Search for dissertations about: "Per Hiselius"
Found 2 swedish dissertations containing the words Per Hiselius.
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1. Acoustical properties of earplugs
Abstract : In this study an experimental setup for measurements of high impedance objects in ducts, yielding the acoustical Two-Port properties of the object, is applied to earplugs. A frequently used experimental setup for measuring objective acoustical properties of earplugs is that of artificial ears. Great effort is spent on duplicating the human ear. READ MORE
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2. External costs of transports imposed on neighbours and fellow road users
Abstract : This thesis consists of an introductory chapter and four research papers, summarized as follows. The overall purpose is to study various external effects of the transport system; effects that are not considered (or not fully considered) today. READ MORE