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 126 for “"monopole"”.
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Flexural strength of circular monopole flange connections.
… strength of circular flange connections in monopoles with particular attention to the role of stiffeners. Four finite element models---(a) 25.4 mm thick flange unstiffened connection, (b) 25.4 mm thick flange stiffened connection, (c) 19.1 mm thick flange unstiffened connection and (d) 19.1 …
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Dual band monopole antenna with harmonic suppression capability
… high performance multi-purpose antenna systems. Monopole antenna are well known for their compact size and low profile applications. The use of GSM and the ISM band frequencies at the same time by different devices require multiple antenna to support more than two frequencies. Thus this states …
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Conformal Boundaries, SPTs, and the Monopole-Fermion Problem
… in two dimensions, and their connection to the monopole-fermion problem in four dimensions, as well as to symmetry-protected topological phases in two and three dimensions. We begin by motivating the study of conformal boundary states for 2d fermions preserving chiral symmetries. Our main …
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The O+ 1 -> O+ g monopole transition in 112Cd
… main field of interest is internal conversion monopole transi¬tions, for which gamma-radiation is strictly prohibited. The monopole matrix element is defined and Its relevance to nu¬clear structure is emphasized. Secondly, a brief description of the mini-orange spectrometer used in this work is …
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Monopole Floer homology, link surgery, and odd Khovanov homology
… surgery spectral sequence for all versions of monopole Floer homology with mod 2 coefficients, generalizing the exact triangle. The spectral sequence begins with the monopole Floer homology of a hypercube of surgeries on a 3-manifold Y, and converges to the monopole Floer homology of Y itself. …
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Adaptive beamforming of steerable array monopole antenna for WLAN application
… communication. Using low-cost steerable passive monopole array antenna can achieve a beam steering and high gain. Loading an additional reactance to the passive elements of the array are changed the mutual coupling between the arrays, which leads to steering the pattern to the desired direction. …
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Adjoint-based monopole synthesis of sound sources with complex directivities
… are rather approximated by the superposition of monopoles around the directive sound source. For that purpose, an adjoint-based monopole synthesis method is discretized in a finite differences time domain (FDTD) scheme. Therein, the full non-linear Euler equations are solved by means of …
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Development of compact dual-band monopole antenna for LTE application
… in antenna. In other words, a compact meander monopole antenna is design on FR4 substrate and moisturized for LTE communication system. This research project is about the miniaturized monopole antenna design, which has operating frequencies of 2.1 GHz and 3.5 for LTE mid-bands and high-bands …
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Microplasma antennas: characterizing capillary plasma discharges as potential monopole antennas
… inner diameters and 1-5 cm in length, as monopole antenna elements. Plasma elements of this size have not been demonstrated before, as most plasma antennas use fluorescent tubes with inner diameters greater than 2 cm and longer than 30 cm. In order to validate that capillary plasma …
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Contributions to sutured monopole and sutured instanton Floer homology theories
… the development of some aspects of sutured monopole and sutured instanton Floer homology theories. Sutured monopole and instanton Floer homologies were introduced by Kronheimer and Mrowka. They are the adaption of monopole and instanton Floer theories to the case of balanced sutured …
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Results on spectral sequences for monopole and singular instanton Floer homologies
… Floer homology introduced in [15] and the monopole Floer homology, which is explained in the book [16]. For both cases, we study in particular the spectral sequence that relates the Floer homologies to the Khovanov homologies of links. In our study of singular instanton Floer homology, we …
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The Surgery Exact Triangle in Monopole Floer Homology with Z[i] Coefficients
… the existence of a surgery exact triangle for Monopole Floer homology. The triangle was a theoretical breakthrough and allowed us to answer questions about the surgery correspondence between knots and 3-manifolds that were previously mysterious. A serious limitation of their triangle was that …
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A proposed experiment to detect the magnetic monopole of the Ruderman-Zwanziger model
… of a quantum of magnetic charge, the magnetic monopole. Since its prediction, cosmic ray and accelerator experiments have been performed to detect the monopole, but all have failed. M. Ruderman and D. Zwanziger have put forward an explanation for the negative experimental results. They argue …
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DESIGN AND IMPLEMENTATION OF MICROSTRIP MONOPOLE AND DIELECTRIC RESONATOR ANTENNAS FOR ULTRA WIDEBAND APPLICATIONS
Ultra wide-band (UWB) technology is considered one of the very promising wireless technologies in the new millennium. This increases the demand on designing UWB antennas that meet the requirements of different UWB systems. In this dissertation, different UWB antennas are proposed such as an antenna …
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Design a high gain UWB mimo uniplanar monopole antenna with FSS array for metallic object microwave imaging
… design phase, a compact uniplanar hexagon UMB monopole antenna with a coplanar waveguide (CPW) feed is designed. The proposed UMB antenna has an oscillate impedance (za) of 50Ω. A meander-line notch filter is loaded on the designed antenna that achieves a high rejection (S11=-1.75 dB) at the …
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Ökonomische Überlegungen zur Bildung von Netzentgelten in der Stromwirtschaft
… befasst sich mit der Problematik natürlicher Monopole. Seit 1998 ist der Strommarkt in Deutschland liberalisiert. Das Ziel der Liberalisierung ist, Wettbewerb und damit die Effizienz auf dem Strommarkt zu fördern. Der Strommarkt lässt sich in die Wettbewerbsbereiche Stromerzeugung und …
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A direct search for Dirac magnetic monopoles
Magnetic monopoles are highly ionizing and curve in the direction of the magnetic field. A new dedicated magnetic monopole trigger at CDF, which requires large light pulses in the scintillators of the time-of-flight system, remains highly efficient to monopoles while consuming a tiny fraction of …
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Quantum states on spheres in the presence of magnetic fields
… geometry, the sphere, in the presence of a monopole magnetic field, was key to developing an early understanding of the fractional quantum Hall effect. Most of the numerous studies undertaken of similar systems since then have been limited to cases in which the magnetic fields are everywhere …
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