Essays about: "Hexagonal"

Showing result 21 - 25 of 63 essays containing the word Hexagonal.

1. 21. Electron Assisted Growth of Graphene atop Ir(111) supported Hexagonal Boron Nitride

   University essay from Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

   Author : Lassi Linnala; [2019]
   Keywords : Two-dimensional materials; Two-dimensional heterostructures; Graphene; hexagonal Boron Nitride; STM; LEED; Physics and Astronomy;

   Abstract : Vertical heterostructures between graphene (Gr) and hexagonal boron nitride (hBN) have attracted a great deal of interest, due to their potential applications in the semiconductor industry as new and superior transistor materials. The direct growth of the heterostucture still remains challenging and in this bachelor thesis, I report a novel electron assisted growth technique, which is used to attempt to grow Gr atop hBN atop an Ir(111) single crystal surface. READ MORE

3. 22. Wireless communication using metasurfaces for condition monitoring in motor

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Neelu Kambisseri Roby; [2018]
   Keywords : Gap waveguide; metasurface; holey electromagnetic band gap EBG structures; periodic structures; parallel plate mode.; Gap vågledare; metaytor; håliga elektromagnetiskta bandgap-strukturer EBG ; periodiska strukturer; parallellplattform.;

   Abstract : Wireless sensors are used widely for condition monitoring in electric machines. The metal enclosure of an electric motor restricts the signal from sensors to radiate outside. The signal from the metal cavity needs to be guided to the only opening in the enclosure, through a narrow gap between the stator and the rotating rotor. READ MORE

4. 23. Using Self-Organizing Maps to Identify Operational Risk

   University essay from Lunds universitet/Matematisk statistik

   Author : Lukas Ljungblom; Jonatan Berggren; [2018]
   Keywords : Self-organizing Map; Machine Learning; Neural Network; Clustering; Operational Risk; Audit Change; Mathematics and Statistics;

   Abstract : In recent years, the awareness and concern for operational risk in financial institutions have increased, and several disastrous events in the last two decades been caused by human error. With this, the regulatory demands have increased on the financial institutions to control operational risk. READ MORE

5. 24. The Impact of Hexagonal grid on thePrincipal Component of Natural Images

   University essay from Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

   Author : Sai Venkata Akshay Mattaparthi; [2018]
   Keywords : Hexagonal Image Processing; Power Spectrum;

   Abstract : The visual processing in the real world is different from the digital world. Monkey’s and a human’s visual world is richer and more colourful affording sight of flies, regardless of whether they are immobile or airborne. READ MORE

6. 25. How ionized radicals bind to Ir(111) supported graphene

   University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Synkrotronljusfysik

   Author : David Johansson; [2018]
   Keywords : Graphene; Radicals; Physics and Astronomy;

   Abstract : In this thesis radical adsorption onto Ir(111) supported graphene at room temperature is studied using scanning tunneling microscopy. The radicals were formed in by thermal cleavage of C2H4 molecules. READ MORE