Sökning: "Mechanical stimuli"

Visar resultat 6 - 10 av 86 avhandlingar innehållade orden Mechanical stimuli.

1. 6. On the regulation of Postprandial Gastrointestinal Blood Flow in Teleost Fish

   Författare :Henrik Seth; Göteborgs universitet; []
   Nyckelord :Rainbow trout Oncorhynchus mykiss ; Shorthorn sculpin Myoxocephalus scorpius ; Diet composition; Oxygen consumption; Mechanical stimuli; Chemical stimuli;

   Sammanfattning : Henrik Seth (2010) On the Regulation of Postprandial Gastrointestinal Blood Flow in Teleost Fish Department of Zoology/Zoophysiology, University of Gothenburg, Box 463, 405 30 Göteborg. The regulation of the cardiovascular changes, in particular the increase in gastrointestinal blood flow that follows after feeding has received little attention in teleost fish. LÄS MER

3. 7. Modeling and simulation of electro-viscoelastic polymers

   Författare :Anna Ask; Hållfasthetslära; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electroactive polymers; dielectric elastomer actuators; electromechanical coupling; finite elements; viscoelasticity; finite deformations;

   Sammanfattning : The electroactive polymer materials considered in this work react to electric stimuli by producing deformations. In some cases, the electrically induced deformations are moderate, while in other cases they can be very large and the specimen is stretched to more than twice its original length. LÄS MER

4. 8. Affect as a Component of Perceived Sound and Vibration Quality in Aircraft

   Författare :Daniel Västfjäll; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; comfort; sound quality; evaluations; affective reactions; preference; interior aircraft sounds; propeller aircraft;

   Sammanfattning : The concept of product sound quality is becoming an integral component of product development and design. The research presented in this thesis test the notion that affective reactions (i.e. positive-negative feelings) are a major determinant of perceived sound quality. LÄS MER

5. 9. Nonlinear Structural Identification Using a Multi-Harmonic  Frequency Response Functions

   Författare :Vahid Yaghoubi Nasrabadi; Thomas Abrahamsson; Andreas Linderholt; Martin Magnevall; Chalmers; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Nonlinear structure; inverse problem; grey box system identification; finite element model updating; identifiability; Fisher information matrix; multi-harmonic frequency response function; Maskinteknik; Mechanical Engineering;

   Sammanfattning : In industrial structural dynamics problems, linear FE-models commonly serve to represent the global structural behavior. However, when test data are available they often show evidence of nonlinear dynamic characteristics. In that case, an initial linear model may be judged insufficient in representing the dynamics of the structure. LÄS MER

7. 10. Drum sound from floor coverings - objective and subjective assessment

   Författare :Ann-Charlotte Johansson; Teknisk akustik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; vakuumteknik; vibrationer; akustik; hydraulik; Maskinteknik; vacuum technology; vibration and acoustic engineering; hydraulics; acoustic standard; Mechanical engineering; tapping machine; veneer flooring; parquet flooring; binaural recording; foot impact; loudness; sound quality; listening test; paired comparisons; walking sound; drum sound; building acoustics; psychoacoustics; laminate flooring;

   Sammanfattning : Drum sound is the sound produced when an object, such as a foot, hits the flooring in the room in which the receiving ear is located. Drum sound has attracted interest in recent years, particularly due to an increased use of thin floating floor constructions, such as veneer or laminate flooring, which can produce loud and sharp walking sound. LÄS MER