Sökning: "topic model"

Visar resultat 16 - 20 av 437 avhandlingar innehållade orden topic model.

  1. 16. Modeling and identification of biological systems with emphasis on osmoregulation in yeast

    Författare :Peter Gennemark; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; osmotic stress; Saccharomyces cerevisiae; model identification; parameter estimation; model selection; ordinary differential equations;

    Sammanfattning : This thesis deals with two topics in the area of systems biology. Thefirst topic, model identification, concerns the problem ofautomatically identifying a mathematical model of a biochemical systemfrom experimental data. LÄS MER

  3. 17. Towards Human Supervisory Control in Advanced Manufacturing Systems

    Författare :Johan Stahre; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; human; CIM; case study; operator; FMS; supervisory control; method; manufacturing; model; cross-disciplinary;

    Sammanfattning : This thesis is on the topic of Human Supervisory Control in Advanced Manufacturing Systems (AMS). Presently, these systems suffer from inferior reliability and low productivity, unless "nursed" by skilled operators. Operators controlling the AMS are approaching a work situation similar to that of operators in continuous process manufacturing. LÄS MER

  4. 18. Modeling and Compensation of Polarization Effects in Fiber-Optic Communication Systems

    Författare :Cristian Bogdan Czegledi; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; nonlinear compensation; Channel model; model-based; polarization demultiplexing; polarization-mode dispersion; polarization drift; backpropagation; PMD; DBP;

    Sammanfattning : Optical communication systems that exploit the orthogonality between two polarizations of light convey information over optical fibers by modulating data over the two polarizations. In an idealized scenario, the two polarizations propagate through the fiber without interfering. LÄS MER

  5. 19. FRP shear strengthening of reinforced concrete beams

    Författare :Gabriel Sas; Giorgio Monti; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fiber reinforced polymers; shear; reinforced concrete; strengthening; model; comparison; literature review; Structural Engineering; Konstruktionsteknik;

    Sammanfattning : The shear failure mechanisms of flexural reinforced concrete (RC) members is highly complex; its precise details cannot be explained with simple analytical relationships, and are the topic of considerable scientific debate. The studies described and examined the three most used shear theories in the world – the fixed angle truss model (45°TM), the variable angle truss model (VAT), and modified compression field theory (MCFT). LÄS MER

  7. 20. Ämnet som nästan blev : En studie av metodiken i lärarutbildningen 1842- 1988

    Författare :Åsa Morberg; Jan-Erik Johansson; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Teaching practice; white papers; curricula for teacher traing; frame factor theory; techniques for teacher-pupil interaction; pedagogik; Education;

    Sammanfattning : The development of "teaching practice" (Sw: "metodik") in teacher training (compulsory school level, that is, primary and secondary junior high school or grades 1 to 9) from 1842 to 1988 is described. Based on a number of evaluations of teacher training the following questions are posed: Has an earlier central role for teaching practice in teacher training changed? Has teaching practice become marginalised in teaching training? The empirical sources for this thesis are white papers and curricula for teacher. LÄS MER