Sökning: "electronic proof"

Visar resultat 1 - 5 av 116 avhandlingar innehållade orden electronic proof.

  1. 1. Surface analysis of low dimensional materials : revealing their electronic properties by advanced spectroscopy

    Författare :Vladimir Miranda la Hera; Thomas Wågberg; Eduardo Gracia-Espino; Tomas Edvinsson; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Low-dimensional materials; surface science; surface-sensitive techniques; angle-resolved photoemission spectroscopy; ultraviolet photoemission spectroscopy; electronic properties;

    Sammanfattning : Low-dimensional materials (0D, 1D, 2D) have been widely used to develop modern miniaturized (micro- and nano-) technology. The use of these materials come from their extraordinary optical, electrical, thermal, and mechanical properties, which are very different from the bulk crystal. LÄS MER

  3. 2. Massive MIMO: Prototyping, Proof-of-Concept and Implementation

    Författare :Steffen Malkowsky; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Massive MIMO; Testbed Design; Prototyping; ASIP; Processor;

    Sammanfattning : Wireless communication is evolving rapidly with ever more connected devicesand significantly increasing data rates. Since the invention of the smartphoneand the mass introduction of mobile apps, users demand more andmore traffic to stream music, watch high-definition video or to simply browsethe internet. LÄS MER

  4. 3. Theory and Design of Efficient Active Load Modulation Power Amplifiers

    Författare :Han Zhou; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; GaN; circulator; non-reciprocity; Doherty power amplifier; Combiner synthesis; CLMA; deep power back-off; energy efficiency;

    Sammanfattning : The increasing demand for mobile data traffic has put new challenges and requirements for the development of the wireless communication infrastructure. The performance of the RF power amplifier (PA) is, in particular, of great importance, since it is the key building block for microwave transmitters in base stations and radio link equipment. LÄS MER

  5. 4. Spintronic and Electronic Oscillators for Magnetic Field Sensing and Ising Machines

    Författare :Dagur Ingi Albertsson; Ana Rusu; Johan Åkerman; Saul Rodriguez Duenas; Atila Alvandpour; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Spintronic Oscillator; Behavioural Modeling; Macrospin Approximation; Magnetic Field Sensor; Ising Machine; Duffing Oscillator; Kuramoto Model; Informations- och kommunikationsteknik; Information and Communication Technology;

    Sammanfattning : Oscillators can exhibit a range of complex dynamics which are often encountered in nature. These characteristics include synchronization, injection locking, chaos, bifurcations, etc. To date, the applications of electronic oscillators has mostly been limited to communication systems. LÄS MER

  7. 5. Banker och Internet - särskilt om kundaktiverade betalningsinstruktioner

    Författare :Lennart Johansson; Juridiska institutionen; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; bank-customer relationship; banking law; credit transfer; electronic proof; Internet; financial services; payment order; bankrätt;

    Sammanfattning : This thesis deals with legal issues arisen from consumer-activated payment orders, regarding credit transfers, which are initiated via the Internet under an agreement (about using Internet-services) previously entered into between the bank and the payer (or the originator). This Internet-service is in the thesis called Internet banking. LÄS MER