Search for dissertations about: "step response"

Showing result 1 - 5 of 455 swedish dissertations containing the words step response.

  2. 1. Thermal modelling and evaluation of borehole heat transfer

    Author : Saqib Javed; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ground source heat pump; fluid temperature; borehole; short-term; thermal response test; groundwater-filled; optimization; load aggregation; simulation; recovery; step-response; long-term; ground heat exchanger; times; design; ground-coupled;

    Abstract : The use of ground source heat pump systems to provide heating and cooling inbuildings has increased greatly in the last decade or so. These systems have a highpotential for energy efficiency, which has environmental and economicadvantages. READ MORE

  4. 2. Domestication Effects on the Stress Response in Chickens : Genetics, Physiology, and Behaviour

    Author : Amir Fallahshahroudi; Per Jensen; Frank Albert; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Animal domestication; stress response; gene expression; QTL; eQTL;

    Abstract : Animal domestication, the process where animals become adapted to living in proximity to humans, is associated with the alteration of multiple traits, including decreased fearfulness and stress response. With an estimated population of 50 billion, the domesticated chicken is the most populous avian species in the world. READ MORE

  5. 3. Numerical methods for load and response prediction for use in acoustic fatigue

    Author : Johan Nilsson; Byggnadsmekanik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Acoustic fatigue; Sonic fatigue; Computational Fluid Dynamics; Large Eddy Simulation; Finite Element Method; Random response analysis; Separated flow; High Re; Backward-facing step; Fence flow; Aircraft; Proper Orthogonal Decomposition; Acoustic fatigue; Sonic fatigue; Computational Fluid Dynamics; Large Eddy Simulation; Finite Element Method; Random response analysis; Separated flow; High Re; Backward-facing step; Fence flow; Aircraft; Proper Orthogonal Decomposition;

    Abstract : Acoustic fatigue can occur in structural elements of an aircraft exposed to very high sound pressures. To deal with acoustic fatigue, mainly empirical methods have been applied and often late in the design phase. Current design guidelines have three main limitations. First, they do not say anything about the load intensities. READ MORE

  6. 4. Colorectal cancer and radiation response : The role of EGFR, AKT and cancer stem cell markers

    Author : Sara Häggblad Sahlberg; Bo Stenerlöw; Bengt Glimelius; Marika Nestor; Torgny Stigbrand; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; colorectal cancer; radiation; AKT; EGFR; cancer stem cells; CD133; CD44; Biomedical Radiation Science; Biomedicinsk strålningsvetenskap; Biologi med inriktning mot molekylär cellbiologi; Biology with specialization in Molecular Cell Biology;

    Abstract : The primary treatment for colorectal cancer is surgery. Radiotherapy and chemotherapy, sometimes combined, are also frequently used to diminish recurrence risk. In response to radiation exposure, several cellular signaling cascades are activated to repair DNA breaks, prevent apoptosis and to keep the cells proliferating. READ MORE

  7. 5. Information modelling for the manufacturing system life cycle

    Author : Astrid von Euler-Chelpin; Torsten Kjellberg; Serge Tichkiewitch; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Information modelling; manufacturing resource model; manufacturing system life cycle; STEP; PLCS; Informatics; Informatik;

    Abstract : This thesis deals with information modelling within the scope of the manufacturing system life cycle, i.e. the development phase and the operation phase. READ MORE