Search for dissertations about: "Cyclic conditions"

Showing result 1 - 5 of 203 swedish dissertations containing the words Cyclic conditions.

2. 1. On cyclic accumulation models for degradation of railway foundations

   Author : Hossein Tahershamsi; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Natural soft clay; Global Sensitivity Analysis; Sobol method; Experimental design; Rate-dependent models; Cyclic accumulation models; Cyclic degradation; Uncertainty analysis;

   Abstract : The degradation of railway foundations due to the repeated loading of traffic induces maintenance and safety obligations for the track operator. One major contributor to track degradation is the accelerated settlement rates in soft soils below the track that lead to alignment issues, especially at stiffness transitions. READ MORE

4. 2. Representation matters in cyclic proof theory

   Author : Dominik Wehr; Göteborgs universitet; []
   Keywords : HUMANIORA; HUMANITIES; Logic; Cyclic Proof Theory;

   Abstract : Cyclic proof systems allowderivations whose underlying structure is a finite graph, rather than a well-founded tree. The soundness of cyclic proofs is usually ensured by imposing additional conditions beyond well-formedness. READ MORE

5. 3. How precise is cyclic life? : Insights during a single molecule revolution of the bacterial cell cycle

   Author : Mats Walldén; Johan Elf; Peter Graumann; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; E.coli; cell cycle; replication initiation; transcription factor; gene-regulation; single molecule microscopy; microfluidics; Biology with specialization in Molecular Biotechnology; Biologi med inriktning mot molekylär bioteknik;

   Abstract : Bacterial cells reproduce by doubling in size and dividing. The molecular control systems which regulate the cell cycle must do so in a manner which maintains a similar cell size over many generations. A cell can under conditions of fast growth conclude cell cycles in shorter time than the time required to replicate its chromosome. READ MORE

6. 4. Determination of the Critical Moisture Level for Mould Growth on Building Materials

   Author : Pernilla Johansson; Avdelningen för Byggnadsfysik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Crawl space; Fungus; Mould resistance; Wood; Building materials; Mould; Critical moisture level; Attic; Relative humidity; Cyclic conditions; Laboratory method;

   Abstract : The susceptibility to mould growth varies between building materials. The factors that most affect mould growth, the relative humidity (RH) and temperature also vary in different parts of buildings. One way of preventing the growth of mould in buildings is therefore to choose building materials that can withstand the expected conditions. READ MORE

7. 5. Spatial and temporal population dynamics in the mountain tundra – mesopredator and prey

   Author : Rasmus Erlandsson; Anders Angerbjörn; Dennis Murray; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; population dynamics; cyclic; mountain tundra; arctic fox; Norwegian lemming; small rodents; mesopredator; predation; survival; reproduction; zoologisk ekologi; Animal Ecology;

   Abstract : It is well known that competition, predation and fluctuating food resources can have strong effect on individual fitness and population dynamics. The complexity of natural systems can make it complicate to disentangle those processes, but environments with relatively simple food webs, and strong cyclic population dynamics offer contrasting conditions resembling experimental treatments. READ MORE