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Dissertations / Theses on the topic 'Contaminant Detection and Isolation'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Hoppe, Edward J. (Edward Jerzy). "Application of electric polarization to contaminant detection in soils." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=28461.

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A new field measurement technique for the determination of the lateral extent of subsurface contamination is proposed. It is applicable to tracing contaminant migration from underground storage tanks and waste disposal sites. The proposed approach involves adaptation of the time-domain reflectometry (TDR) concept and relies on the interraction of matter with an electric field. Analysis of the TDR data collected from soil-contaminant mixtures indicates the feasibility of a subsurface contaminant detection.<br>The proposed contaminant detection technique relies on matching an unknown TDR wavefor

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2

Kiepert, Joshua. "A wireless sensor data fusion framework for contaminant detection." [Boise, Idaho] : Boise State University, 2009. http://scholarworks.boisestate.edu/td/61/.

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3

Jain, Ishan. "Paper-Based Sensors for Contaminant Detection Using Surface Enhanced Raman Spectroscopy." Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/53946.

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Surface enhanced Raman spectroscopy (SERS) is highly promising analytical technique for trace detection of analytes. It is particularly well suited for environmental analyses due to its high sensitivity, specificity, ease of operation and rapidity. The detection and characterization of environmental contaminants, using SERS is highly related to the uniformity, activity and reproducibility of the SERS substrate. In this thesis, SERS substrates were produced by gold nanoparticle formation on wax patterned chromatography paper. In situ reduction of hydrogen tetrachloroaurate (gold precursor) b

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4

Yang, Xueyao. "Real-time Probabilistic Contaminant Source Identification and Model-Based Event Detection Algorithms." University of Cincinnati / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1385114685.

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5

McGowan, Veronica. "Detection, isolation and characterization of marine methanotrophs." Thesis, University of Warwick, 1992. http://wrap.warwick.ac.uk/73519/.

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In order to investigate the occurrence of methanotrophs in the marine environment, representative organisms have been isolated from seawater. As traditional methods for isolating and cultivating methanotrophs were found to be unsuccessful when applied to the marine environment, new techniques for methanotroph isolation were developed. These were used to enrich for methanotrophs in several marine areas. Two bacteria isolated from marine areas have been extensively characterized. Both isolates appear to be typical of Type I methanotrophs and have an absolute requirement for sodium chloride. The

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Aspinall, Steven Thomas. "The isolation, identification and detection of Clostridium difficile." Thesis, University of Central Lancashire, 1992. http://clok.uclan.ac.uk/20986/.

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The aim of the study was to determine the feasibility of an enzyme linked immunosorbant assay (ELISA) for detection of Clostridium difficile in broth cultures and faeces, to develop a new selective isolation medium and rapid identification test for Cl.difficile, to investigate the use of SDS-PAGE for typing isolates and to determine the presence of antibodies against Cl.difficile antigens in the sera of infected patients. Detection of C1.difficile antigens using ELJSA: Using a competitive ELISA, a methodology was developed to determine the feasibility of the test for detection of Cl.difficile

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7

Tan, Chee Pin. "Sliding mode observers for fault detection and isolation." Thesis, University of Leicester, 2002. http://hdl.handle.net/2381/30204.

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This thesis describes the use of a class of sliding mode observers for fault detection and isolation purposes. Existing work has shown that the equivalent output error injection term associated with the sliding mode observer, which represents the average value of the nonlinear switched term (which induces and maintains the sliding motion), if properly scaled, yields accurate reconstructions of actuator faults. Existing observer design methods generate a certain class of observer gains, but do not utilise all degrees of freedom. In this thesis, a new method, exploiting this freedom is presented

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8

FernaÌndez, Mariano. "Failure detection and isolation in decentralised multisensor systems." Thesis, University of Oxford, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260155.

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9

Wan, Abdul Aziz Wan Mohd Yusof Rahiman. "Fault detection and isolation : application to pipeline systems." Thesis, University of Manchester, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.498676.

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In this thesis, the development on Fault Detection and Isolation (FDI) and its application on the nonlinear pipeline based on an observer design techniques are presented. The main focus is to perform the analysis on pipeline systems characteristics and then, systematic approaches are designed for leak diagnosis system based on transient response. In order to monitor the transient response,three different types of observer designs are introduced in this work together with different aspects of leakage are discussed. Each of the presented observer design methods significantly reduce the required

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10

Stoeckle, Matthew Robert. "Fault detection, isolation, and recovery for autonomous parafoils." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/90612.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2014.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 121-124).<br>Autonomous precision airdrop systems are widely used to deliver supplies to remote locations. This aerial delivery method provides a safety and logistical advantage over traditional ground- or helicopter-based payload transportat

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11

Ampatzi, Christina. "Detection and Isolation of a Rogue Access Point." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-54825.

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Software-defined networking (SDN) is a technology that was developed a decade ago and has become apole of attraction for researchers due to its unique ability to distinguish the control plane from the data planeon network devices. With SDN, network security has the potential to evolve to a great extent. Manycompanies, large and small, are threatened by attacks with the ultimate goal of the attacker’s personal gain.One way for outsiders to enter is through Rogue Access Points (RAPs). RAPs are malicious devices thatare connected to the network and provide wireless connection to unauthorized devi

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12

Zhang, Ze. "Fault detection and isolation for linear dynamic systems." Thesis, Imperial College London, 2011. http://hdl.handle.net/10044/1/9086.

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As modern control systems and engineering processes become increasingly more complex and integrated, the consequences of system failures and faults can be disastrous environmentally and economically. This thesis considers the fault detection and isolation (FDI) problem for linear time-invariant (LTI) systems subject to faults, disturbances and model uncertainties. Firstly, a novel on-line approach to the robust FDI problem for linear discrete-time systems is proposed by using input/output measurement analysis over a finite estimation horizon. Upper and lower bounds on the fault signal are comp

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13

Brady, G. "Detection, isolation, and characterisation of a murine oncogene." Thesis, University of Sussex, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.372070.

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14

Ding, Xuejun. "Fault detection and isolation for railway vehicle suspensions." Thesis, University of Leeds, 2009. http://etheses.whiterose.ac.uk/11297/.

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The ability to detect and isolate component faults in a railway suspension system is important for improved train safety and maintenance. An undetected failure in the suspension systems can cause severe wheel-rail wear, reduce ride comfort, worsen passenger safety and increase unexpected maintenance costs. Existing fault detection methods are limited in several respects, such as effectiveness/sensitivity for fault detection, or robustness to external condition changes. This thesis investigates a model-less fault detection and isolation approach using cross correlation and/or relative variance

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15

Liu, Y. "Fault detection and isolation for wind turbine dynamic systems." Thesis, Liverpool John Moores University, 2018. http://researchonline.ljmu.ac.uk/8524/.

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This work presents two fault detection and isolation (FDI) approaches for wind turbine systems (WTS). Firstly, a non-linear mathematical model for wind turbine (WT) dynamics is developed. Based on the developed WTS mathematical model, a robust fault detection observer is designed to estimate system faults, so as to generate residuals. The observer is designed to be robust to system disturbance and sensitive to system faults. A WT blade pitch system fault, a drive-train system gearbox fault and three sensor faults are simulated to the nominal system model, and the designed observer is then to d

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16

Holmér, Viktor. "Hybrid Extended Isolation Forest : Anomaly Detection for Bird Alarm." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-254968.

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The Isolation Forest algorithm is a random forest based anomaly detection algorithm utilizing isolation to determine anomality of data. The Hybrid Isolation Forest and Extended Isolation Forest algorithms were independently developed to overcome two separate issues with the Isolation Forest algorithm. By combining these algorithms the Hybrid Extended Isolation Forest algorithm was proposed and evaluated with the goal of overcoming both issues at once. Bird Alarm is a system developed by Nordicstation for bird watchers. It allows bird watchers to create reports based on observations of birds in

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17

Levesque, Mario J. L. "Fault detection and isolation for the Bluebird test bed aircraft." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1993. http://handle.dtic.mil/100.2/ADA277979.

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18

Meseguer, Amela Jordi. "Integration Techniques of Fault Detection and Isolation Using Interval Observers." Doctoral thesis, Universitat Politècnica de Catalunya, 2009. http://hdl.handle.net/10803/52812.

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An interval observer has been illustrated to be a suitable approach to detect and isolate faults affecting complex dynamical industrial systems. Concerning fault detection, interval observation is an appropriate passive robust strategy to generate an adaptive threshold to be used in residual evaluation when model uncertainty is located in parameters (interval model). In such approach, the observer gain is a key parameter since it determines the time evolution of the residual sensitivity to a fault and the minimum detectable fault. This thesis illustrates that the whole fault detection proce

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19

Wagner, Benjamin. "Rotating Equipment Defect Detection Using the Algorithm of Mode Isolation." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/16230.

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Findings from a project involving rotating equipment defect detection using the Algorithm of Mode Isolation (AMI) are presented. The prototypical system evaluated is a rotating shaft, supported by hydrodynamic bearings at both ends, with one disk mounted to the shaft. Shaft cracks and bearing wear are the two equipment defects considered. An existing model of the prototypical system from the literature, termed the simplified model. is modified to simulate the presence of a transverse shaft crack at mid-span. This modified model is termed the standard model. Ritz series analysis, in conjunc

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20

Jingjing, Hao. "Distributed sensor fault detection and isolation over wireless sensor network." Doctoral thesis, Universite Libre de Bruxelles, 2017. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/254423.

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Wireless sensor networks (WSNs) can provide new methods for information gathering for a variety of applications. In order to ensure the network quality of service, the quality of the measurements has to be guaranteed. Distributed fault detection and isolation schemes are preferred to centralized solutions to diagnose faulty sensors in WSNs. Indeed the first approach avoids the need for a central node that collects information from every sensor node, and hence it limits complexity and energy cost while improving reliability.In the case of state estimation over distributed architectures, the sen

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21

Wagner, Benjamin B. "Rotating equipment defect detection using the algorithm of mode isolation." Available online, Georgia Institute of Technology, 2007, 2007. http://etd.gatech.edu/theses/available/etd-03302007-115410/.

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Thesis (Ph. D.)--Mechanical Engineering, Georgia Institute of Technology, 2008.<br>Dewey H. Hodges, Committee Member ; Olivier Bauchau, Committee Member ; Aldo A. Ferri, Committee Member ; Itzhak Green, Committee Member ; Jerry H. Ginsberg, Committee Chair.

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22

Ho, Nhut Tan 1974. "Failure detection and isolation for the Space Shuttle Main Engine." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/9909.

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23

Hwas, Abdulhamed. "Model-based fault detection and isolation techniques for wind turbines." Thesis, University of Strathclyde, 2013. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=25512.

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The main objective of the work of this thesis is to design model-based fault detection and isolation techniques for a large-scale wind turbine. A mathematical model of the 5MW wind turbine was developed; the model was sufficiently detailed to be used for simulation purposes. The stages of the modelling procedure were to divide the overall wind turbine system into appropriate sub-models suitable for separate modelling. Each sub-model was then presented and combined in order to obtain a completed non-linear wind turbine model. Two methods are proposed to calculate the gains of a proportional-int

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24

Duvenage, Wineen. "Detection and isolation of thermophilic acidophilic bacteria from fuit juices." Thesis, Stellenbosch : University of Stellenbosch, 2006. http://hdl.handle.net/10019.1/3016.

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Thesis (Msc Food Sc (Food Science))--University of Stellenbosch, 2006.<br>Fruit juices were until recently considered to only be susceptible to spoilage by yeasts, mycelial fungi and lactic acid bacteria. Spoilage by these organisms was prevented by the acidic pH of fruit juices and the heat-treatment applied during the hot-fill-hold process. Despite these control measures, an increasing number of spoilage cases of fruit juices, fruit juice products and acidic vegetables due to contamination by thermophilic acidophilic bacteria (TAB) have been reported. The genus Alicyclobacillus, containing T

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25

Krishnaswami, Vasanth. "Model based fault detection and isolation in nonlinear dynamic systems /." The Ohio State University, 1996. http://rave.ohiolink.edu/etdc/view?acc_num=osu148794218232319.

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26

Capitanu, Calin. "Fault Detection, Isolation and Recovery : Analysis of two scheduling algorithms." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-300128.

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Unmanned, as well as manned space missions have seen a high failure rate in the early era of space technology. However, this decreased a lot since technology advanced and engineers learnt from previous experiences and improved critical real time systems with fault detection mechanisms. Fault detection, isolation and recovery, nowadays, is generally available in every flying device. However, the cost of hardware can bottleneck the process of creating such a system that is both robust and responsive. This thesis analyses the possibility of implementing a fault detection, isolation and recovery s

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27

Astolfi, Giacomo. "Data-based design of fault detection and isolation (FDI) systems." Doctoral thesis, Università Politecnica delle Marche, 2013. http://hdl.handle.net/11566/242719.

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Lo scopo di questa tesi è la presentazione di un innovativo sistema di Fault Detection e Isolation (FDI) basato su un approccio data-driven. La scelta di utilizzare un approccio data-based è stata dettata dal fatto che, molto spesso, in applicazioni industriali, modelli dinamici del processo non sono disponibili o non sono particolarmente utili per scopi diagnostici. L’innovativo sistema FDI proposto combina le seguenti metodologie: Principal Component Analysis (PCA), Cluster Analysis e Pattern Recognition. Il risultato è quello che l’autore ha definito Fuzzy Fault Classifier (FFC). La combi

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28

MINNECI, MARCO. "DETECTION AND ISOLATION OF THE BACTERIAL SECOND MESSENGER (P)PPGPP." Doctoral thesis, Università degli Studi di Milano, 2021. http://hdl.handle.net/2434/840186.

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This work has been carried out within the framework of the ERC funded project ERACHRON (Eradicating chronic infection), directed to the study of the chemical biology of bacterial persisters. Persisters are dormant phenotypic variants that are present in small amount in microbial populations. This phenotype shows high tolerance to antibiotics and for this reason it plays a key role in chronic infections. Indeed, after antibiotic treatment kills most of the bacterial population, persisters surviving the treatment can revert to the active phenotype, resuming growth and restoring the original, ant

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29

Do, Van Long. "Sequential detection and isolation of cyber-physical attacks on SCADA systems." Thesis, Troyes, 2015. http://www.theses.fr/2015TROY0032/document.

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Cette thèse s’inscrit dans le cadre du projet « SCALA » financé par l’ANR à travers le programme ANR-11-SECU-0005. Son objectif consiste à surveiller des systèmes de contrôle et d’acquisition de données (SCADA) contre des attaques cyber-physiques. Il s'agit de résoudre un problème de détection-localisation séquentielle de signaux transitoires dans des systèmes stochastiques et dynamiques en présence d'états inconnus et de bruits aléatoires. La solution proposée s'appuie sur une approche par redondance analytique composée de deux étapes : la génération de résidus, puis leur évaluation. Les rési

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30

Kuehner, Joel. "Implementation of an influence matrix approach to failure detection and isolation." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0020/MQ54631.pdf.

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31

Mazars, Emmanuel Francis Marie. "Robust fault detection and isolation for linear time-invariant dynamic systems." Thesis, Imperial College London, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.437363.

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32

Maleki, Sepehr. "A geometric approach to fault detection and isolation in multidimensional systems." Thesis, University of Southampton, 2015. https://eprints.soton.ac.uk/379271/.

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In this thesis the problem of fault detection and isolation for two subclasses of multidimensional systems, i.e., 3-D systems and repetitive processes is investigated by extending the geometric approach and notions of input containing conditioned invariants developed and introduced for standard 1-D linear systems to be applicable in multidimensional systems. The problem is investigated by designing an asymptotic observer that asymptotically reconstructs the system state. In case of a failure, the observer continues to reconstruct the state normally, however, the system produces a wrong state r

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33

Frost, Mark Stuart. "Multifunctional nanomaterials designed for the detection and removal of priority contaminant substances from waste and drinking water." Thesis, Manchester Metropolitan University, 2015. http://e-space.mmu.ac.uk/617333/.

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Heavy metal pollution in waste water and drinking water is a growing concern, with the European Commission producing the Water Framework Directive (WFD) and Drinking Water Directive (DWD) to set ‘acceptable’ levels for priority chemicals in water systems. Taking into account the innovative work being carried out in the area of nanosensors, this research has produced several methods for the quantitative analysis of some aqueous metal ions. This study explored the use of citrate functionalised Au and Ag NPs and CuS nanoclusters Citrate functionalised Au and Ag NPs were synthesised to develop for

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34

Suda, Jessica Lynn. "Misfire-Fault Classification for Future On-Board Diagnostics III Vehicles." OpenSIUC, 2018. https://opensiuc.lib.siu.edu/theses/2372.

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Current OBD-II vehicle systems detect misfires by monitoring slight variances of crankshaft acceleration throughout power-strokes of each of the engine’s cylinders. If the PCM determines that the acceleration of the engine’s crankshaft is inappropriate, it concludes a misfire is detected. However, after this misfire is detected, the technician still needs to diagnose (isolate) the root-cause. Diagnosis is no easy task, especially with several potential subsystems that could be at fault: fuel injection, air-intake, sparkignition, and engine-mechanical. With this being said, it is difficult for

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35

Mok, Hing-tung. "Online fault detection and isolation of nonlinear systems based on neurofuzzy networks." Click to view the E-thesis via HKUTO, 2008. http://sunzi.lib.hku.hk/hkuto/record/B39794064.

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Mok, Hing-tung, and 莫興東. "Online fault detection and isolation of nonlinear systems based on neurofuzzy networks." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2008. http://hub.hku.hk/bib/B39794064.

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Patel, Vijaykumar Chhaganlal. "Modelling and intelligent fault detection and isolation of aero gas turbine engines." Thesis, University of Sheffield, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.286615.

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Hughes, J. d'A. "Viruses of the Araceae and Dioscorea species : Their isolation, characterization and detection." Thesis, University of Reading, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375063.

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Paterson, G. E. "The use of monoclonal antibodies in the isolation and detection of Salmonella." Thesis, University of Reading, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233156.

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Williamson, Walton R., Jason L. Speyer, and Charles H. Jones. "Detection and Isolation of Instrumentation Failures Applied to GPS and Inertial Navigation." International Foundation for Telemetering, 2005. http://hdl.handle.net/10150/604894.

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ITC/USA 2005 Conference Proceedings / The Forty-First Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2005 / Riviera Hotel & Convention Center, Las Vegas, Nevada<br>During flight tests and during post-processing of flight data, a need exists to validate that all sensors are working properly and that data is valid after experimentation. Analytic redundancy methods enable data validation using multiple, dissimilar instruments processed through the vehicle dynamic system model. A design methodology is presented through which the designer chooses the instr

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Md, Kamal Mahanijah. "Intelligent fault detection and isolation for proton exchange membrane fuel cell systems." Thesis, Liverpool John Moores University, 2014. http://researchonline.ljmu.ac.uk/4574/.

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This work presents a new approach for detecting and isolating faults in nonlinear processes using independent neural network models. In this approach, an independent neural network is used to model the proton exchange membrane fuel cell nonlinear systems using a multi-input multi-output structure. This research proposed the use of radial basis function network and multilayer perceptron network to perform fault detection. After training, the neural network models can give accurate prediction of the system outputs, based on the system inputs. Using the residual generation concept developed in th

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Pallo, Vicki. "Quarantining the criminal isolation in early British literature of crime and detection /." Diss., Online access via UMI:, 2009.

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Siegle, Felix. "Fault detection, isolation and recovery schemes for spaceborne reconfigurable FPGA-based systems." Thesis, University of Leicester, 2016. http://hdl.handle.net/2381/37521.

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This research contributes to a better understanding of how reconfigurable Field Programmable Gate Array (FPGA) devices can safely be used as part of satellite payload data processing systems that are exposed to the harsh radiation environment in space. Despite a growing number of publications about low-level mitigation techniques, only few studies are concerned with high-level Fault Detection, Isolation and Recovery (FDIR) methods, which are applied to FPGAs in a similar way as they are applied to other systems on board spacecraft. This PhD thesis contains several original contributions to kno

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Mohan, Rathish. "Algorithmic Optimization of Sensor Placement on Civil Structures for Fault Detection and Isolation." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1353156107.

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Svärd, Carl. "Methods for Automated Design of Fault Detection and Isolation Systems with Automotive Applications." Doctoral thesis, Linköpings universitet, Fordonssystem, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-77073.

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Fault detection and isolation (FDI) is essential for dependability of complex technical systems. One important application area is automotive systems, where precise and robust FDI is necessary in order to maintain low exhaust emissions, high vehicle up-time, high vehicle safety, and efficent repair. To achieve good performance, and at the same time minimize the need for expensive redundant hardware, model-based FDI is necessary. A model-based FDI-system typically comprises fault detection by means of residual generation and residual evaluation, and finally fault isolation. The overall objectiv

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Schwarz, Thoralf A. "Uncertainty Analysis of a Fault Detection and Isolation Scheme for Multi-Agent Systems." Thesis, KTH, Reglerteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-104013.

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Diagnostic techniques in model-based fault detection and isolation approaches are often based on residuals. If the residuals become greater than a certain threshold then an alarm can be triggered. However, disturbances, such as those caused by model uncertainty, affect the behavior of the residuals and therefore the performance of the diagnostic system. Fault detection becomes a matter of security when applied in multi-agent systems, since their distributed nature offers adversaries possibilities to attack the system. This thesis considers disturbances caused by model uncertainty which is ofte

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Kline, Paul A. "Fault detection and isolation for integrated navigation systems using the global positioning system." Ohio : Ohio University, 1991. http://www.ohiolink.edu/etd/view.cgi?ohiou1183731476.

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West, Michael James. "The use of bacteriophage for the detection, isolation and characterisation of the Pseudonocardiaceae." Thesis, University of Liverpool, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.284148.

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Shreffler, Richard C. (Richard Charles). "Failure detection, isolation and mitigation for a spacecraft solid fuel reaction control system." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/74990.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 84-85).<br>Future unmanned space missions will require increased redundancy to failure. One such mission is the Mars Sample Return, intended to return a sample of Martian soil, rock and atmosphere to Earth for greater study. A key element of the Mars Sample Return mission is the Mars Ascent Vehicle, which is designed to carry the sample container from the surface into Mars orbit, where the sample will be transferred to

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Banga, Mainak. "Partition based Approaches for the Isolation and Detection of Embedded Trojans in ICs." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/34924.

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This thesis aims towards devising a non-destructive testing methodology for ICs fabricated by a third party manufacturer to ensure the integrity of the chip. With the growing trend of outsourcing, the sanity of the final product has emerged to be a prime concern for the end user. This is especially so if the components are to be used in mission-critical applications such as space-exploration, medical diagnosis and treatment, defense equipments such as missiles etc., where a single failure can lead to a disaster. Thus, any extraneous parts (Trojans) that might have been implanted by the third p

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