Sökning: "short-pitch"
Hittade 5 avhandlingar innehållade ordet short-pitch.
1. On the Optics and Surface Physics of Liquid Crystals
Sammanfattning : Good knowledge about optics and surface physics of liquid crystals is indispensable when utilising them for applications, such as liquid crystal displays (LCDs). However, they are also two central subjects in fundamental research on liquid crystals. LÄS MER
2. On the linear electro-optic effect in short-pitch cholesterics
Sammanfattning : .... LÄS MER
3. Rail Corrugation Growth on Curves
Sammanfattning : Short-pitch rail corrugation that may develop on the low (inner) rail on small radius curves causes increased noise and vibration levels on railway networks worldwide. In lack of a generally applicable treatment, track authorities are forced to run expensive rail grinding programs on a regular basis to manage these problems. LÄS MER
4. Rail Corrugation Growth on Curves
Sammanfattning : The development of periodic irregularities with distinct wavelengths (corrugation) on the low rail of small radius curves is studied through mathematical modelling, numerical simulations, field measurements and laboratory investigations. One year of monitoring of roughness on the low rail of a 120 m radius curve on the metro of Stockholm Public Transport (SL) showed severe growth of rail corrugation with wavelengths of about 5 cm and 8 cm. LÄS MER
5. Studies on Domain Dynamics in Nonlinear Optical Ferroelectric Oxide Crystals
Sammanfattning : Nonlinear optical frequency conversion is the key technology for modifying laser output radiation, in order to target specific applications. The most powerful technique to obtain tailored second-order nonlinear interactions is the quasi-phasematching (QPM) approach. LÄS MER