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Now showing items 41-60 of 173
Bayesian approach for the spectrum sensing mimo-cognitive radio network with presence of the uncertainty
(University of Missouri--Columbia, 2021)
A cognitive radio technique has the ability to learn. This system not only can observe the surrounding environment, adapt to environmental conditions, but also efficiently use the radio spectrum. This technique allows the ...
Anisotropic Mesh Adaptation for Image Segmentation based on Partial Differential Equations
(2020)
As the resolution of digital images increases significantly, the processing of
images becomes more challenging in terms of accuracy and efficiency. In this dissertation,
we consider image segmentation by solving a partial ...
Moving object localization using frequency measurements
(University of Missouri--Columbia, 2021)
This research investigates the ability of locating a moving object using the Doppler shifts of a carrier frequency signal sent or re ected by the object and observed by several fixed or moving sensors spatially distributed ...
A reappraisal of mesenchymal-to-epithelial transition within the endometrium
(University of Missouri--Columbia, 2021)
cells, we evaluated key postnatal (P) developmental time points using Amhr2-Cre; Rosa26-tTA; H2B-GFP reporter mice. Flow cytometry data indicated that MET may initially occur immediately after birth at P 0.5, with results varying from negligible amounts...
Combining shamir and additive secret sharing to improve efficiency of SMC primitives against malicious adversaries
(University of Missouri--Columbia, 2020)
Secure multi-party computation provides a wide array of protocols for mutually distrustful parties be able to securely evaluate functions of private inputs. Within recent years, many such protocols have been proposed ...
Multi-hazard resilience assessment of river-crossing bridges
(2021)
Bridge structures are required to possess high reliability and robustness against the concurrent effect of extreme loads and environmental attacks. To achieve such interrelated goals, it is necessary to assess the system ...
An evaluation of the need for critically refined purification procedures in fluorescent carbon dot syntheses : the ramifications of the ubiquitous presence of reaction by-products on quenchometric and light harvesting applications
(University of Missouri--Columbia, 2021)
Fluorescent carbon dots constitute a novel and intriguing class of nanocarbons that display unique optical properties and can be purportedly generated from virtually any carbon-containing source. For example, the thermal ...
Evaluation of use of dry-process rubber modification in asphalt mixtures
(University of Missouri--Columbia, 2020)
This study explores four different facets of using dry-process rubber modification in asphalt mixtures. The first investigation was motivated by the need to understand the cracking mechanism prevalent in the dry-process ...
Information fusion for robust detection of scarce features/objects in high resolution electro-optical satellite imagery
(University of Missouri--Columbia, 2021)
We conducted research to develop and test methods to improve the detection of scarce objects in high-resolution electro-optical satellite imagery. We demonstrated improvements through various forms of information and data ...
A Glittering Hope at the Darkest Time: Refugees and the Western Sanitary Commission During the Civil War
(2020)
By 1864, refugees from the South and the Western Border flooded into St. Louis and adjacent towns in unprecedented numbers. This influx of destitute people required aid and relief organizations in Missouri to broaden their ...
Detection and quantification of delamination in concrete via time-lapse thermography with machine learning
(University of Missouri--Columbia, 2021)
This study developed a framework to automatically extract sub-surface defects from time-lapse thermography (TLT) images of reinforced concrete bridge components. Traditional approaches for processing TLT data typically ...
Spin waves in doped graphene
(University of Missouri--Columbia, 2021)
Spin-waves have been studied to a great extent in solids and two-dimensional electron gases. These phenomena have garnered much interest in developing new kinds of devices for information processing and transmission. A ...
Uranium Oxides for Solid-State Direct-Conversion Neutron Detection
(2020)
to achieve absorption probabilities of a few percentages: 1.5–4% for 10 MeV neutrons for natural uranium oxides, ∼2% for 1 MeV neutrons for ²³⁵U-based uranium oxides, and 7–9% for thermal neutrons for natural uranium oxides, assuming each detector is 1 cm...
Mechanical metamaterials application in wave mitigation and structure protection
(University of Missouri--Columbia, 2020)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] "Metamaterials have been extensively developed in many areas over the past two decades, a great deal of research has been conducted on acoustic/elastic ...
RF coupling to realistic wire systems in complex environments
(2021)
With the continuous emergence of new wireless technologies, the possibility of unintentional electromagnetic interference (EMI) increases significantly. EMI coupling pathways to any Device Under Test (DUT) can be classified ...
Using feedback linearization to alter the performance of multiple linear hydraulic-actuators powered by the same pump
(University of Missouri--Columbia, 2020)
-actuators with both actuators being powered by the same pump. This research uses two open-centered 4-way valves to control the displacement of the two hydraulic actuators for a wheel loader implement system, based upon an input command from the operator who is modeled...
The role of resistance exercise training & IGF-1 signaling in the amelioration of mild cognitive impairment in female Wistar rats
(University of Missouri--Columbia, 2021)
Mild cognitive impairment increases risk for dementia. One therapeutic intervention that is reported to ameliorate cognition in patients with mild cognitive impairment is resistance exercise. However, the underlying ...
Associations between psychosis risk and emotional distress disorders with cortical surface morphometry
(University of Missouri--Columbia, 2020)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI-COLUMBIA AT REQUEST OF AUTHOR.] Neuroimaging studies have consistently found structural cortical abnormalities in schizophrenia, especially in structural hubs. However, it ...
Breast cancer imaging and detection using microwave technique
(University of Missouri--Columbia, 2020)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI-COLUMBIA AT REQUEST OF AUTHOR.] Worldwide, breast cancer continues to be the top cause of death among women and the second-leading cause of cancer death after lung cancer. ...
Programmable elastic metamaterials for wave and vibration control
(University of Missouri--Columbia, 2020)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Emerging from electromagnetic waves and fast extending to acoustics and elastics, metamaterials as artificial structures exhibit extraordinary wave ...