Sökning: "Lu Cao"

Visar resultat 1 - 5 av 10 avhandlingar innehållade orden Lu Cao.

  1. 1. Designing Human-Centered Hybrid Decision Support Systems

    Författare :Lu Cao; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Decision support system; Decision making; Decision-making; Hybrid system; Human–machine hybrid; Human-centered; Human-centered AI; Design science research; Action design research; Design principle; Multi-grounded theory;

    Sammanfattning : Innovative decision support systems (DSSs) are revolutionizing key processes in organizations. These systems are used in managerial decision-making to solve increasingly complicated decision tasks, for example, using artificial intelligence. LÄS MER

  3. 2. Some topics in web performance analysis

    Författare :Jianhua Cao; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : This thesis consists of four papers on web performance analysis. In the first paper we investigate the performance of overload control through queue length for two different web server architectures. The simulation result suggests that the benefit of request prioritization is noticeable only when the capacities of the sub-systems match each other. LÄS MER

  4. 3. Marginal Productivity Indices and Linear Programming Relaxations for Dynamic Resource Allocation in Queueing Systems

    Författare :Jianhua Cao; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Markov decision process; Indexability; Linear programming; Queueing theory; Optimization;

    Sammanfattning : Many problems concerning resource management in modern communication systems can be simplified to queueing models under Markovian assumptions. The computation of the optimal policy is however often hindered by the curse of dimensionality especially for models that support multiple traffic or job classes. LÄS MER

  5. 4. Computational Studies of Nitrogenase

    Författare :Lili Cao; Beräkningskemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; nitrogenase; QM MM; quantum refinement; FeMo cluster; E4 state; N2 binding; V-nitrogenase; P-cluster; S2B dissociation; broken-symmetry state; homocitrate; DFT; protonation state; disorder; ComQumX-2QM;

    Sammanfattning : AbstractNitrogenase is the only enzyme that can convert the inert nitrogen molecule to ammonia, so that it can be used for biomass production and in biosynthetic pathways. It contains a complicated acitve site, composed of eight metal ions, nine sulfur ions and one carbide ion (the FeMo cluster). LÄS MER

  7. 5. Receptor Upregulation and MAPK Activity in Arteries and Bronchi Following Secondhand Smoke Exposure

    Författare :Lei Cao; Lund Medicin; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; coronary arteries; cerebral arteries; 5-hydroxytryptamine receptor; endothelin receptor; secondhand smoke exposure; bronchi;

    Sammanfattning : Cigarette smoking is a major risk factor for cardiovascular and respiratory diseases. Contractile receptor changes have been observed in several vascular diseases. The intracellular mitogen activated protein kinase (MAPK) signaling pathways are suggested to be associated with receptor upregulation. LÄS MER