Search for dissertations about: "Frequency Scanning"
Showing result 1 - 5 of 89 swedish dissertations containing the words Frequency Scanning.
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1. Fabrication and Characterization of Aluminum Single Electron Transistors for Scanning Probes
Abstract : The main objective of the work presented in this thesis was to fabricatescanning single electron transistor probes that operate at pumped liquid heliumtemperatures. This required single electron transistors (SETs) with low resistance (R_) and relatively high charging energy (E_C), and the technology tointegrate SETs onto probes. READ MORE
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2. Flip chip for high frequency applications : materials aspects
Abstract : Flip chip has since decades been the primary choice for chip interconnect for high performance circuits. Over the last few years, interest from the microwave arena has increased, and at this point in time microwave flip chip is a possible option for volume production. READ MORE
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3. Digital Mammography with a Photon Counting Detector in a Scanned Multislit Geometry
Abstract : Mammography screening aims to reduce the number of breast cancer deaths by early detection of the disease, which is one of the leading causes of deaths for middle aged women in the western world. The risk from the x-ray radiation in mammography is relatively low but still a factor in the benefit-risk ratio of screening. READ MORE
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4. Aspects on Dynamic Power Flow Controllers and Related Devices for Increased Flexibility in Electric Power Systems
Abstract : This thesis studies different aspects of Flexible AC Transmission System (FACTS) devices which are used to improve the power transfer capability and increase the controllability in electric power systems. In the thesis, different aspects on the usage and control of Dynamic Power Flow Controllers (DPFC) and related FACTS devices are studied. READ MORE
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5. Scanning Probe Microscopy: Design and Applications
Abstract : A compact scanning tunneling microscope (STM) and a scanning ion-conductance microscope (SICM) has been constructed. The concentric microscope head was built around a commercial piezoelectric inchworm motor that was used for coarse positioning. The microscope has a high resonance frequency (9.6 kHz), low noise (0. READ MORE