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-
- Description:
- Current technologies capable of establishing bioresorbable orthopedic fixation devices and stents have broad utility for biomedical applications to improve constructive tissue remodeling. Recent studies and investigations on bioresorbable conductors, semiconductors, dielectrics, and polymer substrates offer a promising opportunity to propel the existing non-degradable bioelectronic devices to the promising bioresorbable electronics,...
- Keyword:
- Soft materials, Bioresorbable electronics, Solid mechanics, Functional interfaces, Implantable electronics, and MEMS
- Subject:
- Mechanics, Bioengineering, and Mechanical engineering
- Creator:
- Yang, Quansan
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/02/2022
- Date Modified:
- 07/18/2022
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_824270 and http://dissertations.umi.com/northwestern:15603
-
- Description:
- Lubrication is the most means for sliding interface failure prevention because it helps separate two interacting surfaces, reduce asperity contacts and thus extend the working life of the parts. Improving the tribological performance of lubricated interfaces is a challenging work, as several influence factors are involved, such as coating, plasticity,...
- Keyword:
- Rotary engine, Elastohydrodynamic lubrication, Roller contact, Apex seal, and Tribology
- Subject:
- Mechanical engineering
- Creator:
- Liu, Zhong
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Modified:
- 06/05/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_684009 and http://dissertations.umi.com/northwestern:14792
-
- Description:
- Hollow biopsy needles are widely adopted medical devices for the removal of biological tissue to better identify a lesion or an abnormality observed through a physical exam or a radiology scan. These procedures can provide significantly more information than most medical tests, and they are usually performed on dermis layers,...
- Keyword:
- micro-serration, needle rotation, needle insertion, helical needles, tissue cutting, and core biopsy
- Subject:
- Mechanical engineering
- Creator:
- Giovannini, Marco
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 04/29/2020
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:14984 and etdadmin_upload_717405
-
- Description:
- Global energy demand is increasingly rapidly in today’s modern world with increasing living standards all around the world. As global energy demand rises, energy efficiency has never been more crucial and that the improvement of tribological systems is critical to the progress of the global future. A large part of...
- Keyword:
- Pocket, Misalignment, Lubrication, Texture, Journal Bearing, and Tribology
- Subject:
- Mechanical engineering
- Creator:
- Gu, Thomas
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_685145 and http://dissertations.umi.com/northwestern:14805
-
- Description:
- In recent years, we have seen the embryo of Industry 4.0 which has been promoting manufacturing processes towards the future with better efficiency, higher accuracy and better reliability. However, manufacturing precision has been restricted by the precision of metrology and material characterization. In other words, one can only manufacture parts...
- Keyword:
- Digital Image Correlation, Metrology, Industry 4.0, Photometric Stereo, and Deep Learning
- Subject:
- Mechanical engineering
- Creator:
- Yang, Ru
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 08/23/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16719 and etdadmin_upload_1012433
-
- Description:
- Polymer nanocomposites have attracted great interest in recent years because of their potential as tailored materials with enhanced properties. Recent experiments have shown that polymer nanocomposites are able to achieve significant improvement in dielectrical, thermal, mechanical and other physical properties compared with their parent polymer systems. More importantly, these outstanding...
- Keyword:
- polymer nanocomposite, simulation, machine learning, optimization, database, and data mining
- Subject:
- Mechanical engineering
- Creator:
- Wang, Yixing
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_685582 and http://dissertations.umi.com/northwestern:14811
-
- Description:
- Muscle strength assessment is a standard part of any clinical evaluation. Due to the kinematic and muscular redundancy in the human musculoskeletal system, muscle strength can not be measured directly in vivo. Clinicians utilize specific postures and forces to bias the muscles of interest, then infer the muscle strength from...
- Keyword:
- Active Learning , Parameter Estimation , Musculoskeletal Model, and Cervical Spine
- Subject:
- Mechanical engineering and Biomechanics
- Creator:
- Abbott, Rebecca Elizabeth
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 04/15/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_797807 and http://dissertations.umi.com/northwestern:15487
-
- Description:
- Polymer nanocomposites are a class of advanced materials comprised of soft polymer matrix and nano-filler inclusions. While it has been found qualitatively that enhancements of material properties could be achieved by dispersing inorganic nano-particles into organic polymer matrix, the intrinsic governing principles of such composite has not been thoroughly studied...
- Keyword:
- Interphase, Data Mining, Design Optimization, Finite Element Analysis, Deep Learning, and Microstructure Characterization and Reconstruction
- Subject:
- Mechanical engineering, Computer science, and Engineering
- Creator:
- Li, Xiaolin
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:14436 and etdadmin_upload_625304
-
- Description:
- High performance polymers and their composites have wide ranging application in advanced and emerging material systems. The macroscale performance of these advanced materials is often defined by interfaces that induce nanoscale changes in the microstructure or molecular conformations (termed the ‘interphase’) of the polymer. Atomic force microscopy (AFM) is an...
- Keyword:
- Indentation, Nanoconfinement, Polymers, Atomic Force Microscopy, Nanocomposites, and Additive Manufacturing
- Subject:
- Nanotechnology, Materials Science, and Mechanical engineering
- Creator:
- Collinson, David William
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15360 and etdadmin_upload_775260
-
- Description:
- Predicting pediatric spinal deformity (PSD) from X-ray images collected on the patient's initial visit is a challenging task. This research provides a bio-informed framework based on a mechanistic machine learning technique with dynamic patient-specific (PS) parameters to predict PSD. We provide a geometry-based bone growth model that can be utilized...
- Keyword:
- Adolescent idiopathic scoliosis (AIS), Mechanistic bio-informed machine learning, Pediatric spinal deformity (PSD), 3D reconstruction, X-ray images, and Mesh registration
- Subject:
- Mechanical engineering and Biomechanics
- Creator:
- Tajdari, Mahsa
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_879756 and http://dissertations.umi.com/northwestern:15944
-
- Description:
- As the technology enabling touch-sense rendering of virtual textures grows in efficacy and prevalence, so too grows the need for a standardized means of storing, transferring, and reconstituting textural signals. Furthermore, to achieve the ultra-low-latency requirements of the next generation of global communications networks, this digital texture representation must be...
- Keyword:
- Haptics, Tactile Signal Compression, Touch, Ultrasonic Friction Reduction, and Virtual Texture
- Subject:
- Mechanical engineering
- Creator:
- Burns, David Arthur
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 03/24/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16413 and etdadmin_upload_962297
-
- Description:
- Polymer nanocomposites are a designer class of materials where nanoscale particles, functional chemistry and polymer matrix combine to yield unprecedented combinations of superior physical properties. While well-defined data representation and quantitative models have been developed in material science domains such as metallic alloys, polymer nanocomposites have remained a largely untouched...
- Keyword:
- nanocomposite, dielectrics, and materials informatics
- Subject:
- Mechanical engineering
- Creator:
- Zhao, He
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_639974 and http://dissertations.umi.com/northwestern:14530
-
- Description:
- Active lateral force feedback is essential for haptic applications in which forces on the fingertip is perpendicular to or in the same direction of finger movement, such as virtual shape rendering and button click rendering. In this thesis, I first present a novel device, the UltraShiver, that can provide large...
- Keyword:
- Localized control, Electrostatic, Ultrasonic oscillation, Shape rendering, Active lateral force feedback, and Button click rendering
- Subject:
- Mechanical engineering
- Creator:
- Xu, Heng
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/28/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15498 and etdadmin_upload_800297
-
- Description:
- Additive manufacturing (AM), also known as three-dimensional (3D) printing, has received considerable interests in recent years. It enables fabrication of complex, customizable parts that would otherwise be too expensive or impossible for traditional manufacturing methods. 3D printing encompasses a wide variety of processes, including photopolymerization, material extrusion, selective laser sintering,...
- Keyword:
- Optical Imaging System, Continuous Liquid Interface Production, and Additive Manufacturing
- Subject:
- Mechanical engineering
- Creator:
- Hai, Rihan
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16043 and etdadmin_upload_900931
-
- Description:
- The functions of lubricants in moving interfaces are extensive; lubricants minimize friction, transfer heat, clean the rubbing surfaces, extract debris, and diminish wear. Rather than using separate lubricants for each of the functions, it is more desirable to make one lubricant serve multiple purposes, or a muti-functional lubricant. The goals...
- Keyword:
- Atomistic modeling of lubricants, Pour point, Tribopolymerization, Thermal conductivity, Tribology, and Interfacial tribochemistry
- Subject:
- Mechanical engineering
- Creator:
- Ahmed, Jannat
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 08/23/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16670 and etdadmin_upload_1004183
-
- Description:
- The rapid development of flexible electronics enables a huge amount of bio-integrated applications with advantages of the mechanical compliance, stretchability and comformability of the devices. My dissertation further advances this area by a series of projects, which include designing and optimizing novel compliant structures, proposing novel elastomer encapsulation process for...
- Keyword:
- Three-dimensional Assembly, Wearable electronics, Mechanical Design and Analysis, Stretchable and flexible electronics, Thermo-electric Energy Harvester, and Microflyer
- Subject:
- Electrical engineering, Mechanical engineering, and Fluid mechanics
- Creator:
- Li, Kan
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_635054 and http://dissertations.umi.com/northwestern:14498
-
- Description:
- Additive manufacturing (AM) offers exciting advantages for the fabrication of metallic parts compared to traditional techniques, such as the ability to create complex geometries with less material waste. This is done by building arbitrary geometries in a layer-by-layer fashion, thereby giving the designer great control over the design of the...
- Keyword:
- Data-driven Modeling , Computational Fluid Dynamics, Finite Element Modeling, Additive Manufacturing, and Computational Mechanics
- Subject:
- Applied physics and Mechanical engineering
- Creator:
- Jones, Kevontrez
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/28/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_807301 and http://dissertations.umi.com/northwestern:15507
-
- Description:
- Mixing by cutting-and-shuffling (like that for a deck of cards or a Rubik's cube) is a paradigm that has not been studied in detail even though it can be applied in a variety of situations including the mixing of granular materials. Mathematically, cutting- and-shuffling is described by piecewise isometries (PWIs),...
- Keyword:
- granular materials, mixing, machine learning, piecewise isometries, cutting-and-shuffling, and interval exchange transforms
- Subject:
- Applied mathematics, Chemical engineering, and Mechanical engineering
- Creator:
- Lynn, Thomas Ferguson
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_881325 and http://dissertations.umi.com/northwestern:15951
-
- Description:
- In recent years Additive Manufacturing (also known as 3D printing) processes have risen in use within research and industry to create complex, custom parts, which would be otherwise too expensive or even impossible to fabricate via conventional manufacturing methods. While originated as a tool for rapid prototyping, the improvements in...
- Keyword:
- Scaffolds, Fabrication Accuracy, Biomedical, and Additive Manufacturing
- Subject:
- Mechanical engineering
- Creator:
- Ware, Henry Oliver Tenadooah
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 01/21/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15077 and etdadmin_upload_741389
-
- Description:
- Nanoelectromechanical (NEMS) systems fabricated using atomically-thin materials have low mass and high stiffness and are thus ideal candidates for force and mass sensing applications. Transition metal dichalcogenides (TMDCs) offer certain unique properties in their few-layered form – such as piezoelectricity and a direct band gap in some cases – and...
- Keyword:
- Nanoresonators, 2D Materials, Single Cell Analysis, Raman Spectroscopy, Localized Electroporation, and Cavity-Interferometry
- Subject:
- Nanotechnology, Nanoscience, and Mechanical engineering
- Creator:
- Nathamgari, Samba Shiva Prasad
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_643740 and http://dissertations.umi.com/northwestern:14546
-
- Description:
- The staggered (or imbricated) lamellar ``brick-and-mortar" nanostructure of nacre endows nacre with strength and fracture toughness values exceeding by an order of magnitude those of the constituents, and inspires the advent of new robust biomimetic materials. While many deterministic studies clarified these advantageous features in the mean sense, a closed-form...
- Keyword:
- Nacre, Strength, Probability, Octet-truss, Architected Material, and Size Effect
- Subject:
- Mechanics, Mechanical engineering, and Civil engineering
- Creator:
- Luo, Wen
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 01/21/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15081 and etdadmin_upload_741756
-
- Description:
- The dissertation systematically delineates the mechanically-guided deterministic assembly of three-dimensional (3D) mesostructures by compressive buckling, covering topics from mechanics concepts, design and analysis, fabrication techniques, to application opportunities. The development of approaches to form complex 3D functional mesostructures in advanced materials is a topic of broad interest, thanks to the...
- Subject:
- Materials Science, Mechanical engineering, and Civil engineering
- Creator:
- Luan, Haiwen
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:14682 and etdadmin_upload_663249
-
- Description:
- Engineering design is a systematic process of identifying needs and their translation into functional systems. This is a cyclic process that alternates between the acquisition of data and the synthesis of said data to inform design decisions. Conventionally, data from physical experiments are used to explore the efficacy of alternative...
- Keyword:
- Uncertainty quantification, Design, Decision making, Machine learning, Data acquisition, and Data synthesis
- Subject:
- Design and Mechanical engineering
- Creator:
- van Beek, Anton
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/02/2022
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_861337 and http://dissertations.umi.com/northwestern:15848
-
- Description:
- A framework is developed that models point defect diffusion and interaction with pre-existing microstructures during irradiation, including defect-defect interactions and defect sinks. This framework uses a modified diffusion potential that includes not only defect concentration, but also intrinsic stresses from the pre-existing microstructure. Various microstructures are studied in {Fe} by...
- Keyword:
- Grain boundaries, Voids, Point defects, Radiation, Crack tip, and Triple junctions
- Subject:
- Materials Science, Mechanical engineering, and Nuclear engineering
- Creator:
- Zarnas, Patrick
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 10/07/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15639 and etdadmin_upload_831637
-
- Description:
- The advent of metamaterials—hierarchical structures that manifest properties beyond those found in nature through geometry rather than material composition—inspired new possibilities and research in many fields. In mechanics, periodic metamaterials exhibit behaviors ranging from unprecedented compressibility to extreme stiffness. Numerous geometric classes of metamaterials with these properties have been discovered,...
- Keyword:
- Design representation, Deep learning, Design synthesis, Multiscale topology optimization, Data-driven design, and Data acquisition
- Subject:
- Design, Mechanical engineering, and Computer science
- Creator:
- Chan, Yu-Chin
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 09/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16251 and etdadmin_upload_928694
-
- Description:
- Bio-integrated electronics with advanced monitoring capabilities have garnered considerable interest as a means of expanding patient care beyond traditional hospital and clinic settings. These mechanically soft microsystems, many of which are bioresorbable and wireless, have the potential to replace bulky, rigid, and wired medical technologies by matching or exceeding their...
- Keyword:
- Mechanics, Skin-Integrated Electronics, Injectable Electronics, Bioresorbable Pacemakers, Engineering Modeling, and Electromagnetics
- Subject:
- Biomedical engineering, Mechanical engineering, and Electromagnetics
- Creator:
- Avila, Raudel
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 05/31/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16445 and etdadmin_upload_970258
-
- Description:
- Biological experiments involving the manipulation and analysis of cells have always strived towards greater precision and resolution. Recent advances in micro and nanotechnology have improved the precision of manipulation and the resolution of analysis down to a single cell, thus opening new avenues of investigation. These advances have added a...
- Keyword:
- Intracellular Delivery, Microfluidics, and Localized Electroporation
- Subject:
- Bioengineering, Mechanical engineering, and Biophysics
- Creator:
- Mukherjee, Prithvijit
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15955 and etdadmin_upload_882743
-
- Description:
- Over the last several decades, market-driven needs created a vast assortment of products with micron-sized features. To achieve the necessary levels of precision and accuracy, a synergistic approach was undertaken, where both material addition and subtraction was employed in the creation of the desired parts. However, currently employed micromanufacturing processes...
- Keyword:
- self-assembly, electrophoretically-guided micro additive manufacturing, electrophoretic deposition, dielectrophoresis, and process control
- Subject:
- Mechanical engineering
- Creator:
- Pritchet, David
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 01/21/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_720880 and http://dissertations.umi.com/northwestern:15023
-
- Description:
- An extensive set of functional electronic properties depends on the electronic structure. These properties are directly connected to the reciprocal-space representation of electronic structure. However, there is a complementary, real-space perspective that is described by combinations of atomic orbitals. Atomic orbitals are the components of electronic structures, analogous to how...
- Subject:
- Materials Science and Mechanical engineering
- Creator:
- Dylla, Maxwell Thomas
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15203 and etdadmin_upload_758137
-
- Description:
- Modeling the mechanical performance of metal produced with additive manufacturing (AM) has proven to be a challenging task. In the as-built state, these materials have been shown to exhibit strong heterogeneity and anisotropy. Even after post-processing, such as heat treatment or hot isostatic pressing and depending on the alloy, some...
- Keyword:
- Simulations, Additive manufacturing, Mechanical performance, and Solid mechanics
- Subject:
- Mechanics, Materials Science, and Mechanical engineering
- Creator:
- Kafka, Orion Landauer
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 04/28/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:14952 and etdadmin_upload_708678
-
- Description:
- Proteins and many other systems are often conceptualized as networks to access analysis methods from the field of network science. Several approaches use molecular dynamics (MD) simulations of proteins to construct networks using correlational statistics. However, in the field of network science, a well-established approach for network construction is solving...
- Keyword:
- Network inference, Siglec-8, FimH, Molecular dynamics simulations, and Protein dynamics
- Subject:
- Mechanical engineering and Biophysics
- Creator:
- Liu, Jenny Yongjia
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 10/06/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15693 and etdadmin_upload_841212
-
- Description:
- With the increasing demand for customized products, rapid prototyping, and small-batch production, incremental sheet forming (ISF) is gaining ever-growing attention. The potential of ISF to produce parts without the use of geometry-specific dies has revolutionized the sheet forming processes. Despite its promising characteristics, ISF thus far has not been extensively...
- Subject:
- Mechanical engineering
- Creator:
- Jiang, Zilin
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_901916 and http://dissertations.umi.com/northwestern:16058
-
- Description:
- Modern design practices rely more and more on computer simulations due to their low cost compared with physical experiments. However, it is still an elusive task to fully unleash the advantages of the simulation models while mitigating their disadvantages for designing complex engineering systems. In simulation-based design, computer simulation models...
- Keyword:
- Design optimization, Bayesian optimization, Uncertainty quantification, Simulation-based design, Model calibration, and Multidisciplinary design
- Subject:
- Statistics, Design, and Mechanical engineering
- Creator:
- Tao, Siyu
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_773686 and http://dissertations.umi.com/northwestern:15350
-
- Description:
- Additive manufacturing (AM) processes have advanced rapidly over the last three decades to the point where they have the potential to fundamentally change the way complex parts will be designed and fabricated in the future. Additive methods leverage the ability to join metal particles or molten droplets in a layer-by-layer...
- Keyword:
- Hydrodynamic, Thermal, Laser Induced Forward Transfer, and Aperture
- Subject:
- Mechanics, Mechanical engineering, and Civil engineering
- Creator:
- Zhang, Li
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_618185 and http://dissertations.umi.com/northwestern:14414
-
- Description:
- The heart of computational materials science lies in providing fundamental insights and understanding of materials behavior and properties across different scales. The significance of this task is highlighted by the Materials Genome Initiative and the emergence of computational tools and frameworks such as materials by design, microstructure sensitive design, and...
- Keyword:
- random Process, Multiscale simulation, Microstructure, Gaussian process, and Uncertainty
- Subject:
- Materials Science, Statistics, and Mechanical engineering
- Creator:
- Bostanabad, Ramin
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:14508 and etdadmin_upload_638165
-
- Description:
- The successful isolation of graphene marked the advent of two-dimensional (2D) materials. Their atomically thin structures enable unprecedented electrical, optical, and mechanical properties, which have triggered significant research interests in the past decade. For instance, they are promising candidates for the fabrication of flexible electronics, biological sensors, battery electrodes, and...
- Keyword:
- Toughening, Transmission Electron Microscopy, Molecular Dynamics Simulations, In Situ Fracture Test, Polymer, and Two-dimensional Materials
- Subject:
- Materials Science, Mechanical engineering, and Engineering
- Creator:
- Zhang, Xu
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15978 and etdadmin_upload_889878
-
- Description:
- ABSTRACTUnderstanding Micro-macroscopic Phenomena of Tribological Fluids and Surfaces Mechanical power and motion are transmitted through interfaces under contact and relative motion. Friction is inevitable, which can lead to higher operating and energy costs, and severe frictional rubbing can result in material damage and cessation of motion. A deep understanding of...
- Subject:
- Mechanical engineering
- Creator:
- Pickens III, David Bruce
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15405 and etdadmin_upload_780873
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- Description:
- Metal Additive manufacturing (AM) processes build 3D objects by heating and consolidating material in a point-by-point manner. Unlike traditional manufacturing methods, AM allows the material properties of each point in the build to vary by controlling process conditions locally. The process parameters can be considered as inputs to the AM...
- Keyword:
- Metrics, Toolpaths, Additive manufacturing, Design space, Scan strategy, and Graph theory
- Subject:
- Mechanical engineering
- Creator:
- Cheng, Puikei
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 04/28/2020
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_719256 and http://dissertations.umi.com/northwestern:15008
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Across Scales: An Examination of the Impacts of Turbulence and Mobile Bedforms on Hyporheic Exchange
- Description:
- In this dissertation, advances are made in understanding both the way hyporheic exchange impacts riverbed morphodynamics and the physical processes that lead to turbulent momentum transfer in the first few grains of riverbed sediments. In terms of physical advances in understanding the interplay between bedform movement and hyporheic exchange, we...
- Keyword:
- Hyporheic Exchange, LES, Flume Experiments, Turbulence, and Bedforms
- Subject:
- Environmental engineering, Mechanical engineering, and Civil engineering
- Creator:
- Dallmann, Jonathan
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/28/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_819194 and http://dissertations.umi.com/northwestern:15572
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- Description:
- Robots can be capable partners when interacting with humans, but their value is largely dependent on how information is communicated in that partnership. In physical human-robot interaction, information is communicated via motion---configurations, velocities, forces, and torques. The autonomy interprets these implicit signals using metrics, which ultimately drive the the autonomy....
- Subject:
- Robotics and Mechanical engineering
- Creator:
- Fitzsimons, Kathleen
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_781114 and http://dissertations.umi.com/northwestern:15423
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- Description:
- To relate the mechanical responses of hard-soft copolymer systems with their microstructures, a coarse-grained molecular dynamics (CGMD) approach is employed. With the generic bead-spring polymer model mapped from atomistic simulations, this dissertation first studies the morphology of structures with various hard-soft compositions and interactions between hard beads. Following that, this...
- Keyword:
- coarse-grained molecular dynamics, local modulus, polyurea, micro-phase separation, interphase, and viscoelasticity
- Subject:
- Molecular physics, Materials Science, and Mechanical engineering
- Creator:
- Zhang, Min
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:14464 and etdadmin_upload_626984
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- Description:
- As opposed to the nanoscale deposition techniques often used for material syntheses, here, I focus on mesoscale material depositions and how to design interfaces to efficiently manage such deposition and potential accumulation. These deposition processes include condensation, condensation frosting, particle capture, and vaporization. Through the lens of energy and sustainability,...
- Keyword:
- Heat Transfer, Phase Change, Interfacial Phenomena, Fluid Mechanics, and Mass Transfer
- Subject:
- Mechanical engineering
- Creator:
- Machado, Christian
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 05/31/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16579 and etdadmin_upload_986155
-
- Description:
- Controlled delivery of foreign cargo into cells is a critical step in many biological studies and in cell engineering and analysis workflows. Recent advances in micro and nanotechnology, specifically in microfluidics and microfabrication have added significantly to the precision, accuracy, resolution and throughput of cell manipulation and analysis pipelines. These...
- Subject:
- Mechanical engineering
- Creator:
- Pathak, Nibir
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 08/23/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16641 and etdadmin_upload_997980
-
- Description:
- Integrated Computational Materials Engineering (ICME) has emerged as a transformative paradigm that enables the co-design of products, materials, and their manufacturing processes. A gamut of computational tools, such as manufacturing process simulations and multiscale materials analyses, have been developed henceforth by their respective research communities. However, it remains challenging to...
- Subject:
- Mechanical engineering
- Creator:
- Huang, Tianyu
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_781131 and http://dissertations.umi.com/northwestern:15424
-
- Description:
- The presence of unwanted biofilms on surfaces is a great concern for industrial, naval, and healthcare fields, and many other settings. To better inhibit, remove, or harness the properties of biofilms, an explanation of how specific structural or chemical features of biofilm matrix components leads to enhanced adhesion and persistence...
- Keyword:
- adsorption, protein mechanics, curli, biofilm, Molecular Dynamics, and CsgA
- Subject:
- Mechanical engineering
- Creator:
- DeBenedictis, Elizabeth
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_686008 and http://dissertations.umi.com/northwestern:14823
-
- Description:
- Flowing granular mixtures with species differing in some property, such as size, shape or density of the grains, tend to segregate (de-mix) during flow. Since flowing granular materials are common in industry, and since segregation is often unwanted and costly, understanding and mitigating segregation is an important concern in industrial...
- Subject:
- Mechanical engineering
- Creator:
- Fry, Alexander Michael
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:14808 and etdadmin_upload_685275
-
- Description:
- Flexible sheet metal forming processes possess significant potential in today’s industrial goods market with the advent of the next generation manufacturing paradigm, which put stresses on products customization and cost efficiency. However, due to the unique tooling configurations and forming mechanisms adopted in different flexible sheet metal forming processes, there...
- Subject:
- Mechanical engineering
- Creator:
- Leem, Dohyun
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 09/22/2022
- Date Created:
- 2022-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16265 and etdadmin_upload_929293
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- Description:
- Increasingly high global energy consumption demands effective approaches to high energy efficiency and, at the same time, paths to reduced release of carbon dioxide, a primary greenhouse gas behind global climate change. Friction reduction is a vital aspect towards making energy systems more efficient and one of the most crucial...
- Keyword:
- wear, tribology, lubrication, and friction
- Subject:
- Materials Science and Mechanical engineering
- Creator:
- Khan, Arman Mohammad
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/28/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15582 and etdadmin_upload_819626
-
- Description:
- The viscoelastic properties of microbial biofilms have attracted great interests in recent years due to the ubiquity of biofilms and their wide range of industrial and municipal applications causing tremendous societal impacts. Biofilms are predominantly architected by extracellular polymeric substances (EPS) matrices composed of bacterial cells and biopolymers secreted by...
- Keyword:
- Rheology, Optical coherence elastography (OCE), Nondestructive testing, Viscoelastic properties, Biofilms, and Wave propagation
- Subject:
- Environmental engineering, Mechanical engineering, and Acoustics
- Creator:
- Liou, Hong-Cin
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 04/29/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_714259 and http://dissertations.umi.com/northwestern:14970
-
- Description:
- Although flowing granular materials have been formally studied for over two hundred years, their behavior is still poorly understood relative to fluids, solids, and gases. Sheared granular materials with differing particle properties (e.g., size, density, shape) segregate (de-mix) due to percolation (small particles fall between large ones) and buoyancy (light...
- Keyword:
- Non-Spherical Particles, Granular Materials, Segregation, and Discrete Element Method
- Subject:
- Physics, Mechanical engineering, and Fluid mechanics
- Creator:
- Jones, Ryan Patrick
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 01/21/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_738802 and http://dissertations.umi.com/northwestern:15060
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- Description:
- Active lateral force feedback is essential for haptic applications in which forces on the fingertip is perpendicular to or in the same direction of finger movement, such as virtual shape rendering and button click rendering. In this thesis, I first present a novel device, the UltraShiver, that can provide large...
- Keyword:
- Localized control, Electrostatic, Ultrasonic oscillation, Shape rendering, Active lateral force feedback, and Button click rendering
- Subject:
- Mechanical engineering
- Creator:
- Xu, Heng
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/28/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15498 and etdadmin_upload_800297
-
- Description:
- As the technology enabling touch-sense rendering of virtual textures grows in efficacy and prevalence, so too grows the need for a standardized means of storing, transferring, and reconstituting textural signals. Furthermore, to achieve the ultra-low-latency requirements of the next generation of global communications networks, this digital texture representation must be...
- Keyword:
- Haptics, Tactile Signal Compression, Touch, Ultrasonic Friction Reduction, and Virtual Texture
- Subject:
- Mechanical engineering
- Creator:
- Burns, David Arthur
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 05/31/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16413 and etdadmin_upload_962297
-
- Description:
- Understanding structure-property relationships for polymer nanocomposites is one of the primary challenges in discovering new, light weight, multifunctional advanced materials. Polymer nanocomposites are a class of advanced materials comprised of soft polymer matrix and nano-filler inclusions. While it has been found qualitatively that enhancements of material properties could be achieved...
- Subject:
- Mechanical engineering
- Creator:
- Hu, Anqi
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 04/28/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15012 and etdadmin_upload_719334
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- Description:
- Topology optimization is a powerful tool for maximizing structural performance, enabling multifunctionality of the structure, and reducing the materials waste and cost for sustainable manufacturing. However, current topology optimization tools are limited to a few scales, and the potential of nested topology optimization in engineering design has yet to be...
- Subject:
- Mechanical engineering
- Creator:
- Li, Hengyang
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 08/23/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_998611 and http://dissertations.umi.com/northwestern:16643
-
- Description:
- The tension-spoke bicycle wheel owes its stiffness and strength to a cooperative relationship between the rim and the spokes: the rim holds the spokes in tension to prevent them from buckling under external loads, while the spokes channel external forces to the hub and prevent the rim from becoming severely...
- Keyword:
- stability, wheel, bicycle, modal analysis, and buckling
- Subject:
- Mechanics and Mechanical engineering
- Creator:
- Ford, Matthew
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_617839 and http://dissertations.umi.com/northwestern:14405
-
- Description:
- Using carbon fiber reinforced plastics (CFRPs) to reduce vehicle weight has received growing attentions because it can effectively curtail greenhouse gas emissions and slow down global warming. The thermoforming process is among the most promising techniques for mass production of CFRP parts because it is highly automated and has relatively...
- Keyword:
- FEM, CFRP, and Thermoforming
- Subject:
- Mechanical engineering
- Creator:
- Zhang, Weizhao
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_686026 and http://dissertations.umi.com/northwestern:14824
-
- Description:
- Friction modulation technology developed over the past decade now enables the creation of rich textural effects on flat haptic displays. However, an intuitive and manageably small design space for construction of such haptic textures remains an unfulfilled goal for user interface designers. In this thesis, I explore perceptually relevant features...
- Keyword:
- Haptics, Perception, and Texture
- Subject:
- Mechanical engineering
- Creator:
- Fenton Friesen, Rebecca Kate
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_764617 and http://dissertations.umi.com/northwestern:15277
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- Description:
- Recent advancements in processing and manufacturing techniques have spurred an exponential increase in use of polymer nanocomposites in a variety of applications. A key challenge in using these nanocomposites effectively is the dispersion of nanoparticles in the polymer matrix. Matrix-free assemblies of polymer grafted nanoparticles, called hairy nanoparticles assemblies(aHNPs) have...
- Keyword:
- Scaling law, Coarse-grained molecular dynamics, Hairy nanoparticle assemblies , Energy Renormalization, Mechanical property optimization, and Potential of mean force
- Subject:
- Mechanics, Mechanical engineering, and Nanotechnology
- Creator:
- Hansoge, Nitin Krishnamurthy
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 04/15/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15477 and etdadmin_upload_797349
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- Description:
- Two major areas of research in the field of manufacturing are miniaturization and 3D printing. The trend towards miniaturization stems from the desire and need for additional functionality and improved performance for products with ever-smaller footprints. Miniaturization opens manufacturing to new applications such as tissue engineering and surface texturing. Meanwhile,...
- Keyword:
- micro-manufacturing, micro-additive manufacturing, near-field electrospinning, residual charges, and electrohydrodynamics
- Subject:
- Mechanical engineering
- Creator:
- Martinez Prieto, Nicolas
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15128 and etdadmin_upload_743961
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- Description:
- Additive manufacturing is a promising process that has the capability to build components with complex geometries for structural and biomedical applications. Due to the rapid and localized directional solidification of molten metallic alloys, unique phase transformations occur at the melt pool that can provide for components with greater strength and...
- Subject:
- Materials Science and Mechanical engineering
- Creator:
- Wolff, Sarah
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:14448 and etdadmin_upload_626097
-
- Description:
- In recent decades, metal additive manufacturing has seen rapid advancements, offering promising applications across various industries. However, addressing existing challenges in metal AM, such as process stability, defect avoidance, and quality control, is essential for fully exploiting its potential in fabricating parts with a desired geometry, as well as tailored...
- Keyword:
- Physics-based Model, Digital Twin, Data-driven Model, Machine Learning, and Additive Manufacturing
- Subject:
- Mechanical engineering
- Creator:
- Liao, Shuheng
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 05/31/2023
- Date Created:
- 2023-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:16572 and etdadmin_upload_985942
-
- Description:
- Manufacturing processes are known for their intricacies in changing material shapes and properties. New generations of manufacturing technologies, known as flexible manufacturing, are moving toward design freedom, which allows producing parts with optimized geometries and high customizations at an affordable cost even for low-volume productions. Two prominent flexible manufacturing processes...
- Keyword:
- Neural Network, Reinforcement Learning, Manufacturing, Additive Manufacturing, and Artificial Intelligence
- Subject:
- Computational physics, Mechanical engineering, and Computer science
- Creator:
- Mozaffar, Mojtaba
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 10/07/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15685 and etdadmin_upload_839531
-
- Description:
- Directed energy deposition (DED) has pushed the frontiers of manufacturability by enabling the creation of multi-material, functionally graded components, the repair or modification of existing components, and the addition of wear resistant coatings. This additive manufacturing method creates a 3D object by depositing powder directly into a small molten pool...
- Keyword:
- Directed Energy Deposition, Thermal Control, and Additive Manufacturing
- Subject:
- Mechanical engineering
- Creator:
- Bennett, Jennifer Lynn
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/28/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- etdadmin_upload_814209 and http://dissertations.umi.com/northwestern:15520
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- Description:
- Transition Metal Dichalcogenides (TDMCs) are one of many families of two-dimensional (2D) beyond graphene, that started to gain more attention due to the need for miniaturization and their unique electrical, mechanical, and optical properties. Some members of TMDCs, such as MoS2, has direct band gap in its monolayer form, making...
- Keyword:
- Fabrication, 2D Materials, Piezoelectricity, Heterostructures, Transition Metal Dichalcogenides, and Resonators
- Subject:
- Nanotechnology, Mechanical engineering, and Engineering
- Creator:
- Dong, Siyan
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15259 and etdadmin_upload_764191