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 1329 for “"probing"”.
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Geometric Probing
We consider problems in geometric probing, the algorithmic study of determining a geometric structure or some aspect of that structure from the results of a mathematical or physical measuring device. A variety of problems from robotics, medical instrumentation, mathematical optimization, integral …
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Probing polygamous marriages in Zimbabwe
This study highlights the daily experiences of people in polygamous marriages face on a daily basis. It argues that there are more disadvantages for women in polygamous marriages than their counterpart in monogamous relationships. The study further suggests that the patriarchal power structure …
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Virtual Bodies: Probing Fake Flesh
<p>This thesis explores the fluid and often elusive concept of the body as mediated through technology and art, questioning the boundaries between the physical and virtual. By investigating the interactions of cultural ideals, technological mediation, and material experimentation, the research …
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Probing Galaxy Evolution with AKARI
This thesis presents the first detailed analysis of three extragalactic fields observed by the infrared satellite, AKARI. AKARI is the only telescope able to observe deeply in the Spitzer/IRAC - Spitzer/MIPS band gap of 8-24 microns. The first analysis of these extragalactic fields, was to perform …
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Diagonal Estimation with Probing Methods
Probing methods for trace estimation of large, sparse matrices has been studied for several decades. In recent years, there has been some work to extend these techniques to instead estimate the diagonal entries of these systems directly. We extend some analysis of trace estimators to their …
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Extreme ultraviolet probing of laser ablation
… the use of extreme ultraviolet (EUV) sources in probing laser ablation and material opacity. The radiation hydrodynamic codes POLLUX and h2d are used to study the Rayleigh-Taylor instability in a regime relevant to inertial fusion energy and, in support of experimental effort, to test the …
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Probing Cosmology with the MeerKAT Interferometer
Intensity mapping is a novel technique that has provided significant insights into the large-scale structure of the Universe. This thesis investigates the use of the Hi intensity mapping technique with data from the MeerKAT International GHzTiered Extragalactic Explorations (MIGHTEE) Survey. In …
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Probing Random Media With Singular Waves
… for a variety of applications which involves probing different types of random media. Such applications include remote sensing in atmospheric and maritime environments, optical techniques for biomedical diagnostics, optical characterization procedures in material sciences and others.
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XUV probing of warm dense matter
Experiments were conducted to test models of free-free absorption in warm dense aluminium by Iglesias, Shaffer et al. and Hollebon et al., Radiative heating using L-shell x-rays from a high temperature palladium plasma was used to heat an aluminium foil to a temperature of 0.9±0.23eV. Before the …
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Probing the Mechanism of Oxalate Decarboxylase
Oxalate decarboxylase (EC 4. 1. 1. 2 OxDC) from Bacillus subtilis is a manganese-dependent enzyme that catalyzes the cleavage of the chemically inactive C-C bond in oxalate to yield formate and carbon dioxide. A mechanism involving Mn(III) has been proposed for OxDC, however no clear spectroscopic …
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Probing Interactions Between Canonical NOX Domains
<p>NAPDH oxidase enzymes (NOXes) reduce molecular oxygen to superoxide and other ROS. NOXes contain a catalytic core comprising a heme-containing transmembrane (TM) domain and a cytoplasmic dehydrogenase (DH) domain that binds the substrate NADPH and the cofactor. Previously, NOXes were only …
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Probing the Boundaries of Human Agency
<p>In this dissertation, I aim to advance our understanding of human agency and how it is computed. First, I probe the limits of what behavior we can and cannot produce agentically. Secondly, I explore microdosing with psychedelic drugs as a method of perturbing and studying changes to the sense of …
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Probing Order within Intrinsically Disordered Proteins
Decades have passed since the realisation that a protein’s amino acid sequence can contain all the information required to form a complex three-dimensional fold. Until recently, these encoded structures were thought to be crucial determinants of protein function. Much effort was directed to fully …
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Probing for Reasons: Presentations, Questions, Phases
This thesis reports on a research study based on data from experimental teaching. Students were invited, through real-world problem tasks that raised central conceptual issues, to invent major ideas of calculus. This research focuses on work and thinking of the students, as they sought to build key …
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Advanced control of MEMS probing devices
… control approach is demonstrated on a micro probing device with electrically separated sensing combs and driving combs. The system is identified through experimental input-output data and the hardware is setup in such a way that the resulting model is a linear time-invariant model with …
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Probing the topology in band insulators
Topological Insulator is a newly found state of matter. Unlike phases described by the traditional Landau theory of symmetry breaking, the topological phases do not break symmetry, and it is not obvious in which measurable quantity will the topological index manifest itself. In this thesis, our …
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Evaporation from nanopores : probing interfacial transport
Evaporation, a commonly found phenomenon in nature, is widely used in thermal management, water purification, and steam generation as it takes advantage of the enthalpy of vaporization. Despite being extensively studied for decades, the fundamental understanding of evaporation, which is necessary …
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Multiscale probing of colloidal gelation dynamics
Colloidal gels are viscoelastic materials characterized by the collective behavior of particles that form a space-spanning network. Although the network structure embodies the aggregation process of the particles, the kinetic pathway from a stable suspension to such a complex microstructure remains …
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Probing Language Models for Contextual ScaleUnderstanding
… learn the structure of the physical world. By probing the contextualized embeddings of sentences, we examine how well LMs predict the sizes of real-world objects. We further explore the effect of adjectival modifiers on object embeddings. We show that while larger models more accurately convey …
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Probing Organometallic Reactions With 19F NMR
This dissertation explores fundamental aspects of the reaction of group 4 metallocenes with methylaluminoxane (MAO) that lead to active Ziegler-Natta olefin polymerization catalysts. A novel experimental approach is described, in which a unique spectroscopic probe (a fluorinated substituent) is …
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