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Visar resultat 1 - 5 av 22 avhandlingar som matchar ovanstående sökkriterier.
1. Characterization of Small Antennas & Wireless Devices for MIMO Systems in Multipath & Line-of-Sight
Sammanfattning : The current thesis investigates over-the-air (OTA) performance characterization of small antennas and wireless terminals in rich isotropic multipath (RIMP) environment, as well as in pure line-of-sight (LOS) environment when taking into account the random positions and orientations of the mobile terminals caused by the realistic user behavior. The latest mobile wireless terminals such as smart phones and tablets can be used in any random orientation thereby making even a received LOS-component appear as a random voltage at the antenna ports over time. LÄS MER
2. Magnetic Resonance Imaging of the Heart : Image quality, measurement accuracy and patient experience
Sammanfattning : Background: Non-invasive diagnostic imaging of atherosclerotic coronary artery disease (CAD) is frequently carried out with cardiovascular magnetic resonance imaging (CMR) or myocardial perfusion single photon emission computed tomography (MPS). CMR is the gold standard for the evaluation of scar after myocardial infarction and MPS the clinical gold standard for ischemia. LÄS MER
3. On Manufacturing Strategies : Competing Through Inter-Organizational Collaboration
Sammanfattning : Globalization increases the competition among small and medium sized companies. It is possible for their customers, often large systems integrators, to choose suppliers from all around the world. Swedish suppliers are often not competitive only regarding cost consequently simple work tasks are more and more located in low wage countries. LÄS MER
4. Assessment of Ventricular Function in Normal and Failing Hearts Using 4D Flow CMR
Sammanfattning : Heart failure is a common disorder and a major cause of illness and death in the population, creating an enormous health-care burden. It is a complex condition, representing the end-point of many cardiovascular diseases. LÄS MER
5. Deadlock Free Routing in Mesh Networks on Chip with Regions
Sammanfattning : There is a seemingly endless miniaturization of electronic components, which has enabled designers to build sophisticated computing structureson silicon chips. Consequently, electronic systems are continuously improving with new and more advanced functionalities. LÄS MER