Sökning: "kanal"
Visar resultat 1 - 5 av 73 avhandlingar innehållade ordet kanal.
1. Baltzar von Platen, Thomas Telford och Göta kanal : Entreprenörskap och tekniköverföring i brytningstid
Sammanfattning : The Gotha Canal was built during 1810-1832 and it was the biggest building enterprise that Sweden up to that time had undertaken. To a poor and preindustrialised country the whole project was economically as well as technically a tremendous challenge. LÄS MER
2. Coding and Transmission Strategies for Secrecy
Sammanfattning : In this thesis we consider several problems relating to information theoretic security. The wiretap channel is the simplest information theoretic setting which takes security into account, and in the first chapters of the thesis we design some practical coding schemes for this channel model. LÄS MER
3. SiC CMOS and memory devices for high-temperature integrated circuits
Sammanfattning : High-temperature electronics find use in extreme environments, like data logging in downhole drilling for geothermal energy production, inside of high-temperature turbines, industrial gas sensors and space electronics. The simplest systems use a sensor and a transmitter, but more advance electronic systems would additionally require a microcontroller with memory. LÄS MER
4. Numerical Conformal mappings for regions Bounded by Smooth Curves
Sammanfattning : Inom många tillämpningar används konforma avbildningar för att transformera tvådimensionella områden till områden med enklare utseende. Ett exempel på ett sådant område är en kanal av varierande tjocklek begränsad av en kontinuerligt deriverbar kurva. LÄS MER
5. Optimal damping and slow sound in ducts
Sammanfattning : The thesis is dedicated to expanding knowledge on two duct acoustic issues including: 1) the optimal damping of low frequency sound and 2) the development and application of ‘slow sound’.To address the first issue, the ‘Cremer impedance’ proposed more than half a century ago has been revisited and further developed. LÄS MER