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11	3D Printing a Maxwell Fish Eye Lens With Periodic Structures Lin, Valentine, Sayed Hamad, Tarek January 2019 (has links) With the rise of high frequency communication systems such as 5G, new types of antennas has to be developed in order to meet the new requirements. In recent years, lens antennas made of periodic structures has been shown to have desirable performance when increasing operational frequency without increasing the size of the antennas. One way of manufacturing the lenses for the antennas are with 3D printers loaded with dielectrics with specified permittivity. This project group studied the process of designing and manufacturing a flat Maxwell fish eye lens at 5 GHz with a bandwidth of 3.5 GHz to 6 GHz. The resulting design is a lens based on a periodic configuration of cuboid unit cells made from dielectrics which consisted of a hole. By choosing the ratio of dielectric and holes in the unit cells, each part of the lens could be tuned to achieve a specific effective refractive index required for realising the Maxwell fish eye lens. Maxwell fish eye lens dielectric lens antenna metamaterial periodic structure 3D printed lenses. Elektroteknik och elektronik
12	From eye lens cells to lens membrane proteins : Development and application of a hybrid high-speed atomic force microscopy/optical microscopy setup / From eye lens cells to lens membrane proteins : Development and application of a hybrid high-speed atomic force microscopy/optical microscopy setup Colom diego, Adai 11 July 2013 (has links) Je utilise le AFM et le HS-AFM pour étudier les caractéristiques mécaniques du cellule du cristallin et aussi des protéines de membrane de la cellule, AQP0 et Connexon. L’énergie d'interaction de la AQP0 est -2.7 kBT, très nécessaire pour former les microdomaines de jonctions (junctional microdomain). Aussi c' est la première fois qu il est possible de voir des protéines individuel et son mouvement en cellules vivants. La formation de microdomaines est important pour la transparence du cristallin, et le AQP1 ne le peux faire. / I used the AFM and HS-AFM for characterise the eye lens and the eye lens membrane protein, AQP0 and connexon.A QP0-AQP0 interaction energy is -2.7kBT, it is important for the formation of junctional microdomains, which keep the distance between the cells lens and lens transparency. this is the first report which is present time the visualization of unlabelled membrane proteins on living cells under physiological conditions. AQP1 can not maintain the lens transparency because it does not form junctional microdomains. HS-AFM Cristallin du œil Aquaporin-0 Aquporin-1 Connexon Microdomaines de jonctions Protéine de membrane Young’s modulus HS-AFM Eye lens Aquaporin-0 Aquporin-1 Connexon Junctional microdomain Membrane protein Young’s modulus 572

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3D Printing a Maxwell Fish Eye Lens With Periodic Structures

From eye lens cells to lens membrane proteins : Development and application of a hybrid high-speed atomic force microscopy/optical microscopy setup / From eye lens cells to lens membrane proteins : Development and application of a hybrid high-speed atomic force microscopy/optical microscopy setup