Digital Commons Network^™

Multiple Security Domain Model Of A Vehicle In An Automated Vehicle System, Uday Ganesh Kanteti

Masters Theses

"This thesis focuses on the security of automated vehicle platoons. Specifically, it examines the vulnerabilities that occur via disruptions of the information flows among the different types of sensors, the communications network and the control unit in each vehicle of a platoon. Multiple security domain nondeducibility is employed to determine whether the system can detect attacks. The information flows among the various domains provide insights into the vulnerabilities that exist in the system by showing if an attacker’s actions cannot be deduced. If nondeducibility is found to be true, then an attacker can create an undetectable attack. Defeating nondeducibility requires …

Multiple Security Domain Nondeducibility Air Traffic Surveillance Systems, Anusha Thudimilla

Masters Theses

"Traditional security models partition the security universe into two distinct and completely separate worlds: high and low level. However, this partition is absolute and complete. The partition of security domains into high and low is too simplistic for more complex cyber-physical systems (CPS). Absolute divisions are conceptually clean, but they do not reflect the real world. Security partitions often overlap, frequently provide for the high level to have complete access to the low level, and are more complex than an impervious wall. The traditional models that handle situations where the security domains are complex or the threat space is ill …

Well Log Interpretation And 3d Reservoir Property Modeling Of Maui-B Field, Taranaki Basin, New Zealand, Aziz Mennan

Masters Theses

"Maui-B is one of the largest hydrocarbon-producing fields in the Taranaki Basin. Many previous works have estimated reservoir volume. This study uses 3D property modeling, which is one of the most powerful tools to characterize lithology and reservoir fluids distribution through the field. This modeling will help in understanding the reservoir properties and enhancing the production by selecting the best location for future drilling candidates. In this study, 3D seismic, core, and well log data were used to build and define a structural model, facies analysis, and petrophysical parameters. After well log interpretation and petrophysical parameter calculations, each parameter was …

Evaluation Of Preformed Particle Gel As A Diverting Agent For Acidizing, Bo Wei

Masters Theses

"Preformed particle gels (PPGs) have been developed and successfully used to improve conformance in heterogeneous reservoirs. However, no research has been reported to show their potential diverting applications in acidizing because of their unknown performance in this process. This work targets on evaluating the potential of PPGs to be used as diverting agents and factors influencing the diverting performance.

The swelling properties of three types of PPGs (PPG #1, #2, and #3) were first studied in brine and acid, including the swelling kinetics and equilibrium, PPG strength, and deswelling performance. Effects of different brine concentration, acid concentration, and temperature were …

Development And Implementation Of Star Tracker Based Attitude Determination, Casey Grant Smith

Masters Theses

"As interest in nanosatellites grows within the university community, the demand for inexpensive, space-grade hardware grows as well. Star trackers can be a luxury item for some spacecraft and therefore are often not considered due to their cost. Ideally, a star tracker could be built using inexpensive parts so long as the software is available. Unlike many other attitude determination instruments, star trackers are renowned for their high accuracy, yielding accurate and precise attitude estimates. However, development of this software can be overwhelming for the university settling, especially when multiple missions are on hand. If these instruments were readily available …

Overview Of Co₂ Leakage Problems And Sealants For Co₂ Leakage Remediation, Shudai Peng

Masters Theses

"Excessive Carbon Dioxide (CO₂) emission has become a serious issue and caused lots of environmental problems. Carbon Capture and Storage (CCS) program has been developed to reduce the CO₂ content in the atmosphere. CO₂ storage has been targeted mainly on depleted oil or gas reservoirs and deep saline aquifers. However, leakage could occur through wellbores, cap rocks, formation faults, and fractures during and after CO₂ injection. To minimize the risk, different types of sealants have been investigated to prevent CO₂ leaks. The aim of this thesis is to provide a comprehensive review of the materials which could be used as …

Characterizing Groundwater Flow At Fort Leonard Wood Using Universal Cokriging With Trend Removal, Rachel Mae Uetrecht

Masters Theses

"Groundwater elevation interpolation is necessary for the prediction of groundwater flow direction and contaminant transport. Kriging is a geostatistical tool commonly used to interpolate groundwater elevation. Kriging requires a relatively large number of monitoring wells at the site of interest. The variogram model is a crucial element to the kriging equations. The variogram modelling process is an iterative procedure that is often very time consuming. This study presents a literature based approach that provides a point of departure for the variogram modelling process as well as other kriging parameters. A literature database is developed in order to provide insight and …

Preformed Particle Gel Conformance Control Performance In Partially Opened Fracture And Fully Opened Fracture Systems, Ghith Ali Ahmed Biheri

Masters Theses

"Conformance problems, such as reservoir heterogeneity can result in a significant decrease in oil recovery, and an excessive water production. Millimeter particle gels (PPG) have been used as conformance control agents to plug open fractures, however, very little research has been conducted to study their ability to plug partially open fractures. This research studies the ability of the PPG to plug partially open fracture to improve conformance and increase recovery in oil reservoirs. Rectangular Sandstone cores were used to conduct the experiments. Fracture widths used include 2, 3.5, 5 mm. For each fracture width, four gel strengths were used; gel …

Sparse Emission Source Microscopy For Rapid Emission Source Imaging, Ling Zhang

Masters Theses

"In Paper I, Sparse Emission Source Microscopy (ESM) methodology will be introduced and discussed for the localization of major EMI radiation sources in complex and large systems. Traditional ESM method takes abundant and uniformly-distributed scanning points on the scanning plane using a robotic system, which can provide high-quality source images but consumes too much time. This section presents a sparse and nonuniform sampling technique for ESM, which is more time-efficient in identifying major radiation sources, even though the image quality is sacrificed. The feasibility of sparse sampling is mathematically proved, and it is shown that increasing number of points increases …

Diffusion And Mechanical Characterization Of Nanoparticle-Enabled Diffusion Controlled Materials, Joseph Louis Volpe

Masters Theses

"Nanoparticle-enabled diffusion control has been shown to rapidly refine multiphase microstructures during slowly cooled casting. This thesis characterizes the diffusion and the mechanical properties of nanoparticle-enabled diffusion controlled materials. To characterize diffusion properties, in situ characterization is performed to verify the nanoparticle enabled diffusion control mechanism. Materials with nanoparticles were observed to decrease the diffusion coefficient by at least one order of magnitude under similar melting conditions as compared to materials without nanoparticles. To understand mechanical properties, the nanoparticles that assembled at the growing interface were characterized under mechanical tensile stress. Nanoparticle-enabled interfaces were observed to improve the interface bond …

Classification Of Basal Cell Carcinoma Using Telangiectatic Vessels And Machine Learning, Hemanth Yadav Aradhyula

Masters Theses

“Basal cell carcinoma (BCC) is one of the most common types of skin cancer in the United States. Early detection of BCC by noninvasive techniques can decrease delay in treatment and save cost. A recent study estimated that 5.4 million cases of non-melanocytic skin cancer (NMSC) occur each year in the US. BCC accounts for 50% of NMSC cases. Telangiectasia, which appears in most BCCs is an important feature for identification of BCC for an automatic diagnostic system. In this thesis, three methods for detection of telangiectasia present in dermoscopy lesion image (DI) were proposed. Detected telangiectasia in DI was …

A Study Of The Potential Applications Of Am241, And Determining The Feasibility Of Using Gamma Spectroscopy For Future Physical Validation, Eric A. Feissle

Masters Theses

“Am241 is typically produced via Pu241 decay in a uranium fueled reactor. Presence of Am241 can be used as the age estimation tool for spent fuel, which is a focus of this thesis along with the interest of the measurement and the ratio of production rates of Am241’s activation products; Americium-242 and its first excited state of Americium-242m. MCNP models of the core and BEGe 3825 detector were built. These models were compared with established and physical measurements of gamma/x-ray standards that were available at the reactor. Thermal fluxes at 200 kW for potential foils centered in the source holder …

An Investigation Of Borax For Sealing Inflow From Berea Sandstone, Tri-Tris Bao Nguyen

Masters Theses

"Well inflow control is a major challenge for the oil and gas industry. Erle Haliburton revolutionized well inflow control with his patent for cementing oil wells in 1921. Soon after, cement became the accepted material to establish well integrity and has been ever since. Cement is used in all phases of the well life cycle, and it is expected to hold indefinitely once set. Yet based on the nature of cement and the placement techniques, flow pathways may develop from improper cementing jobs or from cement degradation over time. Well integrity is especially crucial for wellbore plugging and abandonment, since …

Phytoforensics: Applications In Vapor Intrusion Assessment, Jordan Lee Wilson

Doctoral Dissertations

"Vapor intrusion (VI) occurs when contaminants in the vapor phase migrate in the shallow subsurface and enter buildings through cracks, seams, and gaps and has been recognized as a serious human-health threat as occupants are exposed to potentially harmful concentrations over long periods of time. The VI pathway has recently (2017) been identified as a primary exposure pathway and implemented into the Hazard Ranking System for inclusion on the Nation Priorities List. However, assessing VI and human exposure is not simple and current methods are time-, cost-, and labor-intensive; intrusive; and temporally and spatially variability. Trees are ideal candidates for …

Long-Period Fiber Grating Corrosion Sensors For Life-Cycle Monitoring And Assessment Of Reinforced Concrete Structures, Yizheng Chen

Doctoral Dissertations

"This study aims to: (1) explore, develop, calibrate and validate Fe-C coated, long period fiber grating (LPFG) sensors for short-term mass loss measurement of the Fe-C coating; (2) develop, calibrate, and validate steel tube-encapsulated, fiber optic probes and LPFG sensors for long-term mass loss detection of the steel tube; (3) correlate the corrosion process of packaging metal materials with that of steel bars in direct contact with the packaged probe or sensor except for a thin insulation tape; and (4) apply both types of corrosion sensors into reinforced concrete (RC) structures for reinforcing bar corrosion monitoring and structural condition assessment. …

John Henry Wigmore And The Rules Of Evidence: The Hidden Origins Of Modern Law (Book Review), Michael Ariens

Faculty Articles

No abstract provided.

Invisible, But Not Transparent: An Analysis Of The Data Privacy Issues That Could Be Implicated By The Widespread Use Of Connected Vehicles, Emilio R. Longoria

Faculty Articles

In 2015, the U.S. Department of Transportation began the first phase of its 50-month program to introduce connected vehicles to American roadways. While many have focused on the potential traffic safety benefits wide-scale implementation of connected vehicle technology could ultimately bring about, few have discussed the potentially serious data privacy issues that connected vehicles could create. Although few know the exact technological capabilities connected vehicles will have, it is likely that they will be designed to regularly transmit highly sensitive private information over a relatively unsecure network. This paper analyzes the potential privacy issues that could be implicated by such …

The Cerebral Hercules And The Bankruptcy Hydra: How Judge Schermer Slayed A Multi-Headed Monster While Deep In The Heart Of Texas (And What Any Of This Lone Star State-Grecian Hero Analogy Has To Do With Just A Little Bit Of Yiddish), Charles E. Rendlen Iii, Abigail B. Willie

Faculty Articles

Part I is written from the perspective of Judge Rendlen as a colleague of Judge Schermer and discusses Judge Schermer's contributions as a mediator in the Chapter 11 mega-case of In re U.S. Fidelis, Inc. ("U.S. Fidelis").' Part II is written from the perspective of Mrs. Willie, who has known Judge Schermer as her professional mentor and personal friend for more than a decade, and discusses how the U.S. Fidelis mediation is a reflection of Judge Schermer, the man.

The Social Origins Of Innovation Failures, Laura Pedraza-Farina

SMU Law Review

This Article identifies and describes a crucial source of innovation failure— linked not to the market but to the structure of social relations that underlie market transactions—that this Article terms social network innovation failures. This source of innovation failure, however, has been obscured by two assumptions in traditional market failure models of innovation. First, market failure models frequently assume that public, non-secret knowledge (or information) will flow freely among communities of innovators and be put to its optimal use. Second, market failure models pay little attention to how good ideas emerge, assuming that good ideas will follow from investment in …

Implicit Bias And Prejudice In Mediation, Carol Izumi

SMU Law Review

Mediators aspire and endeavor to meet their ethical duty of “neutrality” in mediation. Yet their ability to actually conduct mediations without bias, prejudice, or favoritism toward any party is extraordinarily difficult, if not impossible. Research shows that unconscious mental processes involving stereotypes and attitudes affect our judgments, perceptions, and behavior toward others. Implicit bias, the automatic association of stereotypes and attitudes with social groups, may produce discriminatory responses toward parties despite a mediator’s best efforts at creating an outwardly even-handed process. Even the most well-intentioned and egalitarian mediators must actively engage in bias reduction strategies to mitigate prejudice in mediation.

Signals Of Opportunity Geolocation Methods For Urban And Indoor Environments, T. O. Mansfield, B. V. Ghita, M. A. Ambroze

School of Engineering, Computing and Mathematics

No abstract provided.

Numerical Analysis Of The Thermomechanical Behaviour Of An Integrally Water-Heated Tool For Composite Manufacturing, Rzgar Abdalrahman, Stephen Grove, Adam Kyte, Md Jahir Rizvi

School of Engineering, Computing and Mathematics

No abstract provided.

Reduction Of Polymer Residue On Wet–Transferred Cvd Graphene Surface By Deep Uv Exposure, A. Suhail, K. Islam, B. Li, D. Jenkins, G. Pan

School of Engineering, Computing and Mathematics

No abstract provided.

Location Based Transmission Using A Neighbour Aware With Optimized Eifs Mac For Ad Hoc Networks, Jims Marchang, Bogdan Ghita, David Lancaster

School of Engineering, Computing and Mathematics

No abstract provided.

Experimental Methodology For The Quantification Of Crack Tip Plastic Zone And Shape From The Analysis Of Displacement Fields, J. M. Vasco-Olmo, Fa Diaz, M. N. James, C. J. Christopher, E. A. Patterson

School of Engineering, Computing and Mathematics

The current work presents a novel methodology for the experimental quantification of the crack tip plastic zone during fatigue crack growth. This methodology is based on the application of yield criteria to estimate the area and the shape of the plastic zone at the crack tip. The implementation of the proposed methodology requires the use of strain maps calculated from the differentiation of the displacement fields obtained by digital image correlation (DIC). Stress maps can subsequently be inferred from both von Mises and Tresca yield criteria. Fatigue tests and associated measurements of plastic zone size and shape were conducted on …

Modal Testing Of Offshore Rock Lighthouses Around The British Isles, James Brownjohn, Alison Raby, James Bassitt, Emma Hudson, Alessandro Antonini

School of Engineering, Computing and Mathematics

No abstract provided.

M2m Application Service Provision: An Autonomous And Decentralised Approach, M Steinheimer, U Trick, W Fuhrmann, B Ghita, G Frick

School of Engineering, Computing and Mathematics

This publication presents a novel concept for autonomous and decentralised M2M application service provision. The functional architecture of the approach is introduced as well as a detailed description of the system structure and process for application creation. Furthermore, this publication describes details about the proposed process for decentralised M2M application service management and formal description of M2M application services as well as independent validation of M2M application service configurations. Finally, the prototype M2M system realising the proposed concept is introduced and several scenarios are evaluated.

Performance Analysis Of Wmn Routing Protocols For Disaster Networks, Ap Tchinda, G. Frick, U. Trick, A. Lehmann, Ap Tchinda, B. Ghita

School of Engineering, Computing and Mathematics

No abstract provided.

Oes Task 10 Wec Modelling Verification And Validation, F Wendt, Y-H Yu, K Nielson, K Ruehl, T Bunnik, I Touzon, Bw Nam, Js Kim, K-H Kim, Ce Janson, K-Rg Jakobsen, S Crowley, L Vega, K Rajagopalan, T Mathai, D Greaves, Ej Ransley, P Lamont-Kane, W Sheng, R Costello, B Kennedy, S Thomas, P Heras, Hb Bingham, A Kurniawan, Mm Kramer, D Ogden, S Girardin, A Babarit, D Steinke, A Roy, S Beatty, Q Xu, Y Li

School of Engineering, Computing and Mathematics

This is the first joint reference paper for the Ocean Energy Systems (OES) Task 10 Wave Energy Converter modeling verification and validation group. The group is established under the OES Energy Technology Network program under the International Energy Agency. OES was founded in 2001 and Task 10 was proposed by Bob Thresher (National Renewable Energy Laboratory) in 2015 and approved by the OES Executive Committee EXCO in 2016. The kickoff workshop took place in September 2016, wherein the initial baseline task was defined. Experience from similar offshore wind validation/verification projects (OC3-OC5 conducted within the International Energy Agency Wind Task 30) …

Buoy Geometry And Its Influence On Survivability For A Point Absorbing Wave Energy Converter: Scale Experiment And Cfd Simulations, J Engström, L Sjökvist, M Göteman, M Eriksson, M Hann, Ej Ransley, D Greaves, M Leijon

School of Engineering, Computing and Mathematics

For wave energy to be an economically viable energy source, the technology has to withstand power levels during storms that can be close to 50 times higher than during normal operating conditions [1], and withstand many years of wear. The impact of high wave loads is studied not only within the field of wave energy, but has long been a subject of study for ships, platforms and other offshore structures. To model the force on the device under extreme and/or overtopping waves is a difficult task. Experiments are expensive and difficult to implement, and numerical methods are either very computationally …