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Popular Abstract in Swedish Tvärströms mikrofiltrering är en teknik för att avskilja partiklar med en storlek på ungefär en mikrometer (en tusendel av en millimeter) från vätskor. Exempel på tillämpningar är avskiljning av jästceller från öl, och avskiljning av bakterier från mjölk. I mikrofiltrering används membran (filter) med porer med en storlek på 0.1 - 10 mikrometer. Mikrofiltreringsmembran Crossflow microfiltration is a technique to separate suspended particles (or cells or droplets) from liquids by use of a membrane that is permeable for the liquid but impermeable for the particles. The permeate flow drives particles to the membrane surface, where they may be deposited and form a fouling layer. To limit the growth of this fouling layer a flow is applied tangentially to the membrane

Numerical simulations coupled with LDV experiments were carried out to investigate a slot jet issued into a cross flow, which is relevant in the film cooling of gas turbine combustors. The film cooling fluid injection from slots or holes into a cross-flow produces highly complicated flow fields. In this paper, the time-averaged Navier-Stokes equations were solved on a collocated body-fitted grid s

As oncological treatment might impair the patients' fertility, male cancer patients are offered to cryopreserve semen prior to treatment. Impaired sperm DNA quality is associated with reduced fertility, and in case of assisted reproduction, sperm DNA integrity may have an impact on choice of method. Therefore, we have assessed sperm DNA integrity in cancer patients, comparing pre- and post-treatme

Limited data exist on surgical providers and their scope of practice in low-income countries (LICs). The aim of this study was to assess the distribution and productivity of all surgical providers in an LIC, and to evaluate correlations between the surgical workforce availability, productivity, rates, and volume of surgery at the district and hospital levels.

The results of numerical simulations of a positive streamer development in air in a weak and uniform electric field are presented. Streamer dynamics is considered in an electrode gap of 33 mm in length and the configuration was 'protrusion on a plate-plate'. This particular configuration was chosen in order to perform direct comparison between simulated results and experimental data. The electrost

Objective. To investigate the inter- and intra-observer reliability of both qualitative and quantitative parameters used in the assessment of nail-fold capillaroscopy images.Methods. Fifty mosaic nail-fold images of healthy controls (n = 10), patients with primary RP (n = 10) and SSc (n = 30) were assessed in random order by two blinded observers on two occasions at centres in Sweden, UK and The N

Rotationally resolved spectral lines in the C-X(1,0) band of carbon monoxide are investigated under high resolution using a coherent vacuum ultraviolet laser source, continuously tunable near 107 nm. Transition frequencies are determined by calibrating against a reference standard of iodine lines, recorded with saturation spectroscopy in the visible range, yielding an absolute accuracy of 0.003 cm

The aim of this paper is to chart the relevant studies and research questions concerning the relationship between ICTs and Mobility in Everyday Life – a concept defined and delineated in a previous paper An Agenda for ‘Mobility in Everyday Life’ for ICT Researchers (Haddon, 2000a).

The new European Commission took office on 1 November 2014, with a number of structural changes including the creation of a First Vice-President, a responsibility given to the former Dutch Foreign Minister Frans Timmermans. The First Vice-President will ensure that every Commission proposal respects the principles of subsidiarity and proportionality. If the Commission pays more attention to the pr

In trying to understand any aspect surrounding the success and failure of information systems practice, concepts of organisational analysis become increasingly important. Many issues arise and must be dealt with when an information system is to be developed and implemented. In order to avoid information system failures information system analysts should adopt an approach, which exploits the intrin