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 888 for “"1D"”.
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Obtaining 1D dynamics in a quasi-1D NMR spin system
… while preserving on-chain terms. This allows 1D dynamics to dominate for longer timescales. Finally, a framework is proposed by which one could generalize this method to other systems; similarly cancelling some set of "undesirable" dipolar couplings while preserving others. This method has …
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Dynamics of 1d granular column
This dissertation is focused on a discrete element study of the dynamics of a one- dimensional column of inelastic spheres that it subjected to taps by prescribing a half sine wave pulse to supporting floor. Contact interactions obey the Walton-Braun soft-sphere model in which the loading …
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Low Energy Excitations of 1D Fermi Gases
… we can study different regimes of these 1D Fermi gases. In particular, moving on from our previous investigations in the repulsive interactions, we investigate the attractive interaction side, where the attraction of the fermions causes bound states to form. The binding energy of these …
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Conservative numerical schemes for unsteady 1D two phase flow
[SPA] Esta tesis está dedicada al modelado de mezclas bifásicas no estacionarias de líquido y vapor. Esta motivada por la gran cantidad de aplicaciones industriales en las que podemos encontrar estos fenómenos. Los transitorios en flujo bifásico son un aspecto muy importante en diferentes …
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Spin wave characterization in a 1D YIG magnonic crystal
… characteristics measured in a one-dimensional (1D) yttrium iron garnet (YIG) magnonic crystal using time-resolved Brillouin light scattering (TR-BLS) measurements. Magnonic crystals are a promising candidate to aid in developing spin-based devices that exploit the spin of the electron since …
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Simulation of polymer solar cell characteristics by amps-1d
… and Photonic Structures One Dimension (AMPS-1D) is a computer simulation tool for solar cell device characteristics. The first part of this study focuses on the performance and comparison of current-voltage (I-V) simulations of indium oxide (In_2O_3) and tin oxide (SnO_2) (ITO) and poly …
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High Extinction Ratio Subwavelength 1D Infrared Polarizer by Nanoimprint Lithography
Infrared (IR) polarizers have been widely used in military and commercial applications. Controlling the polarization of incident light is one of major issues in the detector systems. However, conventional polarimetric IR detectors require series of polarizers and optical components, which increase …
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Entropy, Energy and Dynamics of Coalescing Spherical and 1D Aerosols
… coalescing aerosols I look at a novel system of 1D materials undergoing collision and “coalescing” processes whereby carbon nanotubes (CNTs) are colliding due to Brownian motion and bundling as a result of van der Waals (vdW) forces. The investigation of the CNT concentration required for aerogel …
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CableSplat: Optimized 3D Gaussian Splatting for 1D Deformable Pose Estimation
A key challenge in the robotic manipulation of deformable objects is the lack of accurate and efficient systems for estimating their pose in real-time, especially in the presence of occlusion. In this thesis we propose CableSplat, a novel non-parametric method leveraging 3D Gaussian Splatting to …
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Validierung eines 1D-Spraymodells zur Simulation der Gemischbildung in direkteinspritzenden Dieselmotoren
… nozzle exit the Diesel spray is substantially a 1D phenomenon. Therefore the governing equations are integrated over the cross-section of the spray and then solved separately in a one-dimensional code. The transport processes take place in a prescribed spray cone, in which the orifice is …
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Über die gekoppelte 1D- und 2D-Modellierung von Fließgewässern und Überflutungsflächen
… more rapidly and in greater detail. Coupled 1D-2D models permit high scenario numbers. They extend the possible application of modern, risk-oriented flood forecasting and prevention efforts. Apart from the coupling of different partial models to an overall integrated system, the presented …
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A Method for Clustering High-Dimensional Data Using 1D Random Projections
… clustering method using a binary tree of 1D random projections. As real data tends to have a lot of structures, we show that a 1D random projection of real data captures some of that structure with a high probability. More specifically, the structure manifests itself as a clear binary …
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Phase Transitions in driven 1D and Quasi-Periodic 2D Optical Lattices
… shaking to perform band engineering in a quasi-1D lattice. I will detail our experimental observation of a discontinuous version of the Mott insulator to superfluid transition. This is the first quantum simulation of a discontinuous quantum phase transition in a strongly correlated system. These …
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Linear Programs with Polynomial Coefficients and Applications to 1D Cellular Automata
… proof of ergodicity of the following elementary 1D cellular automaton: given the current state ηₜ∈{0,1}ℤ the next state ηₜ₊₁(n) at each vertex n∈ superscript ℤ is obtained by ηₜ₊₁(n)=NAND(BSCδ(ηₜ(n−1)),BSCδ(ηt(n))). Here the binary symmetric channel BSCδ takes a bit as input and flips it with …
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Vertical Structure And Surface Interactions Of Nitrous Acid Using A 1D Model
… and vertical Transport in One Dimension (PACT-1D) model. This work builds on a previous 0D modelling study from the NACHTT campaign, where the greatest unknown source rate of HONO was found during the early morning when a morning burst of HONO were observed and a stable nocturnal boundary layer …
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1D shallow sedimentary subsurface imaging using ambient noise and active seismic data
… meters of sediment cover. I imaged the seismic 1D shear wave velocity (and possibly the 1D compressional wave velocity). This information is not only required for any seismic risk assessment, geotechnical engineering or microzonation activities, but also for exploration and global seismology …
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