Sökning: "measuring device"

Visar resultat 11 - 15 av 124 avhandlingar innehållade orden measuring device.

  1. 11. Rethinking the artificial urinary sphincter : from current knowledge to the development of a new smart device

    Författare :Christine Reus; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Background: Urinary incontinence (UI) plagues millions of women and men worldwide, leading to social stigma, low self-esteem, poor quality of life, and affects their loved ones. In women, frequent causes include childbirth, and in men prostate surgery for benign or malignant disease. LÄS MER

  3. 12. Measurement and Analysis of Partial Discharges at Semi-Square Voltages

    Författare :Elisabeth Lindell; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; space charge; Partial discharges PDs ; short rise time; partial discharge measuring techniques; square-like voltages; repetitive voltages; corona;

    Sammanfattning : Insulation is today being exposed to voltages having considerably higher frequency components than the conventional power frequency AC 50 Hz or 60 Hz, for example in motors supplied by adjustable speed drives based on pulse width modulated converters. This has in many cases caused unexpected behaviour of the insulation systems. LÄS MER

  4. 13. Carbon dioxide de-airing in cardiac surgery

    Författare :Peter Svenarud; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Carbon dioxide; De-airing; Air embolism; Cardiac surgery; Insufflation device; Microemboli; Transesophageal echocardiography;

    Sammanfattning : Background: The risks connected with the presence of air microemboli in open-heart surgery, have recently been emphasized by reports that their number is correlated with the degree of postoperative neuropsychological disorder. Insufflation of carbon dioxide (C02) into the chest wound is used in open-heart surgery to de-air the heart and great vessels. LÄS MER

  5. 14. Planar segmentation for Geometric Reverse Engineering using data from a laser profile scanner mounted on an industrial robot

    Författare :Mohamed Rahayem; Björn Arén; Johan Kjellander; Mathias Broxvall; Örebro universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Geometric Reverse Engineering; 3D measurement systems; laser scanner; planar segmentation; region-growing; Computer and systems science; Data- och systemvetenskap; Computer and Systems Science; Data- och systemvetenskap;

    Sammanfattning : Laser scanners in combination with devices for accurate orientation like Coordinate Measuring Machines (CMM) are often used in Geometric Reverse Engineering (GRE) to measure point data. The industrial robot as a device for orientation has relatively low accuracy but the advantage of being numerically controlled, fast, flexible, rather cheap and compatible with industrial environments. LÄS MER

  7. 15. Applanation Resonance Tonometry for Intraocular Pressure Measurement

    Författare :Per Hallberg; Olof A. Lindahl; Anders Eklund; Christina Lindén; Per Ask; Umeå universitet; []
    Nyckelord :Physics; Resonance; applanation; tonometry; glaucoma; Goldmann; biomechanical; Intraocular; ART; Fysik; fysik; Physics;

    Sammanfattning : Elevated intraocular pressure (IOP) is one of the major risk factors for glaucoma. Since glaucoma is a leading cause of blindness, reliable methods for measuring the IOP are important. This doctoral dissertation presents a new method, applanation resonance tonometry (ART), for measurement of IOP. LÄS MER