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This paper studies the effects of stochastic time delays on automatic control systems which uses communication networks. We assume a linear process to be controlled and known delay probability distributions.The contribution of this paper is to extend the theory in(Nilsson 1998) to delays that may be longer than one sample period.Using a quadratic cost we find the optimal full-state-information con

The database of photographic meteor orbits of the IAU Meteor Data Centerin Lund has gradually been updated. The version 2001, which has beenprepared for distribution and which will be released soon, containscomplete orbital and geophysical data on 4581 meteors (equinox J2000.0).A new meteor identification code consisting of the publication serialnumber, the author or station code and number of the

This chapter examines the relationship between individual and organizational identity in PSFs and the significant but tenuous nature of elite identity in this context. The authors identify four main identity-related issues for management control in PSFs: autonomy/conformity tensions, the client conundrum, ambiguity saturation, and intangibility. They explore three main modes of identity-focused co

Popular Abstract in Swedish Denna avhandling handlar om arbetarförfattaren Ivar Lo-Johanssons modernitet, sådan den kommer till uttryck i de sk. statarromanerna: Godnatt, jord (1933), Bara en mor (1939) och Traktorn (1943). Först undersöks hur modernisering och modernitet skildras i romanerna och därefter hur författaren förhåller sig till den litterära riktning som kommit att symbolisera den esteThis dissertation examines the modernity of the Swedish proletarian author Ivar Lo-Johansson (1901-1990), as manifested in the so-called 'statare' novels: Godnatt, jord (Breaking Free, 1933), Bara en mor (Only a Mother, 1939), and Traktorn (1943). The dissertation examines, on the one hand, modernisation and modernity as the topoi of these novels, and on the other, how the author relates to the li

Popular Abstract in Swedish Autoimmuna sjukdomar är tillstånd där vårt immunförsvar angriper den egna kroppen. Det finns ett flertal sådana sjukdomar av vilka jag huvud-sakligen har intresserat mig för rheumatoid artrit (RA) och multipel skleros (MS). De behandlingar som finns för de drabbade är idag främst riktade mot ergonomi, smärtlindring och olika former av immunsupres-sion (tex TNFa antikropThe causes of autoimmune diseases are largely unknown today, but there is evidence supporting a substantial complex genetic influence on many of these diseases as well as environmental factors and chance. In this thesis I have tried to get one step closer to the genetic causes of two autoimmune diseases through their induced counterparts in mice, namely rheumatoid arthritis (RA) and multiple scler

This essay reflects on issues of contemporaneity and on the possibilities and limitations to pass judgment on the time you live in. The essay won first prize in HSFR's essay contest for young Ph.D. students in 1998.

The partly hot-water driven CO2 capture plant offers a significant potential for improvement in performance when implemented in a combined-cycle power plant (CCPP). It is possible to achieve the same performance with a dual-pressure steam cycle as in a triple-pressure unit. Even a single-pressure plant can attain an efficiency competitive with that achievable with a triple-pressure plant without t

When a Virtual Environment (VE) is designed, decisions regarding the navigation of the viewpoint, interaction with objects, and the behavior of the VE itself are made. Each of these can affect the usability and the cognitive load on the user. A VE that had previously been constructed as a prototype tool for the assessment of brain injury has been studied to establish the consequences of such desig

Steady flow in axial one-stage turbines is assessed numerically and experimentally. The simulations are performed on coarse meshes using a standard numerical approach (3D, steady state, kε-turbulence model, wall function at solid boundaries). In order to allow for conclusions drawn from these rapid numerical studies, the approach was compared with an explicit LDA (Laser Doppler anemometry) mapping

This study considers detection of polyproline type II secondary structures from protein sequences. This difficult problem was handled with multilayer perceptron neural networks, which were found to be useful for such bioinformatics studies. Polyproline II secondary structures have not previously been tried to be predicted from sequences.

AIMS: To compare the clinical characteristics of Type 2 diabetes (T2DM) between immigrants from the Middle-East and Swedish patients. METHODS: The study group included 450 consecutive patients with T2DM, 379 Swedish-born aged 61 +/- 12 years and 71 patients originally from the Middle-East aged 50 +/- 11 years from the diabetes clinic of Malmo University Hospital. RESULTS: Onset of diabetes had occ

Scope of practice and in-country distribution of surgical providers in low-income countries remains insufficiently described. Through a nationwide comprehensive inventory of surgical procedures and providers in Sierra Leone, we aimed to present the geographic distribution, medical training, and productivity of surgical providers in a low-income country.