Information Security – Theory vs. Reality
Exploring the concept of fault attacks in hardware security, this lecture delves into the various techniques used to compromise systems through non-nominal and nominal channels, as well as the potential risks introduced by trojan horses in the IT supply chain. The discussion includes differential fa
2 views • 37 slides
Cisco Systems Fault Managed Power Portfolio Overview
Cisco Systems offers an industry-leading Fault Managed Power (FMP) patent portfolio comprising 24 active assets across seven INPADOC families. The portfolio includes patents supporting fault-managed power systems, PoE deployments, DC power distribution, DC-DC conversion, and HVDC connectors. The FMP
6 views • 4 slides
Overview of Distributed Systems: Characteristics, Classification, Computation, Communication, and Fault Models
Characterizing Distributed Systems: Multiple autonomous computers with CPUs, memory, storage, and I/O paths, interconnected geographically, shared state, global invariants. Classifying Distributed Systems: Based on synchrony, communication medium, fault models like crash and Byzantine failures. Comp
10 views • 126 slides
Power System Fault Calculation and Protection Analysis
In this technical document, we delve into the calculation of fault current and fault apparent power in symmetrical three-phase short circuit scenarios within power systems. Through detailed equivalent circuit diagrams, reactance calculations, and per unit value derivations, the fault current and app
5 views • 15 slides
Smart Photovoltaics: Enhancing Fault Detection and Positioning
Smart photovoltaics (PV) technology aims to improve fault detection and positioning in large-scale PV systems. By equipping PV modules with AMP devices, real-time monitoring of environmental conditions and system status is enabled. The proposed automated troubleshooting method enhances efficiency in
0 views • 8 slides
Evolution of Mathematical Theories and Proof Systems
Development of mathematical theories such as model theory, proof theory, set theory, recursion theory, and computational complexity is discussed, starting from historical perspectives with Dedekind and Peano to Godel's theorems, recursion theory's golden age in the 1930s, and advancements in proof t
2 views • 29 slides
Fault Diagnosis in Mechanical and Electrical Systems
Explore the essential methods and techniques for fault diagnosis in mechanical and electrical systems in industrial settings. Learn to identify different types of faults, utilize fault-finding aids, and rectify issues promptly to prevent future failures. Discover industry-recognized fault diagnosing
2 views • 27 slides
Theory of Firms: Neoclassical vs. Modern Approaches
The theory of firms is explored through the Neoclassical and Modern perspectives. Neoclassical theory focuses on profit maximization, while Modern theory delves into managerial, principal-agent, and transaction cost theories. The discussion covers criticisms of Neoclassical theory and the essential
1 views • 79 slides
Doctrine of In Pari Delicto in Legal Context
The doctrine of in pari delicto (Latin for "in equal fault") dictates that when parties are equally at fault, the possessor's condition is considered better, meaning a person engaged in wrongdoing cannot sue another for the same act. Exceptions include the adverse interest and innocent insider excep
0 views • 4 slides
Customer Controlled SFI (CCSFI) Fault Raising Guide
This guide by British Telecommunications plc provides detailed instructions on raising a Customer Controlled Special Faults Investigation (CCSFI) fault. It covers topics such as Version Control, Best Practices for Knowledge Based Diagnostics (KBD) and CCSFI, logging in, and step-by-step guidance for
0 views • 19 slides
Guide to Raising a Fault with British Telecommunications plc
This guide by British Telecommunications plc provides detailed instructions on raising a fault, including best practices, version control, and using Knowledge Based Diagnostics (KBD) for diagnosing 21C copper and fibre broadband issues. It covers logging in, running KBD, accessing fault reporting to
0 views • 15 slides
Evolution of Light Theory: From Wave Theory to Quantum Theory
At the turn of the century, the discovery of the photoelectric effect challenged the wave theory of light, leading to the development of the quantum theory by Max Planck and Albert Einstein. This new theory introduced the concept of discrete energy units known as quanta, bridging the gap between wav
2 views • 62 slides
Seismic Source Parameters in Earthquake Dynamics
The seismic source parameters in earthquake dynamics involve describing a fault as a discontinuity causing displacements, requiring a complex treatment of forces. The Earth's equilibrium necessitates a specific system of forces to explain displacements along faults. The seismic moment tensor, consis
4 views • 32 slides
Health IT Systems Maintenance: Fault-Tolerant Strategies and Backup Best Practices
Explore the essential practices for creating fault-tolerant IT systems in healthcare, including risk assessment, backup strategies, and decommissioning guidelines. Learn about the importance of backups, backup strategies, and the challenges of maintaining system availability 24/7.
0 views • 17 slides
Geometric Routing Concepts and Byzantine Fault Tolerance
Geometric Routing enables routing without overhead, where each node knows its global coordinates and forwards messages based on proximity to the destination. Byzantine Faults pose challenges with arbitrary node behavior, but a Byzantine-Robust Geometric Routing algorithm addresses this in a 3-connec
2 views • 33 slides
HVAC Fault Codes Troubleshooting Guidelines
This guide provides troubleshooting steps for common HVAC fault codes including room temperature sensor malfunction, high and low-pressure protection, communication faults, and more. Each section includes indications, causes, and solutions to help identify and resolve issues effectively.
3 views • 14 slides
Raft Consensus Algorithm Overview
Raft is a consensus algorithm designed for fault-tolerant replication of logs in distributed systems. It ensures that multiple servers maintain identical states for fault tolerance in various services like file systems, databases, and key-value stores. Raft employs a leader-based approach where one
0 views • 34 slides
Fault Location and Detection in Smart Grids
Fast and accurate fault detection and location are crucial in power grid management, especially in smart grids with bidirectional power flow. This study explores various fault location methods including impedance-based and travelling waves-based approaches. It also discusses the use of Intelligent E
0 views • 10 slides
Fault-tolerant and Load-balanced VuFind Project Overview
Project Background: Part of the National Digital Library initiative, the VuFind project aims to provide a discovery interface for Finnish archives, libraries, and museums. It started development in 2012 due to the insufficiency of existing commercial products. The focus is on enhancing fault toleran
1 views • 19 slides
Fault Localization (Pinpoint) Project Proposal Overview
The Fault Localization (Pinpoint) project proposal aims to pinpoint the exact source of failures within a cloud NFV networking environment by utilizing a set of algorithms and APIs. The proposal includes an overview of the fault localization process, an example scenario highlighting the need for fau
0 views • 12 slides
RAID 5 Technology: Fault Tolerance and Degraded Mode
RAID 5 is a popular technology for managing multiple storage devices within a single array, providing fault tolerance through data striping and parity blocks. This article discusses the principles of fault tolerance in RAID 5, the calculation of parity blocks, handling degraded mode in case of disk
0 views • 12 slides
PSync: A Partially Synchronous Language for Fault-tolerant Distributed Algorithms
PSync is a language designed by Cezara Drăgoi, Thomas A. Henzinger, and Damien Zufferey to simplify the implementation and reasoning of fault-tolerant distributed algorithms. It introduces a DSL with key elements like communication-closed rounds, an adversary environment model, and efficient runtim
0 views • 22 slides
Theories of Interest in Microeconomics II
Explore various theories of interest in economics, including the Classical Theory, Liquidity Preference Theory by Keynes, Productivity Theory, Abstinence Theory, Time-Preference Theory, Fisher's Time Preference Theory, and the Loanable Fund Theory. These theories offer different perspectives on the
1 views • 6 slides
Byzantine Fault Tolerance: Protocols, Forensics, and Research
Explore the realm of Byzantine fault tolerance through protocols like State Machine Replication and HotStuff, discussing safety, liveness, forensic support, and the impact of Byzantine faults. Dive into decades of research on achieving fault tolerance and examining forensic support in the face of By
0 views • 24 slides
Theories of Divorce Under Hindu Law
Exploring the meaning of divorce under Hindu law, this article discusses the theories of divorce, including Fault Theory, Mutual Consent Theory, and Irretrievable Breakdown of Marriage Theory. These theories reflect the evolution of the concept of divorce within the Hindu Marriage Act of 1955, allow
0 views • 9 slides
Upcoming Changes to IPEX Fault Reporting Journey
This pack explains the upcoming changes to the IPEX fault reporting journey for customers. A new BT Wholesale Voice Products Ordering and Support System will be introduced in March 2017. Customers will need to transition to the new online IPEX fault reporting journey via the BTWholesale.com web port
0 views • 6 slides
Theory and Practice: A Case with Spectrum-Based Fault Localization
This study explores the alignment between theory and practice in the context of Spectrum-Based Fault Localization (SBFL). It delves into the analysis of execution traces, assigning suspiciousness scores to program elements, comparing SBFL formulas like Tarantula and Ochiai, and introducing new formu
0 views • 15 slides
Fault Localization Techniques in Software Debugging
Various fault localization techniques in software debugging are discussed, including black-box models, spectrum evaluation, comparison of artificial and real faults, failure modes, and design considerations. The importance of effective fault localization and improving fault localization tools is hig
1 views • 24 slides
Comprehensive Overview of Fault Modeling and Fault Simulation in VLSI
Explore the intricacies of fault modeling and fault simulation in VLSI design, covering topics such as testing philosophy, role of testing in VLSI, technology trends affecting testing, fault types, fault equivalence, dominance, collapsing, and simulation methods. Understand the importance of testing
0 views • 59 slides
Fault-Tolerant MapReduce-MPI for HPC Clusters: Enhancing Fault Tolerance in High-Performance Computing
This research discusses the design and implementation of FT-MRMPI for HPC clusters, focusing on fault tolerance and reliability in MapReduce applications. It addresses challenges, presents the fault tolerance model, and highlights the differences in fault tolerance between MapReduce and MPI. The stu
2 views • 25 slides
Quantum Error Correction and Fault Tolerance Overview
Quantum error correction and fault tolerance are essential for realizing quantum computers due to the challenge of decoherence. Various approaches, including concatenated quantum error correcting codes and topological codes like the surface code, are being studied for fault-tolerant quantum computin
0 views • 19 slides
Enhancing Fault Tolerance in BLIS with Algorithm-Based Techniques
Addressing the challenge of soft errors in supercomputers, this paper introduces algorithm-based fault tolerance methods to enhance the resilience of systems like BLIS. By integrating Application-Based Fault Tolerance (ABFT) into BLIS, the study aims to improve error detection and correction mechani
0 views • 48 slides
Low-Redundancy Proactive Fault Tolerance for Stream Machine Learning
This study focuses on enabling fault tolerance for stream machine learning through erasure coding. Fault tolerance is crucial in distributed environments due to worker failures, and existing approaches like reactive fault tolerance and proactive replication have drawbacks. The use of erasure coding
0 views • 20 slides
Doctor: Failure Detection and Notification for NFV
This presentation discusses the development of a fault management and maintenance framework for NFV, focusing on failure detection and notification. Key requirements include VIM consistency, resource awareness, immediate notifications, extensible monitoring, and fault correlation. The Doctor demo sh
0 views • 13 slides
Chapter 11 - Software Reliability and Fault Management
In software reliability engineering, understanding faults, errors, and failures is crucial. Explore fault management techniques including fault avoidance, detection, and tolerance to ensure dependable software. Discover how reliability requirements vary for different applications, from non-critical
0 views • 81 slides
Building Algorithmically Nonstop Fault Tolerant MPI Programs
Fault tolerance in large-scale supercomputers is a critical issue due to system failures. This article discusses hardware and software resilience techniques as well as Algorithm-based Fault Tolerance (ABFT) for building fault-tolerant MPI programs.
0 views • 26 slides
Theories of Personality: Type Theory, Trait Theory, Psychoanalytic Theory
Personality theories such as Type Theory, Trait Theory, and Psychoanalytic Theory classify personality based on various factors like body build, introversion/extroversion, enduring characteristics, and unconscious forces influencing behavior.
0 views • 13 slides
Consensus and Fault Tolerance on an Unknown Torus with Dense Byzantine Faults
This content discusses achieving consensus and fault tolerance on an unknown torus with dense Byzantine faults, exploring scenarios of sparse and dense faults in a network setting. It delves into the challenges of consensus algorithms on toroidal networks, highlighting the limits and complexities th
0 views • 23 slides
Vibration Signal Analysis for Gearbox Failure Classification
Gearboxes play a crucial role in power transmission, and early detection of faults is essential for safety and maintenance cost reduction. This study focuses on using vibration signals to classify mechanical faults in spur gearboxes, comparing Random Forest and KNN classification methods based on co
0 views • 29 slides
The Cost of Fault Tolerance in Multi-Party Communication Complexity
This work delves into the intricate realm of multi-party communication complexity, examining the minimum communication required for fault-tolerant computations. The study explores how various functions cope with failures, presenting insights on the exponential complexity blowup needed to withstand f
0 views • 35 slides