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 28 for “"wave patterns"”.
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Granular Wave Patterns in a Horizontal Rotating Cylinder
Our long-term objective is to combine our experimental and computational results to determine the values of the critical constitutive parameters that appear in our theory.
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Ship wave patterns and motions by a three dimensional Rankine panel method
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1990.
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THE PORTRAYAL OF WATER AND WAVE PATTERNS IN THE MUSIC OF CLAUDE DEBUSSY
… to his Water pieces within which I determine wave patterns. An examination of his piano and orchestral pieces, with particular reference to L’isle joyeuse, ‘Reflets dans l’eau’ from Images I and La mer reveals these wave patterns on every level of composition. Debussy’s use of modes to produce …
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The Effect of Listener Confidence of Reception, and Habituation-Facilitation Phenomena on Brain Wave Patterns During a Test of Auditory Discrimination
Made available in DSpace on 2014-12-14T05:26:37Z (GMT). No. of bitstreams: 1 7524311.pdf: 4985919 bytes, checksum: 4732c1bfa423dff216411434e3d0eb57 (MD5) Previous issue date: 1975
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Propagación de ondas en sistemas con geometrías complejas
… Abstract. This work deals with the study of wave propagation in systems that have two main features in common: boundary conditions with complex geometry and the existence of analogous systems in macroscopic or classic physics (hydrodynamics, acoustics, etc.) and microscopic physics (quantum …
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Kinetocardiogram computer diagnostic procedures
… which was a normal control. The kinetocardiogram wave patterns were then studied as a single basis for deriving a computer-assisted method of cardiac disease diagnosis. [See document for full abstract.]
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Combustion Physics and Inverse Modeling of Energetic Materials
… and transport processes results in complex wave patterns across a wide range of length scales from nano to millimeter. Our limited fundamental understanding of these combustion processes poses a challenge to design and optimize combustion properties, leading to significant reliance on …
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Modeling Regional Variation of Cortical Spreading Depression: A Computational Study
… ways. First, the natural occurrence of spiral wave patterns in a homogeneous domain. Second, we introduce spatial dependence of parameters to investigate how the varied structure of the hippocampus can impact CSD.
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The Wall-Mill : the design of a flexible machine for the in-situ architectural machining of surfaces
Water-like wave patterns on surfaces are seen in the walls of the Glaphyros Apartment in Paris, France and in the Frankfurt Nightclub in Frankfurt, Germany (designed by Mark Goulthorpe). These 3-D surfaces were created by first constructing molds which is an extremely time-consuming and inefficient …
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Tsunami Warning System
… systems can detect the formation of tsunami waves long before they reach shore, providing coastal communities with information about the strength of an incoming tsunami.</p> <p>Since providing accurate information about oceanic wave patterns is absolutely necessary to forecast the magnitude …
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Shock estimation in supersonic vehicles
… allows for a cost-effective estimation of shock wave patterns and their impingement on the vehicle surface on one side, while on the other it can be used to realize a-priori shock-fitted meshes reducing someof the uncertainty while generating them for high-fidelity CFD simulations.
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Experimental studies in a supersonic through-flow fan blade cascade
… of 2.36 over a 15° range of incidence. Flowfield wave patterns were recorded using spark shadowgraph photography and steady-state instrumentation was used to measure blade surface pressure distributions and downstream total and static pressure distributions. A two-dimensional LDV system was used …
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Additive Manufacturing of Functional Materials for Biomedical Devices
… strength of 336.96 ± 39.7 MPa). Sinusoidal wave patterns enable a mechanical response to transition from a low stiffness to a high stiffness, therefore satisfying the biomechanics requirements for both free ankle motion and stiffening for effective protection from ankle inversion. By …
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Numerical Simulation of Shock Wave Propagation in Ducts with Grooves
… research is to simulate the propagation of shock waves in ducts with roughness. The roughness is added in the form of grooves as in an existing experiment. Different shapes are considered in order to better understand the physics behind the evolution of the complex shock patterns resulting from …
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Numerical Navier-Stokes solutions of supersonic slot injection problems
… FVS method. Because of the very complicated wave patterns and strong viscous-inviscid interaction produced by supersonic slot injection, an adaptive grid based on the equidistribution law was combined with the solution algorithm. The results from Roe’s FDS method with the adaptive grid showed …
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Adjoint-based optimization for hyperbolic balance laws in the presence of discontinuities
… We will study the two main discontinuous wave patterns that appear in hyperbolic balance laws: contact discontinuities and shocks. These two have very different characteristics in the forward problem and we will see that they require different treatments for the adjoint formulations as …
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Experimental and Analytical Investigation of a Two-Phase Ejector Used for Expansion Work Recovery in a Transcritical R744 Air-Conditioning System
… used to investigate the complex two-phase shock wave patterns observed in the mixing section of the ejector. Static wall pressure distributions along the ejector were analyzed and flow choking phenomena and metastabilty effects were studied. Finally, a lighter weight and significantly smaller …
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Intra-seasonal oscillations of convection over southern Africa
… or convection as identified by an outgoing longwave radiation (OLR) index and P-E index. A longer 40-60 day oscillation or Madden Julian Oscillation (MJO) and a shorter 20-30 day ISO are identified. The interaction between the Rossby waves of the mid-latitudes and the MJO of tropics appears to …
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Turbulent Boundary Layer over a Piezoelectrically Excited Traveling Wave Surface
Recent studies have utilized spanwise traveling waves to alter the turbulent boundary layer with the aim of reducing skin friction drag. Spanwise traveling waves are a promising active drag reduction technique; however, the wave generation methods used in previous studies are bulky and could not be …
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A study of water wave reflection using close range photogrammetry
… is to investigate the various forms of water wave reflection to a high degree of accuracy. Close range photogrammetry is the technique that is used to measure the water surface profile, as it produces an accurate and comprehensive analysis of the water surface profiles. Conventional …
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