Search for dissertations about: "Availability"

Showing result 16 - 20 of 1809 swedish dissertations containing the word Availability.

  2. 16. Arsenic accumulation in plants for food and phytoremediation : Influence by external factors

    Author : Claes Bergqvist; Maria Greger; Sylvia Lindberg; Lena Ma; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Arsenic; accumulation; availability; distribution; habitat; phy-toremediation; rhizosphere; redox potential; speciation; Plant Physiology; växtfysiologi;

    Abstract : Arsenic (As) appears in the environment as various As species, which may vary in plant uptake and toxicity. Moreover, As exposure may vary between habitat due to availability and speciation, both of which are influenced by redox potential. To decrease As uptake, addition of silicate may be a tool. READ MORE

  4. 17. Striking a balance : Managing collaborative multitasking in computer-supported cooperation

    Author : Rikard Harr; Victor Kaptelinin; Mikael Wiberg; Oskar Juhlin; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Computer-supported Cooperative Work; articulation work; individual task execution; balance; interruptions; availability; awareness; interaction; information technology; multitasking; task switching; Informatics; computer and systems science; Informatik; data- och systemvetenskap;

    Abstract : This thesis is a collection of six papers and a cover paper reporting an exploration of how to strike a balance between individual task execution and work articulation in Computer-supported Cooperative Work (CSCW). The interest in this theme is motivated by an increased reliance of IT-supported cooperative work arrangements in modern organizations, the fragmented layout of work for multitasking individuals and reports on various forms of overload, increased level of stress and anxiety experienced by workers active in these organizations. READ MORE

  5. 18. On Dependability in Distributed Computerized Manufacturing Systems

    Author : Anders Adlemo; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; General Recursive System; availability; dependability; fault tolerance; reliability; manufacturing systems; computer systems;

    Abstract : The concepts of dependability, fault tolerance, reliability and availability concerning computer systems had already emerged by the 1950's. These concepts were initially used in the area of computer hardware, but were then applied to the area of software and later to applications. READ MORE

  6. 19. On the Analysis and Fault-Diagnosis Tools for Small-Scale Heat and Power Plants

    Author : Jaime Arriagada; Kraftverksteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Thermal engineering; applied thermodynamics; Termisk teknik; termodynamik; genetic algorithms; neural networks; fault diagnosis; maintenance; availability; reliability; energy analysis; combined heat and power; Methods and tools; small scale;

    Abstract : The deregulation of the electricity market drives utilities and independent power producers to operate heat and power plants as profit centers. In order to keep the economic margins on the credit side, the preferred measures have been to improve the electrical efficiency through changes in the hardware and boost the overall efficiency through e.g. READ MORE

  7. 20. Leaching of Polycyclic Aromatic Hydrocarbons Using a Column Method

    Author : Anja Enell; Avdelningen för kemiteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Kemiteknik och kemisk teknologi; Naturvetenskap; Chemical technology and engineering; Natural science; Miljöstudier; Environmental studies; coal tar; PAHs; desorption; soil; combustion residues; remediation; availability;

    Abstract : Polycyclic aromatic hydrocarbons (PAHs) are a group of organic pollutants of great environmental concern, due to their toxicity, carcinogenicity and long persistence in the environment. To determine the potential risk associated with PAHs released from contaminated soil or waste materials, knowledge is required on the leachable concentrations of PAHs and the amounts available for release. READ MORE