Search for dissertations about: "monochromatic"

Showing result 1 - 5 of 43 swedish dissertations containing the word monochromatic.

  2. 1. Screening for diabetic retinopathy : aspects of photographic methods

    Author : Gunvor von Wendt; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Diabetic retinopathy; diabetic maculopathy; screening; retinal photography; photographic fields; grading scale; inter-observer agreement; inter-method agreement; monochromatic photography; retinal neovascularizations; sight-threatening diabetic retinopathy;

    Abstract : Diabetic retinopathy (DRP) is a major cause of acquired blindness and visual impairment among people of working age as well as those aged 65 years or more. About 3-4% of the population has diabetes mellitus, 35-65% of the diabetic patients have some type of DRP and 10-35% have sight-threatening retinopathy. READ MORE

  4. 2. Modeling of Electron Cooling : Theory, Data and Applications

    Author : Karin Rathsman; Tord Johansson; Pia Thörngren; Dieter Prasuhn; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Electron cooling; Beam dynamics; Vlasov technique; Nonlinear damping; Monte Carlo simulations; Nuclear physics; Kärnfysik; Nuclear Physics; Kärnfysik;

    Abstract : The Vlasov technique is used to model the electron cooling force. Limitations of the applicability of the method is obtained by considering the perturbations of the electron plasma. READ MORE

  5. 3. High quality frequency modulated halftoning

    Author : Sasan Gooran; Linköpings universitet; []
    Keywords : ;

    Abstract : The fact that most printing devices, such as laser printers, are restricted to very few colors has led to an increased interest in finding efficient techniques that transform a continuoustone image into a binary one. Such techniques are referred to as halftoning methods. READ MORE

  6. 4. Relativistic effects in Compton scattering of photons from bound electron states

    Author : A. Roland Ribberfors; Linköpings universitet; []
    Keywords : ;

    Abstract : What is light? A correct answer to this question is: I don't know, but I can see some of its properties"! It is exciting to study such a complex thing and to search for models which can help us to try to understand, in a proper way, some of the most interesting behavior of light. We see the sunshine and the radiation makes us warm, undoubtly it must be some kind of energy? Interference experiments with monochromatic light show that the radiation has wave-like properties, but for example scattering experiments predict a particle nature. READ MORE

  7. 5. Premolar autotransplantation in orthodontic treatment : a clinical and radiographic long-term study

    Author : Hans Ulrik Paulsen; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Premolar aplasia and avulsed or malformed anterior teeth are common in young people. Using autotransplantation, it is possible to move problems in the dental arches to regions where they are more easy to solve orthodontically. READ MORE