Sökresultat

This paper presents a hardware mapping of an auto-correlator for Orthogonal Frequency Division Multiplexing stage for three radio standards: LTE, DVB-H, and IEEE 802.11n. Hardware cost is minimized by using only the sign bit in the autocorrelation function. The frequency offset estimation procedure is dramatically simplified by reducing the phase of the envelope to pi/2 resolution, which in turn r

Popular Abstract in Swedish Elektrocochleografi (ECoG) är en metod som mäter de elektriska signaler som uppstår i innerörat när örat stimuleras med ljud. Signalerna uppstår i snäckans sinnesceller, de så kallade hårcellerna, och i nervcellerna som utgår från snäckan. Snäckan är det organ som omvandlar ljudets mekaniska energi till elektriska signaler i hörselnerven. Hörselnerven förmedlar signalerElectrocochleography (ECoG) is an objective method to evaluate cochlear electrophysiology. The recordings are considered to reflect the mechano-electric processes of the cochlea, and can indicate the presence of suspected endolymphatic hydrops. The aim of the present thesis was to investigate the value of transtympanic (TT) ECoG in the clinical diagnosis and management of Menière´s disease. The tr

This paper provides an outline of a theory of causal truthmaking according to which contingent truths are made true by causal facts and dispositional mechanisms.

This thesis describes how to provide standardized, current based, differential protection for any three-phase power transformer, including phase-shifting transformers with variable phase angle shift and transformers of all construction types and internal on-load tap-changer configurations. The use of standard transformer differential protection for such applications is considered impossible in the

Texten handlar om de planer på att bygga om den så kallade Öresundspaviljongen vid brofästet utanför Malmö till ett exklusivt hotell som stadens kommunpolitiker umgicks med under ett par år i början av 2000-talet. Texten beskriver ett tidigt stadium i ett hotells historia; de visioner och planer som föregår det fysiska hotellet och förhoppningsvis lever kvar i byggnaden efter det att geografiska,

We present a method for evaluating measurements of bianisotropic materials in a waveguide. By solving an eigenvalue problem for a matrix formed from measured S-parameters, propagation constants in the material can be determined from the eigenvalues. The eigenvectors give additional information.

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This PhD thesis consists of three separate papers. The common theme is methods to calculate analytical approximations for prices of different contingent claims under various model assumptions. The first two papers deals with approximations of standard European options in stochastic volatility models. The third paper is focused on approximating prices of commodity swaptions in a general model frame

A business analyst who commences an investigation into design requirements for a new work system probably does not ‘label’ her inquiry process as research. However, a research perspective is needed if a productive learning spiral is to be established in which ‘useful’ systems can be created. Systematic, collaborative inquiry adopting an complex, open systems perspective is required in order to est