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Sound reduction in double walls at low frequencies - A parametric study

The sound transmission in double walls at low frequencies is studied using a detailed geometric model, based on FEM. The model simulates the experiments carried out to determine the sound reduction index of the wall. The wall properties effect on the sound transmission loss is investigated and also how the sound reduction is affected by the dimensions of the connecting rooms.

Kandidatuppsats i informatik. Riktlinjer

En kandidatuppsats innebär att studenterna ska visa att de kan formulera en forskningsfråga. Vidare att de kan lägga upp och genomföra en undersökning. Undersökningen och resultaten från den ska rapporteras enligt de former och riktlinjer som gäller för akademiska och/eller vetenskapliga rapporter. Det måste finnas en beviskedja, som börjar med forskningsfrågan och avslutas med slutsatser. I en k

New Methods for Automated Interpretation of Electrocardiograms and Lung Scintigrams

Popular Abstract in Swedish Datorer har blivit en viktig del inom den moderna medicinen. Resultat från patientundersökningar såsom bilder, kurvor och mätvärden bearbetas ofta av datorer och presenteras sedan på ett överskådligt sätt för läkaren som grundar sitt svar på bland annat denna information. Denna doktorsavhandling beskriver hur datorn kan hjälpa till vid själva tolkningen av undersökningThe principal purposes of the studies reported in this thesis were to develop new methods to make computerised decision support systems in medicine both more reliable and fully automated. These aims were pursued in the belief that the solution to these problems will lead to an increased clinical use of such systems resulting in benefit to both patient and physician. In the first two studies, meth

A low-power 8-bit folding A/D converter with improved accuracy

In this paper, an accuracy improving method for calibration of mismatch-induced errors in folding A/D converter is presented. With dynamic auto-zero calibration for the folder, the transistor size of folding differential input pairs can be reduced considerably while keeping integral nonlinearity (INL) low. Using this technique, an 8-bit folding A/D converter is designed and simulated in MATLAB. Be

The Nom/Acc alternation in Germanic

This paper describes the distribution of accusative case and discusses the nature of the nominative / accusative distinction in the standard Germanic languages. In addition, it illustrates and discusses the well-known fact that inherent accusatives and certain other types of accusatives do not behave in accordance with Bruzio’s Generalization. In spite of these Non-Burzionian accusatives, there is