Sökning: "Higher frequencies"
Visar resultat 1 - 5 av 454 avhandlingar innehållade orden Higher frequencies.
1. Sound Insulation at Low Frequencies
Sammanfattning : The airborne sound transmission through building partitions at low frequencies was studied. The definition of the sound reduction index as a measure of sound insulation has been examined by means of extensive numerical simulations in 3-D domains. The simulations were based on the wave theoretical acoustics. LÄS MER
2. Optimization techniques for future cellular systems : Harnessing the gains from higher frequencies, increased spectral efficiency, and densification
Sammanfattning : .... LÄS MER
3. Microsystem technology for microwave applications at frequencies above 100 GHz
Sammanfattning : The rapid development of wireless technology today shows an increasing need forelectromagnetic components operating at even higher frequencies. Higher frequencies offer wider bandwidth, higher spatial resolution and are needed for technologies such as automotive car radars, wireless media communication and body scanners. LÄS MER
4. Why so different? - Aspects of voice characteristics in operatic and musical theatre singing : Aspects of voice characteristics in operatic and musical theatre singing
Sammanfattning : This thesis addresses aspects of voice characteristics in operatic and musical theatre singing. The common aim of the studies was to identify respiratory, phonatory and resonatory characteristics accounting for salient voice timbre differences between singing styles. LÄS MER
5. Genetic variation, polyploidy and hybridization in Scandinavian Anthericum ramosum and A. liliago (Anthericaceae)
Sammanfattning : In this thesis, I investigate the differences in breeding system, levels of genetic variation and hierarchical structure of genetic diversity between Anthericum ramosum and A. liliago. The two species differ in ploidy level and flowering time, but have similar habitat preferences, reproductive biology and geographic distributions in Scandinavia. LÄS MER