Avancerad sökning

Visar resultat 1 - 5 av 11 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. On Modeling and Control of Flexible Manipulators

    Författare :Stig Moberg; Svante Gunnarsson; Anders Robertsson; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; System identification; multivariable systems; differential-algebraic equations; robots; manipulators; flexible structures; robustness; position control; nonlinear systems; closed-loop identification; frequency-response methods; industrial robots; robotics; control; feedforward; flexible arms; Automatic control; Reglerteknik;

    Sammanfattning : Industrial robot manipulators are general-purpose machines used for industrial automation in order to increase productivity, flexibility, and quality. Other reasons for using industrial robots are cost saving, and elimination of heavy and health-hazardous work. LÄS MER

  3. 2. Deployment Control of Spinning Space Webs and Membranes

    Författare :Mattias Gärdsback; Anders Eriksson; Gunnar Tibert; Thomas W. Murphey; KTH; []
    Nyckelord :Flexible structures; space webs; membranes; solar sails; solar power systems; deployment control; optimal control; centrifugal force deployment; spin deployment; rotation-free; shell elements; TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : Future solar sail and solar power satellite missions require deployment of large and lightweight flexible structures in space. One option is to spin the assembly and use the centrifugal force for deployment, stiffening and stabilization. LÄS MER

  4. 3. Med avstegen som arbetsplats - En etnografisk studie av hälso- och sjukvårdskuratorns arbete

    Författare :Elisabet Sernbo; Göteborgs universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; health social work; ethnography; queer phenomenology; reorienting work; jurisdictional work; professional self-image; professional-patient relations; interprofessional relations;

    Sammanfattning : ABSTRACT Title: Out of line as workplace – An ethnographic study of health social work The aim of this thesis is to analyse what characterizes everyday health social work, focusing on the interplay between health social workers, patients and other health care professionals, and on the professional self-image of health social workers. The approach is ethnographic and the study is based on shadowing and focus group interviews. LÄS MER

  5. 4. Concepts for mechanized tree planting in southern Sweden

    Författare :Back Tomas Ersson; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : The underlying reason for mechanizing tree planting in southern Sweden is the biologically good planting results produced by today's tree planting machines. Nevertheless, the productivity of these tracked excavators with crane-mounted tree planting devices is too low for them to compete economically with manual planting. LÄS MER

  7. 5. Protein adaptability involved in self-assembled icosahedral capsids

    Författare :Josefina Nilsson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :BK virus; lumazine synthase; virus-like particle; electron cryomicroscopy; quasiequivalence; assembly;

    Sammanfattning : Interactions between viral coat proteins determine the size and shape of the virus capsid. Therefore, the plain closed shell of a spherical virus provides an excellent resource for studying and testing protein-protein interactions so as to reveal the properties that lead to symmetrical capsids or other shapes. LÄS MER