| 1. |
- Albernaz, Daniel, et al.
(author)
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Multirelaxation-time lattice Boltzmann model for droplet heating and evaporation under forced convection
- 2015
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In: Physical Review E. Statistical, Nonlinear, and Soft Matter Physics. - 1539-3755 .- 1550-2376. ; 91:4
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Journal article (peer-reviewed)abstract
- We investigate the evaporation of a droplet surrounded by superheated vapor with relative motion between phases. The evaporating droplet is a challenging process, as one must take into account the transport of mass, momentum, and heat. Here a lattice Boltzmann method is employed where phase change is controlled by a nonideal equation of state. First, numerical simulations are compared to the D-2 law for a vaporizing static droplet and good agreement is observed. Results are then presented for a droplet in a Lagrangian frame under a superheated vapor flow. Evaporation is described in terms of the temperature difference between liquid-vapor and the inertial forces. The internal liquid circulation driven by surface-shear stresses due to convection enhances the evaporation rate. Numerical simulations demonstrate that for higher Reynolds numbers, the dynamics of vaporization flux can be significantly affected, which may cause an oscillatory behavior on the droplet evaporation. The droplet-wake interaction and local mass flux are discussed in detail.
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| 2. |
- van der Aa, Bart, 1985, et al.
(author)
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Numerical comparison of traditional noise screens and refractive graded index sonic crystal noise barriers in downwind sound propagation
- 2012
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In: Proceedings of the 41st International Congress and Exposition on Noise Control Engineering (InterNoise 2012), 19-22 August 2012, New York City, NY, USA. - 9781627485609 ; 9, s. 7183-7189
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Conference paper (peer-reviewed)abstract
- Sound propagation over a traditional noise screen in downwind conditions is numerically investigated and compared with a graded index sonic crystal (GRIN SC) noise barrier. The latter type of noise barrier creates a shadow zone by upward refraction of waves propagating through. Upward refraction is here achieved by varying the cylinder radius with height hence creating a graded index medium which effective sound speed varies accordingly. Contrary to GRIN SC noise barriers, traditional noise screens aim at improving the sound environment by screening sound emanating from, e.g. traffic noise sources. It has been shown that in downwind propagating conditions traditional solid screens introduce large wind speed gradients above the barrier top, which may give rise to downward refraction of acoustic waves into the shadow zone. In two-dimensional space, wind speed profiles of a traditional screen and an acoustically equivalent GRIN SC noise barrier are numerically computed using computational fluid dynamics. The modeled background flow, treated as an effective sound speed, is then used as input parameter for acoustic propagation calculations. The acoustic performance of both structures including a non-uniform background flow has been evaluated for a simple outdoor setup assuming a hard reflecting ground surface and a single noise source.
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| 3. |
- Bülow, Pia, 1959-
(author)
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"Röster" i samtal om arbetsförmåga : Kommunikativa processer i avstämningsmöten
- 2009
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In: Socialmedicinsk Tidskrift. - 0037-833X .- 2000-4192. ; 86:3, s. 275-287
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Journal article (peer-reviewed)abstract
- Artikeln bygger på material från en studie om avstämningsmöten – ett institutionellt flerpartssamtal där Försäkringskassan, försäkrad och ytterligare minst en part t.ex. arbetsgivaren bedömer den enskildes arbetsförmåga. Utifrån begreppet ”röst” analyserades nio inspelade avstämningsmöten. Ett kommunikativt mönster framträdde med fyra olika röster: medicinens, arbetslivets, regelverkets och livsvärldens röst. Den mångröstade karaktären är sannolikt av stor vikt för att förstå komplexiteten, dynamiken och svårigheterna som hör ihop med dessa möten. Studien är gjord genom Rikscentrum för arbetslivsinriktad rehabilitering (RAR), Linköping.
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| 4. |
- Ghaderi, Ata, et al.
(author)
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Prevalence, incidence and prospective risk factors for eating disorders
- 2001
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In: ACTA PSYCHIATRICA SCANDINAVICA. - 0001-690X. ; 104:2, s. 122-130
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Journal article (peer-reviewed)abstract
- Objective: To examine the prevalence, incidence and prospective risk factors for eating disorders (ED) among young adult females. Method: Using a prospective design, a randomly selected sample of 1157 females (18-30 years) from the general population was
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| 5. |
- Huhtanen, Pekka
(author)
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A meta-analytical evaluation of the regulation of voluntary intake in cattle fed tropical forage-based diets
- 2014
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In: Journal of Animal Science. - : Oxford University Press (OUP). - 0021-8812 .- 1525-3163. ; 92, s. 4632-4641
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Journal article (peer-reviewed)abstract
- The objective of this work was to use a meta-analytical approach to evaluate the regulation of voluntary intake in cattle fed tropical forage-based diets using dietary digestibility and bulkiness. Treatment mean values were collected from 53 studies with lactating dairy cows and 126 studies with feed-lot growing and finishing cattle that were published in Brazil from 1990 to 2012. In all studies animals were fed ad libitum with diets based on tropical forages. The dataset was analyzed according to meta-analysis techniques, using linear and nonlinear mixed models. The main independent variables were the D-value and the B-value of the diets. The D-value corresponds to the dietary content of digested OM and is associated with energy content of the diet. The B-value is defined as the undigested fraction of NDF and indicates bulkiness of the diet. The DMI presented significant associations with both D-value and B-value. In the first case, DMI intake responded quadratically to the D-value (P = 0.042). On the other hand, DMI decreased linearly as the B-value of the diet increased (P = 0.004). Two new variables called Di and Bi were created to express the intake in terms of D-value and B-value units. A conceptual explicative model was developed from Di and Bi. This model showed that DMI is simultaneously regulated by both physical constraints and metabolic feedbacks. There were differences in the intake pattern of lactating cows and growing cattle.
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| 6. |
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| 7. |
- Modéer, Kjell Åke
(author)
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Shari'a and Nordic legal contexts
- 2016
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In: Shari'a As Discourse : Legal Traditions and the Encounter with Europe - Legal Traditions and the Encounter with Europe. - 9781315608891 - 9780754679554 ; , s. 89-94
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Book chapter (peer-reviewed)
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| 8. |
- Modéer, Kjell Å
(author)
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Stil är inte bara form
- 2003
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In: Malmögripen. - 1402-909X. ; :1, s. 12-13
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Journal article (pop. science, debate, etc.)
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| 9. |
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| 10. |
- Plicanic, Vanja, et al.
(author)
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Diversity mechanisms and MIMO throughput performance of a compact six-port dielectric resonator antenna array
- 2010
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In: 2010 International Workshop on Antenna Technology (iWAT). - 9781424448838
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Conference paper (peer-reviewed)abstract
- This paper demonstrates multiple-input-multiple-output (MIMO) throughput performance of a six-port dielectric resonator antenna (DRA) array for Wireless-LAN applications in a measured indoor office environment when a six-port dual-polarized patch array is used at the transmitter. The throughput was obtained using an IEEE802.11n/Draft 5.00 simulator for measured channels with different antenna and propagation setups. The throughput performance of the patch-DRA array set-up is found to be similar to that of a set-up with six-port monopole arrays at the receive and transmit ends in the non-line-of sight (NLOS) environment. The compact design of the DRA array causes lower port efficiencies relative to those of the monopole array, notwithstanding the compact DRA array is shown in this paper to effectively utilize angle, polarization and spatial diversity mechanisms to achieve comparable throughput performance.
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