Sökning: "Structural dynamics"

Visar resultat 1 - 5 av 524 avhandlingar innehållade orden Structural dynamics.

  1. 1. Footbridge Dynamics : Human-Structure Interaction

    Författare :Emma Zäll; Raid Karoumi; Mahir Ülker-Kaustell; Andreas Andersson; Peter Van den Broeck; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; 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; Byggvetenskap; Civil and Architectural Engineering;

    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

  2. 2. Exploring the Molecular Dynamics of Proteins and Viruses

    Författare :Daniel Larsson; David van der Spoel; Modesto Orozco; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; molecular dynamics; virus dynamics; capsid dissolution; satellite tobacco necrosis virus; satellite tobacco mosaic virus; virus genome structure; gas phase protein structure; water layer; micelle embedded protein; membrane protein; Chemistry with specialization in Biophysics; Kemi med inriktning mot biofysik;

    Sammanfattning : Knowledge about structure and dynamics of the important biological macromolecules — proteins, nucleic acids, lipids and sugars — helps to understand their function. Atomic-resolution structures of macromolecules are routinely captured with X-ray crystallography and other techniques. LÄS MER

  3. 3. Modelling the Structural Dynamics of Business Networks : Two Agent-based Models of Supply Networks

    Författare :Sara Shahin Moghadam; Frans Prenkert; Franziska Klügl; Magnus Hansson; Davide Secchi; Örebro universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Business networks; dynamics; Agent-based modelling; structural change; responses; interactions; complex adaptive systems;

    Sammanfattning : This thesis aims at describing and analysing the structural changes of business networks that emerge as a result of change triggers. Despite previous studies, our understanding of the evolution of the network structure and its influencing factors is still limited. LÄS MER

  4. 4. Tales from the Sweet Side of Life : Structure and dynamics of carbohydrate-based systems

    Författare :Alessandro Ruda; Göran Widmalm; Jesús Jiménez Barbero; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES; carbohydrates; nuclear magnetic resonance; molecular dynamics; glycans; conformational analysis; structure elucidation; protein-glycan interactions; Organic Chemistry; organisk kemi;

    Sammanfattning : The field of glycomics has experienced significant developments in the last few decades, revealing a profound and elaborate language behind the intrinsic complexity of the glycans structures. This ‘sugar code’ is at the basis of intercellular interaction and recognition. For this language to be understood, its chemical basis must be unveiled. LÄS MER

  5. 5. Adaptive Finite Element Procedures in Structural Dynamics

    Författare :Xiangdong Li; Chalmers University of Technology; []
    Nyckelord :finite element; h-adaptivity; Newmark method; structural dynamics; space-time; a posteriori; superconvergent patch recovery; postprocessing; automatic time-stepping; semidiscretization; error estimation; discontinuous Galerkin;

    Sammanfattning : This thesis deals with a posteriori error estimation and adaptivity in finite element procedures for the analysis of structural dynamic problems. First, error estimation and adaptivity for the Newmark time integration method are studied. LÄS MER