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Joint channel and data estimation for asynchronous GSM users

In multiple-access communication systems co-channel interference can be mitigated by applying multiuser detection instead of treating the interference as additive noise [1]. In this paper we focus on downlink operation in a GSM-like TDMA network and investigate multiuser channel estimation and data symbol detection of two users that share the same physical channel in two adjacent cells. Such a sce

The water-supply system in Roman Pompeii

This study focusses on the urban infrastructure for water supply in Roman Pompeii. The water distribution network of lead pipes was constructed inside the city walls, at the time when the city was connected to an aqueduct. Life for the Pompeiians changed considerably when aqueduct water started running continuously in street fountains all around the city. The study is based on previous research an

Missbruk av dominerande marknadsställning i Sverige och EEC

I tre artiklar, som publicerade i samfundets tidskift 1976 analyseras de åtgärder, som med stöd av den nationella konkurrensbegränsningslagstiftningen riktas mot de marknadsdominerande företagen. Tre frågor lyftes fram: 1. I vilken utsträckning beivras traditionellt missbruk av en dominerande ställning; 2. Medger den interna lagstiftningen ingrepp mot företagssammanslagningar; 3. Ger de interna re

European Level Developments of Flexible Learning Models within Geographical Information Science (GIS) for Vocational Training

Leonardo da Vinci Community Vocational Training Action Programme’s pilot project within Geographical Information Science (GIS), should be implemented over a three year period, 2002-2005. The main objectives of the project is to establish co-operation between European Universities and GIS user organisations and to develop modularised courses intended for Internet based learning, establish links of

Echocardiography/Doppler for the evaluation of coronary artery function, left ventricular function and the relationship between early diastolic and systolic function

Popular Abstract in Swedish Ultraljudundersökning av hjärtat (ekokardiografi) har under det senaste decenniet fått en alltmer framträdande roll i diagnostiken av hjärtsjukdomar och används ofta för att vägleda medicinska beslut inom hjärtsjukvården. Ekokardiografi är av central betydelse framförallt vid undersökning av vänsterkammarens pumpförmåga (systoliska funktion) och hjärtklaffarnas funktionTwo specific areas of development in echocardiography are assessment of left ventricular (LV) diastolic function and myocardial ischemia. This thesis describes echocardiographic methodology in these two areas. In the first study, two new echocardiographic methods, the early diastolic flow propagation velocity (Vp) and the early diastolic atrioventricular plane downward slope (EDS), were tested as