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On the bijectivity of thin-plate splines

The thin-plate spline (TPS) has been widely used in a number of areas such as image warping, shape analysis and scattered data interpolation. Introduced by Bookstein (IEEE Trans. Pattern Anal. Mach. Intell. 11(6):567–585 1989), it is a natural interpolating function in two dimensions, parameterized by a finite number of landmarks. However, even though the thin-plate spline has a very intuitive int

Computer simulation - a tool for optimisation of ventilator setting in critical lung disease

Popular Abstract in Swedish Respiratorbehandling är nödvändig då en patient på grund av kronisk eller akut lungsjukdom inte själv kan upprätthålla ett adekvat gasutbyte. Bakomliggande orsaker kan vara kronisk obstruktiv lungsjukdom, lunginflammation, blodförgiftning eller trauma. Respiratorbehandling kan i sig orsaka ytterligare skador på redan sjuka eller skadade lungor. Bland de faktorer som harIncreasing attention is paid to mechanical ventilation as one cause behind aggravation of lung injury. Lung protective ventilation can be achieved e.g. by minimising tidal lung collapse and re-expansion and by the use of small tidal volume allowing some degree of permissive hypercapnia. The ventilator and the sick lung comprise a very complex system. Identification of a ventilator setting that wit

Biologisk mångfald

Klimatförhållandena har stor betydelse för om en art kan ha livskraftiga populationer på en viss plats, både genom direkta effekter på organismerna, och indirekta effekter på andra arter i ekosystemet, det vill säga arter som den är beroende av, predatorer och konkurrenter. Den biologiska mångfalden är viktig för ekosystemens förmåga att klara klimatförändringar. Vårt användande av landskapet ka

Yrkesutbildning för morgondagens arbetsliv

Det politiska intresset för gymnasial yrkesutbildning och framför allt för lärlingsutbildning fortsätter att vara högt. Sedan 1990-talet har yrkesutbildningen i Sverige genomgått flera omfattande reformer. År 2011 infördes reguljära lärlingsutbildningar. Hösten 2013 blev lärlingsutbildningen föremål för nya politiska initiativ. Ambitionen är att genomföra ett »systemskifte « och lägga upp lärling

Coarse-Grained Models of Ionic Solutions

Popular Abstract in English Typically, when we speak of ionic solutions we mean a salt (as solute) dissolved in some liquid (the solvent). In this thesis, we predominantly consider ionic solutions for which there is no solvent---room-temperature ionic liquids (RTILs). It follows that these liquids have a large concentration of charged particles, a property that causes them to be effective electrRoom-temperature ionic liquids (RTILs) are compounds composed entirely of ions, which are liquid at temperatures below 100 degrees Celsius. Their high ionic strength and strong coupling make them useful for a number of applications, e.g. as electrolytes in supercapacitors. These properties also make them interesting subjects for theoretical research, as the canonical theories of the electrical dou

Techno-Economic Aspects of a Wood-to-Ethanol Process: Energy Demand and Possibilities for Integration

Full-scale ethanol production from spruce has been evaluated, mainly from an energy perspective, using an Aspen Plus-model including all major process steps. The model input was based on data recently obtained on lab scale or in a process development unit. A number of different process configurations are presented in order to demonstrate how heat integration within the ethanol process significantl

Decentralized Provision of Primary Healthcare in Rural Bangladesh: a study of government facilities

Bangladesh has made significant progress in health indicators in recent years in spite of her low level of income. This is mainly due to the commitment of the state supported by donors in providing preventive care with respect to child health and family planning. However, there are serious problems related to both access and quality of curative care that hurt the poor most. Infrastructures for ser

System dynamics and goal-oriented measurement: a hybrid approach

Goal-oriented measurement following the Goal/Question/Metric (GQM) approach is a well-defined and powerful tool in software management and decision-support. This chapter proposes the integration of GQM with a mature software process simulation approach, System Dynamics, in order to further enhance software managers' analytic, explorative, and decision-making capability. The proposed hybrid approac