Sökning: "testing equipment"
Visar resultat 1 - 5 av 122 avhandlingar innehållade orden testing equipment.
1. Performance testing of ultrasound Doppler equipment
Sammanfattning : Blood and tissue velocities are measured and analysed in cardiac, vascular and other applications of diagnostic ultrasound. Errors in system performance might give invalid measurements.We developed two moving string test targets (“Doppler phantoms”) to characterise ultrasound Doppler systems. LÄS MER
2. Well Testing, Methods and Applicability
Sammanfattning : Well testing is widely used today in water wells, oil and gas wells, for geothermal applications, within civil engineering projects, thermal storage and CO2 storage. The overall testing goal is to verify the productivity from a well and/or for characterization of hydraulic and thermal properties, as well as the spatial limitations of an aquifer. LÄS MER
3. Testing and Modelling of Electrical Traction Machines : Performance Characterisation with Measurements from Transient Operation
Sammanfattning : This thesis presents methods to derive and model the performance characteristics of interior permanent magnet machines – a machine type which is commonly used for propulsion of electrical vehicles. The thesis divides the performance characteristics into three subcategories: The electromagnetic properties, the loss profile and the thermal behaviour of the machines. LÄS MER
4. On Subscale Flight Testing : Applications in Aircraft Conceptual Design
Sammanfattning : Downscaled physical models, also referred to as subscale models, have played an essential role in the investigation of the complex physics of flight until the recent disruption of numerical simulation. Despite the fact that improvements in computational methods are slowly pushing experimental techniques towards a secondary role as verification or calibration tools, real-world testing of physical prototypes still provides an unmatched confidence. LÄS MER
5. Exercise Testing in Firefighters : Work Capacity and Cardiovascular Risk Assessment in a Low-Risk Population
Sammanfattning : Background. Firefighting is one of the most physically demanding occupations and it requires a high cardiorespiratory fitness level. LÄS MER