Search for dissertations about: "tomography"

Showing result 36 - 40 of 1143 swedish dissertations containing the word tomography.

  2. 36. Ultra-Wideband Time Domain Measurement Systems for Microwave Tomography

    Author : Xuezhi Zeng; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Time DomainMeasurement; Ultra-Wideband; EquivalentTime Sampling; Real Time Sampling; Microwave Tomography; Measurement Error; Frequency Domain Measurement;

    Abstract : As a potential imaging modality for biomedical applications, microwave tomography has attracted a lot of interests in recent years. With microwave tomography, microwave signals are transmitted into the biological tissues and the scattered fields are recorded. READ MORE

  4. 37. A Microwave Tomography Framework for Monitoring of Pharmaceutical Processes

    Author : Livia Cerullo; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Sensitivity Analysis; Microwave Tomography; Reconstruction Algorithm; Parameterization; Pharmaceutical Processes;

    Abstract : Industrial pharmaceutical processes may be very difficult to monitor and control. Today, an important research fields is non-invasive measurement techniques that provide information about thematerial distribution inside the process. In this thesis, a microwave tomography (MWT) framework for monitoring of pharmaceutical processes is presented. READ MORE

  5. 38. Transmission Electron Tomography and In-situ Analysis of Nanowires

    Author : Axel Persson; NanoLund: Centre for Nanoscience; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Transmission electron microscopy TEM ; Electron tomography; Nanowires NWs ; Aerotaxy; In-situ;

    Abstract : As semiconducting nanowires have promising applications for materials science, nanoelectronics and photovoltaic devices, absolute control of their structure, morphology and composition is a prerequisite for their functionality. Nanowires, grown through the vapor-liquid-solid (VLS) method, exhibit a complex relationship between their liquid seed particle and what properties, such as the aforementioned ones, the wire adopts in the end. READ MORE

  6. 39. Nanoscale electron tomography and compositional analysis of Aerotaxy nanowires

    Author : Axel Persson; -lup-obsolete; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Transmission Electron Microscopy; Electron tomography; Nanowires; Aerotaxy;

    Abstract : One common goal of sample analysis is to provide structural, compositional, or functional data in order to improve production parameters. One instrument specialized in such structural and compositional analysis with a high spatial resolution is the transmission electron microscope (TEM). READ MORE

  7. 40. Electron tomography and optical modelling for organic solar cells

    Author : Viktor Andersson; Olle Inganäs; Joachim Loos; Linköpings universitet; []
    Keywords : Organic solar cells; Electron tomography; Optical modelling;

    Abstract : Organic solar cells using carbon based materials have the potential to deliver cheap solar electricity. The aim is to be able to produce solar cells with common printing techniques on flexible substrates, and as organic materials can be made soluble in various solvents, they are well adapted to such techniques. READ MORE