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 3136 for “"Coherent"”.
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Stroboscopic Inline Coherent Imaging
Inline coherent imaging (ICI) is an in-situ monitoring technique, used in laser processing applications such as welding and additive manufacturing. Conventional ICI systems image with a continuous-wave broadband light source, which makes the system susceptible to an effect known as motion artifact. …
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Coherent X -Ray Diffraction
The theoretical foundations of CXD are described in Chapter 1 as derived from the kinematical formulation for x-ray diffraction and from the temporal and spatial coherence of radiation. The antiphase domain structure of Cu 3Au is described, along with the associated reciprocal-space structure which …
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Coherent x-ray diffraction
Submitted by Meng Tao (mengtao2@illinois.edu) on 2012-10-26T22:51:05Z No. of bitstreams: 1 pitney_John.pdf: 12626202 bytes, checksum: 0a4edb5141b145027d659f789e1e8679 (MD5)
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Cache coherent commutative operations
This thesis presents Coup, a technique that reduces the cost of updates in shared memory systems. In particular, it describes a new cache coherence protocol, MEUSI, and evaluates its performance under simulation in zsim. MEUSI extends the MESI protocol to allow data to be cached in a new …
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Coherent manipulation of ultracold Rubidium
… early experimental stages of investigation into coherent laser atom interactions which may be used as a general all-optical method to impart momentumto atoms and molecules and thus manipulate their velocity. The thesis covers the construction and operation of stable diode lasers, a …
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Coherent matter waves near surfaces
Neutral atoms can be trapped and manipulated on microscopic scales near surfaces of atom chips. The work covered by this thesis includes the development and test of microscopic atom optical tools. An omni-directional magnetic matter wave guide and novel types of magneto-electric trapping potentials …
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Coherent flow power Doppler imaging
… vessel detection techniques are desirable.</p><p>Coherent flow power Doppler (CFPD) imaging was proposed as a sensitive flow detection and imaging technique for slow flow and small vessels. In this work, we present the study on CFPD from principles to clinical evaluation. </p><p>The CFPD imaging …
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Quantitative, Photocurrent Multidimensional Coherent Spectroscopy
<p>Multidimensional coherent spectroscopy (MDCS) is a quickly growing field that has a lot of advantages over more conventional forms of spectroscopy. These advantages all come from the fact that MDCS allows us to get time resolved correlated emission and absorption spectra using very precisely …
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Low-complexity coherent optical receivers
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2026-12-01
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Coherent and controllable outfit generation
People often select outfits with a theme in mind. One might dress for a tropical getaway or to look good at a cocktail party. Existing outfit generation methods use item-wise or outfit-item compatibility tests, and lack an effective method to enforce a global constraint like style or occasion. We …
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Coherent control of neutron interferometry
… are proposed and demonstrated for measuring the coherent properties of materials and testing aspects of quantum information processing using a single crystal neutron interferometer. In particular we introduce methods for reciprocal space encoding of spatial information systematically in a neutron …
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Coherent control of quantum information
… used to study noise processes that compromise coherent control, to develop useful techniques for detecting noise, and to explore effective noise-protection schemes. A quantum simulation of the quantum sawtooth map in the perturbative parameter regime is used to study the effects of experimental …
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Coherent versus non-coherent space-time shift keying for co-located and distributed MIMO systems
… Multiple-Output (MIMO) systems using both coherent and non-coherent detection. Furthermore, we conceive new serially-concatenated turbo-coding assisted STSK arrangements for the sake of approaching the channel capacity limit, which are designed with the aid of EXtrinsic Information Transfer …
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Coherent structures in incompressible fluid flows
The work is broadly related to the transition to turbulence in pipe at intermediate Reynolds numbers and includes a discussion of two classes of structures observed during the transition to turbulence: numerically-extracted solutions of the Navier-Stokes equations (the "exact'') and …
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Coherent Nanostructures: Dynamics control and noise
… decoherence. We will study quantum control for coherent superconducting nanodevices. This devices are aff ected by a Broad Band Colored and Structured (BBCS) noise, which is qualitatively di fferent to what encountered in atomic physics, since it is chatacterized by a strong non-Markovian …
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Coherent optical nonlinearities in semiconductor microstructures
… intraband polarizations in the presence of a coherent driving field and a finite carrier density. It is found that the coupling of the intraband polarizations via guided modes to the polarization of the fundamental longitudinal mode is responsible for the third transmission peak. A fully …
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RFID anti-collision technique: coherent collision
RFID technology has enabled great advances in the asset tracking industry. Shipping, warehouse inventory, and storefront security are just a few examples where the application of RFID systems has increased efficiency and lowered cost. A major area of research at the present time is concerned with …
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Empirical evidences of coherent market hypothesis
In this dissertation, empirical explorations of basic properties of the CMH-based returns distribution will be conducted on the Johannesburg Stock Exchange. This is followed by a the-oretical exploraion of the stochastic differential equations that governs the underlying market dynamics.
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