<p dir="ltr">The Intermontane terranes represent one of the largest composite accreted terranes that built the northern Cordillera. To better understand the interactions between the continental margin of Laurentia and the Intermontane terranes, this study analyzes twelve detrital zircon samples (n=3232) from a Neoproterozoic (?) to Cretaceous metasedimentary stratigraphic section exposed in central Alaska. Distinct detrital zircon populations have been identified and are interpreted to represent four stages in the geologic development of this part of western North America. Stage 1 extends from the Neoproterozoic (?) to the Early Paleozoic, and is characterized by Proterozoic and Archean detrital zircon populations that correlate with Laurentian sources of sediment. We interpret Stage 1 to represent deposition along the northwestern continental margin of Laurentia. Stage 2 extends from the Silurian (?) to the Devonian and is characterized by a dominant Devonian and Silurian detrital zircon population. We interpret Stage 2 to have been deposited in a backarc basin coeval with active volcanism as the Yukon-Tanana terrane was rifted away from the Laurentian continental margin as the Slide Mountain Ocean opened. Stage 3 extends from the Mississippian to the Jurassic and records a shift back to sediment sources with abundant Proterozoic and Archean zircon. We interpret this stage to represent deposition of Laurentian detritus along the eastern margin of the Slide Mountain Ocean basin. Stage 4 is represented by the Lower Cretaceous strata of the Manley basin that contain one major Late Triassic to Early Jurassic detrital zircon population. We interpret this population to be sourced from the syn-collisional and post-collisional Late Triassic to Early Jurassic plutons and related sedimentary basins of the Intermontane terranes that were exhumed and eroded during the closure of the Slide Mountain Ocean and the subsequent collision with the Laurentian continental margin. We interpret the Manley basin as a syn- to post-collisional extensional basin associated with regional detachment faults that formed because of crustal thickening in the collisional zone. From a regional perspective, an extensive clastic wedge prograded northward away from the zone of crustal thickening and can be identified in a series of Mesozoic sedimentary basins that are discontinuously exposed over 1500 km in southern Alaska. Results of our study better delineate the tectonic processes that set the framework for the construction of the Late Mesozoic and Cenozoic Cordilleran orogen.</p>

The theme of the dissertation titled the Centre of Sport and Leisure Time in Brno is a design of a relaxing and sport site „Centrum Lužánky“. The subject of this project is architectonic-city-planning study, which deals with elaborating a concept of a sport centre behind Lužánky in Brno-Ponava. This dissertation contains details of the facility and the area of the current swimming pool Lužánky. The current state of the facility built in 1979 doesn’t meet requirements of visitors and sportsmen anymore. The main aim of this project is the reconstruction of the current fifty-meter swimming pool, a design of a new swimming pool placed under the ground floor of the current building, which will provide space for organizing international competitions, trainings of professional sportsmen, etc. At the same time the busyness of the current swimming pools would be lowered by building a new indoor and outdoor waterpark, especially for the group of recreational visitors. The attractiveness of the facility will be increased by the newly designed park relaxing area and proposed multipurpose area, used as a sports field in the summer and as an ice ring in the winter. Additional value of the facility is comprised by an indoor and outdoor café and large relaxing area on the roof of the waterpark. The whole area increases the community facility availability by a proposed wide range of services for health, relax and sport. The advantage of the whole concept is the mutual connection of all facilities. The entrance to the area is shortened by a designed pedestrian bridge, accessible from the south and north busy areas. The whole project is enhanced by increased number of new parking places, located particularly along the access road, the street Sportovní, going through a green zone. The road and parking places are proposed in the design of residential streets, respecting walking pedestrians. The area has a very rich sport history, which is dated back to 1922. The new concept increases th

Im Rahmen der vorliegenden Arbeit wurde ein Spritzgießwerkzeug mit einem neuartigen Mehrschichtverbundheizsystem zur dynamischen Temperierung entwickelt und umgesetzt. Dabei wurde das ausgewählte Heiz‐ und Kühlsystem unter theoretischen und praktischen Gesichtspunkten betrachtet und für den variothermen Fertigungsprozess verifiziert. Aus den ersten durchgeführten praktischen Versuchen zeigte sich, dass dieses Heizsystem zur dynamischen Temperierung von Formwerkzeugen geeignet ist. Anschließend wurden mit dem realisierten Spritzgießwerkzeug Versuchskörper mit spezieller Oberflächenstrukturierung und variierenden Werkzeugwandtemperaturen angefertigt und untersucht. Ziel war es, über diese Strukturierung eine Beeinflussung der Glasfaserverteilung im Formteilrandbereich zu erreichen und die tribologischen Eigenschaften bei Kunststoff‐Kunststoff‐Gleitpaarungen hinsichtlich Reibung und Verschleiß zu verbessern. Mit einer kleinen Auswahl an Strukturen und entsprechenden thermoplastischen Polymermaterialien wurden praktische Versuche zur tribologischen Prüfung durchgeführt. / In the present work an injection mould was developed and implemented with a novel multilayer composite heating system for dynamic temperature control. Here the selected heating and cooling system was considered from a theoretical and practical point of view and verified for the variothermal manufacturing process. The first practical tests showed that this heating system is suitable for the dynamic temperature control of tools. Subsequently, with this injection mould, test specimens with a special surface structure and varying mould wall temperatures were produced and examined. The aim was to achieve through this structuring an impact on the distribution of glass fibres in the edge region of mouldings and improve the tribological properties of plastic‐plastic‐pairings in terms of friction and wear. With a small selection of structures and corresponding thermoplastic polymeric materials practical experiments for tribological testing were performed.