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2023

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Articles 8911 - 8940 of 9777

Full-Text Articles in Engineering

Analytical Methods Using Cardiac Mri To Assess Systolic And Diastolic Ventricular Function, Muhammad Rifqi Aufan Jan 2023

Analytical Methods Using Cardiac Mri To Assess Systolic And Diastolic Ventricular Function, Muhammad Rifqi Aufan

All ETDs from UAB

Magnetic resonance imaging (MRI) has proven invaluable for clinical and research investigations due to its minimal invasiveness and excellent measurement precision and reproducibility. In particular, Cardiac MRI (CMR) is a powerful tool for evaluating anatomical and functional properties of the left ventricle (LV). In this study, two aspects of CMR applications of the LV are investigated: 1) assessment of diastolic function by quantifying LV stiffness index and related properties as a representation of intrinsic myocardium properties in patients with diastolic dysfunction and 2) evaluation of systolic function by relating myocardial strain and LV geometrical configuration with ejection fraction (EF). The …

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Processing And Non-Destructive Evaluation Of Overmolded Thermoplastic Composites, Ibrahim Gundogdu Jan 2023

Processing And Non-Destructive Evaluation Of Overmolded Thermoplastic Composites, Ibrahim Gundogdu

All ETDs from UAB

The overmolding process is one of the newly developed composite processing methods which allow to integrate continuous and discontinuous fiber reinforced composites for weight and cost reduction for a variety of applications. Continuous fiber reinforced thermoplastics (CFRTs) exhibit excellent mechanical properties such as high impact strength and stiffness, however forming them into complex shapes is challenging and the processing cost is high. On the other hand, the processing of discontinuous fiber reinforced composites, including long fiber reinforced thermoplastics (LFTs), into complex shapes is relatively easy compared to continuous fiber composites because of their high processibility. The integration of both continuous …

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Synthesis, Characterization, And Evaluation Of A Bionanomatrix And Antibiotic-Releasing Liposomes On Osseointegration, Vascularization, Inflammation, And Antibacterial Efficacy, Benjamin Kade Estep Jan 2023

Synthesis, Characterization, And Evaluation Of A Bionanomatrix And Antibiotic-Releasing Liposomes On Osseointegration, Vascularization, Inflammation, And Antibacterial Efficacy, Benjamin Kade Estep

All ETDs from UAB

Percutaneous osseointegrated prostheses (POP) implants combat the multitude of issues and limitations of contemporary prosthetic sockets/limbs, including range of motion, comfort/fit, irritation, gait, and osseoproprioception. However, POP implants lack long-term clinical success; specifically, several risks exist at the bone-implant interface, including superficial/deep infections, inflammation, poor vascularization, and inadequate osseointegration, resulting in implant loosening over time and ultimately removal of the implant. The goal of this thesis is to evaluate a multifunctional, nitric oxide-releasing bionanomatrix incorporated with antibiotic-releasing liposomes on osseointegration, inflammation, vascularization/angiogenesis, and bacterial infection. We successfully synthesized the bionanomatrix, and the antibiotic-releasing liposomes readily encapsulated the antibiotics. The antibiotic-releasing …

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Flexural Behavior Of Composite Frp-Concrete-Steel Poles, Krenar Krasniqi Jan 2023

Flexural Behavior Of Composite Frp-Concrete-Steel Poles, Krenar Krasniqi

All ETDs from UAB

A new composite pole is being developed. The pole consists of an outer fiber reinforced polymer (FRP) shell, inside steel tube, and concrete filled between the two tubes (The composite FRP-concrete-steel pole is hereafter referred to as CFCSP). The FRP tube used in this research is produced using a centrifugal casting technique with glass-fibers oriented in the longitudinal and hoop direction. The longitudinal fibers provide flexural resistance to the section, whereas the hoop fibers confine the concrete and give shear resistance to the pole. The steel tube acts as longitudinal reinforcement, and the concrete is confined by the two tubes. …

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Triangular Fin Array Passively Actuated By Bimetallic Coils For Cubesat Thermal Control, Josh Cannon, Rydge B. Mulford, Brian D. Iverson Jan 2023

Triangular Fin Array Passively Actuated By Bimetallic Coils For Cubesat Thermal Control, Josh Cannon, Rydge B. Mulford, Brian D. Iverson

Faculty Publications

CubeSat thermal control can be especially demanding due to volume and size constraints, high power dissipation per unit surface area, and highly variable internal and external heat loads. As such, CubeSat developers must rely on thermal control systems that meet the specific requirements of their mission and environmental conditions. Deployable radiators enable satellites to increase their radiative surface area and to reveal highly emissive surfaces during times when increased heat rejection is desired. In colder conditions, when decreased heat loss is preferable, the radiators can be stowed. Passive thermal control systems are unpowered and can increase system reliability by not …

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Low-Fidelity Design Optimization And Parameter Sensitivity Analysis Of Tilt-Rotor Evtol Electric Propulsion Systems, Tyler Critchfield, Andrew Ning Jan 2023

Low-Fidelity Design Optimization And Parameter Sensitivity Analysis Of Tilt-Rotor Evtol Electric Propulsion Systems, Tyler Critchfield, Andrew Ning

Faculty Publications

Urban air mobility requires a multidisciplinary approach to tackle the important chal- lenges facing the design of these aircraft. This work uses low-to-mid fidelity tools to model rotor aerodynamics, blade structures, vehicle aerodynamics, and electric propulsion for a tilt-rotor electric vertical takeoff and landing (eVTOL) aircraft. We use gradient-based design optimization and extensive parameter sensitivity analysis to explore the design space and complex tradeoffs of tilt-rotor distributed electric propulsion systems.

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A Coupled Source Panel, Actuator Line, And Viscous Vortex Particle Method In An O(N) Scheme, Ryan Anderson, Andrew Ning Jan 2023

A Coupled Source Panel, Actuator Line, And Viscous Vortex Particle Method In An O(N) Scheme, Ryan Anderson, Andrew Ning

Faculty Publications

Wake interactions play a significant role in aerodynamics. However, common modeling approaches are either expensive or lack fidelity, making them unreliable or difficult to use in the design process. The vortex particle method can capture the relevant physics effectively, but imposing boundary conditions with solid surfaces in a computationally efficient way is challenging. We explore two possible methods of imposing solid surface boundary conditions of vortex particle simulations. The first, a novel variation on a pure particle approach, is easy to implement but is moderately expensive, and suffers from some numerical instability. The second, source panels accelerated with a fast …

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Isogeometric Boundary-Conforming Body-In-White Crash Model Construction, Analysis, And Comparison With Fem Model, Kendrick M. Shepherd Jan 2023

Isogeometric Boundary-Conforming Body-In-White Crash Model Construction, Analysis, And Comparison With Fem Model, Kendrick M. Shepherd

Faculty Publications

In this paper, we discuss model generation to rebuild the body-in-white of a 1996 Dodge Neon finite element model into a isogeometric conforming analysis-suitable crash model. We then perform the first known boundary-fit isogeometric body-in-white crash analysis of the vehicle and compare results achieved by traditional finite element methods. Results indicate the value and potential of high-order meshes in analysis.

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The Rayleigh Problem (Random Flights) Is Everywhere Redux, John E. Gray, Stephen R. Addison Jan 2023

The Rayleigh Problem (Random Flights) Is Everywhere Redux, John E. Gray, Stephen R. Addison

Journal of the Arkansas Academy of Science

The phase noise problem (or Rayleigh problem) occurs in all aspects of radar. It is an effect that a radar engineer or physicist always has to take into account as part of a design or in an attempt to characterize the physics of a problem such as reverberation. Normally, the mathematical difficulties of phase noise characterization are avoided by assuming the phase noise probability distribution function (PDF) is uniformly distributed, and the Central Limit Theorem (CLT) is invoked to argue that the superposition of relatively few random components obey the CLT and hence the superposition can be treated as a …

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Object Tracking With An Event Camera, Nader Ahmed , '23, Rezhwan A. Kamal , '23 Jan 2023

Object Tracking With An Event Camera, Nader Ahmed , '23, Rezhwan A. Kamal , '23

Senior Theses, Projects, and Awards

In this project, an event-based camera was used to develop a functional proof of concept for a procedural 3-D cube tracking system. Hough space shape detection was used to track the position of cube edges in the image space, and an optimization-based algorithm was used in conjunction for finding the pose of the cube. Additionally, a ghosting effect was seen following the trailing edge of events. A sensor model was developed for simulating and investigating this phenomenon.

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Inverting Kite Structure & Stability For Airborne Wind Energy, Joshua Vandervelde , '23 Jan 2023

Inverting Kite Structure & Stability For Airborne Wind Energy, Joshua Vandervelde , '23

Senior Theses, Projects, and Awards

Airborne Wind Energy (AWE) is an emerging method of extracting clean energy from high altitude airstreams with tethered kites, but inflated kites presently lack actuators to control lift and roll. Inverting wings show promise at providing both forms of maneuverability and have so far been researched to validate lift vector manipulation. This capstone project aims to demonstrate the applicability of inverting wings to roll control by segmenting an inflated wing into sections with independent inversion control, inducing a roll moment. The preliminary results from this novel wing design suggest that double inversion does indeed facilitate roll control, but further roll …

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Application Of Computer Vision To Project Sewing Patterns Onto Fabric, Michelle Zhuang , '23 Jan 2023

Application Of Computer Vision To Project Sewing Patterns Onto Fabric, Michelle Zhuang , '23

Senior Theses, Projects, and Awards

This senior design project is the application of computer vision to project sewing patterns onto fabric. Utilizing key concepts of computer vision such as homographies, affine transformations, keypoint detection, and feature mapping a final demonstration script has been implemented to project patterns onto fabric in real time. Keypoints are detected from real time camera feed of the fabric’s movement to establish the affine transformation between the two. The projected pattern can then be warped to fit the fabric’s new position. This project aims to be a solution better than the current system, which requires tracing and then cutting patterns onto …

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Conceptual Architecture For Digital Twin Implementation In A Smart City Framework, Wesley Conwell Jan 2023

Conceptual Architecture For Digital Twin Implementation In A Smart City Framework, Wesley Conwell

All ETDs from UAB

More than 9 billion people are expected to live on the planet in 2050, about two-thirds in cities. This substantial population growth in urban areas increases demands on cities' resources, services, and infrastructure. Hence, many cities leverage intelligent technologies to ensure urban communities' efficiency in integrating massive infrastructure components and services. Cities define this reconstruction of their operational framework as a smart city. Effective resource consumption management in a smart city integrative structure presents a problem with solutions concerning the distribution of city services. This dissertation aims to establish a conceptual framework to effectively manage resource consumption in a smart …

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New Heat Exchanger Modeling In The Passive Heat Removal System Of Vver-1200 Nuclear Power Plants, Bugrahan Mangan Jan 2023

New Heat Exchanger Modeling In The Passive Heat Removal System Of Vver-1200 Nuclear Power Plants, Bugrahan Mangan

All ETDs from UAB

The current work introduces an innovative methodology for modeling heat exchangers inside the passive heat removal system (PHRS) of water-water energetic reactor (VVER) nuclear power facilities. PHRS serves a crucial role in ensuring the secure and effective dissipation of residual heat produced during the shutdown of a reactor. Nevertheless, the current heat exchanger models exhibit deficiencies in terms of their thorough depiction of the geometric structure and thermal properties, hence limiting their precision and suitability for various applications.This study introduces a novel approach to modeling heat exchangers, with a specific emphasis on accurately representing complex geometric characteristics and including thermodynamic …

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Development And Evaluation Of A Nanomatrix Coated Stent Using A Vascular Sheet With Atherosclerosis Model, Xixi Zhang Jan 2023

Development And Evaluation Of A Nanomatrix Coated Stent Using A Vascular Sheet With Atherosclerosis Model, Xixi Zhang

All ETDs from UAB

While cardiovascular stent technology has considerable advances, there are hurdles to overcome due to the dysfunctional stented arteries which fail to maintain vascular homeostasis. Current stent designs ignored the significance of promoting functional artery healing (pro-healing). Therefore, we developed a pro-healing nanomatrix coating for stent. Previous studies investigated its effect on individual vascular cell type. In natural artery, there are multiple vascular cell types that strongly affect stent performance. Thus, an in vitro vascular double-layer (VDL) system was used to observe stent effects on different vascular cell types. And the pro-healing ability and mechanism of the nanomatrix coated stent were …

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Impacts Of Transportation Network Companies On Urban Congestion In A Medium-Sized City, Furat Shakir Salman Jan 2023

Impacts Of Transportation Network Companies On Urban Congestion In A Medium-Sized City, Furat Shakir Salman

All ETDs from UAB

The rise of ride-hailing and on-demand transportation services offered by Transportation Network Companies (TNCs) (such as Uber and Lyft) has been one of the key factors contributing to the growth of shared mobility services in recent years. The presence of contradictory findings on the impacts of TNCs necessitates the undertaking of an investigation into the shifts in mode choice that occur in the context of TNC services and their impacts on urban congestion. As a result of difficulties in gathering TNCs field data, it is still not possible to fully assess the impact of these services on urban congestion. Moreover, …

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Investigation Of Fish Gelatin/Polycaprolactone Nanofibrous Materials Alternating Field Electrospinning Fabrication And Characterization, Hannah A. Lacy Jan 2023

Investigation Of Fish Gelatin/Polycaprolactone Nanofibrous Materials Alternating Field Electrospinning Fabrication And Characterization, Hannah A. Lacy

All ETDs from UAB

As human needs and purposes continue to evolve, it has become crucial that the materials with which we address these new applications and challenges evolve in stride. Specifically, the medical field’s need for advanced materials has led to the drive for biomaterial synthesis and processing methods which produce adaptable material characteristics to satisfy application specific needs. Research response has been to expand viable natural/ synthetic biomaterial resources, design innovative nanofiber fabrication techniques with high levels of productivity, ease of access, and cost efficiency, and explore crosslinking and surface treatments/modifications to enhance material characteristics for improved performance. This research employs select …

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A Cold Plasma-Enabled Reduction Process For The Fabrication Of Metallic Nanostructures Onto Polymeric Biomaterials, Gerardo Hernández Moreno Jan 2023

A Cold Plasma-Enabled Reduction Process For The Fabrication Of Metallic Nanostructures Onto Polymeric Biomaterials, Gerardo Hernández Moreno

All ETDs from UAB

The design and manufacture of novel materials has served as the bedrock for tissue engineering and regenerative medicine. There exists a need for more biocompatible implantable materials in the biomedical device space. The approach to developing biomaterials fit for biomedical devices has been focused on decreasing overall physiological interaction with the local environment. However, the development of more biomechanically favorable materials has placed an emphasis on designing materials that display biomimetic and biomechanical properties resembling that of the host tissue at the implant site. As biomaterials engineering has progressed, the race to find materials that interact at the nano- and …

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Quantifying Geogrid Reinforcement Mechanism In Roadway Performance Using Cyclic Plate Load (Cpl) Test, G.S. Ellithy, A. Crippa Jan 2023

Quantifying Geogrid Reinforcement Mechanism In Roadway Performance Using Cyclic Plate Load (Cpl) Test, G.S. Ellithy, A. Crippa

Publications

For decades, geogrids have been used successfully to improve performance in both paved and unpaved roadway construction. Even though the current state of practice differentiates between the design methodology incorporating geogrids in paved and unpaved roadways, the true improvement contribution of geogrids is to the base layer, or to the layer that is placed directly on top of it. It has been established that the three reinforcement mechanisms by which geogrids enhance roadway performance are: lateral restraint, bearing capacity increase and membrane tension support. In order to quantify these mechanisms and their contribution to the roadway performance improvement, two Cyclic …

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Inkjet-Printed Reseroir Computing Network For In Situ Sensor Predictions, Steven D. Gardner Jan 2023

Inkjet-Printed Reseroir Computing Network For In Situ Sensor Predictions, Steven D. Gardner

All ETDs from UAB

The technological achievements made with silicon-based transistors have led to nearly all the computing seen today, complete with benefits such as maximized operating speeds, parallel/tensor processing, minimized power overhead, etc. The silicon electronics industry is foundational to scientific progression with its profound impact on modeling, simulations, and fast/reliable computing. However, silicon-based transistors have evolved to meet their physical limitations and have saturated fields of innovation. New fields in computing outside of silicon-based methods have emerged as exotic materials enter the research domain. The suite of super-performing materials like Graphene, Carbon Nanotubes, and Molybdenum Disulfide have chaotic, non-linear behaviors that make …

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Shared E-Scooters And E-Bikesl Analysis Of Trip Characteristics And Usage Patterns In Birmingham, Alabama, Mithila Hasan Jan 2023

Shared E-Scooters And E-Bikesl Analysis Of Trip Characteristics And Usage Patterns In Birmingham, Alabama, Mithila Hasan

All ETDs from UAB

The topic of shared micromobility has gained significant attention in the field of transportation engineering, exhibiting a significant rise in prominence in recent times. Micromobility’s inherent attributes of user-friendliness, ubiquitous accessibility, convenience, and cost-effectiveness have drawn considerable attention from individuals. In addition, the eco-friendly attributes of diverse shared micromobility modes encourage individuals to adopt them for short commutes. VEO emerged in Birmingham, Alabama in 2021 as a new participant in the dynamic landscape of shared micromobility, offering shared e-scooters and e-bikes. Similar to other medium-sized cities, the VEO pilot program in Birmingham captured the attention and participation of local travelers., …

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Least Flycatchers Under-Reported In Fall Migration In Arkansas —A Citizen Science Conundrum, L. Barnes, R. Kannan Jan 2023

Least Flycatchers Under-Reported In Fall Migration In Arkansas —A Citizen Science Conundrum, L. Barnes, R. Kannan

Journal of the Arkansas Academy of Science

The Least Flycatcher Empidonax minimus is a small passerine migrant bird that passes through Arkansas in fall and spring migration. The birds are vocal during spring passage but relatively quiet and unobtrusive during fall migration, leading to many fewer reports by birdwatchers in fall than spring. We use eBird maps and data to present evidence to support this discrepancy between fall and spring observations. We also show that the species is under-reported in Arkansas during the fall compared to neighboring regions. This may be in part due to the reluctance of some birders to provide the minimal evidence required to …

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Citizen Science: Role Of Inaturalist In Biodiversity Documentation And Education In Arkansas, K. Baker, L. Barnes, S. Rana, J. Jackson, R. Kannan Jan 2023

Citizen Science: Role Of Inaturalist In Biodiversity Documentation And Education In Arkansas, K. Baker, L. Barnes, S. Rana, J. Jackson, R. Kannan

Journal of the Arkansas Academy of Science

iNaturalist is a global online digital platform for documenting and fostering interest in biodiversity, with Research Grade (RG) entries being vetted and scientifically valid observations. Here we present a review of the role of approximately 16,000 Arkansans using the iNaturalist tool for recording 445,000 verifiable observations comprising 10,800 species, with 40 percent RG, and one third of observations still pending confirmation. Overall, plants lead in RG observations followed by invertebrates and birds. Within these groups, reptiles lead in proportion of RG observations, followed by birds and amphibians. Less charismatic or infrequently encountered organisms are less represented. Arkansas ranks about average …

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High Signal-To-Noise Ratio Event-Driven Mems Motion Sensing, Mohammad Mousavi, Mohammad Alzgool, Benyamin Davaji, Shahrzad Towfighian Jan 2023

High Signal-To-Noise Ratio Event-Driven Mems Motion Sensing, Mohammad Mousavi, Mohammad Alzgool, Benyamin Davaji, Shahrzad Towfighian

Mechanical Engineering Faculty Scholarship

Two solutions for improving MEMS triboelectric vibration sensors performance in contact-separation mode are reported experimen- tally and analytically. Triboelectric sensors have mostly been studied in the mesoscale. The gap variation between the electrodes induces a potential difference that represents the external vibration. Miniaturizing the device limits the sensor output because of the limited gap. This work offers a warped MEMS diaphragm constrained on its edges. The dome-shaped structure provides one order of magnitude larger displacement after contact-separation than standard designs resulting in one order of magnitude greater volt- age and signal-to-noise-ratio. Secondly, micro triboelectric sensors do not operate unless the …

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Development Of Polymeric Sorbents As Reusable Filtration Systems For Remediation Of Pfas Contaminated Water, E. Molly Frazar Jan 2023

Development Of Polymeric Sorbents As Reusable Filtration Systems For Remediation Of Pfas Contaminated Water, E. Molly Frazar

Theses and Dissertations--Chemical and Materials Engineering

Decades of use of per- and polyfluoroalkyl substances (PFAS) in a multitude of consumer and industry-based products have led to a devastating amount of soil and water contamination. Although these chemicals and compounds possess advantageous qualities – such as that of PFAS in the role of fire-fighting foams that have no doubt saved countless lives and homes, we must take responsibility for the anthropogenic hazards that threaten our global health. This entails being able to cost-effectively remediate problems created in the past from overuse of toxic substances that could negatively impact our future, and in this case, the future of …

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Mechanical And Adhesive Properties Of Supramolecular, Mussel-Inspired Hydrogels, Daniel Darby Jan 2023

Mechanical And Adhesive Properties Of Supramolecular, Mussel-Inspired Hydrogels, Daniel Darby

Theses and Dissertations--Chemical and Materials Engineering

The exceptional mechanical and adhesive properties of mussel byssal threads come from supramolecular interactions of ligands found in the proteins comprising them. Ligands can form hydrophobic interactions, π-π stacking interactions, and hydrogen bonds, but the strongest supramolecular interaction they demonstrate is metal-ligand coordination. Specifically, Histidine (His-) and nitrodopamine (nDOPA) ligands coordinate to metals in a bidentate fashion and take on tris-, bis-, and mono- modalities (3, 2, or 1 ligand per ion, respectively). The distribution of these modalities is controlled by equilibrium thermodynamics. These same ligands can be used as crosslinks in supramolecular hydrogel networks. Supramolecular hydrogel networks are dissipative, …

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Application Of Multi-Scale Computational Techniques To Complex Materials Systems, Mujan N. Seif Jan 2023

Application Of Multi-Scale Computational Techniques To Complex Materials Systems, Mujan N. Seif

Theses and Dissertations--Chemical and Materials Engineering

The applications of computational materials science are ever-increasing, connecting fields far beyond traditional subfields in materials science. This dissertation demonstrates the broad scope of multi-scale computational techniques by investigating multiple unrelated complex material systems, namely scandate thermionic cathodes and the metallic foam component of micrometeoroid and orbital debris (MMOD) shielding. Sc-containing "scandate" cathodes have been widely reported to exhibit superior properties compared to previous thermionic cathodes; however, knowledge of their precise operating mechanism remains elusive. Here, quantum mechanical calculations were utilized to map the phase space of stable, highly-faceted and chemically-complex W nanoparticles, accounting for both finite temperature and chemical …

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Surface Properties, Work Function, And Thermionic Electron Emission Characterization Of Materials For Next-Generation Dispenser Cathodes, Antonio Mantica Jan 2023

Surface Properties, Work Function, And Thermionic Electron Emission Characterization Of Materials For Next-Generation Dispenser Cathodes, Antonio Mantica

Theses and Dissertations--Chemical and Materials Engineering

A dispenser cathode’s ability to thermionically emit electrons is highly dependent on its material properties, especially those of the surface. Understanding the relationship between surface properties and electron emission, therefore, is vital to reach the next generation of the many vacuum electron devices (VEDs) that rely on the physics of electron emission. In the past century, many techniques have been developed to characterize material surfaces and quantify thermionic emission. These techniques are based on a wide range of different physical phenomena, including measuring photoemission via the photoelectric effect, measuring the electrostatic potential between metals in electrical contact, and current collection …

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Molecular Understanding Of Zwitterions And Quantum Computing For Sustainability, Manh Tien Nguyen Jan 2023

Molecular Understanding Of Zwitterions And Quantum Computing For Sustainability, Manh Tien Nguyen

Theses and Dissertations--Chemical and Materials Engineering

The sustainable development of society needs sustainable energy solutions and the mitigation of greenhouse gas emissions. One key subject in this area is the development of safe and efficient ion-based batteries. Moreover, CO2 capture is a crucial pathway in mitigating emissions from the combustion of fossil fuels. Ongoing efforts are to improve both technologies' safety and efficiency. This thesis presents our efforts to conduct computational research on understanding advanced zwitterionic electrolytes and CO2 capture. Chapters 2-4 illustrate the computational research to understand ionic solvation in zwitterionic electrolytes. Solid-state electrolytes are essential for safer batteries. While solid polymer electrolytes …

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Developing And Modeling Tunable Nanofiltration And Functionalized Membranes For The Separation Of Organics And Inorganics From Water: Per- And Polyfluoroalkyl Substances, Lanthanides, And More, Francisco Cecil Leniz-Pizarro Jan 2023

Developing And Modeling Tunable Nanofiltration And Functionalized Membranes For The Separation Of Organics And Inorganics From Water: Per- And Polyfluoroalkyl Substances, Lanthanides, And More, Francisco Cecil Leniz-Pizarro

Theses and Dissertations--Chemical and Materials Engineering

In a world where clean water predictability is challenged by both global warming and the contamination of our natural resources, it is our responsibility to advance water separation technologies into more efficient processes and to lessen their environmental footprint. Pore and surface functionalization of membranes can enhance the separation of ions from water and even help overcome intrinsic challenges that some current separation technologies possess. If we begin with a complete fundamental understanding of the nanoscale interactions that occur in the process of separating ions from water, then we can engineer new functionalized composite membranes to provide alternative processes keeping …

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