Project And Risk Management: A Systematic Approach, 2010 Old Dominion University
Project And Risk Management: A Systematic Approach, Baqer Alali, C. Ariel Pinto, Andreas Tolk, Rafael Landaeta
Engineering Management & Systems Engineering Faculty Publications
The main purpose of this paper is to discuss three related topics of project management, systems management, and risk management. The issue that would be addressed in this paper is how risks are addressed in project and systems management, and how risks are propagated between projects and systems. A framework is proposed to overcome the problem of risk propagation from project to the systems. It was shown that the proposed framework can be deployed to existing risk management process with reasonable interventions (e.g. process prescribed by PMI). Finally a proof-of-concept application shows potential of the framework for various types of …
Development Of A Framework To Evaluate Human Risk Towards Sustainable Risk Management, 2010 Old Dominion University
Development Of A Framework To Evaluate Human Risk Towards Sustainable Risk Management, Ra'ed M. Jaradat, Rani A. Kady, C. Ariel Pinto
Engineering Management & Systems Engineering Faculty Publications
Risk managers are constantly faced with the challenge of making decisions at various levels of their organizations. One of the challenges, which often times is unavoidable, lies in assigning a monetary value to human risks. Such challenge necessitates engineering managers to make educated decisions on the level of risk that the organizations and businesses should accept when it comes to human. The purpose of this study is to suggest a suitable framework that captures this aspect of engineering Risk Management in order to make rational and sustainable decisions about such assessed risk. This will be accomplished by exploring the tools, …
A Continuous Regression Function For The Delaunay Calibration Method, 2010 Missouri University of Science and Technology
A Continuous Regression Function For The Delaunay Calibration Method, Francesco Corona, Elia Liitiäinen, Amaury Lendasse, Roberto Baratti, Lorenzo Sassu
Engineering Management and Systems Engineering Faculty Research & Creative Works
The Delaunay Tessellation and Topological Regression is a Local Simplex Method for Multivariate Calibration. the Method, developed within Computational Geometry, Has Potential for Applications in Online Analytical Chemistry and Process Monitoring. This Study Proposes a Novel Approach to Perform Prediction and Extrapolation using Delaunay Calibration Method. the Main Property of the Proposed Extension is the Continuity of the Estimated Regression Function Also Outside the Calibration Domain. to Support the Presentation, an Application in Estimating the Aromatic Composition in Light Cycle Oil by Near Infrared Spectroscopy is Discussed. © 2009 Ifac.
The Development And Application Of A Novel Free-Damage Fracturing Fluid (Ph<2), 2010 Missouri University of Science and Technology
The Development And Application Of A Novel Free-Damage Fracturing Fluid (Ph<2), Jin Zhang, Yan Zhang, Yongfu Wu, Xiuqing He, Xinzhu Zhang
Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
At present, water-Based fracturing fluid systems are mainly polymer (macromolecule) and visco-elastic surfactant (micro molecule). Because of polymer properties and incomplete gelout, the damage to matrices and conductivity of artificial fractures will be inevitable. the surfactant-Based fracturing fluid system is a micro-molecule system not to damage artificial fractures. However, it is difficult to eliminate the damages from rock debris moving and clay swelling information. a novel free-damage fracturing fluid system (FDFF), a cationic surfactant derived from a long chain fatty acid, has been developed and applied in Daqing oil field. FDFF can crosslink in a wide range from a strong …
Alkyl Polyglycoside/1-Naphthol Formulations With Ultra-Low Interfacial Tensions Against N-Octane For Enhanced Oil Recovery, 2010 Missouri University of Science and Technology
Alkyl Polyglycoside/1-Naphthol Formulations With Ultra-Low Interfacial Tensions Against N-Octane For Enhanced Oil Recovery, Stefan Iglauer, Yongfu Wu, Patrick Shuler, Yongchun Tang, William Goddard
Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
We present Alkyl polyglycoside (APG)/1-naphthol formulations which show ultra-low interfacial tensions (IFT) against n-octane. We demonstrate that 1-naphthol is very efficient as a cosolvent in terms of reducing IFT. These formulations are therefore potentially suitable as agents for enhanced oil recovery (EOR). an increasing APG concentration strongly increased viscosity, and the formulations showed shear-thinning behavior. in a core flood EOR test we showed that this type of formulation significantly increased oil production. © 2010, European Association of Geoscientists and Engineers.
Effect Of Phosphorus On Cleavage Fracture In Κ-Carbide, 2010 Missouri University of Science and Technology
Effect Of Phosphorus On Cleavage Fracture In Κ-Carbide, N. I. Medvedeva, Ryan A. Howell, David C. Van Aken, Julia E. Medvedeva
Materials Science and Engineering Faculty Research & Creative Works
To understand the origin of cleavage fracture which dominates in Fe(Mn)-Al-C alloys at a high phosphorus concentration, we performed first-principles study of the phosphorus effect on ideal cleavage energy and critical stress in κ-carbide, Fe3 AlC, a precipitate in the austenitic alloys. We find that phosphorus has higher solubility in Fe3 AlC than in γ-Fe and sharply reduces the cleavage characteristics of κ-carbide. We show that strong anisotropy of the Fe-P bonds in Fe3 (Al,P) C under tensile stress, leads to the appearance of large structural voids and may facilitate crack nucleation.
Novel Dynamic Representation And Control Of Power Systems With Facts Devices, 2010 Missouri University of Science and Technology
Novel Dynamic Representation And Control Of Power Systems With Facts Devices, Shahab Mehraeen, Jagannathan Sarangapani, Mariesa Crow
Electrical and Computer Engineering Faculty Research & Creative Works
FACTS devices have been shown to be useful in damping power system oscillations. However, in large power systems, the FACTS control design is complex due to the combination of differential and algebraic equations required to model the power system. In this paper, a new method to generate a nonlinear dynamic representation of the power network is introduced to enable more sophisticated control design. Once the new representation is obtained, a back stepping methodology for the UPFC is utilized to mitigate the generator oscillations. Finally, the neural network approximation property is utilized to relax the need for knowledge of the power …
Design Techniques To Improve Time Dependent Dielectric Breakdown Based Failure For Cmos Circuits, 2010 California Polytechnic State University, San Luis Obispo
Design Techniques To Improve Time Dependent Dielectric Breakdown Based Failure For Cmos Circuits, Emanuel S. Tarog
Master's Theses
This project investigates the failure of various CMOS circuits as a result of Time Dependent Dielectric Breakdown (TDDB) and explores design techniques to increase the mean time to failure (MTTF) of large-scale circuits. Time Dependent Dielectric Breakdown is a phenomenon where the oxide underneath the gate degrades as a result of the electric field in the material. Currently, there are few well documented design techniques that can increase lifetime, but with a tool chain I created called the MTTF Analyzing Program, or MAP, I was able to test circuits under various conditions in order to identify weak links, discover relationships, …
The Design And Manufacture Of A Light Emitting Diode Package For General Lighting, 2010 California Polytechnic State University, San Luis Obispo
The Design And Manufacture Of A Light Emitting Diode Package For General Lighting, Michael S. Krist
Master's Theses
Lighting technologies have evolved over the years to become higher quality, more efficient sources of light. LEDs are poised to become the market standard for general lighting because they are the most power efficient form of lighting and do not contain hazardous materials. Unfortunately, LEDs pose unique problems because advanced thermal management is required to remove the high heat fluxes generated by such relatively small devices. These problems have already been overcome with complex packaging and exotic materials, but high costs are preventing this technology from displacing current lighting technologies.
The purpose of this study is to develop a low-cost …
Membranes For Periodontal Regeneration: From Commercially Available To Spatially Designed And Functionally Graded Materials, 2010 University of Alabama at Birmingham
Membranes For Periodontal Regeneration: From Commercially Available To Spatially Designed And Functionally Graded Materials, Marco Cicero Bottino
All ETDs from UAB
The aging of the global population will lead to a considerable increase in the number of surgical and restorative procedures related to oral rehabilitation or periodontal regeneration. Periodontitis is one of the most aggressive pathologies that concern the integrity of the periodontal system that can lead to the destruction of the periodontium. Guided tissue and guided bone regeneration (GTR/GBR) have been used for the repair and regeneration of periodontal tissues by utilizing an occlusive membrane.The goal of this dissertation is to advance the knowledge in the area of periodontal regeneration by investigating the properties of a commercially available freeze-dried collagen-based …
Optical Mapping Of The Interactions Between Cardiac Geometry And Electrical Activity, 2010 University of Alabama at Birmingham
Optical Mapping Of The Interactions Between Cardiac Geometry And Electrical Activity, Elliot B. Bourgeois
All ETDs from UAB
In healthy hearts, the synchronized spread of electrical activation drives contraction. To investigate the role of cardiac geometry in modulating normal and abnormal electrical rhythms, we stained cardiac tissues with a fluorescent, voltage sensitive dye and imaged activation patterns with fast video cameras (optical mapping). This work is presented in three projects. Computer modeling has shown that conduction velocity increases when fibers are bowed toward the oncoming wavefront and decreases when fibers are bowed in the opposite direction. In the first project, cultured monolayers of cardiac myocytes were optically mapped to experimentally verify the theoretical effect of fiber curvature on …
Characterization Of Explanted Endovascular Stents: A Study Of In-Vivo Corrosion And The Role Of Vascular Calcification In Stent Fracture, 2010 University of Alabama at Birmingham
Characterization Of Explanted Endovascular Stents: A Study Of In-Vivo Corrosion And The Role Of Vascular Calcification In Stent Fracture, Dina Halwani
All ETDs from UAB
The electrochemical and mechanical stability of endovascular stents in-vivo is essential for their biocompatibility. Limited information is available regarding the condition of stents following interaction with vascular tissue, as a result, twenty seven stented vessels containing 45 stents (33 bare metal and 12 drug eluting) were retrieved during autopsy and vascular surgery. The stent/tissue components were carefully separated using a rigorous tissue dissolution protocol. Stent surfaces were characterized using 3D digital optical and scanning electron microscopy. Transferred metallic elements in dissolved tissue were measured using mass spectroscopy. Histopathologic assessment of stented tissue, when available, was also performed. Fifteen out of …
A Novel Approach To Dual Excitation Ratiometric Optical Mapping Of Cardiac Action Potentials With Di-4-Anepps Using Pulsed Led Excitation, 2010 University of Alabama at Birmingham
A Novel Approach To Dual Excitation Ratiometric Optical Mapping Of Cardiac Action Potentials With Di-4-Anepps Using Pulsed Led Excitation, Andrew Dennison Bachtel
All ETDs from UAB
We developed a new method for ratiometric optical mapping of transmembrane potential (Vm) in cardiac preparations stained with di-4-ANEPPS (DI-4). The method uses pulsed light emitting diode (LED) excitation. Vm-dependent shifts of excitation and emission spectra establish two excitation bands (<481 nm and >481 nm) that produce positive and negative changes in fluorescence within a single emission band (570-615 nm). The ratio of these positive and negative fluorescence signals (excitation ratiometry) increases Vm sensitivity and removes artifacts common to both signals. We pulsed blue (460±20 nm) and cyan (505±20 nm) LEDs at 500 Hz in alternating phase synchronized to a photodetector (1 …481>
Bridge Weigh-In-Motion For Bridge Safety And Maintenance, 2010 University of Alabama at Birmingham
Bridge Weigh-In-Motion For Bridge Safety And Maintenance, Hua Zhao
All ETDs from UAB
In the U.S., 40% of the bridges are considered defective and are eligible candidates for retrofit and replacement. Without interrupting the traffic and employing pre-weighed vehicles for the load testing, live load model is established and applied for the soft loading test with the application of the latest commercial bridge weigh-in-motion (BWIM) system. Field testing of three simple supported slab-girder concrete bridges on highway I-59, I-459 and I-78 is implemented to test and evaluate the BWIM system. In addition, field testing on highway I-78 is employed for enforcement screening with the comparison of the results acquired from the bending plate …
Impaired Vascular Reactivity Following Chronic Ischemia In The Arteries Of The Mouse Hindlimb, 2010 California Polytechnic State University, San Luis Obispo
Impaired Vascular Reactivity Following Chronic Ischemia In The Arteries Of The Mouse Hindlimb, Thomas (Tom) Kesler
Biomedical Engineering
Collateral dependent hyperemia is reduced following chronic ischemia, but the contribution of individual vessel reactivity is unknown. Further, it is not known what aspect of the complex ischemic injury response impacts vascular reactivity. To determine the impact of ischemia on vascular reactivity, we measured functional vasodilation in the muscular branch artery following resection of the femoral artery proximal to the muscular branch. On day-14 after surgery the diameter of the muscular branch was measured using side-stream dark field (SDF) imaging intravital microscopy. At moderate intensity skeletal muscle contraction (1mA, 200µs, 8Hz, 90sec), functional vasodilation is reduced compared to the contralateral …
Multifunctional Polymer Synthesis And Incorporation Of Gadolinium Compounds And Modified Tungsten Nanoparticles For Improvement Of Radiation Shielding For Use In Outer Space, 2010 College of William & Mary - Arts & Sciences
Multifunctional Polymer Synthesis And Incorporation Of Gadolinium Compounds And Modified Tungsten Nanoparticles For Improvement Of Radiation Shielding For Use In Outer Space, Emily Grace Harbert
Dissertations, Theses, and Masters Projects
No abstract provided.
Supercritical Pyrolysis Of N-Decane, 2010 Louisiana State University and Agricultural and Mechanical College
Supercritical Pyrolysis Of N-Decane, Sean Bagley
LSU Doctoral Dissertations
Fuels used in future generations of high-speed jet aircraft will be required to take on increasing heat loads in their role as the primary coolant for the absorption of waste heat from the engine. As a consequence, the hydrocarbon fuels will be exposed to elevated temperatures and pressures prior to their use as fuels, conditions which are beyond the critical point of the fuel and which lead to the formation of carbonaceous solid deposits in the pre-combustion environment.
Deposition of solids causes reduced engine performance and eventual failure, so understanding the mechanisms by which thermally stressed hydrocarbons become solids is …
Applying Transportation Forecasting To The Atlanta Area Public Transportation System, 2010 Georgia Southern University
Applying Transportation Forecasting To The Atlanta Area Public Transportation System, Aaron L. Taylor
Electronic Theses and Dissertations
In this thesis, we examine the implementation of volume delay functions to the Metropolitan Atlanta Rapid Transportation Authority (MARTA) system. Volume delay functions are n differentiable functions used to estimate the long-term distribution of user traffic on transportation systems. We will demonstrate the graphical behavior of these functions as well as explain the constraints for these functions. These tasks will be completed by developing a simplistic yet unrealistic model, demonstrate how the integral is used to estimate the total sum of this model, and then introduce the two functions which will be used in the analysis. The final task of …
Route Change Decision Making By Hurricane Evacuees Facing Congestion, 2010 Old Dominion University
Route Change Decision Making By Hurricane Evacuees Facing Congestion, R. Michael Robinson, Asad Khattak
VMASC Publications
Successful evacuations of metropolitan areas require overcoming unexpected congestion that reduces traffic flows. Congestion may result from accidents, incidents, or other events that reduce road capacity. Traffic professionals and emergency managers may promote deviations from planned routes to bypass an area of congestion and speed mass exit. However, some route changes may actually reduce traffic flow rates, and in these cases decision makers may want to discourage use of alternate routes. By using results of a behavioral survey of potential hurricane evacuees, this study identifies variables associated with the decision to alter routes and also identifies frequently used information sources. …
Engineering Students' Definitions Of And Responses To Self-Directed Learning, 2009 Olin College of Engineering
Engineering Students' Definitions Of And Responses To Self-Directed Learning, Jonathan Stolk, Rob Martello, Mark Somerville, John Geddes
John B. Geddes
COLLEGE INSTRUCTORS have struggled with a lack of self-directed learning (SDL) development in their students for many decades. Self-direction is by no means a new topic in teaching and learning, but it is one of growing significance in engineering educational discourse. In 1969, Carl Rogers articulated the need for flexible, independent learners: Teaching and the imparting of knowledge make sense in an unchanging environment. This is why it has been an unquestioned function for centuries. But if there is one truth about modern man, it is that he lives in an environment which is continually changing . . .We are, …