Sökning: "plastic optical fibre"

Hittade 5 avhandlingar innehållade orden plastic optical fibre.

  1. 1. Modulation Properties of Vertical Cavity Light Emitters

    Författare :Renaud Stevens; KTH; []
    Nyckelord :Semiconductor lasers; VCSEL; high-speed modulation; fibre optic networks; datacom; RCLED; plastic optical fibre;

    Sammanfattning : It is estimated that, between the year 2000 and 2003, thenumber of online Internet users will grow from 250 millions to500 millions. This growth results in rapidly increasing demandfor fibre-optic communication bandwidth, occurring at alllevels: from access and local area networks (LANs) tometro-area networks (MANs). LÄS MER

  3. 2. Optical Methods for Tympanic Membrane Characterisation : Towards Objective Otoscopy in Otitis Media

    Författare :Mikael Sundberg; Tomas Strömberg; Ton van Leeuwen; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Optical Methods; Spectroscopy; Surface Curvature; Monte Carlo; Tympanic Membrane; Otitis Media; Medical engineering; Medicinsk teknik;

    Sammanfattning : Otitis media, which is an upper respiratory tract infection that affect the middle ear, is the second most common disease in childhood, outnumbered in prevalence only by the common cold. Diagnosis of middle ear inflammation is often performed in the primary healthcare where the normal procedure involves anamnesis and physical examination of the tympanic membranes (TM) of the patient, usually be means of otoscopy. LÄS MER

  4. 3. Optical methods for tympanic membrane colour and shape assessment

    Författare :Mikael Sundberg; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : Otitis media is one of the most common diseases of childhood. Increasing antibiotic resistance has lead to awareness of the importance of the diagnostic accuracy in otitis media. The recommended treatment of acute otitis media (AOM) involves antibiotics whereas in otitis media with effusion (OME) it does not. LÄS MER

  5. 4. Development of techniques for measurements of shock wave response and moisture content in granite

    Författare :Dan Tilert; Lars Mattsson; Mikael Sjödahl; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industrial engineering and economy; Industriell teknik och ekonomi;

    Sammanfattning : For measuring small, fast deformations on a micrometre scale optical methods are common. Various forms of interferometry are available, and holography is another possibility. However, if there are complications such as limited space and hazardous environments special demands arise. LÄS MER

  7. 5. CFRP Strengthening of Cut-Out Openings in Concrete Walls – Analysis and Laboratory Tests

    Författare :Cosmin Popescu; Björn Täljsten; Gabriel Sas; Thomas Blanksvärd; Stijn Matthys; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Structural Engineering; Konstruktionsteknik;

    Sammanfattning : Redesigning buildings to improve their space efficiency and allow changes in use is often essential during their service lives to comply with shifts in living standards and functional demands.This may require the introduction of new openings in elements such as beams, walls, and slabs,which inevitably reduces their structural performance and hence requires repair or strengthening. LÄS MER