Filtyp
This thesis presents a study on performance analysis and optimal design of heat exchangers and heat exchanger networks. The study includes an experimental investigation of steam condensation in plate heat exchangers, optimal design of plate heat exchangers and plate-fin heat exchangers, and optimization of heat exchanger networks. In the experimental investigation of steam condensation in plate h
Laser Doppler velocimetry (LDV) measurement and large eddy simulation (LES) were used to study confined isothermal turbulent swirling flows in a model dump combustor. The aim was to gain deeper understanding of the flow and turbulence structures in dump combustors and to examine the capability of LES for prediction of turbulent swirling flows. A refractive index matching technique is used in the L
On January 16, 2008 DG Competition announced the initiation of a Sector Inquiry Council Regulation (EC) No 1/2003 of 16 December 2002 on the implementation of the rules on competition laid down in Articles 81 and 82 of the Treaty (Text with EEA relevance) OJ L 1, 04/01/2003 p. 1 (''Regulation 1'') Article 17. into the Pharmaceutical Industry which it had begun by conducting unannou
Denna uppsats baserar sig på en utredning av Försäkringskassan, som presenterades i maj 2005. Titeln var Utredning om könsneutralt och delat barnbidrag. Försäkringskassan hade fått i uppdrag av regeringen att utreda förutsättningarna för att göra lagstiftningen kring barnbidraget könsneutral och införa en möjlighet för föräldrarna att kunna dela bidraget mellan sig. Den nuvarande barnbidragslagsti
Växtätare kan påverka ekosystemprocesser, dels genom långsiktiga förändringar av växtsamhällets sammansättning, men också på kortare sikt genom derasmatspjälkning av organiskt material som cyklas genom markens nedbryderorganismer och tillbaka till de primära producenterna. Särskilt störreväxtätare har studerats i stor utsträckning, men i vissa ekosystem som skogar kan de mindre ryggradslösa växtätHerbivory can influence ecosystem processes, partly through long-term changes of the plant community compositions, but also more rapidly through the herbivores’ digestive alteration of the organic matter that is cycled through the soil and back to the primary producers. In the Subarctic mountain birch (Betula pubescens ssp. czerepanovii) forest (SMBF) in Northern Fennoscandia, outbreaks by the geo
In this work, we discuss the possibility of a new approach to measuring oxygen isotope ratios in fossil meteorite samples, specifically one based on nuclear reaction analysis (NRA). Variations of oxygen ratios within meteoritic chromite grains can help to determine the type of meteorite to which the grains originally belonged. In this work, we have evaluated the possibility to use the reaction O-1
CK2 is an extremely pleiotropic Ser/Thr protein kinase, responsible for the generation of a large proportion of the human phosphoproteome and implicated in a wide variety of biological functions. CK2 plays a global role as an anti-apoptotic agent, a property which is believed to partially account for the addiction of many cancer cells to high CK2 levels. To gain information about the CK2 targets w
Förhöjda temperaturer på höga breddgrader kan förändra koldynamiken i hela Arktis. Modellerade CO2 simuleringar visar att under nuvarande klimatförhållanden utgör Arktis en netto kolsänka, fast den stora utsträckningen samt fina geografiska heterogenitet lyfter upp osäkerhet kring dess status som CO2 sänka/källa i regionen. Förståelsen för arktiska koldioxidflödekan förbättras genom integrering avIncreased temperatures in high latitudes may alter the carbon dynamics throughout the Arctic. Modelled CO2 simulations show that current climate conditions constitute the Arctic a net carbon sink, though the large extent and fine landscape heterogeneity raise an uncertainty about the carbon sink/source status of the region. The understanding of Arctic CO2 fluxes can be improved through integration
In this master thesis computational fluid dynamic simulations of two plate heat exchanger channels have been performed in Ansys CFX. The full geometry of the channels has not been included, the channels were modeled with a flat geometry instead of a corrugated pattern. To account for the effect of the corrugation on the pressure drop, one-time pressure losses and momentum sources were added in the
The Horse Sector in Sweden today is growing and almost 10% of Sweden's population will be regularly in contact with horses. Interest in these animals is increasing all the time, which means that more people will also get in touch with the daily care of the horse. In the management of horses is heavy lifting and other strenuous movements regular. Something that has been overlooked in the horse
Tetra Pak is continuously working to increase the efficiency of the whole organisation. There is currently a general demand to improve by 20%. The number is not to be taken literately since efficiency is not defined nor is it specified how it should be measured. At Tetra Top the interpretation is that it is important to focus on efficiency and that it is up to individuals how and when it can be at
Aim: The overall aim was to investigate associations between bullying, violence and mental health among young people in Sweden. Specific aims were to investigate differences in exposure to peer victimization among disabled and non-disabled adolescents (Paper I), the influence of social support on the relationship between cyber harassment and mental distress among adolescents (Paper II), the associ
This study is done within the framework of a project aimed at developing a wearable device (a bracelet) intended to support sensory motor rehabilitation of children with visual impairments. We present an exploratory study of aesthetic/hedonistic preferences for sounds and touch experiences among visually impaired children. The work is done in a participatory setting, and we have used mixed methods
The present paper reports on a games workshop within the ABBI EU project involving children with visual impairments as co-creators. The created games show that it is possible to create fun, rich and social co-located games with wearable technology employing very simple interactivity. Having a device that makes a sound when you move allows for the creation of finding and avoiding games but also for
A 4 pi silicon bail for detection and identification of light charged particles in large multidetector gamma-arrays as EUROBALL is presented. The design is based on a N = 42 ball with 12 pentagons and 30 hexagons as used in the GASP array. The absorptive material for gamma-rays is minimized to the detector thickness of 300 or 500 mu m and a 0.63 mm ceramic backing. The geometrical coverage is desi
This paper describes a novel tool for eliciting user requirements early in the design process of mobile applications. The "Mobile Oracle", as we have called it, is intended to help developers and designers obtain a better understanding of what the user wants at different points in space and time. It is an extension of a lo-fi version of the well-established Wizard of Oz technique, but it adds an "
Introduction Printed from: Hommage à Wlodek. Philosophical Papers Dedicated to Wlodek Rabinowicz. Ed. T. Rønnow-Rasmussen, B. Petersson, J. Josefsson & D. Egonsson, 2007. www.fil.lu.se/hommageawlodek 1 SUPERIORITY IN VALUE AND THE REPUGNANT CONCLUSION∗ Karsten Klint Jensen Danish Centre for Bioethics and Risk Assessment kkj@foi.dk ABSTRACT: James Griffin has considered a weak form of superiority i
https://www.fil.lu.se/hommageawlodek/site/papper/KlintJensenKarsten.pdf - 2026-07-12
