Academic literature on the topic 'Self-repair'

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Journal articles on the topic "Self-repair"

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Fox, Barbara A., Fay Wouk, Steven Fincke, Wilfredo Hernandez Flores, Makoto Hayashi, Minna Laakso, Yael Maschler, et al. "Morphological self-repair." Studies in Language 41, no. 3 (October 25, 2017): 638–59. http://dx.doi.org/10.1075/sl.41.3.04fox.

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Abstract In this study we explore patterns of same-turn self-repair within the word, across ten typologically and areally diverse languages. We find universal processes emerging through language-specific resources, namely: recycling is used to delay a next item due, while replacement is used to replace an inappropriate item. For example, most of our languages with prefixes or proclitics recycle those elements to delay production of the root/host, while languages with suffixes tend not to recycle just suffixes without their roots/hosts, since that would not serve to delay the production of the root/host; rather, the whole word is recycled. Replacement of affixes and clitics is rare, regardless of position. We provide several possible explanations for these facts, all based on the nature of replacement.
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Théry, Manuel, and Laurent Blanchoin. "Microtubule self-repair." Current Opinion in Cell Biology 68 (February 2021): 144–54. http://dx.doi.org/10.1016/j.ceb.2020.10.012.

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Zwoliński, Mark. "FROM SELF-TEST TO SELF-REPAIR." IFAC Proceedings Volumes 39, no. 17 (2006): 59–64. http://dx.doi.org/10.3182/20060926-3-pl-4904.00011.

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Giesen, Hans, Raphael Rubin, Benjamin Gojman, and Andre DeHon. "Self-Adaptive Timing Repair." IEEE Design & Test 34, no. 6 (December 2017): 54–62. http://dx.doi.org/10.1109/mdat.2017.2750912.

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Cohen, Marc A. "Apology as Self-Repair." Ethical Theory and Moral Practice 21, no. 3 (June 2018): 585–98. http://dx.doi.org/10.1007/s10677-018-9906-6.

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Grand, Stanley. "Self-Repair in Psychoanalysis." Contemporary Psychology: A Journal of Reviews 37, no. 7 (July 1992): 708–9. http://dx.doi.org/10.1037/032378.

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Kim, Tae Hwan, and Hoon Chang. "Built-In Self Repair for Embedded NAND-Type Flash Memory." KIPS Transactions on Computer and Communication Systems 3, no. 5 (May 31, 2014): 129–40. http://dx.doi.org/10.3745/ktccs.2014.3.5.129.

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Lester, David, and Rina Terry. "Emotional Self-Repair and Poetry." OMEGA - Journal of Death and Dying 28, no. 1 (February 1994): 79–84. http://dx.doi.org/10.2190/qla3-6qwh-pvxp-5jr7.

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Some scholars have argued that writing poetry was harmful for the psychological health of Sylvia Plath and Anne Sexton. Both writers seem to have suffered from affective disorders, but their poetry probably provided a cathartic benefit for them and helped them gain cognitive distance from their inner conflicts, since the writing of poetry requires a great deal of technical revision that may have an effect similar to cognitive therapy. It is argued, therefore, that writing may have helped both of these poets to survive longer than they might have had they not written.
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Tichy, Matthias, Holger Giese, Daniela Schilling, and Wladimir Pauls. "Computing optimal self-repair actions." ACM SIGSOFT Software Engineering Notes 30, no. 4 (July 2005): 7–6. http://dx.doi.org/10.1145/1082983.1083224.

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Coyle, E. A., L. P. Maguire, and T. M. McGinnity. "Self-repair of embedded systems." Engineering Applications of Artificial Intelligence 17, no. 1 (February 2004): 1–9. http://dx.doi.org/10.1016/j.engappai.2003.11.009.

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Dissertations / Theses on the topic "Self-repair"

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Hough, Julian. "Modelling incremental self-repair processing in dialogue." Thesis, Queen Mary, University of London, 2014. http://qmro.qmul.ac.uk/xmlui/handle/123456789/9094.

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Self-repairs, where speakers repeat themselves, reformulate or restart what they are saying, are pervasive in human dialogue. These phenomena provide a window into real-time human language processing. For explanatory adequacy, a model of dialogue must include mechanisms that account for them. Artificial dialogue agents also need this capability for more natural interaction with human users. This thesis investigates the structure of self-repair and its function in the incremental construction of meaning in interaction. A corpus study shows how the range of self-repairs seen in dialogue cannot be accounted for by looking at surface form alone. More particularly it analyses a string-alignment approach and shows how it is insufficient, provides requirements for a suitable model of incremental context and an ontology of self-repair function. An information-theoretic model is developed which addresses these issues along with a system that automatically detects self-repairs and edit terms on transcripts incrementally with minimal latency, achieving state-of-the-art results. Additionally it is shown to have practical use in the psychiatric domain. The thesis goes on to present a dialogue model to interpret and generate repaired utterances incrementally. When processing repaired rather than fluent utterances, it achieves the same degree of incremental interpretation and incremental representation. Practical implementation methods are presented for an existing dialogue system. Finally, a more pragmatically oriented approach is presented to model self-repairs in a psycholinguistically plausible way. This is achieved through extending the dialogue model to include a probabilistic semantic framework to perform incremental inference in a reference resolution domain. The thesis concludes that at least as fine-grained a model of context as word-by-word is required for realistic models of self-repair, and context must include linguistic action sequences and information update effects. The way dialogue participants process self-repairs to make inferences in real time, rather than filter out their disfluency effects, has been modelled formally and in practical systems.
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Mujeeb, Ayeesha. "Self-assembled octapeptide gels for cartilage repair." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/selfassembled-octapeptide-gels-for-cartilage-repair(ce161da3-4ce4-4d42-b0cc-6933fc6aa394).html.

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Molecular self-assembly provides a simple and efficient route of constructing well-defined nanostructures which may serve as extra cellular matrix (ECM) mimics. This work focuses on two specific octapeptides: FEFEFKFK and FEFKFEFK (F: phenylalanine, E: glutamic acid, K: lysine) with alternating charge distribution. The peptides were shown to self-assemble in solution and form β-sheet rich nanofibres which, above a critical gelation concentration (CGC), entangle to form self-supporting hydrogels. The fibre morphology of the hydrogels was analysed using TEM and Cryo-SEM illustrating the dense fibrillar network of nanometer size fibres. Oscillatory rheology results showed that the hydrogels possesses viscoelastic properties. By varying peptide concentration and type hydrogel stiffness, viscosity, water content, fibre density and other mechanical properties were tailored to control cell interactions and subsequent tissue growth. Bovine chondrocytes were used to assess the biocompatibility of these novel scaffolds over 21 days under 2D and 3D cell culture conditions, particularly looking into cell morphology, proliferation and matrix deposition. 2D culture resulted in cell viability and collagen type I deposition. In 3D culture, the mechanically stable gel was shown to support viability, retention of cell morphology and collagen type II deposition. Subsequently, the scaffold may serve as a template for cartilage repair. In addition, this research also focused on developing novel injectable scaffold design with in situ gelation properties to encapsulate chondrocytes for cell culture applications.
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Xiong, Xingguo. "Built-in self-tTest and self-repair for capacitive mems devices." Cincinnati, Ohio : University of Cincinnati, 2005. http://www.ohiolink.edu/etd/view.cgi?acc%5Fnum=ucin1123038236.

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Thesis (Ph. D.)--University of Cincinnati, 2006.
Title from electronic thesis title page (viewed Mar. 28, 2006). Includes abstract. Keywords: Microelectromechanical System (MEMS); Built-in Self-test (BIST); Built-in Self-repair (BISR); Yield Analysis; Reliability. Includes bibliographical references.
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XIONG, XINGGUO. "BUILT-IN SELF-TEST AND SELF-REPAIR FOR CAPACITIVE MEMS DEVICES." University of Cincinnati / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1123038236.

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Warren, James Phillip. "Self-assembling peptide hydrogels for articular cartilage repair." Thesis, University of Leeds, 2017. http://etheses.whiterose.ac.uk/17538/.

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Osteoarthritis affects millions of people globally, with damage to articular cartilage causing pain and altered mechanics during articulation. The treatment for late stage osteoarthritis is surgical intervention ultimately leading to total joint replacements. These treatments are not ideal for younger or more active patients so there is a clinical need for an early stage intervention treatment to reduce or stop the progression of osteoarthritis. It has been reported that there is a correlation between the loss of glycosaminoglycans (GAGs) from within osteoarthritic cartilage and the changes in biomechanics of the cartilage. It is hypothesized that the re-introduction of GAGs into early stage osteoarthritic cartilage through the use of permanent linkage and integration into a self-assembling peptide hydrogel matrix which could penetrate the cartilage tissue would potentially restore the resistance to deformation observed in osteoarthritic cartilage. Initially, synthetic self-assembling peptide-chondroitin sulfate (CS) conjugates were synthesized through utilizing copper-catalyzed click chemistry and subsequently characterized. The chosen peptide-CS conjugates were then incorporated into self-assembling peptide hydrogels and the morphologies and gel properties were investigated and evaluated in terms of the closest resemblance to the natural properties of the surrounding cartilage into which the hydrogels would be eventually injected. The best hydrogel candidates were then taken forward to be injected into a GAG depleted early stage osteoarthritic porcine cartilage model developed by Andres Barco (University of Leeds) where a severely GAG depleted state had been produced through a succession of surfactant and phosphate buffered saline washes. The hydrogels were doped with fluorescently labelled material which integrated into the hydrogel matrix, then injected into the cartilage tissue in a monomeric state. The hydrogels then self-assembled in situ and the deformation of the tissue was measured through creep indentation. The introduction of the peptide-CS conjugate showed significant restoration of resistance to deformation.
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Jones, Joshua K. "Empirically-based self-diagnosis and repair of domain knowledge." Diss., Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/33931.

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In this work, I view incremental experiential learning in intelligent software agents as progressive agent self-adaptation. When an agent produces an incorrect behavior, then it may reflect on, and thus diagnose and repair, the reasoning and knowledge that produced the incorrect behavior. In particular, I focus on the self-diagnosis and self-repair of an agent's domain knowledge. The implementation of systems with the capability to self-diagnose and self-repair involves building both reasoning processes capable of such learning and knowledge representations capable of supporting those reasoning processes. The core issue my dissertation addresses is: what kind of metaknowledge (knowledge about knowledge) may enable the agent to diagnose faults in its domain knowledge? In providing a solution to this issue, the central contribution of this research is a theory of the kind of metaknowledge that enables a system to reason about and adapt its conceptual knowledge. For this purpose, I propose a representation that explicitly encodes metaknowledge in the form of procedures called Empirical Verification Procedures (EVPs). In the proposed knowledge representation, an EVP is associated with each concept within the agent's domain knowledge. Each EVP explicitly semantically grounds the associated concept in the agent's perception, and can thus be used as a test to determine the validity of knowledge of that concept during diagnosis. I present the formal and empirical evaluation of a system, Augur, that makes use of EVP metaknowledge to adapt its own domain knowledge in the context of a particular subclass of classification problem that I call compositional classification, in which the overall classification task can be broken into a hierarchically organized set of subtasks. I hypothesize that EVP metaknowledge will enable a system to automatically adapt its knowledge in two ways: first, by adjusting the ways that inputs are categorized by a concept, in accordance with semantics fixed by an associated EVP; and second, by adjusting the semantics of concepts themselves when they fail to contribute appropriately to system goals. The latter adaptation is realized by altering the EVP associated with the concept in question. I further hypothesize that the semantic grounding of domain concepts in perception through the use of EVPs will increase the generalization power of a learner that operates over those concepts, and thus make learning more efficient. Beyond the support of these hypotheses, I also present results pertinent to the understanding of learning in compositional classification settings using structured knowledge representations.
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Klement, Petr. "Analýza implementace projektu Customer Self-Repair ve společnosti HP." Master's thesis, Vysoká škola ekonomická v Praze, 2008. http://www.nusl.cz/ntk/nusl-17382.

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The aim of this diploma paper is to analyze the Customer Self-Repair project in Hewlett-Packard especially from costs and savings point of view that can be expected after the implementation of procedural changes that had to be made in the course of the project, while also indicate where mistakes were made from the perspective of project management and make suggestions on possible improvements in the future. The theoretical and methodological part is summed up a general theory concerning the problems of project management. The third chapter focuses on the practices of project management in the company, the definition stage the project should undergo and the criteria that should meet in order to pass the approval process. In the analysis of the project itself is captured the service model for the repairs of personal computers in the Europe, Middle East and Africa region. Than identification of error and procedural complications that occurred during the project. . At the end of this chapter is an analysis of actual savings and costs that can be realistically expected in the closing phase of the project. The last chapter contains a summary and suggestions for management of future projects in the company.
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Blackley, William Sinclair. "Self test and self repair strategies in VLSI architectures for high speed digital correlation." Thesis, University of Edinburgh, 1985. http://hdl.handle.net/1842/14106.

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Sarrazin, John Cody. "Ultrasonic repair of polymers fundamentals and modeling for self-healing /." Thesis, Montana State University, 2009. http://etd.lib.montana.edu/etd/2009/sarrazin/SarrazinJ0509.pdf.

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Although current research focuses within self-healing materials are advancing, most pursuits are passive systems, unlike the active biological systems they aim to mimic. In this paper an active method utilizing ultrasonic energy is explored. Ultrasonic inspection has served as an effective means toward nondestructive damage detection for decades. Also, a recent method called time-reversed acoustics allows for the redirection of acoustic waves back towards the source. The active healing method utilizes ultrasonic nondestructive damage detection to locate and categorize damage, and then provide coordinates for the redirection of an amplified ultrasonic energy to heal the material. First, the temperature change as a result of ultrasonic treatment was measured, and then a variety of dogbone samples were tensile tested, including virgin samples, damaged samples, and damaged but ultrasonically treated dogbone samples. The ultrasonic treatment increased the ultimate stress of the ultrasonically treated dogbone samples, which was a result of increased crystallinity. The crystallinity was confirmed with differential thermal analyses. The ultrasonic influence of material temperature and effect of ultrasonically treated damaged samples versus just untreated damaged samples were replicated with finite element models as a means to predict future application and use.
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Porter, Barry Francis. "An approach to generalising the self-repair of overlay networks." Thesis, Lancaster University, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.507297.

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Books on the topic "Self-repair"

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Ishida, Yoshiteru. Self-Repair Networks. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-26447-9.

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Brooks, B. David. The self-esteem repair & maintenance manual. Adelaide, S. Aust: Royal Society for the Blind of S.A., 1995.

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1948-, Dalby Rex K., and Hunter Paula J, eds. The self-esteem repair & maintenance manual. Newport Beach, Calif: Kincaid House, 1990.

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Cancer stories: Creativity and self-repair. Hillsdale, NJ: Analytic Press, 1990.

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1943-, Schore Allan N., ed. Affect regulation & the repair of the self. New York: W.W. Norton, 2003.

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Hest, E. van. Self-repair in L1 and L2 production. [Tilburg]: Tilburg University Press, 1996.

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Shor, Joel. Work, love, play: Self repair in the psychoanalytic dialogue. New York: Brunner/Mazel, 1992.

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Gay, Volney Patrick. Understanding the occult: Fragmentation and repair of the self. Philadelphia: Fortress Press, 1989.

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Self-help tech support: Computer hardware/software/wireless network repair, customization and optimization. Bloomington, Ind: AuthorHouse, 2009.

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Mancuso, Robert A. Responding to oral directions: Teaching self-monitoring and repair strategies to students with auditory comprehension difficulties. 2nd ed. Austin, Tex: Pro-ed, 2000.

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Book chapters on the topic "Self-repair"

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Taura, Akiko, and Takayuki Nakagawa. "Self-Repair." In Regenerative Medicine for the Inner Ear, 189–97. Tokyo: Springer Japan, 2014. http://dx.doi.org/10.1007/978-4-431-54862-1_20.

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Sorin, Daniel J. "Self-Repair." In Fault Tolerant Computer Architecture, 89–97. Cham: Springer International Publishing, 2009. http://dx.doi.org/10.1007/978-3-031-01723-0_5.

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Ishida, Yoshiteru. "Incentives for Repair in Self-Repair Networks." In Self-Repair Networks, 19–35. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-26447-9_2.

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Ishida, Yoshiteru. "Self-Repair Networks and the Self-Recognition Model." In Self-Repair Networks, 133–42. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-26447-9_11.

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Ishida, Yoshiteru. "Asymmetry Between Repair and Infection in Self-Repair Networks." In Self-Repair Networks, 97–106. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-26447-9_8.

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Gapsevicius, Mindaugas. "Self-Repair Lab." In Shared Habitats, 247–51. Bielefeld, Germany: transcript Verlag, 2021. http://dx.doi.org/10.14361/9783839456477-020.

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Ishida, Yoshiteru. "Introduction: Self-Action Models." In Self-Repair Networks, 1–18. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-26447-9_1.

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Ishida, Yoshiteru. "Self-Repair Networks as an Epidemic Model." In Self-Repair Networks, 123–32. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-26447-9_10.

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Ishida, Yoshiteru. "Conclusion." In Self-Repair Networks, 143–44. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-26447-9_12.

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Ishida, Yoshiteru. "A Phase Transition in Self-Repair Networks: Problems and Definitions." In Self-Repair Networks, 37–48. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-26447-9_3.

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Conference papers on the topic "Self-repair"

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Tichy, Matthias, Holger Giese, Daniela Schilling, and Wladimir Pauls. "Computing optimal self-repair actions." In the 2005 workshop. New York, New York, USA: ACM Press, 2005. http://dx.doi.org/10.1145/1083217.1083224.

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Dry, Carolyn. "Self sensing composites with emi shielding and self repair." In SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, edited by Jerome P. Lynch. SPIE, 2015. http://dx.doi.org/10.1117/12.2084254.

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Koal, Tobias, Heinrich Theodor Vierhaus, and Daniel Scheit. "A Concept for Logic Self Repair." In 2009 12th Euromicro Conference on Digital System Design, Architectures, Methods and Tools (DSD). IEEE, 2009. http://dx.doi.org/10.1109/dsd.2009.238.

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Koal, Tobias, and Heinrich T. Vierhaus. "Basic Architecture for Logic Self Repair." In 2008 14th IEEE International On-Line Testing Symposium (IOLTS). IEEE, 2008. http://dx.doi.org/10.1109/iolts.2008.17.

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Hou, Chih-Sheng, Jin-Fu Li, and Che-Wei Chou. "Test and Repair Scheduling for Built-In Self-Repair RAMs in SOCs." In 2010 Fifth IEEE International Symposium on Electronic Design, Test & Applications. IEEE, 2010. http://dx.doi.org/10.1109/delta.2010.42.

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Christensen, David Johan. "Experiments on Fault-Tolerant Self-Reconfiguration and Emergent Self-Repair." In 2007 IEEE Symposium on Artificial Life. IEEE, 2007. http://dx.doi.org/10.1109/alife.2007.367817.

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Sistonen, Esko V.-P. "Balcony repair with pumped self-compacting concrete." In 2nd International RILEM Symposium on Advances in Concrete through Science and Engineering. RILEM Publications, 2006. http://dx.doi.org/10.1617/2351580028.110.

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Yan, Yuhong, Pascal Poizat, and Ludeng Zhao. "Self-Adaptive Service Composition Through Graphplan Repair." In 2010 IEEE International Conference on Web Services (ICWS). IEEE, 2010. http://dx.doi.org/10.1109/icws.2010.91.

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Yim, Mark, Babak Shirmohammadi, Jimmy Sastra, Mike Park, Mike Dugan, and C. J. Taylor. "Robustness and self-repair in modular robots." In 2007 IEEE/RSJ International Conference on Intelligent Robots and Systems. IEEE, 2007. http://dx.doi.org/10.1109/iros.2007.4399535.

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Jyotika and Balwinder Singh. "Memory yield and repair rate improvement scheme using built in self repair techniques." In 2014 Innovative Applications of Computational Intelligence on Power, Energy and Controls with their impact on Humanity (CIPECH). IEEE, 2014. http://dx.doi.org/10.1109/cipech.2014.7019092.

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Reports on the topic "Self-repair"

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Rinard, Martin, and Michael Ernst. Learning and Repair Techniques for Self-Healing Systems. Fort Belvoir, VA: Defense Technical Information Center, May 2006. http://dx.doi.org/10.21236/ada451095.

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Mawassi, Munir, and Valerian Dolja. Role of RNA Silencing Suppression in the Pathogenicity and Host Specificity of the Grapevine Virus A. United States Department of Agriculture, January 2010. http://dx.doi.org/10.32747/2010.7592114.bard.

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RNA silencing is a defense mechanism that functions against virus infection and involves sequence-specific degradation of viral RNA. Diverse RNA and DNA viruses of plants encode RNA silencing suppressors (RSSs), which, in addition to their role in viral counterdefense, were implicated in the efficient accumulation of viral RNAs, virus transport, pathogenesis, and determination of the virus host range. Despite rapidly growing understanding of the mechanisms of RNA silencing suppression, systematic analysis of the roles played by diverse RSSs in virus biology and pathology is yet to be completed. Our research was aimed at conducting such analysis for two grapevine viruses, Grapevine virus A (GVA) and Grapevine leafroll-associated virus-2 (GLRaV- 2). Our major achievements on the previous cycle of BARD funding are as follows. 1. GVA and GLRaV-2 were engineered into efficient gene expression and silencing vectors for grapevine. The efficient techniques for grapevine infection resulting in systemic expression or silencing of the recombinant genes were developed. Therefore, GVA and GLRaV-2 were rendered into powerful tools of grapevine virology and functional genomics. 2. The GVA and GLRaV-2 RSSs, p10 and p24, respectively, were identified, and their roles in viral pathogenesis were determined. In particular, we found that p10 functions in suppression and pathogenesis are genetically separable. 3. We revealed that p10 is a self-interactive protein that is targeted to the nucleus. In contrast, p24 mechanism involves binding small interfering RNAs in the cytoplasm. We have also demonstrated that p10 is relatively weak, whereas p24 is extremely strong enhancer of the viral agroinfection. 4. We found that, in addition to the dedicated RSSs, GVA and GLRaV-2 counterdefenses involve ORF1 product and leader proteases, respectively. 5. We have teamed up with Dr. Koonin and Dr. Falnes groups to study the evolution and function of the AlkB domain presents in GVA and many other plant viruses. It was demonstrated that viral AlkBs are RNA-specific demethylases thus providing critical support for the biological relevance of the novel process of AlkB-mediated RNA repair.
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Wu, Yingjie, Selim Gunay, and Khalid Mosalam. Hybrid Simulations for the Seismic Evaluation of Resilient Highway Bridge Systems. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, November 2020. http://dx.doi.org/10.55461/ytgv8834.

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Bridges often serve as key links in local and national transportation networks. Bridge closures can result in severe costs, not only in the form of repair or replacement, but also in the form of economic losses related to medium- and long-term interruption of businesses and disruption to surrounding communities. In addition, continuous functionality of bridges is very important after any seismic event for emergency response and recovery purposes. Considering the importance of these structures, the associated structural design philosophy is shifting from collapse prevention to maintaining functionality in the aftermath of moderate to strong earthquakes, referred to as “resiliency” in earthquake engineering research. Moreover, the associated construction philosophy is being modernized with the utilization of accelerated bridge construction (ABC) techniques, which strive to reduce the impact of construction on traffic, society, economy and on-site safety. This report presents two bridge systems that target the aforementioned issues. A study that combined numerical and experimental research was undertaken to characterize the seismic performance of these bridge systems. The first part of the study focuses on the structural system-level response of highway bridges that incorporate a class of innovative connecting devices called the “V-connector,”, which can be used to connect two components in a structural system, e.g., the column and the bridge deck, or the column and its foundation. This device, designed by ACII, Inc., results in an isolation surface at the connection plane via a connector rod placed in a V-shaped tube that is embedded into the concrete. Energy dissipation is provided by friction between a special washer located around the V-shaped tube and a top plate. Because of the period elongation due to the isolation layer and the limited amount of force transferred by the relatively flexible connector rod, bridge columns are protected from experiencing damage, thus leading to improved seismic behavior. The V-connector system also facilitates the ABC by allowing on-site assembly of prefabricated structural parts including those of the V-connector. A single-column, two-span highway bridge located in Northern California was used for the proof-of-concept of the proposed V-connector protective system. The V-connector was designed to result in an elastic bridge response based on nonlinear dynamic analyses of the bridge model with the V-connector. Accordingly, a one-third scale V-connector was fabricated based on a set of selected design parameters. A quasi-static cyclic test was first conducted to characterize the force-displacement relationship of the V-connector, followed by a hybrid simulation (HS) test in the longitudinal direction of the bridge to verify the intended linear elastic response of the bridge system. In the HS test, all bridge components were analytically modeled except for the V-connector, which was simulated as the experimental substructure in a specially designed and constructed test setup. Linear elastic bridge response was confirmed according to the HS results. The response of the bridge with the V-connector was compared against that of the as-built bridge without the V-connector, which experienced significant column damage. These results justified the effectiveness of this innovative device. The second part of the study presents the HS test conducted on a one-third scale two-column bridge bent with self-centering columns (broadly defined as “resilient columns” in this study) to reduce (or ultimately eliminate) any residual drifts. The comparison of the HS test with a previously conducted shaking table test on an identical bridge bent is one of the highlights of this study. The concept of resiliency was incorporated in the design of the bridge bent columns characterized by a well-balanced combination of self-centering, rocking, and energy-dissipating mechanisms. This combination is expected to lead to minimum damage and low levels of residual drifts. The ABC is achieved by utilizing precast columns and end members (cap beam and foundation) through an innovative socket connection. In order to conduct the HS test, a new hybrid simulation system (HSS) was developed, utilizing commonly available software and hardware components in most structural laboratories including: a computational platform using Matlab/Simulink [MathWorks 2015], an interface hardware/software platform dSPACE [2017], and MTS controllers and data acquisition (DAQ) system for the utilized actuators and sensors. Proper operation of the HSS was verified using a trial run without the test specimen before the actual HS test. In the conducted HS test, the two-column bridge bent was simulated as the experimental substructure while modeling the horizontal and vertical inertia masses and corresponding mass proportional damping in the computer. The same ground motions from the shaking table test, consisting of one horizontal component and the vertical component, were applied as input excitations to the equations of motion in the HS. Good matching was obtained between the shaking table and the HS test results, demonstrating the appropriateness of the defined governing equations of motion and the employed damping model, in addition to the reliability of the developed HSS with minimum simulation errors. The small residual drifts and the minimum level of structural damage at large peak drift levels demonstrated the superior seismic response of the innovative design of the bridge bent with self-centering columns. The reliability of the developed HS approach motivated performing a follow-up HS study focusing on the transverse direction of the bridge, where the entire two-span bridge deck and its abutments represented the computational substructure, while the two-column bridge bent was the physical substructure. This investigation was effective in shedding light on the system-level performance of the entire bridge system that incorporated innovative bridge bent design beyond what can be achieved via shaking table tests, which are usually limited by large-scale bridge system testing capacities.
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A self-employed welder fatally injured during an explosion while welding a rim wheel to repair air leaks. U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, September 2000. http://dx.doi.org/10.26616/nioshsface99ma032.

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