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This paper reports improved separation efficiency of an ultrasonic standing wave separator microchannel array by means of ultrasonic far field excitation. By putting an aluminium spacer between the transducer and the channel array, the acoustic power transmission region is moved into the ultrasonic far field decreasing the local intensity variations which is induced in close vicinity to the transd

This paper suggests an approach to conceptualize problems of unsustainability situations by embedding the Drivers-Pressure-State-Impact-Response (DPSIR) scheme within a system of jurisdictional levels represented by Torsten Hägerstrand’s system of nested domains. Taken together these frameworks offer one way to decipher complex situations at different levels by identifying specific problem areas,

Does the use of translation exercises lead to enhanced L2 morphosyntactic accuracy? This paper presents some of the findings from a longitudinal, experimental project investigating the effect of translation as an L2 teaching/learning method on the morphosyntactic accuracy of advanced Swedish (L1) learners of English (L2). The subjects were first-year students of English at a Swedish university, an

Abstract in UndeterminedAn experiment is described where the participants were presented with pictures of four different objects and were also allowed to handle the objects while their brain activity was recorded by means of EEG. The objects were also evaluated by means of semantic scales. When the objects were visually displayed significant effects appeared in the posterior part of the brain, but

A new approach to low-complexity channel estimation in orthogonal-frequency division multiplexing (OFDM) systems is proposed. A low-rank approximation is applied to a linear minimum mean-squared error (LMMSE) estimator that uses the frequency correlation of the channel. By using the singular value decomposition (SVD) an optimal low-rank estimator is derived, where performance is essentially preser

Popular Abstract in Swedish Bakgrund Neonatal intensivvård är under ständig utveckling, vilket medfört att allt mindre barn överlever efter att ha fötts prematurt. Ett tydligt mått på detta är att gränsen för livsduglighet (den gestationsålder då individen beräknas ha 50% chans att överleva) har skjutits bakåt till att under de senaste två decennierna ligga runt graviditetsvecka 24. Barn som föds Although advances in neonatal care have resulted in increased survival rates among extremely preterm infants (born < 28 gestational weeks), they still face substantial morbidity risks during the neonatal period. The question of possible later outcomes is a key issue faced by health care professionals working with these infants. Objectives The objective of the present thesis was to explore develo

Investigation of travel agent (~System) Task-related utterances reveals intonational contours where focal accents occur on information given previously in the dialogue by the client (~User). The accentuation can be related to the interactive nature of dialogue where the information holder picks up on a Task-related topic introduced by the client and comments on it in an engaged manner.