This thesis deals with complex analysis of fine-grained magnesium alloy AZ91 prepared by ECAP process. Mechanical properties of investigated alloy in different states at various external conditions are compared. The structure of this material is inherently unstable therefore changes on microstructural and sub-microstructural level occur during thermal exposure and/or mechanical loading. These changes are analysed and quantified for investigated alloy in selected states in this thesis.

In my dissertation I focus on light and spatial situations rooted in a dialogue between an empty space and artificial light. These environments are so charged in terms of perception that their experience affects the processes in the viewer's consciousness. First, there are usually the feelings of increased instability and disorientation. These factors were first explored in depth by the Californian artists James Turrell and Robert Irwin in the mid-1960s, in response to psychological and neurological scientific experiments in the field of sensory deprivation. Turrell's and Irwin's progressive approach found a host of followers. In Europe, it was developed, in particular, by the contemporary artists Olafur Eliasson and Ann Veronica Janssens, in the Czech milieu by Pavel Korbička. Korbička's interest in the potential of space and its definition by artificial light constitutes a key material in my dissertation for the explanation of the links between light and spatial works and the processes regarding the viewer's perception. Inside light and spatial works, the limits of the viewer's body dissolve; at the same time, the natural dependence of human orientation on allocentric representation (i.e. on the relationship between the subject and the surrounding landmarks) is stimulated, to the extent that the...

Architecture Jail Escape It is a specific device for futuroptimist people based on the philosophy of posthumanism and transhumanism, a version of their own faith in endless life on the net. It is a belief in the possibility of technological transformation of humanity that will allow us to overcome our physical and biological limits. Clause 2.0 is architecture for pioneers - the protagonist of this transformation - enabling the longest and most complete stay in virtual reality. This avant-garde is anxious 2.0. Escapist personalities of digital age soldiers are looking for a haven and their own version of the world in the cyberspace. They create a vision of paradise and colonize (cyber) space without the political consequences of the finiteness of the physical world and the exhaustion of natural resources. They live on the frontier of the being, and they want to unburden themselves and merge with the world they understand more. They fight with their own brain and body that cannot break away from the world. The endlessness of the virtual space has the limits of body and senses. Long-term stay in a cyberspace is a loss of sense of time and space. This monastic life in clause 2.0 is able to keep them in shape, by observing the ritual, the physical performance of walking that they must undergo so that they can exist every day in their version of the digital monastery. These versions are infinite, and they can be ritually traced among them. Clause geometry isolates them from one another. The clause is a monastic concept that allows the people to live hermetically, as well as the physical world. The gateway to the virtual space is a "zero architecture" - a room, a cell, a cube on a 4x4 meter plan, rid of any visual architectural site. It provides only a flat floor as the reflection point for an endless virtual world and four walls and a ceiling with a corresponding thickness for a sufficient separation from the outside world. The world of infinite freedom opens behind this "zero architecture". It seems that not through "architectural innovation and political subversion" a modern architect's dream of architecture will be realized as machines for the liberation of man but through the abandonment of physical architecture as such. The prospect of "zero architecture" opens up a space where the new architecture will no longer be "luxuries and good homes, not the architecture of separation and imprisonment, but it will ultimately be the architecture of freedom.