Essays about: "UCA"
Showing result 1 - 5 of 7 essays containing the word UCA.
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1. Non-destructive Evaluation of Ultrasound Contrast Agent
University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)Abstract : Clinical ultrasound imaging techniques can be greatly improved by the use of ultrasound contrast agents (UCAs). While microbubbles (MBs) without shell are unstable and cannot be used for practical applications,a shell produced from biocompatible polyvinylalcohol (PVA) significantly improves chemical versatility and stability. READ MORE
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2. Direction Finding : Determine the direction to a transmitter with randomly placed sensors
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : There are a lot of stand-alone and mobile platforms using transmitters today. Some want to be found while others do not. In our modern society there is a great demand of mobility and communication abilities. This means that several mobile platforms could potentially carry a sensor to record incoming signals to be used in Direction Finding. READ MORE
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3. The effect of environmental and disturbance factors on the presence of different crab species in Pranburi Forest Park, Thailand
University essay from SLU/Dept. of EcologyAbstract : The mangrove forest is one of the world’s most threatened ecosystems today and they have decreased significantly in Southeast Asia over the past 40 years. Brachyura (crabs) are important for this ecosystem and they function as ecosystem engineers with their burrowing activities that affects the soil and carbon uptake. READ MORE
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4. Massive MIMO Channel Modeling
University essay from Lunds universitet/Institutionen för elektro- och informationsteknikAbstract : Massive MIMO has attracted many researchers’ attention as it is a promising technology for future 5G communication systems. To characterize the propagation channels of the massive MIMO and to evaluate system performance, it is important to develop an accurate channel model for it. In this thesis, two correlative models, i.e. READ MORE
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5. Impact of Mutual Coupling among Antenna Arrays on the Performance of the Multipath Simulator System
University essay from Avdelningen för elektronik, matematik och naturvetenskapAbstract : This thesis work presents a study on the impact of mutual coupling among antenna arrays on the performance of the multipath simulator (MPS) system. In MIMO systems, it is a wellknown fact that the mutual coupling significantly affects their system performance. READ MORE