Sökning: "elektronik och fotonik"
Visar resultat 1 - 5 av 119 avhandlingar innehållade orden elektronik och fotonik.
Sammanfattning : Gas detection is crucial in a wide range of fields and applications, such as safety and process control in the industry, atmospheric sciences, and breath diagnostics. Optical gas sensing offers some key advantages, compared to other sensing methods such as electrochemical and semiconductor sensing: high specificity, fast response, and minimal drift. LÄS MER
Sammanfattning : Early detection is vital to successfully treating breast cancer, and mammography screening is the most efficient and wide-spread method to reach this goal. Imaging low-contrast targets, while minimizing the radiation exposure to a large population is, however, a major challenge. LÄS MER
Sammanfattning : Our expanding modern society demands more and more energy, and with diminishing fossil fuel supplies and threats of global warming, it has become imperative that we use our energy efficiently. For decades, district heating has proved to be a stable and energy-friendly way of supplying space- and hot-water heating to connected customers. LÄS MER
Sammanfattning : Printed Wiring Board (PWB) and Printed Circuit Board Assembly (PCBA) testing aims to ensure an error free board after the etching and the assembly processes. After the etching process, several types of errors might occur such as opens and bridges, which are already, showstoppers in Direct Current (DC) applications. LÄS MER
Sammanfattning : The convergence of sensory signals plays an important role in perception. Two cases of convergence are examined in this thesis by means of modelling; the case when the converging signals are congruent, which leads to combination and an enhancement of perception, and the case when they are incongruent. LÄS MER