Sökning: "ghost"

Visar resultat 11 - 15 av 52 avhandlingar innehållade ordet ghost.

1. 11. On droplet interactions and suspension flow

   Författare :Zhouyang Ge; Luca Brandt; François Gallaire; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; droplets; suspension; multiphase flow; microfluidics; soft matter; rheology; depletion force; level set; ghost fluid.; droppar; suspension; flerfasflöde; mikrofluidik; mjukt material; reologi; utarmningskraft; nivåuppsättning; spökvätska.; Teknisk mekanik; Engineering Mechanics;

   Sammanfattning : Micron to millimetre sized droplets, precisely generated or sustained in controlled environment, have great potential in myriads of engineering applications functioning as the basic element to assemble metamaterials, deliver drugs, host surfactant, reduce friction and damp turbulence. The interaction of droplets from pairwise to collective levels is the most important factor in controlling these processes, yet little is known about the detailed mechanisms in various nonideal conditions. LÄS MER

3. 12. Nonlinear intrachannel distortion in high-speed optical transmission systems

   Författare :Pontus Johannisson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; all-optical regeneration; nonlinear optics; fiber optics; self-phase modulation; cross-phase modulation; ghost pulses; intrachannel four-wave mixing; timing jitter;

   Sammanfattning : The Kerr nonlinearity in optical fibres tends to generate signal distortion in dispersion-managed fibre-optic communication systems. Within a wavelength channel, the resulting intrachannel effects are timing jitter, i.e. LÄS MER

4. 13. Paranormal Sweden? : Paranormal beliefs and practices in contemporary Sweden

   Författare :Cristoffer Tidelius; Maria Klingenberg; Uppsala universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; Paranormal; Paranormal beliefs; Paranormal practices; Mediumship; Ghost hunts; Cryptozoology; Parapsychology; Ufology; Occulture; Epistemic authority; Epistemic capital; Boundary-work; Sociology of Religion; Religionssociologi;

   Sammanfattning : This dissertation aims to study the contemporary occurrence of paranormal beliefs, activities and experiences in Sweden as well as a paraculture of practices dedicated to these issues, with a particular focus on issues of knowledge and authority. The study is placed against the backdrop of academic and popular claims that paranormal beliefs, activities and experiences are not only common but are also on the rise. LÄS MER

5. 14. Commerce and Colonisation: Studies of Early Modern Merchant Capitalism in the Atlantic Economy

   Författare :Klas Rönnbäck; Göteborgs universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; globalisation; market integration; price convergence; colonial goods; international trade; imperialism; colonialism; Williams-thesis; slavery; sugar; balance of payments; Atlantic economy; the Baltic; ghost acreage;

   Sammanfattning : This dissertation consists of four chapters which study early modern merchant capitalism, with a special focus upon the developing Atlantic economy. The introductory chapter is followed by chapter 2, studying the issue of market integration and price convergence in inter-continental trade during the early modern period. LÄS MER

7. 15. Gear Surface Machining for Noise Suppression

   Författare :Naser Amini; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; gear grinding; gear shaving; gears; undulation; surface topography; noise; automotive gearboxes; ghost harmonics; gear honing;

   Sammanfattning : Gear noise in modern automobiles is unacceptable. It has different sources, such as design parameters and manufacturing errors. Manufacturing errors, for example, can be reduced using advanced grinding operations. However, sometimes grinding operations can introduce micro-geometry deviations that cause severe noise problems. LÄS MER