Academic literature on the topic 'Continuum fault models'

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Journal articles on the topic "Continuum fault models"

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So, Byung-Dal, and Fabio A. Capitanio. "Self-consistent stick-slip recurrent behaviour of elastoplastic faults in intraplate environment: a Lagrangian solid mechanics approach." Geophysical Journal International 221, no. 1 (2020): 151–62. http://dx.doi.org/10.1093/gji/ggz581.

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SUMMARY Our understanding of the seismicity of continental interiors, far from plate margins, relies on the ability to account for behaviours across a broad range of time and spatial scales. Deformation rates around seismic faults range from the slip-on-fault during earthquakes to the long-term viscous deformation of surrounding lithosphere, thereby presenting a challenge to modelling techniques. The aim of this study was to test a new method to simulate seismic faults using a continuum approach, reconciling the deformation of viscoelastoplastic lithospheres over geological timescales. A von M
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Sun, Haoran, Shuang Tian, Yuankai Xiang, Leiming Cheng, and Fujian Yang. "Analysis of Stress Perturbation Patterns in Oil and Gas Reservoirs Induced by Faults." Processes 13, no. 5 (2025): 1416. https://doi.org/10.3390/pr13051416.

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The distribution of in situ stress fields in reservoirs is critical for the accurate exploration and efficient exploitation of hydrocarbon resources, especially in deep, fault-developed strata where tectonic activities significantly complicate stress field patterns. To clarify the perturbation effects of faults on in situ stress fields in deep reservoirs, this study combines dynamic–static parameter conversion models derived from laboratory experiments (acoustic emission Kaiser effect and triaxial compression tests) with a coupled “continuous matrix–discontinuous fault” numerical framework imp
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Cheng, Feng, Andrew V. Zuza, Peter J. Haproff, et al. "Accommodation of India–Asia convergence via strike-slip faulting and block rotation in the Qilian Shan fold–thrust belt, northern margin of the Tibetan Plateau." Journal of the Geological Society 178, no. 3 (2021): jgs2020–207. http://dx.doi.org/10.1144/jgs2020-207.

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Existing models of intracontinental deformation have focused on plate-like rigid body motion v. viscous-flow-like distributed deformation. To elucidate how plate convergence is accommodated by intracontinental strike-slip faulting and block rotation within a fold–thrust belt, we examine the Cenozoic structural framework of the central Qilian Shan of northeastern Tibet, where the NW-striking, right-slip Elashan and Riyueshan faults terminate at the WNW-striking, left-slip Haiyuan and Kunlun faults. Field- and satellite-based observations of discrete right-slip fault segments, releasing bends, h
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Mancini, Simone, Margarita Segou, Maximilian Jonas Werner, and Tom Parsons. "The Predictive Skills of Elastic Coulomb Rate-and-State Aftershock Forecasts during the 2019 Ridgecrest, California, Earthquake Sequence." Bulletin of the Seismological Society of America 110, no. 4 (2020): 1736–51. http://dx.doi.org/10.1785/0120200028.

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ABSTRACT Operational earthquake forecasting protocols commonly use statistical models for their recognized ease of implementation and robustness in describing the short-term spatiotemporal patterns of triggered seismicity. However, recent advances on physics-based aftershock forecasting reveal comparable performance to the standard statistical counterparts with significantly improved predictive skills when fault and stress-field heterogeneities are considered. Here, we perform a pseudoprospective forecasting experiment during the first month of the 2019 Ridgecrest (California) earthquake seque
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Mancini, Simone, Margarita Segou, Maximilian Werner, and Tom Parsons. "The Predictive Skills of Elastic Coulomb Rate‐and‐State Aftershock Forecasts during the 2019 Ridgecrest, California, Earthquake Sequence." Bulletin of the Seismological Society of America 110, no. 4 (2020): 1736–51. https://doi.org/10.1785/0120200028.

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Operational earthquake forecasting protocols commonly use statistical models for their recognized ease of implementation and robustness in describing the short‐term spatiotemporal patterns of triggered seismicity. However, recent advances on physics‐based aftershock forecasting reveal comparable performance to the standard statistical counterparts with significantly improved predictive skills when fault and stress‐field heterogeneities are considered. Here, we perform a pseudoprospective forecasting experiment during the first month of the 2019 Ridgecrest (California) earthquake sequence. We d
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Jung, Jai K., Thomas D. O’Rourke, and Christina Argyrou. "Multi-directional force–displacement response of underground pipe in sand." Canadian Geotechnical Journal 53, no. 11 (2016): 1763–81. http://dx.doi.org/10.1139/cgj-2016-0059.

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A methodology is presented to evaluate multi-directional force–displacement relationships for soil–pipeline interaction analysis and design. Large-scale tests of soil reaction to pipe lateral and uplift movement in dry and partially saturated sand are used to validate plane strain, finite element (FE) soil, and pipe continuum models. The FE models are then used to characterize force versus displacement performance for lateral, vertical upward, vertical downward, and oblique orientations of pipeline movement in soil. Using the force versus displacement relationships, the analytical results for
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Armandine Les Landes, Antoine, Théophile Guillon, Mariane Peter-Borie, Arnold Blaisonneau, Xavier Rachez, and Sylvie Gentier. "Locating Geothermal Resources: Insights from 3D Stress and Flow Models at the Upper Rhine Graben Scale." Geofluids 2019 (May 12, 2019): 1–24. http://dx.doi.org/10.1155/2019/8494539.

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To be exploited, geothermal resources require heat, fluid, and permeability. These favourable geothermal conditions are strongly linked to the specific geodynamic context and the main physical transport processes, notably stresses and fluid circulations, which impact heat-driving processes. The physical conditions favouring the setup of geothermal resources can be searched for in predictive models, thus giving estimates on the so-called “favourable areas.” Numerical models could allow an integrated evaluation of the physical processes with adapted time and space scales and considering 3D effec
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Weismüller, Christopher, Janos L. Urai, Michael Kettermann, Christoph von Hagke, and Klaus Reicherter. "Structure of massively dilatant faults in Iceland: lessons learned from high-resolution unmanned aerial vehicle data." Solid Earth 10, no. 5 (2019): 1757–84. http://dx.doi.org/10.5194/se-10-1757-2019.

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Abstract. Normal faults in basalts develop massive dilatancy in the upper few hundred meters below the Earth's surface with corresponding interactions with groundwater and lava flow. These massively dilatant faults (MDFs) are widespread in Iceland and the East African Rift, but the details of their geometry are not well documented, despite their importance for fluid flow in the subsurface, geohazard assessment and geothermal energy. We present a large set of digital elevation models (DEMs) of the surface geometries of MDFs with 5–15 cm resolution, acquired along the Icelandic rift zone using u
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Dey, Sandip, and Solomon Tesfamariam. "Probabilistic Seismic Risk Analysis of Buried Pipelines Due to Permanent Ground Deformation for Victoria, BC." Geotechnics 2, no. 3 (2022): 731–53. http://dx.doi.org/10.3390/geotechnics2030035.

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Buried continuous pipelines are prone to failure due to permanent ground deformation as a result of fault rupture. Since the failure mode is dependent on a number of factors, a probabilistic approach is necessary to correctly compute the seismic risk. In this study, a novel method to estimate regional seismic risk to buried continuous pipelines is presented. The seismic risk assessment method is thereafter illustrated for buried gas pipelines in the City of Victoria, British Columbia. The illustrated example considers seismic hazard from the Leech River Valley Fault Zone (LRVFZ). The risk asse
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Olsen-Kettle, Louise, Hans Mühlhaus, and Christian Baillard. "A study of localization limiters and mesh dependency in earthquake rupture." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 368, no. 1910 (2010): 119–30. http://dx.doi.org/10.1098/rsta.2009.0190.

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No complete physically consistent model of earthquake rupture exists that can fully describe the rich hierarchy of scale dependencies and nonlinearities associated with earthquakes. We study mesh sensitivity in numerical models of earthquake rupture and demonstrate that this mesh sensitivity may provide hidden clues to the underlying physics generating the rich dynamics associated with earthquake rupture. We focus on unstable slip events that occur in earthquakes when rupture is associated with frictional weakening of the fault. Attempts to simulate these phenomena directly by introducing the
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Dissertations / Theses on the topic "Continuum fault models"

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Zacarias, Alisson Teixeira. "Determinação da variação de rigidez em placas, através da metodologia dos observadores de estados /." Ilha Solteira : [s.n.], 2008. http://hdl.handle.net/11449/94563.

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Orientador: Gilberto Pechoto de Melo<br>Banca: Vicente Lopes Júnior<br>Banca: Raquel Santini Leandro Rade<br>Resumo: Hoje em dia um dos fatores de interesse das indústrias no desenvolvimento de novas técnicas de detecção e localização de falhas é a preocupação com a segurança de seus sistemas, tendo-se a necessidade de supervisão e monitoramento de modo que as falhas sejam detectadas e corrigidas o mais rápido possível. Verifica-se na prática que determinados parâmetros dos sistemas podem variar durante o processo, devido a características específicas ou o desgaste natural de seus componentes.
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Wong, Kam Lung. "Studies on a continuous Markov model for probabilistic fault analysis in VLSI sequential circuits using computer simulation." Thesis, University of Ottawa (Canada), 1990. http://hdl.handle.net/10393/5876.

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A continuous parameter Markov model is proposed in this thesis to detect permanent stuck-at faults in sequential circuits by random testing. Given a sequential circuits with certain stuck-at faults specified, the fault-free and the faulty state tables of the circuit can be readily derived. By simulation of these two state tables on a computer, the parameters of the desired Markov model can be obtained. For a specified confidence level, it is easy to derive the model parameters and to estimate the required testing time. A complete mathematical analysis of the model is given that provides some u
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Zacarias, Alisson Teixeira [UNESP]. "Determinação da variação de rigidez em placas, através da metodologia dos observadores de estados." Universidade Estadual Paulista (UNESP), 2008. http://hdl.handle.net/11449/94563.

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Made available in DSpace on 2014-06-11T19:27:14Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-04-19Bitstream added on 2014-06-13T18:55:45Z : No. of bitstreams: 1 zacarias_at_me_ilha.pdf: 587117 bytes, checksum: 4a907603292d52ff41cf7df3b7718be5 (MD5)<br>Hoje em dia um dos fatores de interesse das indústrias no desenvolvimento de novas técnicas de detecção e localização de falhas é a preocupação com a segurança de seus sistemas, tendo-se a necessidade de supervisão e monitoramento de modo que as falhas sejam detectadas e corrigidas o mais rápido possível. Verifica-se na prática que de
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Ekanayake, R. M. Thushara Chaminda Bandara. "Fault diagnosis: A distributed model-based approach for safety-critical complex reactive systems with hybrid dynamics." Thesis, Queensland University of Technology, 2020. https://eprints.qut.edu.au/135714/1/R%20M%20Thushara%20Chaminda%20Bandara_Ekanayake_Thesis.pdf.

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This thesis develop basis to implement integrated control and fault diagnosis systems for complex dynamic safety-critical systems. A distributed systems architecture and its implementation on a real physical elevator system was discussed giving recommendations for commercial applications. A physical system was modelled as a combined model of finite state machines and bond graphs.
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Hadj, Hassen Faouzi. "Modelisation par un milieu continu du comportement mecanique d'un massif rocheux a fissuration orientee." Paris, ENMP, 1988. http://www.theses.fr/1988ENMP0120.

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Dans le but d'optimiser la conception des ouvrages realises dans les massifs rocheux, on prend en compte les discontinuites qui les affectent et on etablit un modele qui etudie le comportement mecanique d'un massif fissure grace a des eprouvettes fracturees
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ABDALLAH, HAISCAM. "Construction d'un logiciel de calcul des elements transitoires de chaines de markov a temps continu." Rennes 1, 1989. http://www.theses.fr/1989REN10055.

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Developpement d'une methode et construction d'un logiciel permettant l'evaluation quantitative des mesures de la surete de fonctionnement des systemes informatiques. La methode proposee realise un calcul precis et rapide des elements transitoires. Des bornes relatives aux differentes erreurs sont mises en evidence. Plus precisement, elles concernent le probleme de precision relatif a la troncature et celui des erreurs d'arrondi. Des valeurs critiques, a partir desquelles les resultats avec un chiffre decimal significatif ne sont plus garantis, sont definies. Cette definition a permis le calcul
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Thabet, Rihab El Houda. "Détection de défauts des systèmes non linéaires à incertitudes bornées continus." Thesis, Bordeaux, 2014. http://www.theses.fr/2014BORD0283/document.

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La surveillance des systèmes industriels et/ou embarqués constitue une préoccupation majeure en raison de l’accroissement de leur complexité et des exigences sur le respect des profilsde mission. La détection d’anomalies tient une place centrale dans ce contexte. Fondamentalement,les procédures de détection à base de modèles consistent à comparer le fonctionnement réel dusystème avec un fonctionnement de référence établi à l’aide d’un modèle sans défaut. Cependant,les systèmes à surveiller présentent souvent des dynamiques non linéaires et difficiles à caractériserde manière exacte. L’approche
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Hillers, G. "On the origin of earthquake complexity in continuum fault models with rate and state friction." Thesis, 2005. http://hdl.handle.net/2122/1024.

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It is of great interest to isolate the fundamental physical mechanism controlling observed statistical properties of seismicity patterns. We present four numerical studies investigating the e ciency of uid related mechanisms and the role of fault zone heterogeneity in producing observed earthquake complexities. The 3-D models of the continuous class are governed by rate- and state-dependent friction and, depending on the problem, by elasto-hydraulic interactions or heterogeneous frictional properties on the 2-D fault plane. First, for certain ranges of hydraulically relevant parameters dilata
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Kibey, Sandeep A. "Mesoscale models for stacking faults, deformation twins and martensitic transformations : linking atomistics to continuum. /." 2007. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3290271.

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Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2007.<br>Source: Dissertation Abstracts International, Volume: 68-11, Section: B, page: 7621. Adviser: Huseyin Sehitoglu. Includes bibliographical references (leaves 117-130) Available on microfilm from Pro Quest Information and Learning.
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Books on the topic "Continuum fault models"

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Continuum fatigue damage modeling for critical design, control, and fault prognosis. National Aeronautics and Space Administration, 1996.

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Cohn, Stephan, and P. Allan Klock. Operating Room Fires and Electrical Safety. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199366149.003.0018.

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Understanding electrical systems and fire safety protocols in the operating room is fundamental to patient and staff safety. Modern operating rooms are designed to reduce the risk of electrical hazards. Line isolation transformers were developed in the era of explosive anesthetics to reduce the risk of sparks and macro-shock. Isolated electrical supplies are still used in operating rooms because they allow surgery to continue while the line isolation alarm is activated and the source of the fault is investigated and deactivated. Ground fault circuit breaker interrupters may also be used in ope
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Farrell, David M., and Niamh Hardiman, eds. The Oxford Handbook of Irish Politics. Oxford University Press, 2021. http://dx.doi.org/10.1093/oxfordhb/9780198823834.001.0001.

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Ireland has enjoyed continuous democratic government for almost a century, an unusual experience among countries that gained their independence in the twentieth century. But the way this works has changed dramatically over time. Ireland’s colonial past has had an enduring influence over political life, enabling stable institutions of democratic accountability, while also shaping economic underdevelopment and persistent emigration. More recently, membership of the EU has brought about far-reaching transformation across almost all aspects of life. But the paradoxes have only intensified. Now one
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Berns, Egidius. Porosity between Politics and the Economy. Edited by Frank Chouraqui. The Rowman & Littlefield Publishing Group, 2022. https://doi.org/10.5040/9781978723528.

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Porosity between Politics and the Economy addresses the relationships between politics and the economy in deeply original ways. It is a book motivated by a sense of urgency aroused by both the failure of modern capitalism and the environmental crisis. Egidius Berns argues that the relations between politics and the economy are porous, and he investigates the consequences of this porosity. By mapping out of a number of conceptual fault lines that underpin the weaknesses of post-industrial capitalist societies, Berns provides a fresh look at the current crisis of open societies. But the book als
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Lockwood, Erin. The Politics and Practices of Central Clearing in OTC Derivatives Markets. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190864576.003.0007.

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This chapter focuses on the unintended consequences of the post-crisis mandate that over-the-counter (OTC) derivatives be cleared through centralized clearinghouses in an effort to reduce counterparty and systemic risk. Although central clearing has been widely implemented, it has reproduced many of the same characteristics of financial markets that contributed to the 2008 crisis: concentrated risk, moral hazard, and a reliance on faulty risk models. What accounts for the recalcitrance of the OTC derivatives market to a regulatory change? The chapter argues that focusing on the technologies an
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Fitzsimmons, Rebekah, and Casey Alane Wilson, eds. Beyond the Blockbusters. University Press of Mississippi, 2020. http://dx.doi.org/10.14325/mississippi/9781496827135.001.0001.

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While the critical and popular attention afforded to twenty-first century young adult literature has exponentially increased in recent years, the texts selected for discussion in both classrooms and scholarship has remained static and small. Twilight, The Hunger Games, The Fault in Our Stars, and The Hate U Give dominate conversations among scholars and critics—but they are far from the only texts in need of analysis. Beyond the Blockbusters: Themes and Trends in Contemporary Young Adult Fiction offers a necessary remedy to this limited perspective by bringing together a series of essays about
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Lyons, Fintan. The Persistence of Evil. Bloomsbury Publishing Plc, 2023. http://dx.doi.org/10.5040/9780567710154.

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Recording the history of the belief in the existence of Satan, this book draws from the Bible, the poetry of Dante and Milton, the legend of Faust, and from modern novels and plays such as the works of Mark Twain and G.B. Shaw, and the spiritual writing of C. S. Lewis. Fintan Lyons O.S.B. chronicles the decline of that belief through the centuries as well as the attempts to treat the problem of evil philosophically, using the insights of thinkers such as Karl Barth. At the heart of this book is the attempt to synthesise or reconcile traditional belief with contemporary concern or even alarm re
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Foerstel, Herbert N. Banned in the Media. Greenwood, 1998. http://dx.doi.org/10.5040/9798400616389.

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From colonial times to the present, the media in America has been subject to censorship challenges and regulations. This comprehensive reference guide to media censorship provides in-depth coverage of each media format—newspapers, magazines, motion pictures, radio, television, and the Internet—all of which have been, and continue to be, battlegrounds for First Amendment issues. Each media format is examined in-depth, from its origins and history through its modern development, and features discussion of landmark incidents and cases. Foerstel, author ofBanned in the U.S.A., the acclaimed refere
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Book chapters on the topic "Continuum fault models"

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Mashiloane, Kabelo, Peet F. Le Roux, and Coneth G. Richards. "Simulation and Fault Diagnostics Using I–V and P–V Curve Tracing." In Lecture Notes in Networks and Systems. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-4581-4_9.

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AbstractLocalization of problems continues to be very difficult, especially in large-scale photovoltaic (PV) systems. Especially for small-scale PV plants, the layout of PV systems significantly impacts the efficiency of detection systems. Due to faults occurring within PV arrays, this paper aims to highlight the value of fault detection in PV systems through I–V curve features. This is achieved by simulating models using MATLAB/Simulink of normal and faulty operations. Investigating faults in solar PV arrays is critical in improving PV systems’ dependability, effectiveness, and safety. A quic
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Zhu, Yucai, and Ton Backx. "Identification for Fault Diagnosis; Estimation of Continuous-Time Models." In Identification of Multivariable Industrial Processes. Springer London, 1993. http://dx.doi.org/10.1007/978-1-4471-2058-2_10.

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Ouyang, Daosheng, Yiqiang Zou, Yunshi Hu, Yimin You, Jing Lin, and Weiming Tong. "Intelligent Diagnosis of High-Voltage Switchgear Based on GANs and DualLSTM-DropNet." In Lecture Notes in Electrical Engineering. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-4856-6_9.

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Abstract As artificial intelligence technology continues to advance in the smart grid domain, it shows significant potential for optimizing online monitoring and intelligent diagnosis of high-voltage switchgear. Online monitoring and intelligent diagnosis involve the real-time collection of characteristic parameters to assess equipment health, enabling fault diagnosis, condition evaluation, and lifespan prediction through algorithmic integration. However, challenges such as limited data samples, insufficient data validity and correlation, reliance on single diagnosis algorithms, and suboptimal
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Wang, Jing, Jinglin Zhou, and Xiaolu Chen. "Soft-Transition Sub-PCA Monitoring of Batch Processes." In Intelligent Control and Learning Systems. Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-8044-1_5.

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AbstractBatch or semi-batch processes have been utilized to produce high-value-added products in the biological, food, semi-conductor industries. Batch process, such as fermentation, polymerization, and pharmacy, is highly sensitive to the abnormal changes in operating condition. Monitoring of such processes is extremely important in order to get higher productivity. However, it is more difficult to develop an exact monitoring model of batch processes than that of continuous processes, due to the common natures of batch process: non-steady, time-varying, finite duration, and nonlinear behavior
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Gelso Esteban R., Castillo Sandra M., and Armengol Joaquim. "An interval-based approach for fault isolation and identification in continuous dynamic systems." In Frontiers in Artificial Intelligence and Applications. IOS Press, 2008. https://doi.org/10.3233/978-1-58603-925-7-421.

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Diagnosis of faults is a very important task because a fault can lead to a reduction in performance, or even to break-downs or catastrophes. In this paper, a diagnosis system, which takes into account the uncertainties in the model and measurements by means of an interval scheme, is shown. It states the fault detection, fault isolation and fault identification problems as a constraint satisfaction problem (CSP) with continuous domain. The fault isolation scheme which consists of hypothesis generation and refinement uses the fault detection results, and the quantitative fault identification sch
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Mohan Khilar, Pabitra. "Genetic Algorithms." In Advances in Secure Computing, Internet Services, and Applications. IGI Global, 2014. http://dx.doi.org/10.4018/978-1-4666-4940-8.ch012.

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Genetic Algorithms are important techniques to solve many NP-Complete problems related to distributed computing and its application domains. Genetic algorithm-based fault diagnoses in distributed computing systems have been a feasible methodology to solve diagnosis problems recently. Distributed embedded systems consisting of sensors, actuators, processors/microcontrollers, and interconnection networks are one class of distributed computing systems that have long been used, staring from small-scale home appliances to large-scale satellite systems. Some of their applications are in safety-criti
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Pan, Jihui, Wenqing Qu, Hao Xue, Lei Zhang, and Liang Wu. "Study on Fault Prognostics and Health Management for UAV." In Frontiers in Artificial Intelligence and Applications. IOS Press, 2022. http://dx.doi.org/10.3233/faia220569.

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With the improvement of automation and intelligence degree of unmanned aerial vehicle, its application scenarios and service scope continue to expand. The UAV system is complex and the task environment is changeable, which poses new challenges to its safety and reliability. Fault prediction and Health management (PHM) technology can effectively reduce the risk of mission interruption caused by faults, and improve the quality of UAV mission throughout its life cycle. Firstly, the framework of UAV PHM technology is proposed based on the basic concepts of UAV and PHM technology, and then the rese
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Lumme, Veli. "Principles of Classification." In Diagnostics and Prognostics of Engineering Systems. IGI Global, 2013. http://dx.doi.org/10.4018/978-1-4666-2095-7.ch003.

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This chapter discusses the main principles of the creation and use of a classifier in order to predict the interpretation of an unknown data sample. Classification offers the possibility to learn and use learned information received from previous occurrences of various normal and fault modes. This process is continuous and can be generalized to cover the diagnostics of all objects that are substantially of the same type. The effective use of a classifier includes initial training with known data samples, anomaly detection, retraining, and fault detection. With these elements an automated, a co
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Ruba, Mircea, Claudia Marțiș, Paula Șerban, and Sebastian Ursache. "Perspective Chapter: Fundaments on Fault Tolerance for Electrical Machines’ Structures." In Fault Tolerance in Modern Engineering Systems [Working Title]. IntechOpen, 2025. https://doi.org/10.5772/intechopen.1011032.

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The chapter surveys several types of electrical machines from the perspective of fault tolerance, namely induction, switched reluctance, and permanent magnet synchronous machines. It begins with a brief discussion of the induction machine, offering solutions that enhance continuous operation despite fault occurrences. Given that switched reluctance machines have inherent design and structural benefits for fault-tolerant operation, this type of machine receives extended attention. Various machine structures are discussed, ranging from classical designs to those with increased stator-to-rotor po
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Burton, William C., and J. Stephen Schindler. "Proterozoic and Paleozoic evolution of the Blue Ridge geologic province in northern Virginia, USA." In Field Excursions to the Northern Sierra Nevada of California, the Mining Districts of the Sierra Nevada, and Cretaceous and Paleocene Sediments in Maryland, USA. Geological Society of America, 2023. http://dx.doi.org/10.1130/2023.0065(05)abs.

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ABSTRACT This field guide presents a one-day trip across the northern Virginia Blue Ridge geologic province and highlights published geologic mapping of Mesoproterozoic rocks that constitute the core of the Blue Ridge anticlinorium and Neoproterozoic cover-sequence rocks on the fold limbs. The guide presents zircon SHRIMP (sensitive high-resolution ion microprobe) U-Pb crystallization ages of granitoid rocks and discusses the tectonic and petrologic evolution of basement rocks during the Mesoproterozoic. U-Pb data show more of a continuum for Blue Ridge Mesoproterozoic magmatic events, from ca
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Conference papers on the topic "Continuum fault models"

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Yang, Borui, and Jinsong Zhao. "A Fault Detection Method Based on Key Variable Forecasting." In The 35th European Symposium on Computer Aided Process Engineering. PSE Press, 2025. https://doi.org/10.69997/sct.105964.

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This paper presents a novel fault detection method based on key variable forecasting models. The approach integrates future forecasts of key variables into a time window, allowing for early fault detection without modifying the offline training phase of the existing fault detection model. By incorporating predicted data into the detection process, the proposed method significantly improves fault detection rates and reduces detection delays. Experiments using the Continuous Stirred Tank Heater (CSTH) system demonstrate the superiority of our method over traditional approaches, showing the advan
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Liu, Hongyun, Weidong Liu, and Wen Tang. "Adaptive Neural Network Fault-Tolerant Control of Continuum Robots Using Cosserat Rod Model." In 2024 43rd Chinese Control Conference (CCC). IEEE, 2024. http://dx.doi.org/10.23919/ccc63176.2024.10662057.

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Gangsar, Purushottam, and Rajiv Tiwari. "Analysis of Time, Frequency and Wavelet Based Features of Vibration and Current Signals for Fault Diagnosis of Induction Motors Using SVM." In ASME 2017 Gas Turbine India Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/gtindia2017-4774.

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This paper presents a comparative analysis of the time, frequency and time-frequency domain based features of the vibration and current signals for identifying various faults in induction motors (IMs) using support vector machine (SVM). Four mechanical faults (bearing fault, unbalanced rotor, bowed rotor and misaligned rotor), and three electrical faults (broken rotor bars, stator winding fault with two severity levels and phase unbalance with two severity levels) are considered in the present study. The proposed fault diagnosis consists of three steps. In the first step, the vibration in thre
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Yu, Enyi, Xiaopeng Cao, Shilong Liu, Hui Wu, Yuan Di, and Yu-Shu Wu. "Risk Assessment of Fault Activation Using an Equivalent Continuum Method During Geological CO2 Storage in a Fractured Reservoir." In SPE Reservoir Simulation Conference. SPE, 2025. https://doi.org/10.2118/223876-ms.

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Abstract The stability of faults must be evaluated carefully for reliable and successful geological CO2 storage (GCS) projects, especially in reservoirs with abundant fractures and faults. The induced slip and reactivation of faults in fractured reservoirs can create significant leakage pathways. Therefore, investigating the geomechanical response on faults through hydromechanical and geomechanical coupled simulations is crucial but challenging. It requires constructing fine computational grids that conform to fractures and faults, which is arduous in 3D field-scale settings. This study aims t
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Lopez-Campos, G., M. A. Nikolinakou, P. B. Flemings, and D. M. Saffer. "Stress Distribution in Accreting Sediments: A Geomechanical Study of Upper-Plate Faults." In 58th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2024. http://dx.doi.org/10.56952/arma-2024-0708.

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ABSTRACT: We study the influence of an upper-plate fault on the stress state of accreting sediments under large-scale deformation. We develop drained evolutionary geomechanical models using the Finite Element program Elfen. We simulate sediments as porous-elastoplastic material, and we model the fault as a pre-existing contact surface with a varying frictional strength that is lower than the intact sediment. The weaker fault results in a decrease in sediment differential stress near and especially seaward of the fault. A significant section of the wedge is affected by this stress variation. In
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Mohammadi, Rasul, Shahin Hashtrudi-Zad, and Khashayar Khorasani. "Hybrid Fault Diagnosis: Application to a Gas Turbine Engine." In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-60075.

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This paper presents a hybrid framework for fault diagnosis of complex systems that are modeled by hybrid automata. A bank of residual generators is constructed based on the continuous models of the system. Each residual generator is modeled by a discrete-event system (DES). Next, the DES models of the residual generators and the DES model of the hybrid plant are combined to build an “extended DES” model. A hybrid diagnoser is constructed based on the extended DES model. The hybrid diagnoser effectively combines the readings of discrete sensors and the information supplied by the residual gener
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Libby, S. A. "Modelling Faults as Fracture Swarms to Introduce Multi-Scale Heterogeneity." In 58th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2024. http://dx.doi.org/10.56952/arma-2024-0934.

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ABSTRACT: Faults modify the geomechanical and hydrogeological properties of their host rock. Consequently, proper characterization of faults is relevant to a wide range of sectors including energy, storage and sequestration, mining and geotechnical. Although faults may be conceptualized as simple surfaces when considered at their full scale, a detailed view reveals a heterogeneous structure with damage zones and anastomosing fault cores. Consequently, simulations of whole fault systems can achieve reasonable results by modelling the faults as simple surfaces, but where model applications requi
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Zhou, Kai, and J. Tang. "Fuzzy Classification of Gear Fault Using Principal Component Analysis-Based Fuzzy Neural Network." In 2020 International Symposium on Flexible Automation. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/isfa2020-9632.

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Abstract Condition assessment of machinery components such as gears is important to maintain their normal operations and thus can bring benefit to their life circle management. Data-driven approaches haven been a promising way for such gear condition monitoring and fault diagnosis. In practical situation, gears generally have a variety of fault types, some of which exhibit continuous severities of fault. Vibration data collected oftentimes are limited to reflect all possible fault types. Therefore, there is practical need to utilize the data with a few discrete fault severities in training and
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Bayat, Farnaz, Milad Kowsari, and Benedikt Halldórsson. "PARAMETRIZATION OF SYNTHETIC NEAR-FAULT SEISMIC WAVEFIELDS FOR THE SOUTHWEST ICELAND TRANSFORM ZONE." In 3rd Croatian Conference on Earthquake Engineering. University of Zagreb Faculty of Civil Engineering, 2025. https://doi.org/10.5592/co/3crocee.2025.158.

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Iceland is one of the northern European countries with the highest seismic activity. The strongest earthquakes take place on two large transform faults, one of which is the densely populated South Iceland Seismic Zone (SISZ), characterized by its unique North-South aligned bookshelf dextral strike-slip faults that are responsible for the long-term release of tectonic strain across the zone. The bookshelf fault system has been shown to be continuous towards West, all along the Reykjanes Peninsula Oblique Rift (RPOR), bringing the Capital region of Reykjavík, in greater proximity to the bookshel
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Noufal, Abdelwahab, Safeya Alkatheeri, Khalid Obaid, Abdulla Shehab, Hamda Al Shehhi, and Saleh Al Hadarem. "Abu Dhabi Tectonic Evolution: Novel Model Impacting Hydrocarbon Potentiality and Trapping Mechanism." In ADIPEC. SPE, 2023. http://dx.doi.org/10.2118/216263-ms.

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Abstract There is evidence that the Oman Mountains deformation is being continued by massive thrust fault systems in the Eastern Abu Dhabi basins. These are large-scale thrust faults with a strike-slip component that most likely include a fault damage zone encircling the fault core, a zone of strong rock shearing, and complicated zones of deformation involving numerous fault planes. The initial event was caused by the compressional movement of the Masirah, which faulted and folded again during the Semail tectonic events. Large faults are typically modeled on seismic as a single, large slip pla
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Reports on the topic "Continuum fault models"

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Beshouri, Greg, and Bob Goffin. PR-309-15209-R01 Evaluation of NSCR Specific Models for Use in CEPM. Pipeline Research Council International, Inc. (PRCI), 2019. http://dx.doi.org/10.55274/r0011554.

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This 2015 NSCR project continues NSCR research started in 2009 and continued in 2011 under ERLE 2c and combines it with OBD research started in 2008 and continued in 2011. The 2009 NSCR research concluded that downstream measurement of lambda, O2 and NOx are useful for understanding performance of the entire package and evaluating compliance status and diagnosing system problems. However, that research also concluded that advanced signal conditioning and algorithms are required for unambiguous diagnostics. It also concluded system diagnostics was complex and beyond the capabilities of typical
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Wozniakowska, P., D. W. Eaton, C. Deblonde, A. Mort, and O. H. Ardakani. Identification of regional structural corridors in the Montney play using trend surface analysis combined with geophysical imaging, British Columbia and Alberta. Natural Resources Canada/CMSS/Information Management, 2021. http://dx.doi.org/10.4095/328850.

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The Western Canada Sedimentary Basin (WCSB) is a mature oil and gas basin with an extraordinary endowment of publicly accessible data. It contains structural elements of varying age, expressed as folding, faulting, and fracturing, which provide a record of tectonic activity during basin evolution. Knowledge of the structural architecture of the basin is crucial to understand its tectonic evolution; it also provides essential input for a range of geoscientific studies, including hydrogeology, geomechanics, and seismic risk analysis. This study focuses on an area defined by the subsurface extent
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Hayward, N., and S. Paradis. Geophysical reassessment of the role of ancient lineaments on the development of the western margin of Laurentia and its sediment-hosted Zn-Pb deposits, Yukon and Northwest Territories. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/330038.

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The role of crustal lineaments in the development of the western margin of Laurentia, Selwyn basin and associated sediment-hosted Zn-Pb deposits (clastic-dominated, Mississippi-Valley-type) in Yukon and NWT, are reassessed through a new 3-D inversion strategy applied to new compilations of gravity and magnetic data. Regionally continuous, broadly NE-trending crustal lineaments including the Liard line, Fort Norman structure, and Leith Ridge fault, were interpreted as having had long-standing influence on craton, margin, and sedimentary basin development. However, multiple tectonic overprints i
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Rousseau, Henri-Paul. Gutenberg, L’université et le défi numérique. CIRANO, 2022. http://dx.doi.org/10.54932/wodt6646.

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Introduction u cours des deux derniers millénaires, il y a eu plusieurs façons de conserver, transmettre et même créer la connaissance ; la tradition orale, l’écrit manuscrit, l’écrit imprimé et l’écrit numérisé. La tradition orale et le manuscrit ont dominé pendant plus de 1400 ans, et ce, jusqu’à l’apparition du livre imprimé en 1451, résultant de l’invention mécanique de Gutenberg. Il faudra attendre un peu plus de 550 ans, avant que l’invention du support électronique déloge à son tour le livre imprimé, prenant une ampleur sans précédent grâce à la révolution numérique contemporaine, résul
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