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Spatial and temporal dynamics of subarctic birch forest carbon exchange

Popular Abstract in English The long-term stability of the global terrestrial carbon sink has been a matter of concern in that a weakening would have serious consequences for atmospheric CO2 concentrations and, hence, for further changes in climate. High northern latitudes are of special importance for the global carbon budget as they store large amounts of organic matter in the soil and are expecHigh northern latitudes are of special importance for the global carbon budget as they store large amounts of organic matter in the soil and are expected to be the most strongly affected by climate change. Here we investigate carbon exchange in the subarctic mountain birch forest growing on the limit where tree growth is possible. The study sites are located close to the Abisko village in norther

Introducing the Concept of Design for Packaging Logistics

Product design, packaging and logistics have a significant impact on the efficiency and effectiveness of supply chains. The packaging design is usually limited by the product characteristics hence influencing possible logistical solutions. A need has been recognized to consider packaging and logistical issues early in the product development process. Case studies involving companies from the Swedi

The influence of tool micro-geometry on stress distribution in turning operations of AISI 4140 by FE analysis

Abstract This paper aims to gain a better understanding of the impact different micro-geometries has on stress distribution in cutting tools. Both principal and effective stress distribution are studied since these quantities have a major impact on the occurrence of damages in the cutting tool such as crack formation, flaking, chipping, breakage and plastic deformation. The development of a stagna

Staging Shakespeare's Comedies with EFL University Students

This thesis takes as its point of departure an elective course in English: 'Drama in Practice - Shakespeare on Stage'. The course combines theory and practice in that it contains (on the one hand) lectures and written work about one of Shakespeare’s comedies, and (on the other hand) an on-stage part with rehearsals of the same play, culminating in a performance, in costume, before an audience. The

Dygdernas renässans

Abstract in Undetermined Dygdernas renässans är en antologi som analyserar centrala dygder som exempelvis klokhet, mod, mildhet, lydnad, kyskhet, ödmjukhet och tålamod i ett långt tidsperspektiv och i relation till vår samtid.

Aurea Norma

The aim of this thesis was mainly to find out the conditions under which a modernisation of the standardisation process could realistically take place, in order to allow the inclusion of parameters that are currently ignored. The necessary balance between private interests and public good issues, and the need to take into the discussions leading to the adoption of standards, their generally heavy

IP security – a disruptive or sustaining technology shift?

The shift towards IP-based security products and systems is often touted as an example of a disruptive technology that have had – and will continue to have – profound consequences for the electronic security industry as a whole. Based on Clayton Christensen’s theories on disruptive innovation, this document argues that the in- troduction of IP-based technology has different effects depending on th

Parametric Study of Emissions from Low Calorific Value Syngas Combustion, with Variation of Fuel Distribution, in a Prototype Three Sector Burner

The emission composition is measured for a prototype burner while varying the equivalence ratio in discrete portions of the burner. The burner is a three sector system, consisting of a separate igniter, pilot/stabilizer and main burner. The design allows for discrete control of equivalence ratio in each of the three sectors. The ignition sector, designated RPL (Rich- Pilot-Lean), operates from ric

Reconciliation and the Search for a Shared Moral Landscape – An exploration based upon a study of Northern Ireland and South Africa

Popular Abstract in Swedish Denna avhandling fokuserar på frågan om försoning och (sökandet efter) värdegemenskap. Värden sätts in i ett större sammanhang, i ett så kallat "moraliskt landskap". Avhandlingen beskriver först olika hinder för försoning och dialog i Nordirland och Sydafrika i form av följande komponenter av det moraliska landskapet: -Erfarenheter (av trauma, segregation, ojämlikhet) -In Northern Ireland and South Africa obstacles to reconciliation were found in these elements of a “moral landscape”: – Experiences of trauma, separation and inequalities, – Divergent views of the conflict and of “the other”, – Opposing identifications and loyalties, – Norms for interaction, – Contestant interpretations of values such as “peace” and “justice”. This study describes how these obstac

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Abstract in Spanish En aquellas operaciones robóticas en las que un robotmanipulador interactúa con su entorno resulta de extremadaimportancia poder controlar la fuerza que ésterealiza. Normalmente, para poder llevar a cabo este control,se suele colocar un sensor de fuerza en la muñeca delmanipulador, cerrando de esta forma el lazo de control.En lo que se refiere a estos sensores, uno de los princ

Study of a Large Deformable Mirror Concept

Popular Abstract in Swedish Deformerbara speglar som används i teleskop är förhållandevis små med en diameter på 10-30 cm, med undantag av ett fåtal. Den största deformerbara spegeln som är integrerad i ett teleskop idag, har en diameter på 911 mm och återfinns i Large Binocular Telescope. I designen för E-ELT har en deformerbar spegel med en diameter på dryga 2 m inkluderats och GMT har ett antalIt is attractive to integrate a large deformable mirror for adaptive optics into an astronomical telescope rather than using relay optics within an auxiliary instrument. However, the resulting large deformable mirror can be expensive, particularly for extremely large telescopes. We have pursued a low-cost approach using force actuators connected to the back of the deformable mirror through suction

Footwear for cold weather conditions

In cold climates, all user requirements for footwear (insulation, waterproofing, vapour permeability, drying, etc.) cannot be met easily due to their conflicting nature. Defining user conditions is important. Cold may be roughly divided into the three ranges (>+5; +5 to –10;