Wellbeing, comfort and safety in outdoor shoes have always been based on parameters that vary from person to person (male, female, weight, build, etc.). The aim of the project OutFeet was to go beyond this subjective approach by taking a merely qualitative analysis to a higher scientific level. The …

BACKGROUND AND PURPOSE: Radiotherapy of the head and neck is challenged by the relatively large number of organs-at-risk close to the tumor. Biologically-oriented objective functions (OF) could optimally distribute the dose among the organs-at-risk. We aimed to explore OFs based on multivariable normal …

Purpose/objective: Stereotactic radiosurgery of brain metastases requires highly conformal dose distributions. Besides beams setup, characteristics of the linear accelerator collimator may also play a role. In this study we compared the impact of leaf width on the dose outside the target for stereotactic …

Epidemiological miner cohort data used to estimate lung cancer risks related to occupational radon exposure often lack cohort-wide information on exposure to tobacco smoke, a potential confounder and important effect modifier. We have developed a method to project data on smoking habits from a case-control …

Recently, Lévy walks have been put forward as a new paradigm for animalsearch and many cases have been made for its presence in nature. However,it remains debated whether Lévy walks are an inherent behavioural strategyor emerge from the animal reacting to its habitat. Here, we demonstratesignatures …

Background and purpose: Treatment plan verification of intensity modulated radiotherapy (IMRT) is generally performed with the gamma index (GI) evaluation method, which is difficult to extrapolate to clinical implications. Incorporating Dose Volume Histogram (DVH) information can compensate for this. …

Stormwaters, flowing into storm sewers, are known to significantly increase the annual pollutant loads entering urban receiving waters and this results in significant degradation of the receiving water quality. Knowledge of the characteristics of stormwater pollution enables urban planners to incorporate …

The main purpose of this thesis is to analyse Oasis’s future cash flow more accurately by using @Risk. Oasis is a complex Excel tool that has been developed by OfficeSpecialisten in cooperation with one of their clients. Oasis is an analysis tool which analyses future cash flow with the use of macros. …

Turbine blade cooling has been a topic of significant interest, as increasing turbine entry temperatures result in higher cooling requirements. The present numerical method divides the blade into a finite number of elements in the span and peripheral directions and solves the heat transfer fundamental …

PURPOSE: Advanced radiotherapy treatments require appropriate quality assurance (QA) to verify 3D dose distributions. Moreover, increase in patient numbers demand efficient QA-methods. In this study, a time efficient method that combines model-based QA and measurement-based QA was developed; i.e., the …