Avancerad sökning

Hittade 3 uppsatser som matchar ovanstående sökkriterier.

  1. 1. Numerical Simulations of Wave Propagation between a Left-Handed Material and a Right-Handed Material

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Balwan Rana; [2021]
    Nyckelord :Negative-Index Material; NIM; Positive-Index Material; RHM; Backward- Wave Propagation; Step-Index Interface; Graded-Index Interface; Left-Handed Material; LHM; Right-Handed Material; RHM; Analytical Solution; Validation; Negativt-Index Material; NIM; Positivt-Index Material; PIM; Bakåtvåg-utbredning; Steg-Index Gränssnitt; Gradering-Index Gränssnitt; Vänsterhänt Material; LHM; Högerhänt Material; RHM; Analytisk Lösning; Validering;

    Sammanfattning : The discovery of metamaterials has led to major advances in different fields of physics including optics, microwave engineering and acoustics. Specific to theoretical electromagnetism, the introduction of metamaterials have led to the development of negative-index materials (NIMs) with simultaneous negative permittivity and negative permeability with backward-wave propagation. LÄS MER

  3. 2. Innovations in the business model : Leapfrogging competitors in the Swedish rental housing market

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :ANNA ZAKIPOUR MAHMOUDI; ARSHAM ATIGHECHI; [2020]
    Nyckelord :Rental housing market; Business model; Start-ups; Multi-Sided Platform; Disruptive Business Model; Building User-base; Affärsmodel; Start-ups; Digitala Plattformar; Disruptiva Affärsmodeller; Bygga kundbas;

    Sammanfattning : A dilemma that has plagued the rental housing market (RHM) in Sweden is the lack of innovation and companies’ ability to disrupt the market. For start-ups with scarce resources, this becomes further problematic as they become limited in how they can approach disruption. LÄS MER

  4. 3. Passive Aircraft Altimetry using GPS as a Bistatic Radar : A simulation model

    Uppsats för yrkesexamina på grundnivå, Institutionen för systemteknik

    Författare :Anders Andersson; Daniel Hallgren; [2003]
    Nyckelord :Datorteknik; Bistatic radar; GPS; altimeter; passive; reflectivity; scattering; altimetry; Datorteknik;

    Sammanfattning : A common way to measure height in aerial vehicles is to use a radar height altimeter (RHM). Since the RHM transmits radar pulses that can be detected, a passive alternative would be desirable in military applications. LÄS MER