Sökning: "audio frequency"
Visar resultat 1 - 5 av 46 avhandlingar innehållade orden audio frequency.
1. Modelling approaches for audio frequency power transformers
Sammanfattning : The development of HVDC converters, local generation andtractions systems increases the demand for power converters.While a lot of studies have been conducted on the powerelectronics, there are still open questions concerning thecontained power transformer that operates at a few kilohertz. LÄS MER
2. Sparse Modeling Heuristics for Parameter Estimation - Applications in Statistical Signal Processing
Sammanfattning : This thesis examines sparse statistical modeling on a range of applications in audio modeling, audio localizations, DNA sequencing, and spectroscopy. In the examined cases, the resulting estimation problems are computationally cumbersome, both as one often suffers from a lack of model order knowledge for this form of problems, but also due to the high dimensionality of the parameter spaces, which typically also yield optimization problems with numerous local minima. LÄS MER
3. Perceived Accessibility : Capturing the Traveller Perspective
Sammanfattning : The main purpose of this thesis is introducing and proposing perceived accessibility as an important and so far overseen complement to conventional, objective accessibility in sustainable transport. Perceived accessibility is defined as the possibilities and ease of engaging in preferred activities using different transport modes. LÄS MER
4. Towards Measuring Apps' Privacy-Friendliness
Sammanfattning : Today's phone could be described as a charismatic tool that has the ability to keep human beings captivated for a considerable amount of their precious time. Users remain in the illusory wonderland with free services, while their data becomes the subject to monetizing by a genie called big data. LÄS MER
5. Ljud som samarbetspartners : En intra-aktiv studie om yngre barns ljudutforskande i förskolan
Sammanfattning : The purpose of this study is to examine children's intra-active relations with sounds in an explorative work at a preschool (1-to 2-year old children) analyzed through the lens of agential realism (Barad 2007, 2008), and to examine its didactical effects. This study has a transdisciplinary and cross-disciplinary design based on preschool didactics and the natural sciences, mainly physics andbiology. LÄS MER