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.
Results
Showing 1 to 20 of 222 for “"long-term stability"”.
-
The orbital dynamics and long-term stability of planetary systems
… the faintness of the host stars, cannot be determined using other techniques. This type of analysis is performed for KOI- 984, a system with a single transiting planet perturbed by a non-transiting companion. By modeling the gravitational interaction between the planets using our code TTVFast, …
-
Long-Term stability of the correction of the unilateral posterior crossbite
… odontometric study was to evaluate the stability of orthodontically corrected<br>unilateral crossbite. This was done by comparing the long-term therapeutic results of patients treated either with rapid maxillary expansion (RME) or with slow expansion devices in the early (mean age: 7.2 …
-
Nanolaminate coatings to improve long-term stability of plasmonic structures in physiological environments
… coatings are investigated to improve their long-term stability in corrosive physiological environments. The structures are fabricated using phase-shifting PDMS masks, e-beam deposition, RIE, Atomic Layer Deposition and Rapid Thermal Annealing. An alternate approach using Nanosphere …
-
Long-Term Stability of Baseline Impact Scores in High School Football Players across Age Groups
… research has focused on the differences in stability of baseline neurocognitive performance among different age groups in adolescence. The main purpose of the present study was to explore the long-term stability of ImPACT baseline assessments across one-year intervals in multiple age groups …
-
Just somebody that you used to know? The long-term stability of attachment bonds after romantic separation
… from vireo on 2023-04-12 without embargo terms
-
Arsenic mobility in a changing northern climate: Implications for geochemical baselines and long-term stability of contaminants in lake systems
… of naturally occurring metal(loid)s and the long-term stability of mining-derived contaminants in sub-Arctic lakes. Arsenic (As) concentrations of lakes in the Courageous Lake Greenstone Belt (CLGB), Northwest Territories, Canada, are elevated from the weathering of mineralized bedrock and/or …
-
Insights from integrated deep-time thermal history modeling; Constraining the burial, exhumation, and long-term stability of the Fennoscandian Shield
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2026-08-01
-
The Long-term Stability of Class II Cases Treated in a Private Practice Using a Straightwire Appliance: A Dental Cast Analysis
<p>Achieving long-term stability after orthodontic treatment is a major challenge for orthodontists. The previous literature shows that relapse occurs at a considerable magnitude. The purpose of the present study was to determine the amount and type of long-term, posttreatment relapse that occurs …
-
What Can the Collective Action Problem Tell Us about the Recurrence of Civil War and the Long-term Stability of a Country?
… others who have experienced a civil war build long-term stability from the rubble of conflict. The explanation of why civil war recurs focuses on the collective action problem, centering on the rebel leaders' ability to solve the Rebel's Dilemma. I further argue that once the Rebel's Dilemma …
-
Stability of thin-film PEDOT:PSS electrodes for neuromodulation
… and neuropsychiatric disorders. However, their long-term stability has yet to be proven in neuromodulation applications where electrical stimulation over months to years is desired. This thesis addresses this critical challenge. An accelerated aging platform enabled high-throughput screening of …
-
Effect of Alkali on the Efficiency and Reliability of Cu(In,Ga)Se2 Solar Cells
… of a photovoltaic technology but so is its long-term stability. In this thesis, the relationship between the performance of alkali treated Cu(In,Ga)Se<sub>2</sub> solar cells and their physicochemical, electronic and structural properties are explored through a comparative study between …
-
Gallium arsenide field effect transistors microstrip integrated circuit dielectric resonator oscillators
… Narrowband oscillators are usually evaluated in terms of their frequency stability, reliability, size, cost, efficiency and output power characteristics. In terms of these parameters DROs outperform Gunn cavity oscillators and are only bettered by crystal locked sources in terms of frequency …
-
Triplet-Triplet Annihilation Upconversion in Solid-State Organic-Inorganic Ureasil Polymer Hosts
… that combine high upconversion efficiency with long-term stability. Herein, we investigated solid-state TTA-UC systems based on organic-inorganic hybrid polymers known as ureasils as hosts for a range of sensitizer/emitter pairs over the solar spectrum. Ureasils consist of organic …
-
Development of nanogels from nanoemulsions and investigation of their rheology and stability
… this thesis is to understand the formation and long-term stability of viscoelastic nanogels developed from liquid nanoemulsions. At first, gelation in 40 wt% canola oil-in-water nanoemulsions were investigated as a function of emulsifier type (anionic sodium dodecyl sulfate (SDS) or nonionic …
-
Fundamentals of Microgel Flooding and Nanoparticles-Stabilized Foams in Enhanced Oil Recovery
… addressed in EOR foam flooding is implementing long-term stability of the foams against coarsening and coalescence.</p> <p>This dissertation addresses these critical issues in PPG treatment and foam flooding from two aspects. First, we investigate the transport of soft spherical particles …
-
Improving the external extraction efficiency of organic light emitting devices
… technology, OLEDs must not only match the long-term stability of competing technologies, but must demonstrate a distinct advantage in efficiency. This thesis presents various strategies for fabricating nanopatterned structures that can be integrated into OLEDs with the aim of improving the …
-
Investigation of Krypton bubbles in copper using x-ray techniques
… by X-ray diffraction techniques. Stress determination and phase analysis are carried out to determine the residual stress of the host copper metal and the internal pressure of the krypton bubbles. Lattice parameter determination of krypton bubbles confirms solidification of krypton with a fee …
-
Design and debugging of ultrastable engineered genetic systems
… creates burdens on the host cell and reduces the long-term stability of these genetic systems. Here we address these two problems by (i) adapting high-throughput RNA-seq to visualize the inner-workings of these engineered genetic systems and (ii) developing a robust and efficient genome …
Page 1 of 12