Sökning: "Volume measurements"

Visar resultat 21 - 25 av 614 avhandlingar innehållade orden Volume measurements.

  1. 21. Evaluation of Errors and Limitations in Ultrasound Imaging Systems

    Författare :Mattias Mårtensson; Lars-Åke Brodin; Peter Rask; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Medical engineering; Medicinsk teknik;

    Sammanfattning : There are binding regulations requiring safety and efficacy aspects of medical devices. The requirements ask for documentation that the devices are safe and effective for their intended use, i.e. if a device has a measuring function it must be correct. LÄS MER

  3. 22. Spirodynamics. New methods for continuous monitoring of respiratory mechanics in ventilator-treated patients

    Författare :Sigurbergur Kárason; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Monitoring; Respiratory mechanics; Mechanical ventilation; Compliance; Alveolar pressure; Dynostatic algorithm; ALI; ARDS; Model; Human.;

    Sammanfattning : Introduction: Ventilator treatment is often life-saving but has the inherent risk of causing damage to lung tissues. Overdistension and repetitive collapsing/opening of alveoli should be avoided. Monitoring of respiratory mechanics has a central role in accomplishing this. LÄS MER

  4. 23. Fat-Referenced MRI : Quantitative MRI for Tissue Characterization and Volume Measurement

    Författare :Thobias Romu; Magnus Borga; Olof Dahlqvist Leinhard; Samir Sharma; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MRI; water-fat separation; quantitative MRI;

    Sammanfattning : The amount and distribution of adipose and lean tissues has been shown to be predictive of mortality and morbidity in metabolic disease. Traditionally these risks are assessed by anthropometric measurements based on weight, length, girths or the body mass index (BMI). LÄS MER

  5. 24. Ground Monitoring using Resistivity Measurements in Glaciated Terrains

    Författare :Jaana Aaltonen; KTH; []
    Nyckelord :Resistivity; DIrect Current; Monitoring; Groundwater; Contaminant; Tracer Test; Geophysics;

    Sammanfattning : The most common method of monitoring and mapping groundwatercontaminants is to extract and analyse a number of groundwatersamples from wells in the investigation area. However, thereare a number of limitations with this type of point-wiseinvestigation, as it is hard to acquire an adequate picture ofa heterogeneous and anisotropic subsurface using a fewpoints. LÄS MER

  7. 25. Rapid measurements of the moisture content in biofuel

    Författare :Jenny Nyström; Erik Dahlquist; Stefan Backa; Eva Thorin; Bo Franzon; Clarke Topp; Mälardalens högskola; []
    Nyckelord :radiofrequency measurement; moisture content measurement; fuel characterization; biofuel; time domain measurement; Bulk measurement; Multivariate data analysis;

    Sammanfattning : An increasing number of power plants in Scandinavia are beginning to use biofuel instead of coal or oil. The material in the new fuel is a mixture of woodchips, mostly Pine, Spruce and Salix, bark, GROT (tops and branches from felling waste) and sawdust from sawmills. It is heterogeneous, having a moisture content varying from 15% up to 65%. LÄS MER