Search for dissertations about: "criticality"

Showing result 11 - 15 of 89 swedish dissertations containing the word criticality.

  2. 11. Towards Effective Maintenance Planning

    Author : Maheshwaran Gopalakrishnan; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; bottleneck analysis; maintenance prioritization; criticality classification; Maintenance planning;

    Abstract : Manufacturing industry spend a great deal of their capital on equipment maintenance for their production systems. Hence, the cost of improper maintenance management is something that the industry would like to avoid. READ MORE

  4. 12. Assessing Mineral Resource Scarcity in a Circular Economy Context

    Author : Hampus André; Chalmers tekniska högskola; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; resource-efficiency; area of protection - natural resources; electric and electronic equipment; supply risk; scarce metals; criticality assessment; material flow analysis; life cycle assessment; circular economy; complex products;

    Abstract : Due to humanity’s dependence on metal resources there are growing concerns regarding impacts related to their potential scarcity, both for current and future generations. The vision of a more circular economy suggests that extending the functional use of metals through measures aiming for resource-efficiency (RE) such as increasing technical lifetime, repairing and recycling could reduce mineral resource scarcity. READ MORE

  5. 13. Numerical solutions of the one-speed neutron transport equation in two-medium slabs and spheres

    Author : Ninos Garis; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; time-decay constant; eigenvalue spectrum; Carlvik s method; two-medium systems; criticality factor; Neutron transport equation;

    Abstract : .... READ MORE

  6. 14. Data-Driven Decision Support for Maintenance Prioritisation - Connecting Maintenance to Productivity

    Author : Maheshwaran Gopalakrishnan; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; maintenance management; data-driven maintenance planning; bottleneck; productivity; machine criticality; maintenance prioritisation;

    Abstract : .... READ MORE

  7. 15. Phase transitions in magnetic metamaterials

    Author : Björn Erik Skovdal; Björgvin Hjörvarsson; Vassilios Kapaklis; Gunnar K. Pálsson; Peter Schiffer; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Magnetic metamaterials; artificial spin ice; mesospins; magnetic nanostructures; mesoscopic spin systems; multiscale materials; tri-criticality; emergence; edge modes;

    Abstract : Magnetic metamaterials consisting of arrays of densely packed, two-dimensional nanoscale magnetic islands have degrees of freedom on two separate length scales: inside the islands, and among them. These degrees of freedom can be tuned by e.g. size, shape, island separation and lattice geometry. READ MORE