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In this work, the aerodynamics and particle flow patterns in the human nose are simulated by Computational Fluid Dynamics (CFD). The simulations were carried out by use of Fluent, and the volume grid was generated by Tgrid. To be able to perform successful CFD-calculations of the nose, construction of a proper surface grid of the nasal cavity was mandatory.(More)
The project “Road Traffic Snapshot” concerns a possible future service for counting vehicles in satellite images and generating traffic information based on these counts. The contents of the project has been to: (i) Define user requirements and technical specifications for the service; (ii) Make a service case implementation and; (iii) Validate and evaluate(More)
Perioperative mortality in coronary artery bypass grafting is usually caused by reduced left ventricular function due to regional myocardial ischemia or infarction. Post-operative graft occlusion is a well-known problem in coronary surgery. A sensitive tool to detect graft occlusion and monitor myocardial function may give the opportunity to revise(More)
Intraoperative MRI has recently entered the operating room as a new imaging modality. Customized visualization systems might further facilitate the use of this imaging technology. A visualization system for use in the interventional MRI has been developed, providing a virtual environment for surgical navigation using real-time images and for controlling the(More)
The goal of this study was to estimate the three-dimensional (3D) temperature distribution in liver cryolesions and assess the margin of the transition zone between the tumoricidal core of the lesion and the surrounding unfrozen tissue, using criteria proposed in the literature. Local recurrences after liver tumor cryoablation are frequent. Temperatures(More)
Nasal delivery is considered for an increasing number of existing and new drugs and vaccines, but current nasal delivery devices have major disadvantages. The Norwegian company OptiNose AS is developing a novel concept that challenges traditional delivery systems. The patended bi-directional delivery system improves drug and vaccine distribution to the(More)
Ground cover classification based on a single satellite image can be challenging. The work reported here concerns the use of multitemporal satellite image data in order to alleviate this problem. We consider the problem of vegetation mapping and model the phenological evolution of the vegetation using a Hidden Markov Model (HMM). The different vegetation(More)