from historic construction records, recent investigation data as well as previously developed two-dimensional cross section interpretations and geological mapping records. The 3D model provided the project team and other stakeholders the ability to interrogate the ground model to an unprecedented level of detail.
The geotechnical model development was complimented by an in-depth rock mechanics assessment to investigate kinematically feasible sliding mechanisms beneath the dam spillway and abutments. This package of work included creation of a discrete fracture network model. The DFN modelling in this study was undertaken in two stages, with an initial model built to be representative of sub-horizontal fractures (with a dip of &lt;15°), followed by a refined model, built to be representative of all fractures at the site.
The paper presents the input parameters, derivation of these parameters along with the model generation process are presented for both stages. The modelling was undertaken for both rock mass visualization and sliced on two cross-sections for input into 2D Finite Element analyses. This was particularly targeted at understanding intact rock forming bridges between laterally persistent defects within the volcanic host rock that were previously identified as a key risk to dam stability in the event of an overtopping event.
A Workflow for Generation of High Quality Meshes for Modelling Near-Field THMC Processes in Porous and Fractured Media
Authors: Mosley K. , Hartley L. , Turnbull R. , Libby S. , Cottrell M. , Bym T. , Josephson N. , Gable C. W. , Hyman J. D. , Makedonska N. , Livingston D. 
Published: January 2023

Abstract
Numerical modelling of nuclear waste repositories frequently requires the representation of complex geological features and engineering in a computational mesh. Crystalline host rocks present particular challenges because simulation of THMC processes often necessitates the creation of both volumetric meshes (continuous porous media) and discrete fracture networks (fractured media), or hybrid meshes in which separate parts of the domain are represented as different media.
Here, we present near-field THMC simulations enabled by new meshing workflows for generating unstructured CPM, DFN and hybrid meshes around an illustrative facility for spent nuclear fuel. We demonstrate how the LaGriT meshing toolkit, together with DFN meshing algorithms from the combination of FracMan and dfnWorks, can be applied to create a flexible set of medium representations. In the case study, the resulting meshes represent backfilled repository tunnels using surface-conforming 3D tetrahedral cells, whilst the fractured rock sections of the model are represented by either a DFN or CPM mesh depending on the physics to be simulated.
Using the developed meshes, example THMC simulations are undertaken in PFLOTRAN and FracMan. The results demonstrate how the integrated workflow can be used to create high quality, realistic model inputs which result in improved convergence and accuracy in numerical simulations.
Processing and Conversion of Raw Point-Cloud Laser Measurements and Auxiliary Data of Rough-Surfaced Fractures To Generate Corresponding Fracture Aperture Fields
Authors: Stock B. , Frampton A. 
Published: January 2023

Abstract
Understanding subsurface flow mechanisms in fractured rock is essential for subsurface infrastructure industries and geoscientific research. It is common to explore this using numerical modelling, however recently there are studies now replicating fractures by making use of 3D printing technologies. In order to produce a fracture replica, data from a real rock surface must be provided and an aperture field obtained. This data can be used for both 3D printing and numerical modelling and has the advantage of providing a direct correspondence between the 3D printed and numerical aperture field. In this study scans of the upper and lower surface of four 100 mm by 70 mm fracture cases were provided as point-cloud data. Pressure film data was also provided showing the pressure distribution across the aperture field at 5MPa of normal load.
The scanning method results in an irregular mesh when looking for instance on the XY coordinate plane. This means the nodes of the upper and lower surface of the same fracture will not coincide. Due to this, the surface data is linearly interpolated onto a regular grid with a resolution of 0.1mm in order to easily obtain the aperture field. Issues arise from the vertical referencing of the upper and lower surface scans, resulting in unrealistic aperture field distributions. To correct this the lower surface is translated relative to the upper surface to improve alignment and reduce inaccurate negative values. However, this was insufficient to fully correct the aperture field, so the pressure film is used as a reference to vertically shift the upper surface until a visual best fit aperture field distribution is achieved. Once the aperture is obtained it can be used for numerical modelling and 3D printing. This study provides an example methodology for converting raw point-cloud data to a meaningful data set for representation of fracture apertures, as well as highlighting limitations and factors to consider during the process.
3D Fracture Modeling: Application on Tight Oil Reservoir
Authors: Djezzar Sofiane , Boualam Aldjia , Ouadi Habib , Laalam Aimen , Mouedden Nadia , Merzoug Ahmed , Chemmakh Abderraouf 
Published: January 2023

Abstract
The Oued Mya Basin is one of the most oil-productive basins in Algeria. The wells’ productivity in these low permeability Ordovician reservoirs is attributed to the interconnected fracture networks. The faults and fractures characterization were carried out on two approaches. The first approach consists of the analysis of faults picked from 3D seismic volume and the second comprises the analysis of the sub seismic faults digitized from different seismic attributes and wellbore imagery analysis. Two trends of faults are highlighted and separated by a syncline oriented in the same direction. This architecture seems to be the result of several tectonic events, with a complex fault system-oriented NNE-SSW and interspersed with another of the sub-orthogonal fault system. The two orthogonal fault systems compartmentalize the region into horsts and grabens. The different fracture sets are connected and can contribute significantly to the productivity of this reservoir. The SHmax is homogeneous in the region, it is oriented NW-SE with a reorientation NE-SW to NNE-SSW at the wells of Berkaoui field and Guellala field, indicating diagram concordant with a transcendent dextral strike-slip fault. Wells showing the presence of trace of hydrocarbons can be stimulated by targeting fracture parallel to the maximum horizontal stress to improve the reservoir fluid flow.
Quantifying Connectivity of Fracture Networks: A Lacunarity Approach
Authors: Roy Ankur , Lahiri Sivaji 
Published: January 2023

Abstract
Connectivity estimated by simply considering the relative number of nodes in fracture networks, i.e., cross-cutting (X), abutting (Y), and isolated (I), without regard to their spatial distributions, is often not a unique identifier of fracture geometry. This research proposes a modified, lacunarity based estimate of connectivity which considers both the spatial distribution of such nodes in a network and also their abundance. We compare three pairs of natural fracture maps from different sources, each pair with the same connectivity but very different visual appearances. A study of the flow properties of these maps using a streamline simulator and invoking the fracture continuum model showed that pairs of maps with same connectivity but different visual appearances yield distinct recovery curves and time-of-flight (TOF) plots. A MATLAB toolbox, FracPaQ, is used to identify and spatially map the three different X, Y and I-nodes in fracture networks. The spatial clustering of nodes that facilitate conductivity (X, Y) and those that hinder flow (I), are calculated separately by implementing a log-transformed lacunarity summed over a range of scales as: &lt;LXY&gt; and &lt;LI&gt; respectively. The values are then used for generating a multiplier, κ = &lt;LXY&gt; / &lt;LI&gt;, which is incorporated into a new connectivity index, L-connectivity. The results show that pairs of fracture maps that have the same apparent connectivity, but with differences in visual appearances and hence, flow properties, can be distinguished based on this new lacunarity-based connectivity index. This parameter may therefore, prove to be a unique identifier of the connectivity of fracture networks. L-connectivity may be potentially utilized for estimating the network connectivity and, as a first pass for evaluating fracture network geometry by modelers and engineers who deal in fractured petroleum reservoirs and aquifers.
Natural and Hydraulic Fracture Interaction: A Proxy for Tracking Flow Trajectory
Authors: Sarmiento S. , Makedonska N. 
Published: January 2023

Abstract
In this work, dfnWorks simulation tool is used to track the efficiency of hydraulic fracture stages across a hypothetical multi-stage hydraulic fracture well connected to a natural fracture network under low porosity and permeability typical of unconventional shale reservoirs. The evaluation of the influence of hydraulic fractures on the fluid flow trajectories and velocities in a natural fractured reservoir was weighted by the modeled connectivity with the natural fractures (DFN) and by the use of hydraulic fracture stage pressures. Under low natural fracture intensities is connectivity the factor that matters more in fluid flow towards the well; conversely, under high fracture intensities and the resulting high connectivity, fluid flows towards the well is more influenced by low-pressure stages or stages with highest pressure gradient between the boundary faces and the horizontal well.
Using DFN Logic in Open Pit Stability Analysis Applications for Calibration and Predictive Calculation Including Defined Persistence Discontinuities
Authors: Montiel E. , Blondel M. , Soberanis J. , E Rubio E. , Hormazabal E. 
Published: January 2023

Abstract
In open pit stability analyses, numerical modeling helps to evaluate failure modes related to the interaction between discontinuities and the rock mass. In particular, numerical models that integrate discrete fracture networks (DFNs) are a relevant tool for detecting slope failure mechanisms, especially when failure involves slippage along geological structures. Traditionally, the focus of such analyses is stochastic in nature. However, a deterministic approach to open pit modeling can be adopted using DFN as a discontinuity integration logic with defined persistence based on field mapping.
This article presents a stability analysis of a "deterministic" type approach which implements the DFN logic incorporated in discrete element software, which would allow for the representation of discontinuities of variable persistence. The methodology has been validated through its application in numerical open pit models aimed at calibrating instabilities and evaluating predictive design conditions, whose results have been satisfactory, and representative of the instability conditions observed in situ.
Creating Simulation Model Permeability in Fractured Impermeable Rocks Using DFN Modeling at the Decatur, Illinois CCS Site
Authors: Williams-Stroud S. C. , Lee S. , Zaluski W. 
Published: January 2023

Abstract
Seismicity induced by fluid injection in the deep subsurface often occurs in low-permeability basement rocks. At the Illinois Basin – Decatur Project, the target storage reservoir a high-porosity and permeability sedimentary unit, and more than 90% of the seismic events occur in the very low permeability grano-rhyolite rocks underlying the Mt. Simon sandstone reservoir indicating that perturbations in fluid pressure, reservoir stress, or both were transmitted to the underlying basement rocks. Geological models built for reservoir simulation are well constrained by logs, spinner survey, and pressure data, except for flow into and through the igneous basement, and additional model permeability was required to achieve good history match. Image logs acquired through the top of the basement indicate that it is highly fractured. A discrete fracture network model was constrained by the induced seismicity and the fracture observations from the wellbore to develop a basement permeability model. The workflow resulted in a realistic characterization of fracture distribution in the basement that led to an excellent match of reservoir behavior.
Conditioning of DFN Models To Fracture Trace Maps and Borehole Intersections
Authors: Bym T. , Turnbull R. , Hartley L. 
Published: January 2023

Abstract
A new method for conditioning DFN models to field data such as outcrops, tunnel traces and borehole fracture logs is presented. The method generates DFNs that honor local observations whilst maintaining the specified fracture size and intensity statistics.
This conditioning workflow has two main steps. First, an unconditioned DFN is generated and all fractures intersecting specified sampling objects such as boreholes and rock faces are removed. The second step is to replace the removed fractures with conditioned fractures. The generation of conditioned fractures starts by defining a probability field of all potential fracture centers that would fit the observed data whilst honoring the limits of the fracture size model. Next, the potential fracture center points are weighted according to the underlying fracture size distribution. Conditioned fractures are then placed at a center point stochastically sampled according to these weights. This process is repeated until all observed data have an associated fracture.
This conditioning algorithm can match multiple observations with a single fracture or include negative constraints for preventing modelled fractures from intersecting sampling objects at locations where no traces are observed. In addition, conditioning is possible with grown DFN models which generate fractures dynamically, allowing for interactions such as terminations to occur. This functionality means the conditioning method provides a powerful tool for generating more geologically-realistic DFNs that can capture complex fracture patterns and match observed field data.
استراتيجيات البعثات التبشيرية في إفريقيا جنوب الصحراء الكبرى في الفترة الاستعمارية
Authors: كومة عادل 
Published: January 2023

إبان الحقبة الاستعمارية، حقق العمل الإنجيلي نجاحًا كبيرًا في إفريقيا جنوب الصحراء. لقد تبنت الكنيسة التبشيرية استراتيجية بارعة. العمل التبشيري في الكاميرون خلال الفترة الاستعمارية يعدُّ مثالًا مثيرًا للاهتمام لفهم للاستراتيجية المعتمدة في القارة السوداء للتبشير. ونناقش في هذ المقال الأسلوب الذي اتبعه المرسلون في هذه الفترة لإنشاء قرى مسيحية بالكامل. إنها طريقة للتسلل والسيطرة تهم مناطق مختلفة. أولاً، في غياب المرافق الطبية، فقد مكن تقديم الخدمات الصحية في الأدْيِرَة المبشرين من كسب ثقة السكان. وفي وقت لاحق، أنشئت مدارس عامة لتوفير التعليم الجماعي مع الرفع من الغلاف الزمني المخصص للتعليم الديني في المناهج الدراسية. بالإضافة إلى التفكير في تكوين أسر مسيحية صرفة من طرف هؤلاء المتعلمين تتماشى وفقا لتعلمهم الديني. بدأ المبشرون بتزويج الشباب من الشابات الذين تخرجوا من دور التكوين الديني ليكون لديهم عائلات مسيحية، حيث إنَّ نتائج هذه الخطة بدت ناجعة للغاية.
HERMENEUTICS PROMOTES PERSON-CENTERED MENTAL HEALTH IN PANDEMIC TIMES
Authors: T. H. Wong Michael 
Published: January 2023

Background: COVID 19 affects not only patients’ physical health but also mental well-being.
Objective: To explore how hermeneutics, i.e., the theory and practice of interpretation, promotes person-centered mental health during the COVID-19 pandemic.
Method: An excerpt of a dialogue between a patient with depression and his psychiatrist was used to illustrate how hermeneutics promotes person-centered mental health.
Results: The case study, reviewed through the perspective of hermeneutics, showed that the patient needs a personal narrative to voice his COVID-19-related physical worries as well as associated psychosocial difficulties, mental health distress, and spiritual concerns.
Discussion: A multi-layered personal narrative, informed by hermeneutics, ensures mental health needs are not overlooked/neglected in individuals affectedby COVID-19.
Conclusion: Hermeneutics, when properly and clinically applied, promotes person-centered mental health in pandemic times.
L’Holocauste comme identité
Authors: Berges Maxime 
Published: January 2023

Cet article est un compte-rendu du livre : Aleida Assmann, Das neue Unbehagen an der Erinnerungskultur. Eine Intervention, Munich, C.H. Beck Verlag, 2020, 263 p., EAN 9783406748943 [Le Nouveau Malaise face à la culture du souvenir, 3e éd. revue et augmentée].
Maaike Meijer, « Lire en lesbienne. Un cadre d’interprétation idiosyncrasique prend la place des attributs textuels objectifs »
Authors: Delodder Maxim 
Published: January 2023

Cet article est un compte-rendu du livre : Maaike Meijer, « Lezen als een lesbo. Een eigenzinnig interpretatiekader neemt de plaats in van objectieve teksteigenschappen », Lover, vol. 88, no 4, 1988, p. 222‑230.
Remise en question du principe universel d’égalité des sexes en contexte sud-coréen
Authors: Gilbert Marion 
Published: January 2023

Cet article est un compte-rendu du livre : JUNG Hee-jin [CHŎNG Hŭijin], « Yangsŏng p’yŏngdŭng-e pandaehanda » [« Contre l’égalité des sexes »], dans JUNG Hee-jin [CHŎNG Hŭijin], KWŎN KIM Hyŏnyŏng, Ruin, RYU Chinhŭi, & HAN Chae-yoon [HAN CH’aeyun] (dir.), Yangsŏng p’yŏngdŭng-e pandaehanda [Contre l’égalité des sexes], Séoul, Gyoyangin, 2017, p. 21-56.
Élargir la narratologie. Études de genre analyse littéraire en Allemagne
Authors: Kern Matthias 
Published: January 2023

Cet article est un compte-rendu du livre : Vera Nünning, Ansgar Nünning, « ‚Gender‘-orientierte Erzähltextanalyse als Modell für die Schnittstelle von Narratologie und intersektioneller Forschung? Wissenschaftsgeschichtliche Entwicklung, Schlüsselkonzepte und Anwendungsperspektiven » [« L’analyse narratologique centrée sur le “genre” — un modèle pour les échanges entre la narratologie et la recherche intersectionnelle ? Développement au cours de l’histoire des recherches, concepts-clés et perspectives d’application »], in Christian Klein, Falko Schnicke (éd.) : Intersektionalität und Narratologie: Methoden – Konzepte – Analysen, Trèves, Wissenschaftlicher Verlag Trier 2014, p. 33‑60.
Versions d’un tombeau
Authors: Artous-Bouvet Guillaume 
Published: January 2023

Resume :Après avoir tenté de distinguer trois versions du tombeau critique (sous les noms d’Histoire, d’Essence, et d’Agonie), cet article cherche à poser la question suivante : et si le tombeau critique n’était pas seulement un genre critique parmi d’autres, mais la conscience même de la critique comme genre, dès lors que toute critique littéraire s’écrit dans une extériorité, souvent endeuillée, à son objet ? C’est l’occasion de relire un certain nombre de textes critiques, depuis L’Esthétique de Hegel, jusqu’aux élaborations derridiennes, en passant par les propositions de Compagnon, Todorov, W. Marx et Blanchot.
Questions de lecture, entre expérience et appropriations
Authors: Macé Marielle 
Published: January 2023

Resume :Une perspective esthétique et pragmatique a pris la relève de l’approche sémiotique qui avait jusqu’ici prévalu dans les façons de réfléchir à la lecture littéraire ; on ne s’intéresse plus forcément à propos des livres à des textes à déchiffrer, mais à des objets esthétiques, inducteurs d’usages, de gestes, de conduites – conduites mentales, morales, sociales. Qu’en est-il de la place de l’interprétation dans ces nouvelles manières de comprendre la lecture ? Cet article invite à ne jamais séparer les conduites d’appropriation ou de refiguration d’un engagement herméneutique et d’une attention à la précision des formes du dire (phrases, dispositifs, pris un à un, dans leur singularité, leur altérité). Il ne s’agit pas de réopposer l’interprétation à l’usage, mais d’affirmer que c’est dans l’acquiescement à la tâche interprétative que l’on peut libérer dans les textes des capacités d’actions et des idées de vie.
Bergson illisible
Authors: Clément Bruno 
Published: January 2023

Resume :« Ce serait se tromper étrangement, dit Bergson, que de prendre pour un élément constitutif de la doctrine ce qui n’en fut que le moyen d’expression ». Cette étude se propose de mesurer toutes les conséquences de cette proposition paradoxale. S’il fallait la prendre au pied de la lettre, si l’expression conceptuelle était en effet, comme Bergson le dit aussi, « nécessairement symbolique », ce n’est pas seulement la lecture du texte dont elle est tissée qui s’en trouverait affectée, c’est l’écriture de ce texte, et l’exercice même de la philosophie qui en seraient bouleversés.
Imaginaire de la fin du livre : figures du livre et pratiques illittéraires
Authors: Gervais Bertrand 
Published: January 2023

Resume :Dans un contexte culturel marqué par une crainte de la disparition du livre, on voit apparaître de nombreuses figures du livre et du texte. Ces figures sont des livres, mais aussi, d’une façon plus précise, des textes, qui ne se donnent pas à lire, mais à regarder. Des textes devenus en partie illisibles, où l’accès aux signes et à leur sens est entravé d’une façon ou d’une autre. Ces textes peuvent avoir été simplement effacés, comme ils peuvent avoir été altérés par une accumulation de notes et de signes ou rendus opaques par une mise en page complexe, de même que par l’ajout de fonctionnalités informatiques. Ce sont des écrits où la dimension iconique prévaut sur la dimension linguistique. Trois exemples de livres altérés sont décrits. Dans les trois cas, le travail de réappropriation et de transfiguration des pages ne conduit pas à délaisser le format du livre, celui-ci est maintenu malgré tout. Les pages sont recouvertes de noir ou de dessins variés, qui laissent transparaître à l’occasion l’écrit original, ou encore elles sont découpées, ne laissant du papier que des languettes. Ce sont : A Humument. A treated Victorian Novel, de Tom Phillips ; TNT en Amérique de Jochen Gerner et Tree of Codes de Jonathan Safran Foer.
Du théâtralisable au théâtralisé — et retour : écriture et réécritures des dialogues dans En attendant Godot de Samuel Beckett
Authors: Protin Matthieu 
Published: January 2023

Resume :L’objectif de cet article est d’interroger la façon dont les différents états d’un texte de théâtre peuvent être appréhendés par le recours aux notions de théâtralisable et de théâtralisé. Son évolution ne dépend pas uniquement d’un processus de création littéraire, mais aussi d’une prise en compte, plus ou moins affirmée, de la scène, et de la connaissance qu’en a l’auteur, que ce soit comme lecteur, spectateur ou praticien. Le cas du dialogue d’En attendant Godot est à cet égard exemplaire : se situant dans la lignée du dialogue romanesque, comme le montre l’influence de Jacques le Fataliste de Diderot et de Mercier et Camier de Beckett, ce dialogue est repris par Beckett au fur et à mesure qu’il acquiert une expérience pratique du théâtre. En indiquant les principales évolutions du dialogue au fil de ses réécritures par l’auteur, nous montrons qu’elles sont liées à la confrontation incessante de ce que Beckett juge, à un moment, « théâtralisable », et à ce qu’il voit, ensuite, « théâtralisé » : de là provient la résurgence de plus en marquée de caractéristiques « dramatiques » que le dialogue venait initialement mettre à mal.