Sökning: "acoustic analysis"

Visar resultat 1 - 5 av 204 avhandlingar innehållade orden acoustic analysis.

  1. 1. Structure-Acoustic Analysis; Methods, implementations and applications

    Detta är en avhandling från Division of Structural Mechanics LTH, Lund University Box 118 221 00 Lund Sweden

    Författare :Per-Anders Wernberg; [2006]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; vibration and acoustic engineering; vacuum technology; hydraulics; numerical; Mechanical engineering; finite element ; Structure-Acoustic ; vakuumteknik; vibrationer; akustik; Maskinteknik; hydraulik;

    Sammanfattning : This thesis investigates structure-acoustic problems, which involve a flexible structure coupled to an enclosed acoustic fluid. In the literature, this type of problem is usually referred to as vibroacoustic problems or structure-acoustic problems with fluid interaction. The thesis consists of two parts. LÄS MER

  2. 2. Acoustic Forces in Cytometry and Biomedical Applications: Multidimensional Acoustophoresis

    Detta är en avhandling från Department of Biomedical Engineering, Lund university

    Författare :Carl Grenvall; [2014]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Acoustophoresis; Microfluidics; Ultrasound; Multinode; Cell Sorting; Particle Positioning; Cytometry; Lab-on-a-Chip; µTAS; Binary Separation; Acoustic Barriers; Acoustic Particle Manipulation; Acoustic Standing Waves; Blood Separation; Milk Analysis;

    Sammanfattning : Over the last decades the ongoing work in the fields of Lab-on-a-Chip and Micro-Total-Analysis-Systems has led to the discovery of new or improved ways to handle and analyse small volumes of biofluids and complex biosuspensions. The benefits of working on the microscale include: miniaturization of the analysis systems with less need for large sample volumes; temporal and spatial control of suspended particle/cell positions; low volume sheath flow lamination or mixing; novel separation techniques by using forces inherent to the microscale domain; precise regulation of sample temperatures and rapid analysis with less volumes needed to be processed. LÄS MER

  3. 3. Perception, Analysis and Synthesis of Speaker Age

    Detta är en avhandling från Linguistics and Phonetics

    Författare :Susanne Schötz; [2006]
    Nyckelord :HUMANIORA; HUMANITIES; phonology; perceptual cues; speaker age; automatic speaker recognition; acoustic analysis; acoustic correlates; data-driven; Phonetics; formant synthesis; Fonetik; fonologi; Technological sciences; Teknik;

    Sammanfattning : Speaker age is an important paralinguistic feature in speech which has to be considered in the study of phonetic variation. Knowledge about this feature may be used to improve speech technology applications, e.g. automatic speech recognition and speech synthesis. LÄS MER

  4. 4. Structural-acoustic vibrations in wooden assemblies: Experimental modal analysis and finite element modelling

    Detta är en avhandling från Växjö, Sweden : Linnaeus University Press

    Författare :Åsa Bolmsvik; Torbjörn Ekevik; Andreas Linderholt; Anders Brandt; Anders Ågren; [2013]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wooden framed structure; light weight buildings; multi-storey; flanking transmission; junction; vibration distribution; impact noise; damping; elastomers; finite element analysis; experimental modal analysis; FRF; trästomme; träkonstruktion; träbyggnad; flervåningshus; EMA; FEM; flanktransmission; koppling; knutpunkt; vibrationsspridning; stomljud; stegljud; dämpning; elastomerer; finit elementmetod; experimentell modalanalys; accelerationsmätning; frekvensresponsfunktion; modalanalys;

    Sammanfattning : This doctoral thesis concerns flanking transmission in light weight, wooden multi-storey buildings within the low frequency, primarily 20-120 Hz. The overall aim is to investigate how the finite element method can contribute in the design phase to evaluate different junctions regarding flanking transmission. LÄS MER

  5. 5. Acoustic trapping for biomedical analysis

    Detta är en avhandling från Fysiska institutionen

    Författare :Martin Wiklund; [2001]
    Nyckelord :;

    Sammanfattning : .... LÄS MER