Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 42 for “"Complex media"”.
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Dynamics of Nanoparticles in Complex Media
Hindered mobility of nanoparticles in complex media is ubiquitous in drug delivery, in processing of polymer nanocomposites, and in extraction of hydrocarbons. These applications require nanoparticles suspended in non-Newtonian fluids to be controllably dispersed through complex porous media. In …
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Coherent effects in wave propagation through complex media
… coherent control of wave propagation in random media that is complementary to wavefront shaping. Lastly, a class of critical states embedded in the continuum is uncovered in a one-dimensional optical waveguide array with one non-Hermitian defect. These states are on the verge of being fractal …
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Adaptive Intuitions in Complex Media Environments Shape Belief in Misinformation
… has been linked in part to digital media environments promoting reliance on intuition -- which in turn has been shown to increase belief in falsehoods. Here, I propose that this apparently irrational behavior may actually result from ecologically rational adaptations to complex …
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Density-shift Immunomagnetic Separation for Pathogen Retrieval from Complex Media
… enable more rapid detection of pathogens from complex media, such as food samples. This thesis describes a novel immunomagnetic bead-based sample preparation method called density-shift immunomagnetic separation (DIMS). The DIMS method uses beads to capture target pathogenic bacteria and …
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Numerical methods for electromagnetic wave propagation and scattering in complex media
Numerical methods are developed to study various applications in electromagnetic wave propagation and scattering. Analytical methods are used where possible to enhance the efficiency, accuracy, and applicability of the numerical methods. Electromagnetic induction (EMI) sensing is a popular …
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Enhancement of electromagnetic propagation through complex media for Radio Frequency Identification
In this thesis, I present and examine the fundamental limitations involved in Radio Frequency Identification (RFID) as well as provide a means to improve reader-tag communication in ultra high frequency RFID systems. The ultimate goal in an RFID system is to maximize the communication link between …
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Wave propagation in complex media, scattering theory, and application to seismic imaging
… an inverse scattering problem in structurally complex media. Conventional migration algorithms rely on linearized inversion schemes and assume single-scattering dominance. The primary focus of this thesis is an alternative nonlinear scattering-based approach to seismic migration. The goal is to …
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Energy Efficient Support for All Levels of Parallelism for Complex Media Applications
… provide high performance and energy savings for complex media applications without resorting to radically different architectures and programming paradigms.
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Forward and inverse problems in microwave remote sensing of objects in complex media
Thesis (Ph.D.)--Massachusetts Institute of Technology, Sloan School of Management, February 2000.
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The role of γ-polyglutamic acid in a circular economy: cost-effective production and wide-ranging applications of a bio-derived, biodegradable, and nonimmunogenic biomaterial
… γ-PGA is synthesised through several enzymes and complexes which racemise and polymerise L- glutamic acid or D- glutamic acid. This non-toxic microbial product can have variable viscosity, is water soluble, biodegradable, and non-immunogenic. The scope of this work was to investigate the effect of …
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Towards Establishing Methods of Synthesis, Purification, and Structural Determination for Human Fibrinogen
… robust techniques for purifying fibrinogen from complex media would provide a means by which to progress mutational studies of fibrinogen. Similarly, developing methods for high-resolution imaging of fibrinogen in its native, aqueous-based environment is necessary to establish proper …
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Feeding Strategies Based on Probing Control for E. coli and V. cholerae Cultivations
… strains need additions of amino acids or complex media besides the carbon nutrient to grow and produce the recombinant protein. The probing control concept is therefore extended in order to handle these situations. Feeding strategies for dual feeding of amino acids or complex media and …
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Critical Media Literacy: A Curriculum for Middle School English Teachers
… project provides an introductory, critical media literacy curriculum for middle school English teachers, which is designed to build upon students’ academic language proficiency and critical-thinking skills through media-based content. The targeted proficiency level ranges from …
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Community Newspapers In The Digital Age A Case Study: The Pass Christian, Mississippi Gazebo Gazette
… in the 21st century America exist in a diverse media landscape. Radio, television and online media all compete with newspapers to reach news consumers. With 24-hour cable news and the widespread adoption of the internet, information is available to viewers and readers anytime and anywhere. Much …
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Outsourcing Our Memory 2.0: Using Walter Ong's Orality/Literacy Studies to Recognize Technologies Effects on Memory
At the heart of media ecology is the principle that technology not only deeply influences society, but also controls most aspects of daily life. Additionally, media ecology investigates how media and communication processes profoundly affect human perception and understanding. The pervasive role …
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Iterative nonlinear beam propagation method and its application in nonlinear devices
… is presented for beam propagation in nonlinear media, which is validated with common Kerr effect phenomena such as self-focusing and spatial solitons. As the application to the analysis of nonlinear optical devices, this method is applied to nonlinear Lineburg lens. It is found that the …
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Elastic Propagation in random media: applications to the imaging of volcano structures
… active areas are often characterized by complex velocity structures, due to the presence of rocks with different elastic properties. I introduce some modifications to the original method in order to make it suitable for small and highly complex media. In particular, for very complex media …
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Amorphous calcium phosphate nanoparticles for biomedical cargo delivery
… The lead material proved to be size stable in complex media and was amenable to loading with diverse cargo – from soluble dyes and quantum dots to protein conjugates. Efficient in vitro delivery of a FRET pair (calcein & TRITC-BSA) was demonstrated with murine RAW cells. Finally, the particles …
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Development and use of a chemically defined medium for estimating the oxygen tolerance of campylobacter species
… additional scavengers of reactive oxygen intermediates (ROIs), although CO₂ was still required for growth. When the medium was prepared with other brands of tryptone, it did not allow growth of C. jejuni beyond 10% O₂. The dependence of the growth response on different types and brands of …
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Scattering of Seismic Waves from Arbitrary Viscoelastic-Isotropic and Anisotropic Structures with Applications to Data Modelling, FWI Sensitivities and Linearized AVO-AVAz Analysis
… studied for acoustic and isotropic-elastic media. In order to obtain an accurate image of subsurface earth, it is necessary to include both anisotropy and attenuation in inversion procedures as subsurface materials are far from being isotropic or elastic. In this thesis, we formulate the …
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