Search for dissertations about: "L Good"

Showing result 21 - 25 of 258 swedish dissertations containing the words L Good.

  2. 21. On Thermal Conductivity and Strength in Compacted Graphite Irons : Influence of Temperature and Microstructure

    Author : Martin Selin; Ingvar L. Svensson; Attila Diószegi; Steve Dawson; Jönköping University; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Compacted Graphite Iron; Thermal Conductivity; Mechanical Properties; Hardness; Microstructure; Plastic Deformation; Hollomon Equation; Elevated Temperature; Materials science; Teknisk materialvetenskap;

    Abstract : Thermal conductivity, hardness and strength are all highly important material properties, affecting the performance and life expectancy of components operating at elevated temperatures. The main purpose of this work has been to increase the knowledge and understanding concerning how mechanical and physical properties are affected by temperature and microstructure in compacted graphite irons. READ MORE

  4. 22. Computational methods for assessing chemical risk : focusing on toxicokinetic modelling in zebrafish (danio rerio)

    Author : Ioana C. Chelcea; Patrik L. Andersson; Timo Hamers; Jessica Legradi; Stefan Örn; Carolina Vogs; Nynke Kramer; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; PBTK; Toxicokinetics; Endocrine disruptors; bisphenols; zebrafish; embryo; Toxicology; toxikologi;

    Abstract : New chemicals are constantly produced and large data gaps exist on hazards of currently used industrial chemicals, stressing the need for rapid, ethically sound and cost-efficient hazard assessment methods. Traditional methods for effect assessment based on animal testing, do not meet these requirements and thus the toxicology field has been moving towards the development of new approach methodologies which include in vitro approaches but also computational methods. READ MORE

  5. 23. Use and Development of Diffusive Samplers to Analyse the Fate of Polycyclic Aromatic Compounds, Polychlorinated Biphenyls and Pharmaceuticals in Wastewater Treatment Processes

    Author : Lijana Augulyte; Patrik L. Andersson; Anna Ledin; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; bioavailable; biologically activated carbon; PRCs; sampling rate; SPMD; sorption; wastewater treatment; diffusive passive samplers; human pharmaceuticals; municipal sewage treatment plant; organic micropollutants; polycyclic aromatic compounds; PAHs; PCBs; POCIS; Environmental chemistry; Miljökemi;

    Abstract : The efficiency of wastewater treatment systems is commonly measured by the reductions of parameters such as biological oxygen demand (BOD), chemical oxygen demand (COD) and total suspended solids (TSS) and/or reductions in levels of selected macro compounds (e.g. long-chained hydrocarbons and inorganic compounds). READ MORE

  6. 24. A sub-5 fs 100 TW optical parametric synthesizer

    Author : Peter Fischer; Laszlo Veisz; Ove Axner; Cord L. Arnold; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Optical parametric amplification OPA ; optical parametric synthesizer OPS optimization; energy stability; carrier envelop phase stability; temporal intensity contrast; saturation; fewcycle; tera watt; fysik; Physics;

    Abstract : State-of-the-art ultrashort light sources in the visible and near-infrared spectral regions provide direct access to the femtosecond realm, thereby enabling understanding and control of electronic processes within matter. On the other hand, ultra-intense light pulses lead to the emergence of relativistic electron motion and many related phenomena, such as electron & ion acceleration and high-order harmonic generation in plasmas. READ MORE

  7. 25. Urbanization as Socionatures' Reproduction: from Territories of Extraction

    Author : Berta Flaquer; Kristina L. Nilsson; Jennie Sjöholm; Andrea Luciani; Peter Sköld; Luleå tekniska universitet; []
    Keywords : HUMANIORA; HUMANITIES; Arkitektur; Architecture;

    Abstract : Through an engagement with the strand of critical urban theory, this dissertation brings the reworkings of Henri Lefebvre’s notion of ‘planetary urbanisation’ into a new synthesis with further inputs from urban political ecology and feminism—towards developing an ecofeminist lens to urbanization. Guided by the hypothesis “urbanization has been historically sustained through the patriarchal domination of women and nature’s reproduction,” the thesis seeks to critically explore how urbanization processes have historically and multiscalarly recurrently transformed the spatial configurations of reproduction from territories of extraction. READ MORE