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Time-Domain Nu-Gap Robustness Analysis for Shift-Invariant Systems

A nu-gap measure of distance between linear time-invariant systems is defined in terms of projections onto system graphs directly, without appealing to the existence of normalised strong graph representations as in the literature. A robust stability result is derived by exploiting an assumption on the compactness of a Hankel-type operator in a similar manner to recent developments on time-varying

A study of the stereochemistry and electronic transitions of cyclic and acyclic thioamides by crystallography, spectroscopy and computational methods

Popular Abstract in Swedish En studie av konformationer och elektronövergångar i ett antal rodaniner, ett tiourinämne och ett par ditiokarbamater m.h.a. kristallografi, spectroskopi och datatekniska beräkningsmetoder.Analysis of conformations and electron transitions of 3-(alkyl or aralkyl)-5-(methyl or phenyl)rhodanines with analogues and N,N'-bis[(S)-1-phenylethyl]-thiourea have been performed by X-ray crystallography, 1H NMR, molecular mechanics, ultraviolet spectroscopy and for the chiral rhodanines, enantiomer chromatography and circular dichroism spectroscopy. The magnitude of rotational barriers has bee

Density Evolution Analysis of Protograph-Based Braided Block Codes on the Erasure Channel

A threshold analysis of terminated braided block codes (BBCs) is presented for the binary erasure channel. Protograph based BBCs (PG-BBCs) are considered, which can be derived by lifting the Tanner graph of a tightly braided block code. They can be interpreted as GLDPC convolutional codes that are structured in a particular way. It is shown that the terminated PG-BBCs have better thresholds than t

Density Functionals for Dynamic Linear Response in Finite Systems

This dissertation investigates a new method for obtaining excited-state properties of finite, many-electron systems such as atoms, molecules and nano-systems. The method combines the merits of many-body perturbation theory and time-dependent perturbation theory and yields approximate density response functions which preserve basic physical conservation laws. Furthermore, advanced density functiona

Adding dimensions to research student learning and research supervision

Research student learning and supervision has become an increasing concern for many stakeholders inside and outside the universities. As a result, universities are in different ways trying to enhance doctoral education, often through activities aimed at research supervisors.In this paper we claim that research supervision and its relation to research student learning is poorly conceptualised in un