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Computational aeroacoustics of a s eparate flow exhaust system with eccentric inner nozzle

A major issue related to our modern way of life is the noise caused by jet engine powered airliners. Methods to reduce the jet noise were proposed in the last decades starting with the introduction of high bypass turbofan engines. A numerical investigation of flow and acoustics of a separate flow exhaust system is performed in the present paper. The goal is to investigate how the noise generated b

Depth-Computations from Polyhedral Images

A method is developed for the computation of depth maps, modulo scale, from one single image of a polyhedral scene. Only affine shape properties of the scene and image are used, hence no metrical information. Results from simple experiments show good performance, with exactness and robustness. It is also shown how the underlying theory may be used to single out and characterise certain singular si

ASD, Eating Problems, and Overlap with Anorexia and Bulimia Nervosa

Abnormal eating behaviors are overrepresented in the autism spectrum disorders, including food refusal, pica, rumination, and selective eating. Those disturbances can have detrimental complications and are often resistant to treatment. In autism spectrum disorders the background factors to eating disturbances are more complex than in the general child population, and sensory abnormalities, rituali

The Library Treasure Hunt: Reach for the Stars. Introducing First Year Students to the Landscape of Scientific Information

One important task for the librarians at Physics and Astronomy Library at Lund University is to teach the students about the library and its resources. The traditional lectures and tours of the library just weren’t working. The library competes with many other introductory activities, such as general orientation, and social events. The aim of the Treasure Hunt is to present the library in a useful