Sökning: "HSI"

Visar resultat 1 - 5 av 14 avhandlingar innehållade ordet HSI.

  1. 1. A Method for Designing Resilient Digital Business Ecosystems

    Författare :Chen Hsi Tsai; Janis Stirna; Jelena Zdravkovic; Irina Rychkov; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; digital business ecosystem; method engineering; enterprise modelling; resilience; data- och systemvetenskap; Computer and Systems Sciences;

    Sammanfattning : Organisations and companies are transforming their ways of conducting business by combining digitalisation and digital collaboration in digital business ecosystems (DBE) in order to be able to remain competitive in global markets. However, for companies and organisations to be able to take full advantage of such collaborative business constellations, several challenges, including the capture and coordination of information concerning individual DBE actors and various perspectives of a DBE and the design of resilience for a DBE, need to be addressed. LÄS MER

  3. 2. Paternal care and brood reduction in a pipefish

    Författare :Gry Sagebakken; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Parental care; brood reduction; embryo survival; parental condition; filial cannibalism; post-mating sexual selection; HSI; sexual conflicts; Syngnathus typhle; male brooding;

    Sammanfattning : From an evolutionary and adaptive perspective, the occurrence and extent of parental care in animals (investment in offspring beyond the genetic contribution) is expected to depend on an optimal (fitness-maximizing) balance of its costs and benefits. Males of the sex-role reversed broad-nosed pipefish, Syngnathus typhle, which care for eggs and embryos and may perform brood reduction, are particularly interesting in this respect. LÄS MER

  4. 3. Footbridge Dynamics : Human-Structure Interaction

    Författare :Emma Zäll; Raid Karoumi; Mahir Ülker-Kaustell; Andreas Andersson; Peter Van den Broeck; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Dynamics; vibration; footbridge; pedestrian bridge; human-structure interaction; runner; running loads; simplified models; Dynamik; vibration; gångbro; människa-bro-interaktion; löpare; löparlaster; förenklade modeller; Civil and Architectural Engineering; Byggvetenskap;

    Sammanfattning : For aesthetic reasons and due to an increased demand for cost-effective and environmentally friendly civil engineering structures, there is a trend in designing light and slender structures. Consequently, many modern footbridges are susceptible to excessive vibrations caused by human-induced loads. LÄS MER

  5. 4. Human-structure interaction effect on the dynamic response of footbridges : An analytical and experimental study

    Författare :Daniel Colmenares; Raid Karoumi; Andreas Andersson; Federica Tubino; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; footbridges; dynamics; human induced loads; human structure interaction.; Bro- och stålbyggnad; Structural Engineering and Bridges;

    Sammanfattning : Lightweight, slender and lightly damped footbridges are often susceptible to HumanInduced Loads (HILs) when pedestrian step frequencies coincide with the naturalfrequencies of the structure. For vertical vibrations, this can compromise the serviceabilitylimit state of the system. LÄS MER

  7. 5. Interaction mechanisms for a laser-induced metallic boiling front

    Författare :Ramiz Saeed Matti Samarjy; Alexander F.H. Kaplan; Torbjörn Ilar; Michael Schmidt; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Laser remote fusion cutting; Boiling front; High speed imaging; Additive manufacturing; Ejection; Absorption; Wavy surface; Deposition; Produktionsutveckling; Manufacturing Systems Engineering;

    Sammanfattning : This thesis is about fundamental interaction mechanisms of laser remote fusion cutting, RFC, which is based on the formation of a quasi-stationary laser-induced boiling front that causes drop ejection, preferably downwards. Laser cutting of metals, invented in 1967, has developed from a niche to a well established high quality cutting technique in the manufacturing industry. LÄS MER