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234 articles for “Fault”
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OCL Fault Injection-Based Detection & Prevention of LDAP Query Injection Vulnerabilities
Abstract: Security for web application is a prime concern today. Lightweight Directory Access Protocol (LDAP) is used in web applications for enforcing authentication. It may suffer from LDAP injection vulnerabilities and that leads to some security breaches such as login bypass and privilege escalation. This is because of poor implementation of LDAP applications. Here we propose a technique, OCL fault injection-based detection and prevention of LDAP injection vulnerabilities. Here the design …
Published in Journal Of Network security · Vol. 6, Issue 3, 2018 · pp. 5–8 Read article
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Construction Faults Related with Complaints of Complete Denture Wearers in India
Abstract: Poor health is the result of edentulous state and leads to poor quality of life. The number of adult losing their natural teeth is decreasing; there are still large numbers of edentulous adults in the population. A retrospective study was conducted with information derived from literature (from 1995 till 2010) about the patients who were experiencing ongoing difficulties with new complete dentures, and to find out possible causes. Relationships were …
Published in Research and Reviews: A Journal of Dentistry · Vol. 3, Issue 1, 2012 · pp. 20–26 Read article
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IoT Innovations in Power System Monitoring: Reviewing Transmission Line Multiple Fault Detection Systems
Abstract: In this review, it is possible to highlight a new project idea called Transmission Line Multiple Fault Detection System with Internet of Things (IoT). It is a IoT based research that helps in identifying multiple failures on transmission lines leading to fast and correct response. It consist of installing many senors of different types like temperature sensors, current sensors, and vibration sensors on the lines in order to carry out …
Published in Journal of Control & Instrumentation · Vol. 15, Issue 1, 2024 · pp. 20–28 Read article
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Online State Estimation and Fault Detection of a Doubly Fed Induction Machine by an Interconnected High Gain Observer
Abstract: This article presents the states and disturbance estimation of a doubly fed induction machine by the use of an interconnected high gain observer. The supply is made of a rectifier, a filter and an inverter. We consider the parameters such as the load couple, the electromagnetic couple and the speed on the only basis of the electric quantities. The results show that the error between the estimated and measured parameters …
Published in Journal of Control & Instrumentation · Vol. 8, Issue 3, 2017 · pp. 1–11 Read article
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NUMERICAL ANALYSIS OF THE DYNAMIC BEHAVIOR OF THE EARTH DAM – CASE STUDY OF THE OURKISS DAM, ALGERIA.
Abstract: The analysis of failure due to the effect of propagation of normal and reverse faults with different angles of inclination and by slip through the Ourkiss dam is studied numerically.The study is done mainly at the end of the construction and at the highest water level. The non-linear finite difference method is used considering four angles of inclination of the fault, active at the centre of the dam base.The results …
Published in Journal of Geotechnical Engineering · Vol. 8, Issue 3, 2021 · pp. 20–31 Read article
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Consequence Analysis, Vulnerability Mapping and Fuzzy Fault Tree Analysis for a Better Disaster Management in and Around Chemical Industrial Areas
Abstract: Chemical industries are prone to hazards like fire, explosion and toxic gas releases. Qualitative and quantitative hazard analyses are essential for the identification and quantification of the hazards associated with chemical industries. This study presents the results of a consequence analysis carried out to assess the damage potential of the hazardous material storages in an industrial area of central Kerala, India. These results are used for the estimation of individual …
Published in Journal of Industrial Safety Engineering · Vol. 1, Issue 1, 2014 · pp. 12–18 Read article
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Reliability Analysis using Fault Tree Criterion: A Case Study of Inlet Guide Valve of Centrifugal Air Compressor
Abstract: Inlet guide valves (IGVs) are one of the most important components in centrifugal air compressors. Evaluating and analyzing the workings and potential failures of IGV ensures efficient working of centrifugal air compressor by eliminating the potential failure modes. Also, analyzing the risk of the component helps in ensuring reliability and safety, which can in turn ensure higher availability and utilization of the system as a whole. Reliability of IGV will …
Published in Journal of Industrial Safety Engineering · Vol. 1, Issue 2, 2014 · pp. 7–12 Read article
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Wavelet Based Protection Scheme on Renewable Energy Integrated Multi Terminal Transmission System
Abstract: The power plants behavior is crucial under faulted conditions and their interaction with protection systems. The major microgrid protection problem is related to huge difference between the fault current in utilitygrid mode and microgrid mode. As conventional protection system doesn’t offer solution for all micro grid protection challenge, but it needs advanced protection strategy. Protection system must be response to both the utilitygrid and microgrid faults. Rapid response is necessary …
Published in Journal of Instrumentation Technology & Innovations · Vol. 8, Issue 3, 2018 · pp. 27–34 Read article
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Efficient PCB Fault Detection System using Deep Learning and Image Processing
Abstract: Printed Circuit Boards (PCBs) are essential parts that support the operation of electronic equipment in a variety of sectors. Nevertheless, difficulties that manufacturers regularly face during the PCB manufacturing process lead to defective devices. However, current inspection processes occur after etching, wasting a lot of material and rendering defective PCBs unusable. This study discusses relevant practical difficulties and offers a method for identifying errors in real PCB images using Matlab …
Published in Journal of Nuclear Engineering & Technology · Vol. 13, Issue 3, 2023 · pp. 1–5 Read article
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Automatic Track Faults Detection and Time Delay by using Embedded System
Abstract: AbstractThe technology used in metro train movement is the one which is used in most developed countries. The train contains a controller that gives the permission to the continuous running of the train from initial station to the upcoming destination. In this module, a self-directed train will eliminate the need of any driver; therefore, any manmade error will not take place. In this project, arduino controller has been used as …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 7, Issue 2, 2019 · pp. 10–14 Read article
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Operative Protection Fortitude for Agip 1x15 MVA, 33/11KV Injection Substation
Abstract: The Electrical Power System generally consist of the Generation, transmission and distribution and this system require an adequate protection in it layers of operation to help protect electrical loads and equipment from damaging as to ensure healthy and quality power supply in the power system. The fault associated with this substation are short circuits, overloads, phase unbalance/imbalance, poor usage of protection which in turns causes regular trips/damage on equipment at …
Published in Journal of Electronic Design Technology · Vol. 13, Issue 3, 2022 · pp. 1–8 Read article
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A review of the employing of Wavelet transforms and Classifier Artificial intelligence (AI) methods for detecting power transmission difficulties
Abstract: Power systems use large interconnections to transmit and distribute electric power. For power transmission, the same voltage levels are used for minimum transmission losses. During power transmission faults may occur due to natural events such as lightning, strong wind, fire etc. Faults may occur between phase conductors to ground or between the phase conductors. Transmission line protection has been performed using the comparison of voltages and currents and activates the …
Published in Journal of Power Electronics and Power Systems · Vol. 14, Issue 2, 2024 · pp. 36–41 Read article
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Fallacious Reasoning (Emphasizes the flawed or misleading nature of the reasoning)
Abstract: It is essential to recognize that faulty reasoning and & faulty logic denote the same principle, both indicating a deficiency in reasoning. The term faulty denotes the presence of errors or imperfections, while logic pertains to sound reasoning or judgment. Faulty logic can also be seen as a rhetorical technique. This paper demonstrates how incorrect or misleading answers can ultimately guide us toward accurate conclusions. By honing the ability to …
Published in OmniScience: A Multi-disciplinary Journal · Vol. 15, Issue 3, 2025 Read article
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Enhancement of LVRT Capability in DFIG based Microgrids Using STATCOM
Abstract: The improvement of a grid-connected wind microgrid's Low Voltage Ride-Through (LVRT) capability using a Static Synchronous Compensator (STATCOM) is investigated in this research. The increasing penetration of wind energy into modern power systems necessitates advanced control strategies to maintain grid stability during voltage disturbances and fault conditions. In this study, a STATCOM is employed with an effectively tuned PI controller to provide enhanced dynamic response, voltage regulation, and reactive power …
Published in Trends in Electrical Engineering · Vol. 16, Issue 2, 2025 · pp. 44–57 Read article
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Security Vulnerability Assessment Of A Hypothetical Lng Gas Treating Plant Using A Spreadsheet Template
Abstract: The upsurge of terrorism and attacks on chemical plants in several nations, including Nigeria, has necessitated the need for vulnerability studies. This study uses the Security Vulnerability Assessment, Prevention, and Prediction approach to analyze the vulnerabilities of a hypothetical chemical plant using a developed spreadsheet template. With a safety barrier method, an attack model based on security barriers was developed. External, internal, interior, critical, and fail-safe security barriers were proposed …
Published in Emerging Trends in Chemical Engineering · Vol. 10, Issue 3, 2023 · pp. 1–12 Read article
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Optimum Setting of Distance Protection Scheme for HV Transmission Line
Abstract: Protective relays in a power system are used to detect system abnormalities and to execute appropriate commands to isolate swiftly only the faulty component from healthy system. One of the protective relay is the distance relay. When the fault occurs it is seen that large amount of current flows through the network. The distance relay detect the over current by measuring the impedance of the transmission line and send the …
Published in Journal of Power Electronics and Power Systems · Vol. 3, Issue 2, 2013 · pp. 23–36 Read article
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DGA Analysis of Transformer Oil with Experimental Investigation: An Effective Tool of Condition Monitoring for Power Transformer
Abstract: Dissolved Gas Analysis (DGA) is usually performed for power transformer condition based maintenance activities. The DGA has become a very popular technique for the monitoring the overall health of a power transformer. It is possible to distinguish faults such as partial discharge, over-heating, and arcing in a great variety of oil filled power transformers. A number of samples must be taken over a period of time to discern trends and …
Published in Journal of Power Electronics and Power Systems · Vol. 5, Issue 2, 2015 · pp. 9–16 Read article
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Design of Active Power Based Relay Algorithm to Overcome Transient Instability: 220 kV Amravati Substation Case Study
Abstract: This paper presents a new protective scheme, i.e. new relay algorithm to protect small scale generators against transient instability. The demand of installing small generators in distribution networks has been increased now-a-days. Small scale generators have low inertia constant. The inertia constant minimizes the frequency deviation which depends on the kinetic energy. Therefore frequency dynamics becomes slower and hence it increases the response time to react to fault events. Due …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 2, 2016 · pp. 64–73 Read article
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Flooding of Urban Drainage Systems: Risk Analysis Study
Abstract: Floods are considered as to be among the most severe natural disasters because of their unpredictability, their overwhelming power and the difficulty to assess the related risks. Consequently, flooding damage is inevitable. This paper focuses on the identification of potential flood hazards in urban drainage systems. The flooding causes and modes are analyzed by two main methods: fault tree and event tree. The frequencies of natural events and operational obstacles …
Published in Journal of Water Resource Engineering and Management · Vol. 6, Issue 3, 2019 · pp. 1–5 Read article
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Three Zone Distance Protection of Transmission Line Using MHO and Quadrilateral Characteristics
Abstract: To protect transmission line from faults 3-zone distance protection is widely used as it also provides backup protection. This study aims at simulating three-step protection using PSCAD software under different fault conditions in different zones. Also how relay malfunctions under presence of fault resistance. Finally, quadrilateral characteristic of relay is drawn which solves the problem of under-reach of relay due to fault resistance.Keywords: Distance protection, fault resistance, MHO characteristics, quadrilateral …
Published in Trends in Electrical Engineering · Vol. 9, Issue 1, 2019 · pp. 17–30 Read article