Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 41 for “"fault models"”.
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On the Design of Self-Checking Systems Under Various Fault-Models
Made available in DSpace on 2014-12-12T20:54:40Z (GMT). No. of bitstreams: 1 7803979.pdf: 3649675 bytes, checksum: 21d4081509b369765a36fefcee8da69d (MD5) Previous issue date: 1977
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Process-based diagnosis: An approach to understanding novel failures
… suffered from either a dependence on explicit fault models or a tendency to produce unintuitive results. This research aims at achieving the explanatory power of explicit fault models, without sacrificing the robustness of consistency-based diagnosis. The unique compositional nature of the …
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Functional fault modeling and test vector development for VLSI systems
The attempts at classification of functional faults in VLSI chips have not been very successful in the past. The problem is blown out of proportions because methods used for testing have not evolved at the same pace as the technology. The fault-models proposed for LSI systems are no longer capable …
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Use of High-Level Descriptions in Fault Simulation and Test Generation
… advantage of using functional descriptions for fault simulation and test generation. By using functional descriptions, high-level functional modules are treated as circuit primitives, as compared with low-level gates and flip-flops which are used in conventional approaches, and the number of …
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Gate-Oxide-Short Defect Analysis and Fault Modeling Based on FinFET's 3D Structure
… of the defects and generation of reliable fault models are essential to create realistic set of test vectors to detect the defects.Automatic test pattern generation (ATPG) algorithms use traditional fault models that primarily capture the behavior of the circuit-under-test by introducing …
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An innovative fault analysis framework to enhance building operations
… A literature review was conducted for fault modeling and the fault mode and effect analysis (FMEA) applications to the building technology with a conclusion that few FMEA studies were applied in the building Heating, Ventilation, and Air-Conditioning (HVAC) systems. This study aims to …
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Simulation-based techniques for sequential circuit testing
Fault simulators are used extensively in the design of electronic circuits for both testing and fault diagnosis. Complex component types can be easily handled in a fault simulator, since processing occurs in the forward direction only, and various fault models can be accommodated. This research is …
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Scalable Byzantine State Machine Replication: Designs, Techniques, and Implementations
… infrastructures. The widely used Crash Fault Tolerance (CFT) fault model of consensus protocols is prone to malicious and adversarial behaviors as well as non-crash faults such as software bugs. The Byzantine fault-tolerance (BFT) model and its trust-based variant, the hybrid model, …
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CloudVal: a framework for failure validation of virtualization environment in cloud infrastructure
… infrastructure. A case study, based on injecting faults in the KVM hypervisor and XEN hypervisor, was conducted to show the viability of the framework. The study shows that due to the architectural differences between KVM and XEN, a direct comparison of the two virtualization systems is not …
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Optimization Techniques for Performance and Power Dissipation in Test and Validation
… of a path to be tested. The path delay fault models have been used for the purpose of studying this problem. Another important aspect in chip design is performance validation, which is increasingly perceived as the major bottleneck in integrated circuit design. Given the synthesizable …
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Asynchronous algorithms for shared memory machines
In an effort to develop more realistic models of computation, we introduce several asynchronous shared memory machines and design asynchronous algorithms for those machines. We first model asynchronous protocols for communication across unreliable channels using finite-state machines communicating …
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Understanding the fault-tolerance properties of large-scale storage systems
… as systems scale up, they become subject to faults and errors that previous-generation systems may never have encountered due to the rare nature of these faults. Because of the stiffness of the represented systems, and the complex relationships involved, it can be difficult to analyze these …
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Simulação de falta no enrolamento de campo de geradores síncronos pelo método dos elementos finitos
… both from Ansys property. In the study, some fault models are proposed, to observe the effect of those faults in the operational parameters of the machine. In the biggest part of the cases, these effects are hard to be observed during the operational routine, it will be analyzed the air gap …
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Automated Fault-Injection-Based Dependability Analysis of Distributed Computer Systems
NFTAPE is different from other fault-injection tools in that it separates the components that inject faults or trigger faults (called Lightweight Fault Injectors or Lightweight Triggers) from the rest of the tool. Though this is a simple change, it substantially improves our ability to analyze …
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A Performance-Efficient and Practical Processor Error Recovery Framework
… processor. Permanent transistor breakdown, or faults, can occur at any point in time in the processor’s lifetime. Errors are the discrepancies in the output of faulty circuits. This dissertation shows that the components containing faults can continue operating if the errors caused by them are …
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System Identification And Fault Detection Of Complex Systems
… is devoted to devising system identification and fault detection approaches and algorithms for a system characterized by nonlinear dynamics. Mathematical models of dynamical systems and fault models are built based on observed data from systems. In particular, we will focus on statistical subspace …
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Models of interseismic deformation with an analytic framework for the inclusion of general linear viscoelastic rheologies
… interseismic deformation using two-dimensional models of a vertical strike-slip fault in an elastic layer over a viscoelastic region. Central to this, I derive an analytic framework to include general linear viscoelastic theologies into models of interseismic deformation. Models with …
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Testing and Error Detection in Iterative Logic Arrays
… considered in the first part of this report. The fault model assumed is that faults in a cell can change a cell behavior in any arbitrary way, as long as the cell remains a combinational circuit. At the array level, two fault-models are considered: in the single cell fault-model (SCFM) we assume …
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Atmospheric and Ionospheric Responses to Acoustic and Gravity Waves Driven by Earthquakes and Tsunamis
… wave dynamics, based on earthquake finite-fault models, provides marked improvement for the simulation of realistic AGWs and coseismic ionospheric disturbances (CIDs). Particularly, earthquake rupture propagation (and its direction) plays important role in AGW and CID asymmetries. The …
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Experimental study of software dependability
… of software systems include software faults and hardware faults. To improve software dependability, it is necessary to understand the characteristics of these faults and how they affect software systems. In this study, a distributed fault injection and monitoring environment (DEFINE) …
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